Details of the Researcher

PHOTO

Haruki Kitazawa
Section
Graduate School of Agricultural Science
Job title
Professor
Degree
  • 博士(農学)(東北大学)

e-Rad No.
10204885

Research History 11

  • 2022/04 - Present
    Dean, Graduate School of Agricultural Science / Faculty of Agriculture, Tohoku University

  • 2019/04 - Present
    Tohoku University Graduate School of Agricultural Science

  • 2022/08 - 2025/07
    Taipei Medical University Visiting Professor

  • 2020/04 - 2022/03
    International Education and Research Center for Food and Agricultural Immunology Director

  • 2015/04 - 2019/03
    食と農免疫国際教育研究センター(兼任) Vice Director (Education)

  • 2007/04 - 2019/03
    Associate Professor, Graduate School of Agricultural Science, Tohoku University

  • 2002/04 - 2007/03
    Associate Professor, Graduate School of Agricultural Science, Tohoku University

  • 2006/09 - 2006/12
    Program to Enhance International Standing of Higher Education in Japan 2006 (NCI/NIH, USA)

  • 1997/04 - 2002/03
    Graduate School of Agricultural Science, Tohoku University, Assistant Professor

  • 1988/04 - 1997/03
    Faculty of Agriculture, Tohoku University, Assistant Professor

  • 1994/10 - 1996/04
    JSPS Fellowships for Research Abroad (NCI/NIH, USA)

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Education 2

  • Tohoku University Graduate School, Division of Agriculture 畜産学

    1986/04 - 1988/03

  • Tohoku University Faculty of Agriculture 畜産

    - 1986/03

Committee Memberships 48

  • Japanese Society of Lactic acid bacteria (JSLAB) President

    2023/07 - Present

  • 日本畜産学会 機関誌編集委員会委員

    2021/04 - Present

  • 東北畜産学会 評議員

    2020/04 - Present

  • 日本酪農科学会 評議員

    2020 - Present

  • Milk Science Editorial Board Member

    2019/01 - Present

  • Bioscience of Microbiota, Food and Health 論文編集委員

    2019/01 - Present

  • 日本獣医学会 評議員

    2018/09 - Present

  • Front. Immunol. 論文編集委員(Nutritional Immunology)

    2018/01 - Present

  • ISRN Veterinary Science 論文編集委員

    2010/07 - Present

  • World Journal of Gastrointestinal Pathophysiology Editorial Board Member

    2010/03 - Present

  • 日本食品免疫学会 幹事

    2006/04 - Present

  • Japanese Association for Food Immunology 研究委員会委員

    2005/04 - Present

  • 日本食品免疫学会 研究委員会委員

    2005/04 - Present

  • 東北畜産学会 論文審査員

    2005/04 - Present

  • 日本畜産学会 理事

    2021/04 - 2023/03

  • 日本畜産学会 日本畜産学会第129回大会 大会長

    2021/09 - 2021/09

  • 家畜感染症学会 第10回家畜感染症学会学術集会 大会長

    2020/12 - 2020/12

  • 家畜感染症学会 評議員

    2012/04 - 2018/12

  • Microorganisms Guest Editor

    2015/10 - 2017/09

  • Front. Immunol. 特別号論文編集長

    2015/10 - 2017/09

  • Microorganisms 特別号論文編集長

    2015/10 - 2017/09

  • Front. Immunol. 特別号論文編集長

    2015/10 - 2017/09

  • (公財)日本獣医学会 評議委員

    2015/09 - 2017/09

  • (公財)日本獣医学会 評議委員

    2015/09 - 2017/09

  • 東北畜産学会 編集委員

    2015/04 - 2017/03

  • 東北畜産学会 編集委員

    2015/04 - 2017/03

  • Japanese Society for Lactic Acid Bacteria 理事(庶務)

    2011/07 - 2015/07

  • 日本乳酸菌学会 理事(庶務)

    2011/07 - 2015/07

  • BioMed Research International Lead Guest Editor

    2014/02 - 2015/03

  • BioMed Research International 論文編集長

    2014/02 - 2015/03

  • 日本農芸化学会2013年度大会 大会実行委員会委委員

    2012/04 - 2013/04

  • 日本農芸化学会2013年度大会 大会実行委員会委委員

    2012/04 - 2013/04

  • 東北畜産学会 編集委員

    2009/04 - 2012/03

  • 東北畜産学会 編集委員

    2009/04 - 2012/03

  • Japanese Society for Bioscience, Biotechnology, and Agrochemistry 広報委員会委員

    2006/04 - 2012/03

  • 日本農芸化学会 広報委員会委員

    2006/04 - 2012/03

  • 独立行政法人 農業•食品産業技術総合研究機構 畜産草地研究所 研究プロジェクト評価委員

    2007/04 - 2010/03

  • 独立行政法人 農業•食品産業技術総合研究機構 畜産草地研究所 研究プロジェクト評価委員

    2007/04 - 2010/03

  • 東北畜産学会 幹事長

    2005/04 - 2007/03

  • 東北畜産学会 幹事長

    2005/04 - 2007/03

  • 日本畜産学会第98回大会(仙台) 会計幹事

    2000/10 - 2001/04

  • 日本畜産学会第98回大会(仙台) 会計幹事

    2000/10 - 2001/04

  • 東北畜産学会 会計幹事

    1997/04 - 1999/03

  • 東北畜産学会 会計幹事

    1997/04 - 1999/03

  • 日本酪農科学会 平成23年度酪農科学シンポジウム 日本酪農科学会創立60周年記念大会 副実行委員長

    2011/09 -

  • 日本酪農科学会 平成23年度酪農科学シンポジウム 日本酪農科学会創立60周年記念大会 副実行委員長

    2011/09 -

  • 日本乳酸菌学会 2010年度大会 副実行委員長

    2010/07 -

  • 日本乳酸菌学会 2010年度大会 副実行委員長

    2010/07 -

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Professional Memberships 15

  • American Society for Microbiology (ASM)

  • 乳房炎研究会

  • 東北畜産学会

  • Japanese Society of Nutrition and Food Science

  • Society for Mucosal Immunology (SMI)

  • 腸内細菌学会

  • Japanese Dairy Science Association

  • Japanese Society for Bio-Defence Research

  • Japan Society for Lactic Acid Bacteria (JSLAB)

  • American Dairy Science Association

  • American Society of Animal Science

  • 日本免疫学会

  • Japanese Association of Food Immunology

  • 日本農芸化学会

  • 日本畜産学会

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Research Interests 8

  • Immunosynbiotics

  • (Para)immunobiotics

  • Postbiotics

  • Food and Feed Immunology

  • Bio-Defense

  • Mucosal immunoregulation

  • Lactic acid bacteria

  • Fermented milk

Research Areas 3

  • Life sciences / Applied molecular and cellular biology / Applied Molecular Cell Biology

  • Life sciences / Food sciences /

  • Life sciences / Animal production science /

Awards 20

  1. 日本農学賞\読売農学賞

    2025/02 (一社)日本農学会/読売新聞 イムノバイオティクスの畜産応用基盤研究

  2. Poster Award (1st Place)

    2023/04 2nd International Hepatitis E Symposium AN EXPERIMENTAL VACCINE FOR HEPATITIS E ADJUVANTATED WITHSAPONINS DERIVED FROM LEAVES FROM THE SOAP TREE QUILLAJABRASILIENSIS

  3. 日本食品免疫学会優秀ポスター賞

    2022/11 日本食品免疫学会2022年度大会(第18回学術大会) 緑茶葉より単離した乳酸菌のIL-12発現誘導の作用機序の解析

  4. 日本食品免疫学会優秀ポスター賞

    2019/11 日本食品免疫学会2019年度大会(第15回学術大会) ブタ由来乳酸桿菌ライブラリーの構築とイムノバイオティック評価

  5. 日本食品免疫学会優秀ポスター賞

    2016/11/09 日本食品免疫学会2016年度大会(第12回学術大会) 炎症性腸疾患予防・改善のための発展的イムノバイオティック評価系構築

  6. Best Poster Presentation Award

    2016/10/21 V International Symposium on Lactic Acid Bacteria Isolation and characterization of Lactobacillus plantarum MPL16: A Wakame-utilizing immunobiotic strain from swine feces

  7. Best Oral Presentation Award

    2016/10/21 V International Symposium on Lactic Acid Bacteria Comparative immunotranscriptomic analysis of two immunobiotic strains with antiviral capabilities in porcine intestinal epithelial cells

  8. 日本食品免疫学会優秀ポスター賞

    2015/10/16 日本食品免疫学会2015年度大会(第11回学術大会) ブタ由来細胞におけるペプチドグリカン認識タンパク質の発現とその調節

  9. 日本食品免疫学会優秀ポスター賞

    2014/10/17 日本食品免疫学会設立10周年記念大会(第10回学術大会) ロタウイルスのウシ腸管上皮細胞感染系によるイムノバオティック評価系への応用

  10. 森永奉仕会賞

    2013/06/08 公益財団法人 森永奉仕会 乳酸菌・ビフィズス菌のパターン認識受容体を介する腸管免疫評価系構築と調節機構解明

  11. The Food Immunology Award for Basic Research

    2012/10 Japanese Association for Food Immunology Basic studies on food and feed immunology for immunobiotics

  12. Animal Science Journal Excellent Paper Award

    2012/03/28 日本畜産学会 Bacteriocin production of probiotic Lactobacillus gasseri LA39 isolated from human feces in milk-based media

  13. 日本食品免疫学会優秀ポスター賞

    2011/10/19 日本食品免疫学会2011年度大会(第7回学術大会) ウシ腸管上皮細胞によるイムノバイオティクスの抗ウイルス性免疫評価

  14. Animal Science Journal Excellent Paper Award

    2011/03/27 日本畜産学会 Advanced molecular immunoassay system for immunobiotic lactic acid bacteria using a transfectant of Toll-like receptor 2.

  15. 「世界の発酵乳」論文賞

    2008/07/07 財団法人 三島海雲記念財団 プロバイオティクスからイムノバイオティクス- 生体認識機構の解明から期待される世界的発展性 -

  16. Animal Science Journal Excellent Paper Award

    2008/03/27 日本畜産学会 Development of immune assay system for both CpG and non-CpG DNA from lactic acid bacteria using a transfectant of swine Toll-like receptor 9

  17. 日本畜産学会賞

    2006/03/29 日本畜産学会 イムノバイオティクスからの新規免疫調節因子の発見とその分子免疫評価系の構築

  18. 農学研究科長奨励賞

    2005/09/18 東北大学大学院農学研究科 抗生剤に頼らない健強動物育成用”イムノバイオティック飼料添加物”の開発

  19. Award of Japanese Society for the Promotion of Science (Postdoctoral Fellowship Fund for Research Abroad Program)

    1994/10 日本学術振興会

  20. 日本畜産学会奨励賞

    1994/03 日本畜産学会 乳酸菌が生産する菌体外多糖の免疫賦活化能に関する研究

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Papers 324

  1. Ligilactobacillus salivarius Strains Isolated From the Porcine Gut Modulate Innate Immune Responses in Epithelial Cells and Improve Protection Against Intestinal Viral-Bacterial Superinfection. International-journal International-coauthorship Peer-reviewed

    Yuhki Indo, Shugo Kitahara, Mikado Tomokiyo, Shota Araki, Md Aminul Islam, Binghui Zhou, Leonardo Albarracin, Ayako Miyazaki, Wakako Ikeda-Ohtsubo, Tomonori Nochi, Takato Takenouchi, Hirohide Uenishi, Hisashi Aso, Hideki Takahashi, Shoichiro Kurata, Julio Villena, Haruki Kitazawa

    Frontiers in immunology 12:652923 1-22 2021/05

    Publisher:

    DOI: 10.3389/fimmu.2021.652923  

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    Previously, we constructed a library of Ligilactobacillus salivarius strains from the intestine of wakame-fed pigs and reported a strain-dependent capacity to modulate IFN-β expression in porcine intestinal epithelial (PIE) cells. In this work, we further characterized the immunomodulatory activities of L. salivarius strains from wakame-fed pigs by evaluating their ability to modulate TLR3- and TLR4-mediated innate immune responses in PIE cells. Two strains with a remarkable immunomodulatory potential were selected: L. salivarius FFIG35 and FFIG58. Both strains improved IFN-β, IFN-λ and antiviral factors expression in PIE cells after TLR3 activation, which correlated with an enhanced resistance to rotavirus infection. Moreover, a model of enterotoxigenic E. coli (ETEC)/rotavirus superinfection in PIE cells was developed. Cells were more susceptible to rotavirus infection when the challenge occurred in conjunction with ETEC compared to the virus alone. However, L. salivarius FFIG35 and FFIG58 maintained their ability to enhance IFN-β, IFN-λ and antiviral factors expression in PIE cells, and to reduce rotavirus replication in the context of superinfection. We also demonstrated that FFIG35 and FFIG58 strains regulated the immune response of PIE cells to rotavirus challenge or ETEC/rotavirus superinfection through the modulation of negative regulators of the TLR signaling pathway. In vivo studies performed in mice models confirmed the ability of L. salivarius FFIG58 to beneficially modulate the innate immune response and protect against ETEC infection. The results of this work contribute to the understanding of beneficial lactobacilli interactions with epithelial cells and allow us to hypothesize that the FFIG35 or FFIG58 strains could be used for the development of highly efficient functional feed to improve immune health status and reduce the severity of intestinal infections and superinfections in weaned piglets.

  2. Lactiplantibacillus plantarum as a Potential Adjuvant and Delivery System for the Development of SARS-CoV-2 Oral Vaccines International-journal International-coauthorship Peer-reviewed

    Julio Villena†, Chang Li†, Maria Guadalupe Vizoso-Pinto, Jacinto Sacur, Linzhu Ren*, Haruki Kitazawa* (†:Equal contribution)

    Microorganisms 9:683 (4) 1-26 2021/03/26

    Publisher: MDPI AG

    DOI: 10.3390/microorganisms9040683  

    eISSN: 2076-2607

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    The most important characteristics regarding the mucosal infection and immune responses against the Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2) as well as the current vaccines against coronavirus disease 2019 (COVID-19) in development or use are revised to emphasize the opportunity for lactic acid bacteria (LAB)-based vaccines to offer a valid alternative in the fight against this disease. In addition, this article revises the knowledge on: (a) the cellular and molecular mechanisms involved in the improvement of mucosal antiviral defenses by beneficial Lactiplantibacillus plantarum strains, (b) the systems for the expression of heterologous proteins in L. plantarum and (c) the successful expressions of viral antigens in L. plantarum that were capable of inducing protective immune responses in the gut and the respiratory tract after their oral administration. The ability of L. plantarum to express viral antigens, including the spike protein of SARS-CoV-2 and its capacity to differentially modulate the innate and adaptive immune responses in both the intestinal and respiratory mucosa after its oral administration, indicates the potential of this LAB to be used in the development of a mucosal COVID-19 vaccine.

  3. Selection of immunobiotic ligilactobacillus salivarius strains from the intestinal tract of wakame-fed pigs: Functional and genomic studies International-journal Peer-reviewed

    Zhou, B., Albarracin, L., Indo, Y., Arce, L., Masumizu, Y., Tomokiyo, M., Islam, M.A., Garcia-Castillo, V., Ikeda-Ohtsubo, W., Nochi, T., Morita, H., Takahashi, H., Kurata, S., Villena, J., Kitazawa, H.

    Microorganisms 8 (11) 1-28 2020/10

    DOI: 10.3390/microorganisms8111659  

    ISSN: 2076-2607

  4. The Modulation of Mucosal Antiviral Immunity by Immunobiotics: Could They Offer Any Benefit in the SARS-CoV-2 Pandemic? International-journal International-coauthorship Peer-reviewed

    Julio Villena, Haruki Kitazawa

    Frontiers in Physiology 11 (699) 1-20 2020/06/16

    Publisher: Frontiers Media SA

    DOI: 10.3389/fphys.2020.00699  

    eISSN: 1664-042X

  5. Exopolysaccharides From Streptococcus thermophilus ST538 Modulate the Antiviral Innate Immune Response in Porcine Intestinal Epitheliocytes International-journal Peer-reviewed

    Mizuno, H., Tomotsune, K., Islam, M.A., Funabashi, R., Albarracin, L., Ikeda-Ohtsubo, W., Aso, H., Takahashi, H., Kimura, K., Villena, J., Sasaki, Y., Kitazawa, H.

    Frontiers in Microbiology 11 1-14 2020/05/19

    DOI: 10.3389/fmicb.2020.00894  

    ISSN: 1664-302X

  6. Lipoteichoic Acid Is Involved in the Ability of the Immunobiotic Strain Lactobacillus plantarum CRL1506 to Modulate the Intestinal Antiviral Innate Immunity Triggered by TLR3 Activation Peer-reviewed

    Mizuno, H., Arce, L., Tomotsune, K., Albarracin, L., Funabashi, R., Vera, D., Islam, M.A., Vizoso-Pinto, M.G., Takahashi, H., Sasaki, Y., Kitazawa, H., Villena, J.

    Frontiers in Immunology 11 1-14 2020/04

    DOI: 10.3389/fimmu.2020.00571  

    ISSN: 1664-3224

  7. Efficient Selection of New Immunobiotic Strains With Antiviral Effects in Local and Distal Mucosal Sites by Using Porcine Intestinal Epitheliocytes Peer-reviewed

    Albarracin, L., Garcia-Castillo, V., Masumizu, Y., Indo, Y., Islam, M.A., Suda, Y., Garcia-Cancino, A., Aso, H., Takahashi, H., Kitazawa, H., Villena, J.

    Frontiers in Immunology 11 1-16 2020/03

    DOI: 10.3389/fimmu.2020.00543  

    ISSN: 1664-3224

  8. Paraimmunobiotic Bifidobacteria Modulate the Expression Patterns of Peptidoglycan Recognition Proteins in Porcine Intestinal Epitheliocytes and Antigen Presenting Cells. International-journal Peer-reviewed

    Hikaru Iida, Masanori Tohno, Md Aminul Islam, Nana Sato, Hisakazu Kobayashi, Leonardo Albarracin, Akm Humayun Kober, Wakako Ikeda-Ohtsubo, Yoshihito Suda, Hisashi Aso, Tomonori Nochi, Ayako Miyazaki, Hirohide Uenishi, Noriyuki Iwabuchi, Jin-Zhong Xiao, Julio Villena, Haruki Kitazawa

    Cells 8 (8) 1-22 2019/08/14

    DOI: 10.3390/cells8080891  

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    Peptidoglycan recognition proteins (PGLYRPs) are a family of pattern recognition receptors (PRRs) that are able to induce innate immune responses through their binding to peptidoglycan (PGN), lipopolysaccharide, or lipoteichoic acid, or by interacting with other PRR-ligands. Recently, progress has been made in understanding the immunobiology of PGLYRPs in human and mice, however, their functions in livestock animals have been less explored. In this study, we characterized the expression patterns of PGLYRPs in porcine intestinal epithelial (PIE) cells and antigen-presenting cells (APCs) and their modulation by the interactions of host cells with PRR-ligands and non-viable immunomodulatory probiotics referred to as paraimmunobiotics. We demonstrated that PGLYRP-1, -2, -3, and -4 are expressed in PIE cells and APCs from Peyer's patches, being PGLYPR-3 and -4 levels higher than PGLYRP-1 and -2. We also showed that PGLYRPs expression in APCs and PIE cells can be modulated by different PRR agonists. By using knockdown PIE cells for TLR2, TLR4, NOD1, and NOD2, or the four PGLYRPs, we demonstrated that PGLYRPs expressions would be required for activation and functioning of TLR2, TLR4, NOD1, and NOD2 in porcine epitheliocytes, but PGLYRPs activation would be independent of those PRR expressions. Importantly, we reported for the first time that PGLYRPs expression can be differentially modulated by paraimmunobiotic bifidobacteria in a strain-dependent manner. These results provide evidence for the use of paraimmunobiotic bifidobacteria as an alternative for the improvement of resistance to intestinal infections or as therapeutic tools for the reduction of the severity of inflammatory damage in diseases in which a role of PGLYRPs-microbe interaction has been demonstrated.

  9. Genomic Characterization of Lactobacillus delbrueckii TUA4408L and Evaluation of the Antiviral Activities of its Extracellular Polysaccharides in Porcine Intestinal Epithelial Cells. International-journal Peer-reviewed

    Paulraj Kanmani, Leonardo Albarracin, Hisakazu Kobayashi, Elvira Maria Hebert, Lucila Saavedra, Ryoya Komatsu, Brian Gatica, Ayako Miyazaki, Wakako Ikeda-Ohtsubo, Yoshihito Suda, Hisashi Aso, Shintaro Egusa, Takashi Mishima, Alexis Salas-Burgos, Hideki Takahashi, Julio Villena, Haruki Kitazawa

    Frontiers in immunology 9 (2178) 2178-2178 2018

    DOI: 10.3389/fimmu.2018.02178  

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    In lactic acid bacteria, the synthesis of exopolysaccharides (EPS) has been associated with some favorable technological properties as well as health-promoting benefits. Research works have shown the potential of EPS produced by lactobacilli to differentially modulate immune responses. However, most studies were performed in immune cells and few works have concentrated in the immunomodulatory activities of EPS in non-immune cells such as intestinal epithelial cells. In addition, the cellular and molecular mechanisms involved in the immunoregulatory effects of EPS have not been studied in detail. In this work, we have performed a genomic characterization of Lactobacillus delbrueckii subsp. delbrueckii TUA4408L and evaluated the immunomodulatory and antiviral properties of its acidic (APS) and neutral (NPS) EPS in porcine intestinal epithelial (PIE) cells. Whole genome sequencing allowed the analysis of the general features of L. delbrueckii TUA4408L genome as well as the characterization of its EPS genes. A typical EPS gene cluster was found in the TUA4408L genome consisting in five highly conserved genes epsA-E, and a variable region, which includes the genes for the polymerase wzy, the flippase wzx, and seven glycosyltransferases. In addition, we demonstrated here for the first time that L. delbrueckii TUA4408L and its EPS are able to improve the resistance of PIE cells against rotavirus infection by reducing viral replication and regulating inflammatory response. Moreover, studies in PIE cells demonstrated that the TUA4408L strain and its EPS differentially modulate the antiviral innate immune response triggered by the activation of Toll-like receptor 3 (TLR3). L. delbrueckii TUA4408L and its EPS are capable of increasing the activation of interferon regulatory factor (IRF)-3 and nuclear factor κB (NF-κB) signaling pathways leading to an improved expression of the antiviral factors interferon (IFN)-β, Myxovirus resistance gene A (MxA) and RNaseL.

  10. Immunoregulatory effects triggered by immunobiotic Lactobacillus jensenii TL2937 strain involve efficient phagocytosis in porcine antigen presenting cells Peer-reviewed

    Kohichiro Tsukida, Takuya Takahashi, Hikaru Iida, Paulraj Kanmani, Yoshihito Suda, Tomonori Nochi, Shuichi Ohwada, Hisashi Aso, Sou Ohkawara, Seiya Makino, Hiroshi Kano, Tadao Saito, Julio Villena, Haruki Kitazawa

    BMC IMMUNOLOGY 17 (21) 1-12 2016/06

    DOI: 10.1186/s12865-016-0160-1  

    ISSN: 1471-2172

  11. Immunobiotic Bifidobacteria Strains Modulate Rotavirus Immune Response in Porcine Intestinal Epitheliocytes via Pattern Recognition Receptor Signaling Peer-reviewed

    Takamasa Ishizuka, Paulraj Kanmani, Hisakazu Kobayashi, Ayako Miyazaki, Junichi Soma, Yoshihito Suda, Hisashi Aso, Tomonori Nochi, Noriyuki Iwabuchi, Jin-zhong Xiao, Tadao Saito, Julio Villena, Haruki Kitazawa

    PLOS ONE 11 (3) e0152416 2016/03

    DOI: 10.1371/journal.pone.0152416  

    ISSN: 1932-6203

  12. Lactobacillus delbrueckii TUA4408L and its extracellular polysaccharides attenuate enterotoxigenic Escherichia coli-induced inflammatory response in porcine intestinal epitheliocytes via Toll-like receptor-2 and 4. International-journal Peer-reviewed

    Satoshi Wachi, Paulraj Kanmani, Yohsuke Tomosada, Hisakazu Kobayashi, Toshihito Yuri, Shintaro Egusa, Tomoyuki Shimazu, Yoshihito Suda, Hisashi Aso, Makoto Sugawara, Tadao Saito, Takashi Mishima, Julio Villena, Haruki Kitazawa

    Molecular nutrition & food research 58 (10) 2080-93 2014/10

    DOI: 10.1002/mnfr.201400218  

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    SCOPE: Immunobiotics are known to modulate intestinal immune responses by regulating Toll-like receptor (TLR) signaling pathways, which are responsible for the induction of cytokines and chemokines in response to microbial-associated molecular patterns. However, little is known about the immunomodulatory activity of compounds or molecules from immunobiotics. METHODS AND RESULTS: We evaluated whether Lactobacillus delbrueckii subsp. delbrueckii TUA4408L (Ld) or its extracellular polysaccharide (EPS): acidic EPS (APS) and neutral EPS (NPS), modulated the response of porcine intestinal epitheliocyte (PIE) cells against Enterotoxigenic Escherichia coli (ETEC) 987P. The roles of TLR2, TLR4, and TLR negative regulators in the immunoregulatory effects were also studied. ETEC-induced inflammatory cytokines were downregulated when PIE cells were prestimulated with both Ld or EPSs. Ld, APS, and NPS inhibited ETEC mediated mitogen-activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) activation by upregulating TLR negative regulators. The capability of Ld to suppress inflammatory cytokines was diminished when PIE cells were blocked with anti-TLR2 antibody, while APS failed to suppress inflammatory cytokines when cells were treated with anti-TLR4 antibody. Induction of Ca²⁺ fluxes in TLR knockdown cells confirmed that TLR2 plays a principal role in the immunomodulatory action of Ld, while the activity of APS is mediated by TLR4. In addition, NPS activity depends on both TLR4 and TLR2. CONCLUSION: Ld and its EPS have the potential to be used for the development of anti-inflammatory functional foods to prevent intestinal diseases in both humans and animals.

  13. Development of prediction equations for immunoglobulin A, immunoglobulin G, and immunoglobulin M concentrations in mature milk from Holstein cows using milk infrared spectral data Peer-reviewed

    Yuri Satake, Teppei Katsura, Tao Zhuang, Megumi Urakawa, Yugo Mineshima, Toshimi Baba, Gaku Yoshida, Haruki Kitazawa, Hitoshi Shirakawa, Takehiko Nakamura, Tomonori Nochi, Yoshifumi Sakai, Masahiro Satoh, Satoshi Haga, Hisashi Aso, Yoshinobu Uemoto

    108 7354-7369 2025/07

    DOI: 10.3168/jds.2024-25991  

  14. The Originally Established PBE Cell Line as a Reliable In Vitro Model for Investigating SIV Infection and Immunity

    Xi-Chen Bai, Kohtaro Fukuyama, Leonardo Albarracin, Yoshiya Imamura, Fu Namai, Weichen Gong, Wakako Ikeda-Ohtsubo, Keita Nishiyama, Julio Villena, Haruki Kitazawa

    26:5764 1-20 2025/06/16

    DOI: 10.3390/ijms26125764  

  15. Milk sialyl-oligosaccharides mediate the early colonization of gut commensal microbes in piglets International-journal International-coauthorship Peer-reviewed

    Ryoga Hashimoto, Keita Nishiyama, Fu Namai, Kasumi Suzuki, Taiga Sakuma, Itsuko Fukuda, Yuta Sugiyama, Kenji Okano, Takafumi Shanoh, Eita Toyoshi, Ryusuke Ohgi, Sudeb Saha, Sae Tsuchida, Eri Nishiyama, Takao Mukai, Mutsumi Furukawa, Tomonori Nochi, Julio Villena, Wakako Ikeda-Ohtsubo, Gou Yoshioka, Eri Nakazaki, Yoshihito Suda, Haruki Kitazawa

    Microbiome 13:135 1-17 2025/05/24

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1186/s40168-025-02129-3  

    eISSN: 2049-2618

  16. Enhancing Resistance to Enterococcus faecalis: Immunobiotic Lactiplantibacillus plantarum Strains as a Strategy for Malnourished Hosts International-journal International-coauthorship Peer-reviewed

    María Daniela Vera, Lorena Paola Arce, Melisa Florencia Müller, Fernanda Raya Tonetti, Ramiro Ortiz Moyano, Héctor Luis Blanco, Haruki Kitazawa*, María Guadalupe Vizoso-Pinto*, Julio Villena*

    Nutrients 17:1770 1-17 2025/05/23

    Publisher: MDPI AG

    DOI: 10.3390/nu17111770  

    eISSN: 2072-6643

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    Background: Enterococcus faecalis causes serious opportunistic infections in patients with weakened immune defenses, such as individuals suffering from malnutrition. We investigated the effects of Lactiplantibacillus plantarum MPL16 and CRL1506 on the resistance to E. faecalis infection in mice immunosuppressed by protein malnutrition. Methods: Male BALB/c mice received a protein-deficient diet for 21 days, followed by a 7-day renourishment period with a balanced conventional diet (BCD) with or without lactobacilli supplementation. Malnourished controls (MN) and renourished mice were treated with gentamicin for 3 days and then challenged orally with E. faecalis 102. Infection levels in the gut, liver, spleen, and blood, intestinal tissue damage, and the cytokine response were evaluated 2 days after the challenge. Results: Malnourished mice had an impaired ability to produce pro-inflammatory cytokines (TNF, IFN-γ, IL-1β, IL-6, IL-17, and KC) and the regulatory IL-10 in response to the infection compared to mice in the BCD group. The imbalance of inflammatory and regulatory mediators in MN mice favors colonization and invasion by E. faecalis and increases tissue damage, making the disease more severe than in animals renourished with BCD. Supplementing the BCD with L. plantarum strains significantly enhanced resistance to E. faecalis 102 infections, as evidenced by a marked reduction in bacterial loads and intestinal damage. The effect of lactobacilli was associated with enhanced levels of IFN-γ, IL-6, and IL-10 and reduced TNF, IL-1β, IL-17, and KC. Conclusions: Given their efficacy in enhancing host resistance, these Lactiplantibacillus strains hold great promise as a preventive strategy against E. faecalis infections in susceptible individuals.

  17. Role of the choline-binding protein A in the ability of porcine Ligilactobacillus salivarius FFIG58 to modulate TLR3-mediated intestinal antiviral immunity International-journal International-coauthorship Peer-reviewed

    Yoshiya Imamura†, Hikari Yamamuro†, Mariano Elean†, Lorena Paola Arce, Ryutaro Funabash, Fernanda Raya Tonetti, Kohtaro Fukuyama, Mikado Tomokiyo, Fu Namai, Sudeb Saha, Wakako Ikeda-Ohtsubo, Keita Nishiyama, Julio Villena*, Haruki Kitazawa* (†: Equal contribution)

    Food Frontiers 2025/04

    Publisher: Wiley

  18. Modulation of Macrophages TLR4-Mediated Transcriptional Response by Lacticaseibacillus rhamnosus CRL1505 and Lactiplantibacillus plantarum CRL1506 International-journal International-coauthorship Peer-reviewed

    Masahiko Suzuki, Ayelen Baillo, Leonardo Albarracin, Mariano Elean, Rodrigo Serda, Yoshihito Suda, Fu Namai, Keita Nishiyama, Haruki Kitazawa, Julio Villena

    International Journal of Molecular Sciences 26:2688 1-26 2025/03/17

    Publisher: MDPI

    DOI: 10.3390/ijms26062688  

  19. Regulation of Gut Starvation Responses Through Drosophila NP3253 Neurons Peer-reviewed

    30:e70005 1-14 2025/02/04

  20. Elevated levels of cyclophilin A secreted in milk during bovine mastitis Peer-reviewed

    Satoru Takanashi, Kozue Yoshimura, Yuma Endo, Megumi Urakawa, Hidetoshi Sato, Tao Zhuang, Tomohito Hayashi, Yoshio Kiku, Yuya Nagasawa, Haruki Kitazawa, Michael T. Rose, Yoshinobu Uemoto, Kouichi Watanabe, Tomonori Nochi, Hisashi Aso

    Journal of Dairy Science 108 (1) 835-844 2025/01

    Publisher: American Dairy Science Association

    DOI: 10.3168/jds.2024-24715  

    ISSN: 0022-0302

  21. An Experimental Chimeric Hepatitis E Virus Vaccine Elicits Both local and Systemic Immune Responses International-journal International-coauthorship

    Melisa F. Müller, Jacinto Sacur, Julia Matias Brancher, Maria D. Vera, Lorena P. Arce, María Fernanda Raya Tonetti, Haruki Kitazawa*, Julio Villena*, Maria G. Vizoso Pinto*

    Front. Microbiol. 15:1512018 1-11 2024/12/24

    Publisher: Frontiers

    DOI: 10.3389/fmicb.2024.1512018  

  22. Orally Administered Lactobacilli Strains Modulate Alveolar Macrophages and Improve Protection Against Respiratory Superinfection International-journal International-coauthorship Peer-reviewed

    Leonardo Albarracin, Stefania Dentice Maidana, Kohtaro Fukuyama, Mariano Elean, Julio Nicolás, Argañaraz Aybar, Yoshihito Suda, Keita Nishiyama, Haruki Kitazawa*, Julio Villena*

    Biomolecules 14:1600 1-17 2024/12/14

    Publisher: MDPI

    DOI: 10.3390/biom14121600  

  23. Modulation of the Gut–Lung Axis by Water Kefir and Kefiran and Their Impact on Toll-like Receptor 3-Mediated Respiratory Immunity International-coauthorship Peer-reviewed

    Stefania Dentice Maidana, Julio Nicolás Argañaraz Aybar, Leonardo Albarracin, Yoshiya Imamura, Luciano Arellano-Arriagada, Fu Namai, Yoshihito Suda, Keita Nishiyama, Julio Villena, Haruki Kitazawa

    Biomolecules 14:1457 1-16 2024/11/17

    Publisher:

    DOI: 10.3390/biom14111457  

  24. Effect of Lactiplantibacillus plantarum cell free culture on bacterial pathogens isolated from cystic fibrosis patients: in vitro and in vivo studies International-coauthorship Peer-reviewed

    Carla L. Abán, Silvia Orosco, Julio N. Argañaraz Aybar, Leonardo Albarracin, Analía Venecia, Liliana Perret, Sonia Ortiz Mayor, Keita Nishiyama, Juan C. Valdéz, Haruki Kitazawa*, Julio Villena*, Nadia Gobbato*

    Front. Cell. Infect. Microbiol. 15:1440090 1-19 2024/09

    Publisher: Frontiers

    DOI: 10.3389/fmicb.2024.1440090  

  25. Identification of Nonsynonymous SNPs in Immune-Related Genes Associated with Pneumonia Severity in Pigs Peer-reviewed

    Hiroki Shinkai, Kasumi Suzuki, Tomohito Itoh, Gou Yoshioka, Takato Takenouchi, Haruki Kitazawa, Hirohide Uenishi

    Genes 15(8):1103 1-11 2024/08/21

    Publisher: MDPI AG

    DOI: 10.3390/genes15081103  

    eISSN: 2073-4425

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    We previously showed that several polymorphisms in genes encoding pattern recognition receptors that cause amino acid substitutions alter pathogen recognition ability and disease susceptibility in pigs. In this study, we expanded our analysis to a wide range of immune-related genes and investigated polymorphism distribution and its influence on pneumonia in multiple commercial pig populations. Among the polymorphisms in 42 genes causing 634 amino acid substitutions extracted from the swine genome database, 80 in 24 genes were found to have a minor allele frequency of at least 10% in Japanese breeding stock pigs via targeted resequencing. Of these, 62 single nucleotide polymorphisms (SNPs) in 23 genes were successfully genotyped in 862 pigs belonging to four populations with data on pneumonia severity. Association analysis using a generalized linear mixed model revealed that 12 SNPs in nine genes were associated with pneumonia severity. In particular, SNPs in the cellular receptor for immunoglobulin G FCGR2B and the intracellular nucleic acid sensors IFI16 and LRRFIP1 were found to be associated with mycoplasmal pneumonia of swine or porcine pleuropneumonia in multiple populations and may therefore have wide applications in the improvement of disease resistance in pigs. Functional analyses at the cellular and animal levels are required to clarify the mechanisms underlying the effects of these SNPs on disease susceptibility.

  26. Exploring strain-level diversity in the gut microbiome through mucin particle adhesion. International-journal

    Keita Nishiyama, Ryuta Murakami, Masaki Nakahata, Binghui Zhou, Nanami Hashikura, Hiroki Kaneko, Fu Namai, Wakako Ikeda-Ohtsubo, Jin-Zhong Xiao, Haruki Kitazawa, Toshitaka Odamaki

    Applied and Environmental Microbiology e0123524 2024/08/12

    DOI: 10.1128/aem.01235-24  

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    UNLABELLED: Mucin glycoproteins are a significant source of carbon for the gut bacteria. Various gut microbial species possess diverse hydrolytic enzymes and catabolic pathways for breaking down mucin glycans, resulting in competition for the limited nutrients within the gut environment. Adherence to mucin glycans represents a crucial strategy used by gut microbes to access nutrient reservoirs. Understanding these properties is pivotal for comprehending the survival mechanisms of bacteria in the gastrointestinal tract. However, characterization of individual strains within the vast array of coexisting bacteria in the microbiome is challenging. To investigate this, we developed mucin-immobilized particles by immobilizing porcine gastric mucin (PGM) onto glass beads chemically modified with boronic acid. These PGM-immobilized particles were then anaerobically cultured with human fecal microbiota, and the bacteria adhering to PGM were isolated. Interestingly, the microbiome composition remained largely unchanged irrespective of PGM immobilization. Nonetheless, bacteria isolated from PGM-immobilized glass particles exhibited notably higher N-acetylgalactosaminidase activity compared to the control beads. Furthermore, Bacteroides strains isolated from PGM-immobilized glass particles displayed enhanced adhesive and metabolic properties to PGM. These findings underscore the utility of PGM particles in enriching and isolating specific microbes. Moreover, they highlight substantial differences in microbial properties at the strain level. We anticipate that PGM-immobilized particles will advance culture-based microbiome research, emphasizing the significance of strain-level characterization. IMPORTANCE: Metabolism of mucin glycans by gut bacteria represents a crucial strategy for accessing nutrient reservoirs. The efficacy of mucin glycan utilization among gut bacteria hinges on the metabolic capabilities of individual strains, necessitating meticulous strain-level characterization. In this investigation, we used glass beads chemically immobilized with mucins to selectively enrich bacteria from fecal fermentation cultures, based on their superior adhesion to and metabolism of mucin glycoproteins. These findings lend support to the hypothesis that the physical interactions between bacteria and mucin glycoprotein components directly correlate with their capacity to utilize mucins as nutrient sources. Furthermore, our study implies that physical proximity may significantly influence bacterial nutrient acquisition within the ecosystem, facilitating gut bacteria's access to carbohydrate components.

  27. Role of immunomodulatory probiotics in alleviating bacterial diarrhea in piglets: a systematic review International-journal International-coauthorship Peer-reviewed

    Sudeb Saha, Fu Namai, Keita Nishiyama, Julio Villena, Haruki Kitazawa

    Journal of Animal Science and Biotechnology 15:112 1-25 2024/08/12

    Publisher: Springer Nature

    DOI: 10.1186/s40104-024-01070-z  

  28. Modulation of the Toll-like Receptor 3-Mediated Intestinal Immune Response by Water Kefir International-journal International-coauthorship Peer-reviewed

    Stefania Dentice Maidana, Francisco Ramiro Ortiz Moyano, Mariano Elean, Yoshiya Imamura, Leonardo Albarracín, Fu Namai, Yoshihito Suda, Keita Nishiyama, Julio Villena, Haruki Kitazawa

    Microbiology Research 15 1239-1250 2024/07/20

    Publisher: MDPI

    DOI: 10.3390/microbiolres15030083  

  29. Broad specificity of monoclonal IgA (TEPC15-IgA) for enteric bacteria via PC-mediated interaction Peer-reviewed

    86 (7) 801-808 2024/07

    DOI: 10.1292/jvms.23-0441  

  30. Antagonistic Effects of Corynebacterium pseudodiphtheriticum 090104 on Respiratory Pathogens International-journal International-coauthorship Peer-reviewed

    Ramiro Ortiz Moyano, Stefania Dentice Maidana, Yoshiya Imamura, Mariano Elean, Fu Namai, Yoshihito Suda, Keita Nishiyama, Vyacheslav Melnikov, Haruki Kitazawa, Julio Villena

    Microorganisms 12:1295 1-17 2024/06/26

    Publisher: MDPI

    DOI: 10.3390/microorganisms12071295  

  31. Comprehensive Characterization of γ‐Aminobutyric Acid (GABA) Production by Levilactobacillus brevis CRL 2013: Insights from Physiology, Genomics, and Proteomics International-coauthorship Peer-reviewed

    Front. Microbiol. 15:1408624 1-13 2024/06/19

    DOI: 10.3389/fmicb.2024.1408624  

  32. The Mucus-Binding Factor Mediates Lacticaseibacillus rhamnosus CRL1505 Adhesion but Not Immunomodulation in the Respiratory Tract International-journal International-coauthorship

    Binghui Zhou, Mariano Elean, Lorena Arce, Kohtaro Fukuyama, Kae Tomotsune, Stefania Dentice Maidana, Sudeb Saha, Fu Namai, Keita Nishiyama, Maria Guadalupe Vizoso Pinto, Julio Villena, Haruki Kitazawa

    Microorganisms 12:1209 1-12 2024/06/16

    Publisher: MDPI

    DOI: 10.3390/microorganisms12061209  

  33. Development of an intestinal epithelial cell line and organoids derived from the same swine and characterization of their antiviral responses International-coauthorship Peer-reviewed

    43 (4) 342-351 2024/05/28

    Publisher:

  34. Insights into the Anti-Adipogenic and Anti-Inflammatory Potentialities of Probiotics against Obesity International-journal International-coauthorship Peer-reviewed

    A. K. M, Humayun Kober†, Sudeb Saha†, Mutamed M Ayyash, Fu Namai, Keita Nishiyama, Kazutoyo Yoda, Julio Villena, Haruki Kitazawa, Equal contribution

    Nutrients 16:1373 1-24 2024/04/30

    Publisher: MDPI

    DOI: 10.3390/nu16091373  

  35. Bacterium-like Particles from Corynebacterium pseudodiphtheriticum as Mucosal Adjuvant for the Development of Pneumococcal Vaccines International-journal

    Francisco Ramiro, Ortiz Moyano, Fernanda Raya-Tonetti, Mariano Elean, Yoshiya Imamura, Kohtaro Fukuyama, Yoshihito Suda, Vyacheslav Melnikov, Alexander Suvorov, María Guadalupe Vizoso-Pinto, Haruki Kitazawa, Julio Villena

    Vaccines 12:412 1-14 2024/04/12

    Publisher: MDPI

    DOI: 10.3390/vaccines12040412  

  36. Establishment of porcine fecal-derived ex vivo microbial communities to evaluate the impact of livestock feed on gut microbiome Peer-reviewed

    Yuji TSUJIKAWA, Keita NISHIYAMA, Fu NAMAI, Yoshiya IMAMURA, Taiga SAKUMA, Sudeb SAHA, Masahiko SUZUKI, Mitsuki SAKURAI, Ryo IWATA, Kengo MATSUO, Hironori TAKAMORI, Yoshihito SUDA, Binghui ZHOU, Itsuko FUKUDA, Julio VILLENA, Iwao SAKANE, Ro OSAWA, Haruki KITAZAWA

    Bioscience of Microbiota, Food and Health 43 (2) 100-109 2024/04/01

    Publisher: BMFH Press

    DOI: 10.12938/bmfh.2023-085  

    eISSN: 2186-3342

  37. Genetic aspects of immunoglobulins and cyclophilin A in milk as potential indicators of mastitis resistance in Holstein cows

    Yoshinobu Uemoto, Teppei Katsura, Yuma Endo, Koutaro Tanaka, Tao Zhuang, Megumi Urakawa, Toshimi Baba, Gaku Yoshida, Haifei Wang, Haruki Kitazawa, Hitoshi Shirakawa, Takehiko Nakamura, Tomonori Nochi, Hisashi Aso

    Journal of Dairy Science 107 (3) 1577-1591 2024/03

    Publisher: American Dairy Science Association

    DOI: 10.3168/jds.2022-23075  

    ISSN: 0022-0302

  38. A Comparison between Crossbred (Holstein × Local Cattle) and Bangladeshi Local Cattle for Body and Milk Quality Traits International-journal International-coauthorship Peer-reviewed

    Sudeb Saha, Md. Nazmul Hasan, Md. Nazim Uddin, B. M. Masiur Rahman, Mohammad Mehedi Hasan Khan, Syed Sayeem Uddin Ahmed, Haruki Kitazawa

    Dairy 5 153-160 2024/02/02

    Publisher:

    DOI: 10.3390/dairy5010012  

  39. In vitro evaluation of the immunomodulatory and wakame assimilation properties of Lactiplantibacillus plantarum strains from swine milk International-journal International-coauthorship Peer-reviewed

    Ryusuke Ohgi†, Sudeb Saha†, Binghui Zhou, Taiga Sakuma, Mitsuki Sakurai, Yuhka Nakano, Fu Namai, Wakako Ikeda-Ohtsubo, Yoshihito Suda, Keita Nishiyama, Julio Villena*, Haruki Kitazawa* (†: Equal contribution)

    Front. Microbiol. 15:1324999 1-10 2024/01

    Publisher: Frontiers

  40. Lacticaseibacillus rhamnosus CRL1505 peptidoglycan modu-2 lates the inflammation-coagulation response triggered by 3 poly(I:C) in the respiratory tract International-journal International-coauthorship Peer-reviewed

    Hortensia Zelaya, Luciano Arellano-Arriagada, Kohtaro Fukuyama, Kaho Matsumoto, Gabriela Marranzino, Fu Namai, Susana Salva, Susana Alvarez, Graciela Agüero, Haruki Kitazawa*, Julio Villena*

    Int. J. Mol. Sci. 24:16907 1-18 2023/11/27

    Publisher: MDPI

  41. Immunobiotic Ligilactobacillus salivarius FFIG58 Confers Long-Term Protection against Streptococcus pneumoniae International-journal International-coauthorship Peer-reviewed

    Mariano Elean, Fernanda Raya-Tonetti, Kohtaro Fukuyama, Luciano Arellano-Arriagada, Fu Namai, Yoshihito Suda, Nadia Gobbato, Keita Nishiyama, Julio Villena, Haruki Kitazawa, Equal contribution

    Int. J. Mol. Sci. 24(21):15773 1-16 2023/10/30

    Publisher: MDPI

    DOI: 10.3390/ijms242115773  

  42. Neural control of redox response and microbiota-triggered inflammation in Drosophila gut International-journal Peer-reviewed

    Naoyuki Fuse*, Haruka Hashiba, Kentaro Ishibashi, Takuro Suzuki, Quang-Dat Nguyen, Kiho Fujii, Wakako Ikeda-Ohtsubo, Haruki Kitazawa, Hiromu Tanimoto, Shoichiro Kurata*

    Front. Immunol. 14:1268611 1-13 2023/10/26

    Publisher: Frontiers Media SA

    DOI: 10.3389/fimmu.2023.1268611  

    eISSN: 1664-3224

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    Background The neural system plays a critical role in controlling gut immunity, and the gut microbiota contributes to this process. However, the roles and mechanisms of gut-brain-microbiota interactions remain unclear. To address this issue, we employed Drosophila as a model organism. We have previously shown that NP3253 neurons, which are connected to the brain and gut, are essential for resistance to oral bacterial infections. Here, we aimed to investigate the role of NP3253 neurons in the regulation of gut immunity. Methods We performed RNA-seq analysis of the adult Drosophila gut after genetically inactivating the NP3253 neurons. Flies were reared under oral bacterial infection and normal feeding conditions. In addition, we prepared samples under germ-free conditions to evaluate the role of the microbiota in gut gene expression. We knocked down the genes regulated by NP3253 neurons and examined their susceptibility to oral bacterial infections. Results We found that immune-related gene expression was upregulated in NP3253 neuron-inactivated flies compared to the control. However, this upregulation was abolished in axenic flies, suggesting that the immune response was abnormally activated by the microbiota in NP3253 neuron-inactivated flies. In addition, redox-related gene expression was downregulated in NP3253 neuron-inactivated flies, and this downregulation was also observed in axenic flies. Certain redox-related genes were required for resistance to oral bacterial infections, suggesting that NP3253 neurons regulate the redox responses for gut immunity in a microbiota-independent manner. Conclusion These results show that NP3253 neurons regulate the appropriate gene expression patterns in the gut and contribute to maintain homeostasis during oral infections.

  43. In Silico Comparative Genomic Analysis Revealed a Highly Conserved Proteolytic System in Lactobacillus delbrueckii International-journal International-coauthorship Peer-reviewed

    Mariano Elean, Leonardo Albarracin, Julio Villena, Haruki Kitazawa, Lucila Saavedra, Elvira M. Hebert

    International Journal of Molecular Sciences 24(14):11309 1-16 2023/07/11

    Publisher: MDPI AG

    DOI: 10.3390/ijms241411309  

    eISSN: 1422-0067

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    Lactobacillus delbrueckii, the type species of the genus Lactobacillus, is widely recognized as the primary starter culture in the dairy industry due to its proteolytic activity, which enables it to growth in milk. In this study, a comprehensive genomic analysis of the proteolytic system was conducted on L. delbrueckii strains. The analysis included 27 genomes of L. delbrueckii, with a specific focus on the key enzyme involved in this system, the cell envelope-associated proteinase (CEP). The amino acid sequences, as well as the protein-structure prediction of the CEPs, were compared. Additionally, syntenic analysis of the genomic locus related to the CEPs revealed high conservation in L. delbrueckii subsp. bulgaricus strains, while L. delbrueckii subsp. lactis strains exhibited greater variability, including the presence of insertion sequences, deletions, and rearrangements. Finally, the CEP promoter region and putative regulatory elements responsible for controlling the expression of the proteolytic system in lactobacilli were investigated. Our genomic analysis and in silico characterization of the CEPs contribute to our understanding of proteolytic activity and the potential applications of these lactic acid bacteria in the dairy industry. Further research in this area will expand our knowledge and potential practical uses of these findings.

  44. Establishment of a porcine bronchial epithelial cell line and its application to study innate immunity in the respiratory epithelium International-journal Peer-reviewed

    Kohtaro Fukuyama, Tao Zhuang, Eita Toyoshi, Fernanda Raya Tonetti, Sudeb Saha, Binghui Zhou, Wakako Ikeda-Ohtsubo, Keita Nishiyama, Hisashi Aso, Julio Villena, Haruki Kitazawa

    Front. Immunol. 14: 1117102 1-14 2023/07/03

    DOI: 10.3389/fimmu.2023.1117102  

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    In vitro culture models that precisely mirror the porcine respiratory epithelium are needed to gain insight into how pathogens and host interact. In this study, a new porcine bronchial epithelial cell line, designated as PBE cells, was established from the respiratory tract of a neonatal pig. PBE cells assumed a cobblestone-epithelial like morphology with close contacts between the cells when they reached confluence. The PBE cell line was characterized in terms of its expression of pattern recognition receptors (PRRs) and its ability to respond to the activation of the Toll-like receptor 3 (TLR3) and TLR4 signaling pathways, which are key PRRs involved in the defense of the respiratory epithelium against pathogens. PBE cells stimulated with poly(I:C) were able to up-regulate the expression of IFN-β, IFN-λ1 (IL-29), IFN-λ3 (IL-28B), the antiviral factors Mx1, OAS1, and PKR, as well as the viral PRRs RIG-1 and MDA5. The expression kinetics studies of immune factors in PBE cells allow us to speculate that this cell line can be a useful in vitro tool to investigate treatments that help to potentiate antiviral immunity in the respiratory epithelium of the porcine host. In addition, poly(I:C) and LPS treatments increased the expression of the inflammatory cytokines TNF-α, IL-6, IL-8, and MCP-1/CCL2 and differentially modulated the expression of negative regulators of the TLR signaling pathways. Then, PBE cells may also allow the evaluation of treatments that can regulate TLR3- and TLR4-mediated inflammatory injury in the porcine airway, thereby protecting the host against harmful overresponses.

  45. Recent advances in the use of probiotics to improve meat qual-ity of small ruminants: A review International-coauthorship Peer-reviewed

    Sudeb Saha*, Kohtaro Fukuyama, Marina Debnath, Fu Namai, Keita Nishiyama, Haruki Kitazawa*

    Microorganisms 11:1652 1-14 2023/06/25

    Publisher: MDPI

  46. Partial characterization and immunomodulatory effects of ex-opolysaccharides from Streptococcus thermophilus SBC8781 during soymilk and cow milk fermentation International-journal International-coauthorship Peer-reviewed

    Hajime Nakata†, Yoshiya Imamura†, Sudeb Saha, René Emanuel Lobo, Shugo Kitahara, Shota Araki, Mikado Tomokiyo, Fu Namai, Masanori Hiramitsu, Takashi Inoue, Keita Nishiyama, Julio Villena*, Haruki Kitazawa* (†: Equal contribution)

    Foods 12:2374 1-15 2023/06

    Publisher: MDPI

  47. Hypermucoviscous Carbapenem-Resistant Klebsiella pneumoniae ST25 Infect Human Intestinal Epithelial Cells and Induce Moderate Inflammation International-journal International-coauthorship Peer-reviewed

    Stefania Dentice Maidana, Mariano Elean, Kohtaro Fukuyama, Yoshiya Imamura, Leonardo Albarracín, Sudeb Saha, Yoshihito Suda, Shoichiro Kurata, María Ángela Jure, Haruki Kitazawa, Julio Villena

    Int. J. Mol. Sci. 24:8804 1-16 2023/05/15

    Publisher: MDPI

    DOI: 10.3390/ijms24108804  

  48. Oral Administration of Lacticaseibacillus rhamnosus CRL1505 Modulates Lung Innate Immune Response against Klebsiella pneumoniae ST25. International-journal International-coauthorship Peer-reviewed

    Stefania Dentice Maidana†, Yoshiya Imamura†, Mariano Elean, Leonardo Albarracín, Keita Nishiyama, Yoshihito Suda, Shoichiro Kurata, María Ángela Jure, Haruki Kitazawa, Julio Villena, Equal contribution

    Microorganisms 11(5):1148 1-13 2023/04/28

    Publisher:

    DOI: 10.3390/microorganisms11051148  

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    Orally administered Lacticaseibacillus rhamnosus CRL1505 enhances respiratory immunity, providing protection against respiratory viruses and Streptococcus pneumoniae. However, the capacity of the CRL1505 strain to improve respiratory immunity against Gram-negative bacterial infections has not been evaluated before. The aim of this work was to evaluate whether the Lcb. rhamnosus CRL1505 was able to beneficially regulate the respiratory innate immune response and enhance the resistance to hypermucoviscous KPC-2-producing Klebsiella pneumoniae of the sequence type 25 (ST25). BALB/c mice were treated with the CRL1505 strain via the oral route and then nasally challenged with K. pneumoniae ST25 strains LABACER 01 or LABACER 27. Bacterial cell counts, lung injuries and the respiratory and systemic innate immune responses were evaluated after the bacterial infection. The results showed that K. pneumoniae ST25 strains increased the levels of TNF-α, IL-1β, IL-6, IFN-γ, IL-17, KC and MPC-1 in the respiratory tract and blood, as well as the numbers of BAL neutrophils and macrophages. Mice treated with Lcb. rhamnosus CRL1505 had significantly lower K. pneumoniae counts in their lungs, as well as reduced levels of inflammatory cells, cytokines and chemokines in the respiratory tract and blood when compared to infected controls. Furthermore, higher levels of the regulatory cytokines IL-10 and IL-27 were found in the respiratory tract and blood of CRL1505-treated mice than controls. These results suggest that the ability of Lcb. rhamnosus CRL1505 to help with the control of detrimental inflammation in lungs during K. pneumoniae infection would be a key feature to improve the resistance to this pathogen. Although further mechanistic studies are necessary, Lcb. rhamnosus CRL1505 can be proposed as a candidate to improve patients' protection against hypermucoviscous KPC-2-producing strains belonging to the ST25, which is endemic in the hospitals of our region.

  49. Genome-wide detection of changes in allelic frequency in Landrace pigs selected for resistance to mycoplasma pneumonia of swine Peer-reviewed

    94:e13827 1-10 2023/03/31

    Publisher:

  50. The Respiratory Commensal Bacterium Corynebacterium pseudodiphtheriticum as a Mucosal Adjuvant for Nasal Vaccines Peer-reviewed

    Ramiro Ortiz Moyano, Fernanda Raya Tonetti, Kohtaro Fukuyama, Mariano Elean, Mikado Tomokiyo, Yoshihito Suda, Vyacheslav Melnikov, Haruki Kitazawa, Julio Villena

    Vaccines 11 (3) 611-611 2023/03/08

    Publisher: MDPI AG

    DOI: 10.3390/vaccines11030611  

    eISSN: 2076-393X

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    Previously, we demonstrated that nasally administered Corynebacterium pseudodiphtheriticum 090104 (Cp) or its bacterium-like particles (BLPs) increase the resistance of mice against bacterial and viral respiratory pathogens by modulating the innate immunity. In this work, we evaluated the ability of Cp and BLPs to stimulate alveolar macrophages, and to enhance the humoral immune response induced by a commercial vaccine against Streptococcus pneumoniae. In the first set of experiments, Cp or the BLPs were incubated with primary cultures of murine alveolar macrophages and the phagocytic activity, and the production of cytokines was evaluated. The results revealed that Cp and BLPs were efficiently phagocyted by respiratory macrophages and that both treatments triggered the production of TNF-α, IFN-γ, IL-6, and IL-1β. In the second set of experiments, 3-week-old Swiss mice were intranasally immunized at days 0, 14, and 28 with the pneumococcal vaccine Prevenar®13 (PCV), Cp + PCV, or BLPs + PCV. On day 33, samples of bronco-alveolar lavages (BAL) and serum were collected for the study of specific antibodies. In addition, immunized mice were challenged with S. pneumoniae serotypes 6B or 19F on day 33 and sacrificed on day 35 (day 2 post-infection) to evaluate the resistance to the infection. Both Cp + PCV and BLPs + PCV groups had higher specific serum IgG and BAL IgA antibodies than the PCV control mice. In addition, the mice that were immunized with Cp + PCV or BLPs + PCV had lower lung and blood pneumococcal cell counts as well as lower levels of BAL albumin and LDH, indicating a reduced lung damage compared to the control mice. Improved levels of anti-pneumococcal antibodies were also detected in the serum and BAL samples after the challenges with the pathogens. The results demonstrated that C. pseudodiphtheriticum 090104 and its bacterium-like particles are capable of stimulating the respiratory innate immune system serving as adjuvants to potentiate the adaptive humoral immune response. Our study is a step forward in the positioning of this respiratory commensal bacterium as a promising mucosal adjuvant for vaccine formulations aimed at combating respiratory infectious diseases.

  51. Sharing of moonlighting proteins mediates the symbiotic relationship among intestinal commensals International-journal Peer-reviewed

    89 (3) e02190-22 2023/03

    Publisher:

  52. 豚のオミクス解析と疾病に関する最近の話題と研究 Peer-reviewed

    宗田吉広, 関山恭代, 須田智子, 宮崎綾子, 新開浩樹, 廣瀬健右, 上西博英, 北澤春樹

    豚病会報 81 30-38 2023/02

    Publisher: 日本豚病研究会

  53. Postimmunobiotics increase resistance to primary respiratory syncytial virus infection and secondary pneumococcal pneumonia International-journal International-coauthorship Peer-reviewed

    3 209-221 2023/01

  54. Lactiplantibacillus plantarum Strains Modulate Intestinal Innate Immune Response and Increase Resistance to Enterotoxigenic Escherichia coli Infection International-journal International-coauthorship Peer-reviewed

    Ayelen Baillo†, Julio Villena†, Leonardo Albarracín, Mikado Tomokiyo, Mariano Elean, Kohtaro Fukuyama, Sandra Quilodrán-Vega, Silvina Fadda, Haruki Kitazawa, Equal contribution

    Microorganisms 11:63 1-17 2022/12/25

    Publisher: MDPI

    DOI: 10.3390/microorganisms11010063  

  55. The mucus binding factor is not necessary for Lacticaseibacillus rhamnosus CRL1505 to exert its immunomodulatory activities in local and distal mucosal sites International-journal International-coauthorship Peer-reviewed

    Kae Tomotsune†, Fernanda Raya Tonetti†, Hiroya Mizuno, Mariano Elean, Kohtaro Fukuyama, Binghui Zhou, Wakako Ikeda-Ohtsubo, Keita Nishiyama, Akihiro Yamamura, Hideaki Karasawa, Shinobu Ohnuma, Akira Horii, Tadao Saito, Haruki Kitazawa*, Julio Villena* (†:Equal contribution)

    Int. J. Mol. Sci. 23:14357 1-17 2022/11/18

  56. Polymorphisms in Pattern Recognition Receptor Genes Are Associated with Respiratory Disease Severity in Pig Farms International-journal Peer-reviewed

    Kasumi Suzuki, Hiroki Shinkai, Gou Yoshioka, Toshimi Matsumoto, Takato Takenouchi, Junji Tanaka, Masanori Shimizu, Haruki Kitazawa, Hirohide Uenishi

    Animals 12:3163 1-14 2022/11/16

    Publisher: MDPI

    DOI: 10.3390/ani12223163  

  57. Immunomodulatory Effects of Probiotics: A Novel Preventive Approach for the Control of Bovine Mastitis International-coauthorship Peer-reviewed

    A. K. M. Humayun Kober†, Sudeb Saha†, Md. Aminul Islam†, Muhammad Shahid Riaz Rajoka†, Kohtaro Fukuyama, Hisashi Aso, Julio Villena*, Haruki Kitazawa* (†:Equal contribution)

    Microorganisms 10:2255 1-17 2022/11/14

    Publisher: MDPI

    DOI: 10.3390/microorganisms10112255  

  58. The Ability of Postimmunobiotics from L. rhamnosus CRL1505 to Protect against Respiratory Syncytial Virus and Pneumococcal Super-Infection Is a Strain-Dependent Characteristic International-journal International-coauthorship Peer-reviewed

    Fernanda Raya-Tonetti, Patricia Clua, Kohtaro Fukuyama, Guillermo Marcial, Jacinto Sacur, Gabriela Marranzino, Mikado Tomokiyo, Guadalupe Vizoso-Pinto, Apolinaria García, Shoichiro Kurata, Haruki Kitazawa, Julio Villena

    Microorganisms 10:2185 1-22 2022/11/03

    Publisher:

    DOI: 10.3390/microorganisms10112185  

  59. Lactiplantibacillus plantarum LOC1 Isolated from Fresh Tea Leaves Modulates Macrophage Response to TLR4 Activation Peer-reviewed

    Masahiko Suzuki, Leonardo Albarracin, Yuji Tsujikawa, Kohtaro Fukuyama, Iwao Sakane, Julio Villena*, Haruki Kitazawa*

    Foods 11:3257 1-24 2022/10/18

    Publisher: MDPI AG

    DOI: 10.3390/foods11203257  

    eISSN: 2304-8158

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    Previously, we demonstrated that Lactiplantibacillus plantarum LOC1, originally isolated from fresh tea leaves, was able to improve epithelial barrier integrity in in vitro models, suggesting that this strain is an interesting probiotic candidate. In this work, we aimed to continue characterizing the potential probiotic properties of the LOC1 strain, focusing on its immunomodulatory properties in the context of innate immunity triggered by Toll-like receptor 4 (TLR4) activation. These studies were complemented by comparative and functional genomics analysis to characterize the bacterial genes involved in the immunomodulatory capacity. We carried out a transcriptomic study to evaluate the effect of L. plantarum LOC1 on the response of murine macrophages (RAW264.7 cells) to the activation of TLR4. We demonstrated that L. plantarum LOC1 exerts a modulatory effect on lipopolysaccharide (LPS)-induced inflammation, resulting in a differential regulation of immune factor expression in macrophages. The LOC1 strain markedly reduced the LPS-induced expression of some inflammatory cytokines (IL-1β, IL-12, and CSF2) and chemokines (CCL17, CCL28, CXCL3, CXCL13, CXCL1, and CX3CL1), while it significantly increased the expression of other cytokines (TNF-α, IL-6, IL-18, IFN-β, IFN-γ, and CSF3), chemokines (IL-15 and CXCL9), and activation markers (H2-k1, H2-M3, CD80, and CD86) in RAW macrophages. Our results show that L. plantarum LOC1 would enhance the intrinsic functions of macrophages, promoting their protective effects mediated by the stimulation of the Th1 response without affecting the regulatory mechanisms that help control inflammation. In addition, we sequenced the LOC1 genome and performed a genomic characterization. Genomic comparative analysis with the well-known immunomodulatory strains WCSF1 and CRL1506 demonstrated that L. plantarum LOC1 possess a set of adhesion factors and genes involved in the biosynthesis of teichoic acids and lipoproteins that could be involved in its immunomodulatory capacity. The results of this work can contribute to the development of immune-related functional foods containing L. plantarum LOC1.

  60. Modulation of Alveolar Macrophages by Postimmunobiotics: Impact on TLR3-Mediated Antiviral Respiratory Immunity International-journal International-coauthorship Peer-reviewed

    Mikado Tomokiyo, Fernanda Raya-Tonetti, Hikari Yamamuro, Ryoko Shibata, Kohtaro Fukuyama, Nadia Gobbato, Leonardo Albarracin, Muhammad Shahid Riaz Rajoka, A. K. M. Humayun Kober, Wakako Ikeda-Ohtsubo, Julio Villena, Haruki Kitazawa

    Cells 11:2986 1-23 2022/09/25

    Publisher: MDPI

    DOI: 10.3390/cells11192986  

  61. Respiratory Commensal Bacteria Increase Protection against Hypermucoviscous Carbapenem-Resistant Klebsiella pneumoniae ST25 Infection International-journal International-coauthorship Peer-reviewed

    Stefania Dentice Maidana, Ramiro Ortiz Moyano, Juan Vargas, Kohtaro Fukuyama, Shoichiro Kurata, Vyacheslav Melnikov, María Jure, Haruki Kitazawa, Julio Villena

    Pathogens 11:1063 1-11 2022/09/19

    Publisher: MDPI

    DOI: 10.3390/pathogens11091063  

  62. Genomic Characterization of Lactiplantibacillus plantarum Strains Possessing Differential Antiviral Immunomodulatory Activities International-journal International-coauthorship Peer-reviewed

    Leonardo Albarracin, Fernanda Raya-Tonetti, Kohtaro Fukuyama, Yoshihito Suda, Binghui Zhou, Ayelen Baillo, Silvina Fadda, Lucila Saavedra, Shoichiro Kurata, Elvira Maria Hebert, Haruki Kitazawa, Julio Villena

    1 136-160 2022/07/06

    Publisher: MDPI

    DOI: 10.3390/bacteria1030012  

  63. Genomic and Immunological Characterization of Hypermucoviscous Carbapenem-Resistant Klebsiella pneumoniae ST25 Isolates from Northwest Argentina International-journal International-coauthorship Peer-reviewed

    Leonardo Albarracin, Ramiro Ortiz Moyano, Juan Martin Vargas, Bruno G. N. Andrade, Juan Cortez Zamar, Stefania Dentice Maidana, Kohtaro Fukuyama, Shoichiro Kurata, María Ángela Jure, Haruki Kitazawa, Julio Villena

    Int. J. Mol. Sci. 23 (13) 7361-7361 2022/07/01

    Publisher: {MDPI} {AG}

    DOI: 10.3390/ijms23137361  

  64. CNSL(カシューナッツ殻油)給与の乳牛へ及ぼす影響

    濱嶋 洋輔, 宮島 吉範, 鈴木 保宜, 北澤 春樹, 飛松 裕基, 梅澤 俊明, 田森 航也, 犬童 優樹, 疋田 千枝, 冷牟田 修一

    畜産技術 6 21-26 2022/06/01

    Publisher: (公社)畜産技術協会

  65. Techno-functional properties and immunomodulatory potential of exopolysaccharide from Lactiplantibacillus plantarum MM89 isolated from human breast milk International-journal International-coauthorship Peer-reviewed

    Muhammad Shahid Riaz Rajoka, Hafiza Mahreen Mehwish, Haruki Kitazawa, Francisco J. Barba, Laureline Berthelot, Muhammad Umair, Qinchang Zhu, Zhendan He, Liqing Zhao

    Food Chem. 377:131954 1-12 2022/05

    Publisher: Elsevier BV

    DOI: 10.1016/j.foodchem.2021.131954  

    ISSN: 0308-8146

  66. Editorial: Malnutrition and Infections International-journal International-coauthorship Invited Peer-reviewed

    Julio Villena*, Haruki Kitazawa*, Imad Al Kassaa, Susana Alvarez

    Front. Nutr. 9:897780 1-2 2022/04/06

    Publisher: Frontiers

    DOI: 10.3389/fnut.2022.897780  

  67. The role of respiratory microbiota in the protection against viral diseases: respiratory commensal bacteria as next-generation probiotics for COVID-19 International-coauthorship Invited Peer-reviewed

    Bruno G. N. ANDRADE, Rafael R. C. CUADRAT, Fernanda Raya TONETTI, Haruki KITAZAWA*, Julio VILLENA*

    Bioscience of Microbiota, Food and Health 41 (3) 94-102 2022/03/22

    Publisher: BMFH Press

    DOI: 10.12938/bmfh.2022-009  

  68. Immunomodulation Potential of Probiotics: A Novel Strategy for Improving Livestock Health, Immunity, and Productivity International-journal International-coauthorship Peer-reviewed

    A. K. M, Humayun Kober, Muhammad Shahid Riaz Rajoka, Hafiza Mahreen Mehwish, Julio Villena, Haruki Kitazawa

    10:388 1-21 2022/02/07

    DOI: 10.3390/microorganisms10020388  

  69. Soymilk-fermented with Lactobacillus delbrueckii subsp. delbrueckii TUA4408L improves immune-health in pigs International-journal International-coauthorship Peer-reviewed

    Y Suda, K Kagawa, K Fukuyama, M Elean, B Zhou, M Tomokiyo, M Aminul Islam, M S R Rajoka, A K M Humayun Kober, T Shimazu, S Egusa, Y Terashima, H Aso, W Ikeda-Ohtsubo, J Villena, H Kitazawa

    Beneficial microbes 13 (1) 61-72 2022/01/31

    DOI: 10.3920/BM2021.0068  

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    Lactobacillus delbrueckii subsp. delbrueckii TUA4408L has the ability to grow and ferment soymilk and is able to modulate the innate immune response of intestinal epithelial cells in vitro. These two properties prompt us to evaluate whether the soymilk fermented with the TUA4408L strain can induce beneficial immunomodulatory effects in vivo. For this purpose, pigs were selected as a preclinical model. The studies performed here demonstrated that the L. delbrueckii subsp. delbrueckii TUA4408L-fermented soymilk (TUA4408L FSM) reduced blood markers of inflammation and differentially regulated the expression of inflammatory and regulatory cytokines in the intestinal mucosa. These immunological changes induced by the TUA4408L FSM were associated to an enhanced resistance to pathogenic Escherichia coli and an improved grow performance and meat quality of pigs. The experiments and analysis in our study indicate that the immunobiotic TUA4408L FSM could be an interesting non-dairy functional food to beneficially modulate the intestinal immune system, improve protection against pathogens and reduce inflammatory damage. The preclinical study carried out here in pigs could have a better correlation in humans, compared to a rodent model. However, the clinical relevance of these findings still needs to be confirmed by further research, for example, in controlled human challenge studies.

  70. Prevention of mastitis in multiparous dairy cows with a previous history of mastitis by oral feeding with probiotic <scp> Bacillus subtilis </scp> International-journal

    Megumi Urakawa, Tao Zhuang, Hidetoshi Sato, Satoru Takanashi, Kozue Yoshimura, Yuma Endo, Teppei Katsura, Tsuyoshi Umino, Koutaro Tanaka, Hitoshi Watanabe, Hiroko Kobayashi, Naokazu Takada, Tomoyuki Kozutsumi, Hiroaki Kumagai, Takafumi Asano, Kohko Sazawa, Nobuhisa Ashida, Guoqi Zhao, Michael T. Rose, Haruki Kitazawa, Hitoshi Shirakawa, Kouichi Watanabe, Tomonori Nochi, Takehiko Nakamura, Hisashi Aso

    Animal Science Journal 93 (e13764) 1-13 2022/01

    Publisher: Wiley

    DOI: 10.1111/asj.13764  

    ISSN: 1344-3941

    eISSN: 1740-0929

  71. Lactobacillus delbrueckii CRL 581 Differentially Modulates TLR3-Triggered Antiviral Innate Immune Response in Intestinal Epithelial Cells and Macrophages International-journal International-coauthorship Peer-reviewed

    Mariano Elean, Leonardo Albarracin, Kohtaro Fukuyama, Binghui Zhou, Mikado Tomokiyo, Shugo Kitahara, Shota Araki, Yoshihito Suda, Lucila Saavedra, Julio Villena, Elvira M. Hebert, Haruki Kitazawa

    Microorganisms 9:2449 (12) 1-18 2021/12

    Publisher: MDPI AG

    DOI: 10.3390/microorganisms9122449  

    eISSN: 2076-2607

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    Lactobacillus delbrueckii subsp. lactis CRL 581 beneficially modulates the intestinal antiviral innate immune response triggered by the Toll-like receptor 3 (TLR3) agonist poly(I:C) in vivo. This study aimed to characterize further the immunomodulatory properties of the technologically relevant starter culture L. delbrueckii subsp. lactis CRL 581 by evaluating its interaction with intestinal epithelial cells and macrophages in the context of innate immune responses triggered by TLR3. Our results showed that the CRL 581 strain was able to adhere to porcine intestinal epithelial (PIE) cells and mucins. The CRL 581 strain also augmented the expression of antiviral factors (IFN-α, IFN-β, Mx1, OAS1, and OAS2) and reduced inflammatory cytokines in PIE cells triggered by TLR3 stimulation. In addition, the influence of L. delbrueckii subsp. lactis CRL 581 on the response of murine RAW macrophages to the activation of TLR3 was evaluated. The CRL 581 strain was capable of enhancing the expression of IFN-α, IFN-β, IFN-γ, Mx1, OAS1, TNF-α, and IL-1β. Of note, the CRL 581 strain also augmented the expression of IL-10 in macrophages. The results of this study show that the high proteolytic strain L. delbrueckii spp. lactis CRL 581 was able to beneficially modulate the intestinal innate antiviral immune response by regulating the response of both epithelial cells and macrophages relative to TLR3 activation.

  72. Novel LysM motifs for antigen display on lactobacilli for mucosal immunization International-journal International-coauthorship Peer-reviewed

    Fernanda Raya-Tonetti, Melisa Müller, Jacinto Sacur, Haruki Kitazawa*, Julio Villena*†, Maria Guadalupe Vizoso-Pinto*†(†: Equal contribution)

    Sci Rep 11:21691 1-11 2021/11/04

  73. NOD2 Genotypes Affect the Symptoms and Mortality in the Porcine Circovirus 2-Spreading Pig Population International-journal Peer-reviewed

    Kasumi Suzuki, Hiroki Shinkai, Gou Yoshioka, Toshimi Matsumoto, Junji Tanaka, Noboru Hayashi, Haruki Kitazawa, Hirohide Uenishi

    Genes 12:1424 (9) 1-11 2021/09/16

    Publisher: MDPI AG

    DOI: 10.3390/genes12091424  

    eISSN: 2073-4425

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    The nucleotide oligomerization domain (NOD)-like receptor 2 (NOD2) is an intracellular pattern recognition receptor that detects components of peptidoglycans from bacterial cell walls. NOD2 regulates bowel microorganisms, provides resistance against infections such as diarrhea, and reduces the risk of inflammatory bowel diseases in humans and mice. We previously demonstrated that a specific porcine NOD2 polymorphism (NOD2-2197A &gt; C) augments the recognition of peptidoglycan components. In this study, the relationships between porcine NOD2-2197A/C genotypes affecting molecular functions and symptoms in a porcine circovirus 2b (PCV2b)-spreading Duroc pig population were investigated. The NOD2 allele (NOD2-2197A) with reduced recognition of the peptidoglycan components augmented the mortality of pigs at the growing stage in the PCV2b-spreading population. Comparison of NOD2 allele frequencies in the piglets before and after invasion of PCV2b indicated that the ratio of NOD2-2197A decreased in the population after the PCV2b epidemic. This data indicated that functional differences caused by NOD2-2197 polymorphisms have a marked impact on pig health and livestock productivity. We suggest that NOD2-2197CC is a PCV2 disease resistant polymorphism, which is useful for selective breeding by reducing mortality and increasing productivity.

  74. Immunobiotic Lactobacilli Improve Resistance of Respiratory Epithelial Cells to SARS-CoV-2 Infection International-journal International-coauthorship

    Md. Aminul Islam, Leonardo Albarracin, Mikado Tomokiyo, Juan Carlos Valdez, Jacinto Sacur, Maria Guadalupe Vizoso-Pinto, Bruno G. N. Andrade, Rafael R. C. Cuadrat, Haruki Kitazawa, Julio Villena

    Pathogens 10:1197 (9) 1-16 2021/09/15

    Publisher: MDPI AG

    DOI: 10.3390/pathogens10091197  

    eISSN: 2076-0817

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    Previously, we reported that immunomodulatory lactobacilli, nasally administered, beneficially regulated the lung antiviral innate immune response induced by Toll-like receptor 3 (TLR3) activation and improved protection against the respiratory pathogens, influenza virus and respiratory syncytial virus in mice. Here, we assessed the immunomodulatory effects of viable and non-viable Lactiplantibacillus plantarum strains in human respiratory epithelial cells (Calu-3 cells) and the capacity of these immunobiotic lactobacilli to reduce their susceptibility to the acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Immunobiotic L. plantarum MPL16 and CRL1506 differentially modulated IFN-β, IL-6, CXCL8, CCL5 and CXCL10 production and IFNAR2, DDX58, Mx1 and OAS1 expression in Calu-3 cells stimulated with the TLR3 agonist poly(I:C). Furthermore, the MPL16 and CRL1506 strains increased the resistance of Calu-3 cells to the challenge with SARS-CoV-2. L. plantarum MPL16 induced these beneficial effects more efficiently than the CRL1506 strain. Of note, neither non-viable MPL16 and CRL1506 strains nor the non-immunomodulatory strains L. plantarum CRL1905 and MPL18 could modify the resistance of Calu-3 cells to SARS-CoV-2 infection or the immune response to poly(I:C) challenge. To date, the potential beneficial effects of immunomodulatory probiotics on SARS-CoV-2 infection and COVID-19 outcome have been extrapolated from studies carried out in the context of other viral pathogens. To the best of our knowledge, this is the first demonstration of the ability of immunomodulatory lactobacilli to positively influence the replication of the new coronavirus. Further mechanistic studies and in vivo experiments in animal models of SARS-CoV-2 infection are necessary to identify specific strains of beneficial immunobiotic lactobacilli like L. plantarum MPL16 or CRL1506 for the prevention or treatment of the COVID-19.

  75. The gut microbiota induces Peyer’s-patch-dependent secretion of maternal IgA into milk International-journal International-coauthorship Peer-reviewed

    Katsuki Usami, Kanae Niimi, Ayumi Matsuo, Yoshihisa Suyama, Yoshifumi Sakai, Shintaro Sato, Kohtaro Fujihashi, Hiroshi Kiyono, Saeka Uchino, Mutsumi Furukawa, Jahidul Islam, Kaori Ito, Taiki Moriya, Yutaka Kusumoto, Michio Tomura, Russell C. Hovey, Junichi Sugawara, Hiroshi Yoneyama, Haruki Kitazawa, Kouichi Watanabe, Hisashi Aso, Tomonori Nochi

    Cell Reports 36(10):109655 (10) 1-39 2021/09/07

    Publisher: Elsevier BV

    DOI: 10.1016/j.celrep.2021.109655  

    ISSN: 2211-1247

  76. Genome-wide association studies for production, respiratory disease, and immune-related traits in Landrace pigs International-journal Peer-reviewed

    Yoshinobu Uemoto, Kasumi Ichinoseki, Toshimi Matsumoto, Nozomi Oka, Hironori Takamori, Hiroshi Kadowaki, Chihiro Kojima-Shibata, Eisaku Suzuki, Toshihiro Okamura, Hisashi Aso, Haruki Kitazawa, Masahiro Satoh, Hirohide Uenishi, Keiichi Suzuki

    Sci Rep 11:15823 (1) 1-11 2021/08/04

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1038/s41598-021-95339-2  

    eISSN: 2045-2322

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    <title>Abstract</title>Identification of a quantitative trait locus (QTL) related to a chronic respiratory disease such as Mycoplasmal pneumonia of swine (MPS) and immune-related traits is important for the genetic improvement of disease resistance in pigs. The objective of this study was to detect a novel QTL for a total of 22 production, respiratory disease, and immune-related traits in Landrace pigs. A total of 874 Landrace purebred pigs, which were selected based on MPS resistance, were genotyped using the Illumina PorcineSNP60 BeadChip. We performed single nucleotide polymorphism (SNP)-based and haplotype-based genome-wide association studies (GWAS) to detect a novel QTL and to evaluate the possibility of a pleiotropic QTL for these traits. SNP-based GWAS detected a total of six significant regions in backfat thickness, ratio of granular leucocytes to lymphatic cells, plasma concentration of cortisol at different ages, and complement alternative pathway activity in serum. The significant region detected by haplotype-based GWAS was overlapped across the region detected by SNP-based GWAS. Most of these detected QTL regions were novel regions with some candidate genes located in them. With regard to a pleiotropic QTL among traits, only three of these detected QTL regions overlapped among traits, and many detected regions independently affected the traits.

  77. Characterization of Weissella viridescens UCO-SMC3 as a Potential Probiotic for the Skin: Its Beneficial Role in the Pathogenesis of Acne Vulgaris International-journal International-coauthorship Peer-reviewed

    Marcela Espinoza-Monje, Jorge Campos, Eduardo Alvarez Villamil, Alonso Jerez, Stefania Dentice Maidana, Mariano Elean, Susana Salva, Haruki Kitazawa, Julio Villena, Apolinaria García

    Microorganisms 9:1486 1-24 2021/07

    Publisher: MDPI

    DOI: 10.3390/microorganisms9071486  

  78. Genome note: Draft genome sequences of two hypermucoviscous carbapenem-resistant ST25 Klebsiella pneumoniae strains causing respiratory and systemic infections International-journal International-coauthorship Peer-reviewed

    Journal of Global Antimicrobial Resistance 26 174-176 2021/06/18

    Publisher: Elsevier

    DOI: 10.1016/j.jgar.2021.05.018  

  79. The Respiratory Commensal Bacterium Dolosigranulum pigrum 040417 Improves the Innate Immune Response to Streptococcus pneumoniae International-journal International-coauthorship Peer-reviewed

    Fernanda Raya Tonetti, Mikado Tomokiyo, Ramiro Ortiz Moyano, Sandra Quilodrán-Vega, Hikari Yamamuro, Paulraj Kanmani, Vyacheslav Melnikov, Shoichiro Kurata, Haruki Kitazawa, Julio Villena

    Microorganisms 9:1324 1-19 2021/06

    Publisher: MDPI

    DOI: 10.3390/microorganisms9061324  

  80. Evaluation of Porcine Intestinal Epitheliocytes as an In vitro Immunoassay System for the Selection of Probiotic Bifidobacteria to Alleviate Inflammatory Bowel Disease. International-journal International-coauthorship Peer-reviewed

    Nana Sato, Mao Yuzawa, Md Islam Aminul, Mikado Tomokiyo, Leonardo Albarracin, Valeria Garcia-Castillo, Wakako Ideka-Ohtsubo, Noriyuki Iwabuchi, Jin-Zhong Xiao, Apolinaria Garcia-Cancino, Julio Villena, Haruki Kitazawa

    Probiotics and antimicrobial proteins 13 (3) 824-836 2021/06

    DOI: 10.1007/s12602-020-09694-z  

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    The use of in vitro systems that allow efficient selection of probiotic candidates with immunomodulatory properties could significantly minimize the use of experimental animals. In this work, we generated an in vitro immunoassay system based on porcine intestinal epithelial (PIE) cells and dextran sodium sulfate (DSS) administration that could be useful for the selection and characterization of potential probiotic strains to be used in inflammatory bowel disease (IBD) patients. Our strategy was based on two fundamental pillars: on the one hand, the capacity of PIE cells to create a monolayer by attaching to neighboring cells and efficiently mount inflammatory responses and, on the other hand, the use of two probiotic bifidobacteria strains that have been characterized in terms of their immunomodulatory capacities, particularly in mouse IBD models and patients. Our results demonstrated that DSS administration can alter the epithelial barrier created in vitro by PIE cells and induce a potent inflammatory response, characterized by increases in the expression levels of several inflammatory factors including TNF-α, IL-1α, CCL4, CCL8, CCL11, CXCL5, CXCL9, CXCL10, SELL, SELE, EPCAM, VCAM, NCF2, and SAA2. In addition, we demonstrated that Bifidobacterium breve M-16V and B. longum BB536 are able to regulate the C-jun N-terminal kinase (JNK) intracellular signalling pathway, reducing the DSS-induced alterations of the in vitro epithelial barrier and differentially regulating the inflammatory response in a strain-dependent fashion. The good correlation between our in vitro findings in PIE cells and previous studies in animal models and IBD patients shows the potential value of our system to select new probiotic candidates in an efficient way.

  81. Dolosigranulum pigrum Modulates Immunity against SARS-CoV-2 in Respiratory Epithelial Cells International-journal International-coauthorship Peer-reviewed

    Md. Aminul Islam, Leonardo Albarracin, Vyacheslav Melnikov, Bruno G. N. Andrade, Rafael R. C. Cuadrat, Haruki Kitazawa, Julio Villena

    Pathogens 10 (6) 634-634 2021/05/21

    Publisher: {MDPI} {AG}

    DOI: 10.3390/pathogens10060634  

  82. Immunobiotic Feed Developed with Lactobacillus delbrueckii subsp. delbrueckii TUA4408L and the Soymilk By-Product Okara Improves Health and Growth Performance in Pigs International-journal International-coauthorship Peer-reviewed

    Yoshihito Suda, Nana Sasaki, Kyoma Kagawa, Mariano Elean, Binghui Zhou, Mikado Tomokiyo, Md Aminul Islam, Muhammad Shahid Riaz Rajoka, A K M Humayun Kober, Tomoyuki Shimazu, Shintaro Egusa, Yuji Terashima, Hisashi Aso, Wakako Ikeda-Ohtsubo, Julio Villena, Haruki Kitazawa

    Microorganisms 9 (921) 1-18 2021/04/25

    Publisher: MDPI

    DOI: 10.3390/microorganisms9050921  

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    Lactobacillus delbrueckii subsp. delbrueckii TUA4408L is able to differentially modulate the innate immune response of porcine intestinal epithelial cells triggered by TLR4 activation. This strain also has a remarkable ability to grow on plant substrates. These two immunological and biotechnological characteristics prompted us to evaluate whether the soymilk by-product okara fermented with the TUA4408L strain can serve as an immunobiotic feed with the ability to beneficially modulate the intestinal immunity of piglets after weaning to improve their productivity. Our in vivo studies demonstrated that the administration of immunobiotic TUA4408L-fermented okara feed significantly increased piglet growth performance and meat quality. These positive effects were associated with the ability of the TUA4408L-fermented okara feed to beneficially modulate both intestinal microbiota and immunity in pigs. The immunobiotic feed improved the abundance of the beneficial bacteria Lactobacillus and Lactococcus in the gut of pigs, reduced blood markers of inflammation, and differentially regulated the expression of inflammatory and regulatory cytokines in the intestinal mucosa. These findings indicate that the immunobiotic TUA4408L-fermented okara feed could be an economical and environmentally friendly option to improve the growth performance and immune health of pigs.

  83. Effect of Dietary Supplementation of Immunobiotic Lactiplantibacillusplantarum N14 Fermented Rakkyo (Allium chinense) Pickled Juice on the Immunocompetence and Production Performance of Pigs. International-journal International-coauthorship Peer-reviewed

    Md Aminul Islam, Kenji Hashiguchi, A K M Humayun Kober, Kyoko Morie, Binghui Zhou, Mikado Tomokiyo, Tomoyuki Shimazu, Hisashi Aso, Julio Villena, Yoshihito Suda, Haruki Kitazawa

    Animals : an open access journal from MDPI 11:752 (3) 1-18 2021/03

    Publisher:

    DOI: 10.3390/ani11030752  

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    Rakkyo (Allium chinense), is a Japanese leek that is primarily used to make a popular sweet or sour pickled dish. Lactic acid bacteria are often involved in the preparation steps of fermented pickles, which helps in the effective preservation of the natural bioactive compounds of fruits and vegetable, and thereby exert several health benefits including immunomodulation and growth performance. This work aimed to evaluate the in vivo effects of adding Lactiplantibacillus plantarum N14 fermented rakkyo pickled juice as feed supplement on the immunocompetence and production performance of pigs. We first analyzed the nutritional composition, which revealed that the proportion of protein, lipid, and water-soluble fiber content were estimated as of 4%, 5%, and 5% in rakkyo residual liquid or juice, while 22%, 15% and 14%, respectively, were estimated in rakkyo residual powder. For the in vivo feeding trials, three groups of pigs were treated either with 5%, 20%, or 40% mixture (v/v) of fermented rakkyo pickled juice and the grinded residual liquid supplemented in the drinking water in addition to standard feed. The results of the feeding trials showed that the administration of a juice mixture of 5% or 20% (fermented pickled juice and residual liquid) had a similar trend of effects in improving the complement activity, phagocytic activity and leucocytes counts in the peripheral blood when compared to pigs fed with 40% mixture or untreated controls. Those changes were related to an improved resistance to enteric infections. Moreover, animals receiving a mixture of fermented pickled juice and fermented rakkyo residues had a higher growth rate and carcass quality than controls. The results suggested that the use of 5% mixture of fermented rakkyo pickled juice and the residual liquid through drinking water could be a cost-effective approach to promote the immune-health and production performance of pigs. This approach would contribute not only to the sustainable management of food wastes but also to the application of a value-added feed supplement for the promotion of animal health and production.

  84. Characterisation of sugar nucleotides in colostrum of dairy domestic farms animals International-journal Peer-reviewed

    Mineguchi, Y., Goto, K., Sudo, Y., Hirayama, K., Kashiwagi, H., Sasagase, I., Kitazawa, H., Asakuma, S., Fukuda, K., Urashima, T.

    International Dairy Journal 113 1-14 2021/02

    DOI: 10.1016/j.idairyj.2020.104897  

    ISSN: 0958-6946

  85. Improvement of disease resistance in livestock: Application of immunogenomics and CRISPR/Cas9 technology International-journal Peer-reviewed

    Islam, M.A., Rony, S.A., Rahman, M.B., Cinar, M.U., Villena, J., Uddin, M.J., Kitazawa, H.

    Animals 10 (12) 1-20 2020/11/28

    Publisher: MDPI

    DOI: 10.3390/ani10122236  

    ISSN: 2076-2615

  86. Functional and Genomic Characterization of Ligilactobacillus salivarius TUCO-L2 Isolated From Lama glama Milk: A Promising Immunobiotic Strain to Combat Infections International-journal International-coauthorship Peer-reviewed

    Sandra Quilodrán-Vega, Leonardo Albarracin, Flavia Mansilla, Lorena Arce, Binghui Zhou, Md Aminul Islam, Mikado Tomokiyo, Imad Al Kassaa, Yoshihito Suda, Haruki Kitazawa, Julio Villena

    Frontiers in Microbiology 11:608752 1-24 2020/11

    Publisher: Frontiers Media SA

    DOI: 10.3389/fmicb.2020.608752  

    eISSN: 1664-302X

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    Potential probiotic or immunobiotic effects of lactic acid bacteria (LAB) isolated from the milk of the South American camelid llama (<italic>Lama glama</italic>) have not been reported in published studies. The aim of the present work was to isolate beneficial LAB from llama milk that can be used as potential probiotics active against bacterial pathogens. LAB strains were isolated from llama milk samples. <italic>In vitro</italic> functional characterization of the strains was performed by evaluating the resistance against gastrointestinal conditions and inhibition of the pathogen growth. Additionally, the adhesive and immunomodulatory properties of the strains were assessed. The functional studies were complemented with a comparative genomic evaluation and <italic>in vivo</italic> studies in mice. <italic>Ligilactobacillus salivarius</italic> TUCO-L2 showed enhanced probiotic/immunobiotic potential compared to that of other tested strains. The TUCO-L2 strain was resistant to pH and high bile salt concentrations and demonstrated antimicrobial activity against Gram-negative intestinal pathogens and adhesion to mucins and epithelial cells. <italic>L. salivarius</italic> TUCO-L2 modulated the innate immune response triggered by Toll-like receptor (TLR)-4 activation in intestinal epithelial cells. This effect involved differential regulation of the expression of inflammatory cytokines and chemokines mediated by the modulation of the negative regulators of the TLR signaling pathway. Moreover, the TUCO-L2 strain enhanced the resistance of mice to <italic>Salmonella</italic> infection. This is the first report on the isolation and characterization of a potential probiotic/immunobiotic strain from llama milk. The <italic>in vitro, in vivo</italic>, and <italic>in silico</italic> investigation performed in this study reveals several research directions that are needed to characterize the TUCO-L2 strain in detail to position this strain as a probiotic or immunobiotic that can be used against infections in humans or animals, including llama.

  87. Bayesian latent class evaluation of three tests for the screening of subclinical caprine mastitis in Bangladesh International-journal Peer-reviewed

    Islam, M.A., Rony, S.A., Kitazawa, H., Rahman, A.A.

    Tropical Animal Health and Production 52 (6) 2873-2881 2020/11

    DOI: 10.1007/s11250-020-02263-0  

    ISSN: 1573-7438 0049-4747

  88. Editorial: Nutrition, Immunity and Viral Infections Invited Peer-reviewed

    Villena, J., Shimosato, T., Vizoso-Pinto, M.G., Kitazawa, H.

    Frontiers in Nutrition 7 1-2 2020/09/08

    DOI: 10.3389/fnut.2020.00125  

    ISSN: 2296-861X

  89. IL-12p40 gene expression in lung and hilar lymph nodes of MPS resistant pigs International-journal Peer-reviewed

    Akiko Sakuma, Shizuka Sugawara, Hikaru Hidaka, Mitsuru Nakajo, Yoshihito Suda, Tomoyuki Shimazu, Michael T. Rose, Megumi Urakawa, Tao Zhuang, Guoqi Zhao, Kouichi Watanabe, Tomonori Nochi, Haruki Kitazawa, Kazuo Katoh, Keiichi Suzuki, Hisashi Aso

    Animal Science Journal 91 (1) e13450 2020/09/03

    Publisher: Wiley

    DOI: 10.1111/asj.13450  

    ISSN: 1344-3941

    eISSN: 1740-0929

  90. Alveolar Macrophages Are Key Players in the Modulation of the Respiratory Antiviral Immunity Induced by Orally Administered Lacticaseibacillus rhamnosus CRL1505. International-journal Peer-reviewed

    Valeria Garcia-Castillo, Mikado Tomokiyo, Fernanda Raya Tonetti, Md Aminul Islam, Hideki Takahashi, Haruki Kitazawa, Julio Villena

    Frontiers in immunology 11 (568636) 1-20 2020/09

    DOI: 10.3389/fimmu.2020.568636  

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    The oral administration of Lacticaseibacillus rhamnosus CRL1505 differentially modulates the respiratory innate antiviral immune response triggered by Toll-like receptor 3 (TLR3) activation in infant mice, improving the resistance to Respiratory Syncytial Virus (RSV) infection. In this work, by using macrophages depletion experiments and a detailed study of their production of cytokines and antiviral factors we clearly demonstrated the key role of this immune cell population in the improvement of both viral elimination and the protection against lung tissue damage induced by the CRL1505 strain. Orally administered L. rhamnosus CRL1505 activated alveolar macrophages and enhanced their ability to produce type I interferons (IFNs) and IFN-γ in response to RSV infection. Moreover, an increased expression of IFNAR1, Mx2, OAS1, OAS2, RNAseL, and IFITM3 was observed in alveolar macrophages after the oral treatment with L. rhamnosus CRL1505, which was consistent with the enhanced RSV clearance. The depletion of alveolar macrophages by the time of L. rhamnosus CRL1505 administration abolished the ability of infant mice to produce increased levels of IL-10 in response to RSV infection. However, no improvement in IL-10 production was observed when primary cultures of alveolar macrophages obtained from CRL1505-treated mice were analyzed. Of note, alveolar macrophages from the CRL1505 group had an increased production of IL-6 and IL-27 suggesting that these cells may play an important role in limiting inflammation and protecting lung function during RSV infection, by increasing the maturation and activation of Treg cells and their subsequent production of IL-10. In addition, we provided evidence of the important role of CD4+ cells and IFN-γ in the activation of alveolar macrophages highlighting a putative pathway through which the intestinal and respiratory mucosa are communicated under the influence of L. rhamnosus CRL1505.

  91. Draft Genome Sequence of Ligilactobacillus salivarius FFIG58 Isolated from the Intestinal Tract of Wakame-fed Pig Peer-reviewed

    Binghui Zhou, Leonardo Albarracin, Yuki Masumizu, Yuhki Indo, Md. Aminul Islam, Valeria Garcia-Castillo, Wakako Ikeda-Ohtsubo, Yoshihito Suda, Hisashi Aso, Julio Villena, Haruki Kitazawa

    Microbiology Resource Announcements 9 (34) e00839-20 2020/08/20

    Publisher: American Society for Microbiology

    DOI: 10.1128/MRA.00839-20  

    eISSN: 2576-098X

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    <title>ABSTRACT</title> <named-content content-type="genus-species">Ligilactobacillus salivarius</named-content> FFIG58 was isolated from the intestine of a wakame-fed pig and sequenced with an Illumina HiSeq system. FFIG58 genome sequencing revealed a genome size of 1,984,180 bp, with 1,994 protein-coding genes and a GC content of 32.9%. This draft genome sequence will contribute to a better understanding of the porcine gut microbiome.

  92. Draft genome sequence of ligilactobacillus salivarius TUCO-L2, isolated from lama glama milk Peer-reviewed

    Albarracin, L., Quilodr{\'a}n-Vega, S., Fukuyama, K., Tomokiyo, M., Aminul Islam, M., Arce, L., Kitazawa, H., Villena, J.

    Microbiology Resource Announcements 9 (32) e00784-20 2020/08/06

    DOI: 10.1128/MRA.00784-20  

    ISSN: 2576-098X

  93. Immunobiotic Lactobacillus jensenii TL2937 Alleviates Dextran Sodium Sulfate-Induced Colitis by Differentially Modulating the Transcriptomic Response of Intestinal Epithelial Cells. International-journal Peer-reviewed

    Nana Sato, Valeria Garcia-Castillo, Mao Yuzawa, Md Aminul Islam, Leonardo Albarracin, Mikado Tomokiyo, Wakako Ikeda-Ohtsubo, Apolinaria Garcia-Cancino, Hideki Takahashi, Julio Villena, Haruki Kitazawa

    Frontiers in immunology 11 (2174) 1-21 2020/08

    DOI: 10.3389/fimmu.2020.02174  

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    Immunobiotics have emerged as a promising intervention to alleviate intestinal damage in inflammatory bowel disease (IBD). However, the beneficial properties of immunobiotics are strain dependent and, therefore, each strain has to be evaluated in order to demonstrate its potential application in IBD. Our previous in vitro and in vivo studies demonstrated that Lactobacillus jensenii TL2937 attenuates gut acute inflammatory response triggered by Toll-like receptor 4 activation. However, its effect on colitis has not been evaluated before. In this work, we studied whether the TL2937 strain was able to protect against the development of colitis in a dextran sodium sulfate (DSS)-induced mouse model and we delved into the mechanisms of action by evaluating the effect of the immunobiotic bacteria on the transcriptomic response of DSS-challenged intestinal epithelial cells. L. jensenii TL2937 was administered to adult BALB/c mice before the induction of colitis by the administration of DSS. Colitis and the associated inflammatory response were evaluated for 14 days. Mice fed with L. jensenii TL2937 had lower disease activity index and alterations of colon length when compared to control mice. Reduced myeloperoxidase activity, lower production of pro-inflammatory (TNF-α, IL-1, CXCL1, MCP-1, IL-15, and IL-17), and higher levels of immunoregulatory (IL-10 and IL-27) cytokines were found in the colon of TL2937-treated mice. In addition, the treatment of porcine intestinal epithelial (PIE) cells with L. jensenii TL2937 before the challenge with DSS differentially regulated the activation of the JNK pathway, leading to an increase in epithelial cell integrity and to a differential immunotranscriptomic response. TL2937-treated PIE cells had a significant reduction in the expression of inflammatory cytokines (TNF-α, IL-1α, IL-1β, IL-6, IL-15), chemokines (CCL2, CCL4, CCL8, CXCL4, CXCL5, CXCL9, CXCL10), adhesion molecules (SELE, SELL, EPCAM), and other immune factors (NCF1, NCF2, NOS2, SAA2) when compared to control cells after the challenge with DSS. The findings of this work indicate that (a) L. jensenii TL2937 is able to alleviate DSS-induced colitis suggesting a potential novel application for this immunobiotic strain, (b) the modulation of the transcriptomic response of intestinal epithelial cells would play a key role in the beneficial effects of the TL2937 strain on colitis, and (c) the in vitro PIE cell immunoassay system could be of value for the screening and selection of new immunobiotic strains for their application in IBD.

  94. New immunobiotics from highly proteolytic Lactobacillus delbrueckii strains: their impact on intestinal antiviral innate immune response International-journal Peer-reviewed

    Elean, M., Albarrac{\'i}n, L., Cataldo, P.G., Londero, A., Kitazawa, H., Saavedra, L., Villena, J., Hebert, E.M.

    Beneficial microbes 11 (4) 375-390 2020/08

    DOI: 10.3920/BM2019.0198  

    ISSN: 1876-2891

  95. Evaluation of Fat Accumulation and Adipokine Production during the Long-Term Adipogenic Differentiation of Porcine Intramuscular Preadipocytes and Study of the Influence of Immunobiotics. International-journal Peer-reviewed

    Asuka Tada, Akm Humayun Kober, Md Aminul Islam, Manami Igata, Michihiro Takagi, Masahiko Suzuki, Hisashi Aso, Wakako Ikeda-Ohtsubo, Kazutoyo Yoda, Kenji Miyazawa, Fang He, Hideki Takahashi, Julio Villena, Haruki Kitazawa

    Cells 9:1715 (7) 1-21 2020/07/17

    DOI: 10.3390/cells9071715  

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    The degree of fat accumulation and adipokine production are two major indicators of obesity that are correlated with increased adipose tissue mass and chronic inflammatory responses. Adipocytes have been considered effector cells for the inflammatory responses due to their capacity to express Toll-like receptors (TLRs). In this study, we evaluated the degree of fat accumulation and adipokine production in porcine intramuscular preadipocyte (PIP) cells maintained for in vitro differentiation over a long period without or with stimulation of either TNF-α or TLR2-, TLR3-, or TLR4-ligands. The cytosolic fat accumulation was measured by liquid chromatography and the expression of adipokines (CCL2, IL-6, IL-8 and IL-10) were quantified by RT-qPCR and ELISA at several time points (0 to 20 days) of PIP cells differentiation. Long-term adipogenic differentiation (LTAD) induced a progressive fat accumulation in the adipocytes over time. Activation of TLR3 and TLR4 resulted in an increased rate of fat accumulation into the adipocytes over the LTAD. The production of CCL2, IL-8 and IL-6 were significantly increased in unstimulated adipocytes during the LTAD, while IL-10 expression remained stable over the studied period. An increasing trend of adiponectin and leptin production was also observed during the LTAD. On the other hand, the stimulation of adipocytes with TLRs agonists or TNF-α resulted in an increasing trend of CCL2, IL-6 and IL-8 production while IL-10 remained stable in all four treatments during the LTAD. We also examined the influences of several immunoregulatory probiotic strains (immunobiotics) on the modulation of the fat accumulation and adipokine production using supernatants of immunobiotic-treated intestinal immune cells and the LTAD of PIP cells. Immunobiotics have shown a strain-specific ability to modulate the fat accumulation and adipokine production, and differentiation of adipocytes. Here, we expanded the utility and potential application of our in vitro PIP cells model by evaluating an LTAD period (20 days) in order to elucidate further insights of chronic inflammatory pathobiology of adipocytes associated with obesity as well as to explore the prospects of immunomodulatory intervention for obesity such as immunobiotics.

  96. Erratum: Fukuyama, K., et al. Evaluation of the Immunomodulatory Ability of Lactic Acid Bacteria Isolated from Feedlot Cattle Against Mastitis Using a Bovine Mammary Epithelial Cells In Vitro Assay. Pathogens 2020, 9, 410

    Kohtaro Fukuyama, Md. Aminul Islam, Michihiro Takagi, Wakako Ikeda-Ohtsubo, Shoichiro Kurata, Hisashi Aso, Maria Elena Fatima Nader-Macías, Graciela Vignolo, Julio Villena, Haruki Kitazawa

    Pathogens 9 (7) 574-574 2020/07/16

    Publisher: {MDPI} {AG}

    DOI: 10.3390/pathogens9070574  

  97. Factors affecting decreasing viscosity of the culture medium during the stationary growth phase of exopolysaccharide-producing Lactobacillus fermentum MTCC 25067 Peer-reviewed

    Bharat Mengi, Shinya Ikeda, Daiki Murayama, Hiroki Bochimoto, Shinpei Matsumoto, Haruki Kitazawa, Tadasu Urashima, Kenji Fukuda

    Bioscience of microbiota, food and health 39 (3) 160-168 2020/07

    DOI: 10.12938/bmfh.2019-051  

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    Lactobacillus fermentum MTCC 25067 produces a hetero-exopolysaccharide (HePS) when cultured which forms supramolecular networks in the culture medium, increasing the viscosity. In the present study, the viscosity of the bacterial culture reached its maximum at 48 hr of cultivation and then decreased during a stationary growth phase lasting for up to 144 hr. The monosaccharide composition did not change during the stationary growth phase, whereas degradation of HePS molecules was noticeable, leading to partial disintegration of their supramolecular networks. The viscosity values of the HePS purified from the culture and dissolved in a fresh medium indicated little contribution of medium components to the viscosity. Absence of the apparent network structure of the HePS in the surrounding area of bacterial cells was observed during the late growth phase, supporting the idea that the decreases in culture viscosity during the prolonged period of cultivation were caused mainly by reduced interactions between bacterial cells and the intact supramolecular networks as a consequence of decreasing bacterial cell wall integrity and partial degradation of HePS molecules.

  98. The role of alveolar macrophages in the improved protection against Respiratory Syncytial Virus and pneumococcal superinfection induced by the peptidoglycan of Lactobacillus rhamnosus CRL1505 International-journal Peer-reviewed

    Patricia Clua, Mikado Tomokiyo, Fernanda Raya Tonetti, Md. Aminul Islam, Valeria García Castillo, Guillermo Marcial, Susana Salva, Susana Alvarez, Hideki Takahashi, Shoichiro Kurata, Haruki Kitazawa, Julio Villena

    Cells 9:1653 (7) 1-27 2020/07

    Publisher: MDPI AG

    DOI: 10.3390/cells9071653  

    eISSN: 2073-4409

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    The nasal priming with nonviable Lactobacillus rhamnosus CRL1505 (NV1505) or its purified peptidoglycan (PG1505) differentially modulates the respiratory innate immune response in infant mice, improving their resistance to primary respiratory syncytial virus (RSV) infection and secondary pneumococcal pneumonia. In association with the protection against RSV-pneumococcal superinfection, it was found that NV1505 or PG1505 significantly enhance the numbers of CD11c+SiglecF+ alveolar macrophages (AMs) producing interferon (IFN)-β. In this work, we aimed to further advance in the characterization of the beneficial effects of NV1505 and PG1505 in the context of a respiratory superinfection by evaluating whether their immunomodulatory properties are dependent on AM functions. Macrophage depletion experiments and a detailed study of their production of cytokines and antiviral factors clearly demonstrated the key role of this immune cell population in the improvement of both the reduction of pathogens loads and the protection against lung tissue damage induced by the immunobiotic CRL1505 strain. Studies at basal conditions during primary RSV or S. pneumoniae infections, as well as during secondary pneumococcal pneumonia, brought the following five notable findings regarding the immunomodulatory effects of NV1505 and PG1505: (a) AMs play a key role in the beneficial modulation of the respiratory innate immune response and protection against RSV infection, (b) AMs are necessary for improved protection against primary and secondary pneumococcal pneumonia, (c) the generation of activated/trained AMs would be essential for the enhanced protection against respiratory pathogens, (d) other immune and nonimmune cell populations in the respiratory tract may contribute to the protection against bacterial and viral infections, and (e) the immunomodulatory properties of NV1505 and PG1505 are strain-specific. These findings significantly improve our knowledge about the immunological mechanisms involved in the modulation of respiratory immunity induced by beneficial microbes.

  99. Intestinal Microbiota and Immune Modulation in Zebrafish by Fucoidan From Okinawa Mozuku (Cladosiphon okamuranus) International-journal Peer-reviewed

    Ikeda-Ohtsubo, W., L{\'o}pez Nadal, A., Zaccaria, E., Iha, M., Kitazawa, H., Kleerebezem, M., Brugman, S.

    Frontiers in Nutrition 7 1-12 2020/06/24

    DOI: 10.3389/fnut.2020.00067  

    ISSN: 2296-861X

  100. Evaluation of the Immunomodulatory Ability of Lactic Acid Bacteria Isolated from Feedlot Cattle Against Mastitis Using a Bovine Mammary Epithelial Cells In Vitro Assay International-journal International-coauthorship Peer-reviewed

    Kohtaro Fukuyama, Md. Aminul Islam, Michihiro Takagi, Wakako Ikeda-Ohtsubo, Shoichiro Kurata, Hisashi Aso, Graciela Vignolo, Julio Villena, Haruki Kitazawa

    Pathogens 9:410 (5) 1-15 2020/06

    Publisher: MDPI AG

    DOI: 10.3390/pathogens9050410  

    eISSN: 2076-0817

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    Bovine mastitis, the inflammation of the mammary gland, affects the quality and quantity of milk yield. Mastitis control relies on single or multiple combinations of antibiotic therapy. Due to increasing antibiotic resistance in pathogens, the intramammary infusion of lactic acid bacteria (LAB) has been considered as a potential alternative to antibiotics for treating and preventing bovine mastitis through the improvement of the host immunity. Probiotic effects are a strain-dependent characteristic; therefore, candidate LAB strains have to be evaluated efficiently to find out the ones with the best potential. Here, we investigated LAB strains originally isolated from feedlot cattle’s environment regarding their ability in inducing the Toll-like receptor (TLR)-triggered inflammatory responses in bovine mammary epithelial (BME) cells in vitro. The BME cells were pre-stimulated with the LAB strains individually for 12, 24, and 48 h and then challenged with Escherichia coli-derived lipopolysaccharide (LPS) for 12 h. The mRNA expression of selected immune genes—interleukin 1 alpha (IL-1α), IL-1β, monocyte chemotactic protein 1 (MCP-1), IL-8, chemokine (C-X-C motif) ligand 2 (CXCL2), and CXCL3 were quantified by real-time quantitative PCR (RT-qPCR). Results indicated that pretreatment with some Lactobacillus strains were able to differentially regulate the LPS inflammatory response in BME cells; however, strain-dependent differences were found. The most remarkable effects were found for Lactobacillus acidophilus CRL2074, which reduced the expression of IL-1α, IL-1β, MCP-1, IL-8, and CXCL3, whereas Lactobacillus rhamnosus CRL2084 diminished IL-1β, MCP-1, and IL-8 expression. The pre-stimulation of BME cells with the CRL2074 strain resulted in the upregulated expression of three negative regulators of the TLRs, including the ubiquitin-editing enzyme A20 (also called tumor necrosis factor alpha-induced protein 3, TNFAIP3), single immunoglobin IL-1 single receptor (SIGIRR), and Toll interacting protein (Tollip) after the LPS challenge. The CRL2084 pre-stimulation upregulated only Tollip expression. Our results demonstrated that the L. acidophilus CRL2074 strain possess remarkable immunomodulatory abilities against LPS-induced inflammation in BME cells. This Lactobacillus strain could be used as candidate for in vivo testing due to its beneficial effects in bovine mastitis through intramammary infusion. Our findings also suggest that the BME cells immunoassay system could be of value for the in vitro evaluation of the immunomodulatory abilities of LAB against the inflammation resulting from the intramammary infection with mastitis-related pathogens.

  101. The Ability of Respiratory Commensal Bacteria to Beneficially Modulate the Lung Innate Immune Response Is a Strain Dependent Characteristic International-journal Peer-reviewed

    Moyano, R. O. F. R. Tonetti†, M. Tomokiyo†, P. Kanmani, M. G. Vizoso-Pinto, H. Kim, S. Quilodrán-Vega, V. Melnikov, S. Alvarez, H. Takahashi, S. Kurata, H. Kitazawa*, Julio Villena* (†: Equal contribution)

    Microorganisms 8(5):727 (5) 1-23 2020/05/13

    Publisher: MDPI AG

    DOI: 10.3390/microorganisms8050727  

    eISSN: 2076-2607

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    We investigated whether the ability of commensal respiratory bacteria to modulate the innate immune response against bacterial and viral pathogens was a shared or strain-specific characteristic. Bacterial strains belonging to the Corynebacterium pseudodiphtheriticum and Dolosigranulum pigrum species were compared by studying their influence in the Toll-like receptor (TLR)-2- and TLR3-triggered immune responses in the respiratory tract, as well as in the resistance to Respiratory Syncytial Virus (RSV) and Streptococcus pneumoniae infections. We demonstrated that nasally administered C. pseudodiphteriticum 090104 or D. pigrum 040417 were able to modulate respiratory immunity and increase the resistance against pathogens, while other strains of the same species did not influence the respiratory immune responses, demonstrating a clear strain-dependent immunomodulatory effect of respiratory commensal bacteria. We also reported here that bacterium-like particles (BLP) and cell walls derived from immunomodulatory respiratory commensal bacteria are an interesting alternative for the modulation of the respiratory immune system. Our study is a step forward in the positioning of certain strains of respiratory commensal bacteria as next-generation probiotics for the respiratory tract.

  102. Modulation of Toll-like receptor-mediated innate immunity in bovine intestinal epithelial cells by lactic acid bacteria isolated from feedlot cattle International-journal Peer-reviewed

    Mansilla, F., Takagi, M., Garcia-Castillo, V., Aso, H., Nader-Macias, M.E., Vignolo, G., Kitazawa, H., Villena, J.

    Beneficial microbes 11 (3) 269-282 2020/05/04

    DOI: 10.3920/BM2019.0189  

    ISSN: 1876-2891

  103. 乳腺上皮細胞における病原因子による炎症増強とシクロフィリンAの関与

    高木理宏、福山皓太朗、Md Aminul Islam、Leonardo Albarracin、大坪和香子、野地智法、Julio Villena、麻生 久、北澤春樹

    日本乳房炎研究会(第24回学術集会)Proceedings 81-84 2020/03/30

  104. The exopolysaccharide of lactobacillus fermentum UCO-979C is partially involved in its immunomodulatory effect and its ability to improve the resistance against helicobacter pylori infection International-journal International-coauthorship Peer-reviewed

    Garcia-Castillo, V., Marcial, G., Albarrac{\'i}n, L., Tomokiyo, M., Clua, P., Takahashi, H., Kitazawa, H., Garcia-Cancino, A., Villena, J.

    Microorganisms 8 (4) 1-20 2020/03/27

    DOI: 10.3390/microorganisms8040479  

    ISSN: 2076-2607

  105. Transcriptome Analysis of The Inflammatory Responses of Bovine Mammary Epithelial Cells: Exploring Immunomodulatory Target Genes for Bovine Mastitis. International-journal Peer-reviewed

    Md Aminul Islam, Michihiro Takagi, Kohtaro Fukuyama, Ryoya Komatsu, Leonardo Albarracin, Tomonori Nochi, Yoshihito Suda, Wakako Ikeda-Ohtsubo, Victor Rutten, Willem van Eden, Julio Villena, Hisashi Aso, Haruki Kitazawa

    Pathogens (Basel, Switzerland) 9(3):200 (3) 1-18 2020/03/09

    DOI: 10.3390/pathogens9030200  

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    Bovine mastitis is the inflammatory reaction of the mammary gland and is commonly caused by bacterial infections in high-yielding dairy cows. The detailed investigation of the immunotranscriptomic response of bovine mammary epithelial (BME) cells to pattern recognition receptors (PRRs) activation by microbial-associated molecular patterns (MAMPs) can be of great importance for understanding the innate immune defense mechanisms, and for exploring the immunomodulatory candidate genes. In this work, we investigated the transcriptome modifications of BME cells after the in vitro stimulation with Escherichia coli derived lipopolysaccharide (LPS) and heat-killed Staphylococcus aureus JE2 and S. aureus SA003. In addition, the effect of Pam3CSK4 (a synthetic triacylated lipopeptide that activates Toll-like receptor 2 (TLR2)), and the intracellular chemotactic protein cyclophilin A (CyPA), which is secreted by BME cells during mastitis, in the expression changes of selected cytokines and chemokines were evaluated by qPCR. Microarray analysis identified 447, 465 and 520 differentially expressed genes (DEGs) in the BME cells after LPS, S. aureus JE2 and S. aureus SA003 stimulation, respectively. A major differential response in the inflammatory gene expression was noticed between the stimulation of LPS and S. aureus strains. Unlike the S. aureus strains, LPS stimulation resulted in significant upregulation of CCL2, CXCL2, CXCL3, CXCL8, IL1 and IL1, which were confirmed by qPCR analysis. Pam3CSK4 was not able to induce significant changes in the expression of cytokines and chemokines in challenged BME cells. The exogenous CyPA administration was able to upregulate CXCL2, CXCL3, CXCL8, IL1 and IL1 expression in BME cells indicating its ability to promote inflammation. The identification of transcriptional markers of mastitis specific for individual inflammatory factors such as LPS, Pam3CSK4 or CyPA, which can be evaluated in vitro in BME cells, may enable the development of novel diagnostics and/or immunomodulatory treatments, providing new tools for the effective management of mastitis in dairy cows. The results of this work are an advance in this regard.

  106. In-vitro cell culture for efficient assessment of mycotoxin exposure, toxicity and risk mitigation International-journal Peer-reviewed

    Xu, R., Karrow, N.A., Sh, ilya, U.K., Sun, L.-H., Kitazawa, H.

    Toxins 12 (3) 1-31 2020/02/27

    DOI: 10.3390/toxins12030146  

    ISSN: 2072-6651

  107. Transcriptome Modifications in the Porcine Intramuscular Adipocytes during Differentiation and Exogenous Stimulation with TNF-α and Serotonin. International-journal Peer-reviewed

    Asuka Tada, Md Aminul Islam, Akm Humayun Kober, Kohtaro Fukuyama, Michihiro Takagi, Manami Igata, Leonardo Albarracin, Wakako Ikeda-Ohtsubo, Kenji Miyazawa, Kazutoyo Yoda, Fang He, Hideki Takahashi, Julio Villena, Hisashi Aso, Haruki Kitazawa

    International journal of molecular sciences 21 (2) 1-20 2020/01/18

    DOI: 10.3390/ijms21020638  

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    Adipocytes are dynamic cells that have critical functions to maintain body energy homeostasis. Adipocyte physiology is affected by the adipogenic differentiation, cell program, as well as by the exogenous stimulation of biochemical factors, such as serotonin and TNF-α. In this work, we investigated the global transcriptome modifications when porcine intramuscular preadipocyte (PIP) was differentiated into porcine mature adipocyte (pMA). Moreover, we studied transcriptome changes in pMA after stimulation with serotonin or TNF-α by using a microarray approach. Transcriptome analysis revealed that the expression of 270, 261, and 249 genes were modified after differentiation, or after serotonin and TNF-α stimulation, respectively. Expression changes in APP, HNF4A, ESR1, EGR1, SRC, HNF1A, FN1, ALB, STAT3, CBL, CEBPB, AR, FOS, CFTR, PAN2, PTPN6, VDR, PPARG, STAT5A and NCOA3 genes which are enriched in the 'PPAR signaling' and 'insulin resistance' pathways were found in adipocytes during the differentiation process. Dose-dependent serotonin stimulation resulted in a decreased fat accumulation in pMAs. Serotonin-induced differentially expressed genes in pMAs were found to be involved in the significant enrichment of 'GPCR ligand-binding', 'cell chemotaxis', 'blood coagulation and complement', 'metabolism of lipid and lipoproteins', 'regulation of lipid metabolism by PPARA', and 'lipid digestion, mobilization and transport' pathways. TNF-α stimulation also resulted in transcriptome modifications linked with proinflammatory responses in the pMA of intramuscular origin. Our results provide a landscape of transcriptome modifications and their linked-biological pathways in response to adipogenesis, and exogenous stimulation of serotonin- and TNF-α to the pMA of intramuscular origin.

  108. Immunomodulatory Properties of Bacterium-Like Particles Obtained From Immunobiotic Lactobacilli: Prospects for Their Use as Mucosal Adjuvants International-journal Peer-reviewed

    Raya Tonetti, F., Arce, L., Salva, S., Alvarez, S., Takahashi, H., Kitazawa, H., Vizoso-Pinto, M.G., Villena, J.

    Frontiers in Immunology 11 1-13 2020/01

    DOI: 10.3389/fimmu.2020.00015  

    ISSN: 1664-3224

  109. Nasal priming with immunobiotic lactobacilli improves the adaptive immune response against influenza virus International-journal Peer-reviewed

    Tonetti, F.R., Islam, M.A., Vizoso-Pinto, M.G., Takahashi, H., Kitazawa, H., Villena, J.

    International Immunopharmacology 78 (106115) 1-12 2020

    DOI: 10.1016/j.intimp.2019.106115  

    ISSN: 1878-1705 1567-5769

  110. Characterization of the immunomodulatory and anti-Helicobacter pylori properties of the human gastric isolate Lactobacillus rhamnosus UCO-25A International-journal Peer-reviewed

    Garcia-Castillo, V., Mar{\'i}n-Vega, A.M., Ilabaca, A., Albarrac{\'i}n, L., Marcial, G., Kitazawa, H., Garcia-Cancino, A., Villena, J.

    Biofouling 35 (8) 922-937 2019/10

    DOI: 10.1080/08927014.2019.1675153  

    ISSN: 1029-2454 0892-7014

  111. Addition of Wakame seaweed (Undaria pinnatifida) stalk to animal feed enhances immune response and improves intestinal microflora in pigs. International-journal Peer-reviewed

    Tomoyuki Shimazu, Liushiqi Borjigin, Kazuo Katoh, Sang-Gun Roh, Haruki Kitazawa, Keietsu Abe, Yoshihito Suda, Hayato Saito, Hiroshi Kunii, Ken Nihei, Yoshinobu Uemoto, Hisashi Aso, Keiichi Suzuki

    Animal science journal 90 (9) 1248-1260 2019/09

    DOI: 10.1111/asj.13274  

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    This study was conducted to evaluate the effects of supplementation of Wakame seaweed stalks on the immunity and intestinal microflora of pigs. Three separate experiments were performed: Relatively young (start at 20-30 kg; Experiments 1 and 2) and fattening period (70 kg; Experiment 3). All pigs (including the control group) were fed the same commercial feed, free from antibiotic additives, but in the feed for the treatment groups, 1% seaweed powder was added. There were no group differences observed in daily weight gain and feed intake in Experiments 1 and 2 between groups; however, daily weight gain was significantly higher in the treatment group compared to the control group in Experiment 3. The percentage of peripheral blood natural killer cells of the treatment group was significantly higher than that of the control group in all experiments. Although addition of seaweed changed the gene expression of cytokine and toll-like receptors of the small intestinal Peyer's patches slightly, seaweed seems to alter intestinal microflora preferentially, for instance, there was an increase in Lactobacillus and a decrease of Escherichia coli observed. These results suggest that Wakame seaweed can be used as supplement for pig feed to improve the gut health and immunity of pigs.

  112. Isolation and Immunocharacterization of Lactobacillus salivarius from the Intestine of Wakame-Fed Pigs to Develop Novel "Immunosynbiotics". International-journal Peer-reviewed

    Yuki Masumizu, Binghui Zhou, A K M Humayun Kober, Md Aminul Islam, Hikaru Iida, Wakako Ikeda-Ohtsubo, Yoshihito Suda, Leonardo Albarracin, Tomonori Nochi, Hisashi Aso, Keiichi Suzuki, Julio Villena, Haruki Kitazawa

    Microorganisms 7 (6) 1-17 2019/06/06

    DOI: 10.3390/microorganisms7060167  

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    Emerging threats of antimicrobial resistance necessitate the exploration of effective alternatives for healthy livestock growth strategies. 'Immunosynbiotics', a combination of immunoregulatory probiotics and prebiotics with synergistic effects when used together in feed, would be one of the most promising candidates. Lactobacilli are normal residents of the gastrointestinal tract of pigs, and many of them are able to exert beneficial immunoregulatory properties. On the other hand, wakame (Undaria pinnafida), an edible seaweed, has the potential to be used as an immunoregulatory prebiotic when added to livestock feed. Therefore, in order to develop a novel immunosynbiotic, we isolated and characterized immunoregulatory lactobacilli with the ability to utilize wakame. Following a month-long in vivo wakame feeding trial in 8-week-old Landrace pigs (n = 6), sections of intestinal mucous membrane were processed for bacteriological culture and followed by identification of pure colonies by 16S rRNA sequence. Each isolate was characterized in vitro in terms of their ability to assimilate to the wakame and to differentially modulate the expression of interleukin-6 (IL-6) and interferon beta (IFN-β) in the porcine intestinal epithelial (PIE) cells triggered by Toll-like receptor (TLR)-4 and TLR-3 activation, respectively. We demonstrated that feeding wakame to pigs significantly increased the lactobacilli population in the small intestine. We established a wakame-component adjusted culture media that allowed the isolation and characterization of a total of 128 Lactobacilli salivarius colonies from the gut of wakame-fed pigs. Interestingly, several L. salivarius isolates showed both high wakame assimilation ability and immunomodulatory capacities. Among the wakame assimilating isolates, L. salivarius FFIG71 showed a significantly higher capacity to upregulate the IL-6 expression, and L. salivarius FFIG131 showed significantly higher capacity to upregulate the IFN-β expression; these could be used as immunobiotic strains in combination with wakame for the development of novel immunologically active feeds for pigs.

  113. Evaluation of the immunomodulatory activities of the probiotic strain lactobacillus fermentum UCO-979C Peer-reviewed

    Garcia-Castillo, V., Komatsu, R., Clua, P., Indo, Y., Takagi, M., Salva, S., Islam, M.A., Alvarez, S., Takahashi, H., Garcia-Cancino, A., Kitazawa, H., Villena, J.

    Frontiers in Immunology 10 (JUN) 1-14 2019/06

    DOI: 10.3389/fimmu.2019.01376  

    ISSN: 1664-3224

  114. 畜産物の安全性向上を目指したイムノバイオティクスの発展的利用性 Peer-reviewed

    北澤春樹

    Milk Science 68 (1) 49-53 2019/04

    DOI: 10.11465/milk.68.49  

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    酪農科学シンポジウム2018招待講演ショートレビュー

  115. Draft genome sequence of lactobacillus plantarum crl681, isolated from argentinean artisanal fermented sausages Peer-reviewed

    Fadda, S., Villena, J., Albarracin, L., Saavedra, L., Islam, M.A., Vignolo, G.M., Kitazawa, H., Hebert, E.M.

    Microbiology Resource Announcements 8 (15) e01629-18 2019/04

    DOI: 10.1128/MRA.01629-18  

    ISSN: 2576-098X

  116. Draft Genome Sequence of Weissella viridescens UCO-SMC3, Isolated from the Slime of Helix aspersa Müller Snails. International-journal Peer-reviewed

    Apolinaria Garcia-Cancino, Leonardo Albarracin, Marcela Espinoza-Monje, Jorge Campos-Martin, Valeria Garcia-Castillo, Yuka Nakano, Wakako Ikeda-Ohtsubo, Cristian Guitierrez-Zamorano, Hidetoshi Morita, Haruki Kitazawa, Julio Villena

    Microbiology resource announcements 8 (11) e01654-18 2019/03/14

    DOI: 10.1128/MRA.01654-18  

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    This report describes the draft genome sequence of Weissella viridescens UCO-SMC3, isolated from Helix aspersa Müller slime. The reads were generated by a whole-genome sequencing (WGS) strategy on an Illumina MiSeq sequencer and were assembled into contigs with a total estimated size of 1,612,814 bp. A total of 2,455 genes were predicted, including 2,301 protein-coding sequences. The draft genome sequence of W. viridescens UCO-SMC3 will be useful for further studies of specific genetic features and for understanding the mechanisms of its beneficial properties in the skin.

  117. Deciphering the influence of paraimmunobiotic bifidobacteria on the innate antiviral immune response of bovine intestinal epitheliocytes by transcriptomic analyasis International-journal Peer-reviewed

    Albarracin, L, R. Komatsu, V. Garcia-Castillo, H. Aso, N. Iwabuchi, J.-z. Xiao, F. Abe, H. Takahashi, J. Villena, H. Kitazawa

    Beneficial microbes 10 (2) 199-209 2019/02

    DOI: 10.3920/BM2018.0024  

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    IF = 3.370<br /> 国際共著論文

  118. Screening and characterization of immunobiotic lactic acid bacteria with porcine immunoassay systems

    Garcia-Castillo, V., Albarracin, L., Kitazawa, H., Villena, J.

    Methods in Molecular Biology 1887 2019

    DOI: 10.1007/978-1-4939-8907-2_12  

    ISSN: 1064-3745

  119. Correction to: Characterization of the immunomodulatory and anti-Helicobacter pylori properties of the human gastric isolate Lactobacillus rhamnosus UCO-25A (Biofouling, (2019), 35, 8, (922-937), 10.1080/08927014.2019.1675153)

    Garcia-Castillo, V., Mar{\'i}n-Vega, A.M., Ilabaca, A., Albarracin, L., Marcial, G., Kitazawa, H., Cancino, A.G., Villena, J.

    Biofouling 35 (9) 2019

    DOI: 10.1080/08927014.2019.1701828  

    ISSN: 1029-2454 0892-7014

  120. Transcriptome Modifications in Porcine Adipocytes via Toll-Like Receptors Activation. International-journal Peer-reviewed

    Manami Igata, Md Aminul Islam, Asuka Tada, Michihiro Takagi, A K M Humayun Kober, Leonardo Albarracin, Hisashi Aso, Wakako Ikeda-Ohtsubo, Kenji Miyazawa, Kazutoyo Yoda, Fang He, Hideki Takahashi, Julio Villena, Haruki Kitazawa

    Frontiers in immunology 10:1180 1-15 2019

    DOI: 10.3389/fimmu.2019.01180  

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    Adipocytes are the most important cell type in adipose tissue playing key roles in immunometabolism. We previously reported that nine members of the Toll-like receptor (TLR) family are expressed in an originally established porcine intramuscular pre-adipocyte (PPI) cell line. However, the ability of TLR ligands to modulate immunometabolic transcriptome modifications in porcine adipocytes has not been elucidated. Herein, we characterized the global transcriptome modifications in porcine intramuscular mature adipocytes (pMA), differentiated from PPI, following stimulation with Pam3csk4, Poly(I:C) or LPS which are ligands for TLR2, TLR3, and TLR4, respectively. Analysis of microarray data identified 530 (218 up, 312 down), 520 (245 up, 275 down), and 525 (239 up, 286 down) differentially expressed genes (DEGs) in pMA following the stimulation with Pam3csk4, Poly(I:C), and LPS, respectively. Gene ontology classification revealed that DEGs are involved in several biological processes including those belonging to immune response and lipid metabolism pathways. Functionally annotated genes were organized into two groups for downstream analysis: immune response related genes (cytokines, chemokines, complement factors, adhesion molecules, and signal transduction), and genes involved with metabolic and endocrine functions (hormones and receptors, growth factors, and lipid biosynthesis). Differential expression analysis revealed that EGR1, NOTCH1, NOS2, TNFAIP3, TRAF3IP1, INSR, CXCR4, PPARA, MAPK10, and C3 are the top 10 commonly altered genes of TLRs induced transcriptional modification of pMA. However, the protein-protein interaction network of DEGs identified EPOR, C3, STAR, CCL2, and SAA2 as the major hub genes, which were also exhibited higher centrality estimates in the Gene-Transcription factor interaction network. Our results provide new insights of transcriptome modifications associated with TLRs activation in porcine adipocytes and identified key regulatory genes that could be used as biomarkers for the evaluation of treatments having immunomodularoty and/or metabolic functional beneficial effects in porcine adipocytes.

  121. Virus Latency and the Impact on Plants. International-journal Peer-reviewed

    Hideki Takahashi, Toshiyuki Fukuhara, Haruki Kitazawa, Richard Kormelink

    Front. Microbiol. 10 2764-2764 2019

    DOI: 10.3389/fmicb.2019.02764  

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    Plant viruses are thought to be essentially harmful to the lives of their cultivated crop hosts. In most cases studied, the interaction between viruses and cultivated crop plants negatively affects host morphology and physiology, thereby resulting in disease. Native wild/non-cultivated plants are often latently infected with viruses without any clear symptoms. Although seemingly non-harmful, these viruses pose a threat to cultivated crops because they can be transmitted by vectors and cause disease. Reports are accumulating on infections with latent plant viruses that do not cause disease but rather seem to be beneficial to the lives of wild host plants. In a few cases, viral latency involves the integration of full-length genome copies into the host genome that, in response to environmental stress or during certain developmental stages of host plants, can become activated to generate and replicate episomal copies, a transition from latency to reactivation and causation of disease development. The interaction between viruses and host plants may also lead to the integration of partial-length segments of viral DNA genomes or copy DNA of viral RNA genome sequences into the host genome. Transcripts derived from such integrated viral elements (EVEs) may be beneficial to host plants, for example, by conferring levels of virus resistance and/or causing persistence/latency of viral infections. Studies on viral latency in wild host plants might help us to understand and elucidate the underlying mechanisms of latency and provide insights into the raison d'être for viruses in the lives of plants.

  122. Draft genome sequence of probiotic lactobacillus brevis TUCO-5E, isolated from porcine milk Peer-reviewed

    Quilodran-Vega, S.R., Albarracin, L., Hebert, E.M., Saavedra, L., Fonseca, A., Salas-Burgos, A., Kitazawa, H., Villena, J.

    Microbiology Resource Announcements 7 (19) e01239-18 2018/11

    DOI: 10.1128/MRA.01239-18  

    ISSN: 2576-098X

  123. Receptors and Signaling Pathways for Recognition of Bacteria in Livestock and Crops: Prospects for Beneficial Microbes in Healthy Growth Strategies Peer-reviewed

    Villena, J., Kitazawa, H., Van Wees, S.C.M., Pieterse, C.M.J., Takahashi, H.

    Frontiers in immunology 9 (2223) 2223-2223 2018/09

    DOI: 10.3389/fimmu.2018.02223  

    ISSN: 1664-3224

  124. ガラクトオリゴ糖およびオリゴ糖製品7種のヒト由来各種ビフィズス菌によるin vitro利用性試験 Peer-reviewed

    木村一雅, 渡邊陽子, 山田哲也, 秋山拓哉, 外谷英嗣, 旗野 博, 北澤春樹, 齋藤忠夫

    ミルクサイエンス 67 (2) 88-101 2018/08

  125. Phenotypic and functional analysis of bovine peripheral blood dendritic cells before parturition by a novel purification method Peer-reviewed

    Zhuang, T, M. Urakawa, H. Sato, Y. Sato, T. Taguchi, T. Umino, S. Katto, K. Tanaka, K. Yoshimura, N. Takada, H. Kobayashi, M. Ito, M. T. Rose, Y. Kiku, Y. Nagasawa, H. Kitazawa, K. Watanabe, T. Nochi, T. Hayashi, H. Aso

    Anim. Sci. J. 89 (7) 1011-1019 2018/07

    DOI: 10.1111/asj.13014  

    ISSN: 1344-3941

    eISSN: 1740-0929

  126. ブタ腸管マイクロバイオーム研究から考える ブタの抗菌性成長促進剤(AGP)代替法の開発 Peer-reviewed

    大坪 和香子, 北澤 春樹

    東北畜産学会報 68 (1) 1-7 2018/06

    Publisher: 東北畜産学会

    ISSN: 1341-626X

  127. Lactobacillus fermentum UCO-979C beneficially modulates the innate immune response triggered by Helicobacter pylori infection in vitro Peer-reviewed

    Garcia-Castillo, V., Zelaya, H., Ilabaca, A., Espinoza-Monje, M., Komatsu, R., Albarrac{\'i}n, L., Kitazawa, H., Garcia-Cancino, A., Villena, J.

    Beneficial Microbes 9 (5) 829-841 2018/05

    DOI: 10.3920/BM2018.0019  

    ISSN: 1876-2891 1876-2883

  128. Development of immune and microbial environments is independently regulated in the mammary gland Peer-reviewed

    K. Niimi, K. Usami, Y. Fujita, M. Abe, M. Furukawa, Y. Suyama, Y. Sakai, M. Kamioka, N. Shibata, E. J. Park, S. Sato, H. Kiyono, H. Yoneyama, H. Kitazawa, K. Watanabe, T. Nochi, H. Aso

    Mucosal Immunology 11 (3) 643-653 2018/05/01

    Publisher: Nature Publishing Group

    DOI: 10.1038/mi.2017.90  

    ISSN: 1935-3456 1933-0219

    eISSN: 1935-3456

  129. Immunobiotics for the bovine host: Their interaction with intestinal epithelial cells and their effect on antiviral immunity Peer-reviewed

    Villena, J., Aso, H., Rutten, V.P.M.G., Takahashi, H., van Eden, W., Kitazawa, H.

    Frontiers in Immunology 9 (MAR) 1-10 2018/03

    DOI: 10.3389/fimmu.2018.00326  

    ISSN: 1664-3224

  130. Exopolysaccharides from Lactobacillus delbrueckii OLL1073R-1 modulate innate antiviral immune response in porcine intestinal epithelial cells. International-journal Peer-reviewed

    Paulraj Kanmani, Leonardo Albarracin, Hisakazu Kobayashi, Hikaru Iida, Ryoya Komatsu, A K M Humayun Kober, Wakako Ikeda-Ohtsubo, Yoshihito Suda, Hisashi Aso, Seiya Makino, Hiroshi Kano, Tadao Saito, Julio Villena, Haruki Kitazawa

    Molecular immunology 93 253-265 2018/01

    DOI: 10.1016/j.molimm.2017.07.009  

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    Previous studies demonstrated that the extracellular polysaccharides (EPSs) produced by Lactobacillus delbrueckii OLL1073R-1 (LDR-1) improve antiviral immunity, especially in the systemic and respiratory compartments. However, it was not studied before whether those EPSs are able to beneficially modulate intestinal antiviral immunity. In addition, LDR-1-host interaction has been evaluated mainly with immune cells while its interaction with intestinal epithelial cells (IECs) was not addressed before. In this work, we investigated the capacity of EPSs from LDR-1 to modulate the response of porcine IECs (PIE cells) to the stimulation with the Toll-like receptor (TLR)-3 agonist poly(I:C) and the role of TLR2, TLR4, and TLR negative regulators in the immunoregulatory effect. We showed that innate immune response triggered by TLR3 activation in porcine IECs was differentially modulated by EPS from LDR-1. EPSs treatment induced an increment in the expression of interferon (IFN)-α and IFN-β in PIE cells after the stimulation with poly(I:C) as well as the expression of the antiviral factors MxA and RNase L. Those effects were related to the reduced expression of A20 in EPS-treated PIE cells. EPS from LDR-1 was also able to reduce the expression of IL-6 and proinflammatory chemokines. Although further in vivo studies are needed, our results suggest that these EPSs or a yogurt fermented with LDR-1 have potential to improve intestinal innate antiviral response and protect against intestinal viruses.

  131. Draft genome sequence of immunobiotic Lactobacillus rhamnosus strain IBL027, a potential adjuvant for mucosal vaccine development Peer-reviewed

    Vizoso-Pinto, M.G., Saavedra, L., Hebert, E.M., Tonetti, F.R., Albarrac{\'i}n, L., Alvarez, S., Kitazawa, H., Villena, J.

    Genome Announcements 5 (50) e01268-17 2017/12/14

    DOI: 10.1128/genomeA.01268-17  

    ISSN: 2169-8287

  132. Editorial: immunobiotics-interactions of Beneficial Microbes with the immune System Peer-reviewed

    Julio Villena, Haruki Kitazawa

    FRONTIERS IN IMMUNOLOGY 8 (1580) 1-2 2017/11

    DOI: 10.3389/fimmu.2017.01580  

    ISSN: 1664-3224

  133. Peptidoglycan from immunobiotic Lactobacillus rhamnosus improves resistance of infant Mice to respiratory syncytial Viral infection and secondary Pneumococcal Pneumonia Peer-reviewed

    Patricia Clua, Paulraj Kanmani, Hortensia Zelaya, Asuka Tada, A. K. M. Humayun Kober, Susana Salva, Susana Alvarez, Haruki Kitazawa, Julio Villena

    FRONTIERS IN IMMUNOLOGY 8 (948) 1-15 2017/08

    DOI: 10.3389/fimmu.2017.00948  

    ISSN: 1664-3224

  134. Respiratory Commensal Bacteria Corynebacterium pseudodiphtheriticum Improves Resistance of Infant Mice to Respiratory Syncytial Virus and Streptococcus pneumoniae Superinfection Peer-reviewed

    Paulraj Kanmani, Patricia Clua, Maria G. Vizoso-Pinto, Cecilia Rodriguez, Susana Alvarez, Vyacheslav Melnikov, Hideki Takahashi, Haruki Kitazawa, Julio Villena

    FRONTIERS IN MICROBIOLOGY 8 (1613) 1-14 2017/08

    DOI: 10.3389/fmicb.2017.01613  

    ISSN: 1664-302X

  135. Effects of mycoplasmal pneumonia of swine (MPS) lung lesion-selected Landrace pigs on MPS resistance and immune competence in three-way crossbred pigs Peer-reviewed

    Liushiqi Borjigin, Tomoyuki Shimazu, Yuki Katayama, Kouichi Watanabe, Haruki Kitazawa, Sang-gun Roh, Hisashi Aso, Kazuo Katoh, Masahiro Satoh, Yoshihito Suda, Akiko Sakuma, Mituru Nakajo, Keiichi Suzuki

    ANIMAL SCIENCE JOURNAL 88 (4) 575-585 2017/04

    DOI: 10.1111/asj.12698  

    ISSN: 1344-3941

    eISSN: 1740-0929

  136. Probiotic Microorganisms: A Closer Look Peer-reviewed

    Villena, J, H. Kitazawa

    Microorganisms 5 (2) 1-3 2017/04

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    Editorial<br /> 国際共著論文

  137. Draft Genome Sequence of Lactobacillus plantarum MPL16, a Wakame-Utilizing Immunobiotic Strain Isolated from Swine Feces. International-journal Peer-reviewed

    Julio Villena, Lucila Saavedra, Elvira Maria Hebert, Yoshihito Suda, Yuki Masumizu, Leonardo Albarracin, Patricia Clua, Wakako Ikeda-Ohtsubo, Haruki Kitazawa

    Genome announcements 5 (10) e00006-17 2017/03/09

    DOI: 10.1128/genomeA.00006-17  

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    The genome of the immunomodulatory Lactobacillus plantarum MPL16, a strain able to ferment wakame (Undaria pinnatifida), is described here. The reads were assembled into contigs with a total size 3,278,495 bp. The genome information will be useful for further specific genetic studies of this strain that evaluate its immunomodulatory and biotechnological properties.

  138. Draft genome sequence of the immunobiotic strain Lactobacillus jensenii TL2937 Peer-reviewed

    Villena, J., Masumizu, Y., Iida, H., Ikeda-Ohtsubo, W., Albarracin, L., Makino, S., Ohkawara, S., Kimura, K., Saavedra, L., Hebert, E.M., Kitazawa, H.

    Genome Announcements 5 (9) e00005-17 2017/02/05

    DOI: 10.1128/genomeA.00005-17  

    ISSN: 2169-8287

  139. Transcriptomic analysis of the innateantiviral immune response in Porcine intestinal epithelial cells: influence of immunobiotic lactobacilli Peer-reviewed

    Leonardo Albarracin, Hisakazu Kobayashi, Hikaru Iida, Nana Sato, Tomonori Nochi, Hisashi Aso, Susana Salva, Susana Alvarez, Haruki Kitazawa, Julio Villena

    Frontiers in Immunology 8 (57) 1-15 2017/02

    DOI: 10.3389/fimmu.2017.00057  

    ISSN: 1664-3224

  140. Lactobacillus plantarum LA 318 inhibits the adhesion of Candida albicans ATCC 26555 to human colonic mucin

    木下 英樹, 渡辺 真通, 井越 敬司, 石田 光晴, 川井 泰, 北澤 春樹, 三浦 康, 堀井 明, 齋藤 忠夫

    東海大学紀要. 農学部 = Proceedings of School of Agriculture, Tokai University 36 7-14 2017

    Publisher: 東海大学農学部

    ISSN: 1883-1516

  141. Development of an in vitro immunobiotic evaluation system against rotavirus infection in bovine intestinal epitheliocytes Peer-reviewed

    H. Kobayashi, P. Kanmani, T. Ishizuka, A. Miyazaki, J. Soma, L. Albarracin, Y. Suda, T. Nochi, H. Aso, N. Iwabuchi, J. -Z. Xiao, T. Saito, J. Villena, H. Kitazawa

    BENEFICIAL MICROBES 8 (2) 309-321 2017

    DOI: 10.3920/BM2016.0155  

    ISSN: 1876-2883

    eISSN: 1876-2891

  142. Intestinal Innate Antiviral Immunity and Immunobiotics: Beneficial Effects against Rotavirus Infection Peer-reviewed

    Julio Villena, Maria Guadalupe Vizoso-Pinto, Haruki Kitazawa

    Frontiers in Immunology 7 (563) 1-10 2016/12

    DOI: 10.3389/fimmu.2016.00563  

    ISSN: 1664-3224

  143. Respiratory Antiviral immunity and immunobiotics: Beneficial effects on inflammation-Coagulation interaction during influenza virus infection Peer-reviewed

    Hortensia Zelaya, Susana Alvarez, Haruki Kitazawa, Julio Villena

    FRONTIERS IN IMMUNOLOGY 7 (633) 1-16 2016/12

    DOI: 10.3389/fimmu.2016.00633  

    ISSN: 1664-3224

  144. Draft Genome Sequence of Lactobacillus plantarum TL2766, a Strain with the Ability To Ferment Wakame. International-journal Peer-reviewed

    Julio Villena, Lucila Saavedra, Elvira Maria Hebert, Yuki Masumizu, Nana Sato, A K M Humayun Kober, Leonardo Albarracin, Wakako Ikeda-Ohtsubo, Seiya Makino, Katsunori Kimura, Sou Ohkawara, Haruki Kitazawa

    Genome announcements 4 (6) e01328-16 2016/11/23

    DOI: 10.1128/genomeA.01328-16  

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    The genome sequence of Lactobacillus plantarum TL2766, a strain with the ability to ferment wakame (Undaria pinnatifida), is described here. The reads were assembled into contigs, with a total size of 3,310,195 bp. The genome information will be useful for further specific genetic studies of this strain and for its biotechnological applications.

  145. Immunobiotic Lactobacillus strains reduce small intestinal injury induced by intraepithelial lymphocytes after Toll-like receptor 3 activation Peer-reviewed

    Asuka Tada, Hortensia Zelaya, Patricia Clua, Susana Salva, Susana Alvarez, Haruki Kitazawa, Julio Villena

    INFLAMMATION RESEARCH 65 (10) 771-783 2016/10

    DOI: 10.1007/s00011-016-0957-7  

    ISSN: 1023-3830

    eISSN: 1420-908X

  146. Isolation of lactic acid bacteria bound to the porcine intestinal mucosa and an analysis of their moonlighting adhesins Peer-reviewed

    Kinoshita, H, S. Ohuchi, K. Arakawa, M. Watanabe, H. Kitazawa, T. Saito

    Bioscience of Microbiota, Food and Health 35 (4) 185-196 2016/10/01

    DOI: 10.12938/bmfh.16-012  

    ISSN: 2186-6953

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    The adhesion of lactic acid bacteria (LAB) to the intestinal mucosa is one of the criteria in selecting for probiotics. Eighteen LAB were isolated from porcine intestinal mucin (PIM): ten strains of Lactobacillus, six strains of Weissella, and two strains of Streptococcus. Using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) for phosphate-buffered saline (PBS) extracts from the LAB, many bands were detected in half of the samples, while a few and/or no clear bands were detected in the other half. All six of the selected LAB showed adhesion to PIM. L. johnsonii MYU 214 and MYU 221 showed adhesion at more than 10%. W. viridescens MYU 208, L. reuteri MYU 213, L. mucosae MYU 225, and L. agilis MYU 227 showed medium levels of adhesion at 5.9-8.3%. In a comprehensive analysis for the adhesins in the PBS extracts using a receptor overlay analysis, many moonlighting proteins were detected and identified as candidates for adhesins: GroEL, enolase, and elongation factor Tu in MYU 208; peptidase C1, enolase, formyl-CoA transferase, phosphoglyceromutase, triosephosphate isomerase, and phosphofructokinase in MYU 221; and DnaK, enolase, and phosphoglycerate kinase in MYU 227. These proteins in the PBS extracts, which included such things as molecular chaperones and glycolytic enzymes, may play important roles as adhesins.

  147. Mycoplasma pneumonia of swine (MPS) resistance and immune characteristics of pig lines generated by crossing an MPS pulmonary lesion selected Landrace line and a highly immune capacity selected Large White line Peer-reviewed

    Liushiqi Borjigin, Tomoyuki Shimazu, Yuki Katayama, Kouichi Watanabe, Haruki Kitazawa, Sang-gun Roh, Hisashi Aso, Kazuo Katoh, Takafumi Uchida, Yoshihito Suda, Akiko Sakuma, Mituru Nakajo, Keiichi Suzuki

    ANIMAL SCIENCE JOURNAL 87 (8) 972-981 2016/08

    DOI: 10.1111/asj.12529  

    ISSN: 1344-3941

    eISSN: 1740-0929

  148. Isolation of lactic acid bacteria from swine milk and characterization of potential probiotic strains with antagonistic effects against swine-associated gastrointestinal pathogens Peer-reviewed

    Sandra Rayen Quilodran-Vega, Julio Villena, Jose Valdebenito, Maria Jose Salas, Cristian Parra, Alvaro Ruiz, Haruki Kitazawa, Apolinaria Garcia

    CANADIAN JOURNAL OF MICROBIOLOGY 62 (6) 514-524 2016/06

    DOI: 10.1139/cjm-2015-0811  

    ISSN: 0008-4166

    eISSN: 1480-3275

  149. Cyclophilin A is a new M cell marker of bovine intestinal epithelium Peer-reviewed

    Tetsuya Hondo, Shunsuke Someya, Yuya Nagasawa, Shunsuke Terada, Hitoshi Watanabe, Xiangning Chen, Kouichi Watanabe, Shyuichi Ohwada, Haruki Kitazawa, Michael T. Rose, Tomonori Nochi, Hisashi Aso

    CELL AND TISSUE RESEARCH 364 (3) 585-597 2016/06

    DOI: 10.1007/s00441-015-2342-1  

    ISSN: 0302-766X

    eISSN: 1432-0878

  150. Immunogenic properties and mycoplasmal pneumonia of swine (MPS) lung lesions in Large White pigs selected for higher peripheral blood immune capacity Peer-reviewed

    Liushiqi Borjigin, Tomoyuki Shimazu, Yuki Katayama, Meihua Li, Takumi Satoh, Kouichi Watanabe, Haruki Kitazawa, Sang-gun Roh, Hisashi Aso, Kazuo Katoh, Takafumi Uchida, Yoshihito Suda, Akiko Sakuma, Mituru Nakajo, Keiichi Suzuki

    ANIMAL SCIENCE JOURNAL 87 (5) 638-645 2016/05

    DOI: 10.1111/asj.12471  

    ISSN: 1344-3941

    eISSN: 1740-0929

  151. Immunogenic properties of Landrace pigs selected for resistance to mycoplasma pneumonia of swine Peer-reviewed

    Liushiqi Borjigin, Tomoyuki Shimazu, Yuki Katayama, Meihua Li, Takumi Satoh, Kouichi Watanabe, Haruki Kitazawa, Sang-gun Roh, Hisashi Aso, Kazuo Katoh, Takafumi Uchida, Yoshihito Suda, Akiko Sakuma, Mituru Nakajo, Keiichi Suzuki

    ANIMAL SCIENCE JOURNAL 87 (3) 321-329 2016/03

    DOI: 10.1111/asj.12440  

    ISSN: 1344-3941

    eISSN: 1740-0929

  152. Draft genome sequence of Lactobacillus plantarum CRL1506, an immunomodulatory strain isolated from goat milk Peer-reviewed

    Saavedra, L., Hebert, E.M., Albarracin, L., Salva, S., Alvarez, S., Kitazawa, H., Villena, J.

    Genome Announcements 4 (2) e00108-16 2016/03

    DOI: 10.1128/genomeA.00108-16  

    ISSN: 2169-8287

  153. Administration of N-acetyl-D-glucosamine Thickens the Mucin Layer and Induces Flora Diversity in the Intestinal Tract of Elderly Mice Peer-reviewed

    Takashi Nakatomi*, Miku Sato, Haruki Kitazawa, Tomoya Ueno, Tadao Saito

    Int. Pro. Chem. Biol. Env. Eng. 92 (1) 1-7 2016

    DOI: 10.7763/IPCBEE  

  154. Serotonin Improves High Fat Diet Induced Obesity in Mice. International-journal Peer-reviewed

    Hitoshi Watanabe, Tatsuya Nakano, Ryo Saito, Daisuke Akasaka, Kazuki Saito, Hideki Ogasawara, Takeshi Minashima, Kohtaro Miyazawa, Takashi Kanaya, Ikuro Takakura, Nao Inoue, Ikuo Ikeda, Xiangning Chen, Masato Miyake, Haruki Kitazawa, Hitoshi Shirakawa, Kan Sato, Kohji Tahara, Yuya Nagasawa, Michael T Rose, Shyuichi Ohwada, Kouichi Watanabe, Hisashi Aso

    PloS one 11 (1) e0147143 2016

    DOI: 10.1371/journal.pone.0147143  

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    There are two independent serotonin (5-HT) systems of organization: one in the central nervous system and the other in the periphery. 5-HT affects feeding behavior and obesity in the central nervous system. On the other hand, peripheral 5-HT also may play an important role in obesity, as it has been reported that 5-HT regulates glucose and lipid metabolism. Here we show that the intraperitoneal injection of 5-HT to mice inhibits weight gain, hyperglycemia and insulin resistance and completely prevented the enlargement of intra-abdominal adipocytes without having any effect on food intake when on a high fat diet, but not on a chow diet. 5-HT increased energy expenditure, O2 consumption and CO2 production. This novel metabolic effect of peripheral 5-HT is critically related to a shift in the profile of muscle fiber type from fast/glycolytic to slow/oxidative in soleus muscle. Additionally, 5-HT dramatically induced an increase in the mRNA expression of peroxisome proliferator-activated receptor coactivator 1α (PGC-1α)-b and PGC-1α-c in soleus muscle. The elevation of these gene mRNA expressions by 5-HT injection was inhibited by treatment with 5-HT receptor (5HTR) 2A or 7 antagonists. Our results demonstrate that peripheral 5-HT may play an important role in the relief of obesity and other metabolic disorders by accelerating energy consumption in skeletal muscle.

  155. Modulation of porcine intestinal epitheliocytes immunetranscriptome response by Lactobacillus jensenii TL2937 Peer-reviewed

    H. Kobayashi, L. Albarracin, N. Sato, P. Kanmani, A. K. M. H. Kober, W. Ikeda-Ohtsubo, Y. Suda, T. Nochi, H. Aso, S. Makino, H. Kano, S. Ohkawara, T. Saito, J. Villena, H. Kitazawa

    BENEFICIAL MICROBES 7 (5) 769-782 2016

    DOI: 10.3920/BM2016.0095  

    ISSN: 1876-2883

    eISSN: 1876-2891

  156. Oral delivery of Lactococcus lactis that secretes bioactive heme oxygenase-1 alleviates development of acute colitis in mice Peer-reviewed

    Suguru Shigemori, Takafumi Watanabe, Kai Kudoh, Masaki Ihara, Shireen Nigar, Yoshinari Yamamoto, Yoshihito Suda, Takashi Sato, Haruki Kitazawa, Takeshi Shimosato

    MICROBIAL CELL FACTORIES 14 (189) 1-12 2015/11

    DOI: 10.1186/s12934-015-0378-2  

    ISSN: 1475-2859

  157. Nasal priming with immunobiotic Lactobacillus rhamnosus modulates inflammation-coagulation interactions and reduces influenza virus-associated pulmonary damage Peer-reviewed

    Hortensia Zelaya, Asuka Tada, Maria Guadalupe Vizoso-Pinto, Susana Salva, Paulraj Kanmani, Graciela Agueero, Susana Alvarez, Haruki Kitazawa, Julio Villena

    INFLAMMATION RESEARCH 64 (8) 589-602 2015/08

    DOI: 10.1007/s00011-015-0837-6  

    ISSN: 1023-3830

    eISSN: 1420-908X

  158. Extracellular cyclophilin A possesses chemotaxic activity in cattle. International-journal Peer-reviewed

    Satoru Takanashi, Tomonori Nochi, Miku Abe, Nanami Itaya, Megumi Urakawa, Katsuyoshi Sato, Tao Zhuang, Saori Umemura, Tomohito Hayashi, Yoshio Kiku, Haruki Kitazawa, Michael T Rose, Kouichi Watanabe, Hisashi Aso

    Veterinary research 46 (80) 80-80 2015/07/11

    DOI: 10.1186/s13567-015-0212-1  

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    Cyclophilin A (CyPA) was originally discovered in bovine thymocytes as a cytosolic binding protein of the immunosuppressive drug cyclosporine A. Recent studies have revealed that in mice and humans, CyPA is secreted from cells in injured or infected tissues and plays a role in recruiting inflammatory cells in those tissues. Here we found that in cattle abundant level of extracellular CyPA was observed in tissues with inflammation. To aid in investigating the role of extracellular CyPA in cattle, we generated recombinant bovine CyPA (rbCyPA) and tested its biological activity as an inflammatory mediator. When bovine peripheral blood cells were treated with rbCyPA in vitro, we observed that rbCyPA reacts with the membranous surface of granulocytes, monocytes and lymphocytes. Chemotaxis analysis showed that the granulocytes migrate toward rbCyPA and the migration is inhibited by pre-treatment with an anti-bovine CyPA antibody. These results indicate that, as for mice and humans, extracellular CyPA possesses chemotactic activity to recruit inflammatory cells (e.g., granulocytes) in cattle, and could thus be a potential therapeutic target for the treatment of inflammation.

  159. In vitro mass-screening of lactic acid bacteria as potential biosorbents of cesium and strontium ions Peer-reviewed

    Kinoshita, H, Y. Sato, F. Ohtake, M. Ishida, T. Komoda, H. Kitazawa, T. Saito, K. Kimura

    J. Microbiol. Biotech. Food Sci. 4 (5) 383-386 2015/04/01

  160. The toll-like receptor family protein RP105/MD1 complex is involved in the immunoregulatory effect of exopolysaccharides from Lactobacillus plantarum N14 Peer-reviewed

    Yo Murofushi, Julio Villena, Kyoko Morie, Paulraj Kanmani, Masanori Tohno, Tomoyuki Shimazu, Hisashi Aso, Yoshihito Suda, Kenji Hashiguchi, Tadao Saito, Haruki Kitazawa

    MOLECULAR IMMUNOLOGY 64 (1) 63-75 2015/03

    DOI: 10.1016/j.molimm.2014.10.027  

    ISSN: 0161-5890

  161. Prion protein binds to aldolase A produced by bovine intestinal M cells Peer-reviewed

    Nagasawa, Y, Y. Takahashi, W, Itani, H. Watanabe, Y. Hidaka, S. Morita, K. Suzuki, K. Watanabe, S. Ohwada, H. Kitazawa, M. Imamura, T. Yokoyama, M. Horiuchi, S. Sakaguchi, S. Mohri, M. Rose, T. Nochi, H. Aso

    Open J. Vet. Med. 5 43-60 2015/03

  162. Advanced Application of Porcine Intramuscular Adipocytes for Evaluating Anti-Adipogenic and Anti-Inflammatory Activities of Immunobiotics Peer-reviewed

    Masahiko Suzuki, Asuka Tada, Paulraj Kanmani, Hitoshi Watanabe, Hisashi Aso, Yoshihito Suda, Tomonori Nochi, Kenji Miyazawa, Kazutoyo Yoda, Fang He, Masataka Hosoda, Tadao Saito, Julio Villena, Haruki Kitazawa

    PLOS ONE 10 (3) e0119644 2015/03

    DOI: 10.1371/journal.pone.0119644  

    ISSN: 1932-6203

  163. Inhibitory/Suppressive Oligodeoxynucleotide Nanocapsules as Simple Oral Delivery Devices for Preventing Atopic Dermatitis in Mice Peer-reviewed

    Yeqin Wang, Yoshinari Yamamoto, Suguru Shigemori, Takafumi Watanabe, Kazushi Oshiro, Xinyu Wang, Pengfei Wang, Takashi Sato, Shinichi Yonekura, Sachi Tanaka, Haruki Kitazawa, Takeshi Shimosato

    MOLECULAR THERAPY 23 (2) 297-309 2015/02

    DOI: 10.1038/mt.2014.239  

    ISSN: 1525-0016

    eISSN: 1525-0024

  164. Recent Advances and Future Perspective in Microbiota and Probiotics Invited Peer-reviewed

    Haruki Kitazawa, Susana Alvarez, Alexander Suvorov, Vyacheslav Melnikov, Julio Villena, Borja Sanchez

    BIOMED RESEARCH INTERNATIONAL 2015 (Article ID 275631) 1-2 2015

    DOI: 10.1155/2015/275631  

    ISSN: 2314-6133

    eISSN: 2314-6141

  165. Effect of divalent metal cations on production of gassericin T by Lactobacillus gasseri SBT2055 Peer-reviewed

    Guo, X, H. Uenishi, Y. Kawai, N. Yasuta, G. Kasuga, S. Takezawa, Y. Seto, J. Nishimura, H. Kitazawa, T. Saito

    Milk Science 63 (3) 129-135 2014/12/20

    Publisher: Japanese Dairy Science Association

    DOI: 10.11465/milk.63.129  

    ISSN: 1343-0289

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    Gassericin T, a class IIb bacteriocin with two complementary peptides, is produced by Lactobacillus gasseri commonly found in human intestines. L. gasseri strains containing bacteriocinogenic LA158 isolated from a human infant in our laboratory grew well in modified milk-based media, but the gassericin T production by LA158 was inhibited by high concentrations of divalent metal cations in the milk-based media. In this study, it was confirmed that gassericin T production by L. gasseri SBT2055, which has an antiobesity effect, was specifically inhibited in MRS broth by adding divalent metal cations (Mg2+, Ca2+, Mn2+, Fe2+, and Zn2+) depending on the concentration of cations, although the effective concentrations were different from those in LA158 tested (Mg2+ and Ca2+). The addition of 200 mM divalent metal cations resulted in the almost complete disappearance of gassericin T despite a good cell growth. Furthermore, gassericin T production was restored by adding trisodium citrate dihydrate (TSC), which is a food-grade chelator of divalent cations. These findings may contribute to the effective use of bacteriocinogenic L. gasseri strains as probiotics for yogurt manufacture without the inhibition of growth of starter strain(s).

  166. Diversity of microflora in colonic mucus from severe ulcerative colitis patients analyzed by terminal restriction fragment length polymorphism and clone libraries of bacterial 16S rRNA gene sequences Peer-reviewed

    Huang, I-N, Y. Sato, M. Sakamoto, M. Ohkuma, S. Ohnuma, T. Naitoh, C. Shibata, A. Horii, J. Nishimura, H. Kitazawa, T. Saito

    Adv. Microbiol. 4 (13) 857-870 2014/10/08

  167. Immunobiotic Lactobacillus jensenii as immune-health promoting factor to improve growth performance and productivity in post-weaning pigs Peer-reviewed

    Yoshihito Suda, Julio Villena, Yu Takahashi, Shoichi Hosoya, Yohsuke Tomosada, Kohichiro Tsukida, Tomoyuki Shimazu, Hisashi Aso, Masanori Tohno, Mitsuharu Ishida, Seiya Makino, Shuji Ikegami, Haruki Kitazawa

    BMC IMMUNOLOGY 15 (24) 1-18 2014/06

    DOI: 10.1186/1471-2172-15-24  

    ISSN: 1471-2172

  168. Regulation of Toll-like receptors-mediated inflammation by immunobiotics in bovine intestinal epitheliocytes: Role of signalling pathways and negative regulators Peer-reviewed

    Villena, J., Aso, H., Kitazawa, H.

    Frontiers in Immunology 5 (AUG) 1-10 2014/05/19

    DOI: 10.3389/fimmu.2014.00421  

    ISSN: 1664-3224

  169. Modulation of respiratory TR3-anti-viral at response by probiotic microorganisms: lessons learned from Lactobacillus rhamnosus CRL1505

    Haruki Kitazawa, Julio Villena

    FRONTIERS IN IMMUNOLOGY 5 (201) 1-15 2014/05

    DOI: 10.3389/fimmu.2014.00201  

    ISSN: 1664-3224

  170. Immunobiotic Lactobacillus rhamnosus strains differentially modulate antiviral immune response in porcine intestinal epithelial and antigen presenting cells Peer-reviewed

    Julio Villena, Eriko Chiba, Maria Guadalupe Vizoso-Pinto, Yohsuke Tomosada, Takuya Takahashi, Takamasa Ishizuka, Hisashi Aso, Susana Salva, Susana Alvarez, Haruki Kitazawa

    BMC MICROBIOLOGY 14 (126) 1-14 2014/05

    DOI: 10.1186/1471-2180-14-126  

    ISSN: 1471-2180

  171. Quantitative microbiological evaluation of SalmonellaTyphimurium shed in diarrhea, loose, and normal stools of infected pigs Peer-reviewed

    Tanaka, T, Y. Imai, N. Kumagae, T. Sasaki, N. Ochiai, K. Uruno, H. Kitazawa, T. Saito, S. Sato

    Open J. Vet. Med. 4 (4) 58-66 2014/04/29

  172. Immunological characteristics of peripheral blood leukocytes in swine selected for resistance to Mycoplasmal pneumonia Peer-reviewed

    Shimazu T, Borjigin L, Katayama Y, Li M, Satoh T, Watanabe K, Kitazawa H, Roh SG, Aso H, Kazuo K, Suda Y, Sakuma A, Nakajo M, Suzuki K

    Animal Science Journal 85 (4) 365373 2014/04

  173. Genetic selection for resistance to mycoplasmal pneumonia of swine (MPS) in the Landrace line influences the expression of soluble factors in blood after MPS vaccine sensitization. Peer-reviewed

    Tomoyuki Shimazu, Liushiqi Borjigin, Yuki Katayama, Meihua Li, Takumi Satoh, Kouichi Watanabe, Haruki Kitazawa, Sang-gun Roh, Hisashi Aso, Katoh Kazuo, Yoshihito Suda, Akiko Sakuma, Mituru Nakajo, Keiichi Suzuki

    ANIMAL SCIENCE JOURNAL 85 (4) 365-373 2014/04

    DOI: 10.1111/asj.12158  

    ISSN: 1344-3941

    eISSN: 1740-0929

  174. Immunobiotic lactobacilli reduce viral-associated pulmonary damage through the modulation of inflammation-coagulation interactions Peer-reviewed

    Hortensia Zelaya, Kohichiro Tsukida, Eriko Chiba, Gabriela Marranzino, Susana Alvarez, Haruki Kitazawa, Graciela Agueero, Julio Villena

    INTERNATIONAL IMMUNOPHARMACOLOGY 19 (1) 161-173 2014/03

    DOI: 10.1016/j.intimp.2013.12.020  

    ISSN: 1567-5769

    eISSN: 1878-1705

  175. Evaluation of the immunoregulatory capacities of feed microbial materials in porcine intestinal immune and epithelial cells Peer-reviewed

    Kumagae, N, J. Villena, Y. Tomosada, H. Kobayashi, P. Kanmani, H. Aso, T. Sasaki, M. Yoshida, H. Tanabe, I. Shibata, T. Saito, H. Kitazawa

    Open J. Vet. Med. 4 (3) 15-28 2014/03

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    国際共著論文

  176. Effect of Peripheral 5-HT on Glucose and Lipid Metabolism in Wether Sheep Peer-reviewed

    Hitoshi Watanabe, Ryo Saito, Tatsuya Nakano, Hideyuki Takahashi, Yu Takahashi, Keisuke Sumiyoshi, Katsuyoshi Sato, Xiangning Chen, Natsumi Okada, Shunsuke Iwasaki, Dian W. Harjanti, Natsumi Sekiguchi, Hiroaki Sano, Haruki Kitazawa, Michael T. Rose, Shyuichi Ohwada, Kouichi Watanabe, Hisashi Aso

    PLOS ONE 9 (2) e88058 2014/02

    DOI: 10.1371/journal.pone.0088058  

    ISSN: 1932-6203

  177. Modulation of Intestinal TLR4-Inflammatory Signaling Pathways by Probiotic Microorganisms: Lessons Learned from Lactobacillus jensenii TL2937 International-journal International-coauthorship

    Julio Villena*, Haruki Kitazawa*

    Frontiers in Immunology 4 (512) 1-12 2014

    Publisher: Frontiers Media SA

    DOI: 10.3389/fimmu.2013.00512  

    eISSN: 1664-3224

  178. Bifidobacterium breve MCC-117 Induces Tolerance in Porcine Intestinal Epithelial Cells: Study of the Mechanisms Involved in the Immunoregulatory Effect. Peer-reviewed

    Kozue Murata, Yohsuke Tomosada, Julio Villena, Eriko Chiba, Tomoyuki Shimazu, Hisashi Aso, Noriyuki Iwabuchi, Jin-Zhong Xiao, Tadao Saito, Haruki Kitazawa

    Bioscience of microbiota, food and health 33 (1) 1-10 2014

    DOI: 10.12938/bmfh.33.1  

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    Bifidobacterium breve MCC-117 is able to significantly reduce the expression of inflammatory cytokines in porcine intestinal epithelial (PIE) cells and to improve IL-10 levels in CD4(+)CD25(high) Foxp3(+) lymphocytes in response to heat-stable enterotoxigenic Escherichia coli (ETEC) pathogen-associated molecular patterns (PAMPs), while the immunoregulatory effect of B. adolescentis ATCC15705 was significantly lower than that observed for the MCC-117 strain. Considering the different capacities of the two bifidobacterium strains to activate toll-like receptor (TLR)-2 and their differential immunoregulatory activities in PIE and immune cells, we hypothesized that comparative studies with both strains could provide important information regarding the molecular mechanism(s) involved in the anti-inflammatory activity of bifidobacteria. In this work, we demonstrated that the anti-inflammatory effect of B. breve MCC-117 was achieved by a complex interaction of multiple negative regulators of TLRs as well as inhibition of multiple signaling pathways. We showed that B. breve MCC-117 reduced heat-stable ETEC PAMP-induced NF-κB, p38 MAPK and PI3 K activation and expression of pro-inflammatory cytokines in PIE cells. In addition, we demonstrated that B. breve MCC-117 may activate TLR2 synergistically and cooperatively with one or more other pattern recognition receptors (PRRs), and that interactions may result in a coordinated sum of signals that induce the upregulation of A20, Bcl-3, Tollip and SIGIRR. Upregulation of these negative regulators could have an important physiological impact on maintaining or reestablishing homeostatic TLR signals in PIE cells. Therefore, in the present study, we gained insight into the molecular mechanisms involved in the immunoregulatory effect of B. breve MCC-117.

  179. Advanced application of porcine intestinal epithelial cells for the selection of immunobiotics modulating toll-like receptor 3-mediated inflammation. International-journal Peer-reviewed

    Shoichi Hosoya, Julio Villena, Eriko Chiba, Tomoyuki Shimazu, Yoshihito Suda, Hisashi Aso, Tadao Saito, Haruki Kitazawa

    Journal of microbiology, immunology, and infection = Wei mian yu gan ran za zhi 46 (6) 474-81 2013/12

    DOI: 10.1016/j.jmii.2012.04.005  

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    PURPOSE: In this study, we aimed to characterize toll-like receptor (TLR)-3-mediated inflammatory immune response in porcine intestinal epithelial (PIE) cells and in PIE-immune cell co-cultures and, to evaluate if these in vitro systems are useful for selecting immunomodulatory lactic acid bacteria. RESULTS: We demonstrated that these systems are valuable tools for the in vitro study of the inflammatory response triggered by TLR3 in intestinal epithelial cells (IECs) and of the interaction between IECs and immune cells. In addition, we showed that PIE cells could be used for the selection of immunobiotic lactobacilli strains with anti-inflammatory activities. We found that Lactobacillus casei MEP221114 is an immunobiotic candidate for modulation of TLR3-mediated inflammatory responses. CONCLUSION: The present study deepened our understanding of the mechanisms of immunobiotic action by demonstrating that the interaction between some lactobacilli strains and IECs can up-regulate the mRNA expression of TLR negative regulators and that this effect could help to regulate the production of inflammatory mediators during the generation of a TLR3-mediated immune response.

  180. Immunological characterization of peripheral blood leukocytes using vaccine for mycoplasmal pneumonia of swine (MPS) in swine line selected for resistance to MPS Peer-reviewed

    Tomoyuki Shimazu, Liushiqi Borjigin, Yuki Katayama, Meihua Li, Takumi Satoh, Kouichi Watanabe, Haruki Kitazawa, Sang-gun Roh, Hisashi Aso, Kazuo Katoh, Yoshihito Suda, Akiko Sakuma, Mituru Nakajo, Keiichi Suzuki

    ANIMAL SCIENCE JOURNAL 84 (10) 683-692 2013/10

    DOI: 10.1111/asj.12058  

    ISSN: 1344-3941

  181. Modulation of Mucosal Antiviral Immune Response at the Female Genital Tract by Immunobiotic Lactic Acid Bacteria Peer-reviewed

    Vizoso-­Pinto MG, J. Villena, V. Rodriguez, H. Kitazawa, S, Salva, S. Alvarez

    J. Immunol. Tech. Infect. Dis. 2 (4) 2013/10

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    国際共著論文

  182. Immunobiotic Lactobacillus rhamnosus improves resistance of infant mice against respiratory syncytial virus infection Peer-reviewed

    Eriko Chiba, Yohsuke Tomosada, Maria Guadalupe Vizoso-Pinto, Susana Salva, Takuya Takahashi, Kohichiro Tsukida, Haruki Kitazawa, Susana Alvarez, Julio Villena

    INTERNATIONAL IMMUNOPHARMACOLOGY 17 (2) 373-382 2013/10

    DOI: 10.1016/j.intimp.2013.06.024  

    ISSN: 1567-5769

  183. Biosorption of heavy metals by lactic acid bacteria and identification of mercury binding protein Peer-reviewed

    Hideki Kinoshita, Yui Sohma, Fumika Ohtake, Mitsuharu Ishida, Yasushi Kawai, Haruki Kitazawa, Tadao Saito, Kazuhiko Kimura

    RESEARCH IN MICROBIOLOGY 164 (7) 701-709 2013/09

    DOI: 10.1016/j.resmic.2013.04.004  

    ISSN: 0923-2508

  184. Nasally administered Lactobacillus rhamnosus strains differentially modulate respiratory antiviral immune responses and induce protection against respiratory syncytial virus infection Peer-reviewed

    Yohsuke Tomosada, Eriko Chiba, Hortensia Zelaya, Takuya Takahashi, Kohichiro Tsukida, Haruki Kitazawa, Susana Alvarez, Julio Villena

    BMC IMMUNOLOGY 14 (40) 1-16 2013/08

    DOI: 10.1186/1471-2172-14-40  

    ISSN: 1471-2172

  185. Bifidobacteria upregulate expression of toll-like receptor negative regulators counteracting enterotoxigenic Escherichia coli mediated inflammation in bovine intestinal epitheliocytes Peer-reviewed

    Murata, K, J. Villena, Y. Tomosada, R. Hara, E. Chiba, T. Shimazu, H. Aso, Y. Suda, N. Iwabuchi, J.-z. Xiao, T. Saito, H. Kitazawa

    Open J. Vet. Med. 3 (2) 143-155 2013/06

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    国際共著論文

  186. Advanced application of bovine intestinal epithelial cell line for evaluating regulatory effect of lactobacilli against heat-killed enterotoxigenic Escherichia coli-mediated inflammation. International-journal Peer-reviewed

    Naoya Takanashi, Yohsuke Tomosada, Julio Villena, Kozue Murata, Takuya Takahashi, Eriko Chiba, Masanori Tohno, Tomoyuki Shimazu, Hisashi Aso, Yoshihito Suda, Shuji Ikegami, Hiroyuki Itoh, Yasushi Kawai, Tadao Saito, Susana Alvarez, Haruki Kitazawa

    BMC microbiology 13 (1) 54-54 2013/03/07

    DOI: 10.1186/1471-2180-13-54  

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    BACKGROUND: Previously, a bovine intestinal epithelial cell line (BIE cells) was successfully established. This work hypothesized that BIE cells are useful in vitro model system for the study of interactions of microbial- or pathogen-associated molecular patterns (MAMPs or PAMPs) with bovine intestinal epithelial cells and for the selection of immunoregulatory lactic acid bacteria (LAB). RESULTS: All toll-like receptor (TLR) genes were expressed in BIE cells, being TLR4 one of the most strongly expressed. We demonstrated that heat-stable PAMPs of enterotoxigenic Escherichia coli (ETEC) significantly enhanced the production of IL-6, IL-8, IL-1α and MCP-1 in BIE cells by activating both NF-κB and MAPK pathways. We evaluated the capacity of several lactobacilli strains to modulate heat-stable ETEC PAMPs-mediated inflammatory response in BIE cells. Among these strains evaluated, Lactobacillus casei OLL2768 attenuated heat-stable ETEC PAMPs-induced pro-inflammatory response by inhibiting NF-κB and p38 signaling pathways in BIE cells. Moreover, L. casei OLL2768 negatively regulated TLR4 signaling in BIE cells by up-regulating Toll interacting protein (Tollip) and B-cell lymphoma 3-encoded protein (Bcl-3). CONCLUSIONS: BIE cells are suitable for the selection of immunoregulatory LAB and for studying the mechanisms involved in the protective activity of immunobiotics against pathogen-induced inflammatory damage. In addition, we showed that L. casei OLL2768 functionally modulate the bovine intestinal epithelium by attenuating heat-stable ETEC PAMPs-induced inflammation. Therefore L. casei OLL2768 is a good candidate for in vivo studying the protective effect of LAB against intestinal inflammatory damage induced by ETEC infection or heat-stable ETEC PAMPs challenge in the bovine host.

  187. New screening methods for probiotics with adhesion properties to sialic acid and sulphate residues in human colonic mucin using the Biacore assay Peer-reviewed

    I-N. Huang, T. Okawara, M. Watanabe, Y. Kawai, H. Kitazawa, S. Ohnuma, C. Shibata, A. Horii, K. Kimura, N. Taketomo, J. -Z. Xiao, K. Iwatsuki, T. Saito

    JOURNAL OF APPLIED MICROBIOLOGY 114 (3) 854-860 2013/03

    DOI: 10.1111/jam.12063  

    ISSN: 1364-5072

  188. Food preservative potential of gassericin A-containing concentrate prepared from cheese whey culture supernatant of Lactobacillus gasseri LA39 Peer-reviewed

    Kiyoshi Nakamura, Kensuke Arakawa, Yasushi Kawai, Narimi Yasuta, Takahiro Chujo, Masamichi Watanabe, Hiroyuki Iioka, Masashi Tanioka, Junko Nishimura, Haruki Kitazawa, Koichi Tsurumi, Tadao Saito

    Animal Science Journal 84 (2) 144-149 2013/02

    DOI: 10.1111/j.1740-0929.2012.01048.x  

    ISSN: 1344-3941 1740-0929

  189. Expression of myostatin in neural cells of the olfactory system Peer-reviewed

    Shunsuke Iwasaki, Masato Miyake, Hitoshi Watanabe, Eri Kitagawa, Kouichi Watanabe, Shyuichi Ohwada, Haruki Kitazawa, Michael T. Rose, Hisashi Aso

    Molecular Neurobiology 47 (1) 1-8 2013

    Publisher: Humana Press Inc.

    DOI: 10.1007/s12035-012-8342-1  

    ISSN: 1559-1182 0893-7648

  190. Class I/II hybrid inhibitory oligodeoxynucleotide exerts Th1 and Th2 double immunosuppression Peer-reviewed

    Yusuke Ito, Suguru Shigemori, Takashi Sato, Tomoyuki Shimazu, Konomi Hatano, Hajime Otani, Haruki Kitazawa, Takeshi Shimosato

    FEBS OPEN BIO 3 41-45 2013

    DOI: 10.1016/j.fob.2012.11.002  

    ISSN: 2211-5463

  191. Proposal of screening method for intestinal mucus adhesive lactobacilli using the enzymatic activity of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) Peer-reviewed

    Hideki Kinoshita, Shun Imoto, Yoshihito Suda, Mitsuharu Ishida, Masamichi Watanabe, Yasushi Kawai, Haruki Kitazawa, Koh Miura, Akira Horii, Tadao Saito

    ANIMAL SCIENCE JOURNAL 84 (2) 150-158 2013

    DOI: 10.1111/j.1740-0929.2012.01054.x  

    ISSN: 1344-3941

  192. Immunoregulatory effect of bifidobacteria strains in porcine intestinal epithelial cells through modulation of ubiquitin-editing enzyme A20 expression. International-journal Peer-reviewed

    Yohsuke Tomosada, Julio Villena, Kozue Murata, Eriko Chiba, Tomoyuki Shimazu, Hisashi Aso, Noriyuki Iwabuchi, Jin-zhong Xiao, Tadao Saito, Haruki Kitazawa

    PloS one 8 (3) e59259 2013

    DOI: 10.1371/journal.pone.0059259  

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    BACKGROUND: We previously showed that evaluation of anti-inflammatory activities of lactic acid bacteria in porcine intestinal epithelial (PIE) cells is useful for selecting potentially immunobiotic strains. OBJECTIVE: The aims of the present study were: i) to select potentially immunomodulatory bifidobacteria that beneficially modulate the Toll-like receptor (TLR)-4-triggered inflammatory response in PIE cells and; ii) to gain insight into the molecular mechanisms involved in the anti-inflammatory effect of immunobiotics by evaluating the role of TLR2 and TLR negative regulators in the modulation of proinflammatory cytokine production and activation of mitogen-activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) pathways in PIE cells. RESULTS: Bifidobacteria longum BB536 and B. breve M-16V strains significantly downregulated levels of interleukin (IL)-8, monocyte chemotactic protein (MCP)-1 and IL-6 in PIE cells challenged with heat-killed enterotoxigenic Escherichia coli. Moreover, BB536 and M-16V strains attenuated the proinflammatory response by modulating the NF-κB and MAPK pathways. In addition, our findings provide evidence for a key role for the ubiquitin-editing enzyme A20 in the anti-inflammatory effect of immunobiotic bifidobacteria in PIE cells. CONCLUSIONS: We show new data regarding the mechanism involved in the anti-inflammatory effect of immunobiotics. Several strains with immunoregulatory capabilities used a common mechanism to induce tolerance in PIE cells. Immunoregulatory strains interacted with TLR2, upregulated the expression of A20 in PIE cells, and beneficially modulated the subsequent TLR4 activation by reducing the activation of MAPK and NF-κB pathways and the production of proinflammatory cytokines. We also show that the combination of TLR2 activation and A20 induction can be used as biomarkers to screen and select potential immunoregulatory bifidobacteria strains.

  193. Effect of Myostatin on Chemokine Expression in Regenerating Skeletal Muscle Cells Peer-reviewed

    Shunsuke Iwasaki, Masato Miyak, Shinichiro Hayashi, Hitoshi Watanabe, Yuya Nagasawa, Shunsuke Terada, Kouichi Watanabe, Shyuichi Ohwada, Haruki Kitazawa, Michael T. Rose, Hisashi Aso

    CELLS TISSUES ORGANS 198 (1) 66-74 2013

    DOI: 10.1159/000351462  

    ISSN: 1422-6405

  194. A newly established bovine intestinal epithelial cell line is effective for in vitro screening of potential antiviral immunobiotic microorganisms for cattle Peer-reviewed

    Eriko Chiba, Julio Villena, Shoichi Hosoya, Naoya Takanashi, Tomoyuki Shimazu, Hisashi Aso, Masanori Tohno, Yoshihito Suda, Yasushi Kawai, Tadao Saito, Kenji Miyazawa, Fang He, Haruki Kitazawa

    RESEARCH IN VETERINARY SCIENCE 93 (2) 688-694 2012/10

    DOI: 10.1016/j.rvsc.2011.10.002  

    ISSN: 0034-5288

  195. An Adhesin-Like Protein, Lam29, from Lactobacillus mucosae ME-340 Binds to Histone H3 and Blood Group Antigens in Human Colonic Mucus Peer-reviewed

    Masamichi Watanabe, Hideki Kinoshita, I-Nung Huang, Kei Eguchi, Takuya Tsurumi, Yasushi Kawai, Haruki Kitazawa, Katsunori Kimura, Naoki Taketomo, Daisuke Kikuchi, Tomohiko Sase, Koh Miura, Hitoshi Ogawa, Chikashi Shibata, Akira Horii, Tadao Saito

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 76 (9) 1655-1660 2012/09

    DOI: 10.1271/bbb.120150  

    ISSN: 0916-8451

    eISSN: 1347-6947

  196. Orally administered Lactobacillus rhamnosus modulates the respiratory immune response triggered by the viral pathogen-associated molecular pattern poly(I:C) Peer-reviewed

    Julio Villena, Eriko Chiba, Yohsuke Tomosada, Susana Salva, Gabriela Marranzino, Haruki Kitazawa, Susana Alvarez

    BMC IMMUNOLOGY 13 (53) 1-15 2012/09

    DOI: 10.1186/1471-2172-13-53  

    ISSN: 1471-2172

  197. Advanced application of porcine intestinal epithelial cells for the selection of immunobiotics modulating toll-like receptor 3-mediated inflammation. Peer-reviewed

    Hosoya S, Villena J, Chiba E, Shimazu T, Suda Y, Aso H, Saito T, Kitazawa H

    Journal of Microbiology, Immunology and Infection 20 1-8 2012/07/21

  198. Immunobiotic Lactobacillus jensenii Modulates the Toll-Like Receptor 4-Induced Inflammatory Response via Negative Regulation in Porcine Antigen-Presenting Cells Peer-reviewed

    Julio Villena, Rie Suzuki, Hitomi Fujie, Eriko Chiba, Takuya Takahashi, Yohsuke Tomosada, Tomoyuki Shimazu, Hisashi Aso, Shyuichi Ohwada, Yoshihito Suda, Shuji Ikegami, Hiroyuki Itoh, Susana Alvarez, Tadao Saito, Haruki Kitazawa

    CLINICAL AND VACCINE IMMUNOLOGY 19 (7) 1038-1053 2012/07

    DOI: 10.1128/CVI.00199-12  

    ISSN: 1556-6811

  199. A Distinct Regulatory Role of Th17 Cytokines IL-17A and IL-17F in Chemokine Secretion from Lung Microvascular Endothelial Cells Peer-reviewed

    Hitomi Fujie, Kaijun Niu, Michiru Ohba, Yoshihisa Tomioka, Haruki Kitazawa, Kengo Nagashima, Takashi Ohrui, Muneo Numasaki

    INFLAMMATION 35 (3) 1119-1131 2012/06

    DOI: 10.1007/s10753-011-9419-0  

    ISSN: 0360-3997

  200. Porcine toll-like receptors and their crosstalk with immunobiotics: Impact in the regulation of gut inflammatory immunity

    Villena, J., Aso, H., Alvarez, S., Kitazawa, H.

    Probiotics: Sources, Types and Health Benefits 2012

  201. Purification and characterization of two phospho-β-galactosidases, LacG1 and LacG2, from lactobacillus gasseri ATCC33323 T Peer-reviewed

    Hiroyuki Honda, Seiji Nagaoka, Yasushi Kawai, Robèr Kemperman, Jan Kok, Yukiko Yamazaki, Yoshio Tateno, Haruki Kitazawa, Tadao Saito

    Journal of General and Applied Microbiology 58 (1) 11-17 2012

    DOI: 10.2323/jgam.58.11  

    ISSN: 0022-1260 1349-8037

  202. Immunobiotic Lactobacillus jensenii Elicits Anti-Inflammatory Activity in Porcine Intestinal Epithelial Cells by Modulating Negative Regulators of the Toll-Like Receptor Signaling Pathway Peer-reviewed

    Tomoyuki Shimazu, Julio Villena, Masanori Tohno, Hitomi Fujie, Shoichi Hosoya, Takeshi Shimosato, Hisashi Aso, Yoshihito Suda, Yasushi Kawai, Tadao Saito, Seiya Makino, Shuji Ikegami, Hiroyuki Itoh, Haruki Kitazawa

    INFECTION AND IMMUNITY 80 (1) 276-288 2012/01

    DOI: 10.1128/IAI.05729-11  

    ISSN: 0019-9567

  203. Immunobiotic Lactobacillus strains augment NLRP3 expression in newborn and adult porcine gut-associated lymphoid tissues Peer-reviewed

    Masanori Tohno, Takeshi Shimosato, Hisashi Aso, Haruki Kitazawa

    VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY 144 (3-4) 410-416 2011/12

    DOI: 10.1016/j.vetimm.2011.09.010  

    ISSN: 0165-2427

  204. Immunobiotic lactic acid bacteria beneficially regulate immune response triggered by poly(I:C) in porcine intestinal epithelial cells Peer-reviewed

    Shoichi Hosoya, Julio Villena, Tomoyuki Shimazu, Masanori Tohno, Hitomi Fujie, Eriko Chiba, Takeshi Shimosato, Hisashi Aso, Yoshihito Suda, Yasushi Kawai, Tadao Saito, Susana Alvarez, Shuji Ikegami, Hiroyuki Itoh, Haruki Kitazawa

    VETERINARY RESEARCH 42 (111) 1-13 2011/11

    DOI: 10.1186/1297-9716-42-111  

    ISSN: 0928-4249

    eISSN: 1297-9716

  205. Toll-like receptor-2-activating bifidobacteria strains differentially regulate inflammatory cytokines in the porcine intestinal epithelial cell culture system: finding new anti-inflammatory immunobiotics Peer-reviewed

    Hitomi Fujie, Julio Villena, Masanori Tohno, Kyoko Morie, Tomoyuki Shimazu, Hisashi Aso, Yoshihito Suda, Takeshi Shimosato, Noriyuki Iwabuchi, Jin-Zhong Xiao, Tomoko Yaeshima, Keiji Iwatsuki, Tadao Saito, Muneo Numasaki, Haruki Kitazawa

    FEMS IMMUNOLOGY AND MEDICAL MICROBIOLOGY 63 (1) 129-139 2011/10

    DOI: 10.1111/j.1574-695X.2011.00837.x  

    ISSN: 0928-8244

  206. Molecular cloning, tissue expression, and subcellular localization of porcine peptidoglycan recognition proteins 3 and 4 Peer-reviewed

    Wataru Ueda, Masanori Tohno, Tomoyuki Shimazu, Hitomi Fujie, Hisashi Aso, Yasushi Kawai, Muneo Numasaki, Tadao Saito, Haruki Kitazawa

    VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY 143 (1-2) 148-154 2011/09

    DOI: 10.1016/j.vetimm.2011.05.026  

    ISSN: 0165-2427

    eISSN: 1873-2534

  207. Lactobacillus plantarum No.14 株が生産する 菌体外多糖の化学的性状と免疫活性 Peer-reviewed

    橋口健司, 長田裕子, 吉田睦子, 室伏 陽, 北澤春樹

    日本乳酸菌学会誌 22 (2) 100-105 2011/07/01

    DOI: 10.4109/jslab.22.100  

    ISSN: 1343-327X

  208. Cytokeratin 18 is a specific marker of bovine intestinal M cell. International-journal Peer-reviewed

    Tetsuya Hondo, Takashi Kanaya, Ikuro Takakura, Hitoshi Watanabe, Yu Takahashi, Yuya Nagasawa, Shunsuke Terada, Shyuichi Ohwada, Kouichi Watanabe, Haruki Kitazawa, Michael T Rose, Takahiro Yamaguchi, Hisashi Aso

    American journal of physiology. Gastrointestinal and liver physiology 300 (3) G442-53-G453 2011/03

    DOI: 10.1152/ajpgi.00345.2010  

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    Microfold (M) cells in the follicle-associated epithelium (FAE) of Peyer's patches have an important role in mucosal immune responses. A primary difficulty for investigations of bovine M cells is the lack of a specific molecular marker. To identify such a marker, we investigated the expression of several kinds of intermediate filament proteins using calf Peyer's patches. The expression patterns of cytokeratin (CK) 18 in jejunal and ileal FAE were very similar to the localization pattern of M cells recognized by scanning electron microscopy. Mirror sections revealed that jejunal CK18-positive cells had irregular and sparse microvilli, as well as pocket-like structures containing lymphocytes, typical morphological characteristic of M cells. However, CK18-negative cells had regular and dense microvilli on their surface, typical of the morphology of enterocytes. In contrast, CK20 immunoreactivity was detected in almost all villous epithelial cells and CK18-negative cells in the FAE. CK18-positive proliferating transit-amplifying cells in the crypt exchanged CK18 for CK20 above the mouth of the crypt and after moving to the villi; however, CK18-positive M cells in the crypt continued their expression of CK18 during movement to the FAE region. Terminal deoxynucleotidyl-transferase-mediated deoxyuridine-triphosphate-biotin nick-end labeling-positive apoptotic cells were specifically detected at the apical region of villi and FAE in the jejunum and ileum, and all were also stained for CK20. These data indicate that CK18 may be a molecular marker for bovine M cells in FAE and that M cells may transdifferentiate to CK20-positive enterocytes and die by apoptosis in the apex of the FAE.

  209. Transcytosis of murine-adapted bovine spongiform encephalopathy agents in an in vitro bovine M cell model. International-journal Peer-reviewed

    Kohtaro Miyazawa, Takashi Kanaya, Ikuro Takakura, Sachi Tanaka, Tetsuya Hondo, Hitoshi Watanabe, Michael T Rose, Haruki Kitazawa, Takahiro Yamaguchi, Shigeru Katamine, Noriyuki Nishida, Hisashi Aso

    Journal of virology 84 (23) 12285-91 2010/12

    DOI: 10.1128/JVI.00969-10  

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    Transmissible spongiform encephalopathies (TSE), including bovine spongiform encephalopathy (BSE), are fatal neurodegenerative disorders in humans and animals. BSE appears to have spread to cattle through the consumption of feed contaminated with BSE/scrapie agents. In the case of an oral infection, the agents have to cross the gut-epithelial barrier. We recently established a bovine intestinal epithelial cell line (BIE cells) that can differentiate into the M cell type in vitro after lymphocytic stimulation (K. Miyazawa, T. Hondo, T. Kanaya, S. Tanaka, I. Takakura, W. Itani, M. T. Rose, H. Kitazawa, T. Yamaguchi, and H. Aso, Histochem. Cell Biol. 133:125-134, 2010). In this study, we evaluated the role of M cells in the intestinal invasion of the murine-adapted BSE (mBSE) agent using our in vitro bovine intestinal epithelial model. We demonstrate here that M cell-differentiated BIE cells are able to transport the mBSE agent without inactivation at least 30-fold more efficiently than undifferentiated BIE cells in our in vitro model. As M cells in the follicle-associated epithelium are known to have a high ability to transport a variety of macromolecules, viruses, and bacteria from gut lumen to mucosal immune cells, our results indicate the possibility that bovine M cells are able to deliver agents of TSE, not just the mBSE agent.

  210. Identification of a new adhesin-like protein from Lactobacillus mucosae ME-340 with specific affinity to the human blood group A and B antigens Peer-reviewed

    M. Watanabe, H. Kinoshita, M. Nitta, R. Yukishita, Y. Kawai, K. Kimura, N. Taketomo, Y. Yamazaki, Y. Tateno, K. Miura, A. Horii, H. Kitazawa, T. Saito

    JOURNAL OF APPLIED MICROBIOLOGY 109 (3) 927-935 2010/09

    DOI: 10.1111/j.1365-2672.2010.04719.x  

    ISSN: 1364-5072

  211. Improvements in Seasonal Allergic Disease with Lactobacillus plantarum No. 14 Peer-reviewed

    Yuko Nagata, Mutsuko Yoshida, Haruki Kitazawa, Eiji Araki, Toshiharu Gomyo

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 74 (9) 1869-1877 2010/09

    DOI: 10.1271/bbb.100270  

    ISSN: 0916-8451

    eISSN: 1347-6947

  212. Development of Immunobiotic Evaluation System for Functional Foods and Feeds Invited

    Kitazawa, H, M. Tohno, T. Shimosato, Y. Suda, H. Aso

    Proceedings of the 14th AAAP Animal Science Congress, Pingtung, Taiwan, ROC, Aug. 23-27. Vol.1 Plenary Sessions 524-529 2010/08/23

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    第14回AAAP国際会議におけるPlenary Sessionの招待講演に関する総説

  213. HPLC purification and re-evaluation of chemical identity of two circular bacteriocins, gassericin A and reutericin 6 Peer-reviewed

    K. Arakawa, Y. Kawai, Y. Ito, K. Nakamura, T. Chujo, J. Nishimura, H. Kitazawa, T. Saito

    LETTERS IN APPLIED MICROBIOLOGY 50 (4) 406-411 2010/04

    DOI: 10.1111/j.1472-765X.2010.02810.x  

    ISSN: 0266-8254

  214. CpG oligodeoxynucleotides induce strong up-regulation of interleukin 33 via Toll-like receptor 9 Peer-reviewed

    Takeshi Shimosato, Megumi Fujimoto, Masanori Tohno, Takashi Sato, Mariko Tateo, Hajime Otani, Haruki Kitazawa

    BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS 394 (1) 81-86 2010/03

    DOI: 10.1016/j.bbrc.2010.02.110  

    ISSN: 0006-291X

  215. Phenotypes and distributions of dendritic cells in peripheral blood and tissues in cattle

    Miyazawa, K., Kanaya, T., Tanaka, S., Kitazawa, H., Rose, M.T., Yamaguchi, T., Aso, H.

    Dendritic Cells: Types, Life Cycles and Biological Functions 2010

  216. Phenotypes and distributions of dendritic cells in peripheral blood and tissues in cattle

    Miyazawa, K., Kanaya, T., Tanaka, S., Kitazawa, H., Rose, M.T., Yamaguchi, T., Aso, H.

    Dendritic Cells: Types, Life Cycles and Biological Functions 2010

  217. Oral Administration of Phosphorylated Dextran Regulates Immune Response in Ovalbumin-Immunized Mice Peer-reviewed

    Chiho Nagasawa, Junko Nishimura-Uemura, Masanori Tohno, Takeshi Shimosato, Yasushi Kawai, Shuji Ikegami, Munehiro Oda, Tadao Saito, Haruki Kitazawa

    ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 23 (1) 106-115 2010/01

    ISSN: 1011-2367

  218. Characterization of newly established bovine intestinal epithelial cell line. International-journal Peer-reviewed

    Kohtaro Miyazawa, Tetsuya Hondo, Takashi Kanaya, Sachi Tanaka, Ikuro Takakura, Wataru Itani, Michael T Rose, Haruki Kitazawa, Takahiro Yamaguchi, Hisashi Aso

    Histochemistry and cell biology 133 (1) 125-34 2010/01

    DOI: 10.1007/s00418-009-0648-3  

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    Membranous epithelial cells (M cells) of the follicle-associated epithelium in Peyer's patches have a high capacity for transcytosis of several viruses and microorganisms. Here, we report that we have successfully established a bovine intestinal epithelial cell line (BIE cells) and developed an in vitro M cell model. BIE cells have a cobblestone morphology and microvilli-like structures, and strongly express cell-to-cell junctional proteins and cytokeratin, which is a specific intermediate filament protein of epithelial cells. After co-culture with murine intestinal lymphocytes or treatment with supernatant from bovine PBMC cultured with IL-2, BIE cells acquired the ability of transcytosis. Therefore, BIE cells have typical characteristics of bovine intestinal epithelial cells and also have the ability to differentiate into an M cell like linage. In addition, our results indicate that contact between immune cells and epithelial cells may not be absolutely required for the differentiation of M cells. We think that BIE cells will be useful for studying the transport mechanisms of various pathogens and also the evaluation of drug delivery via M cells.

  219. Immunomodulation in gut-associated lymphoid tissue of neonatal chicks by immunobiotic diets Peer-reviewed

    K. Sato, K. Takahashi, M. Tohno, Y. Miura, T. Kamada, S. Ikegami, H. Kitazawa

    POULTRY SCIENCE 88 (12) 2532-2538 2009/12

    DOI: 10.3382/ps.2009-00291  

    ISSN: 0032-5791

  220. Negative effect of divalent metal cations on production of gassericin T, a bacteriocin produced by Lactobacillus gasseri, in milk-based media Peer-reviewed

    Kensuke Arakawa, Yasushi Kawai, Junko Nishimura, Haruki Kitazawa, Tadao Saito

    International Dairy Journal 19 (10) 612-616 2009/10

    DOI: 10.1016/j.idairyj.2009.04.007  

    ISSN: 0958-6946

  221. Effects of gassericins A and T, bacteriocins produced by Lactobacillus gasseri, with glycine on custard cream preservation Peer-reviewed

    K. Arakawa, Y. Kawai, H. Iioka, M. Tanioka, J. Nishimura, H. Kitazawa, K. Tsurumi, T. Saito

    JOURNAL OF DAIRY SCIENCE 92 (6) 2365-2372 2009/06

    DOI: 10.3168/jds.2008-1240  

    ISSN: 0022-0302

  222. DNA Sequencing and Homologous Expression of a Small Peptide Conferring Immunity to Gassericin A, a Circular Bacteriocin Produced by Lactobacillus gasseri LA39 Peer-reviewed

    Yasushi Kawai, Joni Kusnadi, Rober Kemperman, Jan Kok, Yoshiyuki Ito, Mikiko Endo, Kensuke Arakawa, Hideaki Uchida, Junko Nishimura, Haruki Kitazawa, Tadao Saito

    APPLIED AND ENVIRONMENTAL MICROBIOLOGY 75 (5) 1324-1330 2009/03

    DOI: 10.1128/AEM.02485-08  

    ISSN: 0099-2240

  223. Utilization of the Porcine System to Study Lymphotoxin-beta Regulation in Intestinal Lymphoid Tissue Peer-reviewed

    Tomoyuki Shimazu, Masanori Tohno, Shinichiro Katoh, Takeshi Shimosato, Hisashi Aso, Yasushi Kawai, Tadao Saito, Haruki Kitazawa

    BIOCHEMICAL GENETICS 47 (1-2) 126-136 2009/02

    DOI: 10.1007/s10528-008-9212-4  

    ISSN: 0006-2928

  224. An analysis of TLR family in swine as a human model and their progressive application for dairy field.

    Tohno, M, T. Saito, H. Kitazawa

    Milk Science 57 (3) 79-85 2009/01/08

    Publisher: Japanese Dairy Science Association

    DOI: 10.11465/milk.57.79  

    ISSN: 1343-0289

  225. Immunostimulatory DNA motif from immunobiotics and its potential applications

    Shimosato, T, H. Kitazawa

    Milk Science 57 (3) 103-107 2009/01/08

    Publisher:

    ISSN: 1343-0289

  226. Modulation of innate immunity by lactic acid bacteria: impact on host response to infections Peer-reviewed

    Alvarez S, Villena J, Tohno M, Salva S, Kitazawa H

    Current Research in Immunology 3 87-126 2009

  227. Identification of a potent immunostimulatory oligodeoxynucleotide from Streptococcus thermophilus lacZ Peer-reviewed

    Takeshi Shimosato, Masanori Tohno, Takashi Sato, Junko Nishimura, Yasushi Kawai, Tadao Saito, Haruki Kitazawa

    ANIMAL SCIENCE JOURNAL 80 (5) 597-604 2009

    DOI: 10.1111/j.1740-0929.2009.00680.x  

    ISSN: 1344-3941

  228. Development of evaluation system for immunobiotics Invited

    Kitazawa, H, H. Aso

    Multilateral Workshop, "Challenge for the reduction of antimicrobial use in animal production.", pp73-80, Tsukuba Nov. 11 2008/11/11

    More details Close

    (独)農業・食品産業技術総合研究機構と畜産草地研究所の協賛で行われた「多国間ワークショップ」招待講演の内容をまとめたもの。海外から著名な研究者8名、国内から4名の招待講演があり、その1つを講演した。海外研究者からも高く評価され、興味関心がもたれた。

  229. Cell surface glyceraldehyde-3-phosphate dehydrogenase (GAPDH) of Lactobacillus plantarum LA 318 recognizes human A and B blood group antigens Peer-reviewed

    Hideki Kinoshita, Nozomi Wakahara, Masamichi Watanabe, Tomomi Kawasaki, Hiroki Matsuo, Yasushi Kawai, Haruki Kitazawa, Sinobu Ohnuma, Koh Miura, Akira Horii, Tadao Saito

    RESEARCH IN MICROBIOLOGY 159 (9-10) 685-691 2008/11

    DOI: 10.1016/j.resmic.2008.07.005  

    ISSN: 0923-2508

  230. Bacteriocin production of probiotic Lactobacillus gasseri LA39 isolated from human feces in milk-based media Peer-reviewed

    Kensuke Arakawa, Yasushi Kawai, Kenji Fujitani, Junko Nishimura, Haruki Kitazawa, Ken-ichi Komine, Kenzo Kai, Tadao Saito

    ANIMAL SCIENCE JOURNAL 79 (5) 634-640 2008/10

    DOI: 10.1111/j.1740-0929.2008.00574.x  

    ISSN: 1344-3941

  231. Improved growth and increased bacteriocin production of probiotic Lactobacillus gasseri strains in milk-based media Peer-reviewed

    K. Arakawa, Y. Kawai, H. Kitazawa, T. Saito

    the 9th Symposium on Lactic Acid Bacteria F013 2008/09

  232. Effect of fatty acids(C18:1, octadecenoic acids) to bacteriocin production and resistance of Lactobacillus gasseri strains isolated from human intestine and feces Peer-reviewed

    Y. Kawai, I. Itoh, Y. Endo, K. Arakawa, J. Nishimura, H. Kitazawa, T. Saito

    the 9th Symposium on Lactic Acid Bacteria F010 2008/09

  233. New strategy to exclude harmful bacteria from the human intestine using probiotic lactic acid bacteria (LAB) having specific adhesion to ABO-type human blood antigens of the intestinal mucosa Peer-reviewed

    T. Saito, N. Wakahara, M. Watanabe, H. Matsuo, H. Kinoshita, Y. Kawai, H. Kitazawa, K. Miura, A. Horii, K. Kimura, N. Taketomo

    the 9th Symposium on Lactic Acid Bacteria C006 2008/09

  234. Anterior pituitary progenitor cells express costimulatory molecule 4Ig-B7-H3 Invited Peer-reviewed

    Nagai, Y., Aso, H., Ogasawara, H., Tanaka, S., Taketa, Y., Watanabe, K., Ohwada, S., Rose, M.T., Kitazawa, H., Yamaguchi, T.

    Journal of Immunology 181 (9) 6073-6081 2008/09

    DOI: 10.4049/jimmunol.181.9.6073  

    ISSN: 1550-6606 0022-1767

  235. Microbial community analysis of food-spoilage bacteria in commercial custard creams using culture-dependent and independent methods Peer-reviewed

    K. Arakawa, Y. Kawai, H. Iioka, M. Tanioka, J. Nishimura, H. Kitazawa, K. Tsurumi, T. Saito

    JOURNAL OF DAIRY SCIENCE 91 (8) 2938-2946 2008/08

    DOI: 10.3168/jds.2007-0677  

    ISSN: 0022-0302

  236. Differentiation of a murine intestinal epithelial cell line (MIE) toward the M cell lineage. International-journal Peer-reviewed

    Takashi Kanaya, Kohtaro Miyazawa, Ikuro Takakura, Wataru Itani, Kouichi Watanabe, Shyuichi Ohwada, Haruki Kitazawa, Michael T Rose, Huw R McConochie, Hideyuki Okano, Takahiro Yamaguchi, Hisashi Aso

    American journal of physiology. Gastrointestinal and liver physiology 295 (2) G273-84-284 2008/08

    DOI: 10.1152/ajpgi.00378.2007  

    More details Close

    M cells are a kind of intestinal epithelial cell in the follicle-associated epithelium of Peyer's patches. These cells can transport antigens and microorganisms into underlying lymphoid tissues. Despite the important role of M cells in mucosal immune responses, the origin and mechanisms of differentiation as well as cell death of M cells remain unclear. To clarify the mechanism of M cell differentiation, we established a novel murine intestinal epithelial cell line (MIE) from the C57BL/6 mouse. MIE cells grow rapidly and have a cobblestone morphology, which is a typical feature of intestinal epithelial cells. Additionally, they express cytokeratin, villin, cell-cell junctional proteins, and alkaline phosphatase activity and can form microvilli. Their expression of Musashi-1 antigen indicates that they may be close to intestinal stem cells or transit-amplifying cells. MIE cells are able to differentiate into the M cell lineage following coculture with intestinal lymphocytes, but not with Peyer's patch lymphocytes (PPL). However, PPL costimulated with anti-CD3/CD28 MAbs caused MIE cells to display typical features of M cells, such as transcytosis activity, the disorganization of microvilli, and the expression of M cell markers. This transcytosis activity of MIE cells was not induced by T cells isolated from PPL costimulated with the same MAbs and was reduced by the depletion of the T cell population from PPL. A mixture of T cells treated with MAbs and B cells both from PPL led MIE cells to differentiate into M cells. We report here that MIE cells have the potential ability to differentiate into M cells and that this differentiation required activated T cells and B cells.

  237. Identification of five phospho-beta-glycosidases from Lactobacillus gasseri ATCC33323(T) cultured in lactose medium Peer-reviewed

    Seiji Nagaoka, Hiroyuki Honda, Satoru Ohshima, Yasushi Kawai, Haruki Kitazawa, Yoshio Tateno, Yukiko Yamazaki, Tadao Saito

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 72 (7) 1954-1957 2008/07

    DOI: 10.1271/bbb.80089  

    ISSN: 0916-8451

    eISSN: 1347-6947

  238. Cell surface Lactobacillus plantarum LA 318 glyceraldehyde-3-phosphate dehydrogenase (GAPDH) adheres to human colonic mucin Peer-reviewed

    H. Kinoshita, H. Uchida, Y. Kawai, T. Kawasaki, N. Wakahara, H. Matsuo, M. Watanabe, H. Kitazawa, S. Ohnuma, K. Miura, A. Horii, T. Saito

    JOURNAL OF APPLIED MICROBIOLOGY 104 (6) 1667-1674 2008/06

    DOI: 10.1111/j.1365-2672.2007.03679.x  

    ISSN: 1364-5072

  239. Immunostimulatory oligodeoxynucleotide containing TTTCGTTT motif from Lactobacillus rhamnosus GG DNA potentially suppresses OVA-specific IgE production in mice Peer-reviewed

    I. D. Iliev, M. Tohno, D. Kurosaki, T. Shimosato, F. He, M. Hosoda, T. Saito, H. Kitazawa

    SCANDINAVIAN JOURNAL OF IMMUNOLOGY 67 (4) 370-376 2008/04

    DOI: 10.1111/j.1365-3083.2008.02080.x  

    ISSN: 0300-9475

  240. Molecular cloning and functional characterization of porcine nucleotide-binding oligornerization domain-1 (NOD1) recognizing minimum agonists, meso-diaminopimelic acid and meso-lanthionine Peer-reviewed

    Masanori Tohno, Tomoyuki Shimazu, Hisashi Aso, Akiko Uehara, Haruhiko Takada, Akiko Kawasaki, Yukari Fujimoto, Koichi Fukase, Tadao Saito, Haruki Kitazawa

    MOLECULAR IMMUNOLOGY 45 (6) 1807-1817 2008/03

    DOI: 10.1016/j.molimm.2007.09.029  

    ISSN: 0161-5890

  241. Development of molecular immunoassay system for probiotics via toll-like receptors based on food immunology

    Haruki Kitazawa, Masanori Tohno, Takeshi Shimosato, Tadao Saito

    ANIMAL SCIENCE JOURNAL 79 (1) 11-21 2008/02

    DOI: 10.1111/j.1740-0929.2007.00492.x  

    ISSN: 1344-3941

  242. Toll-like receptor 4 and cytokine expression involved in functional immune response in an originally established porcine intestinal epitheliocyte cell line Peer-reviewed

    Masayuki Moue, Masanori Tohno, Tomoyuki Shimazu, Taketomo Kido, Hisashi Aso, Tadao Saito, Haruki Kitazawa

    BIOCHIMICA ET BIOPHYSICA ACTA-GENERAL SUBJECTS 1780 (2) 134-144 2008/02

    DOI: 10.1016/j.bbagen.2007.11.006  

    ISSN: 0304-4165

  243. Molecular cloning and functional characterization of porcine nucleotide-binding oligomerization domain-2 (NOD2) Peer-reviewed

    Masanori Tohno, Wataru Ueda, Yuko Azuma, Tomoyuki Shimazu, Shinichiro Katoh, Ji Ming Wang, Hisashi Aso, Haruhiko Takada, Yasushi Kawai, Tadao Saito, Haruki Kitazawa

    MOLECULAR IMMUNOLOGY 45 (1) 194-203 2008/01

    DOI: 10.1016/j.molimm.2007.04.019  

    ISSN: 0161-5890

  244. beta-Galactosidase, phospho-beta-galactosidase and phospho-beta-glucosidase activities in lactobacilli strains isolated from human faeces Peer-reviewed

    H. Honda, F. Kataoka, S. Nagaoka, Y. Kawai, H. Kitazawa, H. Itoh, K. Kimura, N. Taketomo, Y. Yamazaki, Y. Tateno, T. Saito

    LETTERS IN APPLIED MICROBIOLOGY 45 (5) 461-466 2007/11

    DOI: 10.1111/j.1472-765X.2007.02176.x  

    ISSN: 0266-8254

  245. Molecular cloning and functional characterization of porcine MyD88 essential for TLR signaling. International-journal Peer-reviewed

    Masanori Tohno, Tomoyuki Shimazu, Hisashi Aso, Yasushi Kawai, Tadao Saito, Haruki Kitazawa

    Cellular & molecular immunology 4 (5) 369-76 2007/10

    ISSN: 1672-7681

    More details Close

    We isolated cDNA encoding porcine MyD88 (poMyD88) from Peyer's patches (Pps) of GALT. The complete open reading frame (ORF) of poMyD88 contains 879 bp encoding a deduced 293 aa residues. The amino acid sequence of poMyD88 was characterized by N-terminal death, intermediate and C-terminal Toll/IL-1 receptor (TIR) domains. The putative poMyD88 protein shares a higher level of homology with its human (87.2% amino acid identity) than with its mouse (77.4% amino acid identity) counterpart. Overexpression of poMyD88 participated in the further enhanced activation of NF-kappaB in human embryonic kidney (HEK) 293 cells expressing porcine TLR2 and porcine TLR4/MD-2, but not porcine RP105/MD-1 after stimulation with the corresponding ligands. The expression levels of MyD88 were highest in the spleen and mesenteric lymph nodes (MLNs), and lower in digestive tissues of newborn swine. In adult swine, the expression levels in the digestive tissues were lower than those in MLNs and the spleen. These results suggest that an MyD88-dependent signaling pathway is present in newborn as well as in adult swine and that it is involved in the innate immune system of these animals.

  246. Enzymatic digestion of the milk protein beta-casein releases potent chemotactic peptide(s) for monocytes and macrophages Peer-reviewed

    Haruki Kitazawa, Kumiko Yonezawa, Masanori Tohno, Takeshi Shimosato, Yasushi Kawai, Tadao Saito, Ji Ming Wang

    INTERNATIONAL IMMUNOPHARMACOLOGY 7 (9) 1150-1159 2007/09

    DOI: 10.1016/j.intimp.2007.04.008  

    ISSN: 1567-5769

  247. Preparation of phosphorylated lactose with improved mineral carrying ability Peer-reviewed

    Kikuchi, S, C. Nagasawa, H. Uchida, Y. Kawai, H. Kitazawa, H. Fujimoto, H. Itoh, T. Saito

    Tohoku J. Anim. Sci. Technol. 57 (1) 19-26 2007/06/29

  248. An assay system for probiotics lactic acid bacteria recognizing human blood type A-antigen that competitively excludes harmuful intestinal bacteria.

    T. Saito, N. Wakahara, H. Uchida, H. Kinoshita, Y. Kawai, H. Kitazawa, K. Miura, A. Horii, K. Kimura, N. Taketomo

    2007 ADSA-PSA-AMPA-ASAS Joint Meeting, San Antonio, Proceeding 171 2007/06

  249. Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) expressed on the cell surface of Lactobacills plantarum LA318 mediates adhesion to human colonic mucin.

    H.Kinoshita, H. Uchida, T. Kawasaki, H. Wakahara, H. Matuo, Y. Kawai, H. Kitazawa, S. Ohmura, K. Miura, K. Shiiba, A. Horii, T. Saito

    2007 ADSA-PSA-AMPA-ASAS Joint Meeting, San Antonio, Proceeding 171 2007/06

  250. Advanced molecular immunoassay system for immunobiotic lactic acid bacteria using a transfectant of Toll-like receptor 2 Peer-reviewed

    Masanori Tohno, Takeshi Shimosato, Yasushi Kawai, Hisashi Aso, Shuji Ikegami, Naoki Taketomo, Tadao Saito, Haruki Kitazawa

    ANIMAL SCIENCE JOURNAL 78 (2) 195-205 2007/04

    DOI: 10.1111/j.1740-0929.2007.00425.x  

    ISSN: 1344-3941

    eISSN: 1740-0929

  251. Staining patterns for actin and villin distinguish M cells in bovine follicle-associated epithelium Peer-reviewed

    Takashi Kanaya, Hisashi Aso, Kohtaro Miyazawa, Taketomo Kido, Takeshi Minashima, Kouichi Watanabe, Shyuichi Ohwada, Haruki Kitazawa, Michael T. Rose, Takahiro Yamaguchi

    RESEARCH IN VETERINARY SCIENCE 82 (2) 141-149 2007/04

    DOI: 10.1016/j.rvsc.2006.05.009  

    ISSN: 0034-5288

  252. Molecular cloning of porcine RP105/MD-1 involved in recognition of extracellular phosphopolysaccharides from Lactococcus lactis ssp cremoris Peer-reviewed

    Masanori Tohno, Tomoyuki Shimazu, Wataru Ueda, Daisuke Anzawa, Hisashi Aso, Junko Nishimura, Yasushi Kawai, Yasuo Saito, Tadao Saito, Haruki Kitazawa

    MOLECULAR IMMUNOLOGY 44 (10) 2566-2577 2007/04

    DOI: 10.1016/j.molimm.2006.12.021  

    ISSN: 0161-5890

  253. Immunohistochemical characterization of cell types expressing the cellular prion protein in the small intestine of cattle and mice Peer-reviewed

    Kohtaro Miyazawa, Takashi Kanaya, Sachi Tanaka, Ikuro Takakura, Kouichi Watanabe, Shyuichi Ohwada, Haruki Kitazawa, Michael T. Rose, Suehiro Sakaguchi, Shigeru Katamine, Takahiro Yamaguchi, Hisashi Aso

    HISTOCHEMISTRY AND CELL BIOLOGY 127 (3) 291-301 2007/03

    DOI: 10.1007/s00418-006-0250-x  

    ISSN: 0948-6143

  254. Quantitative evaluation of adhesion of lactobacilli isolated from human intestinal tissues to human colonic mucin using surface plasmon resonance (BIACORE assay) Peer-reviewed

    H. Kinoshita, H. Uchida, Y. Kawai, H. Kitazawa, K. Miura, K. Shiiba, A. Horii, T. Saito

    JOURNAL OF APPLIED MICROBIOLOGY 102 (1) 116-123 2007/01

    DOI: 10.1111/j.1365-2672.2006.03061.x  

    ISSN: 1364-5072

    eISSN: 1365-2672

  255. Lactic acid bacteria (LAB) bind to human B- or H-antigens expressed on intestinal mucosa Peer-reviewed

    Hideaki Uchida, Yasushi Kawai, Hideki Kinoshita, Haruki Kitazawa, Koh Miura, Kenichi Shiiba, Akira Horii, Katsunori Kimura, Naoki Taketomo, Munehiro Oda, Takaji Yajima, Tadao Saito

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 70 (12) 3073-3076 2006/12

    DOI: 10.1271/bbb.60407  

    ISSN: 0916-8451

    eISSN: 1347-6947

  256. Toll-like receptor 2 and 9 are expressed and functional in gut-associated lymphoid tissues of presuckling newborn swine Peer-reviewed

    Masanori Tohno, Takeshi Shimosato, Masayuki Moue, Hisashi Aso, Kouichi Watanabe, Yasushi Kawai, Takahiro Yamaguchi, Tadao Saito, Haruki Kitazawa

    VETERINARY RESEARCH 37 (6) 791-812 2006/11

    DOI: 10.1051/vetres:2006036  

    ISSN: 0928-4249

  257. Lactobacilli binding human A-antigen expressed in intestinal mucosa Peer-reviewed

    Hideaki Uchida, Hideki Kinoshita, Yasushi Kawai, Haruki Kitazawa, Koh Miura, Kenichi Shiiba, Akira Horii, Katsunori Kimura, Naoki Taketomo, Munehiro Oda, Takaji Yajima, Tadao Saito

    RESEARCH IN MICROBIOLOGY 157 (7) 659-665 2006/09

    DOI: 10.1016/j.resmic.2006.03.001  

    ISSN: 0923-2508

  258. Oral administration of an immunostimulatory DNA sequence from Bifidobacterium longum improves Th1/Th2 balance in a murine model Peer-reviewed

    Noritoshi Takahashi, Haruki Kitazawa, Noriyuki Iwabuchi, Jin-Zhong Xiao, Kazuhiro Miyaji, Keiji Iwatsuk, Tadao Sait

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 70 (8) 2013-2017 2006/08

    DOI: 10.1271/bbb.60260  

    ISSN: 0916-8451

    eISSN: 1347-6947

  259. Immunostimulatory oligodeoxynucleotide from Bifidobacterium longum suppresses Th2 immune responses in a murine model Peer-reviewed

    N Takahashi, H Kitazawa, N Iwabuchi, JZ Xiao, K Miyaji, K Iwatsuki, T Saito

    CLINICAL AND EXPERIMENTAL IMMUNOLOGY 145 (1) 130-138 2006/07

    DOI: 10.1111/j.1365-2249.2006.03111.x  

    ISSN: 0009-9104

  260. An immunostimulatory DNA sequence from a probiotic strain of Bifidobacterium longum inhibits IgE production in vitro Peer-reviewed

    N Takahashi, H Kitazawa, T Shimosato, N Iwabuchi, JZ Xiao, K Iwatsuki, S Kokubo, T Saito

    FEMS IMMUNOLOGY AND MEDICAL MICROBIOLOGY 46 (3) 461-469 2006/04

    DOI: 10.1111/j.1574-695X.2006.00064.x  

    ISSN: 0928-8244

  261. Apoptotic process of porcine intestinal M cells Peer-reviewed

    K Miyazawa, H Aso, T Kanaya, T Kido, T Minashima, K Watanabe, S Ohwada, H Kitazawa, MT Rose, K Tahara, T Yamasaki, T Yamaguchi

    CELL AND TISSUE RESEARCH 323 (3) 425-432 2006/03

    DOI: 10.1007/s00441-005-0086-z  

    ISSN: 0302-766X

  262. Strong immunostimulatory activity of AT-oligodeoxynucleotide requires a six-base loop with a self-stabilized 5 '-C center dot center dot center dot G-3 ' stem structure Peer-reviewed

    T Shimosato, T Kimura, M Tohno, ID Iliev, S Katoh, Y Ito, Y Kawai, T Sasaki, T Saito, H Kitazawa

    CELLULAR MICROBIOLOGY 8 (3) 485-495 2006/03

    DOI: 10.1111/j.1462-5822.2005.00640.x  

    ISSN: 1462-5814

  263. Localization of interleukin-18 and its receptor in somatotrophs of the bovine anterior pituitary gland Peer-reviewed

    Y Nagai, T Nochi, K Watanabe, K Watanabe, H Aso, H Kitazawa, M Matsuzaki, S Ohwada, T Yamaguchi

    CELL AND TISSUE RESEARCH 322 (3) 455-462 2005/12

    DOI: 10.1007/s00441-005-0016-0  

    ISSN: 0302-766X

  264. A swine toll-like receptor 2-expressing transfectant as a potential primary screening system for immunobiotic microorganisms Peer-reviewed

    M Tohno, H Kitazawa, T Shimosato, M Matsumoto, S Katoh, Y Kawai, T Saito

    FEMS IMMUNOLOGY AND MEDICAL MICROBIOLOGY 44 (3) 283-288 2005/06

    DOI: 10.1016/j.femsim.2004.12.009  

    ISSN: 0928-8244

    eISSN: 1574-695X

  265. Toll-like receptor 2 is expressed on the intestinal M cells in swine Peer-reviewed

    M Tohno, T Shimosato, H Kitazawa, S Katoh, ID Iliev, T Kimura, Y Kawai, K Watanabe, H Aso, T Yamaguchi, T Saito

    BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS 330 (2) 547-554 2005/05

    DOI: 10.1016/j.bbrc.2005.03.017  

    ISSN: 0006-291X

  266. Toll-like receptor 9 is expressed on follicle-associated epithelia containing M cells in swine Peyer's patches Peer-reviewed

    Takeshi Shimosato, Masanori Tohno, Haruki Kitazawa, Shinichiro Katoh, Kouichi Watanabe, Yasushi Kawai, Hisashi Aso, Takahiro Yamaguchi, Tadao Saito

    Immunology Letters 98 (1) 83-89 2005/04/15

    Publisher: Elsevier

    DOI: 10.1016/j.imlet.2004.10.026  

    ISSN: 0165-2478

  267. Erratum: Strong immunostimulation in murine cells by Lactobacillus rhamnosus GG DNA containing novel oligodeoxynucleotide pattern (Cellular Microbiology)) Peer-reviewed

    Iliyan D. Iliev, Haruki Kitazawa, Takeshi Shimosato, Shinichiro Katoh, Hirotsugu Morita, Fang He, Masataka Hosoda, Tadao Saito

    Cellular Microbiology 7 (4) 611 2005/04

    DOI: 10.1111/j.1462-5822.2004.00492.x  

    ISSN: 1462-5814

  268. Strong immunostimulation in murine immune cells by Lactobacillus rhamnosus GG DNA containing novel oligodeoxynucleotide pattern Peer-reviewed

    ID Iliev, H Kitazawa, T Shimosato, S Katoh, H Morita, F He, M Hosoda, T Saito

    CELLULAR MICROBIOLOGY 7 (3) 403-414 2005/03

    DOI: 10.1111/j.1462-5822.2004.00470.x  

    ISSN: 1462-5814

  269. Augmentation of T-H-1 type response by immunoactive AT oligonucleotide from lactic acid bacteria via Toll-like receptor 9 signaling Peer-reviewed

    T Shimosato, H Kitazawa, S Katoh, M Tohno, ID Iliev, C Nagasawa, T Kimura, Y Kawai, T Saito

    BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS 326 (4) 782-787 2005/01

    DOI: 10.1016/j.bbrc.2004.11.119  

    ISSN: 0006-291X

  270. Study on probiotic lactic acid bacteria and their application to new functional foods

    Saito, T, H. Kitazawa, Y. Kawai

    Tohoku J. Agric Res. 55 (1-2) 57-65 2004/11

  271. Cloning and characterization of swine interleukin-17, preferentially expressed in the intestines Peer-reviewed

    S Katoh, H Kitazawa, T Shimosato, M Tohno, Y Kawai, T Saito

    JOURNAL OF INTERFERON AND CYTOKINE RESEARCH 24 (9) 553-559 2004/09

    DOI: 10.1089/1079990041992721  

    ISSN: 1079-9907

  272. Dextran from Leuconostoc mesenteroides augments immunostimulatory effects by the introduction of phosphate groups Peer-reviewed

    T Sato, J Nishimura-Uemura, T Shimosato, Y Kawai, H Kitazawa, T Saito

    JOURNAL OF FOOD PROTECTION 67 (8) 1719-1724 2004/08

    ISSN: 0362-028X

  273. Development of immune assay system for both CpG and non-CpG DNA from lactic acid bacteria using a transfectant of swine Toll-like receptor 9 Peer-reviewed

    Takeshi Shimosato, Haruki Kitazawa, Masanori Tohno, Shinichiro Katoh, Yasushi Kawai, Tadao Saito

    Animal Science Journal 75 (4) 377-382 2004/08

    DOI: 10.1111/j.1740-0929.2004.00200.x  

    ISSN: 1344-3941

  274. A new assay using surface plasmon resonance (SPR) to determine binding of the Lactobacillus acidophilus group to human colonic mucin Peer-reviewed

    H Uchida, K Fujitani, Y Kawai, H Kitazawa, A Horii, K Shiiba, K Saito, T Saito

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 68 (5) 1004-1010 2004/05

    DOI: 10.1271/bbb.68.1004  

    ISSN: 0916-8451

    eISSN: 1347-6947

  275. Structural and functional differences in two cyclic bacteriocins with the same sequences produced by lactobacilli Peer-reviewed

    Y Kawai, Y Ishii, K Arakawa, K Uemura, B Saitoh, J Nishimura, H Kitazawa, Y Yamazaki, Y Tateno, T Itoh, T Saitol

    APPLIED AND ENVIRONMENTAL MICROBIOLOGY 70 (5) 2906-2911 2004/05

    DOI: 10.1128/AEM.70.5.2906-2911.2004  

    ISSN: 0099-2240

  276. Structural analysis of a new anti-hypertensive peptide (β-lactosin B) isolated from a commercial whey product Peer-reviewed

    M. Murakami, H. Tonouchi, R. Takahashi, H. Kitazawa, Y. Kawai, H. Negishi, T. Saito

    Journal of Dairy Science 87 (7) 1967-1974 2004

    Publisher: American Dairy Science Association

    DOI: 10.3168/jds.S0022-0302(04)70013-2  

    ISSN: 0022-0302

  277. Immunostimulatory oligonucleotide, CpG-like motif exists in Lactobacillus delbrueckii ssp bulgaricus NIAI B6 Peer-reviewed

    H Kitazawa, H Watanabe, T Shimosato, Y Kawai, T Itoh, T Saito

    INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY 85 (1-2) 11-21 2003/08

    DOI: 10.1016/S0168-1605(02)00477-4  

    ISSN: 0168-1605

  278. Functional alteration of murine macrophages stimulated with extracellular polysaccharides from Lactobacillus delbrueckii ssp bulgaricus OLL1073R-1 Peer-reviewed

    J Nishimura-Uemura, H Kitazawa, Y Kawai, T Itoh, M Oda, T Saito

    FOOD MICROBIOLOGY 20 (3) 267-273 2003/06

    DOI: 10.1016/S0740-0020(02)00177-6  

    ISSN: 0740-0020

  279. Swine Toll-like receptor 9(1) recognizes CpG motifs of human cell stimulant Peer-reviewed

    T Shimosato, H Kitazawa, S Katoh, Y Tomioka, R Karima, S Ueha, Y Kawai, T Hishinuma, K Matsushima, T Saito

    BIOCHIMICA ET BIOPHYSICA ACTA-GENE STRUCTURE AND EXPRESSION 1627 (1) 56-61 2003/05

    DOI: 10.1016/S0167-4781(03)00048-4  

    ISSN: 0167-4781

  280. Heterologous expression of gassericin A, a bacteriocin produced by Lactobacillus gasseri LA39 Peer-reviewed

    Yasushi Kawai, Kensuke Arakawa, Ayako Itoh, Boku Saitoh, Yasuyuki Ishii, Junko Nishimura, Haruki Kitazawa, Takatoshi Itoh, Tadao Saito

    Animal Science Journal 74 (1) 45-51 2003/02

    DOI: 10.1046/j.1344-3941.2003.00085.x  

    ISSN: 1344-3941

  281. Rapid activation of Mac-1(CD11b/CD18) molecules on macrophages by a new chemotactic factor "Gasserokine" produced by Lactobacillus gasseri JCM1131T Peer-reviewed

    Kitazawa, H, T. Ino, T, Y. Kawai, T. Itoh, T. Saito

    Animal Sci. J. 73 395-401 2002/12

    DOI: 10.1046/j.1344-3941.2002.00055.x  

  282. A novel immunostimulating aspect of Lactobacillus gasseri: Induction of “Gasserokine” as chemoattractants for macrophages Peer-reviewed

    Haruki Kitazawa, Tomohiko Ino, Yasushi Kawai, Takatoshi Itoh, Tadao Saito

    International Journal of Food Microbiology 77 (1-2) 29-38 2002/07/25

    DOI: 10.1016/S0168-1605(02)00045-4  

    ISSN: 0168-1605

  283. Lactobacillus reuteri LA6 and Lactobacillus gasseri LA39 isolated from faeces of the same human infant produce identical cyclic bacteriocin Peer-reviewed

    Y Kawai, Y Ishii, K Uemura, H Kitazawa, T Saito, T Itoh

    FOOD MICROBIOLOGY 18 (4) 407-415 2001/08

    DOI: 10.1006/fmic.2001.0412  

    ISSN: 0740-0020

  284. AT oligonucleotides inducing B lymphocyte activation exist in probiotic Lactobacillus gasseri Peer-reviewed

    H Kitazawa, S Ueha, S Itoh, H Watanabe, K Konno, Y Kawai, T Saito, T Itoh, T Yamaguchi

    INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY 65 (3) 149-162 2001/05

    DOI: 10.1016/S0168-1605(00)00500-6  

    ISSN: 0168-1605

  285. cDNA cloning and expression of swine IL-7 from neonatal intestinal epithelium Peer-reviewed

    Satoshi Ueha, Haruki Kitazawa, Yoshihisa Tomioka, Yasushi Kawai, Tadao Saito, Takatoshi Itoh

    Biochimica et Biophysica Acta - Gene Structure and Expression 1517 (3) 468-471 2001/02/16

    DOI: 10.1016/S0167-4781(00)00304-3  

    ISSN: 0167-4781

  286. Primary amino acid and DNA sequences of gassericin T, a lactacin F-family bacteriocin produced by Lactobacillus gasseri SBT2055 Peer-reviewed

    Y Kawai, B Saitoh, O Takahashi, H Kitazawa, T Saito, H Nakajima, T Itoh

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 64 (10) 2201-2208 2000/10

    DOI: 10.1271/bbb.64.2201  

    ISSN: 0916-8451

    eISSN: 1347-6947

  287. Augmentation of macrophage functions by an extracellular phosphopolysaccharide from Lactobacillus delbrueckii ssp. bulgaricus Peer-reviewed

    Haruki Kitazawa, Yasuyuki Ishii, Junko Uemura, Yasushi Kawai, Tadao Saito, Tsutomu Kaneko, Katsuhiko Noda, Takatoshi Itoh

    Food Microbiology 17 (1) 109-118 2000

    Publisher: Academic Press

    DOI: 10.1006/fmic.1999.0294  

    ISSN: 0740-0020

  288. A New screening method for probiotic lactic acid bacteria in the Lactobacillus acidophilus group by using carbohydrate probes Peer-reviewed

    Saito, T, A. Matsumura, H. Kitazawa, Y. Kawai, T. Itoh, H. Hashiba

    Anim.Sci.J. 71 (1) 103-108 2000/01

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.71.103  

    ISSN: 1346-907X

    More details Close

    To select probiotic strains of the Lactobacillus (L.) acidophilus group with high adhesion to human intestinal tracts for developing the functional yogurt, a new screening method using biotinylated carbohydrate probe (BCP) was introduced. After incubation of living cells of 30 strains of the L. acidophilus group with 5 kinds of BCPs which possess representative partial structures of the sugar chains constituting of human colonic mucin, the interaction between cell-surface lectins and BCP were evaluated. The highest reactivity was detected in 19 strains (about 63%) with a trisaccharide probe (GalNAcα (1→3)[Fucα (1→2)] Galβ 1→). The cell-surface lectin activity was first clearly confirmed in the B group of the L. acidophilus group. The adhesion evaluation score (AE score, total sum of each absorbance of 5 BCPs samples) is considered to be useful as an indicator for selection of the probiotic strains which have high adhesiveness in human gastrointestinal tract.

  289. Isolation and structural analysis of antihypertensive peptides that exist naturally in Gouda cheese Peer-reviewed

    T. Saito, T. Nakamura, H. Kitazawa, Y. Kawai, T. Itoh

    Journal of Dairy Science 83 (7) 1434-1440 2000

    Publisher: American Dairy Science Association

    DOI: 10.3168/jds.S0022-0302(00)75013-2  

    ISSN: 0022-0302

  290. New binding assay and preparative trial of cell-surface lectin from Lactobacillus acidophilus group lactic acid bacteria Peer-reviewed

    A Matsumura, T Saito, M Arakuni, H Kitazawa, Y Kawai, T Itoh

    JOURNAL OF DAIRY SCIENCE 82 (12) 2525-2529 1999/12

    DOI: 10.3168/jds.S0022-0302(99)75505-0  

    ISSN: 0022-0302

  291. A novel method for the detection of protease and the development of extracellular protease in early growth stages of Lactobacillus delbrueckii ssp. bulgaricus Peer-reviewed

    Y Kawai, K Tadokoro, R Konomi, K Itoh, T Saito, H Kitazawa, T Itoh

    JOURNAL OF DAIRY SCIENCE 82 (3) 481-485 1999/03

    ISSN: 0022-0302

  292. Nisin Z produced by Lactococcus lactis subsp lactis SBT 1212 and comparison of antibacterial activity with Nisin A Peer-reviewed

    Y Kawai, H Takada, K Konno, B Saitoh, H Kitazawa, T Saito, H Nakajima, H Hashiba, T Itoh

    MILCHWISSENSCHAFT-MILK SCIENCE INTERNATIONAL 54 (11) 616-620 1999

    ISSN: 0026-3788

  293. Molecular cloning and sequencing of two phospho-beta-galactosidase I and II genes of Lactobacillus gasseri JCM1031 isolated from human intestine Peer-reviewed

    T Saito, M Suzuki, K Konno, H Kitazawa, Y Kawai, T Itoh, Y Kamio

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 62 (12) 2318-2327 1998/12

    DOI: 10.1271/bbb.62.2318  

    ISSN: 0916-8451

    eISSN: 1347-6947

  294. Structural analysis of new antihypertensive peptides derived from cheese whey protein by proteinase K digestion Peer-reviewed

    A Abubakar, T Saito, H Kitazawa, Y Kawai, T Itoh

    JOURNAL OF DAIRY SCIENCE 81 (12) 3131-3138 1998/12

    DOI: 10.3168/jds.S0022-0302(98)75878-3  

    ISSN: 0022-0302

  295. Application of two-dimensional mapping for an analysis of galactosyllactoses in yogurt Peer-reviewed

    T Saito, T Tsuji, H Kitazawa, Y Kawai, T Itoh

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 62 (7) 1445-1447 1998/07

    DOI: 10.1271/bbb.62.1445  

    ISSN: 0916-8451

    eISSN: 1347-6947

  296. Phosphate group requirement for mitogenic activation of lymphocytes by an extracellular phosphopolysaccharide from Lactobacillus delbrueckii ssp. bulgaricus Peer-reviewed

    Haruki Kitazawa, Toko Harata, Junko Uemura, Tadao Saito, Tsutomu Kaneko, Takatoshi Itoh

    International Journal of Food Microbiology 40 (3) 169-175 1998/04/14

    DOI: 10.1016/S0168-1605(98)00030-0  

    ISSN: 0168-1605

  297. Gassericin A; an uncommon cyclic bacteriocin produced by lactobacillus gasseri LA39 linked at N- and C-terminal ends Peer-reviewed

    Yasushi Kawai, Tadao Saito, Haruki Kitazawa, Takatoshi Itoh

    Bioscience, Biotechnology and Biochemistry 62 (12) 2438-2440 1998

    DOI: 10.1271/bbb.62.2438  

    ISSN: 1347-6947 0916-8451

  298. Mitogenic activity of whole cells and cell wall components of Lactobacillus acidophilus group lactic acid bacteria on murine spleen and Peyer's patch cells Peer-reviewed

    K Takeda, T Saito, H Kitazawa, J Uemura, T Itoh

    MILCHWISSENSCHAFT-MILK SCIENCE INTERNATIONAL 52 (1) 21-25 1997

    ISSN: 0026-3788

  299. IL-7 activates α4β1 integrin in murine thymocytes Peer-reviewed

    Haruki Kitazawa, Kathrin Muegge, Raffaele Badolato, Ji-Ming Wang, William E. Fogler, Douglas K. Ferris, Chong-Kil Lee, Serge Candéias, Mark R. Smith, Joost J. Oppenheim, Scott K. Durum

    Journal of Immunology 159 (5) 2259-2264 1997

    ISSN: 0022-1767

  300. Isolation of new minor proteins from hen's egg white by affinity chromatography

    Itoh, T, S. Takeuchi, T. Nakamura, H. Kitazawa, T. Saito

    Proceedings of the 8th AAAP Anim. Sci. Congress 2 998-999 1996/10

  301. Induction of IFN-γ and IL-1α production in macrophages stimulated with phosphopolysaccharide produced by Lactococcus lactis ssp. cremoris Peer-reviewed

    Haruki Kitazawa, Takatoshi Itoh, Yoshihisa Tomioka, Michinao Mizugaki, Takahiro Yamaguchi

    International Journal of Food Microbiology 31 (1-3) 99-106 1996

    Publisher: Elsevier B.V.

    DOI: 10.1016/0168-1605(96)00968-3  

    ISSN: 0168-1605

  302. Isolation of a New Minor Protein (Ovofactor-1), Which Has a Cell Growth Promoting Activity, from Hen's Egg White by Heparin Affinity Chromatography Peer-reviewed

    Tadashi Nakamura, Tadao Saito, Haruki Kitazawa, Sanae Takeuchi, Takatoshi Itoh

    Bioscience, Biotechnology, and Biochemistry 59 (10) 1946-1948 1995

    DOI: 10.1271/bbb.59.1946  

    ISSN: 1347-6947 0916-8451

  303. Expression of mRNA encoding IFNα in macrophages stimulated with Lactobacillus gasseri Peer-reviewed

    Kitazawa, H., Tomioka, Y., Matsumura, K., Aso, H., Mizugaki, M., Itoh, T., Yamaguchi, T.

    FEMS Microbiology Letters 120 (3) 315-322 1994/08

    DOI: 10.1111/j.1574-6968.1994.tb07052.x  

    ISSN: 1574-6968 0378-1097

  304. Fractionation of glycopeptides from bovine Kappa-casein and hen ovomucin via lysozyme affinity chromatography Peer-reviewed

    Saito, T, T. Nakamura, T.Kabuki, H. Kitazawa, T. Itoh

    Anim. Sci. Tech. 65 (7) 624-630 1994/07

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.65.624  

    ISSN: 1346-907X

    More details Close

    The specific and rapid fractionation of glycopeptides containing N-acetyl-neuraminic acids (NANA) and/or ester sulfates (-SO4) was performed by affinity chromatography using a column immobilized egg white lysozyme (Lz) as a ligand. The two model samples used were as follows: caseinoglycopeptide (CGP, κ-Cn: f106-169), which was prepared from bovine κ-casein (non-sulfated sialoglycoprotein) by chymosin digestion, and ovomucin glycopeptide (OGP), which was obtained from hen ovomucin (OM, sulfated sialoglycoprotein) by actinase E digestion. Stepwise elution with NaCl (0 -0.5M) was superior for mutual separation of the sample components. When CGP was applied on the column, asialo-CGP was eluted in the non-adsorbed fraction and the effective separation of pure sialyl-CGP (eluted with 0.1M NaCl) was attained. OGP was separated into a neutral (non-adsorbed) and two acidic (eluted with 0.1-0.3M NaCl) glycopeptide fractions. In particular, the acidic fractions were completely separated into glycopeptides binding NANA (0.1-0.2M NaCl) and co-binding NANA Plus -SO4 (0.3M NaCl) at the biological pH range of around 7.0 without the cleavage of labile NANA bonds. Moreover, under the condition of 0.2M NaCl, sulfated sialoglycopeptides could only be directly isolated from protease digested whole egg white without through the preparation step of OM.

  305. Characteristics of bovine colostral immunoglobulin G1 wity lectin-like and mitogenic activities Peer-reviewed

    Saito, T, M. Miura, Y. Fujioka, H. Kitazawa, T. Itoh

    Anim. Sci. Technol. 65 (2) 105-111 1994/02

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.65.105  

    ISSN: 1346-907X

    More details Close

    The Sephadex-binding immunoglobulin G1 (SB-IgG1) showing both lectin-like activity and mitogenic activity toward murine spleen cells was isolated from bovine colostrum immediately after parturition by salting-out, batchwise Sephadex affinity-and ion-exchange chromatography. The yield of SB-IgG1 was ca. 150mg from one liter of colostrum. SB-IgG1 could precisely recognize the chemical structure of α-D-glucopyranose (α-Glc) in oligosaccharides, especially the C-2 configuration of a hydoxyl group in a hexapyranose ring. The strong affinity of SB-IgG1 for the carbohydrates containing D-Glc residue was attributed to the Fab moiety in the molecule. SB-IgG1 induced mitogenic activity toward both athymic nu/nu and nylon-wool adherent spleen cells, indicating that it is a potent murine B-cell mitogen. The mitogenic activity of SB-IgG1 was completely abrogated after papain digestion.

  306. Hemagglutination Activity of Lactobacillus acidophilus Group Lactic Acid Bacteria Peer-reviewed

    Masahiro Yamada, Tadao Saito, Takahiro Toba, Haruki Kitazawa, Junko Uemura, Takatoshi Itoh

    Bioscience, Biotechnology, and Biochemistry 58 (5) 910-915 1994

    DOI: 10.1271/bbb.58.910  

    ISSN: 1347-6947 0916-8451

  307. An analysis of mitogenic response of phosphopolysaccharide, a B-cell mitogen produced by Lactococcus lactis ssp. cremoris, to spleen cells Peer-reviewed

    Kitazawa, H, T. Yamaguchi, Y. Fujimoto, T. Itoh

    Anim. Sci. Technol. 64 (8) 807-812 1993/08

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.64.807  

    ISSN: 1346-907X

    More details Close

    The character of a phosphopolysaccharide (S-2) produced by Lactococcus lactis ssp. cremoris KVS 20, participating in the mitogenic response of murine spleen cells (W cells), was investigated. When adherent cells (Ad cells) were removed from W cells, non-adherent spleen cells (NAd cells) partially reduced the mitogenic response to S-2. The supernatants from Ad cells which were stimulated with S-2 induced a slight increase in mitogenic activity. The induced activity of the supernatants was much less than the reduced activity to NAd cells. When S-2 was mixed with nylon wool adherent cells which were killed with glutaraldehyde fixation, the cell-free solution from the mixture did not show mitogenic activity to W cells. The indicates that, in the induction of mitogenic activity in W cells, S-2 requires Ad cells as accessory cells, and it also is able to act directly as a B-cell mitogen.

  308. Comparative activity of B-cell mitogen, a phosphopolysaccharide, produced by L. lactis ssp. cremoris on various lymphocytes Peer-reviewed

    Kitazawa, H, T. Yamaguchi, Y. Fujimoto, T. Itoh

    Anim. Sci. Technol. 64 (6) 605-607 1993/06

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.64.605  

    ISSN: 1346-907X

  309. Mitogenic Acitivity of Cell Wall Components from Lactobacillus acidophilus Peer-reviewed

    山田 昌弘, 北澤 春樹, 植村 順子, 齋藤 忠夫, 伊藤 敞敏

    日本畜産学会報 64 (5) 505-511 1993/05

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.64.505  

    ISSN: 1346-907X

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    In order to evaluate biological activities in Lactobacillus acidophilus, the mitogenic activity of the whole cell and hydrolyzed cell wall component (CWC) from 9 L. acidophilus strains were measured using murine spleen cells. Higher activity was generally observed in CWC than ih the whole cell, and was especially high in CWC from JCM strain 2125 (Stimulation Index=3.02 at 100μg/ml). CWC from JCM 2125 was fractionated via DEAE-ion exchange chromatography, followed by activity measurement and chemical analysis. The activity was mainly found in the fractions bound on the DEAE-column, and it was confirmed to be specific to the B-cell of murine spleen cells. Carbohydrate moiety of the active fractions was composed of glucose, Nacetylglucosamine, N-acetyl muramic acid and glycerol. Active fractions contained higher N-acetylglucosamine in their ratio to glucose.

  310. B-Cell Mitogen Produced by Slime-Forming, Encapsulated Lactococcus lactis ssp. cremoris Isolated from Ropy Sour Milk, Viili Peer-reviewed

    Haruki Kitazawa, Takahiro Yamaguchi, Makoto Miura, Tadao Saito, Takatoshi Itoh

    Journal of Dairy Science 76 (6) 1514-1519 1993

    DOI: 10.3168/jds.S0022-0302(93)77483-4  

    ISSN: 0022-0302

  311. Interferon induction by murine peritoneal macrophage stimulated with Lacobacillus gasseri Peer-reviewed

    Matsumura, K, H. Kitazawa, T. Itoh, T. Yamaguchi

    Anim. Sci. Technol. 63 (12) 1157-1159 1992/12

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.63.1157  

    ISSN: 1346-907X

  312. B-CELL MITOGENIC ACTIVITY OF SLIME PRODUCTS PRODUCED FROM SLIME-FORMING, ENCAPSULATED LACTOCOCCUS-LACTIS SSP CREMORIS Peer-reviewed

    H KITAZAWA, T YAMAGUCHI, T ITOH

    JOURNAL OF DAIRY SCIENCE 75 (11) 2946-2951 1992/11

    DOI: 10.3168/jds.S0022-0302(92)78057-6  

    ISSN: 0022-0302

  313. Regulation of swine myogenic cell differentiation before the onset of fusion Peer-reviewed

    Yamaguchi, T, H. Kitazawa

    Anim. Sci. Technol. 63 (4) 358-367 1992/04

    DOI: 10.2508/chikusan.63.358  

  314. INTERFERON INDUCTION IN MURINE PERITONEAL MACROPHAGE BY STIMULATION WITH LACTOBACILLUS-ACIDOPHILUS Peer-reviewed

    H KITAZAWA, K MATSUMURA, T ITOH, T YAMAGUCHI

    MICROBIOLOGY AND IMMUNOLOGY 36 (3) 311-315 1992

    DOI: 10.1111/j.1348-0421.1992.tb01668.x  

    ISSN: 0385-5600

  315. Immunostimulating activity of ropy fermented milk and lactic acid bacteria

    Kitazawa, H, T. Itoh

    Milk Science (Former, Japn. J. Dairy Food Sci.) 40 (6) 261-267 1991/12

  316. SPECIFIC ADSORPTION OF IMMUNOGLOBULIN-G1 IN BOVINE COLOSTRUM ON SEPHADEX AND ITS MITOGENIC ACTIVITY ON MOUSE SPLENOCYTES Peer-reviewed

    M MIURA, T SAITO, H KITAZAWA, T ITOH, T INAMOTO

    AGRICULTURAL AND BIOLOGICAL CHEMISTRY 55 (12) 3103-3105 1991/12

    DOI: 10.1271/bbb1961.55.3103  

    ISSN: 0002-1369

  317. Induction of macrophage cytotoxicity by slime products produced by Lactococcus lactis ssp. cremoris Peer-reviewed

    Kitazawa, H, T. Itoh, T. Yamaguchi

    Anim. Sci. Technol. 62 (9) 861-866 1991/09

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.62.861  

    ISSN: 1346-907X

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    Induction of macrophage (M∅) cytotoxicity by capsular slime product (s) (CSP) produced by Lactococcus lactis subsp. cremoris KVS 20 was examined in viuo and in vitro. The cytotoxic activity of peritoneal macrophages (PE-M∅) was significantly induced by the intraperitoneal injection of CSP in vivo. After the injection of a dose of 100mg/kg, the activity rapidly increased from day 3 and reached a maximum of 65% on day 5. Further, CSP enhanced the proportion of Fcγ-positive M∅ in the peritoneal cavity. When the culture supernatants of PE-M∅ which was stimulated with CSP in uivo (CSP-M∅-Sup) were co-cultured with Sarcoma-480 (S-180) eells, the growth of tumor cells was extremely inhibited, indicating that CSP-M∅-Sup are directly cytotoxic against S-180 cells. However, PE-M∅ stimulated with CSP in vitro did not exhibit any cytotoxicity against S-180 cells. These results strongly suggest that PE-M∅produces cytotoxic factor (s) when stirnulated with CSP in vivo, and the cytotoxic activity of PE-M∅ may be enhanced by the factor(s). The action of lymphoid cells involved in the induction of cytotoxic M∅ by CSP is discussed.

  318. FUNCTIONAL ALTERATION OF MACROPHAGES BY A SLIME-FORMING LACTOCOCCUS-LACTIS SSP CREMORIS Peer-reviewed

    H KITAZAWA, M NOMURA, T ITOH, T YAMAGUCHI

    JOURNAL OF DAIRY SCIENCE 74 (7) 2082-2088 1991/07

    DOI: 10.3168/jds.S0022-0302(91)78380-X  

    ISSN: 0022-0302

  319. Long-term culture of swine myogenic cells Peer-reviewed

    Yamaguchi, T, H. Kitazawa

    Anim. Sci. Technol. 62 (7) 620-627 1991/07

    DOI: 10.2508/chikusan.62.620  

  320. Antitumoral activity of slime-forming, encapsulated Lactococcus lactis subsp. cremoris isolated from Scandinavian ropy sour milk 'viili' Peer-reviewed

    Kitazawa, H, T. Toba, T. Itoh, N. Kumano, S. Adachi, T. Yamaguchi

    Anim. Sci. Technol. 62 (3) 277-283 1991/03

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.62.277  

    ISSN: 1346-907X

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    This study was conducted to investigate the antitumor activity of slimeforming encapsulated Lactococcus lactis subsp. cremoris KVS 20 (L. cremoris KVS 20) isolated from Scandinavian ropy sour milk, "viili". Intraperitoneal (i. p.) injection of lyophilized L. cremoris KVS 20 cells resulted in the growth inhibition of ascitic and solid tumors of Sarcoma-180 (S-180) in ICR mice. Tumor growth was significantly retarded, and the weight mean survival time significantly increased when the preparation was injected at a dose of 50mg/kg for 9 successive days from the day after tumor inoculation. On the other hand, L. cremoris KVS 20 did not exhibit direct cytotoxicity against S-180 tumor cells. These findings suggest that the effectiveness of L. cremoris KVS 20 in preventing tumor growth is induced through enhanced host-mediated immunity.

  321. Antitumor activity of ropy sour milks in murine solid tumor Peer-reviewed

    Kitazawa, H, T. Toba, T. Itoh, N. Kumano, S. Adachi

    Anim. Sci. Technol. 61 (11) 1033-1039 1990/11

    Publisher: Japanese Society of Animal Science

    DOI: 10.2508/chikusan.61.1033  

    ISSN: 1346-907X

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    The antitumor effects of lyophilized preparations of three kinds of ropy sour milks, viili, langfil and ropy yoghurt were evaluated in the murine solid tumor system of Sarcoma-180. Intraperitoneal daily injection of the preparations for 9 days after tumor inoculation significantly inhibited tumor growth. Maximum antitumor effect was induced by a dose of 10mg/kg in the viili preparation and 50mg/kg in the langfil preparation. The antitumor activities of the ropy sour milks were completely abrogated by a single pretreatment of carrageenan. In delayed cutaneous hypersensitivity (DCH) response to oxazolone, the depressed DCH in tumor-bearing mice was significantly enhanced by the injection of three kinds of ropy sour milk. The effective dosage to enhance DCH was almost consistent with that which inhibited tumor growth. These results suggest that the antitumor effect of ropy sour milks may be mediated by the immune responses associated with macrophages and/or T cells.

  322. A NOVEL PHOSPHOPOLYSACCHARIDE FROM SLIME-FORMING LACTOCOCCUS-LACTIS SUBSPECIES CREMORIS SBT-0495 Peer-reviewed

    H NAKAJIMA, S TOYODA, T TOBA, T ITOH, T MUKAI, H KITAZAWA, S ADACHI

    JOURNAL OF DAIRY SCIENCE 73 (6) 1472-1477 1990/06

    DOI: 10.3168/jds.S0022-0302(90)78812-1  

    ISSN: 0022-0302

  323. EFFECTS OF ROPY SOUR MILK ON THE METASTASIS OF LEWIS LUNG-CARCINOMA IN MICE Peer-reviewed

    H KITAZAWA, T TOBA, T ITOH, S ADACHI, N KUMANO

    AGRICULTURAL AND BIOLOGICAL CHEMISTRY 52 (9) 2331-2332 1988/09

    DOI: 10.1271/bbb1961.52.2331  

    ISSN: 0002-1369

  324. INHIBITORY EFFECT OF AUTOCLAVED SKIM MILK ON SOLID SARCOMA-180 IN MICE Peer-reviewed

    H KITAZAWA, T TOBA, T ITOH, S ADACHI, N KUMANO

    MILCHWISSENSCHAFT-MILK SCIENCE INTERNATIONAL 42 (9) 578-579 1987/09

    ISSN: 0026-3788

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    藤井希帆, NGUYEN Quang-Dat, 石橋謙太朗, 布施直之, 谷本拓, 北澤春樹, 大坪和香子, 倉田祥一朗

    日本分子生物学会年会プログラム・要旨集(Web) 46th 2023

  5. ブタ腸管上皮細胞においてミトコンドリア機能を改善するポストイムノバイオティクスの探索

    生井楓, 生井楓, 鈴木眞依, 笠原日菜子, 西山啓太, 西山啓太, 大坪和香子, 大坪和香子, 北澤春樹, 北澤春樹

    日本畜産学会大会講演要旨 131st 2023

    ISSN: 1342-4688

  6. 乳腺上皮細胞における乳成分の炎症制御に関する基礎的研究

    福山皓太朗, 生井楓, 生井楓, 周冰卉, 周冰卉, 大坪和香子, 大坪和香子, 西山啓太, 西山啓太, 麻生久, 麻生久, 北澤春樹, 北澤春樹

    ミルクサイエンス(Web) 72 (2) 2023

    ISSN: 2188-0700

  7. L-fucose utilization by human gut bacteria

    田村彩佳, 大坪和香子, 江田真代, 佐子川さやか, 北澤春樹

    無菌生物(Web) 52 (2) 2022

    ISSN: 2436-7362

  8. Research on stress factors affecting characteristics of Lactobacillus

    ZHOU Binghui, 大坪和香子, 北澤春樹

    無菌生物(Web) 52 (2) 2022

    ISSN: 2436-7362

  9. ウマ腸内細菌Streptococcus equinusによるイヌリンとセロビオースの菌株依存的資化性

    大坪和香子, 西村順子, 神山結斗, 周冰卉, 西山啓太, 北澤春樹

    日本ウマ科学会学術集会講演要旨集 35th 2022

  10. Construction and evaluation of immunobiotic lactobacilli library isolated from sows and piglets Invited

    Ryusuke Ohgi, Haruki Kitazawa

    15 6-6 2020/03/16

  11. イムノバイオティクスからイムノシンバイオティクスによる健全畜産の発展 Invited Peer-reviewed

    北澤 春樹

    動物用ワクチン-バイオ医薬品研究会 NEWS letter 20 3-4 2019/12/25

  12. 抗菌剤使用軽減へ向けた家畜対応型イムノバイオティクス評価法の開発

    島津朋之, 北澤春樹, 遠野雅徳

    動物用ワクチン-バイオ医薬品研究会 NEWA letter 19 7-12 2019/07

  13. はじめにープロバイオティクスからパライムノバイオティクスまでー Invited Peer-reviewed

    北澤春樹, 遠野雅徳

    動物用ワクチン-バイオ医薬品研究会 NEWS letter 19 4-6 2019/07

  14. イムノバイオティックLactobacillus rhamnosusのMBFノックアウト株の樹立

    友常加惠, 友常加惠, 友常加惠, 水野滉也, 水野滉也, 水野滉也, 周冰卉, 周冰卉, 周冰卉, ALBARRACIN Leonardo, ISLAM Md Aminul, ISLAM Md Aminul, ISLAM Md Aminul, 西山啓太, 大坪和香子, 大坪和香子, 大坪和香子, VILLENA Julio, 佐々木泰子, 北澤春樹, 北澤春樹, 北澤春樹

    ミルクサイエンス(Web) 68 (2) 2019

    ISSN: 2188-0700

  15. Lactobacillus bulgaricusのラクトース取込みの対向輸送解析と低ガラクトースヨーグルトの開発

    山田滉介, 大坪和香子, 北澤春樹, 北澤春樹, 齋藤忠夫

    日本畜産学会大会講演要旨 124回 155-155 2018/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  16. ヒト腸管粘膜中に常在する硫酸還元細菌の検出と同定

    大坪 和香子, 日下 練介, 北澤 春樹, 齋藤 忠夫

    無菌生物 47 (1) 57-58 2017/09

    Publisher: 日本無菌生物ノートバイオロジー学会

    ISSN: 0910-0903

  17. PIP細胞におけるTLRを介する脂質/免疫関連因子のトランスクリプトーム解析

    井形 愛美, Kober A.K.M. Humayun, 多田 明日翔, Albarracin Leonardo, 大坪 和香子, 麻生 久, 宮澤 賢司, 依田 一豊, 何 方, 齋藤 忠夫, Villena Julio, 北澤 春樹

    ミルクサイエンス 66 (2) 167-167 2017/08

    Publisher: 日本酪農科学会

    ISSN: 1343-0289

  18. Lactobacillus bulgaricusのラクトース取込みの対向輸送解析と低ガラクトースヨーグルトの開発

    山田 滉介, 大坪 和香子, 北澤 春樹, 齋藤 忠夫

    ミルクサイエンス 66 (2) 168-168 2017/08

    Publisher: 日本酪農科学会

    ISSN: 1343-0289

  19. 発酵乳に利用されるビフィズス菌のハチミツオリゴ糖資化性の検討

    澤田 侑希, 大坪 和香子, 北澤 春樹, 齋藤 忠夫

    ミルクサイエンス 66 (2) 172-172 2017/08

    Publisher: 日本酪農科学会

    ISSN: 1343-0289

    eISSN: 2188-0700

  20. 炎症性腸疾患を悪化させる硫酸基還元細菌に対するビフィズス菌の付着阻害作用の研究

    日下 練介, 大坪 和香子, 北澤 春樹, 齋藤 忠夫

    ミルクサイエンス 66 (2) 173-173 2017/08

    Publisher: 日本酪農科学会

    ISSN: 1343-0289

    eISSN: 2188-0700

  21. ブタ腸管におけるペプチドグリカン認識タンパク質の発現とその調節機構

    飯田ひかる, 飯田ひかる, 遠野雅徳, 須田義人, 大坪和香子, 大坪和香子, 齋藤忠夫, JULIO Villena, JULIO Villena, 北澤春樹, 北澤春樹

    日本畜産学会大会講演要旨 122nd 104 2017/03/28

    ISSN: 1342-4688

  22. ブタ腸管由来ワカメ資化性乳酸菌のイムノバイオティック利用性

    舛水 由季, 飯田 ひかる, 須田 義人, 大坪 和香子, 麻生 久, 齋藤 忠夫, 鈴木 啓一, 北澤 春樹

    日本畜産学会大会講演要旨集 122回 198-198 2017/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  23. 炎症性腸疾患を悪化させる硫酸基還元細菌に対するビフィズス菌の付着阻害作用の研究

    日下 練介, 大坪 和香子, 北澤 春樹, 齋藤 忠夫

    日本畜産学会大会講演要旨集 122回 199-199 2017/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  24. ブタにおけるペプチドグリカン認識タンパク質ファミリーの発現とその調節

    飯田ひかる, 遠野雅徳, 須田義人, 麻生久, 大坪和香子, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 120th 104 2015/09/11

    ISSN: 1342-4688

  25. ブタ腸管由来樹状細胞におけるイムノバイオティクスの取り込み解析

    月田耕一郎, 飯田ひかる, 大和田修一, 遠野雅徳, 須田義人, 麻生久, 牧野聖也, 池上秀二, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 119th 231 2015/03/28

    ISSN: 1342-4688

  26. 自然免疫認識性から見た微生物の多様性とイムノバイオティック戦略(ミニ特集「微生物の多様性」)

    月田耕一郎, 小林永和, 北澤春樹

    日本乳酸菌学会誌 26 (1) 44-44 2015/03/16

  27. ウシ対応型イムノバイオティック評価系の健全畜産における発展的利用性 Invited

    小林永和, 北澤春樹

    日本食品免疫学会会報(学会創立10周年記念号) 10 11-11 2015/03/13

  28. ワカメの給与が育成豚の免疫能及び腸内細菌叢に与える影響

    陸 拾七, 三ツ井 葵, 島津 朋之, 加藤 和雄, 北澤 春樹, 阿部 敬悦, 國井 洋, 斉藤 隼人, 二瓶 健, 阿部 誠, 鈴木 啓一

    日本畜産学会大会講演要旨集 119回 153-153 2015/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  29. Lactobacillus delbrueckii TUA4408Lの生産する菌体外多糖の化学的特徴

    由里俊人, 江草信太郎, 菅原誠, 北澤春樹, 三島隆

    日本応用糖質科学会中部支部総会・講演会 63rd 1 2015

  30. 豚の抗病性育種の取り組み

    鈴木 啓一, 島津 朋之, 陸 拾七, 片山 雄貴, 加藤 和雄, 麻生 久, 北澤 春樹, 岡村 俊宏, 柴田 千尋, 佐久間 晶子, 中條 満, 門脇 宏, 柴田 智也, 鈴木 英作, 須田 義人, 高萩 陽一, 助川 慎, 村上 博, 上西 博英, 奥村 直彦, 松本 敏美

    家畜感染症学会誌 3 (4) 99-101 2014/12

    Publisher: 家畜感染症学会誌編集委員会

    ISSN: 2186-7208

  31. ブタの抗病性育種の取り組みと成果(90周年記念講演ミニレビュー)(公社)日本畜産学会創立90周年記念号

    鈴木啓一, 島津朋之, 陸拾七, 片山雄貴, 加藤和雄, 麻生 久, 北澤春樹, 岡村俊宏, 柴田千尋, 佐久間晶子, 中条 満, 門脇 宏, 柴田智也, 鈴木栄作, 高萩陽一, 助川 慎, 村上 博, 上西博英, 奥村直彦, 松本敏美

    日本畜産学会報 85 (3) 417-420 2014/08

    Publisher: (公社)日本畜産学会

    ISSN: 1346-907X

    eISSN: 1880-8255

  32. ブタ末梢血単球由来樹状細胞によるイムノバイオティック評価

    高橋卓也, 月田耕一郎, 須田義人, 遠野雅徳, 麻生久, 牧野聖也, 池上秀二, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 118th 176 2014/03/27

    ISSN: 1342-4688

  33. ブタ腸管上皮細胞におけるビフィズス菌のToll様受容体を介する抗炎症機構

    友定 洋介, Villena Julio, 島津 朋之, 麻生 久, 岩淵 紀之, 清水 金忠[肖], 齋藤 忠夫, 北澤 春樹

    日本畜産学会大会講演要旨集 118回 114-114 2014/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  34. マイコプラズマ抗病性選抜豚の病変有無によるMPSワクチン刺激に対する免疫応答の違い

    島津 朋之, 陸 拾七, 片山 雄貴, 大津 良輔, 米野 智之, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 佐久間 晶子, 中條 満, 鈴木 啓一

    日本畜産学会大会講演要旨集 118回 164-164 2014/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  35. 応用動物科学系生産フィールド実習(夏期)におけるバター・チーズ製造実習紹介

    西村順子, 山本理恵, 丹内正樹, 川井泰, 北澤春樹, 齋藤忠夫

    技術部報告 (4) 1-2 2014/01

    Publisher: 東北大学大学院農学研究科・農学部 技術部

  36. イムノバイオティクスのブタ腸管樹状細胞における自然免疫認識特性

    月田耕一郎, 高橋卓也, 麻生久, 遠野雅徳, 須田義人, 齋藤忠夫, 池上秀二, 伊藤裕之, 北澤春樹

    日本畜産学会大会講演要旨 117th 56 2013/09/09

    ISSN: 1342-4688

  37. ブタ腸管由来樹状細胞の乳酸菌に対する自然免疫認識特性

    月田耕一郎, 高橋卓也, 麻生久, 遠野雅徳, 須田義人, 齋藤忠夫, 池上秀二, 伊藤裕之, 北澤春樹

    ミルクサイエンス 62 (2) 57 2013/08/08

    ISSN: 1343-0289

  38. 抗病性育種により造成された系統豚ミヤギノL2と他品種・交雑種との抗病性機能および肥育成績の比較検証

    佐久間 晶子, 斉藤 隼人, 國井 洋, 中條 満, 高橋 健, 島津 朋之, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 鈴木 啓一

    日本獣医学会学術集会講演要旨集 156回 212-212 2013/08

    Publisher: (公社)日本獣医学会

    ISSN: 1347-8621

  39. 抗病性LW交雑豚のMPSワクチンに対する免疫応答の比較

    片山 雄貴, 島津 朋之, 陸 拾七, 佐藤 匠, 遠藤 雅士, 大津 良輔, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 佐久間 晶子, 中條 満, 鈴木 啓一

    日本養豚学会誌 = The Japanese journal of swine science 50 (2) 89-89 2013/06/25

    ISSN: 0913-882X

  40. 乳酸菌由来菌体外多糖の免疫刺激活性とその作用機構

    遠野雅徳, 安澤大輔, 齋藤康雄, 北澤春樹

    日本畜産学会大会講演要旨 116th 216 2013/03/28

    ISSN: 1342-4688

  41. 一般ランドレースと大ヨークシャー種のMPSワクチンに対する免疫応答の比較

    島津 朋之, 陸 拾七, 片山 雄貴, 佐藤 匠, 大津 良輔, 遠藤 雅士, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 佐久間 晶子, 中條 満

    日本畜産学会大会講演要旨集 116回 146-146 2013/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  42. MPS病変選抜種と末梢血免疫能選抜種豚の肺病変及びMPSワクチン刺激に対する末梢血免疫応答の比較

    陸 拾七, 島津 朋之, 片山 雄貴, 佐藤 匠, 遠藤 雅士, 大津 良輔, 佐久間 晶子, 中條 満, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 鈴木 啓一

    日本畜産学会大会講演要旨集 116回 147-147 2013/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  43. マイコプラズマ抗病性選抜ランドレース種と他の豚の Goodwin's lung score 比較

    佐久間 晶子, 中條 満, 斎藤 隼人, 國井 洋, 高橋 健, 島津 朋之, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 鈴木 啓一

    日本養豚学会誌 = The Japanese journal of swine science 49 (4) 199-199 2012/12/26

    ISSN: 0913-882X

  44. 免疫能選抜豚の免疫応答・抗病性の検討

    陸 拾七, 島津 朋之, 片山 雄貴, 佐藤 匠, 遠藤 雅士, 大津 良輔, 李 美花, 佐久間 晶子, 中條 満, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 鈴木 啓一

    動物遺伝育種研究 40 (2) 83-83 2012/12

    Publisher: 日本動物遺伝育種学会

    ISSN: 1345-9961

    eISSN: 1884-3883

  45. 乳酸菌あれこれ #59 「プロバイオティクスの定義から ーパラプロバイオティクス?−

    北澤春樹

    日本乳酸菌学会誌 23 (3) 176-176 2012/11/15

  46. ブタ腸管由来乳酸桿菌の分離同定とイムノバイオティック機能評価

    友定洋介, 細矢翔一, 植田渉, 千葉絵里子, 和知俊, 遠野雅徳, 須田義人, 麻生久, 西村順子, 川井泰, 齋藤忠夫, 北澤春樹

    ミルクサイエンス 61 (2) 183 2012/08/03

    ISSN: 1343-0289

  47. 乳酸菌菌体外多糖のパターン認識受容体を介する免疫調節機能特性

    室伏陽, 和知俊, 細矢翔一, 遠野雅徳, 島津朋之, 下里剛士, 川井泰, 齋藤忠夫, 橋口健司, 吉田睦子, 北澤春樹

    ミルクサイエンス 61 (2) 182-182 2012/08

    Publisher: 日本酪農科学会

    ISSN: 1343-0289

    eISSN: 2188-0700

  48. 海藻と甘草の添加給与が豚の免疫能力に及ぼす影響

    李 美花, 島津 朋之, 陸 拾七, 片山 雄貴, 佐藤 匠, 宮崎 達也, 北澤 春樹, 須田 義人, 鈴木 啓一

    日本養豚学会誌 = The Japanese journal of swine science 49 (2) 69-69 2012/06/25

    ISSN: 0913-882X

  49. マイコプラズマ抗病性選抜豚のMPSワクチン刺激に対する血中サイトカイン濃度の経時的推移

    佐藤 匠, 島津 朋之, 陸 拾七, 片山 雄貴, 李 美花, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 佐久間 晶子, 中條 満, 鈴木 啓一

    日本養豚学会誌 = The Japanese journal of swine science 49 (2) 71-71 2012/06/25

    ISSN: 0913-882X

  50. マイコプラズマ抗病性選抜豚のMPSワクチン刺激に対する免疫応答

    島津 朋之, 陸 拾七, 片山 雄貴, 李 美花, 佐藤 匠, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 佐久間 晶子, 中條 満, 鈴木 啓一

    日本養豚学会誌 = The Japanese journal of swine science 49 (2) 72-72 2012/06/25

    ISSN: 0913-882X

  51. 乳房炎発症初期で乳腺組織および乳汁中に確認されたリンパ球遊走因子シクロフィリンA

    堀越頼子, 染谷俊輔, 齋藤千夏, 佐藤秀俊, 北澤春樹, 渡邊康一, 大和田修一, 松原朋子, 菊佳男, 林智人, 麻生久

    日本畜産学会大会講演要旨 115th 233-233 2012/03/28

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  52. 乳酸菌由来オリゴヌクレオチドによる新規分泌型IL‐33様タンパク質の誘導

    下里剛士, 伊藤雄亮, 遠野雅徳, 大谷元, 北澤春樹

    日本畜産学会大会講演要旨 115th 191 2012/03/28

    ISSN: 1342-4688

  53. ブタ対応型イムノバイオティクスの腸管モデル共培養系による抗ウイルス性免疫評価

    千葉 絵里子, 細矢 翔一, Villena Julio, 藤江 瞳, 島津 朋之, 麻生 久, 川井 泰, 齋藤 忠夫, 池上 秀二, 伊藤 裕之, 北澤 春樹

    日本畜産学会大会講演要旨集 115回 119-119 2012/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  54. MPS選抜系統豚のMPSワクチンに対する獲得免疫応答の比較

    片山 雄貴, 島津 朋之, 陸 拾七, 李 美花, 佐藤 匠, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 鈴木 啓一

    日本畜産学会大会講演要旨集 115回 173-173 2012/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  55. MPSワクチン刺激に対する抗病性選抜豚の末梢血中免疫細胞割合の比較

    陸 拾七, 島津 朋之, 片山 雄貴, 李 美花, 佐藤 匠, 北澤 春樹, 麻生 久, 加藤 和雄, 須田 義人, 鈴木 啓一

    日本畜産学会大会講演要旨集 115回 173-173 2012/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  56. ウシ対応型イムノバイオティクスの腸管炎症調節機構

    高梨直也, 村田梢, 千葉絵里子, 細矢翔一, 島津朋之, 遠野雅徳, 麻生久, 須田義人, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 115回 191-191 2012/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  57. 乳酸菌菌体外多糖の異なるパターン認識受容体を介する免疫調節機能特性

    室伏陽, 和知俊, 細矢翔一, 遠野雅徳, 島津朋之, 下里剛士, 川井泰, 齋藤忠夫, 橋口健司, 吉田睦子, 北澤春樹

    日本畜産学会大会講演要旨 115回 191-191 2012/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  58. マイコプラズマ性肺炎(MPS)病変抵抗性豚における鼻腔保有状況と病変スコアの関係と炎症応答タンパク質CRP濃度変化

    須田義人, 佐久間晶子, 島津朋之, 中条満, 北澤春樹, 麻生久, 加藤和雄, 鈴木啓一

    日本分子生物学会年会プログラム・要旨集(Web) 35th 2012

  59. 安全・安心な畜産食品の持続的生産への貢献ー家畜対応型の抗ウイルス性イムノバイオティック評価系構築ー Invited

    千葉絵里子, 北澤春樹

    日本食品免疫学会会報 7 3-4 2011/12

  60. 2012年度日本食品免疫学会を受賞して

    北澤春樹

    日本食品免疫学会会報 8 12-12 2011/12

  61. 腸管免疫系におけるイムノバイオティック乳酸菌によるNLRP3受容体の発現増強

    遠野雅徳, 下里剛士, 麻生久, 北澤春樹

    日本畜産学会大会講演要旨 114th 172 2011/08/26

    ISSN: 1342-4688

  62. ウシ腸管上皮細胞による抗ウイルス性イムノバイオティクスの評価系構築

    千葉絵里子, 細矢翔一, 高梨直也, 下里剛士, 遠野雅徳, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 114th 171 2011/08/26

    ISSN: 1342-4688

  63. Streptococcus thermophilus由来オリゴヌクレオチド刺激によるIL‐33の断片化解析

    下里剛士, 伊藤雄亮, 遠野雅徳, 大谷元, 北澤春樹

    日本畜産学会大会講演要旨 114th 172 2011/08/26

    ISSN: 1342-4688

  64. ウシ腸管上皮細胞による抗ウイルス性イムノバイオティクスの評価系構築

    千葉絵里子, 細矢翔一, 高梨直也, 下里剛士, 遠野雅徳, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹

    ミルクサイエンス 60 (2) 144 2011/08/20

    ISSN: 1343-0289

  65. Streptococcus thermophilus由来オリゴヌクレオチドにより誘導されるIL‐33活性化機構の解析

    下里剛士, 伊藤雄亮, 遠野雅徳, 大谷元, 北澤春樹

    ミルクサイエンス 60 (2) 136 2011/08/20

    ISSN: 1343-0289

  66. 生体防御に関わるペプチドグリカン認識タンパク質ファミリーの腸管における発現解析

    遠野雅徳, 植田渉, 島津朋之, 下里剛士, 麻生久, 北澤春樹

    ミルクサイエンス 60 (2) 137-137 2011/08

    Publisher: 日本酪農科学会

    ISSN: 1343-0289

    eISSN: 2188-0700

  67. ウシ対応型の抗炎症性イムノバイオティックスの選抜・評価

    村田梢, 原理沙, 高梨直也, 千葉絵里子, 島津朋之, 遠野雅徳, 麻生久, 岩淵紀介, 清水(肖)金忠, 川井泰, 齋藤忠夫, 北澤春樹

    ミルクサイエンス 60 (2) 145-145 2011/08

    Publisher: 日本酪農科学会

    ISSN: 1343-0289

    eISSN: 2188-0700

  68. ウシ対応型の抗炎症性イムノバイオティックスの選抜・評価

    村田梢, 原理沙, 高梨直也, 子葉絵里子, 島津朋之, 遠野雅徳, 麻生久, 岩淵紀介, 清水(肖)金忠, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 114回 171-171 2011/08

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  69. ウシ対応型の抗炎症性イムノバイオティックスの選抜・評価

    村田梢, 原理沙, 高梨直也, 千葉絵里子, 島津朋之, 遠野雅徳, 麻生久, 岩淵紀介, 清水(肖)金忠, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 114回 171-171 2011/08

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  70. 豚腸内感染症を制御するイムノバイオティクスおよびイムノジェニクスの探索

    北澤春樹

    動物疾病と腸内細菌シリーズ 第6回 2011/06

    Publisher: 東亜薬品工業(株)

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    最新研究紹介と解説について依頼されたもの

  71. 安全な持続的家畜生産のためのイムノバイオティック革命

    北澤春樹, 須田義人, 麻生 久

    日本家畜臨床感染症研究会誌 5 (3) 79-83 2010/12

    Publisher: 日本家畜臨床感染症研究会

    ISSN: 1884-7420

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    第5回日本家畜臨床感染症研究会総会・学術集会における招待講演の内容にに関する総説。

  72. The Front Line of Research on Immunostimulatory DNA as Immunogenics

    Shimosato, T, H. Kitazawa

    Hokushinetsu J. Anim. Sci. 100 1-9 2010/09

  73. Streptococcus thermophilus由来CpG DNAが誘導するIL‐33の機能性解析

    下里剛士, 畑野木の実, 藤本恵, 遠野雅徳, 大谷元, 北澤春樹

    ミルクサイエンス 59 (2) 179 2010/08/05

    ISSN: 1343-0289

  74. Lactobacillus plantarum No.14が生産する菌体外多糖の腸管免疫調節作用

    室伏陽, 細矢翔一, 藤江瞳, 高梨直也, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹, 遠野雅徳, 橋口健司, 吉田睦子

    日本乳酸菌学会誌 21 (2) 168 2010/07/01

    ISSN: 1343-327X

  75. Streptococcus thermophilus由来DNAによる抗炎症免疫応答の誘導

    下里剛士, 藤本恵, 遠野雅徳, 大谷元, 北澤春樹

    日本畜産学会大会講演要旨 112th 115 2010/03/28

    ISSN: 1342-4688

  76. PIE細胞による抗ウイルス性イムノバイオティクスの評価系構築

    細矢翔一, 島津朋之, 藤江瞳, 高梨直也, 遠野雅徳, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 112回 113-113 2010/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  77. 腸管細胞共培養系によるイムノバイオティック評価系構築

    藤江瞳, 島津朋之, 遠野雅徳, 麻生久, 岩淵紀介, 清水(肖)金忠, 八重島智子, 岩附慧二, 川井泰, 齋藤忠夫, 沼崎宗夫, 北澤春樹

    日本畜産学会大会講演要旨 112回 113-113 2010/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  78. ウシ対応型の抗炎症性イムノバイオティック評価

    高梨直也, 高橋直也, 高橋直也, 島津朋之, 遠野雅徳, 麻生久, 牧野聖也, 池上秀二, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 112回 114-114 2010/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  79. Novel immunostimulatory activities of CpG oligodeoxynucleotides from Streptococcus thermophilus

    T. Shimosato, M. Fujimoto, M. Tohno, T. Sato, H. Otani, H. Kitazawa

    JOURNAL OF DAIRY SCIENCE 93 807-807 2010

    ISSN: 0022-0302

  80. Streptococcus thermophilus由来DNA刺激によるサイトカイン遺伝子の発現特性

    下里剛士, 舘尾万里子, 遠野雅徳, 大谷元, 北澤春樹

    日本畜産学会大会講演要旨 111th 57 2009/09/28

    ISSN: 1342-4688

  81. イムノバイオティック乳酸菌給与による初生ヒナの腸管免疫増強作用

    佐藤幹, 高橋和昭, 遠野雅徳, 三浦美子, 鎌田壽彦, 池上秀二, 北澤春樹

    日本家禽学会誌大会号 46 24 2009/09/10

    ISSN: 0029-0254

  82. First visit to Finland

    Kitazawa, H

    JSPS Nordic & Baltic Newsletter (4) 7-7 2009/09/04

    Publisher: JSPS Stockholm Office

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    日本学術振興会フィンランド同窓会設立サマーセミナーに招待され、講演をした時の報告文が、英語版ニュースレーに掲載された。

  83. ウシ腸管上皮(BIE)細胞株によるイムノバイオティック評価系構築

    高梨直也, 島津朋之, 遠野雅徳, 藤江瞳, 細矢翔一, 麻生久, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 111回 87-87 2009/09

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  84. ブタ腸管上皮(PIE)細胞株によるイムノバイオティック飼料素材の抗炎症性評価

    細矢翔一, 島津朋之, 藤江瞳, 高梨直也, 遠野雅徳, 麻生久, 津田和宏, 熊谷直祐, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 111回 87-87 2009/09

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  85. Toll様受容体を介する免疫パラメーターを用いた抗炎症性Bifidobacteriumの免疫特性解析

    藤江瞳, 森江恭子, 遠野雅徳, 島津朋之, 高梨直也, 細矢翔一, 麻生久, 岩淵紀介, 清水(肖) 金忠, 八重島智子, 岩附慧二, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 111回 87-87 2009/09

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  86. Streptococcus thermophilus由来CpG配列によるIL‐33の発現増強

    下里剛士, 舘尾万里子, 遠野雅徳, 大谷元, 北澤春樹

    ミルクサイエンス 58 (2) 86 2009/08/04

    ISSN: 1343-0289

  87. NOD受容体を介するペプチドグリカン断片の免疫刺激微細構造

    遠野雅徳, 島津朋之, 下里剛士, 麻生久, 齋藤忠夫, 北澤春樹

    ミルクサイエンス 58 (2) 88-88 2009/08

    Publisher: 日本酪農科学会

    ISSN: 1343-0289

    eISSN: 2188-0700

  88. はじめてのフィンランド

    北澤春樹

    日本学術振興会ストックホルム研究連絡センターだより (23) 10 2009/07/01

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    日本学術振興会フィンランド同窓会設立サマーセミナーに招待され、講演をした時の報告文

  89. Streptococcus thermophilus lacZからの強免疫刺激性DNAモチーフの発見

    下里剛士, 遠野雅徳, 西村順子, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 110th 121 2009/03/27

    ISSN: 1342-4688

  90. Lactobacillus plantarumのToll様受容体2を介する免疫刺激特性

    森江恭子, 遠野雅徳, 島津朋之, 植田渉, 藤江瞳, 高梨直也, 細矢翔一, 川井泰, 吉田睦子, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 110回 121-121 2009/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  91. イムノバイオティクスのブタ腸管上皮細胞における抗炎症作用

    島津朋之, 遠野雅徳, 下里剛士, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 110回 122-122 2009/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  92. ブタPGLYRPファミリーの遺伝子強制発現細胞の構築とその機能解析

    植田渉, 遠野雅徳, 島津朋之, 森江恭子, 藤江瞳, 細矢翔一, 高梨直也, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 110回 121-121 2009/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  93. ブタNOD1および2を介する可溶性ペブチドグリカンフラグメントの免疫刺激活性とそのリガンド構造特性

    遠野雅徳, 島津朋之, 下里剛士, 麻生久, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 110回 121-121 2009/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  94. Intestinal immunoregulation by immunobiotics via pattern-recognition receptors

    Tohno, M, H. Kitazawa

    Proceedings of Japanese Society for Animal Nutrition and Metabolism 53 (1) 19-33 2009/03

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    家畜栄養生理研究会春季集談会(平成21年3月28日,日大、神奈川)における招待講演の内容を含む

  95. Bacteriocin production of probiotic Lactobacillus gasseri LA39 isolated from human feces in milk-based media (vol 79, pg 634, 2008)

    Kensuke Arakawa, Yasushi Kawai, Kenji Fujitani, Junko Nishimura, Haruki Kitazawa, Ken-ichi Komine, Kenzo Kai, Tadao Saito

    ANIMAL SCIENCE JOURNAL 79 (6) 745-745 2008/12

    ISSN: 1344-3941

  96. プロバイオティクスからイムノバイオティクス~生体認識機構の解明から期待される世界的発展性~

    北澤春樹, 遠野雅徳

    三島海雲記念財団研究報告書 (45) 145-154 2008/11/01

  97. イムノバイオティクス分子免疫活性評価系の腸管免疫活性評価における有効性

    遠野雅徳, 島津朋之, 森江恭子, 川井泰, 麻生久, 池上秀二, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 109th 55 2008/03/27

    ISSN: 1342-4688

  98. ブタ腸管上皮細胞によるプロバイオティクスの新規ヒトモデル腸管抗炎症評価系の構築

    島津朋之, 遠野雅徳, 馬上真之, 藤江瞳, 川井泰, 麻生久, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 109th 8 2008/03/27

    ISSN: 1342-4688

  99. Toll様受容体9における免疫活性ATオリゴヌクレオチド結合領域の解析

    下里剛士, 遠野雅徳, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 109th 55 2008/03/27

    ISSN: 1342-4688

  100. Lactococcus lactis ssp.cremoris GCL1176株が産生する菌体外多糖のOVA感作マウスにおける免疫調節作用

    安澤大輔, 遠野雅徳, 島津朋之, 齋藤康雄, 齋藤忠夫, 北澤春樹

    日本農芸化学会大会講演要旨集 2008 287 2008/03/05

  101. Toll-like receptor 4 and cytokine expression involved in functional immune response in an originally established porcine intestinal epitheliocyte cell line. International-journal

    Masayuki Moue, Masanori Tohno, Tomoyuki Shimazu, Taketomo Kido, Hisashi Aso, Tadao Saito, Haruki Kitazawa

    Biochimica et biophysica acta 1780 (2) 134-44 2008/02

    ISSN: 0006-3002

    More details Close

    To study the immune responses of porcine intestinal epithelial cells to gram-negative bacteria via toll-like receptors (TLRs), originally established porcine intestinal epitheliocyte (PIE) cells were treated with lipopolysaccharide (LPS) or swine-specific enterotoxigenic Escherichia coli (ETEC). Real-time quantitative PCR revealed that PIE cells expressed TLR1-9 and MD-2 mRNAs, preferentially expressed TLR4/MD-2. Immunostaining of PIE cells revealed that TLR4 was precisely expressed in PIE cells at the protein level. PIE cells treated with LPS had up-regulated expression of several TLRs (TLR2, 3, 4, 5 and 8), type 1 helper T (Th1) cytokines (interleukin (IL)-1alpha, IL-1beta, IL-6, IL-15, 18, leukemia inhibitory factor (LIF), and interferon (IFN)-beta), and chemokines (monocyte chemoattractant protein (MCP)-1 and IL-8). ETEC enhanced the expression of TLR2, Th1 type cytokines (IL-1alpha, IL-12p35 and IL-6) and chemokines (MCP-1 and IL-8). These results indicate that PIE induces inflammatory responses by up-regulating Th1 cytokines and chemokines in response to LPS or ETEC, suggesting that PIE is a useful cell line for studying inflammatory responses via TLR4/MD-2 in intestinal epithelial cells.

  102. βカゼインの酵素消化によるモノサイト/マクロファージ走化性ペプチドの生成

    北澤春樹, 米澤久美子, 遠野雅徳, 下里剛士, 川井泰, 齋藤忠夫, WANG Ji Ming, WANG Ji Ming

    日本畜産学会大会講演要旨 108th 84 2007/09/26

    ISSN: 1342-4688

  103. ブタPGLYRP3および4のクローニングと腸管における発現増強

    植田渉, 遠野雅徳, 島津朋之, 森江恭子, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 108回 76-76 2007/09

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  104. ブタ腸管におけるNOD1および2の発現とイムノバイオティクスによる発現増強

    遠野雅徳, 植田渉, 島津朋之, 森江恭子, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 108回 76-76 2007/09

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  105. イムノバイオティクスが有する免疫スペクトルの比較解析

    森江恭子, 遠野雅徳, 島津朋之, 福田渉, 藤江瞳, 川井泰, 吉田睦子, 出雲耕二, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 108回 75-75 2007/09

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  106. ヒト腸管単離プロバイオティック乳酸菌の腸管付着性機構の解明とその応用

    木下英樹, 内田英明, 川崎保美, 若原望美, 川井泰, 北澤春樹, 三浦康, 椎葉健一, 堀井明, 齋藤忠夫

    日本畜産学会大会講演要旨 107th 10-10 2007/03/27

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  107. ブタ初乳中における可溶型Pettern recognition receptors(PRRs)の探索とその機能解析

    木村晴, 遠野雅徳, 島津朋之, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 107回 145-145 2007/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  108. ブタlymphotoxin‐β(LT‐β)のクローニングと腸管における発現増強

    島津朋之, 遠野雅徳, 加藤真一郎, 下里剛士, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会大会講演要旨 107回 144-144 2007/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  109. ブタ腸管におけるイムノバイオティクスのTLR2を介する免疫機能発現

    遠野雅徳, 島津朋之, 川井泰, 齋藤忠夫, 麻生久, 北澤春樹

    日本畜産学会大会講演要旨 107回 144-144 2007/03

    Publisher: (公社)日本畜産学会

    ISSN: 1342-4688

  110. An assay system for probiotic lactic acid bacteria recognizing human blood type A-antigen that competitively excludes harmful intestinal bacteria

    T. Saito, N. Wakahara, H. Uchida, H. Kinoshita, Y. Kawai, H. Kitazawa, K. Miura, A. Horii, K. Kimura, N. Taketomo

    POULTRY SCIENCE 86 427-427 2007

    ISSN: 0032-5791

  111. An assay system for probiotic lactic acid bacteria recognizing human blood type A-antigen that competitively excludes harmful intestinal bacteria

    T. Saito, N. Wakahara, H. Uchida, H. Kinoshita, Y. Kawai, H. Kitazawa, K. Miura, A. Horii, K. Kimura, N. Taketomo

    JOURNAL OF DAIRY SCIENCE 90 427-427 2007

    ISSN: 0022-0302

  112. プロバイオティクスの細胞内レセプターNodを介する分子免疫活性評価系の構築

    四阿祐子, 遠野雅徳, 下里剛士, 加藤真一郎, 川井泰, 齋藤忠夫, 北澤春樹

    東北畜産学会報 56 (2) 34 2006/08/15

    ISSN: 1341-626X

  113. Functional expression of Toll-like receptors in swine intestine and their application to Food immunology

    Kitazawa, H, M. Tohno, T. Shimosato, T. Saito

    Journal of Veterinary Medicine 59 (7) 559-561 2006/07

    Publisher: Buneido Publishing Co., Ltd.

  114. リン酸化デキストランの免疫調節作用特性

    永沢千穂, 西村順子, 黒崎大輔, 下里剛士, 遠野雅徳, 川井泰, 北沢春樹, 斎藤忠夫

    日本畜産学会大会講演要旨 106th 150 2006/03/20

    ISSN: 1342-4688

  115. ブタ腸管上皮細胞(PIE)におけるTo II様受容体(TLR)ファミリーの機能発現

    馬上真之, 遠野雅徳, 下里剛士, 麻生久, 川井泰, 斎藤忠夫, 北沢春樹

    日本畜産学会大会講演要旨 106th 146 2006/03/20

    ISSN: 1342-4688

  116. プロバイオティクスを認識するブタTLR2強制発現細胞による新規分子免疫評価系の構築

    遠野雅徳, 下里剛士, 川井泰, 斎藤忠夫, 池上秀二, 北沢春樹

    日本畜産学会大会講演要旨 106th 9 2006/03/20

    ISSN: 1342-4688

  117. ブタ腸管関連リンパ組織におけるToll‐like receptor(TLR)2および9の発現とその機能解析

    遠野雅徳, 下里剛士, 川井泰, 渡邊康一, 麻生久, 山口高弘, 齋藤忠夫, 北澤春樹

    日本獣医学会学術集会講演要旨集 141st 226 2006/03/01

    ISSN: 1347-8621

  118. Swine intestinal immunity via Toll-like Receptors and its advanced application to food immunology

    Kitazawa, H, T. Shimosato, M. Tohno, T. Saito

    Journal of Integrated Field Science 3 9-14 2006/03

  119. Immunobiotic lactic acid bacteria induce immune responses in immature gut-associated lymphoid tissues via Toll-like receptors 2 and 9.

    H. Kitazawa, M. Tohno, T. Shimosato, H. Aso, Y. Kawai, T. Saito

    JOURNAL OF ANIMAL SCIENCE 84 278-278 2006

    ISSN: 0021-8812

  120. Development of a new evaluation system for the selection of probiotic lactic acid bacteria (LAB) with specific adhesion to human blood type A-antigen of intestinal mucosa.

    H. Uchida, H. Kinoshita, Y. Kawai, H. Kitazawa, K. Miura, K. Shiiba, A. Horii, K. Kimura, N. Taketomo, M. Oda, T. Yajima, T. Saito

    JOURNAL OF ANIMAL SCIENCE 84 278-279 2006

    ISSN: 0021-8812

  121. Development of a novel immunoassay system for immunobiotics that modulate intestinal immunity through Toll-like receptor 2.

    M. Tohno, T. Shimosato, Y. Kawai, T. Saito, H. Kitazawa

    JOURNAL OF ANIMAL SCIENCE 84 109-109 2006

    ISSN: 0021-8812

  122. Toll様受容体(TLR)9のリガンド構造に新知見

    H. Kitazawa

    化学と生物 43 (12) 775-778 2005/12/10

  123. Bioactive factors from probiotics

    Kitazawa, H, T. Saito

    Antibiotics & Chemotherapy 21 (11) 25-32 2005/10/25

    Publisher: Iyaku (Medicine and Drug) Journal Co., Ltd.

  124. プロバイオティック乳酸菌Lactobacillus rhamnosus GG株由来ゲノムDNAからの新規免疫刺激性オリゴデオキシヌクレオチドの発見

    Kitazawa, H, T. Saito

    食品工業 48 (20) 20-29 2005/09/30

    Publisher: 光琳

    ISSN: 0559-8990

  125. Resent tendency of immunogenics research on lactic acid bacteria

    Saito, T, H. Kitazawa

    Bulletin of Japan Dairy Technical Association 55 34-44 2005/09/10

    Publisher: 日本乳業技術協会

    ISSN: 1341-7878

  126. Immunostimulatory activities of Lactic acid bacteria via Toll-like receptors

    Kitazawa, H, T. Shimosato, M. Tohno, T. Saito

    Jpn. J. Lactic acid bacteria 16 (1) 11-20 2005/06/15

    Publisher: Japan Society for Lactic Acid Bacteria

    DOI: 10.4109/jslab1997.16.11  

    ISSN: 1343-327X

    More details Close

    Many works on the biological functions of dairy lactic acid bacteria (LAB) have contributed to the application of LAB in functional foods and supplements in the global market. More recently, the new term "immunobiotics", has been proposed to identify probiotic bacteria that promote health through activation of intestinal immunity from those with strictly local immunity, and expected for an appropriate evolutionary development. We have studied specific effector molecules and their receptor targets. Recently, we found that immunostimulatory AT oligonucleotide (AT-ODN), but not CpG ODN, from Lactobacillus gasseri JCM 1131T triggered. immune responses via Toll-like receptor 9 (TLR9), which has been identified as a particular receptor for bacterial DNA containing the specific sequence pattern of unmethylated CpG dinucleotide. Through the discovery of TLR9, possible molecular mechanisms in immune responses through bacterial DNA have been rapidly revealed in mice. Recently, we found that ATODN from Lactobacillus gasseri, possibly induces immunoactivation in Peyer's patches (Pps)via TLR9. We demonstrated that TLR9 is a receptor for not only CpG but also for non-CpG AT ODN as a result of the induction of nuclear factor-κB (NF-κB) activation by gene reporter assay. This review describes our recent study on the immunostimulatory activity of LAB via TLRs, especially TLR 9 and 2 and discuss future trends in the development of "Immunobiotic Foods" through intestinal immunoregulation mediated by "Immunobiotic" LAB via TLRs.

  127. Strong immunostimulation in murine immune cells by Lactobacillus rhamnosus GG DNA containing novel oligodeoxynucleotide pattern (vol 7, pg 403, 2004)

    ID Iliev, H Kitazawa, T Shimosato, S Katoh, H Morita, F He, M Hosoda, T Saito

    CELLULAR MICROBIOLOGY 7 (4) 611-611 2005/04

    DOI: 10.1111/j.1462-5822.2005.00492.x  

    ISSN: 1462-5814

  128. Immunoactivity of DNA from immunobiotic lactic acid bacteria via Toll-like receptor 9 and potential applications.

    Shimosato, T, H. Kitazawa, T. Saito

    Milk Science (Former, Japn. J. Dairy Food Sci.) 54 (1) 9-15 2005/03/30

    Publisher: Japanese Dairy Science Association

    DOI: 10.11465/milk.54.9  

    ISSN: 1343-0289

  129. ヒトモデルとしてのブタ腸管関連リンパ組織におけるToll‐like receptor(TLR)2の発現解析

    遠野雅徳, 北沢春樹, 下里剛士, 加藤真一郎, 木村俊朗, 川井泰, 渡辺康一, 麻生久, 山口高弘

    日本畜産学会大会講演要旨 104th 175 2005/03/20

    ISSN: 1342-4688

  130. 新規免疫活性ATオリゴヌクレオチドのLactobacillus gasseri OLL2716ゲノムDNAからの探索

    木村俊朗, 北沢春樹, 下里剛士, 伊藤喜之, 加藤真一郎, 遠野雅徳, 永沢千穂, 川井泰, 佐々木隆

    日本畜産学会大会講演要旨 104th 175 2005/03/20

    ISSN: 1342-4688

  131. 免疫活性ATオリゴヌクレオチドのToll様受容体9を介するTh‐1系免疫応答の誘導

    下里剛士, 北沢春樹, 加藤真一郎, 遠野雅徳, 永沢千穂, 木村俊朗, 川井泰, 斎藤忠夫

    日本畜産学会大会講演要旨 104th 175 2005/03/20

    ISSN: 1342-4688

  132. ブタTLR2トランスフェクタントの構築とその利用

    遠野雅徳, 北沢春樹, 下里剛士, 加藤真一郎, 川井泰, 斎藤忠夫

    日本畜産学会大会講演要旨 103rd 176 2004/03/20

    ISSN: 1342-4688

  133. ブタインターフェロン‐γ受容体(IFNγR)のクローニングとその解析

    北沢春樹, 加藤真一郎, 下里剛士, 遠野雅徳, 川井泰, 斎藤忠夫

    日本畜産学会大会講演要旨 103rd 176 2004/03/20

    ISSN: 1342-4688

  134. ブタTLR9トランスフェクタントによる乳酸菌DNAの免疫評価系の構築

    下里剛士, 北沢春樹, 遠野雅徳, 加藤真一郎, 川井泰, 斎藤忠夫

    日本畜産学会大会講演要旨 103rd 26 2004/03/20

    ISSN: 1342-4688

  135. ブタインターロイキン‐17(IL‐17)のクローニングとその特徴

    加藤真一郎, 北沢春樹, 下里剛士, 遠野雅徳, 川井泰, 斎藤忠夫

    日本畜産学会大会講演要旨 103rd 176 2004/03/20

    ISSN: 1342-4688

  136. AT oligonucleotide from "Immunobiotic" Lactobacillus gasseri augments immune responses via Toll-like receptor 9 signaling

    T. Shimosato, H. Kitazawa, M. Tohno, S. Katoh, Y. Kawai, T. Saito

    JOURNAL OF DAIRY SCIENCE 87 417-417 2004

    ISSN: 0022-0302

  137. Immunostimulatory activities of a novel AT oligonucleotide from "Immunobiotic" Lactobacillus gasseri on swine Peyer's patch cells

    H. Kitazawa, T. Shimosato, S. Katoh, M. Tohno, Y. Kawai, T. Saito

    JOURNAL OF DAIRY SCIENCE 87 417-417 2004

    ISSN: 0022-0302

  138. Immunostimulatory activities of a novel AT oligonucleotide from "Immunobiotic" Lactobacillus gasseri on swine Peyer's patch cells

    H. Kitazawa, T. Shimosato, S. Katoh, M. Tohno, Y. Kawai, T. Saito

    POULTRY SCIENCE 83 417-417 2004

    ISSN: 0032-5791

  139. AT oligonucleotide from "Immunobiotic" Lactobacillus gasseri augments immune responses via Toll-like receptor 9 signaling

    T. Shimosato, H. Kitazawa, M. Tohno, S. Katoh, Y. Kawai, T. Saito

    POULTRY SCIENCE 83 417-417 2004

    ISSN: 0032-5791

  140. Immunostimulatory activities of a novel AT oligonucleotide from "Immunobiotic" Lactobacillus gasseri on swine Peyer's patch cells

    H. Kitazawa, T. Shimosato, S. Katoh, M. Tohno, Y. Kawai, T. Saito

    JOURNAL OF ANIMAL SCIENCE 82 417-417 2004

    ISSN: 0021-8812

  141. AT oligonucleotide from "Immunobiotic" Lactobacillus gasseri augments immune responses via Toll-like receptor 9 signaling

    T. Shimosato, H. Kitazawa, M. Tohno, S. Katoh, Y. Kawai, T. Saito

    JOURNAL OF ANIMAL SCIENCE 82 417-417 2004

    ISSN: 0021-8812

  142. ブタToll‐like receptor(TLR)9の抗体作製と臓器発現部位の解析

    遠野雅徳, 北沢春樹, 下里剛士, 加藤真一郎, 川井泰, 渡辺康一, 山口高弘, 斎藤忠夫

    日本畜産学会大会講演要旨 102nd 70 2003/09/15

    ISSN: 1342-4688

  143. 乳酸菌からの免疫活性DNAモチーフの発見とブタToll様受容体トランスフェクタントによる活性評価系の構築

    Kitazawa, H, T. Saito

    食品工業 46 (14) 25-31 2003/07

    Publisher: 光琳

    ISSN: 0559-8990

  144. Discovery of immunostimulatory DNA motifs from lactic acid bacteria and their application to "Bio-Defence Foods"

    H Kitazawa, T Saito

    NIPPON NOGEIKAGAKU KAISHI-JOURNAL OF THE JAPAN SOCIETY FOR BIOSCIENCE BIOTECHNOLOGY AND AGROCHEMISTRY 76 (9) 833-836 2002

    DOI: 10.1271/nogeikagaku1924.76.833  

    ISSN: 0002-1407

  145. L. bulgaricus NIAI B6株からの免疫賦活化DNAモチーフの発見

    北沢春樹, 渡辺浩, 上羽悟史, 川井泰, 伊藤たか敏, 斎藤忠夫

    日本畜産学会大会講演要旨 99th 85 2001/08/25

    ISSN: 1342-4688

  146. ブタIL‐7のクローニングと乳用乳酸菌由来因子の腸管免疫に対する作用

    上羽悟史, 北沢春樹, 山口高弘, 川井泰, 斎藤忠夫, 伊藤たか敏

    日本畜産学会大会講演要旨 97th 70 2000/03/20

    ISSN: 1342-4688

Show all ︎Show first 5

Books and Other Publications 48

  1. 特集 生産性向上のカギ! 豚の腸内環境を整えよう. 養豚界 第60巻 第3号(通巻 736号)

    北澤春樹

    緑書房 2025/03/01

  2. Screening and Characterization of Immunobiotic Lactic Acid Bacteria with Porcine Immunoassay System

    Leonardo Albarracin, Valeria Garcia-Castillo, Julio Villena, Haruki Kitazawa

    2024/08

  3. Introduction of Spontaneous Mutations Using Streptomycin as a Method for Lactic Acid Bactria Breeding

    2024/08

  4. イムノバイオティクスを知ろう!イムノバイオティクスの研究とその将来性

    周 冰卉, 北澤春樹

    日本畜産振興会 2024/02/01

  5. イムノバイオティクスを知ろう!プロバイオティクスから(ポスト)イムノバイオティクス

    北澤春樹, 周 冰卉

    日本畜産振興会 2024/02/01

  6. 【用語解説】ポストイムノバイオティクス、畜産技術816号

    北澤春樹

    畜産技術協会 2023/05/01

  7. KIDNEY AND DIALYSIS

    2022/01/25

  8. Encyclopedia of Food Immunology

    2021/11

    ISBN: 9784254431261

  9. Encyclopedia of Food Immunology

    2021/11

    ISBN: 9784254431261

  10. Encyclopedia of Food Immunology

    2021/11

    ISBN: 9784254431261

  11. Encyclopedia of Food Immunology

    2021/11

    ISBN: 9784254431261

  12. Industrial Applications of Lactic Acid Bacteria

    2021/03/22

  13. 農学生命科学を学ぶための入門生物学[改訂版](鳥山欽哉 編)

    北澤春樹*

    東北大学出版会 2020/01/31

    ISBN: 9784861633430

    More details Close

    1年次 生命科学Aおよび生命科学概論の教科書として使用

  14. Screening and characterization of immunobiotic lactic acid bacteria with porcine immunoassay systems. Lactic Acid Bacteria: Methods and Protocols (Ed. M. Kanauchi)

    Castillo, VG, L. Albarracín, H. Kitazawa, J. Villena

    Meth. Mol. Biol 2018/10

    ISBN: 9781493989072

  15. 消化管からみた健康・栄養(日本栄養・食糧学会監修)分担

    北澤春樹

    建帛社 2018/05

  16. EBook (Immunobiotics: Interactions of Beneficial Microbes With the Immune System) Total 309 pages

    Villena, J, H. Kitazawa

    Foront. Immunol., Front. Microbiol. 2018/01

    More details Close

    Front. Immunol. とFront. Microbiol.の特別号としてImmunobiotics: Interactions of Beneficial Microbes With the Immune Systemを編集(自身の投稿も含め)し、投稿論文の審査をするとともに、アクセプトされた論文の内容をまとめ、全論文を含めた電子著書を発刊することができた。

  17. 動物用ワクチンとバイオ医薬品ー新たな潮流ー(動物用ワクチンーバイオ医薬品研究会監修)

    北澤春樹

    文永堂出版 2017/07/25

  18. 食と微生物の事典

    北澤春樹, 本勝ひこ

    朝倉書店 2017/07/25

  19. ヨーグルトの事典(齋藤忠夫 他編)

    北澤春樹

    朝倉書店 pp273-278 2016/04/20

    More details Close

    乳製品ヨーグルト(発酵乳)の歴史・文化・栄養・微生物などの側面からまとめた事典。

  20. Fighting Intestinal Infections with Immunobiotic Lactic Acid Bacteria. Recent Trends in Immunology (Ed. Shabir Ahmad Mir)

    Villena, J, H. Zelaya, S. Rojas-Caro, S. Alvarez, A. Garcia, H. Kitazawa

    SM Online Publishers LLC, pp1-25 2015/05/10

  21. Cellular and Molecular Immunology (7th edition)

    Kitazawa, H, T. Shimazu

    Elsevier Japan 2014/11/14

    More details Close

    免疫学テキストとして、世界中の数多くの名門校で採用され、版を重ねている免疫学教科書の決定版の訳本。国内においても高く評価され、広く教科書として利用されている。

  22. 牛病学(第3版)(分担) 明石博臣 他編

    北澤春樹

    (株)近代出版 2013/10

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    獣医・畜産学の教科書 牛病学(第4版)

  23. Modulation of mucosal antiviral immune response by immunobiotic lactic acid bacteria – Part I: the intestinal mucosa, Microbial pathogens and strategies for combating them: science, technology and education (Ed. A. Mendez-Vilas)

    Villena, J, M.G. Vizoso-Pinto, V. Rodriguez, S. Salva, S. Alvarez, H. Kitazawa

    Formatex Research Center 2013/10

  24. Modulation of mucosal antiviral immune response by immunobiotic lactic acid bacteria – Part II: the respiratory mucosa, Microbial pathogens and strategies for combating them: science, technology and education (Ed. A. Mendez-Vilas)

    Villena, J, M.G. Vizoso-Pinto, V. Rodriguez, H. Kitazawa, S. Salva, S. Alvarez

    Formatex Research Center 2013/10

  25. Preface, Probiotics: Immunobiotics and Immunogenics (Eds. H. Kitazawa, J. Villena & S. Alvarez))

    H. Kitazawa, J. Villena, S. Alvarez

    CRC Press 2013/09/24

  26. CH01 Introduction, Probiotics: Immunobiotics and Immunogenics (Eds. H. Kitazawa, J. Villena & S. Alvarez)

    J. Villena, S. Alvarez, H. Kitazawa

    CRC Press 2013/09/24

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    編集長として英文著書を作成した。

  27. CH04 Molecular Immunoassay Systems for Probiotics via Pattern Recognition Receptors, Probiotics: Immunobiotics and Immunogenics (Eds. H. Kitazawa, J. Villena & S. Alvarez)

    M. Tohno, H. Kitazawa

    CRC Press 2013/09/24

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    編集長として英文著書を作成した。

  28. CH05 Role of Toll-like Receptors in the Modulation of Intestinal Inflammation by Immunobiotics, Probiotics: Immunobiotics and Immunogenics (Eds. H. Kitazawa, J. Villena & S. Alvarez)

    J. Villena, H. Kitazawa

    CRC Press 2013/09/24

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    編集長として英文著書を作成した。

  29. CH13 Immunogenics: Immunostimulatory Oligodeoxynucleotides from Probiotics, Probiotics: Immunobiotics and Immunogenics (Eds. H. Kitazawa, J. Villena & S. Alvarez)

    T. Shimosato, H. Kitazawa

    CRC Press 2013/09/24

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    編集長として英文著書を作成した。

  30. Probiotics: Immunobiotics and Immunogenics (Eds. H. Kitazawa, J. Villena & S. Alvarez)

    H. Kitazawa, J. Villena, S. Alvarez

    CRC Press 2013/09

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    編集長として英文著書を作成した。

  31. NHKテレビテキスト「きょうの料理ビギナーズ」5月号(大庭英子 監修)(分担) 「ビギラボ」ヨーグルト最前線(食生活と免疫力)

    北澤春樹

    NHK出版 2013/04/21

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    NHKからの取材を受けた内容を掲載

  32. Probiotics: Sources, Types and Health Benefits

    Villena, J, H. Aso, S. Alvarez, H. Kitazawa

    Nova Science Publishers, Inc., pp53-84 2012/07

  33. 畜産物利用学(分担) 齋藤忠夫・根岸晴夫・八田 一編

    北澤春樹

    文永堂出版(株) 2011/09/30

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    畜産物利用学の教科書として、1998年に発行された「動物資源利用学」の改定版として発刊された。

  34. Advanced Technologies for Adjuvant Research and Development

    下里剛士, 北澤春樹

    シーエムシー出版 pp100-106 2011/08/24

  35. 農学・生命科学のための学術情報リテラシー(分担) 齋藤忠夫編

    北澤春樹

    朝倉書店 2011/07/10

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    農学・生命科学のための文献調査法をまとめた教科書として国内ではじめて発刊された。

  36. 食品免疫・アレルギーの事典(分担)日本食品免疫学会編

    北澤春樹

    朝倉書店 pp416-426 2011/05/30

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    日本食品免疫学会の編集で、食品や免疫学分野の第一線の研究者により基礎から応用を網羅した初めての事典。

  37. 農学生命科学を学ぶための入門生物学(分担)

    北澤春樹

    東北大学出版会 2011/05/10

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    生命科学一般の教科書として国内で利用されている。

  38. 乳酸菌とビフィズス菌のサイエンス(日本乳酸菌学会編)

    遠野雅徳, 北澤春樹

    京都大学学術出版会 2010/11/25

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    乳酸菌学会からの依頼により担当部分を執筆した。乳酸菌やビフィズス菌の分類・生理といった基礎から 多様な利用方法,操作技術までを一冊に詳説。

  39. Dendritic Cells; Types, Life Cycles and Biological Functions., (Eds. L. C. Welles)

    Miyazawa, K, T. Kanaya, S. Tanaka, H. Kitazawa, M. T. Rose, T. Yamaguchi, H. Aso

    Nova Science Publications, Inc. 2010/07

  40. Cellular and Molecular Immunology (5th edition)

    Kitazawa, H

    Elsevier Japan 2008/07/15

    More details Close

    免疫学テキストとして、ハーバード大学、コロンビア大学、マサチューセッツ工科大学など数多くの名門校で採用され、版を重ねている免疫学教科書の決定版の訳本。国内においても高く評価され、広く教科書として利用されている。

  41. プロバイオティクスからイムノバイオティクス〜生体認識機構の解明から期待される世界的発展性〜「世界の発酵乳」

    北澤春樹, 遠野雅徳

    はる書房 2008/07/07

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    (財)三島海雲記念財団「世界の発酵乳」受賞論文 カルピス(株)創業90周年を記念して若手研究者に対する研究論文を公募し,応募論文の中から2件選抜された.「不老長寿説」で知られるメチニコフがノーベル賞を受賞してから100年にあたる年にタイムリーに設定された限定企画で,記念すべき賞といえる.

  42. 農芸化学に学ぶ〜くらしにいきるバイオサイエンス/バイオテクノロジー〜(日本農芸化学会 編)(分担)

    北澤春樹, 川井 泰, 齋藤忠夫

    日本農芸化学会CD-ROM版 2006/03

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    高校生や一般市民向けの農芸化学に関するわかりやすい解説.日本農芸化学会創立80周年記念事業の一環でまとめられ,日本農芸化学会ホームページで公開されている.

  43. 応用生命科学のための生物学入門(改訂版)(分担)

    北澤春樹

    培風館 2003/11/12

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    生命科学一般の教科書として国内で利用されている。

  44. 畜産食品事典(細野明義 編)(分担)

    北澤春樹

    2002/03

  45. 「畜産食品微生物学」(細野明義編)(分担)

    北澤春樹

    朝倉書店 2000/01

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    動物食品学および食品衛生学の教科書

  46. Bio Defenceシリーズ4「食と生体防御−21世紀を生き抜くための健康増進戦略−」日本生体防御学会 森 勝義 編

    北澤春樹, 伊藤敞敏

    菜根出版 1999/04/08

  47. 乳業用乳酸菌と免疫修飾因子「21世紀の栄養・食糧科学を展望する」

    北澤春樹

    日本食品出版(株) 1999/03

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    日本学術会議 第17期栄養・食糧科学研究連絡委員会 監修で, 「若手研究者の挑戦」という企画の初回のシンポジウムの内容を中心にした論文集で,各委員による審査を経ており,評価および引用に耐えうる.

  48. Antimutagenic and antitumor activities of lactic acid bacteria, in Probiotics 2, Therapeutic and other beneficial effects(ed. R. Fuller)

    Hosono, A, H. Kitazawa, T. Yamaguchi

    Chapman & Hall 1997/04

Show all Show first 5

Presentations 503

  1. Study of Exopolysaccharides (EPS)-producing Bifidobacterium strains isolated from infant gut

    2025/03/08

  2. The molecular butterfly effect: how one single mutation can affect the response of the immune system to a beneficial microbe International-presentation International-coauthorship Invited

    Haruki Kitazawa, Julio Villena

    Summer School, University of Concepcion, Chili 2025/01/27

  3. 農学研究科の紹介/ 健康長寿を支えるイムノバイオティクスの魅力 Invited

    北澤春樹

    第3回 MICHINOOKセミナー Agriculture 2024/11/29

  4. "Post-Immunobiotics” : promising alternatives to combat viral infectious diseases Invited

    HARUKI KITAZAWA

    Novonesis Bioscience Forum 2024/11/01

  5. (ポスト)イムノバイオティクスの抗ウイルス免疫機能 Invited

    北澤春樹

    第26回OEB機能性食品分科会 2024/09/24

  6. 子宮切断術摘出・初乳未接種豚への糞便細菌叢移植実験系の構築

    須田遊人, 生井 楓, 宗田吉広, 西川明芳, 大橋誠一, 岸田なつみ, 橘 紅李, 今村圭哉, 松本夏歩, 福山皓太朗, 西山啓太, 北澤春樹, 宮﨑綾子

    日本畜産学会第132回大会 2024/09/18

  7. 植物由来L. delbrueckii TUA4408Lによる豆乳絞り粕(オカラ)発酵物給与による放牧豚の産肉性

    須田義人, 呂 官霖, 北澤 春樹

    日本畜産学会第132回大会 2024/09/18

  8. 「(ポスト)イムノバイオティクスの魅力と将来性」 Invited

    北澤春樹

    企業協賛シンポジウム1 畜産領域における抗病性イムノバイオティクスとDNAマーカー融合活用の将来性、日本畜産学会第132回大会 2024/09/17

  9. 乳汁の赤外分光スペクトルを用いた乳汁中免疫グロブリン濃度予測に影響を与える要因

    佐竹有理, 桂 哲平, 庄 涛, 浦川めぐみ, 中村武彦, 吉田 岳, 馬場俊見, 北澤春樹, 白川 仁, 野地智法, 芳賀 聡, 佐藤正寛, 麻生 久, 上本吉伸

    日本畜産学会第132回大会 2024/09/18

  10. 豚疾病と関連がある一塩基多型(SNP)と豚熱ワクチン初回接種時の抗体価との関連について

    鈴木香澄, 吉岡 豪, 新開浩樹, 伊藤智仁, 上西博英, 北澤春樹, 傍島英雄, 清水雅範

    日本畜産学会第132回大会 2024/09/18

  11. Establishment of a mitochondrial function evaluation system in porcine intestinal macrophages

    Nozomi Hariu, Fu Namai, Takato Takenouchi, Wakako Ikeda-Ohtsubo, Keita Nishiyama, Hirohide Uenishi, Haruki Kitazawa

    日本畜産学会第132回大会 2024/09/18

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    English Presentation Award (EPA)受賞

  12. Production of bioactive compounds through Food by-product metabolism by pig gut microbiota

    豊吉 瑛太, 生井 楓, 渡邊真広, 吉田安佑, 石原沙耶花, 小田巻俊孝, 大坪和香子, 前川正充, 西山啓太, 北澤春樹

    日本畜産学会第132回大会 2024/09/17

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    優秀発表賞エントリー

  13. 乳汁の赤外分光スペクトルを用いた乳汁中ラクトフェリン濃度の予測

    峰嶋悠伍, 佐竹有理, 庄 涛, 吉田岳, 馬場俊見, 北澤春樹, 白川仁, 芳賀聡, 佐藤正寛, 麻生久, 上本吉伸

    日本畜産学会第132回大会 2024/09/17

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    優秀発表賞エントリー

  14. 腸-肺軸を介する「ポストイムノバイオティクス」の抗ウイルス免疫機能評価 International-coauthorship

    福山 皓太朗, 生井 楓, 大坪 和香子, 西山 啓太, Julio Villena, 北澤 春樹

    日本畜産学会第132回大会 2024/09/17

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    優秀発表賞受賞

  15. 乳を基盤とした研究の深化と将来性 Invited

    北澤春樹

    日本畜産学会創立100周年記念公開講演会, 日本畜産学会だい132回大会 2024/09/16

  16. POSTIMMUNOBIOTICS FROM PORCINE SMALL INTESTINE International-presentation International-coauthorship Invited

    H. Kitazawa, Y. Imamura, H. Yamamuro, M. Elean, L. Arce, Fu Namai, K. Nishiyama, J. Villena

    VI International Symposium on Lactic Acid Bacteria - I Argentinean-Japanese Lactic Acid Bacteria “Tohoku Forum for Creativity” Meeting 2024/08/08

  17. ヒトと動物の健康を守るポストイムノバイオティクス Invited

    北澤春樹

    JST東北大学新技術説明会 2024/07/09

  18. Porcine small intestinal organoids to evaluate postimmunobiotics with anti-rotavirus activity International-presentation

    Kaho Matsumoto, Fu Namai, Yoshiya Imamura, Shota Araki, Keita Nishiyama, Haruki Kitazawa

    ACLAB14 2024/05/30

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    Best Oral Presentation Award

  19. プロバイオティック革命:「(ポスト)イムノバイオティクス」の魅力と将来性 Invited

    北澤春樹

    東北大学ヘルステックカレッジ 2023/06/13

  20. プロバイオティック革命:健康長寿を支える「(ポスト)イムノバイオティクス」の魅力 Invited

    北澤春樹

    美郷カレッジ 2023/12/16

  21. 動物とヒトの健康を守る「ポストイムノバイオティクス」の将来性 Invited

    北澤春樹

    第13回癌・炎症と抗酸化研究会 2023/11/25

  22. ブタ小腸オルガノイドを用いたポストイムノバイオティクスの評価系構築

    松本夏歩, 生井楓, 西山啓太, 宮崎綾子, 北澤春樹

    2023年度日本乳酸菌学会泊まり込みセミナー 2023/11/23

  23. 腸-肺軸を介して呼吸器抗ウイルス免疫を増強するイムノバイオティック乳酸菌の探索 International-coauthorship

    福山皓太朗, 北澤春樹, 会員外, 生井楓, 西山啓太, Julio Villena

    日本食品免疫学会 第19回学術大会(JAFI2023) 2023/11/14

  24. Effect of orally administered Ligilactobacillus salivarius and its CbpA mutant on TLR3-mediated intestinal immunity

    2023/09/20

  25. Isolation of immunobiotic candidates from maternal microbiota focusing on endogenous antibiotic factors International-coauthorship

    佐久間 大河, 扇 隆介, 櫻井 美月, 中野 祐香, Saha Sude, 生井 楓, 大坪 和香, 須田 義人, 西山 啓太, 北澤 春樹

    日本畜産学会第131回大会 2023/09/20

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    受賞:English Presentation Award

  26. Establishment of an antiviral immunobiotic evaluation system in porcine intestinal epithelial cells and macrophages International-coauthorship

    柴田 諒子, 今村 圭哉, 荒木 祥多, Sudeb Sah, 生井 楓, 宮崎 綾子, 宮澤 光太郎, 大坪 和香子, 西山 啓太, 北澤 春樹

    日本畜産学会第131回大会 2023/09/20

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    受賞:English Presentation Award

  27. ブタ腸管上皮細胞においてミトコンドリア機能を改善するポストイムノバイオティクスの探索

    生井 楓, 鈴木 眞依, 笠原 日菜子, 西山 啓太, 大坪 和香子, 北澤 春樹

    日本畜産学会第131回大会 2023/09/20

  28. 豚疾病と関連があるDNAマーカー多型と豚熱抗体価との関連について

    鈴木 香澄, 吉岡 豪, 新開 浩樹, 伊藤 智仁, 上西 博英, 北澤 春樹, 傍島 英雄, 清水 雅範

    日本畜産学会第131回大会 2023/09/20

  29. 植物由来L. delbrueckii TUA4408Lによる乳酸菌発酵オカラ添加給与による放牧豚の産肉性

    須田 義人, 呂 官霖, 北澤 春樹

    日本畜産学会第131回大会 2023/09/20

  30. NMRメタボロミクスによるワカメとイムノバイオティクス乳酸菌のシンバイオティクス効果の離乳子豚における検証

    宗田 吉広, 関山 恭代, 須田 智子, 松尾 賢吾, 高森 宏典, 須田 義人, 周 冰卉, 北澤 春樹

    日本畜産学会第131回大会 2023/09/20

  31. 新規抗ウイルス性「ポストイムノバイオティクス」の選抜・機構解明

    今村 圭哉, 荒木 祥多, 生井 楓, 宮﨑 綾子, 須田 遊人, 大坪 和香子, 西山 啓太, 北澤 春樹

    日本畜産学会第131回大会 2023/09/19

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    受賞:優秀発表賞

  32. 乳汁中免疫グロブリン濃度の遺伝性と赤外分光スペクトル分析を用いた予測法の開発による抗病性育種への可能性

    佐竹 有理, 桂 哲平, 遠藤 佑真, 庄 涛, 浦川 めぐみ, 中村 武彦, 吉田 岳, 馬場 俊見, 北澤 春樹, 白川 仁, 野地 智法, 麻生 久, 佐藤 正寛, 上本 吉伸

    日本畜産学会第131回大会 2023/09/19

  33. 乳腺上皮細胞における乳成分の炎症制御に関する基礎的研究

    福山皓太朗, 生井 楓, 周 冰卉, 大坪和香子, 西山啓太, 麻生 久, 北澤春樹

    酪農科学シンポジウム2023 2023/09/01

  34. Characterization of “Postimmunobiotics” from porcine small intestine International-presentation International-coauthorship Invited

    Yoshiya Imamura, Hikari Yamamuro, Binghui Zhou, Sudeb Saha, Fu Namai, Keita Nishiyama, Julio Villena, Haruki Kitazawa

    ACLAB13 2023/08/17

  35. Microbial therapeutics for lung cancer based on immune-checkpoint inhibitory scFv-producing engineered lactic acid bacteria International-presentation

    Fu Namai, Haruki Kitazawa, Takashi Sato, Takeshi Shimosato

    FEMS2023 2023/07/13

  36. Isolation and immunosynbiotic characterization of lactic acid bacteria from swine milk to generate a Lactobacillus library International-presentation International-coauthorship

    Binghui Zhou, Ryusuke Ohgi, Taiga Sakuma, Sudeb Saha, Mitsuki Sakurai, Yuka Nakano, Fu Namai, AKM, Humayun Kober, Wakako Ikeda-Ohtsubo, Keita Nishiyama, Haruki Kitazawa

    FEMS2023 2023/07/10

  37. Immunomodulatory effects of exopolysaccharides produced by Streptococcus thermophilus SBC8781 from soy or cow milk fermentation International-presentation International-coauthorship

    Hajime Nakata, Sudeb Saha, Masanori Hiramitsu, Takashi Inoue, Julio Villena, Haruki Kitazawa

    FEMS2023 2023/07/10

  38. Hypermucoviscous Klebsiella pneumoniae strains from sequence type 25 infect intestinal epithelial cells and stimulate inflammatory response International-presentation International-coauthorship

    Sudeb Saha, Stefania Dentice Maidana, Mariano Elean, Kohtaro Fukuyama, Juan Martin Vargas, Rodrigo Exequiel Serda, María Angela Jure, Haruki Kitazawa, Julio Villena

    FEMS2023 2023/07/10

  39. The choline-binding protein A is involved in the ability of Ligilactobacillus salivarius FFIG58 to modulate TLR3-medieted intestinal antiviral immunity in vivo International-presentation International-coauthorship

    Hikari Yamamuro, Yoshiya Imamura, Lorena Arce, Mikado Tomokiyo, Binghui Zhou, Sudeb Saha, Fu Namai, Wakako Ikeda-Ohtsubo, Keita Nishiyama, Julio Villena, Haruki Kitazawa

    FEMS2023 2023/07/10

  40. 緑茶葉より単離した乳酸菌のIL-12発現誘導の作用機序の解析 International-coauthorship

    鈴木 政彦, 辻川 勇治, 坂根 巌, Julio Villena, 北澤春樹, 薩 秀夫

    日本食品免疫学会第18回学術大会(JAFI2022) 2022/11/08

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    優秀発表賞受賞(48演題中4演題)

  41. Lactobacillus delbrueckii TUA4408Lが生産する抗ウイルス性イムノジェニクスの解明 International-coauthorship

    今村圭哉, 須田義人, 北澤春樹(会員外:船橋龍太郎、荒木祥太、周冰 卉、大坪和香子1、山下順弘、菅原 誠、Julio Villena、宮﨑綾子)

    日本食品免疫学会第18回学術大会(JAFI2022) 2022/11/08

  42. Postimmunobiotics: promising alternatives to combat viral infectious diseases Invited

    Haruki Kitazawa

    The Special Seminar in INSIBIO 2022/09/30

  43. 子豚の離乳時体重の高低による血液生化学性状値及び腸内細菌叢の比較

    鈴木 香澄, 吉岡 豪, 須田 智子, 新開 浩樹, 上西 博英, 北澤 春樹, 宗田 吉広

    日本畜産学会第130回大会 2022/09/16

  44. デュロック純粋種における産肉形質に関するMicrobiabilityの推定

    上本 吉伸, 本間 智尋, 廣瀬 健右, 伊藤 哲也, 上川 舞, 東間 千芽, 古川 了一, 北澤 春樹, 佐藤 正寛

    日本畜産学会第130回大会 2022/09/16

  45. Immunomodulatory potential of EPS produced by LAB for the dairy industry International-coauthorship

    HAFIZA MAHREEN MEHWISH, RIAZ RAJOKA, MUHAMMAD SHAHID, Kober AKM Humayun, Tomokiyo Mikado, Zhou Binghui, Wakako Ikeda-Ohtsubo, Haruki Kitazawa

    日本畜産学会第130回大会 2022/09/16

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    英語口頭発表

  46. Evaluation of anti-inflammatory immunobiotics in bovine mammary epithelial cells International-coauthorship

    福山 皓太朗, 高木 理宏, MD Aminul Islam、Muhammad, Shahid Riaz Rajoka, AKM, Humayun Kobe, 大坪 和香子, 野地 智, 麻生 久, Julio Villena, 北澤 春樹

    日本畜産学会第130回大会 2022/09/16

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    英語口頭発表

  47. Advanced development of an in-vitro IBD model for the selection of immunobiotics International-coauthorship

    笠原 日菜子, AKM Humayun Kober、Muhammad Shahid Riaz Rajoka, 周 冰卉, 大坪 和香子, Julio Villena, 北澤 春樹

    日本畜産学会第130回大会 2022/09/16

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    英語口頭発表

  48. Basic research on growth improvement of immunosynbiotic International-coauthorship

    周 冰卉, 劉 瑛琦, 櫻井 美月, AKM, Humayun Kober、Muhammad Shahid Riaz Rajoka, 大坪 和香子, Julio Villena, 北澤 春樹

    日本畜産学会第130回大会 2022/09/16

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    英語口頭発表

  49. 「ポストイムノバイオティクス」の呼吸器モデル系による抗ウイルス免疫評価 International-coauthorship

    友清 帝, 山室 ひかり, 柴田 涼子, 福山 皓太朗, Leonardo Albarracín, 大坪 和香子, Julio Villena, 北澤 春樹

    日本畜産学会第130回大会 2022/09/15

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    優秀発表賞受賞

  50. ロタウイルス感染低減性イムノバイオティクスの選抜及び評価

    荒木祥多, 北原秀悟, 扇 隆介, 櫻井美月, 周 冰卉, 庄 涛, 宮﨑綾子, 宮澤光太郎, 大坪和香子, 麻生 久, 北澤春樹

    酪農科学シンポジウム2022 2022/09/09

  51. Survival of immunobiotics in the GI tract for immunosynbiotic development International-coauthorship

    Binghui Zhou, AKM Humayun Kober, Muhammad Shahid Riaz Rajoka, Wakako Ikeda-Ohtsubo, Julio Villena, Haruki Kitazawa

    酪農科学シンポジウム2022 2022/09/09

  52. 乳酸桿菌表層タンパク由来イムノジェニクスの解明 International-coauthorship

    山室ひかり, 友清 帝, 柴田諒子, 周 冰卉, Julio Villena、Leonard Albarracin, 大坪和香子, 北澤春樹

    酪農科学シンポジウム2022 2022/09/09

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    優秀ポスター賞受賞(エントリー19演題中2題)

  53. (ポスト)イムノバイオティクス 免疫力を底上げする有用微生物の将来性 Invited

    北澤春樹

    宮城県食品産業協議会 令和4年度記念講演会 2022/06/20

  54. ポストイムノバイオティクスの将来性 Invited

    北澤春樹

    「革新的食学拠点」令和4年度第1回合同ミーティング 2022/05/26

  55. 安全安心な持続的家畜生産に貢献するイムノバイオティクス ~モルッカの新たな一面~ Invited

    北澤春樹

    国際養鶏養豚総合展(IPPS)2022 2022/04/28

  56. 「次世代継承型イムノバイオティクス」の創成 Invited

    北澤春樹

    第35回 秋田県 排尿・生殖研究会 2022/02/03

  57. Basic research on anti-viral Immunobiotics Invited

    2022/01/22

  58. イムノバオティクスの畜産応用基盤研究 Invited

    北澤春樹

    日本乳酸菌学会設立30周年記念シンポジウム(多様な乳酸菌研究と乳酸菌利用の新たな潮流)<家畜・飼料用のプロバイオティクス> 2021/11/27

  59. Antiviral immunobiotics and immunopostbiotics: promising alternatives to combat viral infectious diseases Invited

    Haruki Kitazawa

    Symposium 1: Next Probiotics and Immune Function, The 11th Asian Conference for Lactic Acid Bacteria, Tokyo, Japan 2021/11/05

  60. Immunomodulatory effects of lactobacilli from green tea leaf in murine macrophages and intestinal epithelial cells: the role of bacterial RNA

    Masahiko Suzuki, Tsukiho hiura, Hideo Satsu, Yuji Tsujikawa, Iwao Sakane, Julio Villena, Haruki Kitazawa

    The 11th Asian Conference for Lactic Acid Bacteria, Tokyo, Japan (online) 2021/11/05

  61. Functional and genomic characterization of immunobiotic lactobacilli for immunosynbiotic development

    Binghui Zhou, Yuhki Indo, Leonardo Albarracin, Yuki Masumizu, Md Aminul Islam, Wakako Ikeda-Ohtsubo, Hisashi Aso, Julio Villena, Haruki Kitazawa

    The 11th Asian Conference for Lactic Acid Bacteria, Tokyo, Japan (online) 2021/11/05

  62. L-フコース資化ビフィズス菌の単離と性状評価

    田村彩佳, 周 冰卉, 大坪和香子, 北澤春樹

    酪農科学シンポジウム2021 2021/09/24

  63. ロタウイルス感染低減性イムノバイオティクスのインビトロ評価

    北原秀悟, 荒木祥多, 扇隆 介, 櫻井美月, 周 冰卉, 庄 涛, 宮崎綾子, 宮澤光太郎, 大坪和香子, 麻生 久, 北澤春樹

    酪農科学シンポジウム2021 2021/09/24

  64. Advanced in vitro evaluation to explore novel anti-rotavirus immunobiotics International-coauthorship

    Shugo Kitahara, Shota Araki, Ryusuke Ogi, Mitsuki Sakurai, Binghui Zhou, Tao Zhuang, Ayako Miyazaki, Kohtaro Miyazawa, Wakako Ikeda-Ohtsubo, Hisashi Aso, Haruki Kitazawa

    日本畜産学会第129回大会 2021/09/15

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    English Presentation Award

  65. Development of transgenerational immunobiotic library with innate immune activation International-coauthorship

    Mitsuki Sakurai, Ryusuke Ohgi, Taiga Sakuma, Yuhka Nakano, Binghui Zhou, Yoshihito Suda, Md. Aminul Islam, Wakako Ikeda-Ohtsubo, Haruki Kitazawa

    日本畜産学会第129回大会 2021/09/15

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    English Presentation Award

  66. 豚空腸オルガノイドを活用したイムノバイオティクス菌株のロタウイルス増殖抑制効果のex vivo評価

    宮﨑綾子, 宮澤光太郎, 西川明芳, 須田遊人, 岸田なつみ, 髙木道浩, 下地善弘, 鈴木香澄, 吉岡 豪, 北原秀悟, 荒木祥多, 扇 隆介, 友清 帝, 北澤 春樹

    日本畜産学会第129回大会 2021/09/15

  67. Characterization of immunobiotics for survivability in the GI tract International-coauthorship

    Binghui Zhou, Yuhki Indo, Leonardo Albarracin, Yuki Masumizu, Md Aminul Islam, Wakako Ikeda-Ohtsubo, Hisashi Aso, Julio Villena, Haruki Kitazawa

    日本畜産学会第129回大会 2021/09/15

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    English Presentation Award

  68. Basic research on the development of immunosynbiotics

    Yingqi Liu, Binghui Zhou, Nozomi Oka, Kengo Matsuo, Hironori Takamori, Wakako Ikeda-Ohtsubo, Haruki Kitazawa

    日本畜産学会第129回大会 2021/09/15

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    English Presentation Award

  69. NOD2遺伝型が豚のと畜時の肺及び腸管病変に与える影響

    鈴木香澄, 新開浩樹, 吉岡 豪, 松本 敏美, 田中純二, 林 登, 北澤春樹, 上西博英

    日本畜産学会第129回大会 2021/09/15

  70. Development of synergy reinforcement in livestock health strategy Invited

    Resilience and Evolution of Animal Science (REAS) 2021/09/14

  71. Development of in vitro evaluation system for immunobiotics and immunogenetics in swine International-presentation Invited

    Haruki Kitazawa

    AGRITECH SEMINAR (Embassy of Belgium in Tokyo) 2021/06/24

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    イノベーション創出強化研究推進事業【基礎研究ステージ】の成果紹介

  72. (パラ)イムノバイオティクスの抗ウイルス食品・飼料免疫学的利用性 Invited

    北澤春樹

    第25回 腸内細菌学会学術集会 シンポジウム2 「感染症と腸内フローラ・腸管免疫」 2021/06/02

  73. ブタパターン認識受容体遺伝子型と抗病性関連形質との関連性

    一関 可純, 上西 博英, 松本 敏美, 岡 希, 高森 広典, 門脇 宏, 柴田 千尋, 鈴木 英作, 岡村 俊宏, 北澤 春樹, 麻生 久, 佐藤 正寛, 鈴木 啓一, 上本 吉伸

    日本畜産学会第128回大会 2021/03/29

  74. Immunododulatory properties and the genomic studies of immunobiotics and immunosynbiotic characterization

    周 冰卉, 犬童 優樹, Leonardo Albarracin, 舛水 由季, Aminul Islam, 大坪 和香子, 麻生 久, Julio Villena, 北澤 春樹

    日本畜産学会第128回大会 2021/03/29

  75. ワカメ加工残渣の給与が離乳子豚の腸内細菌叢及び免疫機能に及ぼす影響

    岡 希, 高森 広典, 麻生 久, 鈴木 啓一, 北澤 春樹, 上本 吉伸, 須田 義人, 島津 朋之, 上西 博英, 新開 浩樹, 宗田 吉広

    日本畜産学会第128回大会 2021/03/29

  76. Lactobacillus plantarum CRL1506における抗ウイルス性イムノジェニクスの解明

    舟橋 龍太郎, 水野 滉也, 友常 加恵, 友清 帝, Md. Aminul Islam、Leonardo Albarracín, 大坪 和香子, 麻生 久, Julio Villena, 北澤 春樹

    日本畜産学会第128回大会 2021/03/28

  77. ウシ乳腺上皮細胞によるイムノバイオティクスの選抜・評価系構築

    福山 皓太朗, 高木 理宏, Md. Aminul Islam, Leonardo Albarracin, 須田 義人, 大坪 和香子, 野地 智法, 麻生 久, Julio Villena, 北澤 春樹

    日本畜産学会第128回大会 2021/03/29

  78. 植物性発酵乳における菌体外多糖の免疫活性

    仲田 創, 友清 帝, 北原 秀悟, 平光 正典, 井上 孝司, 北澤 春樹

    日本農芸化学会2021年度大会 2021/03/20

  79. 同所飼育環境下のウマにおける腸内常在細菌の個体間伝播 International-coauthorship

    大坪和香子, Jasper A.J. Eikelboom, 山川雄大, 米山 裕, 西村順子, 北澤春樹

    日本ウマ科学会 2020/11/30

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    最優秀発表賞受賞 優秀発表賞5名よりさらに1名選出

  80. 新規イムノバイオティクス候補となる酪農乳酸菌の特異的検出・同定のための新規プラ イマーの開発

    土田 咲絵, 大坪 和香子, 須田 義人, 北澤 春樹

    日本乳酸菌学会2020年度大会 2020/11/27

  81. Role of lipoteichoic acid in the ability of Lactobacillus plantarum CRL1506 to modulate intestinal innate antiviral immune response International-coauthorship

    Arce, L., Y. Suda, J. Villena, H. Kitazawa

    日本食品免疫学会2019年度大会(JAFI 2019)設立15周年記念学術大会 2019/11/19

  82. Selection of new immunobiotic strains with antiviral effect in local and distal mucosal sites by using porcine intestinal epitheliocytes International-coauthorship

    Albarracin, L., Y. Suda, J. Villena, H. Kitazawa

    日本食品免疫学会2019年度大会(JAFI 2019)設立15周年記念学術大会 2019/11/19

  83. Evaluation of the immunomodulatory ability of proteolitic Lactobacillus starns and their derivatives b-casein hydrolysates International-coauthorship

    Elean, M., Y. Suda, J. Villena, H. Kitazawa

    日本食品免疫学会2019年度大会(JAFI 2019)設立15周年記念学術大会 2019/11/19

  84. Development of an immunobiotic evaluation system using bovine mammary epithelial cells International-presentation

    Takagi, M, R. Komatsu, L. Albarracin, F. Mansilla, Md A. Islam, Y. Suda, W. Ikeda-Ohtsubo, T. Nochi, G. Vignolo, H. Aso, J. Villena, H. Kitazawa

    LXVII REUNION CIENTIFICA ANUAL de la Sociedad Argentina de Inmunologia 2019/10/10

  85. Lactobacillus salivarius TUCO-L2 isolated from lama glama milk differentially modulate toll-like receptor 4-mediated innate immunity in porcine intestinal epithelial cells International-presentation

    Mansilla, F, S. Quilodran Vega, M. Takagi, L. Albarracin, H. Aso, H. Takahashi, H. Kitazawa, J. Villena

    LXVII REUNION CIENTIFICA ANUAL de la Sociedad Argentina de Inmunologia 2019/10/10

  86. Islam, Md A., H. Iida, M. Tohno, R. Ohgi, L. Albarracin, W. Ikeda-Ohtsubo, A. Miyazaki, H. Uenishi, Y. Suda, N. Iwabuchi, J.-z. Xiao, J. Villena, H. Kitazawa International-presentation

    Indo, Y, Y. Masumizu, B. Zhou, Md A. Islam, A. Miyazaki, W. Ikeda-Ohtsubo, Y. Suda, H. Aso, J. Villena, H. Kitazawa

    LXVII REUNION CIENTIFICA ANUAL de la Sociedad Argentina de Inmunologia 2019/10/09

  87. Modulation of peptidoglycan recognition proteins-mediated porcine intestinal innate immunity by paraimmunobiotic bifidobacteria International-presentation

    Islam, Md A, H. Iida, M. Tohno, R. Ohgi, L. Albarracin, W. Ikeda-Ohtsubo, A. Miyazaki, H. Uenishi, Y. Suda, N. Iwabuchi, J.-z. Xiao, J. Villena, H. Kitazawa

    LXVII REUNION CIENTIFICA ANUAL de la Sociedad Argentina de Inmunologia 2019/10/09

  88. Tomotsune, K., F. Raya Tonetti, Md A. Islam, L. Albarracin, H. Mizuno, R. Ortiz Moyano, S. Salva, S. Alvarez, H. Takahashi, H. Kitazawa, J. Villena International-presentation

    Mizuno, H, L. Arce, D. Vera, K. Tomotsune, Md A. Islam, G. Vizoso Pinto, L. Albarracin, H. Takahashi, H. Kitazawa, J. Villena

    LXVII REUNION CIENTIFICA ANUAL de la Sociedad Argentina de Inmunologia 2019/10/09

  89. Adhesion to the intestinal mucosa is not necessary for Lactobacillus rhamnosus CRL1505 to exert its immunomodulatory activities in local and distal mucosal sites International-presentation

    Tomotsune, K, F. Raya Tonetti, Md A. Islam, L. Albarracin, H. Mizuno, R. Ortiz Moyano, S. Salva, S. Alvarez, H. Takahashi, H. Kitazawa, J. Villena

    LXVII REUNION CIENTIFICA ANUAL de la Sociedad Argentina de Inmunologia 2019/10/09

  90. The molecular interaction of paraimmunobiotics and immunosynbiotics with intestinal epithelial cells and their influence in the resistance to infections International-presentation Invited

    Kitazawa, H, J. Villena

    SYMPOSIUM I: INFECTION AND IMMUNITY, LXVII REUNION CIENTIFICA ANUAL de la Sociedad Argentina de Inmunologia 2019/10/09

  91. Mucus-binding factor regulate the adhesion ability of Lactobacillus rhamnosusto intestinal mucosa

    友常加惠, 水野滉也, 周 冰卉, 犬童優樹, Julio Villena、Leonardo Albarracin, Md, Aminul Islam, 西山啓太, 大坪和香子, 北澤 春樹

    日本畜産学会第126回大会 2019/09/18

  92. Anti-viral immunobiotics from porcine small intestine

    犬童優樹, Binghui Zhou, MD. Aminul Islam, 宮崎綾子, 大坪和香子, 須田義人, 麻生 久, Julio Villena, 北澤春樹

    日本畜産学会第126回大会 2019/09/18

  93. イムノバイオティクスからイムノシンバイオティクス-その開発と将来性- Invited

    北澤春樹

    動物用ワクチン-バイオ医薬品研究会シンポジウム「プロバイオティクスによる動物の疾病制御技術の基礎と応用」 2019/09/12

  94. 酪農家畜の初乳における糖ヌクレオチドおよび糖-1-リン酸の分析

    峰口祐里, 後藤京介, 首藤悠那, 柏木啓利, 北澤春樹, 朝隈貞樹, 福田健二, 浦島 匡

    酪農科学会シンポジウム2019 2019/08/23

  95. オキナワモズクフコイダンのプレバイオティクス効果の研究

    大坪和香子, 有川優希, 鈴木 錠, 田村彩佳, 北澤春樹

    酪農科学会シンポジウム2019 2019/08/23

  96. 新規イムノバイオティクス開発のための酪農乳酸菌の検出と同定

    土田咲絵, 大坪和香子, 須田義人, 北澤春樹

    酪農科学会シンポジウム2019 2019/08/23

  97. Selection of wakame assimilative Lactobacilli and in vitro evaluation of their immunomodulatory potentials

    Binghui Zhou, Yuki Masumizu, Yuhka Nakano, Yuhki Indo, Ryoya Komatsu, Md Aminul Islam, Wakako Ikeda-Ohtsubo, Leonardo Albarracin, Yoshihito Suda, Keiichi Suzuki, Hisashi Aso, Julio Villena, Haruki Kitazawa

    酪農科学会シンポジウム2019 2019/08/23

  98. イムノバイオティックLactobacillus rhamnosusのMBFノックアウト株の樹立

    友常加惠, 水野滉也, 周 冰卉, Leonardo Albarracin, M, Aminul Islam, 西山啓太, 大坪和香子, Julio Villena, 佐々木泰子, 北澤春樹

    酪農科学会シンポジウム2019 2019/08/23

  99. 炎症性腸疾患in vitroモデル系によるイムノバイオティック評価

    湯澤真央, 佐藤 菜, 小松稜弥, 高木理宏, 大坪和香子, 麻生 久, 北澤春樹

    酪農科学会シンポジウム2019 2019/08/23

  100. Immunobiotic Lactobacillus jensenii TL2937 Alleviates Dextran Sodium Sulfate-Induced Colitis in Mice International-presentation

    Islam, Md. A, V. Garcia-Castillo, N. Sato, L. Albarracin, H. Kitazawa, J. Villena

    FEMS2019 2019/07/07

  101. Selection of wakame assimilative Lactobacilli and in vitro evaluation of their immunomodulatory potentials International-presentation

    Zhou, B, Y. Masumizu, Y. Nakano, Y. Indo, R. Komatsu, Md A. Islam, W. Ikeda-Ohtsubo, L. Albarracin, Y. Suda, K. Suzuki, H. Aso, J. Villena, H. Kitazawa

    FEMS2019 2019/07/07

  102. 植物性乳酸菌TUA4408L菌株による発酵大豆搾り粕を給与した豚の健康性および産肉性への効果

    加川響馬, 岡本美樹, 江草信太郎, 島 知世, 菅原 誠, 寺嶋祐司, 須田義人, 北澤春樹

    日本畜産学会第125回大会 2019/03/29

  103. Microarray analysis of bovine mammary epithelial cells stimulated with mastitis pathogens

    Michihiro Takagi, Ryoya Komatsu, Julio Villena, Leonardo Albarracin, Md Aminul Islam, Yoshihito Suda, Wakako Ikeda-Ohtsubo, Tomonori Nochi, Hisashi Aso, Haruki Kitazawa

    日本畜産学会第125回大会 2019/03/29

  104. Construction of porcine immunobiotics library

    Yuhka Nakano, Yuki Masumizu, Ryusuke Ohgi, Leonardo Albarracin, Wakako Ohtsubo, Md Aminul Islam, Yoshihito Suda, Julio Villena, Tomonori Nochi, Haruki Kitazawa

    日本畜産学会第125回大会 2019/03/29

  105. Exopolysaacharides of PS in Streptococcus. thermophilus has potentials to against virus infection

    Hiroya Mizuno, Yasuko Sasaki, Kae Tomotsune, Yuhki Indo, Julio Villena, Leonardo Albarracin, Md Aminul Islam, Wakako Ikeda-Ohtsubo, Katsunori Kimura, Hisashi Aso, Julio Villena, Haruki Kitazawa

    日本畜産学会第125回大会 2019/03/29

  106. Selection of wakame utilizing lactobacilli adhering to porcine intestinal mucin and epitheliocytes

    Binghui Zhou, Yuki Masumizu, Yuhka Nakano, Yuhki Indo, Ryoya Komatsu, Md Aminul Islam, Wakako Ohtsubo, Yoshihito Suda, Keiichi Suzuki, Hisashi Aso, Haruki Kitazawa

    日本畜産学会第125回大会 2019/03/29

  107. Advanced in vitro evaluation system for selecting anti-diarrheal immunobiotics

    Ryoya Komatsu, Hikaru Iida, Leonardo Albarracín, Md Aminul Islam, Wakako Ikeda-Ohtsubo, Hisashi Aso, Noriyuki Iwabuchi, Jin-zhong Xiao, Tadao Saito, Julio Villena, Haruki Kitazawa

    2019/03/28

  108. ワカメ加工残渣の添加給与が離乳子豚の発育及び抗病性に及ぼす効果

    岡 希, 高森広典, 鈴木啓一, 北澤春樹, 上本吉伸, 須田義人, 島津朋之, 麻生 久

    第110回日本養豚学会大会 2019/03/12

  109. プロバイオティクスからイムノバイオティクス:小腸局所からの発信 Invited

    北澤春樹

    神戸大学農工連携次世代バイオプロダクション(iBioK)主催フォーラム 2019/01/31

  110. 乳酸菌の免疫調節機能性 ~イムノジェニクスのパワー~ Invited

    北澤春樹

    指導者のための健康・栄養セミナー(日本栄養士会・宮城県栄養士会) 2018/11/18

  111. ウシ乳腺上皮細胞によるイムノバイオティック評価系構築に関する基礎的研究

    高木 理宏, 小松 稜弥, 須田 義人, 北澤 春樹

    日本食品免疫学会第14回学術大会 2018/11/15

  112. 家畜対応型イムノバイオティクスの選抜・評価と将来性 Invited

    北澤春樹

    飼料品質改善協議会2018年度例会 2018/11/08

  113. Adhesion ability of bifidobacteria to human intestine

    Binghui Zhou, Noriyuki Iwabuchi, Ohtsubo (Ikeda) Wakako, Jin-zhong Xiao, Tadao Saito, Haruki Kitazawa

    酪農科学シンポジウム2018 2018/09/14

  114. 海藻多糖のプレバイオティクス機能の探索

    有川優希, 大坪和香子, 木村一雅, 伊波匡彦, 嘉手納 築, 齋藤忠夫, 北澤春樹

    酪農科学シンポジウム2018 2018/09/14

  115. イムノバイオティクスによる家畜健全育成から畜産物の安全性向上をめざす! Invited

    北澤春樹

    酪農科学シンポジウム2018 2018/09/14

  116. 家畜健全育成におけるイムノバイオティクスの選抜評価と発展的利用性

    北澤春樹

    第161回日本獣医学会学術集会 微生物学分科会シンポジウム1 2018/09/11

  117. Comparative study of the immunomodulatory activities of lactobacilli strains in porcine intestinal epithelial cells: effect on the innate antiviral immune response International-presentation

    Albarracín, L, V. Garcia-Castillo, H. Iida, N. Sato, P. Kanmani, A. Ilabaca, H. Aso, A. Garcia-Cancino, H. Kitazawa, J. Villena

    XII Congress of the Latin American Association of Immunology (ALAI) and XXIII Congress of the Mexican Society of Immunology (SMI) 2018/05/14

  118. Lactobacillus fermentum UCO-979C beneficially modulates the innate immune response triggered by Helicobacter pylori infection International-presentation

    V. Garcia-Castillo, H. Zelaya, A. Ilabaca, M. Espinoza-Monje, R. Komatsu, L. Albarracín, H. Kitazawa, A. Garcia-Cancino, J. Villena

    XII Congress of the Latin American Association of Immunology (ALAI) and XXIII Congress of the Mexican Society of Immunology (SMI) 2018/05/14

  119. Immunomodulatory properties of microcapsules containing Lactobacillus rhamnosus UCO-25A in planktonic o biofilm forms: impact on intestinal and systemic immunity International-presentation

    A. Ilabaca, P. Clua, S. Salva, V. Garcia-Castillo, L. Albarracín, H. Kitazawa, S. Alvarez, A. Garcia-Cancino, J. Villena

    XII Congress of the Latin American Association of Immunology (ALAI) and XXIII Congress of the Mexican Society of Immunology (SMI) 2018/05/14

  120. Immunobiotic bifidobacteria: Interactions of beneficial microbes with the immune system International-presentation

    International Symposium on Bifidobacteria for Human Health -New Innovations of Bifidobacteria Research- 2018/01/28

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    森永乳業総業100周年記念の国際シンポジウム。500名の参加者。

  121. Lactobacillus delbrueckii OLL1073R-1由来菌体外多糖のブタ腸管上皮細胞における抗ウイルス自然免疫修飾

    小松稜弥, 須田義人, 牧野聖也, 狩野 宏, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第13回学術大会 2017/11/09

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    1.5分間の口頭発表も含まれる。

  122. 植物由来L. delbrueckii TUA4408Lによる豆乳絞り粕(オカラ)発酵物を給与した豚の健康性および産肉性の検討

    岡本美樹, 須田義人, 北澤春樹

    日本食品免疫学会 第13回学術大会 2017/11/09

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    1.5分間の口頭発表も含まれる。

  123. Effect of common ligands for TLRs on adipogenesis and inflammation in porcine adipocytes

    Manami Igata, AKM. H. Kober, Aska Tada, Leonardo Albarracin, Wakako Ikeda-Ohtsubo, Hisashi Aso, Kazutoyo Yoda, Kenji Miyazawa, Fang He, Tadao Saito, Julio Villena, Haruki Kitazawa

    日本畜産学会第123回大会 2017/09/04

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    優秀発表賞エントリー

  124. Development of advanced evaluation system of anti-disease immunobiotics

    Ryoya Komatsu, Hikaru Iida, AKM. H. Kober, Leonardo Albarracin, Yoshihito Suda, Wakako Ikeda-Ohtsubo, Hisashi Aso, Noriyuki Iwabuchi, Jin-zhong Xiao, Tadao Saito, Julio Villena, Haruki Kitazawa

    日本畜産学会第123回大会 2017/09/04

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    英語発表賞エントリー

  125. "Immunosynbiotics" approach by using wakame and immunobiotics as livestock healthy growth strategy

    Yuhka Nakano, Yuki Masumizu, AKM. H. Kober, Valeria Garcia, Wakako Ikeda-Ohtsubo, Yoshihito Suda, Keiichi Suzuki, Tadao Saito, Julio Villena, Haruki Kitazawa

    日本畜産学会第123回大会 2017/09/04

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    英語発表賞エントリー

  126. PIP細胞におけるTLRを介する脂質/免疫関連因子のトランスクリプトーム解析

    井形愛美, AKM H. Kobe, 多田明日翔, Leonardo Albarracin, 大坪和香子, 麻生 久, 宮澤賢司, 依田一豊, 何 方, 齋藤忠夫, J. Villena, 北澤春樹

    2017年度 酪農科学シンポジウム 2017/08/18

  127. Lactobacillus bulgaricusのラクトース取込みの対向輸送解析と低ガラクトースヨーグルトの開発

    山田滉介, 大坪和香子, 北澤春樹, 齋藤忠夫

    2017年度 酪農科学シンポジウム 2017/08/18

  128. 発酵乳に利用されるビフィズス菌のハチミツオリゴ糖資化性の検討

    澤田侑希, 大坪和香子, 北澤春樹, 齋藤忠夫

    2017年度 酪農科学シンポジウム 2017/08/18

  129. Tracscriptomic analysis on the response of porcine adipocytes to common microbial ligands International-presentation

    Igata, M, A. Tada, AKM H. Kober, L. Albarracín, W. Ikeda-Ohtsubo, H. Aso, K. Yoda, K. Miyazawa, F. He, T. Sait, J. Villena, H. Kitazawa

    FEMS2017 2017/07/09

  130. The respiratory commensal bacteria Corynebacterium pseudodiphtheriticum 090104 improves respiratory antiviral innate immunity International-presentation

    Kober, AKM H, P. Clua, A. Tada, G. Vizoso-Pinto, P. Kanmani, C. Rodriguez, H. Iida, F. Raya-Tonetti, S. Salva, S. Alvarez, V. Melnikov, H. Kitazawa, J. Villena

    FEMS2017 2017/07/09

  131. Effect of immunobiotic Bifidobacteria on the innate antiviral immune response in bovine intestinal epithelial cells: immunotranscriptomic analysis International-presentation

    Kober, AKM H, P. Clua, A. Tada, G. Vizoso-Pinto, P. Kanmani, C. Rodriguez, H. Iida, F. Raya-Tonetti, S. Salva, S. Alvarez, V. Melnikov, H. Kitazawa, J. Villena

    FEMS2017 2017/07/09

  132. ブタ腸管由来ワカメ資化性乳酸菌のイムノバイオティック利用性

    舛水由季, 飯田ひかる, 須田義人, 大坪和香子, 麻生 久, 齋藤忠夫, 鈴木啓一, 北澤春樹

    日本畜産学会第122回大会 2017/03/28

  133. ブタ腸管におけるペプチドグリカン認識タンパク質の発現とその調節機構

    飯田ひかる, 遠野雅徳, 須田義人, 大坪和香子, 齋藤忠夫, フリオ ヴィレーナ, 北澤春樹

    日本畜産学会第122回大会 2017/03/28

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    優秀発表賞エントリー

  134. 豚飼料へのワカメ茎粉末添加給与が子豚の免疫能、腸内微生物叢に及ぼす効果

    陸拾七, 佐藤正寛, 北澤春樹, 須田義人, 高橋伸和, 斎藤隼人, 鈴木啓一

    日本畜産学会第122回大会 2017/03/28

  135. マウス腸管上皮 M 細胞におけるアルドラーゼ A 受容体の探索

    鈴木 京, 長澤裕哉, 田中孝太朗, 庄 涛, 田口輝明, 北澤春樹, 渡邊康一, 野地智法, 麻生 久

    日本畜産学会第122回大会 2017/03/28

  136. 炎症性腸疾患を悪化させる硫酸基還元細菌に対するビフィズス菌の付着阻害作用の研究

    日下練介, 大坪和香子, 北澤春樹, 齋藤忠夫

    日本畜産学会第122回大会 2017/03/28

  137. L. delbrueckii TUA4408Lによる豆乳発酵物を給与した豚の健康性および産肉性の検討

    須田義人, 北澤春樹

    日本食品免疫学会 第12回学術大会 2016/11/09

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    1.5分間の口頭発表も含まれる。

  138. 畜産食品の安全性向上に寄与するブタ由来ワカメ資化性乳酸菌のイムノバイオティック利用性

    舛水由季, 飯田ひかる, 須田義人, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第12回学術大会 2016/11/09

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    1.5分間の口頭発表も含まれる。

  139. 炎症性腸疾患予防・改善のための発展的イムノバイオティック評価系構築

    佐藤 菜, 飯田ひかる, 舛水由季, 須田義人, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第12回学術大会 2016/11/09

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    1.5分間の口頭発表も含まれる。

  140. Immunoregulatory effects of lactic acid bacterial exopolysaccharides: new insights into molecular intestinal epithelial cells International-presentation

    Haruki Kitazawa

    V International Symposium on Lactic Acid Bacteria - Benefitting from lactic acid bacteria, Progress in health and food - 2016/10/19

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    特別教育講演 アルゼンチン独立200周年記念行事 日本学術振興会二国間交流事業

  141. Isolation and characterization of Lactobacillus plantarum MPL16: A Wakame-utilizing immunobiotic strain from swine feces International-presentation

    Masumizu, Y, AKM H. Kober, B. Tzu-An Chao, H. Iida, W. Ikeda-Ohtsubo, Y. Suda, L. Albarracin, L. Saavedra, E.M. Hebert, T. Nochi, H. Aso, T. Saito, K. Suzuki, J. Villena, H. Kitazawa

    V International Symposium on Lactic Acid Bacteria - Benefitting from lactic acid bacteria, Progress in health and food - 2016/10/19

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    日本学術振興会二国間交流事業およびCOLABS派遣ブログラム アルゼンチン独立200周年記念行事

  142. Development of immunobiotic evaluation system on porcine intestinal epitheliocytes stimulated by dextran sodium sulfate International-presentation

    Sato, N, AKM H. Kober, H. Kobayashi, A. Tada, H. Iida, Y. Masumizu, W. Ikeda-Ohtsubo, T. Nochi, H. Aso, T. Saito, J. Villena, H. Kitazawa

    V International Symposium on Lactic Acid Bacteria - Benefitting from lactic acid bacteria, Progress in health and food - 2016/10/19

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    日本学術振興会二国間交流事業およびCOLABS派遣ブログラム アルゼンチン独立200周年記念行事

  143. Comparative Immunotranscriptomic analysis of two immunobiotic strains with antiviral capabilities in porcine intestinal epithelial cells International-presentation

    Albarracin, L, H. Kobayashi, N. Sato, Y. Masumizu, T. Nochi, H. Aso, S. Salva, S. Alvarez, H. Kitazawa, J. Villena

    V International Symposium on Lactic Acid Bacteria - Benefitting from lactic acid bacteria, Progress in health and food - 2016/10/19

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    最優秀口頭発表賞受賞

  144. Immunobiotic evolution in livestock healthy growth strategy International-presentation

    Kitazawa, H

    Lorentz Center Workshop 2016/09/19

  145. ワカメ資化性イムノバイオティクスの応用基礎研究

    舛水由季, AKM H. Kober, B. Tzu-An Chao, 飯田ひかる, 大坪和香子, 須田義人, 麻生 久, 齋藤忠夫, 鈴木啓一, J. Villena, 北澤春樹

    2016年度 酪農科学シンポジウム 2016/09/09

  146. 乳利用拡大のための発展的イムノバイオティック評価系構築

    佐藤 菜, AKM, H. Kobe, 小林永和, 多田明日翔, 飯田ひかる, 舛水由季, 大坪和香子, 麻生 久, 齋藤忠夫, J. Villena, 北澤春樹

    2016年度 酪農科学シンポジウム 2016/09/09

  147. 遊離ガラクトースゼロの機能性ヨーグルトの作成

    山田滉介, 大坪和香子, 北澤春樹, 齋藤忠夫

    2016年度 酪農科学シンポジウム 2016/09/09

  148. 褐色脂肪細胞の活性化による経口セロトニンの抗肥満作用

    田口輝明, 日高湧介, 海野 剛, 對木陽淳, 陳 香凝, 北澤春樹, 渡邊康一, 野地智法, 麻生 久

    第66回 東北畜産学会大会 2016/09/06

  149. Healthy growth strategy for livestock based on immunobiotic regulation via pattern recognition receptors

    H. Kitazawa

    Special Seminar in University of Toronto 2016/06/17

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    Dr. Elena M. Comelli(Assistant Professor, Department of Nutritional Sciences and Lawson Family Chair in Microbiome Nutrition Research)の受入で、標記トピックスの紹介と共に、東北大学および大学院農学研究科と食と農免疫国際教育研究センターの紹介を行った。

  150. Innate immunity in long-term adipogenesis of PIP cell line: ligand specific activation of Toll-like receptors modulates triacylglyceride, cytokine and chemokine secretion in adipocytes International-presentation

    AKM H. Kober, A. Tada, M. Suzuki, P. Kanmani, H. Aso, K. Miyazawa, K. Yoda, F. He, W-I. Otsubo, T. Saito, J. Villena, H. Kitazawa

    CSM2016 2016/06/12

  151. ブタ対応型イムノバイオティクスのマイクロアレイ解析による抗炎症免疫特性評価

    小林永和, Leonardo Albarracin, 麻生 久, 大坪和香子, 齋藤忠夫, Julio Villena, 北澤春樹

    日本畜産学会第121回大会 2016/03/27

  152. Long term differentiation model of PIP cells for evaluating anti-adipogenic activities of immunobiotics

    A.K.M, Humayun Kobe, 多田明日翔, 鈴木政彦, Paulraj Kanmani, 麻生 久, 宮澤賢治, 依田一豊, 何 方, 大坪 和香子, 齋藤忠夫, 北澤春樹

    日本畜産学会第121回大会 2016/03/27

  153. Immunoregulatory activity of immunogenics on PIE cells against PolyI:C stimulation

    Paulraj Kanmani, 小林永和, A.K.M, Humayun Kobe, 麻生 久, 大坪 和香子, 江草信太郎, 齋藤忠夫, 北澤春樹

    日本畜産学会第121回大会 2016/03/27

  154. Immunobiotic bacteria peptidoglycan protects infant mice against toll-like receptor 3-mediated lung inflammatory damage and secondary pneumococcal infection International-presentation

    Clua, P, H. Zelaya, A. Tada, G. Marranzino, S. Salva, S. Alvarez, H. Kitazawa, J. Villena

    The First International Joint Meeting between the Latin American Society for Immunodeficiencies (LASID), the Argentinean Society for Immunology (SAI), and the French Society for Immunology (SFI) 2015/11/18

  155. Immunobiotic Lactobacillus strains reduce small intestinal injury induced by intraepithelial lymphocytes after toll-like receptor 3 activation International-presentation

    Zelaya, H, A. Tada, P. Clua, S. Salva, S. Alvarez, H. Kitazawa, J. Villena

    The First International Joint Meeting between the Latin American Society for Immunodeficiencies (LASID), the Argentinean Society for Immunology (SAI), and the French Society for Immunology (SFI) 2015/11/18

  156. Lactobacillus rhamnosus CRL1505 peptidoglycan modulates the inflammation-coagulation response triggered by Poly(I:C). International-presentation

    Zelaya, H, A. Tada, P. Clua, G. Marranzino, S. Salva, S. Alvarez, H. Kitazawa, G. Agüero, J. Villena

    The First International Joint Meeting between the Latin American Society for Immunodeficiencies (LASID), the Argentinean Society for Immunology (SAI), and the French Society for Immunology (SFI) 2015/11/18

  157. ブタ由来細胞におけるペプチドグリカン認識 タンパク質の発現とその調節

    飯田ひかる, 須田 義人, 齋藤 忠夫, 北澤 春樹

    日本食品免疫学会 第11回学術大会 2015/10/15

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    1.5分間の口頭発表も含まれる。

  158. ブタ脂肪前駆細胞によるイムノバイオティック評価に関する応用研究

    多田明日翔, 宮澤賢司, 依田一豊, 何 方, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第11回学術大会 2015/10/15

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    1.5分間の口頭発表も含まれる。

  159. MPS抗病性育種ランドレース豚および一般ランドレース豚における免疫関連分子の比較

    佐久間晶子, 吉野淳良, 氏家 哲, 野地智法, 渡邊康一, 麻生 久, 北澤春樹, 加藤和雄, 須田義人, 中條 満, 國井 洋, 高橋 健, 島津朋之, 鈴木啓一

    日本養豚学会第103回大会 2015/10/08

  160. Bifidobacterium属細菌代謝物の脳内アミロイドβ蓄積抑制効果に関する研究

    舛水 由季, 佐々木 菜摘, 大坪和香子, 齋藤忠夫, 北澤春樹, 須田義人

    2015年度 酪農科学シンポジウム 2015/09/25

  161. イムノバイオティクスのウィルス感染モデルにおける腸管免疫調節機構

    多田明日翔, Hortensia Zelaya, Patricia Clua, 齋藤忠夫, Susana Alvarez, Julio Villena, 北澤春樹

    2015年度 酪農科学シンポジウム 2015/09/25

  162. Bifidobacterium longum SBT2928の産生する菌体外多糖に関する研究

    安西沙織, 赤石和応, 北澤春樹, 上西寛司, 瀬戸泰幸, 齋藤忠夫

    日本畜産学会第120回大会 2015/09/11

  163. 高セシウム(Cs)吸着性乳酸菌の選抜と体内除染用ヨーグルトの開発に関する研究

    松崎郷子, 江上昌弘, 木下英樹, 南條正巳, 北澤春樹, 齋藤忠夫

    日本畜産学会第120回大会 2015/09/11

  164. 腸管M細胞が産生するアルドラーゼAのプリオン蛋白取込みへの関与

    鈴木 京, 長澤裕哉, 陳 香凝, 庄 涛, 田口輝明, 渡邊康一, 大和田修一, 北澤春樹, 麻生 久

    日本畜産学会第120回大会 2015/09/11

  165. ブタ腸管ムチンからの乳酸菌の分離とムーンライティング付着因子の網羅解析

    木下英樹, 大内聡子, 荒川健佑, 渡辺真通, 北澤春樹, 齋藤忠夫

    日本畜産学会第120回大会 2015/09/11

  166. ブタにおけるペプチドグリカン認識タンパク質ファミリーの発現とその調節

    飯田ひかる, 遠野雅徳, 須田義人, 麻生 久, 大坪和香子, 齋藤忠夫, 北澤春樹

    日本畜産学会第120回大会 2015/09/11

  167. Immunobiotics modulate antiviral immunity against rotavirus via Toll-like receptors pathways in porcine intestinal epithelial cells International-presentation

    Kanmani, P, T. Ishizuka, H. Kobayashi, A. Miyazaki, J. Soma, Y. Suda, H. Aso, T. Saito, N. Iwabuchi, J.-z. Xiao, J. Villena, H. Kitazawa

    FEMS2015 2015/06/07

  168. Non-viable immunobiotic Lactobacillus rhamnosus CRL1505 improves respiratory immunity and reduces influenza virus-associated lung injury International-presentation

    Zelaya, H, P. Kanmani, M. G. Vizoso-Pinto, S. Salva, S. Alvarez, H. Kitazawa, J. Villena

    FEMS2015 2015/06/07

  169. 二本鎖RNAウィルス感染モデルにおけるイムノバイオティクスの腸管炎症調節作用

    多田明日翔, Zelaya Hortensia, Clua Patricia, Alvarez Susana, 齋藤忠夫, Villena Julio, 北澤春樹

    日本畜産学会第119回大会 2015/03/27

  170. ワカメの給与が育成豚の免疫能及び腸内細菌叢に与える影響

    陸拾七, 三ツ井葵, 島津朋之, 加藤和雄, 北澤春樹, 阿部敬悦, 國井 洋, 斉藤隼人, 二瓶 健, 阿部 誠, 鈴木啓一

    日本畜産学会第119回大会 2015/03/27

  171. 品種交雑が選抜ランドレース種豚の抗病性関連遺伝子に及ぼす影響

    高橋 光, 菅原静夏, 長澤裕哉, 寺田俊介, 板谷奈波, 佐藤貴俊, 藤田勇気, 北澤春樹, 島津朋之, 鈴木啓一, 野地智法, 渡邊康一, 麻生 久

    日本畜産学会第119回大会 2015/03/27

  172. 新規イムノバイオティック評価指標の網羅的探索

    小林永和, 石塚好将, 麻生 久, 齋藤忠夫, 北澤春樹

    日本畜産学会第119回大会 2015/03/27

  173. ブタ腸管由来樹状細胞におけるイムノバイオティクスの取り込み解析

    月田耕一郎, 飯田ひかる, 大和田修一, 遠野雅徳, 須田義人, 麻生 久, 牧野聖也, 池上秀二, 齋藤忠夫, 北澤春樹

    日本畜産学会第119回大会 2015/03/27

  174. Bifidobacterium longum SBT2928の産生する菌体外多糖の新規化学構造

    安西沙織, 赤石和応, 三崎千恵美, 西村順子, 北澤春樹, 上西寛司, 瀬戸泰幸, 齋藤忠夫

    日本畜産学会第119回大会 2015/03/27

  175. 潰瘍性大腸炎(UC)の寛解を左右するヒト腸内細菌の単離とスルホムチン保護性菌のヨーグルトへの利用

    三崎千恵美, 片山紗良, 安西沙織, 黄 懿儂, 北澤春樹, 堀井 明, 海野倫明, 大沼 忍, 齋藤忠夫

    日本畜産学会第119回大会 2015/03/27

  176. 強力な自己凝集特性を持つLactobacillus brevis KB290 の菌体外多糖と各種生理活性発現能の関連性の解明

    齋藤忠夫, 赤石和応, 安西沙織, 鈴木重徳, 佐々木恵理加, 菅沼大行, 矢嶋信浩, 北澤春樹

    日本畜産学会第119回大会 2015/03/27

  177. 豚マイコプラズマ性肺炎に対する抗病性育種選抜の 有効性の検証

    佐久間晶子, 中條 満, 斎藤隼人, 國井 洋, 高橋 健, 島津朋之, 北澤春樹, 麻生 久, 加藤和雄, 須田義人, 鈴木啓一

    日本養豚学会第101回大会 2014/10/29

  178. ロタウイルスのウシ腸管上皮細胞感染系によるイムノバオティック評価系への応用

    小林永和, 石塚好将, 齋藤忠夫, 岩淵紀之, 清水(肖)金忠, 北澤春樹

    日本食品免疫学会 第10回学術大会 2014/10/16

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    1.5分間の口頭発表も含まれる。

  179. Probiotics:Immunobiotics and Immunogenics International-presentation

    Kitazawa H

    CERELA-CONICET Seminar 2014/09/22

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    アルゼンチン国立乳酸菌研究所(CERELA-CONICET)に招待され講演(90分間)を行った。

  180. ブタ脂肪前駆細胞によるイムノバイオティック評価に関する応用研究

    多田明日翔, 鈴木政彦, Paulraj Kanmani, 渡邉一史, 麻生 久, 宮澤賢司, 依田一豊, 何 方, 細田正孝, 齋藤忠夫, 北澤春樹

    平成26年度 酪農科学シンポジウム 2014/09/12

  181. Corynebacterium glutamicumの乾燥菌体は、離乳仔豚の下痢症予防に有効である

    太田康博, 藤條武司, 海老澤 真, 篠崎純子, 梶浦貴之, 小林永和, 北澤春樹

    第157回日本獣医学会学術集会 2014/09/09

  182. ウシ腸管M細胞における解糖系酵素アルドラーゼAの合成と分泌

    長澤裕哉, 盛田彰太郎, 日高湧介, 鈴木 京, 渡邉一史, 渡邊康一, 大和田修一, 野地智法, 北澤春樹, 今村守一, 横山 隆, 堀内基広, 坂口末廣, 麻生 久

    第157回日本獣医学会学術集会 2014/09/09

  183. Lactobacillus brevis KB290の菌体外多糖構造と自己凝集特性に関する研究

    赤石和応, 鈴木重徳, 菅沼大行, 矢嶋信浩, 北澤春樹, 齋藤忠夫

    日本乳酸菌学会2014年度大会 2014/07/17

  184. Lactobacillus gasseri OLL2716(LG21)の胃内でのピロリ菌排除機構の解明

    鈴木大智, 黄 懿儂, 大川原 崇, 北澤春樹, 大沼 忍, 柴田 近, 堀井 明, 木村勝紀, 齋藤忠夫

    日本乳酸菌学会2014年度大会 2014/07/17

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    優秀発表賞受賞(対象者20名中3名受賞)

  185. Anti-inflammatory Ability of Plant derived Immunobiotic Lactobacillus delbrueckii subsp. delbrueckii TUA4408L and Its Immunogenic Extracellular Polysaccharides via Regulating TLR Signaling in Porcine Intestinal Epitheliocytes International-presentation

    P. Kanmani, S. Wachi, Y. Tomosada, T. Yuri, H. Kobayashi, S. Egusa, T. Shimazu, Y. Suda, H. Aso, M. Sugawara, T. Saito, J. Villena, T. Mishima, H. Kitazawa

    asm2014 2014/05/17

  186. ブタ腸管上皮細胞におけるビフィズス菌の Toll 様受容体を介する抗炎症機構

    友定洋介, Villena Julio, 島津朋之, 麻生 久, 岩淵紀之, 清水(肖) 金忠, 齋藤忠夫, 北澤春樹

    日本畜産学会第118回大会 2014/03/27

  187. マウスへのセロトニン経口投与による糖代謝および脂質代謝への影響

    佐藤勝祥, 寺田俊介, 住吉啓介, 陳 香凝, 北澤春樹, 白川 仁, 渡邊康一, 野地智法, 麻生 久

    日本畜産学会第118回大会 2014/03/27

  188. 抗病性選抜ランドレース豚の免疫特性解析

    菅原静夏, 高橋 光, 長澤裕哉, 寺田俊介, 白須直樹, 住吉敬介, 板谷奈波, 北澤春樹, 島津朋之, 鈴木啓一, 野地智法, 渡邊康一, 麻生 久

    日本畜産学会第118回大会 2014/03/27

  189. マイコプラズマ抗病性選抜豚の病変有無による MPS ワクチン刺激に対する免疫応答の違い

    島津朋之, 陸 拾七, 片山雄貴, 大津良輔, 米野智之, 北澤春樹, 麻生 久, 加藤和雄, 須田義人, 佐久間晶子, 中條 満, 鈴木啓一

    日本畜産学会第118回大会 2014/03/27

  190. 二成分性バクテリオシン「ガセリシン T」の作用機構に関する研究

    川井 泰, 郭 暁艶, 鈴木はるか, 西村順子, 北澤春樹, 浅見幸夫, 増田哲也, 齋藤忠夫

    日本畜産学会第118回大会 2014/03/27

  191. Lactobacillus gasseri OLL2716(LG21)のピロリ菌排除機構の解明

    鈴木大智, 黄 懿儂, 大川原 崇, 北澤春樹, 大沼 忍, 柴田 近, 堀井 明, 木村勝紀, 齋藤忠夫

    日本畜産学会第118回大会 2014/03/27

  192. Lactobacillus brevis KB290 の菌体外多糖構造と自己凝集特性の解明

    齋藤忠夫, 赤石和応, 北澤春樹, 鈴木重徳, 菅沼大行, 矢嶋信浩

    日本畜産学会第118回大会 2014/03/27

  193. ブタ脂肪細胞の炎症免疫応答によるイムノバイオティック評価

    鈴木政彦, 多田明日翔, 渡邉一史, 麻生 久, 宮澤賢司, 依田一豊, 何 方, 齋藤忠夫, 北澤春樹

    日本畜産学会第118回大会 2014/03/27

  194. ブタ末梢血単球由来樹状細胞によるイムノバイオティック評価

    高橋卓也, 月田耕一郎, 須田義人, 遠野雅徳, 麻生 久, 牧野聖也, 池上秀二, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第118回大会 2014/03/27

  195. ウシパイエル板 M 細胞における解糖系酵素アルドラーゼ A を介した異常型プリオン蛋白質取り込み機構

    長澤裕哉, 盛田彰太郎, 日高湧介, 渡邉一史, 渡邊康一, 大和田修一, 北澤春樹, 今村守一, 横山 隆, 堀内基広, 坂口末廣, 麻生 久

    日本畜産学会第118回大会 2014/03/27

  196. Advanced application of bovine intestinal epitheliocytes for evaluating regulatory effect of immunobiotics against enterotoxgenic Escherichia coli-mediated inflammation International-presentation

    Tomosada, Y, N. Takanashi, K. Murata, M. Tohno, T. Shimazu, H. Aso, Y. Suda, S. Ikegami, H. Itoh, T. Saito, H. Kitazawa

    IDF World Dairy Summit 2013 2013/10/28

  197. Immunostimulatory oligodeoxynucleotide from yogurt starter bacteria Streptococcus thermophilus, strongly induces interleukin 33 International-presentation

    Ito, Y, S. Shigemori, H. Otani, H. Kitazawa, T. Shimosato

    IDF World Dairy Summit 2013 2013/10/28

  198. 植物由来乳酸菌が生産する菌体外多糖による腸管炎症免疫調節機構

    友定洋介, 小林永和, 三島 隆, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第9回学術大会 2013/10/17

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    1.5分間の口頭発表も行った。

  199. ロタウイルスのブタ腸管上皮(PIE)細胞感染系の確立に関する基礎的研究

    石塚好将, 小林永和, 友定洋介, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第9回学術大会 2013/10/17

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    1.5分間の口頭発表も行った。

  200. 抗病性育種により造成された系統豚ミヤギノL2と他品種・交雑種との抗病性機能および肥育成績の比較検証

    佐久間晶子, 斉藤隼人, 國井 洋, 中條 満, 高橋 健, 島津朋之, 北澤春樹, 麻生 久, 加藤和雄, 須田義人, 鈴木啓一

    第156回日本獣医学会学術集会 2013/09/20

  201. マウス腸管M細胞における解糖系酵素アルドラーゼAを介した異常型プリオン蛋白質取り込み機構

    長澤裕哉, 盛田彰太郎, 日高湧介, 渡邉一史, 大和田修一, 北澤春樹, 今村守一, 横山 隆, 堀内基広, 坂口末廣, 西田教行, 渡邊康一, 野地智法, 麻生 久

    第156回日本獣医学会学術集会 2013/09/20

  202. ブタ脂肪前駆細胞の食品・飼料免疫学的利用性に関する基礎的研究

    鈴木政彦, 渡邉一史, 齋藤 遼, 麻生 久, 川井 泰, 齋藤忠夫, 北澤春樹

    平成25年度 酪農科学シンポジウム 2013/09/13

  203. ブタ末梢血由来樹状細胞の分化誘導とイムノバイオティック評価系への応用

    高橋卓也, 月田耕一郎, 麻生 久, 須田義人, 川井 泰, 齋藤忠夫, 北澤春樹

    平成25年度 酪農科学シンポジウム 2013/09/13

  204. ブタ腸管由来樹状細胞の乳酸菌に対する自然免疫認識特性

    月田耕一郎, 高橋卓也, 麻生 久, 遠野雅徳, 須田義人, 齋藤忠夫, 池上秀二, 伊藤裕之, 北澤春樹

    平成25年度 酪農科学シンポジウム 2013/09/13

  205. 牛乳中にも存在するN-アセチルグルコサミン摂取によるマウス腸内細菌叢及び腸管バリア能向上によるアンチエイジング活性

    佐藤未来, 黄 懿儂, 西村順子, 川井 泰, 北澤春樹, 三澤義知, 山田 潤, 齋藤忠夫

    平成25年度 酪農科学シンポジウム 2013/09/13

  206. ビフィズス菌の潰瘍性大腸炎(UC)原因菌に対する腸管排除能解析

    大川原崇, 黄 懿儂, 川井 泰, 北澤春樹, 小川 仁, 三浦 康, 柴田 近, 堀井 明, 清水金忠, 岩附慧二, 齋藤忠夫

    平成25年度 酪農科学シンポジウム 2013/09/13

  207. 乳酸菌の水銀結合タンパク質の解析

    大竹文香, 木下英樹, 石田光晴, 北澤春樹, 齋藤忠夫, 木村和彦

    平成25年度 酪農科学シンポジウム 2013/09/13

  208. 乳酸菌を用いた内部被曝低減の可能性と豆乳ヨーグルトの試作

    木下英樹, 佐藤友香, 大竹文香, 北澤春樹, 齋藤忠夫, 菰田俊一, 石田光晴, 木村和彦

    平成25年度 酪農科学シンポジウム 2013/09/13

  209. 環状バクテリオシン「ガセリシンA」の生合成機構に関する研究

    鈴木はるか, 中村圭志, 荒川健佑, 安田成美, 川井 泰, 西村順子, 北澤春樹, 浅見幸夫, 齋藤忠夫

    平成25年度 酪農科学シンポジウム 2013/09/13

  210. The change of plasma C-reactive protein and metabolites concentration, and MPS sick degree score in Landrase selected for resistance to MPS, Large Yorkshire selected for immune performances and the crossbreed

    Suda, Y, A. Sakuma, T. Shimazu, L. Borjigin, H. Yu, Y. Katayama, M. Nakajo, H. Kitazawa, H. Aso, K. Kato, K. Suzuki

    SAFEPORK2013 2013/09/09

  211. イムノバイオティクスのブタ腸管樹状細胞における自然免疫認識特性

    月田耕一郎, 高橋卓也, 麻生 久, 遠野雅徳, 須田義人, 齋藤忠夫, 池上秀二, 伊藤裕之, 北澤春樹

    日本畜産学会第117回大会 2013/09/09

  212. ブタ腸管上皮(PIE)細胞株による抗ロタウイルス感染免疫評価系構築に関する基礎的研究

    石塚好将, 千葉絵里子, 宮崎綾子, 麻生 久, 齋藤忠夫, 恒光 裕, 北澤春樹

    日本畜産学会第117回大会 2013/09/09

  213. Anti-inflammatory effect of bifidobacteria strains via modulation of TLR negative regulators in porcine intestinal epithelial cells International-presentation

    Y. Tomosada, J. Villena, K. Murata, E. Chiba, T. Shimazu, H. Aso, N. Iwabuchi, J.-z. Xiao, T. Saito, H. Kitazawa

    FEMS2013 2013/07/21

  214. The effect of feeding 2% lactic acid added feed to E. coli infected CDCD pigs International-presentation

    T. Tanaka, Y. Imai, T. Sasaki, S. Niinuma, N. Kumagae, H. Kitazawa, S. Sato

    FEMS2013 2013/07/21

  215. Immunobiotic evaluation of functional feed materials in porcine intestinal immune and epithelial cells International-presentation

    N. Kumagae, Y. Tomosada, J. Villena, T. Takahashi, S. Hosoya, H. Fujie, H. Aso, T. Saito, T. Sasaki, M. Yoshida, H. Tanabe, H. Kitazawa

    FEMS2013 2013/07/21

  216. N/C 末端がリンクした環状バクテリオシン「ガセリシンA」の生合成機構に関する研究

    鈴木はるか, 川井 泰, 荒川健佑, 中村圭志, 安田成美, 木ノ内智之, 郭 暁艶, 水谷 陽, 西村順子, 北澤春樹, 浅見幸夫, 齋藤忠夫

    日本乳酸菌学会2013年度大会 2013/07/09

  217. Lactobacillus brevis KB290(ラブレ菌)の菌体外多糖構造と自己凝集特性に関する研究(1)

    赤石和応, 郭 暁艶, 黄 懿儂, 大川原崇, 西村順子, 北澤春樹, 鈴木重徳, 菅沼大行, 矢嶋信浩, 齋藤忠夫

    日本乳酸菌学会2013年度大会 2013/07/09

  218. ナイシンおよびエタノールを感作した乳酸菌の菌体内残存物質メタボローム解析

    川井 泰, 郭 暁艶, 大島 悟, 木ノ内智之, 西村順子, 鈴木はるか, 北澤春樹, 増田哲也, 齋藤忠夫

    日本乳酸菌学会2013年度大会 2013/07/09

  219. 安全・安心な健康生活と健全育成を支える乳酸菌・ビフィズス菌の重要性と将来性

    北澤春樹

    2013年度 日本乳酸菌学会泊まり込みセミナー 2013/05/09

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    特別講演として招待された

  220. ヒト腸疾患の予防につながる大腸ムチン酸性基を介したヒト腸管付着性プロバイオティクスの新規選抜 方法の開発と応用

    黄 懿儂, 大川原崇, 西村順子, 川井 泰, 北澤春樹, 大沼 忍, 柴田 近, 堀井 明, 齋藤忠夫

    日本畜産学会第116回大会 2013/03/28

  221. ブタの生産性を高めるイムノバイオティック乳酸菌の抗病性効果

    須田義人, 下斗米陽子, 細矢翔一, 石田光晴, 麻生 久, 牧野聖也, 池上秀二, 伊藤裕之, 北澤春樹

    日本畜産学会第116回大会 2013/03/28

  222. 一般ランドレースと大ヨークシャー種のMPSワクチンに対する免疫応答の比較

    島津朋之, 陸 拾七, 片山雄貴, 佐藤 匠, 大津良輔, 遠藤雅士, 北澤春樹, 麻生 久, 加藤和雄, 須田義人, 佐久間晶子, 中條 満, 鈴木啓一

    日本畜産学会第116回大会 2013/03/28

  223. MPS 病変選抜種と末梢血免疫能選抜種豚の肺病変及びMPS ワクチン刺激に対する末梢血免疫応答の比較

    陸 拾七, 島津朋之, 片山雄貴, 佐藤 匠, 遠藤雅士, 大津良輔, 佐久間晶子, 中條 満, 北澤春樹, 麻生 久, 加藤和雄, 須田義人, 鈴木啓一

    日本畜産学会第116回大会 2013/03/28

  224. 腸管M 細胞における解糖系酵素アルドラーゼA を介したプリオン蛋白質取り込み機構

    長澤裕哉, 高橋 遊, 本堂哲也, 渡邉一史, 寺田俊介, 染谷俊輔, 渡邊康一, 大和田修一, 北澤春樹, 今村守一, 横山 隆, 毛利資郎, 麻生 久

    日本畜産学会第116回大会 2013/03/28

  225. 二成分性バクテリオシン「ガセリシンT」の連結発現およびC末端アミノ酸残基の欠損が抗菌活性に及ぼす影響

    水谷 陽, 安田成美, 木ノ内智之, 鈴木はるか, 郭 暁艶, 黄 懿儂, 西村順子, 川井 泰, 北澤春樹, 齋藤忠夫

    日本畜産学会第116回大会 2013/03/28

  226. ブタ末梢血由来樹状細胞の分化誘導とイムノバイオティック評価系への利用性

    高橋卓也, 月田耕一郎, 麻生 久, 須田義人, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第116回大会 2013/03/28

  227. ブタ脂肪前駆細胞の食品・飼料免疫学的利用性に関する基礎的研究

    鈴木政彦, 渡邉一史, 齋藤 遼, 麻生 久, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第116回大会 2013/03/28

  228. 乳酸菌由来菌体外多糖の免疫刺激活性とその作用機構

    遠野雅徳, 安澤大輔, 齋藤康雄, 北澤春樹

    日本畜産学会第116回大会 2013/03/28

  229. 抗菌ペプチド「ナイシン」およびエタノールを感作した乳酸菌の菌体内残存物質網羅(メタボローム)解析

    川井 泰, 郭 暁艶, 大島 悟, 木ノ内智之, 水谷 陽, 鈴木はるか, 西村順子, 北澤春樹, 齋藤忠夫

    日本農芸化学会2013年度大会 2013/03/24

  230. N/C末端がリンクした環状バクテリオシン「ガセリシンA」の生合成機構に関する研究

    鈴木はるか, 川井 泰, 荒川健佑, 中村圭志, 安田成美, 木ノ内智之, 郭 暁艶, 水谷 陽, 西村順子, 北澤春樹, 齋藤忠夫

    日本農芸化学会2013年度大会 2013/03/24

  231. Lactobacillus gasseri LA39が生産する二成分性バクテリオシン「ガセリシンT」の自己耐性タンパク質に関する検討

    木ノ内智之, 安田成美, 鈴木はるか, 水谷 陽, 郭 暁艶, 川井 泰, 西村順子, 藤田康弘, 北澤春樹, 出内桂二, 齋藤忠夫

    日本農芸化学会2013年度大会 2013/03/24

  232. 二成分性バクテリオシン「ガセリシンT」の作用機構に関する研究

    郭 暁艶, 川井 泰, 安田成美, 木ノ内智之, 水谷 陽, 鈴木はるか, 西村順子, 北澤春樹, 齋藤忠夫

    日本農芸化学会2013年度大会 2013/03/24

  233. 抗病性LW 交雑豚のMPS ワクチンに対する免疫応答の比較

    片山雄貴, 島津朋之, 陸 拾七, 佐藤 匠, 遠藤雅士, 大津良輔, 北澤春樹, 麻生 久, 加藤和雄, 須田義人, 佐久間晶子, 中條 満, 鈴木啓一

    日本養豚学会第98回大会 2013/03/22

  234. Role of aldolase A in transcytosis of intestinal M cells International-presentation

    Nagasawa Y, Takahashi Y, Hondo T, Watanabe H, Terada S, Someya S, Watanabe K, Ohwada S, Kitazawa H, Imamura M, Yokoyama T, Sakaguchi S, Nishida N, Mohri S, Aso H

    2012 ASCB Annual Meeting 2012/12/15

  235. Role of pattern recognition receptors in the therapeutic effect of immunobiotics and immunogenics. International-presentation

    Kitazawa, H, J. Villena

    LVII Reunión Científica Anual de la Sociedad Argentina de Investigación Clínica, LX Reunión Científica Anual de la Sociedad Argentina de Inmunología. 2012/11/14

  236. Lactobacillus jensenii TL2937 modula la expresion de reguladores negativos de TLR4 en celulas presentadoras de antigeno de intestino porcino a traves de TLR2. International-presentation

    Villena, J, H. Fujie, H. Aso, S. Ikegami, H. Itoh, S. Alvarez, H. Kitazawa

    LVII Reunión Científica Anual de la Sociedad Argentina de Investigación Clínica, LX Reunión Científica Anual de la Sociedad Argentina de Inmunología. 2012/11/14

  237. Actividad inmunomoduladora diferencial de dos cepas de lactobacillus rhamnosus: efecto en la inmunidad antiviral de intestino. International-presentation

    Vizoso Pinto, M, J. Villena, J, G. Marranzino, V. Rodriguez, Y. Tomosada, S. Alvarez, H. Kitazawa

    LVII Reunión Científica Anual de la Sociedad Argentina de Investigación Clínica, LX Reunión Científica Anual de la Sociedad Argentina de Inmunología. 2012/11/14

  238. プロバイオティクスからイムノバイオティクス−分子免疫評価基盤から機構解明を目指して−

    北澤春樹

    日本食品免疫学会 第8回学術大会 学会賞受賞記念講演 2012/10/17

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    学会賞受賞記念講演

  239. マイコプラズマ抗病性選抜ランドレース種と他の豚のGoodwin’s lung score比較

    佐久間晶子, 中條 満, 斎藤隼人, 國井 洋, 高橋 健, 島津朋之, 北澤春樹, 麻生 久, 加藤和雄, 須田義人, 鈴木啓一

    第97回日本養豚学会 2012/10/10

  240. 腸管M細胞における解糖系酵素アルドラーゼAを介した抗原取り込み機構

    長澤裕哉, 高橋 遊, 本堂哲也, 渡邉一史, 寺田俊介, 染谷俊輔, 渡邊康一, 大和田修一, 北澤春樹, 今村守一, 横山 隆, 毛利資郎, 麻生 久

    第154回 日本獣医学会学術集会 2012/09/14

  241. 高抗病性ランドレース豚の免疫担当臓器におけるサイトカイン発現の特性解析

    菅原静夏, 染谷俊輔, 渡邉一史, 長澤裕哉, 寺田俊介, 住吉敬介, 白須直樹, 櫻田隆大, 中野辰也, 齋藤 遼, 北澤春樹, 島津朋之, 鈴木啓一, 大和田修一, 渡邊康一, 麻生 久

    第62回 東北畜産学会大会 2012/08/30

  242. Changes in peripheral blood leukocytes in swine selected line for resistance to MPS International-presentation

    Shimazu, T, S. Q., Liu, Y. Katayama, M. H. Li, T. Sato, H. Kitazawa, H. Aso, K. Katoh, Y. Suda, A. Sakuma, M. Nakajo, K. Suzuki

    63rd Anual Meeting EAAP 2012 2012/08/27

  243. Selection of reduced MPS pulmonary lesions influences the production of soluble factors in blood International-presentation

    Katayama, Y, M. H., Li, T. Sato, S. Q, Liu, T. Shimazu, H. Kitazawa, H. Aso, K. Katoh, Y. Suda, A. Sakuma, M. Nakajo, K. Suzuki

    63rd Anual Meeting EAAP 2012 2012/08/27

  244. 乳酸菌菌体外多糖のパターン認識受容体を介する免疫調節機能特性

    室伏 陽, 和知 俊, 細矢翔一, 遠野雅徳, 島津朋之, 下里剛士, 川井 泰, 齋藤忠夫, 橋口健司, 吉田睦子, 北澤春樹

    平成24年度 酪農科学シンポジウム 2012/08/18

  245. ビフィズス菌の潰瘍性大腸炎(UC)原因菌に対する腸管排除能解析

    大川原 崇, 黄 懿儂, 小川 仁, 三浦 康, 柴田 近, 川井 泰, 北澤春樹, 堀井 明, 齋藤忠夫

    平成24年度 酪農科学シンポジウム 2012/08/18

  246. ブタ腸管由来乳酸桿菌の分離同定とイムノバイオティック機能評価

    友定洋介, 細矢翔一, 植田 渉, 千葉絵里子, 和知 俊, 遠野雅徳, 須田義人, 麻生 久, 西村順子, 川井 泰, 齋藤忠夫, 北澤春樹

    平成24年度 酪農科学シンポジウム 2012/08/18

  247. N/C末端がリンクした環状バクテリオシン「ガセリシンA」の生合成機構に関する研究

    鈴木はるか, 中村圭志, 荒川健佑, 川井 泰, 西村順子, 北澤春樹, 齋藤忠夫

    平成24年度 酪農科学シンポジウム 2012/08/18

  248. 乳酸菌の金属吸着能の検討

    大竹文香, 木下英樹, 石田光晴, 川井 泰, 北澤春樹, 齋藤忠夫, 木村和彦

    平成24年度 酪農科学シンポジウム 2012/08/18

  249. ヒト腸内細菌の大腸ムチン結合部位決定のための酸性基に着目した新しいBiacore評価系の構築

    黄 懿儂, 渡辺真通, 大川原 崇, 川井 泰, 北澤春樹, 大沼 忍, 柴田 近, 堀井 明, 木村勝紀, 竹友直生, 齋藤忠夫

    平成24年度 酪農科学シンポジウム 2012/08/18

  250. 二成分性バクテリオシン「ガセリシンT」のGxxxGモチーフが抗菌活性に及ぼす影響

    安田成美, 川井 泰, 伊藤喜之, 荒川健佑, 中村圭志, 鈴木はるか, 郭 暁艶, 水谷 陽, 西村順子, 北澤春樹, 齋藤忠夫

    平成24年度 酪農科学シンポジウム 2012/08/18

  251. ビフィズス菌の潰瘍性大腸炎(UC)原因菌に対する腸管排除能解析

    大川原 崇, 渡辺真通, 黄 懿儂, 江口 慧, 鶴見卓也, 小川 仁, 三浦 康, 柴田 近, 川井 泰, 北澤春樹, 堀井 明, 齋藤忠夫

    平成24年度 酪農科学シンポジウム 2012/08/18

  252. Prion protein binding proteins of bovine intestine M cell International-presentation

    Nagasawa Y, Takahashi Y, Hondo T, Watanabe H, Terada S, Saito C, Someya S, Watanabe K, Ohwada S, Kitazawa H, Imamura M, Yokoyama T, Sakaguchi S, Nishida N, Mohri S, Aso H

    Asian Pacific Prion Symposium 2012 2012/07/29

  253. 飲料危害菌に対するナイシンA、ナイシンZ、ガセリシンAおよびガセリシンTの抗菌スペクトルの検討

    水谷 陽, 木ノ内智之, 渡辺雄太, 大山里英, 鈴木はるか, 川井 泰, 西村順子, 藤田康弘, 北澤春樹, 出内桂二, 齋藤忠夫

    日本乳酸菌学会2012年度大会 2012/07/12

  254. N/C末端がリンクした環状バクテリオシン「ガセリシンA」の生合成機構に関する研究

    鈴木はるか, 中村圭志, 荒川健佑, 安田成美, 川井 泰, 伊藤喜之, 西村順子, 北澤春樹, 齋藤忠夫

    日本乳酸菌学会2012年度大会 2012/07/12

  255. 二価金属イオンが二成分性バクテリオシン「ガセリシンT」の生産に及ぼす影響

    郭 暁艶, 荒川健佑, 上西寛司, 中島 肇, 西村順子, 川井 泰, 北澤春樹, 齋藤忠夫

    日本乳酸菌学会2012年度大会 2012/07/12

  256. Lactobacillus gasseri LA39が生産する環状バクテリオシン「ガセリシンA」の自己耐性ペプチドに関する検討

    木ノ内智之, 安田成美, 鈴木はるか, 水谷 陽, 川井 泰, 西村順子, 藤田康弘, 北澤春樹, 出内桂二, 齋藤忠夫

    日本乳酸菌学会2012年度大会 2012/07/12

  257. Orally administered Lactobacillus rhamnosus modulates the respiratory immune response triggered by the viral pathogen-associated molecular pattern poly(I:C) International-presentation

    Villena, J, E. Chiba, G. Marranzino, S. Salva, Y. Tomosada, H. Kitazawa, S. Alvarez

    4th International Conference on Biotechnology for the Wellness Industry 2012/06/20

  258. New evaluation system using Biacore to select probiotics with high binding activity to acidic residues of human colonic mucin International-presentation

    Huang, I.N, T. Okawara, M. Watanabe, Y. Kawai, H. Kitazawa, S. Ohnuma, C. Shibata, A. Horii, T. Saito

    The 7th International Symposium on Lactic Acid Bacteria and Health, The 3rd Asian Symposium on Lactic Acid Bacteria 2012/05/29

  259. プロバイオティクスからイムノバイオティクス -分子免疫評価基盤と機構解明-

    北澤

    北里大学乳酸菌プロジェクト公開シンポジウム 2012/05/25

  260. ウシ腸管上皮M細胞におけるプリオン蛋白質親和性蛋白質の同定

    高橋遊, 長澤裕哉, 染谷俊輔, 齋藤千夏, 寺田俊介, 今村守一, 横山 隆, 渡邉 一史, 北澤春樹, 大和田修一, 渡邊康一, 毛利資郎, 麻生 久

    日本畜産学会第115回大会 2012/03/28

  261. ブタ対応型イムノバイオティクスの腸管モデル共培養系による抗ウイルス性免疫評価

    千葉絵里子, 細矢翔一, Julio Villena, 藤江 瞳, 島津朋之, 麻生 久, 川井 泰, 齋藤忠夫, 池上秀二, 伊藤裕之, 北澤春樹

    日本畜産学会第115回大会 2012/03/28

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    優秀発表賞受賞

  262. MPS 選抜系統豚のMPS ワクチンに対する獲得免疫応答の比較

    片山雄貴, 島津朋之, 陸 拾七, 李 美花, 佐藤 匠, 北澤春樹, 麻生 久, 加藤和雄, 須田義人, 鈴木啓一

    日本畜産学会第115回大会 2012/03/28

  263. MPS ワクチン刺激に対する抗病性選抜豚の末梢血中免疫細胞割合の比較

    陸 拾七, 島津朋之, 片山雄貴, 李 美花, 佐藤 匠, 北澤春樹, 麻生 久, 加藤和雄, 須田義人, 鈴木啓一

    日本畜産学会第115回大会 2012/03/28

  264. 乳酸菌の金属イオン吸着/ 吸収能の検討

    大竹文香, 木下英樹, 石田光晴, 川井 泰, 北澤春樹, 齋藤忠夫, 木村和彦

    日本畜産学会第115回大会 2012/03/28

  265. 潰瘍性大腸炎(UC)の炎症緩和効果を示す血液型乳酸菌に関する基盤的研究(その1)

    齋藤忠夫, 佐藤優理, 坂本光央, 大熊盛也, 小川 仁, 三浦 康, 柴田 近, 川井 泰, 北澤春樹, 堀井 明

    日本畜産学会第115回大会 2012/03/28

  266. Lactobacillus mucosae 由来アドへシン様タンパク質(Lam29)の新規ヒト大腸粘液由来結合因子 の探索および同定

    渡辺真通, 木下英樹, 川井 泰, 北澤春樹, 三浦 康, 柴田 近, 堀井 明, 木村勝紀, 竹友直生, 齋藤忠夫

    日本畜産学会第115回大会 2012/03/28

  267. プロバイオティック乳酸菌のヒト大腸ムチンにおけるシアル酸・硫酸基結合評価系のBiacore による 新構築

    黄 懿儂, 春田美由樹, 渡辺真通, 江口 慧, 鶴見卓也, 大川原崇, 川井 泰, 北澤 春樹, 大沼 忍, 柴田 近, 堀井 明, 木村勝紀, 竹友直生, 齋藤忠夫

    日本畜産学会第115回大会 2012/03/28

  268. ブタ腸管由来乳酸桿菌の分離同定と腸管免疫調節機能性

    友定洋介, 細矢翔一, 植田 渉, 室伏 陽, 千葉絵里子, 和知 俊, 須田義人, 麻生 久, 西村順子, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第115回大会 2012/03/28

  269. ウシ対応型イムノバイオティクスの腸管炎症調節機構

    高梨直也, 村田 梢, 千葉絵里子, 細矢翔一, 島津朋之, 遠野雅徳, 麻生 久, 須 田義人, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第115回大会 2012/03/28

  270. 乳酸菌菌体外多糖の異なるパターン認識受容体を介する免疫調節機能特性

    室伏陽, 和知 俊, 細矢翔一, 遠野雅徳, 島津朋之, 下里剛士, 川井 泰, 齋藤 忠夫, 橋口健司, 吉田睦子, 北澤春樹

    日本畜産学会第115回大会 2012/03/28

  271. 乳酸菌由来オリゴヌクレオチドによる新規分泌型IL-33様タンパク質の誘導

    下里剛士, 伊藤雄亮, 遠野雅徳, 大谷 元, 北澤春樹

    日本畜産学会第115回大会 2012/03/28

  272. マウス腸管M 細胞における解糖系酵素アルドラーゼAの特異的発現

    長澤裕哉, 高橋 遊, 本堂哲也, 渡邉一史, 寺田俊介, 齋藤千夏, 染谷俊輔, 渡邊康一, 大和田修一, 今村守一, 横山 隆, 毛利資郎, 北澤春樹, 麻生 久

    日本畜産学会第115回大会 2012/03/28

  273. 乳房炎発症初期で乳腺組織および乳汁中に確認されたリンパ球遊走因子シクロフィリンA

    堀越頼子, 染谷俊輔, 齋藤千夏, 佐藤秀俊, 北澤春樹, 渡邊康一, 大和田修一, 松原朋子, 菊 佳男, 林 智人, 麻生 久

    日本畜産学会第115回大会 2012/03/28

  274. 二成分性バクテリオシン「ガセリシンT」の発現およびGxxxGモチーフが抗菌活性に及ぼす影響

    安田 成美, 川井 泰, 伊藤 喜之, 荒川 健佑, 中村 圭志, 西村 順子, 北澤 春樹, 齋藤 忠夫

    日本農芸化学会2012年度大会 2012/03/24

  275. N・C末端がリンクした環状バクテリオシン「ガセリシンA」の生合成機構に関する研究

    中村 圭志, 荒川 健佑, 鈴木 はるか, 安田 成美, 川井 泰, 伊藤 喜之, 西村 順子, 北澤 春樹, 齋藤 忠夫

    日本農芸化学会2012年度大会 2012/03/24

  276. トランス型脂肪酸高利用性プロバイオティクスの探索とその特性解析

    有友 亮太, 鈴木 将憲, 川井 泰, 北澤 春樹, 齋藤 忠夫

    日本農芸化学会2012年度大会 2012/03/24

  277. 潰瘍性大腸炎の炎症緩和効果を有するプロバイオティクスに関する基盤的研究(その1)

    佐藤優理, 坂本光央, 小川 仁, 三浦 康, 柴田 近, 川井 泰, 北澤春樹, 大熊盛也, 堀井 明, 齋藤忠夫

    日本農芸化学会2012年度大会 2012/03/24

  278. 抗菌剤に頼らない「イムノバイオティック飼料添加物」の開発戦略

    北澤春樹

    シンポジウム「家畜衛生等技術のこれから~民間の力を生かして~」 2011/12/19

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    (財)生物科学安全研究所主催

  279. ウシ腸管上皮細胞によるイムノバイオティクスの抗ウイルス性免疫評価

    千葉絵里子, 細矢翔一, 高梨直也, 島津朋之, 麻生 久, 遠野雅徳, 須田義人, 川井 泰, 齋藤忠夫, 宮澤賢司, 何 方, 北澤春樹

    日本食品免疫学会 第7回学術大会 2011/10/18

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    ワークショップに選抜され、10分間の口頭発表を行った。 優秀ポスター賞を受賞した。

  280. ウシ腸管上皮(BIE)細胞による抗炎症性イムノバイオティクスの選抜・評価

    村田 梢, 高梨直也, 千葉絵里子, 遠野雅徳, 岩淵紀介, 清水(肖)金忠, 川井 泰, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第7回学術大会 2011/10/18

  281. プロバイオティック乳酸菌による重金属のバイオソープション

    木下 英樹, 相馬 由衣, 石田 光晴, 川井 泰, 北澤 春樹, 齋藤 忠夫, 木村 和彦

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  282. ウシ腸管上皮細胞による抗ウイルス性イムノバイオティクスの 評価系構築

    千葉絵里子, 細矢翔一, 高梨直也, 下里剛士, 遠野雅徳, 麻生 久, 川井 泰, 齋藤忠夫, 北澤春樹

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  283. ウシ対応型の抗炎症性イムノバイオティックスの選抜・評価

    村田 梢, 原 理沙, 高梨直也, 千葉絵里子, 島津朋之, 遠野雅徳, 麻生 久, 岩淵紀介, 清水(肖)金忠, 川井 泰, 齋藤忠夫, 北澤春樹

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  284. 改良チーズホエー培地を用いた、二成分性バクテリオシン「ガセリシンT」の精製とその特性解析

    安田成美, 川井 泰, 伊藤喜之, 荒川健佑, 中村圭志, 中條貴弘, 西村順子, 牧野由美子, 重信秀治, 北澤春樹, 齋藤忠夫

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  285. Lactobacillus brevis KB290のヒト腸管付着性の因子探索と機構解明

    江口慧, 渡辺真通, 本田洋之, 鈴木重徳, 矢嶋信浩, 川井泰, 北澤春樹, 齋藤忠夫

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  286. 潰瘍性大腸炎(UC)関連細菌の網羅的解析と血液型乳酸菌による排除

    佐藤優理, 坂本光央, 大熊盛也, 小川 仁, 三浦 康, 柴田 近, 川井 泰, 北澤春樹, 堀井 明, 齋藤忠夫

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  287. Lactobacillus mucosae ME-340由来ABCトランスポータータンパク質(Lam29)に結合する宿主受容体様分子の探索

    渡辺真通, 川井 泰, 北澤春樹, 三浦 康, 小川 仁, 柴田 近, 堀井 明, 木村勝紀, 竹友直生, 齋藤忠夫

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  288. トランス脂肪酸高利用性プロバイオティック乳酸菌の特性解析とその高度利用

    有友亮太, 川井泰, 鈴木将憲, 西村順子, 北澤春樹, 齋藤忠夫

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  289. L.gasseri OLL2716(LG21)の胃ムチン結合因子とピロリ菌排除機構の解明

    鶴見卓也, 新田将光, 渡辺真通, 木村勝紀, 竹友直生, 小川 仁, 三浦 康, 柴田 近, 川井 泰, 北澤春樹, 堀井 明, 齋藤忠夫

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  290. 3.Streptococcus thermophilus由来オリゴヌクレオチドにより誘導されるIL-33 活性化機構の解析

    下里剛士, 伊藤雄亮, 遠野雅徳, 大谷 元, 北澤春樹

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  291. 生体防御に関わるペプチドグリカン認識タンパク質ファミリーの腸管における発現解析

    遠野雅徳, 植田 渉, 島津朋之, 下里剛士, 麻生 久, 北澤春樹

    平成23年度 酪農科学シンポジウム 日本酪農科学会 創立60周年記念大会 2011/09/22

  292. New prevention strategy for inflammatory bowel disease using probiotic lactic acid bacteria and/or Bifidobacterium with specific adhesion to human intestine International-presentation

    Saito, T, R. Yukishita, M. Watanabe, H. Kitazawa, Y. Kawai, A. Horii, F. Ikezawa, A. Yamamura, H. Ogawa, K. Miura, C. Shibata, I. Sasaki

    10th Symposium on Lactic Acid Bacteria 2011/08/28

  293. Mass preparation of gassericin a concentrate from cheese whey culture supernatant of lactobacillus gasseri la39 for application to food preservation International-presentation

    Kawai, Y, K. Nakamura, K. Arakawa, N. Yasuta, T. Chujo, H. Iioka, M. Tanioka, J. Nishimura, H. Kitazawa, K. Tsurumi, T. Saito

    10th Symposium on Lactic Acid Bacteria 2011/08/28

  294. Biosorption of heavy metals by lactic acid bacteria International-presentation

    Kinoshita, H, Y. Sohma, M. Ishida, Y. Kawai, H. Kitazawa, T.Saito, K. Kimura

    10th Symposium on Lactic Acid Bacteria 2011/08/28

  295. ウシ腸管上皮細胞による抗ウイルス性イムノバイオティクスの評価系構築

    千葉絵里子, 細矢翔一, 高梨直也, 下里剛士, 遠野雅徳, 麻生久, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第114回大会 2011/08/26

  296. ウシ対応型の抗炎症性イムノバイオティックスの選抜・評価

    村田梢, 原理 沙, 高梨直也, 千葉絵里子, 島津朋之, 遠野雅徳, 麻生 久, 岩淵紀介, 清水, 肖) 金忠, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第114回大会 2011/08/26

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    ポスター発表からワークショップの口頭発表に選抜された。

  297. 腸管免疫系におけるイムノバイオティック乳酸菌によるNLRP3 受容体の発現増強

    遠野雅徳, 下里剛士, 麻生 久, 北澤春樹

    日本畜産学会第114回大会 2011/08/26

  298. Streptococcus thermophilus 由来オリゴヌクレオチド刺激によるIL-33 の断片化解析

    下里剛士, 伊藤雄亮, 遠野雅徳, 大谷 元, 北澤春樹

    日本畜産学会第114回大会 2011/08/26

  299. 食品規格培地を用いた、乳酸菌由来の二成分性バクテリオシン「ガセリシンT」の生産、精製とその特性 解析

    安田成美, 川井 泰, 伊藤喜之, 荒川健祐, 中村圭志, 中條貴弘, 西村順子, 牧 野由美子, 重信秀治, 北澤春樹, 齋藤忠夫

    日本畜産学会第114回大会 2011/08/26

  300. Lactobacillus mucosae由来 ABCトランスポータータンパク質(Lam29)のヒト大腸粘液中の新規受容体様分子の同定

    渡辺真通, 江口 慧, 鶴見卓也, 川井 泰, 北澤春樹, 齋藤忠夫, 山村明寛, 生澤史江, 三浦 康, 小川 仁, 佐々木 巌, 堀井 明, 木村勝紀, 竹友直生

    日本乳酸菌学会2011年度大会 2011/07/11

  301. Immunobiotics and Immunogenics as an Evolution of Probiotics International-presentation

    Kitazawa, H

    Nestle Research Center Seminar 2011/07/01

  302. Toll-like receptor-2 activating Bifidobacteria strains regulate inflammatory response in porcine intestinal epithelial cells. International-presentation

    H. Fujie, J. Villena, M. Tohno, K. Morie, T. Shimazu, H. Aso, Y. Suda, T. Shimosato, N. Iwabuchi, J.Z. Xiao, T. Yaeshima, K. Iwatsuki, M. Numasaki, Y. Kawai, T. Saito, H. Kitazawa

    FEMS2011 2011/06/26

  303. Toll-like receptor 4 recognizes extracellular polysaccharide from Lactococcus lactis subsp. cremoris. International-presentation

    M. Tohno, T. Shimosato, H. Aso, H. Kitazawa

    FEMS2011 2011/06/26

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    Travel Award 受賞

  304. Induction of tolerogenic porcine antigen presenting cells by immunobiotic Lactobacillus jensenii: Impact on pathogen-induced inflammatory damage. International-presentation

    J. Villena, H. Fujie, R. Suzuki, S. Hosoya, Y. Suda, E. Chiba, H. Aso, M. Tohno, S. Ikegami, H. Itoh, T. Saito, S. Alvarez, H. Kitazawa

    FEMS2011 2011/06/26

  305. Recovery of B cells in malnourished mice by nasally administered Lactobacillus rhamnosus. International-presentation

    J. Villena, N. Barbieri, M. Herrera, S. Salva, H. Kitazawa, H. Fujie, S. Alvarez

    FEMS2011 2011/06/26

  306. MPS病変低選抜系ランドレース種(ミヤギノL2 )と末梢血免疫能高選抜系大ヨークシャー種およびその交雑豚の免疫応答について

    五嶋 恵, 佐藤 匠, 細矢翔一, 北澤春樹, 柴田千尋, 高萩陽一, 鈴木啓一

    第94回日本養豚学会 2011/03/15

  307. 安全な持続的家畜生産のためのイムノバイオティック革命

    北澤春樹

    第5回日本家畜臨床感染症研究会総会・学術集会 2010/12/10

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    奨励研究としの招待講演。講演内容を含む総説を依頼され、日本家畜臨床感染症研究会誌に公表した。

  308. 腸管免疫能を強化するイムノバイオティック飼料添加物の開発

    北澤春樹

    シンポジウム”飼料添加物をめぐる最新動向” 2010/12/08

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    (財)畜産生物科学安全研究所主催、(社)日本科学飼料協会共催

  309. Development of Immunobiotic Evaluation System for Functional Foods and Feeds International-presentation

    Kitazawa, H, M. Tohno, T. Shimosato, Y. Suda, H. Aso

    The 14th Animal Science Congress of the Asian-Australasian Association of Animal Production Science 2010/08/23

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    Keynote speakerとして招待された

  310. Immunobiotic Lactobacillus rhamnosus Isolated from Goat Milk, Enhances Systemic and Respiratory Innate Immune Response in Malnourished Mice. International-presentation

    Villena,J, M. Herrera, S. Salva, N. Barbieri, H. Kitazawa, S. Alvarez

    The 14th Animal Science Congress of the Asian-Australasian Association of Animal Production Science 2010/08/23

  311. Immunobiotics as antimicrobial alternatives increase productivity in swine. International-presentation

    Suda, Y, Y. Takahashi, M. Tohno, J. Villena, S. Hosoya, H. Fujie, T. Shimosato, M. Ishida, H. Aso, Y. Kawai, T. Saito, S. Makino, S. Ikegami, H. Kitazawa

    The 14th Animal Science Congress of the Asian-Australasian Association of Animal Production Science 2010/08/23

  312. Discovery of a new adhesin-like protein from Lactobacillus Mucosae ME-340 with binding activity to human blood group A and B antigens. International-presentation

    Watanabe, M, H. Kinoshita, M. Nitta, R. Yukishita, M. Haruta, K. Eguchi, Y. Kawai, K. Kimura, N. Taketomo, K. Miura, A. Horii, H. Kitazawa, T. Saito

    The 14th Animal Science Congress of the Asian-Australasian Association of Animal Production Science 2010/08/23

  313. Search for new Bifidobacterium adhesins with specific binding activity to human colonic mucin. International-presentation

    Yukishita, R, M. Watanabe, M. Nitta, H. Kinoshita, Y. Kawai, K. Miura, A. Horii, J. Z. Xiao, T. Yaeshima, K. Iwatsuki, H. Kitazawa, T. Saito

    The 14th Animal Science Congress of the Asian-Australasian Association of Animal Production Science 2010/08/23

  314. GAPDH酵素活性を指標とした腸管付着性乳酸菌の新規スクリーニング法の検討

    木下英樹, 井本瞬, 須田義人, 石田光晴, 三浦康, 堀井明, 渡辺真通, 新田将光, 雪下玲奈, 川井泰, 北澤春樹, 齋藤忠夫

    日本乳酸菌学会2010年度大会 2010/07/26

  315. Lactobacillus plantarum No.14が産生する菌体外多糖の解析

    橋口健司, 長田裕子, 上村佑也, 吉田睦子, 室伏 陽, 北澤春樹

    日本乳酸菌学会2010年度大会 2010/07/26

  316. Lactobacillus plantarum No.14が生産する菌体外多糖の腸管免疫調節作用

    室伏 陽, 細矢翔一, 藤江 瞳, 高梨直也, 麻生 久, 遠野雅徳, 橋口健司, 吉田睦子, 川井 泰, 齋藤忠夫, 北澤春樹

    日本乳酸菌学会2010年度大会 2010/07/26

  317. ヒトABO式血液型抗原を介したプロバイオティック乳酸菌の腸管付着性機構に関する研究

    渡辺真通, 新田将光, 雪下玲奈, 春田美由樹, 江口慧, 川井泰, 北澤春樹, 齋藤忠夫, 木下英樹, 三浦康, 堀井明, 木村勝紀, 竹友直生

    日本乳酸菌学会2010年度大会 2010/07/26

  318. ビフィズス菌の新規ヒト腸管付着性因子(アドヘシン)の探索と付着機構の解明

    雪下玲奈, 渡辺真通, 新田将光, 木下英樹, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 清水(肖)金忠, 八重島智子, 岩附慧二, 齋藤忠夫

    日本乳酸菌学会2010年度大会 2010/07/26

  319. Lactobacillus gasseri LA158が生産するバクテリオシン「ガセリシンT」の二成分性に関する検討

    中條貴弘, 荒川健佑, 川井 泰, 中村圭志, 安田成美, 有友亮太, 西村順子, 北澤春樹, 齋藤忠夫, 藤喜之

    日本乳酸菌学会2010年度大会 2010/07/26

  320. 改良チーズホエイ培地を用いたバクテリオシン(ガセリシンA)の限外ろ過調製とカスタードクリームの腐敗抑制効果

    中村圭志, 荒川健佑, 川井 泰, 西村順子, 北澤春樹, 齋藤忠夫, 飯岡宏之, 谷岡政司, 鶴見幸市

    日本乳酸菌学会2010年度大会 2010/07/26

  321. Stimulation of macrophages by immunobiotics: influence beyond the intestinal tract

    VILLENA, J, S. SALVAA, G. MARRANZINOA, H. KITAZAWA, S. ALVAREZ

    日本乳酸菌学会2010年度大会 2010/07/26

  322. Novel immunostimulatory activities of CpG oligodeoxynucleotides from Streptococcus thermophilus. International-presentation

    Shimosato, T, M. Fujimoto, M. Tohno, T. Sato, H. Otani, H. Kitazawa

    ADSA-PSA-AMPA-CSAS-ASAS Joint Meeting 2010/07/11

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    Oral presentation

  323. Evaluation of anti-inflammatory immunobiotics in porcine intestinal epithelial cells. International-presentation

    Kitazawa, H, T. Shimazu, M. Tohno, J. Villena, S. Hosoya, H. Fujie, Y. Suda, T. Shimosato, H. Aso, S. Makino, S. Ikegami, Y. Kawai, T. Saito

    International Scientific Conference on Probiotics and Prebiotics-IPC2010 2010/06/14

  324. Effect of preventive administration of lactic acid bacteria on the number and activity of myeloid cells after cyclophosphamide treatment. International-presentation

    Villena, J, S. Salva, M. Herrera, N. Barbieri, H. Kitazawa, S. Alvarez

    International Scientific Conference on Probiotics and Prebiotics-IPC2010 2010/06/14

  325. Effect of immunobiotics on the immune performance and productivity of pigs International-presentation

    Suda, Y, Y. Takahashi, M. Tohno, J. Villena, S. Hosoya, H. Fujie, T. Shimosato, J. Kobashi, M. Ishida, H. Aso, Y. Kawai, T. Saito, S. Makino, S. Ikegami, H. Kitazawa

    International Scientific Conference on Probiotics and Prebiotics-IPC2010 2010/06/14

  326. 乳酸菌由来CpG DNAによるToll様受容体9を介するIL-33の発現増強

    下里剛士, 藤本 恵, 遠野雅徳, 大谷 元, 北澤春樹

    日本食品免疫学会 第6回学術大会 2010/06/01

  327. 腸管上皮細胞による抗ウイルス性イムノバイオティクスの選抜・評価

    細矢翔一, 島津朋之, 藤江 瞳, 高梨直也, 遠野雅徳, 麻生 久, 牧野聖也, 池上秀二, 川井 泰, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第6回学術大会 2010/06/01

  328. 腸管上皮(BIE)細胞株による抗炎症性イムノバイオティック評価

    高梨直也, 島津朋之, 遠野雅徳, 藤江 瞳, 細矢翔一, 麻生 久, 牧野聖也, 池上秀二, 川井 泰, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第6回学術大会 2010/06/01

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    ワークショップ口頭発表採択(48演題中10題の中に選抜された)

  329. GAPDH活性を指標としたヒト腸管高付着性乳酸菌の新規スクリーニング法の確立(2)

    井本 瞬, 木下英樹, 須田義人, 石田光晴, 渡辺真通, 新田将光, 雪下玲奈, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 齋藤忠夫

    日本畜産学会第112回大会 2010/03/28

  330. Streptococcus thermophilus由来DNAによる抗炎症免疫応答の誘導

    下里剛士, 藤本 恵, 遠野雅徳, 大谷 元, 北澤春樹

    日本畜産学会第112回大会 2010/03/28

  331. ウシ対応型の抗炎症性イムノバイオティック評価

    高梨直也, 島津朋之, 遠野雅徳, 麻生 久, 牧野聖也, 池上秀二, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第112回大会 2010/03/28

  332. PIE細胞による抗ウイルス性イムノバイオティクスの評価系構築

    細矢翔一, 島津朋之, 藤江 瞳, 高梨直也, 遠野雅徳, 麻生 久, 川井泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第112回大会 2010/03/28

  333. Lactobacillus gasseri OLL2716(LG21)によるピロリ菌のヒト胃ムチン付着阻害機構の解明

    新田将光, 渡辺真通, 木下英樹, 雪下玲奈, 春田美由樹, 江口 慧, 西村順子, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 木村勝紀, 竹友直生, 齋藤忠夫

    日本畜産学会第112回大会 2010/03/28

  334. ヒトABO式血液型糖鎖抗原を介したプロバイオティック乳酸菌の腸管付着性機構に関する研究

    渡辺真通, 木下英樹, 新田将光, 雪下玲奈, 春田美由樹, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 木村勝紀, 竹友直生, 齋藤忠夫

    日本畜産学会第112回大会 2010/03/28

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    優秀発表賞受賞

  335. 腸管細胞共培養系によるイムノバイオティック評価系構築

    藤江 瞳, 島津朋之, 遠野雅徳, 麻生 久, 岩淵紀介, 清水(肖)金忠, 八重島智子, 岩附慧二, 川井 泰, 齋藤忠夫, 沼崎宗夫, 北澤春樹

    日本畜産学会第112回大会 2010/03/28

  336. GAPDH活性を指標としたヒト腸管高付着性乳酸菌の新規スクリーニング法の確立(1)

    木下英樹, 井本 瞬, 須田義人, 石田光晴, 渡辺真通, 新田将光, 雪下玲奈, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 齋藤忠夫

    日本畜産学会第112回大会 2010/03/28

  337. ヒトABO式血液型抗原糖鎖結合性の新規ビフィズス菌の発見とその付着特性の解明

    齋藤忠夫, 雪下玲奈, 渡辺真通, 新田将光, 木下英樹, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 清水(肖)金忠, 八重島智子, 岩附慧二

    日本畜産学会第112回大会 2010/03/28

  338. 改良チーズホエー培地を用いたバクテリオシン(ガセリシンA)の調製とカスタードクリームの腐敗抑制効果

    中村圭志, 川井 泰, 荒川健祐, 西村順子, 北澤春樹, 飯岡宏之, 谷岡政司, 鶴見幸市, 齋藤忠夫

    日本農芸化学会2010年度大会 2010/03/27

  339. ヒト腸管由来L. gasseriの二成分性バクテリオシン「ガセリシンT」の特性解析

    中條貴弘, 荒川健祐, 川井 泰, 伊藤喜之, 中村圭志, 西村順子, 北澤春樹, 齋藤忠夫

    日本農芸化学会2010年度大会 2010/03/27

  340. イムノバイオティクスとその評価系構築

    北澤春樹

    日本農芸化学会2010年度大会 2010/03/27

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    森永乳業主催のランチョンセミナーにおける招待講演

  341. イムノジェニクスとしてのオリゴヌクレオチド構造と免疫機能性

    北澤春樹, 下里剛士

    日本食品免疫学会 第3回シンポジウム「次世代シンポジウム」−健康を支える免疫機能と食品による制御ー 2010/01/18

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    食品栄養学、免疫学、およびその関連分野でご活躍中の若手研究者による次世代シンポジウム。食品免疫学の新たな飛躍のきっかけを狙った情報発信。

  342. Toll様受容体を介する免疫パラメーターを用いた抗炎症性Bifidobacteriumの 免疫特性解析

    藤江 瞳, 森江恭子, 遠野雅徳, 島津朋之, 高梨直也, 細矢翔一, 麻生 久, 岩淵紀介, 清水(肖)金忠, 八重島智子, 岩附慧二, 齋藤忠夫, 北澤春樹

    日本畜産学会第111回大会 2009/09/28

  343. ウシ腸管上皮(BIE)細胞株によるイムノバイオティック評価系構築

    高梨直也, 島津朋之, 遠野雅徳, 藤江 瞳, 細矢翔一, 麻生 久, 齋藤忠夫, 北澤春樹

    日本畜産学会第111回大会 2009/09/28

  344. ブタ腸管上皮(PIE)細胞株によるイムノバイオティック飼料素材の抗炎症性評価

    細矢翔一, 島津朋之, 藤江 瞳, 高梨直也, 遠野雅徳, 麻生 久, 津田和宏, 熊谷直祐, 齋藤忠夫, 北澤春樹

    日本畜産学会第111回大会 2009/09/28

  345. Streptococcus thermophilus由来DNA刺激による サイトカイン遺伝子の発現特性

    下里剛士, 舘尾万里子, 遠野雅徳, 大谷 元, 北澤春樹

    日本畜産学会第111回大会 2009/09/28

  346. 酵素活性を利用した高腸管付着性乳酸菌の新規スクリーニング法の確立

    木下英樹, 井本 瞬, 石田光晴, 渡辺真通, 新田将光, 雪下玲奈, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 齋藤忠夫

    日本畜産学会第111回大会 2009/09/28

  347. ピロリ菌の胃内生育を抑制するLactobacillus gasseri OLL2716(LG21)のヒト胃ムチン結合性機構の解析

    新田将光, 渡辺真通, 木下英樹, 雪下玲奈, 西村順子, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 伊藤喜之, 木村勝紀, 竹友直生, 齋藤忠夫

    日本畜産学会第111回大会 2009/09/28

  348. N/C-両末端が結合した環状抗菌ペプチドの環化に関する研究

    荒川健佑, 川井 泰, 伊藤喜之, 中村圭志, 中條貴弘, 西村順子, 北澤春樹, 齋藤忠夫

    日本畜産学会第111回大会 2009/09/28

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    優秀発表賞受賞

  349. NOD受容体を介するペプチドグリカン断片の免疫刺激微細構造

    遠野雅徳, 島津朋之, 下里剛士, 麻生 久, 齋藤忠夫, 北澤春樹

    平成21年度日本酪農科学シンポジウム 2009/08/28

  350. Streptococcus thermophilus由来CpG配列によるIL-33の発現増強

    下里剛士, 舘尾万里子, 遠野雅徳, 大谷 元, 北澤春樹

    平成21年度日本酪農科学シンポジウム 2009/08/28

  351. βラクトグロブリン遺伝子をコードしたDNAワクチンの構築

    藤本 恵, 大谷 元, 北澤春樹, 下里剛士

    平成21年度日本酪農科学シンポジウム 2009/08/28

  352. プロバイオティック乳酸菌の腸管付着因子、グリセルアルデヒド-3-リン酸脱水素酵素(GAPDH)の糖鎖認識性に関する研究

    木下英樹, 渡辺真通, 新田将光, 雪下玲奈, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 齋藤忠夫

    平成21年度日本酪農科学シンポジウム 2009/08/28

  353. ヒト血液型抗原認識性プロバイオティック乳酸菌の新規付着性因子の発見とその付着メカニズムの解明

    渡辺真通, 木下英樹, 新田将光, 雪下玲奈, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 木村勝紀, 竹友直生, 齋藤忠夫

    平成21年度日本酪農科学シンポジウム 2009/08/28

  354. 環状バクテリオシン・ガセリシンAの生合成遺伝子領域の決定

    中村圭志, 荒川健祐, 川井 泰, 伊藤喜之, 中條貴弘, 西村順子, 北澤春樹, 齋藤忠夫

    平成21年度日本酪農科学シンポジウム 2009/08/28

  355. CpG oligodeoxynucleoti de from Streptococcus thermophilus regulates anti -infl ammatory responses. International-presentation

    Shimosato, T, M. Tohno, T. Sato, H. Kitazawa

    ADSA-CSAS-ASAS Joint Meeting 2009/07/12

  356. ヒト由来乳酸桿菌のバクテリオシン生産性と耐性に脂肪酸(オクタデセン酸,C18:1)が及ぼす 影響

    荒川健佑, 川井 泰, 伊藤喜之, 中村圭志, 中條貴弘, 西村順子, 北澤春樹, 齋藤忠夫

    日本乳酸菌学会2009年度大会 2009/07/06

  357. Regulation of inflammatory response by immunobiotics in swine intestinal epithelial cells via MKP-1 International-presentation

    Shimazu, T, M. Tohno, S. Hosoya, H. Fujie, T. Shimosato, H. Aso, Y. Suda, Y. Kawai, T. Saito, H. Kitazawa

    The 9th World Congress on Inflammation 2009/07/06

  358. CpG oligodeoxynucleotide from Streptococcus thermophilus lacZ strongly induces the expression of interleukin-33 in murine immune cells. International-presentation

    Shimosato, T, M. Tohno, T. Sato, M. Tateo, H. Otani, H. Kitazawa

    The 9th World Congress on Inflammation 2009/07/06

  359. Principal effect of dietary antimicrobials on the infection of pathogenic microorganism in weaning piglets International-presentation

    Suda, Y, Y. Takahashi, N. Ojima, J. Kobashi, H. Aso, H. Kitazawa

    The 9th World Congress on Inflammation 2009/07/06

  360. N/C-両末端が結合した環状抗菌ペプチド・ガセリシンAの活性発現遺伝子領域の決定

    荒川健佑, 川井 泰, 伊藤喜之, 中村圭志, 中條貴弘, 西村順子, 北澤春樹, 齋藤忠夫

    第6回 東北大学バイオサイエンスシンポジウムおよび第14回学際ライフサイエンスシンポジウム 2009/06/16

  361. Immunobiotics and Immunogenics as an evolution of probiotics International-presentation

    JSPS Alumni Club Finland, Opening Ceremony and Summer Seminar 2009/06/05

  362. 乳酸菌由来免疫刺激性DNAによるIL-33の発現増強

    下里剛士, 遠野雅徳, 大谷 元, 北澤春樹

    日本食品免疫学会 第5回学術大会 2009/05/26

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    設立5周年記念学術大会

  363. 腸管免疫系におけるプロバイオティクスによるNODの発現増強と可溶性ペプチドグリカンフラグメント微細構造の免疫活性相関

    遠野雅徳, 島津朋之, 下里剛士, 麻生 久, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第5回学術大会 2009/05/26

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    設立5周年記念学術大会

  364. Lactobacillus gasseriが生産する抗菌ペプチドを用いたカスタードクリームの新規保存法の開発

    荒川健佑, 川井 泰, 飯岡宏之, 谷岡政司, 北澤春樹, 鶴見幸市, 齋藤 忠夫

    日本畜産学会第110回大会 2009/03/27

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    優秀発表賞ノミネート

  365. Streptococcus thermophilus lacZからの強免疫刺激性DNAモチーフの発見

    下里剛士, 遠野雅徳, 西村順子, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第110回大会 2009/03/27

  366. Lactobacillus plantarumのToll様受容体2を介する免疫刺激特性

    森江恭子, 遠野雅徳, 島津朋之, 植田 渉, 藤江 瞳, 高梨直也, 細矢翔一, 川井 泰, 吉田睦子, 齋藤忠夫, 北澤春樹

    日本畜産学会第110回大会 2009/03/27

  367. ブタPGLYRPファミリーの遺伝子強制発現細胞の構築とその機能解析

    植田 渉, 遠野雅徳, 島津朋之, 森江恭子, 藤江 瞳, 細矢翔一, 高梨直也, 麻生 久, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第110回大会 2009/03/27

  368. ブタNOD1および2を介する可溶性ペプチドグリカンフラグメントの免疫刺激活性とそのリガンド構造特性

    遠野雅徳, 島津朋之, 下里剛士, 麻生 久, 齋藤忠夫, 北澤春樹

    日本畜産学会第110回大会 2009/03/27

  369. イムノバイオティクスのブタ腸管上皮細胞における抗炎症作用

    島津朋之, 遠野雅徳, 下里剛士, 麻生 久, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第110回大会 2009/03/27

  370. プロバイオティック乳酸菌を用いたCandida albicansの付着阻害

    木下英樹, 渡辺真道, 新田将光, 雪下玲奈, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 齋藤忠夫

    日本畜産学会第110回大会 2009/03/27

  371. 2成分性のバクテリオシン(ガセリシンT)の生合成遺伝子とタンパク質化学的特性

    中條貴弘, 荒川健佑, 川井 泰, 伊藤喜之, 中村圭志, 西村順子, 北澤春樹, 齋藤忠夫

    日本畜産学会第110回大会 2009/03/27

  372. バクテリオシン(ガセリシンA)に対する乳酸菌の自己耐性因子とその発現解析

    川井 泰, 荒川健佑, 伊藤喜之, 西村順子, 北澤春樹, 齋藤忠夫

    日本畜産学会第110回大会 2009/03/27

  373. ヒト腸管由来乳酸桿菌における食餌性脂肪酸の利用特性に関する研究

    鈴木将憲, 西村順子, 川井 泰, 北澤春樹, 齋藤忠夫

    日本畜産学会第110回大会 2009/03/27

  374. ブタにおける免疫能および産肉性に対する飼料中抗菌剤の影響

    高橋 遊, 加藤隼大, 小島成未, 須田義人, 小林 仁, 麻生 久, 北澤春樹

    日本畜産学会第110回大会 2009/03/27

  375. ヒト血液型抗原認識性プロバイオティック乳酸菌の新規付着性因子の同定

    渡辺真通, 木下英樹, 新田将光, 雪下玲奈, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 木村勝紀, 竹友直生, 齋藤 忠夫

    日本農芸化学会2009年度大会 2009/03/27

  376. Development of evaluation system for immunobiotics International-presentation

    Kitazawa, H, H. Aso

    Multilateral Workshop, "Challenge for the reduction of antimicrobial use in animal production." 2008/11/11

  377. ヒト由来乳酸桿菌のバクテリオシン生産性と耐性に脂肪酸(オクタデセン酸,C18:1)が及ぼす 影響

    伊藤円香, 川井 泰, 遠藤泰志, 荒川健佑, 鈴木将憲, 北澤春樹, 齋藤忠夫

    日本乳酸菌学会2008年度大会 2008/07/14

  378. Immuno-stimulatory AT oligodeoxynucleotide from Lactobacillus gasseri requires a specific self-stabilized structure. International-presentation

    Shimosato, T, M. Tohno, T. Sato, Y. Kawai, T. Saito, H. Kitazawa

    ADSA-ASAS Joint Meeting 2008/07/07

  379. An immuno-evaluation system for anti-inflammatory probiotics using originally established porcine epitheliocyte(PIE) cells. International-presentation

    Shimazu, T, M. Tohno, M. Moue, H. Aso, T. Saito, H. Kitazawa

    ADSA-ASAS Joint Meeting 2008/07/07

  380. 乳酸菌表層グリセルアルデヒド-3-リン酸脱水素酵素(GAPDH)はヒトABO式血液型抗原構造を認識する!-乳酸菌のヒト定着性機構の一部を解明-

    木下英樹, 渡辺真通, 若原望美, 松尾啓樹, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 齋藤忠夫

    第5回 東北大学バイオサイエンスシンポジウムおよび第12回学際ライフサイエンスシンポジウム 2008/05/19

  381. プロバイオティック乳酸菌Lactobacillus gasseriの生育性およびバクテリオシン生産性を向上させる新規乳培地の開発

    荒川健佑, 川井 泰, 北澤春樹, 齋藤忠夫

    第5回 東北大学バイオサイエンスシンポジウムおよび第12回学際ライフサイエンスシンポジウム 2008/05/19

  382. ブタ腸管上皮細胞株を用いた抗炎症性プロバイオティクスの分子免疫評価系の構築

    島津朋之, 遠野雅徳, 馬上真之, 藤江 瞳, 川井 泰, 麻生 久, 齋藤忠夫, 北澤春樹

    第5回 東北大学バイオサイエンスシンポジウムおよび第12回学際ライフサイエンスシンポジウム 2008/05/19

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    優秀研究賞受賞(197演題中5題)

  383. 新規ブタ腸管上皮細胞株を用いた抗炎症性プロバイオティクスの分子免疫評価系構築

    島津朋之, 遠野雅徳, 馬上真之, 藤江 瞳, 川井 泰, 麻生 久, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第4回学術大会 2008/05/13

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    主指導学生の講演,ワークショップ口頭発表に選抜された

  384. プロバイオティック乳酸菌由来ATオリゴヌクレオチドの2次構造特性とTLR9結合領域の解明

    下里剛士, 遠野雅徳, 川井 泰, 齋藤忠夫, 北澤春樹

    日本食品免疫学会 第4回学術大会 2008/05/13

  385. ブタ腸管上皮細胞によるプロバイオティクスの新規ヒトモデル腸管抗炎症評価系の構築

    島津朋之, 遠野雅徳, 馬上真之, 藤江 瞳, 川井 泰, 麻生 久, 齋藤忠夫, 北澤春樹

    日本畜産学会第109回大会 2008/03/27

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    優秀発表賞ノミネート

  386. Toll様受容体9における免疫活性ATオリゴヌクレオチド結合領域の解析

    下里剛士, 遠野雅徳, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第109回大会 2008/03/27

  387. イムノバイオティクス分子免疫活性評価系の腸管免疫活性評価における有効性

    遠野雅徳, 島津朋之, 森江恭子, 川井 泰, 麻生 久, 池上秀二, 齋藤忠夫, 北澤春樹

    日本畜産学会第109回大会 2008/03/27

  388. ヒトB型抗原認識性プロバイオティック乳酸菌のヒト腸管付着性機構の検討

    渡辺真通, 木下英樹, 若原望美, 松尾啓樹, 川崎保美, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 内田英明, 竹友直生, 齋藤忠夫

    日本畜産学会第109回大会 2008/03/27

  389. ヒト腸管付着因子:グリセルアルデヒド-3-リン酸脱水素酵素)GAPDH)の血液型抗原認識機構の解析

    木下英樹, 若原望美, 渡辺真通, 松尾啓樹, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 齋藤忠夫

    日本畜産学会第109回大会 2008/03/27

  390. ブタ腸管高付着性プロバイオティクスの探索と抗生物質低減飼料への利用(その3)

    齋藤忠夫, 川崎保美, 木下英樹, 若原望美, 渡辺真通, 川井 泰, 北澤春樹, 上野啓介, 小林一彦

    日本畜産学会第109回大会 2008/03/27

  391. 市販笹かまぼこから分離した各種細菌の同定

    石川 潤一, 橋本 建哉, 川井 泰, 北澤 春樹, 齋藤 忠夫

    日本農芸化学会2008年度大会 2008/03/26

  392. 乳酸桿菌のバクテリオシン生産性と耐性はオクタデセン酸により変化する

    伊藤円香, 川井 泰, 遠藤泰志, 荒川健佑, 北澤春樹, 齋藤忠夫

    日本農芸化学会2008年度大会 2008/03/26

  393. Lactococcus lactis ssp. cremoris GCL1176株が産生する菌体外多糖のOVA感作マウスにおける免疫調節作用

    安澤 大輔, 遠野 雅徳, 島津 朋之, 齋藤康雄, 齋藤忠夫, 北澤春樹

    日本農芸化学会2008年度大会 2008/03/26

  394. ガセリシンTの生産性に及ぼす二価金属イオンの影響

    荒川 健佑, 川井 泰, 北澤 春樹, 齋藤 忠夫

    日本農芸化学会2008年度大会 2008/03/26

  395. イムノバイオティクスが有する免疫スペクトルの比較解析

    森江恭子, 遠野雅徳, 島津朋之, 植田 渉, 藤江 瞳, 川井 泰, 吉田睦子, 出雲耕二, 齋藤忠夫, 北澤春樹

    日本畜産学会第108回大会 2007/09/26

  396. ブタ腸管におけるNOD1および2の発現とイムノバイオティクスによる発現増強

    遠野雅徳, 植田 渉, 島津朋之, 森江恭子, 麻生 久, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第108回大会 2007/09/26

  397. ブタPGLYRP3および4のクローニングと腸管における発現増強

    植田 渉, 遠野雅徳, 島津朋之, 森江恭子, 麻生 久, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第108回大会 2007/09/26

  398. βカゼインの酵素消化によるモノサイト/マクロファージ走化性ペプチドの生成

    北澤春樹, 米澤久美子, 遠野雅徳, 下里剛士, 川井 泰, 齋藤忠夫, Ji Ming Wang

    日本畜産学会第108回大会 2007/09/26

  399. 腸管付着因子グリセルアルデヒド3-リン酸脱水素酵素(GAPDH)の糖鎖認識機構の解明

    木下英樹, 松尾啓樹, 川崎保美, 若原望美, 渡辺真通, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 齋藤忠夫

    日本畜産学会第108回大会 2007/09/26

  400. Immunoregulatory Factors from Probiotics International-presentation

    Kitazawa, H, M. Tohno, T. Saito

    13th International Congress of Mucosal Immunology 2007/07/09

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    ICMI/JSMI Joint 本人の講演

  401. Preferential expression of lymphotoxin-β by immunobiotics in GALTs of neonatal swine International-presentation

    Shimazu, T, M. Tohno, S. Katoh, T. Shimosato, H. Aso, Y. Kawai, T. Saito, H. Kitazawa

    13th International Congress of Mucosal Immunology 2007/07/09

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    Workshop selected 主指導学生の発表

  402. Extracellular phosphopolysaccharides from Lactococcus lactis ssp. cremoris is a novel ligand for porcine RP105/MD-1 strongly expressed in gut-associated lymphoid tissues. International-presentation

    Tohno, M, T. Shimazu, W. Ueda, D. Anzawa, H. Aso, J. Nishimura, Y. Kawai, Y. Saito, T. Saito, H. Kitazawa

    13th International Congress of Mucosal Immunology 2007/07/09

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    Workshop selected 主指導学生の発表

  403. An assay system for probiotic lactic acid bacteria recognizing human blood type A-antigen that competitively excludes harmful intestinal bacteria. International-presentation

    Saito, T, N. Wakahara, H. Uchida, H. Kinoshita, Y. Kawai, H. Kitazawa, K. Miura, A. Horii, K. Kimura, N. Taketomo

    ADSA-PSA-AMPA-ASAS Joint Meeting 2007/07/08

  404. Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) expressed on the cell surface of Lactobacillus plantarum LA 318 mediates adhesion to human colonic mucin. International-presentation

    Kinoshita, H, H. Uchida, T. Kawasaki, N. Wakahara, H. Matuo, Y. Kawai, H. Kitazawa, S. Ohmura, K. Miura, K. Shiiba, A. Horii, T. Saito

    ADSA-PSA-AMPA-ASAS Joint Meeting 2007/07/08

  405. ヒト由来乳酸桿菌のバクテリオシン生産性と耐性に脂肪酸

    伊藤円香, 川井 泰, 遠藤泰志, 荒川健佑, 北澤春樹, 齋藤忠夫

    日本乳酸菌学会2007年度大会 2007/07/05

  406. ヒト腸管単離プロバイオティック乳酸菌の腸管付着性機構の解明とその応用

    木下英樹, 内田英明, 川崎保美, 若原望美, 川井 泰, 北澤春樹, 三浦 康, 椎葉健一, 堀井 明, 齋藤忠夫

    日本畜産学会第107回大会 2007/03/27

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    優秀発表賞

  407. ブタ腸管付着性プロバイオティクスの探索と抗生物質低減性飼料への利用

    齋藤忠夫, 川崎保美, 内田英明, 木下秀樹, 川井 泰, 北澤春樹, 上野啓介, 山口重三

    日本畜産学会第107回大会 2007/03/27

  408. ブタ腸管におけるイムノバイオティクスのTLR2を介する免疫機能発現

    遠野雅徳, 島津朋之, 川井 泰, 齋藤忠夫, 麻生 久, 北澤春樹

    日本畜産学会第107回大会 2007/03/27

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    主指導学生の発表

  409. ブタlymphotoxin-β(LT-β)のクローニングと腸管における発現増強

    島津朋之, 遠野雅徳, 加藤真一郎, 下里剛士, 麻生 久, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第107回大会 2007/03/27

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    主指導学生の発表

  410. ブタ初乳中における可溶型Pettern recognition receptors (PRRs)の探索とその機能解析

    木村 晴, 遠野雅徳, 島津朋之, 川井 泰, 齋藤忠夫, 北澤春樹

    日本畜産学会第107回大会 2007/03/27

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    主指導学生の発表

  411. 乳酸桿菌のバクテリオシン生産性と耐性にオクタデセン酸が及ぼす影響

    伊藤円香, 川井 泰, 遠藤泰志, 日塔 彬, 荒川健佑, 北澤春樹, 齋藤忠夫

    日本農芸化学会2007年度大会 2007/03/24

  412. ヒトA抗原を認識する腸管系有害菌のBIACOREによる探索と同定

    若原望美, 内田英明, 木下英樹, 川井 泰, 北澤春樹, 三浦 康, 堀井 明, 齋藤忠夫

    日本農芸化学会2007年度大会 2007/03/24

  413. TLRの腸管における機能発現を基礎としたイムノバイオティック評価系の構築

    遠野雅徳, 北澤春樹

    日本食品免疫学会 第2回学術大会 2006/10/23

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    主指導学生の講演

  414. プロバイオティクスの細胞内レセプターNodを介する分子免疫活性評価系の構築

    四阿祐子, 遠野雅徳, 下里剛士, 加藤真一郎, 川井 泰, 齋藤忠夫, 北澤春樹

    第56回東北畜産学会大会 2006/08/31

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    優秀発表賞 主指導学生の発表

  415. Development of a novel immunoassay system for immunobiotics that madulate intestinal immunity through Toll-like receptor 2. International-presentation

    Tohno, M, T. Shimosato, Y. Kawai, T. Saito, H. Kitazawa

    ADSA-ASAS Joint Meeting 2006/07/09

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    Graduate student paper competition (finalist) 主指導学生の発表

  416. Immunobiotic lactic acid bacteria induce immune responses in immature gut-associated lymphoid tissues via Toll-like receptors 2 and 9. International-presentation

    Kitazawa, H, M. Tohno, T. Shimosato, H. Aso, Y. Kawai, T. Saito

    ADSA-ASAS Joint Meeting 2006/07/09

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    本人の発表

  417. Development of a new evaluation system for the selection of probiotic lactic acid bacteria (LAB) with specific adhesion to human blood type A-antigen of intestinal mucosa. International-presentation

    Uchida, H, H. Kinoshita, Y. Kawai, H. Kitazawa, K. Miura, K. Shiiba, A. Horii, K. Kimura, N. Taketomo, M. Oda, T. Yajima, T. Saito

    ADSA-ASAS Joint Meeting 2006/07/09

  418. プロバイオティクスを認識するブタTLR2強制発現細胞による新規分子免疫評価系の構築

    遠野 雅徳, 下里 剛士, 川井 泰, 齋藤 忠夫, 池上 秀二, 北澤 春樹

    日本畜産学会第106回大会 2006/03/29

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    優秀発表賞 主指導学生の発表

  419. ヒト腸管単離乳酸菌Lactobacillus plantarum LA 318の腸管付着性機構の解明

    木下 英樹, 内田 英明, 川井 泰, 北澤 春樹, 三浦 康, 椎葉 健一, 堀井 明, 齋藤 忠夫

    日本畜産学会第106回大会 2006/03/29

  420. ヒト由来Lb. brevis OLL2772株におけるA抗原結合性因子(SlpA)の同定とヘテロ発現解析

    内田 英明, 木下 英樹, 川井 泰, 北澤 春樹, 三浦 康, 椎葉 健一, 堀井 明, 木村 勝紀, 竹友 直生, 小田 宗宏, 矢島 高二, 齋藤 忠夫

    日本畜産学会第106回大会 2006/03/29

  421. ブタ腸管上皮細胞(PIE)におけるToll様受容体(TLR)ファミリーの機能発現

    馬上 真之, 遠野 雅徳, 下里 剛士, 麻生 久, 川井 泰, 齋藤 忠夫, 北澤 春樹

    日本畜産学会第106回大会 2006/03/29

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    主指導学生の発表

  422. リン酸化デキストランの免疫調節作用特性

    永沢 千穂, 西村 順子, 黒崎 大輔, 下里 剛士, 遠野 雅徳, 川井 泰, 北澤 春樹, 齋藤 忠夫

    日本畜産学会第106回大会 2006/03/29

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    主指導学生の研究内容

  423. イムノバイオティクスからの新規免疫調節因子の発見とその分子免疫評価系の構築

    北澤春樹

    日本畜産学会第106回大会 2006/03/29

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    学会賞受賞講演

  424. 環状バクテリオシン:ガセリシンAにおける関連遺伝子とそのホモ発現解析

    川井 泰, KUSNADI, Joni, 遠藤 幹子, 内田 英明, 荒川 健佑, 伊藤 喜之, 北澤 春樹, 齋藤 忠夫

    日本農芸化学会2006年度大会 2006/03/26

  425. プロバイオティック乳酸菌Lactobacillus gasseri ATCC33323におけるラクトース資化系酵素群の発現解析

    本田 洋之, 長岡 誠二, 伊藤 喜之, 川井 泰, 下里 剛士, 北澤 春樹, 齋藤 忠夫

    日本農芸化学会2006年度大会 2006/03/26

  426. パターン認識受容体を介したイムノバイオティクスによる腸管免疫調節機構

    北澤春樹

    日本獣医学会 2006/03/19

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    本人の講演

  427. ブタ腸管関連リンパ組織におけるToll-like receptor(TLR)2および9の発現とその機能解析

    遠野雅徳, 下里剛士, 川井 泰, 渡邊康一, 麻生 久, 山口高弘, 齋藤忠夫, 北澤春樹

    日本獣医学会 2006/03/19

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    ベストプレゼンテーション賞 主指導学生の発表

  428. Toll様受容体の新規リガンドの発見とその腸管免疫調節作用

    北澤春樹

    第9回東北大学学際ライフサイエンスシンポジウム 2006/03/10

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    本人の講演

  429. Immune responses of Immunobiotics and Immunogenics via Toll-like receptors and their advanced application to food immunology International-presentation

    Kitazawa, H

    2ND International Biomicrocosmos Workshop 2006/02/02

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    本人の講演

  430. イムノバイオティクスからの新規免疫刺激性DNAの発見と分子免疫評価システムの構築

    北澤春樹

    酵母細胞研究会 第171回例会 2005/11/25

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    本人の講演

  431. Swine intestinal immunity via Toll-like receptors and its advanced application to food immunology International-presentation

    Kitazawa, H, T. Shimosato, M. Tohno, T. Saito

    Joint meeting of 2nd IS-AS and 3rd IS-IFS -International Symposium on Recent Advances in Animal Science 2005/11/16

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    本人の講演

  432. 未利用資源:植物性多糖フルクタンのリン酸化と免疫賦活化能の誘導と利用

    黒崎大輔, 永沢千穂, 北澤春樹, 小林恭一, 小西雅子, 川井泰, 齋藤忠夫

    日本畜産学会第105回大会 2005/09/09

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    優秀発表賞ノミネート 主指導学生の発表

  433. 市販乳素材からの血圧降下性ペプチドの単離とその食品への利用

    小菅弘美, 高橋涼子, 木村晴, 川井泰, 北澤春樹, 齋藤忠夫

    日本畜産学会第105回大会 2005/09/09

  434. ラクトースの化学的リン酸化によるミネラルキャリア能の誘導とその利用

    菊池紗奈恵, 永沢千穂, 内田英明, 川井 泰, 北澤春樹, 藤本 浩, 伊藤裕之, 齋藤忠夫

    第55回東北畜産学会大会 2005/09/06

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    優秀発表賞

  435. Novel oligodeoxynucleotide in the genomic DNA of Lactobacillus rhamnosus GG elicits strong immunostimulation

    Iliyan, I.D, H. Kitazawa, T. Shimosato, S. Katoh, H. Morita, F. He, M. Hosoda, Y. Kawai, T. Saito

    日本農芸化学会2005年度大会 2005/03/28

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    トピックスに採択 主指導学生の発表

  436. ヒト腸管組織からのlactobacilliの単離・同定とその付着機構の解明

    木下英樹, 内田英明, 川井泰, 北澤春樹, 三浦康, 椎葉健一, 堀井明, 齋藤忠夫

    日本農芸化学会2005年度大会 2005/03/28

  437. 環状バクテリオシン(ガセリシンA)とその関連遺伝子のヘテロ発現解析

    川井泰, R. Kemperman, J. Kok, 北澤春樹, 齋藤忠夫

    日本農芸化学会2005年度大会 2005/03/28

  438. ヒトABO式血液型抗原結合性のプロバイオティック乳酸菌の発見と腸管付着性因子の解析

    内田英明, 木下英樹, 川井泰, 北澤春樹, 三浦康, 椎葉健一, 堀井明, 木村勝紀, 竹友直生, 小田宗広, 齋藤忠夫

    日本畜産学会第104回大会 2005/03/27

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    優秀発表賞受賞

  439. 免疫活性ATオリゴヌクレオチドのToll様受容体9を介するTh-1系免疫応答の誘導

    下里剛士, 北澤春樹, 加藤真一郎, 遠野雅徳, 永沢千穂, 木村俊朗, 川井泰, 齋藤忠夫

    日本畜産学会第104回大会 2005/03/27

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    主指導学生の発表

  440. 新規免疫活性ATオリゴヌクレオチドのLactobacillus gasseri OLL2716ゲノムDNAからの探索

    木村俊朗, 北澤春樹, 下里剛士, 伊藤喜之, 加藤真一郎, 遠野雅徳, 永沢千穂, 川井泰, 佐々木隆, 齋藤忠夫

    日本畜産学会第104回大会 2005/03/27

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    主指導学生の発表

  441. ヒトモデルとしてのブタ腸管関連リンパ組織におけるToll-like receptor (TLR) 2の発現解析

    遠野雅徳, 北澤春樹, 下里剛士, 加藤真一郎, 木村俊朗, 川井泰, 渡邊康一, 麻生久, 山口高弘, 齋藤忠夫

    日本畜産学会第104回大会 2005/03/27

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    主指導学生の発表

  442. ヒトA型赤血球表面抗原の調製とBIACOREシステムへの応用

    竹岡憲孝, 内田英明, 木下英樹, 川井泰, 北澤春樹, 木村勝紀, 竹友直生, 小田宗宏, 齋藤忠夫

    日本畜産学会第104回大会 2005/03/27

  443. Immunostimulatory activities of a novel AT oligonucleotide from "Immunobioticc" Lactobacillus gasseri on swine peyer's patch cells. International-presentation

    Kitazawa, H, T. Shimosato, S. Katoh, M. Tohno, Y. Kawai, T. Saito

    ADSA-ASAS-PSA Joint Meeting 2004/07/25

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    本人の発表

  444. AT oligonucleotide from "Immunobioticc" Lactobacillus gasseri augments immune response via Toll-like receptor 9 signaling. International-presentation

    Shimosato, T, H. Kitazawa, M. Tohno, S. Katoh, Y. Kawai, T. Saito

    ADSA-ASAS-PSA Joint Meeting 2004/07/25

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    主指導学生の発表

  445. イムノバイオティック乳酸菌のToll様受容体を介する腸管免疫調節機構の解明

    北澤春樹, 齋藤忠夫

    日本乳酸菌学会2004年度大会 2004/07/08

  446. ブタTLR2トランスフェクタントの構築とその利用

    遠野雅徳, 北澤春樹, 下里剛士, 加藤真一郎, 川井泰, 齋藤忠夫

    日本畜産学会第103回大会 2004/03/29

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    主指導学生の発表

  447. ブタ TLR9トランスフェクタントによる乳酸菌DNAの免疫評価系の構築

    下里剛士, 北澤春樹, 遠野雅徳, 加藤真一郎, 川井泰, 齋藤忠夫

    日本畜産学会第103回大会 2004/03/29

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    優秀発表賞受賞 主指導学生の発表

  448. ブタインターロイキン-17(IL-17)のクローニングとその特徴

    加藤真一郎, 北澤春樹, 下里剛士, 遠野雅徳, 川井泰, 齋藤忠夫

    日本畜産学会第103回大会 2004/03/29

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    主指導学生の発表

  449. ウシの成長に伴う末梢血T細胞サブセットの変動

    田中沙智, 本多正史, 宮澤光太郎, 北澤春樹, 渡邊康一, 大和田修一, 麻生久, 西田茂, 小原嘉昭, 山口高弘

    日本畜産学会第103回大会 2004/03/29

  450. ヒト血液型糖鎖認識性乳酸菌の腸管付着性機構の解明とその利用(その2)

    内田英明, 下里剛士, 川井泰, 木下英樹, 竹岡憲孝, 北澤春樹, 木村勝紀, 竹友直生, 小田宗広, 齋藤忠夫

    日本畜産学会第103回大会 2004/03/29

  451. ヒト血液型糖鎖認識性乳酸菌の腸管付着性機構の解明とその利用(その3)

    木下英樹, 内田英明, 川井泰, 加藤真一郎, 北澤春樹, 三浦康, 椎葉健一, 堀井明, 齋藤忠夫

    日本畜産学会第103回大会 2004/03/29

  452. Staphylococcal Enterotoxin C (SEC)とLipopolysaccharide (LPS)に対するウシ乳腺上皮細胞の応答

    本多正史, 麻生 久, 北澤春樹, 齋藤忠夫, 山口高弘

    第8回日本乳房炎研究会学術集会 2003/10/09

  453. 大腸菌性乳房炎に伴う乳腺上皮細胞の機能の解析

    本多正史, 麻生 久, 北澤春樹, 岡田洋之, 齋藤忠夫, 熊谷勝男, 山口高弘

    第136回日本獣医学会学術集会 2003/10/03

  454. リン酸化による免疫活性型デキストランの誘導とその免疫賦活化機構

    永沢千穂, 西村順子, 川井泰, 小田宗宏, 北澤春樹, 齋藤忠夫

    日本畜産学会第102回大会 2003/09/25

  455. ブタToll-like receptor(TLR)9の抗体作製と臓器発現部位の解析

    遠野雅徳, 北澤春樹, 下里剛士, 加藤真一郎, 川井泰, 渡邊康一, 山口高弘, 齋藤忠夫

    日本畜産学会第102回大会 2003/09/25

  456. ブタToll-like receptor (sTLR) 9 発現細胞系の構築とその利用

    下里剛士, 北澤春樹, 川井泰, 齋藤忠夫

    日本畜産学会第102回大会 2003/09/25

  457. 乳酸菌DNAモチーフによるブタ腸管におけるサイトカインmRNA発現誘導

    加藤真一郎, 北澤春樹, 下里剛士, 川井泰, 齋藤忠夫

    日本畜産学会第102回大会 2003/09/25

  458. ブタToll-like receptor (sTLR) 9 による乳酸菌DNAモチーフの認識性

    北澤春樹, 下里剛士, 川井泰, 齋藤忠夫

    日本畜産学会第102回大会 2003/09/25

  459. 乳酸菌の免疫活性DNAモチーフ

    日本プロバイオティクス学会 2003/04/18

  460. ウシ初乳中の3'-シアリルラクトースラクトンの存在確認

    齋藤忠夫, 福増潤二, 北澤春樹, 川井泰, 中村正, 浦島匡

    日本農芸化学会2003年度大会 2003/03/31

  461. ブタToll-like receptor(sTLR)2に相互作用をもつsTLR1および6のクローニングとその発現解析

    北澤春樹, 下里剛士, 松本真由美, 加藤真一郎, 川井泰, 齋藤忠夫

    日本農芸化学会2003年度大会 2003/03/31

  462. 環状バクテリオシン:ガセリシンAの構造遺伝子とその周辺遺伝子解析

    川井泰, 石井康之, 西村順子, 北澤春樹, 山崎由紀子, 舘野義男, 齋藤忠夫

    日本農芸化学会2003年度大会 2003/03/31

  463. ブタToll-like receptor(sTLR)2のクローニングとその発現解析

    下里剛士, 北澤春樹, 松本真由美, 加藤真一郎, 川井泰, 齋藤忠夫

    日本農芸化学会2003年度大会 2003/03/31

  464. 市販ペプチド素材からの血圧降下性ペプチドの検索とその製品への利用

    村上まり子, 北澤春樹, 川井泰, 根岸晴夫, 齋藤忠夫

    日本農芸化学会2003年度大会 2003/03/31

  465. ピレン標識法によるガラクトシルラクトースのHPLC二次元マッピング解析法の構築

    長岡 誠二, 渡辺 洋一, 川井 泰, 北澤 春樹, 天野 純子, 齋藤 忠夫

    日本畜産学会第101回大会 2003/03/27

  466. バクテリオシン活性は構成D/L-アミノ酸により制御されるか?

    荒川 健佑, 川井 泰, 伊藤 綾子, 北澤 春樹, 佐藤 實, 齋藤 忠夫

    日本畜産学会第101回大会 2003/03/27

  467. ガセリシンAのウシ乳房炎由来黄色ブドウ球菌に対する抗菌活性とその利用

    伊藤 綾子, 川井 泰, 荒川 健佑, 北澤 春樹, 小峯 健一, 熊谷 勝男, 齋藤 忠夫

    日本畜産学会第101回大会 2003/03/27

  468. 乳酸菌遺伝子データバンクを用いたCpG DNAモチーフの検索と同モチーフを含む合成オリゴDNAの免疫活性

    北澤 春樹, 加藤 真一郎, 下里 剛士, 川井 泰, 齋藤 忠夫

    日本畜産学会第101回大会 2003/03/27

  469. Lactbacillus acidophilusグループ乳酸菌のニワトリ腸管付着性機構の解析

    齋藤 忠夫, 藤谷 憲治, 内田 英明, 川井 泰, 北澤 春樹

    日本畜産学会第101回大会 2003/03/27

  470. 乳酸菌の作る多糖:デキストランのリン酸化による免疫賦活化剤の開発

    西村 順子, 佐藤 俊宏, 北澤 春樹, 下里 剛士, 川井 泰, 齋藤 忠夫

    日本畜産学会第101回大会 2003/03/27

  471. 表面プラズモン共鳴(SPR)によるヒト腸管付着性乳酸菌の新規選抜システム

    内田 英明, 藤谷 憲治, 川井 泰, 西村 順子, 北澤 春樹, 木村 勝紀, 竹友 直生, 齋藤 忠夫

    日本畜産学会第101回大会 2003/03/27

  472. 乳酸菌菌体外多糖の有用性:免疫応答に対する生理効果を中心に

    狩野 宏, 内田勝幸, 小田宗宏, 齋藤忠夫, 北澤春樹

    日本乳酸菌学会2002年秋期セミナー 2002/11/28

  473. 乳酸菌DNAモチーフの腸管パイエル板細胞における取り込みとサイトカイン制御

    北澤春樹, 下里剛士, 川井泰, 齋藤忠夫

    平成14年度日本酪農科学会シンポジウム 2002/09/20

  474. 微生物由来DNAモチーフを認識するToll-like receptor(TLR9)のブタパイエル板からのクローニングと発現解析

    下里剛士, 北澤春樹, 川井泰, 齋藤忠夫

    平成14年度日本酪農科学会シンポジウム 2002/09/20

  475. β-ガラクトシダーゼによる機能性シアル酸含有オリゴ糖(SO)の転移合成

    渡辺洋一, 福増潤二, 北澤春樹, 川井泰, 齋藤忠夫

    平成14年度日本酪農科学会シンポジウム 2002/09/20

  476. JCMカルチャーコレクションの利用と登録(ユーザーの立場から)

    斉藤忠夫, 北澤春樹, 川井 泰, 西村順子, 伊藤敞敏

    日本乳酸菌学会2002年度大会 2002/06/27

  477. L. bulgaricus OLL1073R-1の生産する菌体外多糖のマクロファージにおけるサイトカイン誘導能

    西村順子, 北澤春樹, 川井 泰, 伊藤敞敏, 小田宗宏, 斉藤忠夫

    日本乳酸菌学会2002年度大会 2002/06/27

  478. 降圧ペプチドとプロバイオティック乳酸菌による新型ヨーグルトの開発

    齋藤 忠夫, 殿内 秀和, 澤木 敬子, 北澤 春樹, 川井 泰, 伊藤 敞敏

    日本畜産学会第100回大会 2002/03/28

  479. Lactobacillus gasseriによるプロバイオティック発酵乳の製造と産生バクテリオシンの乳中における活性コントロール

    川井 泰, 上田 真弓, 藤谷 憲治, 北澤 春樹, 伊藤 敞敏, 齋藤 忠夫

    日本畜産学会第100回大会 2002/03/28

  480. 表面プラズモン共鳴法(SPR)を用いたL. acidophilusグループ乳酸菌のニワトリ腸管付着性の新規解析法

    藤谷 憲治, 内田 英明, 川井 泰, 北澤 春樹, 齋藤 忠夫

    日本畜産学会第100回大会 2002/03/28

  481. ヒト腸管起源Lb. gasseri JCM1031からの第3のラクトース資化性酵素は、真性ホスホ-β-グルコシダーゼか?

    大島 悟, 川井 泰, 北澤 春樹, 舘野 義男, 山崎 由紀子, 齋藤 忠夫

    日本畜産学会第100回大会 2002/03/28

  482. 乳酸菌DNAモチーフの腸管パイエル板細胞による取り込みとサイトカインネットワークの制御

    北澤 春樹, 下里 剛士, 川井 泰, 齋藤 忠夫

    日本畜産学会第100回大会 2002/03/28

  483. ブタToll-like Receptor9(sTLR9)の腸管パイエル板からのクローニングとその発現解析

    下里剛士, 北澤春樹, 川井泰, 齋藤忠夫

    日本農芸化学会2002年度大会 2002/03/24

  484. 同一のヒトの乳児由来乳酸菌L. reuteri LA6およびL. gasseri LA39により産生される環状バクテリオシンの特性解析

    川井泰, 小幡茂裕, 北澤春樹, 伊藤敞敏, 齋藤忠夫

    日本農芸化学会2002年度大会 2002/03/24

  485. 表面プラズモン共鳴(SPR)解析によるヒト腸管付着性乳酸菌のマススクリーニング法

    内田英明, 藤谷憲治, 川井泰, 北澤春樹, 齋藤忠夫

    日本農芸化学会2002年度大会 2002/03/24

  486. 乳酸菌における免疫活性化DNAモチーフの発見

    北澤春樹, 齋藤忠夫

    日本農芸化学会2002年度大会 2002/03/24

  487. ブタ初乳中の酸性ミルクオリゴ糖の構造と毒素原性大腸菌(ETEC)に対する阻害活性の 推定

    齋藤忠夫, 渡辺 浩, 北澤春樹, 川井 泰, 伊藤敞敏, 浦島 匡, 中澤宗生

    日本畜産学会第99回大会 2001/09/15

  488. ヨーグルト用乳酸菌の乳タンパク質相互利用性からの共生関係の解明

    川井 泰, 池田裕一, 西嶋智彦, 北澤春樹, 竹友直生, 伊藤敞敏, 齋藤忠夫

    日本畜産学会第99回大会 2001/09/15

  489. L. bulgaricus NIAI B6株からの免疫賦活化DNAモチーフの発見

    北澤春樹, 渡辺 浩, 上羽悟史, 川井 泰, 伊藤敞敏, 齋藤忠夫

    日本畜産学会第99回大会 2001/09/15

  490. バクテリオシン生産性L. gasseri SBT 2055を用いたプロバイオテイック発酵乳の開発

    藤谷憲治, 川井 泰, 北澤春樹, 上田真弓, 中島 肇, 伊藤敞敏, 齋藤忠夫

    日本畜産学会第99回大会 2001/09/15

  491. ブタ腸管M細胞における機能性高分子取り込み機構の解析

    下里剛士, 北澤春樹, 伊藤敞敏, 川井 泰, 齋藤忠夫

    日本畜産学会第99回大会 2001/09/15

  492. 免疫賦活化能を示す乳酸菌オリゴDNAの発見

    北澤春樹, 上羽悟史, 渡辺 浩, 川井 泰, 伊藤敞敏, 齋藤忠夫

    平成13年度日本酪農科学シンポジウム 2001/08/03

  493. 乳中におけるL. bulgaricus NIAI B6 のカゼイン利用特性

    川井 泰, 西島智彦, 池田裕一, 北澤春樹, 竹友直生, 伊藤敞敏, 齋藤忠夫

    平成13年度日本酪農科学シンポジウム 2001/08/03

  494. Lactobacillus gasseri SBT2055により生産されるバクテリオシン(ガセリシンT・S)の特性

    川井 泰, 斉藤 睦, 藤谷憲治, 北澤春樹, 中島 肇, 伊藤敞敏, 斉藤忠夫

    日本乳酸菌学会2001年度大会 2001/07/10

  495. 熟成型チーズ中に含まれる降圧ペプチドの検索と化学構造解析

    殿内秀和, 齋藤忠夫, 中村友美, 北澤春樹, 川井泰, 伊藤敞敏

    日本畜産学会第98回大会 2001/03/27

  496. シアリダーゼ抵抗性のシアリルラクトースラクトンの高度利用

    福増潤二, 齋藤忠夫, 北澤春樹, 川井泰, 伊藤敞敏, 宮城妙子, 中村正, 浦島匡

    日本畜産学会第98回大会 2001/03/27

  497. 菌体外多糖生産能を有するプロバイオティック乳酸菌の検索

    佐藤俊宏, 北澤春樹, 齋藤忠夫, 川井泰, 西村順子, 伊藤敞敏

    日本畜産学会第98回大会 2001/03/27

  498. ”生体防御食品”としての発酵乳

    北澤春樹

    日本畜産学会第98回大会 2001/03/27

  499. ブタ初乳に含まれる中性ミルクオリゴ糖の化学構造

    齋藤忠夫, 渡辺浩, 北澤春樹, 川井泰, 伊藤敞敏, 浦島匡

    日本農芸化学会2001年度大会 2001/03/24

  500. 乳業用乳酸菌と免疫修飾因子

    日本学術会議 栄養・食糧科学研究連絡委員会 若手シンポジウム 1998/10

  501. プロバイオティック乳酸菌と免疫修飾因子

    第9回日本生体防御学会総会 シンポジウム 1998/07

  502. 乳用乳酸菌と免疫賦活作用

    日本農芸化学会北海道・東北合同支部会 シンポジウム 1992/10

  503. 粘質性発酵乳・乳酸菌の示す免疫賦活化能

    日本酪農科学会 酪農科学シンポジウム 1991/09

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Industrial Property Rights 8

  1. Drug and food composition for enhancing immune responce conaining AT oligonucleotide as the active ingredient

    Kitazawa, Haruki, Saito, Tadao, Shimosato, Takeshi, Sasaki, Takashi, Ito, Yoshiyuki

    Property Type: Patent

  2. 乳腺疾患の検査方法

    麻生 久, 北澤春樹, 渡邊康一, 大和田修一, 渡邉一史, 長澤裕哉, 染谷俊輔, 堀越頼子, 板谷奈波

    特許第6176741号

    Property Type: Patent

  3. 腸管免疫の抑制剤のスクリーニング方法

    北澤春樹, 麻生 久, 高梨直也, 細矢翔一, 池上秀二, 牧野聖也, 木村勝紀

    特許第5852558

    Property Type: Patent

  4. 乳糖不耐症を改善するための乳酸菌

    Saito, Tadao, Kitazawa, Haruki, Kawai, Yasuzhi

    特許第5054687号(P5054687)

    Property Type: Patent

  5. リン酸化ラクトースを含むミネラル吸収強化剤とその製造方法及びそれを含むミネラル強化食品組成物

    齋藤忠夫, 北澤春樹, 川井 泰, 伊藤裕之, 藤本 浩

    特許第4451368号(P4451368)

    Property Type: Patent

  6. ATオリゴヌクレオチドを有効成分とする免疫応答増強性薬剤及び食品組成物

    北澤春樹, 齋藤忠夫, 下里剛士, 佐々木 隆, 伊藤喜之

    特許第5403457号

    Property Type: Patent

  7. Toll様レセプター強制発現細胞の利用

    齋藤忠夫, 下里剛士, 遠野雅徳, 北澤春樹

    特許第4562123号(P4562123)

    Property Type: Patent

  8. 新規ペプチドおよび免疫賦活剤,機能性食品ならびに機能食品の製造法

    齋藤忠夫, 北澤春樹

    特許第4476934号(P4476934)

    Property Type: Patent

Show all Show first 5

Research Projects 61

  1. 家畜健全育成向上戦略:イムノバイオティクスと自然免疫受容体の腸-肺軸シンフォニー

    北澤 春樹, 西山 啓太, 大坪 和香子, Binghui Zhou, 野地 智法, 竹之内 敬人, 新開 浩樹, 須田 義人

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(A)

    Institution: 東北大学

    2023/04/01 - 2027/03/31

  2. 腸内細菌を有効活用した家畜健全育成に貢献する機能性エコフィードの開発基盤創成

    西山 啓太, 北澤 春樹, 生井 楓

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(B)

    Institution: 東北大学

    2023/04/01 - 2026/03/31

  3. Clustering of plasma cells for a comprehensive understanding of immune function in the mammary glands

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2022/04/01 - 2026/03/31

  4. ブタ小腸フローラ・免疫制御システムの統合評価系構築

    北澤 春樹, 西山 啓太, Binghui Zhou

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 挑戦的研究(萌芽)

    Institution: 東北大学

    2023/06/30 - 2025/03/31

  5. 腸内細菌叢と宿主DNAマーカーによる新規ブタ育種基盤の構築

    上本 吉伸, 北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(B)

    Institution: 東北大学

    2022/04/01 - 2025/03/31

  6. ブタ健全育成に貢献する抗菌剤代替イムノバイオティクスの応用基盤研究

    北澤 春樹, SAHA SUDEB

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 特別研究員奨励費

    Category: 特別研究員奨励費

    Institution: 東北大学

    2022/07/27 - 2024/03/31

  7. 菌体外多糖産生イムノバイオティック乳酸菌による抗ウイルス性家畜健全育成戦略

    北澤 春樹, RIAZ RAJOKA MUHAMMAD SHAHID

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 特別研究員奨励費

    Category: 特別研究員奨励費

    Institution: 東北大学

    2021/11/18 - 2024/03/31

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    近年、プロバイオティクスの中でも特に粘膜免疫調節機能性を発揮するイムノバイオティクスやそれが生産する多糖などの免疫活性因子(イムノジェニクス)が注目され、ヒトのみならず家畜健全育成における薬剤代替としての発展的利用性が大いに期待されている。申請者らはこれまでに、人畜共通課題としてのウイルス感染防御の観点から、イムノバイオティクスの家畜対応型選抜・評価系の構築を手掛けてきた。また、外国人特別研究員は、イムノジェニクスとしての乳酸菌産生多糖の免疫機能性に関する研究を進めてきた。そこで本研究では、両者の研究領域を発展的に融合させ、世界共通課題である薬のみに頼らない家畜健全育成技術の飛躍的向上から安全な畜産食品の持続的生産に貢献することを目標として、抗ウイルス免疫機能性を発揮する菌体外多糖生産性イムノバイオティクスに着目し、家畜健全育成における発展的利用性について追究する。申請者が保有する菌体外多糖産生イムノバイオティクスについて、ブタ小腸上皮細胞株を用いたウイルス感染系により、ウイルス感染低減性について評価することを目的とした。本年度は、以下の成果が得られた。 <BR> (1) 菌体外多糖産生イムノバイオティクスの抗ウイルス免疫機能性評価: 菌体外多糖産生イムノバイオティクスを乳酸桿菌用培地で培養後、菌数を調整した試験試料を調製した。ブタ小腸上皮細胞株を用いRNAウイルスモデル評価系により、抗ウイルス免疫因子の発現を指標として、抗ウイルス免疫機能性が認められた。 (2) 菌体外多糖の調製: 菌体外多糖産生イムノバイオティクスの培養上清より、定法に従い多糖画分を調製し、菌体と合わせて試験試料として保存した。 (3) 菌体外多糖の抗ウイルス免疫機能性評価: 2で調製した試験試料について、ブタ小腸上皮細胞を用い1と同様の方法を用いて、各種濃度の前刺激により評価した結果、抗ウイルス免疫調節機能性が認められた。

  8. Increasing effect of cyclophilin A on somatic cell counts in milk of dairy cow

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2021/04/01 - 2024/03/31

  9. 菌体外多糖産生イムノバイオティック乳酸菌による抗ウイルス性家畜健全育成戦略

    北澤 春樹, RIAZ RAJOKA MUHAMMAD SHAHID

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 特別研究員奨励費

    Institution: 東北大学

    2021/04/28 - 2023/03/31

  10. 菌体外多糖産生イムノバイオティック乳酸菌による抗ウイルス性家畜健全育成戦略

    北澤 春樹, RIAZ RAJOKA MUHAMMAD SHAHID

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 特別研究員奨励費

    Institution: 東北大学

    2020/11/13 - 2023/03/31

  11. 植物性乳酸菌の自然界における動態解析と乳酸菌定着植物での病害抑制現象の基盤解明

    高橋 英樹, 北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 挑戦的研究(萌芽)

    Institution: 東北大学

    2019/06/28 - 2023/03/31

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    本研究では自然界に生息する微生物の中で植物性乳酸菌に注目し、植物性乳酸菌の環境中における循環と、植物性乳酸菌が植物にどのような関係を持っているのかを、植物の病害抑制効果の視点から明らかするにことを目的としている。植物性乳酸菌は動物の自然免疫システムを活性化させて、ヒトや家畜の健康に寄与することが知られているが、その植物性乳酸菌の由来については十分な理解がなされていない。また、植物の茎葉には、植物性乳酸菌が定着しているが、自然界における植物に対する植物性乳酸菌の役割についての理解は不十分である。植物性乳酸菌の環境中における動態と、植物に対する病害抑制効果を評価することにより、環境中における植物性乳酸菌と植物・動物との相互関係を包括的理解しようとするものであり、植物の病害防除への応用も期待される。本年度は、イネ種子を滅菌蒸留水に浸漬処理(発芽のための吸水処理)中にイネ種子より滲出してくる液体を乳酸菌選抜培地で培養し、植物性乳酸菌候補となるコロニーを単離した。同菌の分類同定とイネ植物体への定着およびイネ苗病害抑制効果についての検討が必要であるが、コロナ禍の影響により十分な実験時間が確保できなかったため、次年度にはそれらの解析を早急に実施する。一方、植物性乳酸菌であるLactobacillus plantarum CRL1506は、腸管上皮細胞において核酸認識免疫受容体TLR3を介した自然免疫応答を誘導し、その誘導にはlipoteichoic acidの関与が確認された。

  12. 内在性抗菌因子PGRPに着目した育種と飼養の抗病性シナジー強化による健全畜産戦略

    北澤 春樹, 大坪 和香子, 麻生 久, 野地 智法, 上西 博英, 宮崎 綾子, 宗田 吉広, 須田 義人

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 基盤研究(A)

    Category: 基盤研究(A)

    Institution: 東北大学

    2019/04/01 - 2023/03/31

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    本研究は、家畜が有する抗菌因子に着目し、遺伝育種学的手法とイムノバイオティクスの発展的融合により、家畜の抗病性機能強化から抗菌剤に依存しない新たな健全育成技術基盤の創出を目的とする。本年度は、以下の成果が得られた。 【課題1】豚におけるPGLYRPの遺伝子多型と疾病関連形質との関係性解明: 豚PGLYRP1~4について、デュロック種12頭を用いてコード領域その上流5kbの多様性解析を行った。上流配列にはPGLYRP1~4遺伝子でそれぞれ1・10・31・31個のSNPが検出された。また、コード領域にPGLYRP2~4遺伝子でそれぞれ3・7・2個の非同義置換SNPが検出された。 【課題2】PGLYRP増強活性を有するイムノバイオティクスの選抜と抗病性機構解明:豚由来乳酸菌ライブラリーより、PIE細胞を用いたパターン認識受容体を介する抗病性免疫調節機能の観点から4菌株を選抜した。また、イムノバイオティクス候補菌株のPGLYRP発現増強に関する評価を行うと共に、豚由来樹状細胞におけるPGLYRPの発現増強について評価した。 【課題3】HPCD子豚を用いたイムノバイオティクス候補菌株の評価:課題2で選抜された4菌株についてノトバイオート子豚への経口投与を行い、個体レベルでの影響、免疫応答について検討した。また、菌株投与によるロタウイルス感染増殖抑制や症状軽減効果について検討を開始した。 【課題4】一般豚およびPGLYRP選抜豚における健全育成・産肉性向上の実証: LWD豚を供試しイムノバイオティクス候補菌株投与後、血清における生化学検査とサイトカイン濃度、糞便におけるロタウイルス検出、毒素原性大腸菌の検出、腸管組織における免疫関連遺伝子の測定を行うことで、健康性への効果を評価することが可能と考えられた。

  13. Elucidation of reproductive cycle-specific immunological and microbiological dynamics using bioimaging

    Nochi Tomonori

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2018/04/01 - 2022/03/31

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    The evolutionary strategy of transferring maternal antibodies via milk profoundly impacts the survival, lifelong health and wellbeing of all neonates. While there has been increased recognition that interorgan connectivity influences the quality of a mother’s milk, potentially to personalize it for her offspring, the underlying bases for these processes are incompletely resolved. Here we define an essential role of Peyer’s patches (PP) for the generation of plasma cells that secrete maternal IgA into milk. Our metagenomic analysis reveals that the presence of certain residential microorganisms in the gastrointestinal tract, such as Bacteroides acidifaciens and Prevotella buccalis, is indispensable for the programming of maternal IgA synthesis prior to lactational transfer. Our data provide important insights into how the microbiome of the maternal gastrointestinal environment, specifically through the PP, can be communicated to the next generation via milk.

  14. ブタ由来イムノバイオティクスによるエピジェネティック修飾の家畜健全育成応用戦略

    北澤 春樹, ISLAM MD. Aminul

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 特別研究員奨励費

    Category: 特別研究員奨励費

    Institution: 東北大学

    2018/10/12 - 2021/03/31

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    近年、乳酸菌やビフィズス菌に代表されるプロバイオティクスの中でも、特に腸管などの粘膜免疫組織において免疫調節機能性を発揮するイムノバイオティクスが注目され、家畜健全育成の飛躍的向上を目指した抗菌剤代替としての発展的利用性が期待されている。我々はこれまでに、抗菌剤代替としてのイムノバイオティクスの家畜対応型選抜・評価系の確立を手掛けてきた。また、外国人特別研究員は、家畜の生体防御免疫機能性におけるジェネティックおよびエピジェネティックな解析を進めてきた。そこで本研究では、それらの研究領域を発展的に融合させ、世界共通課題である薬剤のみに頼らない家畜健全育成技術の飛躍的向上から安全な畜産食品生産に貢献することを目標に、とりわけイムノバイオティクスによる粘膜免疫機構のエピジェネティック修飾に着目した新たな研究基盤を構築し、家畜対応型イムノバイオティクスの発展的利用性について追究する。本年度は、以下の項目について実施し幾つかの研究成果が得られた。具体的には、ブタ由来乳酸桿菌を分離・同定し、イムノバイオティクス評価候補菌株の選抜を進めた。 1.離乳1~2ヶ月齢のブタ腸管(空腸、回腸およびそれらのパイエル板)よりプレート寒天培地法によりグラム陽性微生物を単離した。さらに乳酸桿菌に着目し、16s rRNA塩基配列解析により菌種同定を行った。その結果、乳酸桿菌100株程度の単離同定を進めることができた。 2.1で単離した菌株を対象として、イムノバイオティクスの選抜にあたり、まずブタ腸管ムチンならびに上皮細胞における接着性の機能評価を行った。その結果、イムノバイオティクス評価の候補菌株を10菌株程度選抜することができた。次年度以降で、さらにエピジェネティック修飾に着目したイムノバイオティクスとしての免疫調節機構解明を進める。

  15. Effect of cyclophilin A in exosome produced by mammary epitheliocyte on bovine mastitis.

    Aso Hisashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2018/04/01 - 2021/03/31

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    Cyclophilin A (CyPA) was originally discovered in bovine thymocytes as a cytosolic binding protein of the immunosuppressive drug cyclosporine A. CyPA is secreted a soluble form and a component in exosome from bovine mammary epithelial cells just before the occurring of mastitis. Exosomes were purified from milk whey of health or mastitis cattle. There were no differences in the size and the CyPA contents of exosomes between health and mastitis cattle. As CyPA in exosome was not measured by ELISA, an increasing CyPA in mastitis milk was a soluble form.

  16. Elucidation of the organ-network between the mammary glands and intestine to enhance maternal immunity

    NOCHI TOMONORI

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Research (Exploratory)

    Institution: Tohoku University

    2017/06/30 - 2020/03/31

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    In this study, we demonstrated the development of microbial environment in milk of humans, cows and mice, and such bacteria differ among the host species. Since the maternal immunity is affected by microorganisms that cohabit in the host, we tried to improve the microflora by inoculation of lactic acid bacteria (CRL1505) that has been used as a probiotics to stimulate mucosal immunity. However, the level of maternal antibody production was not changed by administration with CRL1505. Given that the disturbance of microflora affect the level of maternal IgA production in milk, these results suggested that some microorganisms (not lactic acid bacteria) present in mucosal tissues may be involved in inducing maternal antibody transfer to the offspring.

  17. Development of an evaluation system for anti-disease immunobiotics of livestock and its applied strategy

    Kitazawa Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2016/04/01 - 2020/03/31

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    An in vitro unique anti-disease selection and evaluation system for the livestock-responsive immunobiotics (mucosal immunomodulatory functional probiotics) was developmentally established, and the basic technology for the livestock healthy growth strategy was established via the development and use of this system. Specifically, an infection system for bacterial, viral, and other enteric pathogens was established using intestinal epithelial cell lines derived from livestock, and an evaluation system was constructed using the ability to protect against infection as an parameter. In addition, the evaluation system selected anti-disease immunobiotics and validated the usefulness of this system by in vivo confirmation study.

  18. Development of probiotics for the control of inflammatory bowel disease

    Ohtsubo Wakako, Kitazawa Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Research (Exploratory)

    Institution: Tohoku University

    2017/06/30 - 2019/03/31

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    Culture enrichments of human gut microbiota using various polysaccharides as a substrate were performed and bacterial strains affiliated with Lachnospiraceae, which produce butyrate and simultaneously degrade algae polysaccharides, were found. We screened probiotic bifidobacterial strains with an ability to utilize fucose to establish a co-culture of butyrate-producing Lachnospiraceae and probiotics. We also identified bifidobacterial strains with an ability of competitive adhesion to purified human mucosal polysaccharides against sulfate-reducing bacteria, which occurrence has been known to be correlated with inflammatory bowel disease. Our findings offer a new aspect of probiotics for preventing inflammatory bowel disease by promoting butyrate-producing bacteria or by preventing sulfate-reducing bacteria in human intestine.

  19. Serotonin improves high fat diet induced obesity in mice by the activations of PGC-1 alpha and UCP1 through 5-HTR2A and 7

    Aso Hisashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2016/04/01 - 2018/03/31

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    Mice were fed a chow (Ch) diet or a high fat (F) diet and orally administrated with serotonin (5-HT) every morning between the ages of 5 and 26 weeks. Mice on the F diet gained significantly more weight than the Ch fed mice. In order to identify the target tissues of the effect of 5-HT on energy metabolism, we focused on brawn adipose tissue. PGC-1 is a master regulator that promotes mitochondrial biogenesis and an activity of uncoupling protein (UCP) 1 in brawn adipose tissue. 5-HT increased the expressions of PGC-1-a, b, c and UCP1. Brawn adipose tissue had higher expressions of 5HTR2A, 2B and 7. Mice were pre-treated with several 5-HTR antagonists at 30 min before 5-HT injection. We revealed that 5-HT increased the mRNA expressions of PGC-1and UCP1 through 5-HTR2A and 7.

  20. Comprehensive analysis by 'Immunobiogenomics' for expanding the immunobiotic availability

    Kitazawa Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2016/04/01 - 2018/03/31

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    In this study, we were able to build a certain base for elucidating a strain-specific mucosal immunoregulatory mechanisms of Immunobiotics by constructing an "Immunobiogenomics" in the interdisciplinary study field between bioinformatics and immunobiotics. Expansion for effective availability of Immunobiotics is expected and can thereby contribute to further studies and industrial development.

  21. 家畜健全育成技術向上のためのイムノバイオティクスの薬剤代替利用性に関する研究

    北澤 春樹, KOBER A. K. M. Humayun

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 特別研究員奨励費

    Category: 特別研究員奨励費

    Institution: 東北大学

    2015/11/09 - 2018/03/31

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    近年、プロバイオティクスの中でも、腸管などにおいて抗炎症免疫機能性を発揮するイムノバイオティクスが注目され、その飼料および食品における発展的利用性が期待されている。一方、家畜の腸管感染性下痢症の疾病悪化と慢性炎症の誘導には、炎症調節の破綻が関わることが知られている。本研究は、薬のみに頼らないブタの健全育成技術の向上を目指し、抗炎症性イムノバイオティクスの薬剤代替利用性について追究することを目的とした。本年度は、昨年度までの成果を基礎として、ブタ腸管上皮細胞やブタ筋肉内脂肪細胞におけるイムノバオティクスの炎症調節機構を解明し、薬のみに頼らないブタの健全育成から産肉性向上に貢献するための基盤を構築した。具体的には以下の項目について検討し、それぞれの成果が得られた。 1.ブタ腸管上皮(PIE)細胞をイムノバイオティクス候補菌により前刺激後、ウイルスならびに病原細菌で刺激し、免疫パラメータの遺伝子発現調節を指標として、抗感染免疫調節機構の解明を推進することができた。 2.PIP細胞より脂肪細胞を分化誘導後、炎症や脂肪蓄積に関わる因子を指標として、イムノバイオティクスが有するパターン分子による免疫調節機構の解明の基礎を得ることができた。 3.PIP細胞の脂肪細胞への分化過程におけるパターン認識受容体刺激と脂肪代謝関連因子の発現調節との関連が認められたことから、イムノジェニクス(イムノバイオティクスが有する免疫機能性因子)による脂肪蓄積制御に関連する免疫調節機構の発展的解明への糸口が見出された。

  22. Prion protein binds to aldolase A of bovine intestinal M cells

    Aso Hisashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2015/04/01 - 2018/03/31

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    BSE is a fatal neurodegenerative disorder in cattle and is linked to variant Creutzfeldt-Jakob disease in humans. We show that M cells can incorporate large numbers of PrP coated magnetic particles into intracellular vesicles, which we collected. The results of 2-DE show a specific protein associated with the PrP-coated particles. This protein was identified as aldolase A using LC-MS/MS analysis. The binding of rbPrP to aldolase A was inhibited by pre-treatment of anti-aldolase A antibody. We established the aldolase-knockout cell line (MIE ALDOA -/- cells) by TALEN method. After the differentiation for M cell, MIE ALDOA -/- cells lacked the ability of transporting PrP coated magnetic particles into the basal media through the intracellular vesicles. These results suggest that bovine M cells synthesize aldolase A, and that aldolase A-positive M cells may play a key role in the invasion of BSE into the body.

  23. Construction of new functional yogurt with prevention to IBD(inflamatory bowel disease) by blood type lactic acid bacteria.

    SAITO TADAO

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2014/04/01 - 2017/03/31

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    Inflammatory bowel diseases such as ulcerative colitis or Crohn disease increase rapidly in the young Japanese recently. The cause is still unknown and becomes the big problem in the world. We studied the yogurt using the lactic acid bacteria (LAB) which remove harmful bacteria by production of antibacterial peptides or stimulate immunity until now. We studied the adhesion of bacteria to human intestine by a biosensor Biacore and discovered "a blood type lactic acid bacterium" in human intestinal tract for the first time in the world. Using a blood type lactic acid bacterium indicating this high human intestinal tract adhesion, we could developed the new feature-related yogurt which enabled the prevention and remission by removing a pathogen and various harm bacteria of the ulcerative colitis by the competitive inhibition according to the blood type and, in this study, showed possibility to prevent illness.

  24. Function of blood dendritic cells in mastitis cow

    Aso Hisashi, KITAZAWA HARUKI, NOCHI TOMONORI, WATANABE KOUICHI

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2014/04/01 - 2016/03/31

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    Dendritic cells (DC) are bone marrow-derived antigen presenting cells. They play an important role in priming adaptive immunity and in mature immune responses against pathogens. The biological activities of DC are highly dependent on their migratory potential and on the expression of adhesion molecules with T lymphocytes. DC secrets the cytokines and then polarizes immune responses to Th1-mediated cellular or Th2-mediated antibody responses. We obtained blood samples from cows at 30 days before and after parturition, and then purified DC at more than 85% using MACS system. All of DC-fraction cells expressed DC surface makers such as MHC-II, CD172a and CD11c. Probiotic feed containing Bacillus subtilis C-31-2 strain increased the expression of costimulatory molecules CD80/86 and CD40 on the cell surface of DC. These data indicate that probiotics Bacillus subtilis C-31-2 strain is able to modulate the functions of T cells and inhibit the inflammation in mastitis cow.

  25. Development of immunobiotic evaluation system for both regulation of obesity and improvement of meat production

    Kitazawa Haruki, ASO HISASHI

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2014/04/01 - 2016/03/31

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    In this study, a new immunobiotic assay system for regulation of fat accumulation in adipocytes was successfully developed by using porcine intramuscular preadipocyte (PIP) line based on the innate immune features. The utility of the assay system has been expected for the selection of certain immunobiotic candidate double exerting both anti-obesity in human and improvement of meat production in livestock.

  26. 抗ウイルス性イムノバイオティクスの飼料・食品免疫学的利用性に関する研究

    北澤 春樹, Kanmani Paulraj, KANMANI Paulraj

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 特別研究員奨励費

    Category: 特別研究員奨励費

    Institution: 東北大学

    2013/04/01 - 2016/03/31

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    【研究の目的】 近年、乳酸菌やビフィズス菌に代表されるプロバイオティクスの中でも腸管免疫調節機能性を発揮するイムノバイオティクスが注目され、飼料・食品における発展的利用性が期待されている。そこで、本研究では、家畜腸管上皮細胞におけるイムノバイオティクスやイムノジェニクス(イムノバイティクス由来の活性因子)の腸管免疫調節機構解明と抗ウイルス感染免疫選抜・評価システムを基礎として、抗ウイルス免疫調節性イムノバイオティクスを選抜・評価し、飼料・食品免疫学的利用性を追究することを目的とする。本年度は、ブタ腸管上皮(PIE)におけるロタウイルス感染系を用いて、イムノバイオティクスおよびイムノジェニクスの効果について評価し、RNA感染モデル系において、抗感染免疫調節機構について検討した。 <BR> 【研究成果】 1.PIE細胞のロタウイルス感染系における評価:PIE細胞をイムノバイオティクスあるいはイムノジェニクスで前刺激後、A群ロタウイルス株を暴露させ、ウイルス感染・増殖性について、間接蛍光抗体法により解析したところ、ロタウイルス感染・増殖性の抑制が認められた。2.PIE細胞のdsRNA感染モデルにおける抗感染免疫評価:PIE細胞をイムノバイオティクスあるいはイムノジェニクスで前刺激後、Poly(I:C)で刺激後、抗ウイルス性サイトカインおよび炎症性サイトカインの遺伝子発現を測定したところ、I型IFNの発現増強と炎症性サイトカインの発現抑制が認められた。さらに、それらは細胞内シグナル因子の調節に関連することが示唆された。 以上の研究により、抗ウイルス免疫調節性イムノバイオティクスやイムノジェニクスの選抜・評価が可能となり、飼料・食品免疫学的利用性が飛躍的に進むものと期待される。

  27. Molecular immunoregulations in the intestinal inflammatory cell intranet by immunobiotics for their advanced application

    Kitazawa Haruki, SAITO TADAO, ASO HISASHI, SUDA YOSHIHITO

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2012/04/01 - 2016/03/31

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    In this study, detailed mechanisms for the recognition and anti-inflammation of immunobiotics in the gut was analyzed by using livestock intestinal epithelial and dendritic cells. As a result, high recognition for immunobiotics by porcine dendritic cells was observed and a common intracellular regulator induced by immunobiotics was found in porcine intestinal epitheliocytes. Furthermore, anti-inflammatory ability of immunobiotics could be verified in vivo study. This study contributes to progress an understanding the molecular regulation of inflammatory cell intranet by immunobiotics.

  28. Prion protein binds to aldolase A in intracellular vesicles of bovine intestinal M cells

    ASO Hisashi, WATANABE Koichi, KITAZAWA Haruki, OKADA Natsumi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2012/04/01 - 2015/03/31

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    The exact mechanism by which BSE crosses the intestinal barrier is not clear. M cells are able to incorporate large numbers of PrP coated magnetic particles into intracellular vesicles, which we collected. The results of 2-DE show a specific protein associated with the PrP-coated particles. This protein was identified as aldolase A, a glycolytic pathway enzyme, using LC-MS/MS analysis. Aldolase A was synthesized and secreted by BIE cells, and increased during M cell differentiation. In the villi of the bovine intestine, aldolase A was detected on the surface of the epithelium and in the mucus droplet of goblet cells. In the FAE of bovine jejunal and ileal Peyer’s patches, aldolase A was localized on the surface and the apical part of the M cells. The binding of rbPrP to aldolase A was clearly detected and inhibited by pre-treatment of anti-aldolase A antibody. Therefore, aldolase A-positive M cells may play a key role in the invasion of BSE into the body.

  29. Advanced utilization of fermented food by-products: Development of Eco-immuno feeds"supporting health and environment

    KITAZAWA Haruki, ASO Hisashi, SUDA Yoshihito

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2011 - 2012

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    In this study, for beneficial use of lactic acid bacterial fermentation liquid as underutilized resources, we focused on immunobiotics and immunogenics in the liquid and relating products, and examined fundamental analysis to develop as a novel “Immuno-Eco Feeds" contributing to the reduction of health hazards risk as livestock antimicrobial alternatives. Specifically, a safety of the liquid and immuneregulatory effects in porcine intestinal cells were evaluated, and in vivo confirmation study and in vitro detailed study of its mechanisms were also conducted.

  30. Construction of anti-ulcerative colitis (UC) yogurt by probiotic blood type lactic acid bacteria

    SAITO Tadao, KITAZAWA Haruki, KAWAI Yasushi, NISHIMURA Junko

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2010 - 2012

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    A new evaluation system to select probiotic lactic acid bacteria (LAB) with adherence to human colonic mucin (HCM) by recognizing sialic acid and/or surfate on ABO-blood type antigens. LAB strains showing strong adhesion to human blood type-A antigen expressed on the intestinal mucosa were selected from 237 probiotic strains using the biosensor BIACORE. A similar method was used to select harmful bacteria that also recognizing the same antigen in the human intestine. Fusobacterium varium was detected as one of harmful bacteria from the patient of ulcerative colitics. Using a competitive adhesion experiment with a micro plate coated with the type-A antigen and the harmful bacteria, the bacteria was significantly decreased when they were added in combination with the type-A LAB. Our data suggested the blood type LAB strains may competitively inhibit pathogenic infections where this strategy may be useful in the development of improved future probiotic foods to protect human health.

  31. Identification of membrane proteins associated with Prion invasion in bovine intestinal microfold (M)cells

    ASO Hisashi, YAMAGUCHI Takahiro, OHWADA Shuichi, WATANABE Koichi, KITAZAWA Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2009 - 2011

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    In order to identify a membrane protein associated with the Prion invasion in bovine intestinal microfold (M)cells, M cell-differentiated bovine intestinal epitheliocyte cell line (BIE cells)were treated with recombinant bovine prion protein-coated magnetic beads, and then vesicles including magnetic beads were purified from BIE cells. After 2D-electrophoresis, fructose-bisphosphate aldolase A was identified using LC-MS/MS spectrometer. Aldolase A were specifically expressed on M cells in ileal Peyer's patches and the epithelium in myctero pharynges, these tissues of which were thought to be associated with Prion invasion. In addition, the far western analysis revealed that aldolase A could bind to prion protein.

  32. パターン認識受容体を介する腸管免疫調節性プロバイオティクスの食品免疫学的利用性

    北澤 春樹, VILLENA J.C.

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 特別研究員奨励費

    Category: 特別研究員奨励費

    Institution: 東北大学

    2009 - 2011

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    【研究の目的】 本研究は、ヒトモデル系として期待されるブタにおいて、下痢症に関わる免疫パラメータを指標として、イムノバイオティクスの選抜から、その実証研究を行うことを目的としている。本年度は、昨年度までの成果を基礎として、イムノバイオティック機構の解析を進め、選抜イムノバイオティクスの有用性について検討した。 【研究成果】 1.イムノバイオティクスのPIE細胞における抗炎症シグナル伝達機構:選抜イムノバイオティクスによる細胞内シグナル分子の活性調節について解析したところ、MAPKのリン酸化とIkB分解の抑制が認められ、それらに関連するネガティブ調節因子の発現誘導が見られた。2.腸管パイエル板モデル培養系による抗炎症機能解析:PIE細胞と腸管パイエル板由来免疫担当細胞との共培養系において、抗炎症性発現における細胞間のサイトカインネットワークの特徴が把握できた。これらの結果から、選抜イムノバイオティクスの腸管抗炎症に関わる調節機構の一端が解明できた。今後、インビボ実証試験を続けることにより、選抜イムノバイオティクスの有用性が検証できる。

  33. Basic and applied studies on immunobiotics by using intestinal peyer's patch model system of live stock animals

    KITAZAWA Haruki, SAITO Tadao, ASO Hisashi, KAWAI Yasushi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2009 - 2011

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    In this study, advanced immunobiotic assay systems for anti-inflammatory and anti-viral immunity was successfully developed by using originally established intestinal epithelial cells from live stock animals. The utility of these assay systems was verified by in vivo trial of selected immunobiotic candidate by these assay system in swine. This study may contribute to develop a safer technique without any drugs for livestock production.

  34. パターン認識受容体発現細胞ライブラリーによるプロバイオティクス免疫評価基盤の構築

    北澤 春樹, 齋藤 忠夫, 川井 泰

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 挑戦的萌芽研究

    Category: 挑戦的萌芽研究

    Institution: 東北大学

    2008 - 2009

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    【目的】近年、乳酸菌に代表されるプロバイオティクスの生理機能性を生かした特定保健用食品は、健康ブームから一大市場を形成し、食品業界の革命的存在となった。一方、プロバイオティクスの中でもとくに腸管免疫調節作用を有するものを「イムノバイオティクス」とする新しい概念が提唱されたが、活性因子の同定とその客観的な分子免疫評価基盤の確立が課題となり、未だ免疫機能を訴求した特定保健用食品の創成には至っていない。本研究では、免疫機能を訴求した特定保健用食品の創成基盤を築くため、新たな分子免疫評価系ライブラリーを開発し、イムノバイオティクスの多様な免疫機能の客観的評価基盤を確立することを目的とした。 【研究成果】パターン認識受容体を発現する腸管上皮細胞を用いて、腸管パイエル板由来免疫細胞と共培養することにより、腸管におけるイムノバイオティクスのパターン認識受容体を介する免疫評価の基盤を構築した。(1)インターセルを用いた共培養システムにより、ブタ腸管上皮細胞(PIE)とブタパイエル板由来の免疫担当細胞との相互作用を成立させた。(2)本システムにおいて、パターン認識受容体のリガンドでPIE細胞を刺激培養後、免疫担当細胞からのサイトカイン誘導を解析し、免疫調節機能を評価することができた。これらの成果は、パターン認識受容体発現細胞によるイムノバイオティクスの発展的腸管免疫評価系の構築につながる。

  35. Construction of yogurt with strong exclusion ability of harmful bacteria by probiotic blood type lactic acid bacteria

    SAITO Tadao, KITAZAWA Haruki, KAWAI Yasushi, NISHIMURA Junko

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2007 - 2009

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    A new evaluation system to select probiotic lactic acid bacteria (LAB) with adherence to human colonic mucin (HCM) by recognizing ABO-blood type antigens. LAB strains showing strong adhesion to human blood type-A antigen expressed on the intestinal mucosa were selected from 237 probiotic strains using the biosensor BIACORE. A similar method was used to select harmful bacteria that also recognizing the same antigen in the human intestine. Staphyrococcus. ssp. and E. coli were detected harmful bacteria. Using a competitive adhesion experiment with a micro plate coated with the type-A antigen and the harmful bacteria, the bacteria was significantly decreased when they were added in combination with the type-A LAB. Our data suggested the blood type LAB strains may competitively inhibit pathogenic infections where this strategy may be useful in the development of improved future probiotic foods to protect human health.

  36. 植物寄生性LactobacillusによるNOD1活性化と消化管粘膜自然免疫増強

    高田 春比古, 上原 亜希子, 北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 萌芽研究

    Institution: 東北大学

    2007 - 2008

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    近年、菌体成分をパターン認識して生体防御を担う自然免疫系の研究が飛躍的に進んだ。細菌細胞壁の骨格を成すペプチドグリカン(PGN)に関しては、Toll-like receptor(TLR)2に加えて、細胞内レセプターNOD1とNOD2が、それぞれジアミノピメリン酸(DAP)含有ペプチド構造とムラミルペプチド構造を認識する。プロバイオテイクスに頻用される動物寄生性Lactobacillus(乳酸菌)はDAPを保有しないが、植物寄生性のLactobacillus plantarumはDAP型でNOD1とNOD2両方のリガンド構造を有している。本研究はL. plantarum PGNが多様なレセプターを介して、局所(腸管粘膜)ならびに全身の免疫機構を強力に活性化する可能性を探るものである。[本年度の成果と考察]PGNの免疫増強作用、特に細胞性免疫(Th1応答)増強作用の研究には伝統的にモルモットが供試されてきた。実際、MDPに関してモルモットやヒトは高応答性で、マウスは低応答性との報告がある。共同研究者の遠野雅徳博士(学振特別研究員)らはヒトに近いモデル動物としてブタを供試して各種乳酸菌のプロバイトテイクスとしての研究を進めている。その一環として、ブタのTLR系ならびにNOD1/2遺伝子をクローニングしてその機能解析を進めてきた。そこで、遠野博士らの協力を得て、モルモットのNOD1ならびにNOD2遺伝子をクローニングしたところ、その塩基配列はヒトに類似性が高く、マウスとは異なっていた。[今後の計画]モルモットNOD1/2分子の機能をヒトならびにマウスのそれらと比較しながら解析して、NOD1/2系に関して、モルモットがヒトに近いモデルであることを実証した上で、L. plantarumの免疫増強作用を動物寄生性乳酸菌のそれと比較検討して、その有用性を実証したいと考えている。

  37. Mechanism of biosynthesis for circular antibacterial peptides produced by lactic acid bacteria from human intestines

    KAWAI Yasushi, SAITO Tadao, KITAZAWA Haruki, NISHIMURA Jyunko

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2007 - 2008

  38. Basic studies on the prevention and improvement on intestinal bowel disease by immunobiotics and their advanced application

    KITAZAWA Haruki, SAITO Tadao, ASO Hisashi, KAWAI Yasushi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2006 - 2008

  39. 血液型乳酸菌による腸内有害菌排除システムの構築と利用

    齋藤 忠夫, 北澤 春樹, 川井 泰

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 萌芽研究

    Institution: 東北大学

    2006 - 2007

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    本研究は、これまでの我々のヒトおよび動物の腸管系乳酸菌に対して得られた多くの知見を基礎として、とくに我々の研究室で発見された「血液型乳酸菌」を用いたヒト大腸内での大腸菌に代表される有害菌の競合的排除および大腸などの腸管内での食中毒細菌や病原性細菌の競合的排除機構、付着因子(アドヘシン)の同定などを通して、腸管上皮細胞からインビボ試験に至るまで、プロバイオティック血液型乳酸菌の利用の観点から総合的に腸内健康の維持機構を解明する。最終的には、ヒトや動物に有効な血液型乳酸菌の選抜利用を通して、胃や大腸などの消化管局所で整腸効果を発揮する、消化管疾患予防能をもつ新規腸内健康維持食品の開発を目指すことを目的としている。 ヒトの腸疾患などを選抜乳酸菌により予防・改善する新規機能性畜産食品の開発を目指して、その基礎研究を行った。本年度は、ヒト大腸ムチンに発現する結合糖鎖の中で、とくにABO式血液型抗原部位を認識して結合する「プロバイオティック血液型乳酸菌」の広域スクリーニングを行って、優れた有害菌ライブラリーを構築した。また同時に、同じ血液型抗原に対して結合性を有する病原性細菌である「血液型有害菌」の単離同定も同時並行的に実施して優れた病原性細菌ライブラリーも構築した。次いで、ヒト腸管の腸内細菌叢(フローラ)における腸管付着性や定住性機構を解明するために、血液型結合性菌株を善玉菌と悪玉菌から選抜して、その相互作用のBIACOREによる解析、ヒト腸管細胞培養株での相互作用確認解析、結合因子の同定と糖鎖認識部位のエピトープ解析などを実施した。

  40. Immunoregulatory activity of phosphopolysaccharides from lactic acid bacteria and their applications to functional foods

    NISHIMURA Junko, SAITO Tadao, KITAZAWA Haruki, KAWAI Yasushi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2005 - 2006

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    [Purpose] We have been studied on the physiological functions of phosphopolysaccharide produced by lactic acid bacteria. In this study, we examined the ability of phosphorylated dextran (P-dextran) to regulate immune function in vitro and in vivo. Especially, we focused on the relationship between P-dextran and prevention from allergy, and investigated whether P-dextran suppress allergy or not in ovalbmin (OVA) immunized mice. We also demonstrated the recognition of phosphopolysaccharides by the innate immune system and the activity of phosphopolysaccharide would help in the development of physiologically functional foods. [Methods and Results] Maximal chemical phosphorylation (6.8%) was obtained by incubation of dextran with phosphate buffer (pH 5.0) for 24 h at 160℃. The mitogenic response of murine splenocytes was enhanced by the P- dextran, and its activity was related to its phosphorus content. P-dextran was also found to be a B-cell mitogen. Mice immunized with OVA were orally administrated P-dextran. The mRNA levels for Thl-type cytokines such as interleukin (IL)-2, IL-12p40, and interferon-g were increased by treatment with P-dextran. In addition, we found that the administration of P-dextran had augmented immunostimulatory activities against Thl immune responses in the Th2- polarized model. It also greatly increased the expression of CD86 on CD11^c+ CD8a^- cells. Oral administration of P- dextran in OVA-immunized mice also increased the gene expression of IL-10. These results show that P-dextran can reduce allergic responses and enhance immunological tolerance. Furthermore, we cloned the cDNAs encoding porcine RP105 and MD-lfrom Peyer's patches of adult swine and identified phosphopolysaccharide as an active substance that can induce immune activation via RP105 and MD-1. These results strongly suggest that the induction of phosphate groups into polysaccharide could improve allergy and established a part of immunostimulatory reactions.

  41. The construction of new functional yogurt by probiotics lactic acid bacteria (LAB) with strong lactose hydrolyzing ability.

    SAITO Tadao, KITAZAWA Haruki, KAWAI Yasushi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2004 - 2006

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    Lactobacillus gasseri is known to be exist in human intestine, so the strain is widely used for the construction of functional yogurt as probiotics lactic acid bacteria (LAB) in Japan. In this study, it has been clarified the existence of three type of lactose hydrolyzing enzymes beta-galactosidae (β gal), phospho-beta-galactosidase (P β gal) and phospho-beta-glucosidase (P β glc) in LAB including L.gasseri. In this research, PbgA (phospho-beta-galactosidase A) was first isolated from L.gasseri ATCC33233^T and investigated by kinetics analysis. As the expression rate was very low for PbgB in the L.gasseri ATCC33233^T, we prepared the enzyme by expression with Lc.lactis subsp. cremoris and analyzed K_m and V_<max> values. We also investigated the adhesion activity of LAB to human colon mucin by a biocencer BIACORE which is one of most important requirement of probiotics. We could selected many adhesive LAB with high affinity to human mucin with ABO blood type A,B and O type. In the last stage of our research, to prevent the lactose intolerance in Japanese, we did mass-screening of LAB with high lactase activity from more than 200 strains of LAB isolated human intestine. Finally, we selected Lb. mucosae OLL2848,Lb. gasseri OLL2836 and Lb.gasseri OLL 2948 strains and constructed the new type of functional yogurt by using these three LAB strains. It was expected the decrease of symptoms of lactose intolerance especially to elderly peoples.

  42. Study on anti-allergic activity of DNA from immunobiotics and its application for biodefence foods.

    KITAZAWA Haruki, SAITO Tadao, KAWAI Yasushi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2003 - 2005

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    Recent interest has focused on the importance of intestinal immunity for the host defense, but to date, not much has been known about the underlying mechanisms. Toll-like receptor (TLR) family plays an important role in the defense through recognizing bacterial pathogen associated molecular patterns (PAMPs). In this study, the physiological function of food products has investigated the immunoregulatory effects of immunobiotic lactic acid bacteria (LAB) via TLRs. Studies in swine, which is expected as a human model, have been examined intestinal immunoregulation by the immunobiotic LAB. Our research has now demonstrated regulation of intestinal immunity mediated by TLRs in the gut. On the basis of this study, efforts have also been made to develop a molecular immunoassay system for immuobiotic LAB and find novel immunostimulatory DNA sequences from imunobiotics. In vitro and in vivo study demonstrated an anti-allergic activity of immunostimulatory DNA sequences from imunobiotics. The findings in this project may provide impetus to further delineate the activation mechanism of the innate immune response with immunostimulatory DNA. In addition, identification of immunoregulatory factors from LAB, and better understanding of intestinal immune regulation through cytokine networks hold promise in basic research of food immunology and development of "immunobiotic foods" to prevent allergic disease.

  43. ヒト血液型ヨーグルトのプロバイオティック乳酸菌による構築

    齋藤 忠夫, 北澤 春樹, 西村 順子

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 萌芽研究

    Institution: 東北大学

    2002 - 2003

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    [目的]近年、ヒト腸管内で定着して安定的に増殖することにより、整腸作用、発ガン予防、コレステロー低減作用、免疫賦活化作用など、宿主に対して有益な保健健康効果を示す生きた微生物をプロバイオティクスと呼んでいる。一方、ヒト腸管を被覆している粘液層は腸ムチンと呼ばれる糖タンパク質で出来ており、近年ヒト大腸ムチンの糖鎖構造が血液型により異なることが報告された。プロバイオティック乳酸菌の多くは、この腸ムチンに結合する糖鎖を認識し、結合することで、腸管定住性を獲得しているものと推定される。本研究は、ヒトABO式血液型に応じて、腸ムチン糖鎖結合性の高い腸管系乳酸菌によるヨーグルトを創製するという全く新しい着想に基づいたものであり、将来の個人レベルに対応したオーダーメイドヨーグルトの開発を目指すことを目的としている。 [方法]実際にヒトの乳児から高齢者に至るまでのボランティアーより糞便を集め、そこから選択培地を用いて、乳酸菌を単離を試みた。単離菌の菌種同定は、生化学性状試験に加えて16sRNAの相同性試験およびビオメリュー(社)の糖資化性試験キットを用いて菌の同定を行った。ついで、市販のA抗原プローブをセンサーチップにリガンドとして結合させ、表面プラズモン共鳴を原理とするBIACOREを用いて、菌体をアナライトとして流した。洗浄後もレゾナンスユニット値が減少しないものを、相互作用有りと判定し、その結合性はユニット値で相互比較した。同様に、ヒト大腸より調製したA型大腸ムチンをセンサーチップ上に固定し、菌体を流して相互作用の有無を検討した。結合性のあった乳酸菌の菌体表層から表層タンパク質を調製し、付着性に関与するタンパク質成分を特定し、そのクローニングを試みた。 [結果]乳児から高齢者からの糞便より、240株の乳酸菌を得た。それらの、菌種の同定も行った。また、これらの菌をBIACORE解析を行った。その結果、A型抗原を認識する乳酸菌が確かに存在することが確認された。また、同様にヒトA型大腸ムチンに結合する菌株は39菌株あった。それらの菌体表層タンパク質のSDS-PAGEより標的タンパク質を決め、そのN-末端配列情報からクローニングを行った。約600bpを読みとったが、まだ完全解明までには、すこし時間が必要である。しかし、完全読み取りによりA型糖鎖を認識するエピトープ活性ポケットの構造が明らかになると期待される。また、実際にこれらの菌で、胃酸耐性、胆汁酸耐性があり、ガス産生がなく、風味性の優れた乳酸菌を用いて、ヨーグルトを試作する予定であり、実際にボランティアーに対する投与実験を行う予定である。

  44. Antihypertensive peptides without no side effect such as dry vomiting from milk proteins and their application

    SAITO Tadao, KAWAI Yasushi, KITAZAWA Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2002 - 2003

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    The main purpose of this research is preparation of antihypertensive peptides without any side effects such as dry vomiting from milk proteins and their application for new functional foods and medicine. We constructed a new peptide library form commercial peptide products from DMV Company (Holland) which is very famous international company producing peptide of food additive grade. We isolated a tetra peptide : ALPM after hydrophobic-, ion-exchange chromatography and HPLC analysis. The peptide showed strong antihypertesivity by SHR (spontaneously hypertensive rats) and ACE inhibitory activities. The membrane expressing AT1 receptors were isolated from rat lungs. We tested the competitive inhibitory analysis with ALPM and I125labeled-angiotesin peptide II for the binding to AT1 receptor of the membrane. We first confirmed the inhibitory activity in ALPM and proposed the future application for the food or medicine.

  45. Oral vaccine from daily lactic acid bacteria! -Development of new vaccine adjuvants-

    KITAZAWA Haruki, KAWAI Yasushi, SAITO Tadao

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2001 - 2003

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    Domestic animals are very important for food production. However, it becomes very severe problem that they have chronic intestinal diseases resulted in loss of food production and overadministration of antibiotics. In this study, the final goal is development of a novel oral vaccine adjuvant by using dairy lactic and bacterial DNA. In order to go ahead to the final goal, we first tried to find the active DNA motifs from lactic and bacteria (LAB) and develop a new immunoassay system with swine TLR9 transfectant and finally elucidate the mechanisms of the immunostimulation by the LAB DNA in the gut. We found several immunostimulatory DNA motifs including a novel one from the LAB. We cloned Toll-like receptor 9 (TLR9) from swine peyer's patch, which is expected for human model, and successfully developed a swine TLR9 transfectant. The transfectant was useful for the evaluation of active DNA from the LAB. The DNA motifs augmented an induction of Th1 type cytokine (IL-6, IL-12, IFNγ) mRNA in peyer's patches. The swine TLR9 gene was preferentially expressed peyer's patches (Pps) and mesenteric lymph nodes (MLNs), of which their degrees were approximately three times higher than that of spleens but weak in the other tissues. We firstly showed that high express (TLR9^+) cells were formed in Pps and MLNs. In addition, TLR9^+ cells existed not only in immune cells such as dendritic cells and B cells but also in membranous cells (M cells), belonging to follicle-associated epithelia (FAE) in Pps. These results suggest that Pps and MLNs provide the host defense with the ability to respond to a variety of bioactive oligonucleotides (ODNs) from bacteria at a conductive site of initial immune responses. From these results, immunostimulatory DNA motif from the LAB exerted the cytokine induction in the gut via TLR9 suggesting that the LAB DNA is a good candidate of an oral vaccine adjuvant.

  46. Preparation and application of milk oligosaccharides with anti-influenza virus activity

    SAITO Tadao, KAWAI Yasushi, KITAZAWA Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2001 - 2002

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    Bovine milk, especially in the colostral period, contains a group of milk oligosaccharides as free state. Their several biological activities such as inhibition of bacterial infection and neutralization of toxin in infant intestine have been reported. We have first confirmed the existence of 3'-sialyltactose (SL) lactone in ovine milk. We also isolated 3'-SL lactone from bovine colostrums. One of the aim of this research was the mass preparation of biological sugars such as 3'-SL and its lactone from cheese whey or bovine colostrums. In 2001, we have successfully prepared 3'-SL lactone from cheese whey by dehydration with glacial acetic acid in the high yield. in 2002, we have first clarified the inhibition of hydrolyzing activity by lactonization of 3'-SL by several sialydases. Especially, the hydrolysis of 3'-SL lactone was inhibited by sialydase from human intestine, In the liquid state in infant formula, the decrease was not so big within one day after preparation. We proposed the new type of infant milk with addition of 3'-SL lactone as anti infects ional milk products.

  47. Basic study on the development of "Bio-Defence Foods" by DNA motifs from dairy lactic acid bacteria

    KITAZAWA Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2001 - 2002

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    Fermented milks and their related dairy lactic acid bacterla have long been thought to be of value for health maintenance. Recently, corroborative experiments on the physiological functions of dairy lactic acid bacteria (LAB), especially the probiotic LAB, and their derivatives have been carried out. A great interest has been focused on biological functions such as immunomodulations. In our recent study, we have been particularly focusing on the DNA from LAB as one of the immunomoduratory factors in the LAB. The present study was conducted to elucidate the cytokine induction by the DNA in the gut. After stimulation of swine peyer's patch and mesenteric lymph node wlth DNA motifs from the LAB, induction of cytokine mRNA was estimated by real time PCR method. In addition, a novel function of L gasseri was investigated. The DNA motifs augmented induction of TH1 type cytokine (IL-6, IL-12, IFNy) mRNA in peyer's patches. The macrophage clemotaxis induced by L gasseri JCM1131^T culture supematants, which the chemotactic factor was designated as "Gasserokine", was discovered to be a new biological function exerted by probiotic lactic acid bacteria. Therefore, the activity is expected to be used for one of the functional parameters in the immunomodulating properties of probiotic lactic acid bacteria. This study demonstrated that immunostimulatory DNA motif from the LAB exerted the cytokine induction in the gut and proposed that the LAB is a good candidate of a starter culture for the production of new functional foods, "Bio-Defense Foods".

  48. The production of a new selection system for probiotic lactic acid bacteria adhering to animal intestines and its application

    SAITO Tadao, KAWAI Yasushi, KITAZAWA Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2000 - 2001

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    A new selection method by using BIACORE 1000 (Pharmacia) was first developed for the mass screening for lactic acid bacteria which strongly adhere to animal intestine. For the analysis of chicken intestine, chicken intestinal mucin (CIM) was coated to the sensor chip type 5 as ligand and investigated to several probiotic lactic acid bacteria which were isolated form chicken intestine as analyte. The adhesion was evaluated by resonance unit value (RU). Several bacteria were successfully selected by this method. For the analysis of human intestine, two types of commercial biotinilated polymer probe (blood type A and B) and human colon mucin (HCM) were used for ligand. Several probiotic bacteria were also successfully isolated. One lectin in the surface layer protein of Lactobacillus gasseri LA2 which was confirmed to combine to HCM was successfully cloned and clarified the nucleotide and amino acid sequence. We demonstrated the utilization of new selected bacteria for animal health by supplementing in food as probiotic bacteria in future.

  49. Regulation of intestinal immune networks by the DNA motifs from probiotics.

    KITAZAWA Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    1999 - 2000

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    A great interest has increased concerning the therapeutic and preventive effects of yogurt against several diseases. Lactobacillus delbrueckii ssp. bulgaricus (L.bulgaricus) and Streptococcus thermophilus (S.thermophilus), which are dairy lactic acid bacteria (LAB), has been commonly used in yogurt production in the world. In our recent study, we have been particularly focusing on the DNA from yogurt starter cultures as one of the immunomoduratory factors in the LAB.The present study was conducted to elucidate the immunomoduratory functions of the DNA in the gut. The DNA from L.bulgaricus and S.thermophilus significantly stimulated mitogenic responses to murine peyer's patch cells and induced CD69 on the cells. The active DNA was cloned and the DNA motif, looks like CpG motif, was found in L.bulgaricus NIAI B6. L.bulgaricus NIAI B6 was passed through the M cells and digested by macrophage/dendritic cells result in the stimulation of immune cells by the DNA motif. The binding and ingestion of the DNA motif were demonstrated in peyer's patch cells. The DNA motif augmented induction of Th1 type cytokine (IL-7, IL-12, IL-18, IFNγ) mRNA in peyer's patches. Since swine will be valuable as a human model, swine IL-7 cDNA was isolated from neonatal intestinal epithelium by the RACE methods with designated primers based on the conserved sequences of the other mammalian IL-7. Cytokine producing cells induced by the DNA motif were detected in several immune cells such as B, NK, NKT and Dendritic cells. This study demonstrated that mucosal immunostimulatory DNA motif exist in L.bulgaricus NIAI B6 and proposed that the microorganism is a good candidate of a starter culture for the production of new functional foods, "Bio-Defense Foods".

  50. Chemical and molecular biological studies on the bacteriocins produced by probiotic lactic acid bacteria.

    ITOH Takatoshi, KAWAI Yasushi, KITAZAWA Haruki, SAITO Tadao, UEMURA Junko

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B).

    Institution: Tohoku University

    1998 - 2000

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    The intake of fermented milk containing lactic acid bacteria isolated from human intestine may have beneficial effects on human health, as the bacteria survive in the gastrointestinal tract and have physiological functions as probiotics. Bacteriocins are antimicrobial peptides that act mainly against related bacterial species, and these components may be important in preventing the growth of harmful bacteria in the human intestine. Bacteriocin produced from Lactobacillus gasseri LA39 that was isolated from human intestine was analyzed with chemical sequence by chemical and gene cloning technique. The bacteriocin (Gassericin A) was a newly found cyclic bacteria which was bound at the N-and C-terminal ends. Another bacteriocin produced from Lactobacillus reuteri LA6 (Reutericin 6) isolated from the same human intestine was revealed to have same cyclic structure as Gassericin A.The slight difference was observed in the mode of action between two bacteriocins against the same reference bacteria. This is due to possibly slight differences in the steric structure. Other L.gasseri SBT2055 isolated from human intestine produced two kinds of bacteriocins. The first was the highly homologous in structure with Lactacin F.The sequences of the second bacteriocin is still unclear. Growth of L.gasseri SBT2055 in milk is poor but co-culture with Streptococcus thermophilus, the major strain used for yogurt making, accerelated the growth of L.gasseri in milk accompanying satisfactory production of bacteriocin. This suggests that the production of probiotic yogurt containing bacteriocin becomes feasible by this way.

  51. Development of whey beverage containing antihypertensive peptides and fermentated with lactic acid bacteria originated from human intestune.

    ITOH Takatoshi, UEMURA Junko, KAWAI Yasushi, KITAZAWA Haruki, SAITO Tadao

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    1997 - 1998

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    Cheese whey beverage containing antihypertensive peptides and fermented with lactic acid bacteria originated from human intestine was developed. Cheese whey proteins were hydrolyzed with pepsin, trypsin, chymotrypsin, proteinase K, actinase E, thermolysin and papain, then evaluated on inhibitory activity against angiotensin converting enzyme (ACE). Strong inhibitory activity was generated by proteinase K and thermolysin digestion. The digests were assayed for changes in the blood pressure of spontaneously hypertensive rats (SHR) after gastric intubation. The active peptides were chromatographically isolated from the protease K digest. Five peptides isolated were clarified amino acid sequences and their origin. Chemically synthesized peptides showed the antihypertensive activity against SHR.A tripeptide of Ile- Pro-Ala which was orally administered to SHR was recovered from lung of SHR.The results indicated that the peptide was absorbed from intestine, then move to lung and bind there with ACE.When cheese whey was digested with food additive grade proteases of actinase AS, proteinase A, kokulase P and denatyme Ap, the highest antihypertensive activity against SHR was observed in actinase AS digest. Growth of Lactobacillus acidophilus group lactic acid bacteria in cheese whey is usually poor but it was improved after digestion with proteases. Combination of protease digestion of cheese whey and fermentation with lactic acid bacteria originated from human intestine made possible development of the double functional whey beverage.

  52. Augmentation of cytokine production and mucosal immunity in gut-associated lymphoid tissue by the probiotics.

    KITAZAWA Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    1997 - 1998

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    The Lactobacillus acidophilus group, a member of gastrointestinal lactic acid bacteria (LAB) widely used in dairy foods, is expected to develop as a probiotic LAB because of the ability to stimulate host immune responses. We have evaluated and assessed the mitogenic responses of the LAB to lymphocytes as an incidence of biological activity among them. The present study was conducted to determine the mitogenic factors from the LAB, particularly focusing on mitogenic DNAs in the LAB.In 12 of 16 strains of Lactobacillus acidophilus group LAB, the DNA components significantly stimulated mitogenic responses to murine splenocytes. The mitogenic activity to lymphocytes from peyer's patches, a gut-associated lymphoid tissue, was also observed in some DNAs. The active DNA (DNA1131) of Lactobacillus gasseri JCM1131^T was selected to analyze the active components. Plasmid DNAs from the positive clones obtained by suctioning, using the pUG119 vector ligated with 1131DNA partially digested with Sau3Al, were purified by the precipitation method with polyethylene glycol. The plasmid DNA templates were amplified by using the polymerase chain reaction (POR) with primers for the multicloning site of the vector. In the 108 of the 321 positive colonies significant mitogenic activity was detected. The active nucleotides which stimulated mitogenic response were sequenced by a DNA sequencer MODEL 4000(Ll-COR, Lincoln, USA). Ten high homologous DNA motifs were found in the active DNA, but not in the non-active DNA.Two DNA motifs of chemically synthesized the DNA motifs induced a mitogenic response and was characterized as a B-cell specific mitogen. The binding of the active DNA clone and motifs to B lymphocytes were demonstrated by scatchard analysis and laser nicroscopy. The active DNA clone and motif augmented CD69/86 induction on B lymphocytes of spleen and peyer's patches. These also augmented induction of cytokine (IFNa. IFNy, TNRx) mRNA in splenocytes and peyer's patches. These findings indicated that a novel DNA motifs inducing lymphocyte activation triggering mitogenic response and , different from CpG motifs from E coli recently reported as a B-cell mitogen, exists in DNAs from L.Gasseri.

  53. Structure and function of polysaccharide produced by lactic acid bacteria aimed to add biological activity to yoghurt

    ITOH Takatoshi, UEMURA Junko, KITAZAWA Haruki, SAITO Tadao

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    1996 - 1997

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    The exocellular polysaccharide from Lactobacillus delbrueckii ssp.bulgaricus OLL 1073R-1 was fractionated into neutral and acidic polysaccharides by anion-exchange chromatography. Sugar analysis and ^1H NMR spectroscopy revealed that the neutral and acidic polysaccharides were composed of pentasaccharide repeating units containing galactose (Gal) and glucose (Glc) in the molar ratio of I.3 : I.0, and the apparent molecular weight were I.2 x 1O^6Da and 1.1 x 10^6Da, respectively. A slight amount (0.1%) of phosphorus was contained in the acidic polysaccharide. The acidic polysaccharide stimulated mitogenic responses of murine splenocytes and Peyer's patches but not of thymocytes. The optical concentration of the polysaccharide at the highest stimulation was 160 mug/ml. A significant increase of mitogenic activity was initiated at 24h, and the highest response was obtained after stimulation for 48h. Dephosphorylation by hydrofluoric acid degradation reduced the mitogenic activity in lymphocytes. The phosphopolysaccharide produced by Lactobacillus delbrueckii ssp.bulgaricus OLL1073R-1 is a potent B-cell-dependent mitogen in which the phosphate group acts as a trigger of the mitogenic induction. The effect of APS and NPS on macrophage (MPHI) functions was examined in vivo and in vitro in short-term studies. The phagocytic activity of peritoneal MPHI was significantly augmented by the intraperitoneal administration of APS,but not by NPS.The cytotoxic activity of thioglycolate-induced MPHI was significantly increased when it was treated with APS at a concentration of 100mug/ml for 6h, which activity was greater than that NPS treatment. These findings indicate the possibility that fermented food products made with L.bulgaricus OLL1073R-1 may be developed as special foods with biological functions.

  54. 「中止卵」からの新規成長因子の精製とその遺伝子解析

    北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 東北大学

    1996 - 1996

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    【目的】養鶏産業の種卵業において,孵化過程で増殖異常が認められている「中止卵」は,日本国内で年間約3億5千万個生じ,産業廃棄物として処理されている.これら中止卵の処分方法は,再利用も含め解決すべき深刻な問題となっている.そこで本研究では,中止卵の産業的高度有効利用の可能性と廃棄物問題の解決のための基礎的研究として,孵卵過程中の鶏卵からの新規細胞増殖因子の発見と,その化学的特性の解析を目的とした. 【方法】ブロイラー(東北チャンキ-類)の受精卵を用い,孵卵開始15日目の尿水(EWE)および20日目の残存卵黄(EYE)を採取した.脱脂,凍結乾燥後,水抽出成分をヘパリンアフィニティークロマトグラフィーに供し,ヘパリン結合性成分を得た.細胞増殖因子としての活性は,鶏胚より調製した線維芽細胞(CEF)に対する増殖活性として評価した.活性成分は,SDS-PAGE, Native-PAGEおよびHPLCの化学分析を行った後,N-末端アミノ酸配列を決定した. 【結果】EWEおよびEYEは,共にCEFに対して,対照に比べ,約200から300%の増殖活性を示すことを証明した。ヘパリン結合性成分(EWE-15HおよびEYE-20H)は,共に0.5から1.0MNaCl付近に溶出され,EWEあるいはEYE乾燥試料1g当たり,約36μg得た.EWE-15HおよびEYE-20Hは,CEFに対し細胞増殖活性を示したが,マウス胎児由来線維芽細胞に対しては増殖活性を示さなかったことから,これらの因子は,種特異的に活性を発現する可能性が示唆された.化学分析の結果,EWE-15HおよびEYE-20Hは,それぞれ分子量約18kDおよび33kDの単量体タンパクであることが判明した.EYE-20Hについては,N-末端より16残基のアミノ酸を決定し,ホモロジー検索の結果,本因子の新規性を確認した.さらに,PCR法により鶏胚cDNAライブラリー中に本因子の構造遺伝子の存在が確認できた.今後,本因子の構造遺伝子をクローニングすることにより,本因子の全容が解明でき,中止卵の産業的高度有効利用の可能性が開けるものと確信する.

  55. 多糖生産菌を用いた発酵乳の生物機能特性

    伊藤 敞敏, 北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 一般研究(C)

    Institution: 東北大学

    1994 - 1994

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    「概要」我々は粘質乳酸ヴィリ-のスターターの一つであるLact.cremoris KVS20が生産するリン酸化多糖(S-2)のリンパ球(Ly)・マクロファージ(MΦ)に対する種々の生物学的活性を明らかにしてきた.本研究では、S-2が示すBリンパ球幼若化活性の誘導機序ならびにサイトカイン誘起能について,フローサイトメトリー(FCM)およびReverse Transcription-Polymerease Chain Reaction(RT-PCR)法を用いて細胞および分子レベルで解析し,以下の見知を得た. 「結果」1.Bリンパ球幼若化活性誘導の機序:幼若化活性は幼若化物質が直接リンパ球に結合・刺激し,また活性の発現にはMΦが関与することが知られたいる.S-2の幼若化活性は,脾細胞から付着性MΦを除去した後でも認められ,S-2は直接Bリンパ球と結合すること,活性の発現にはMΦの関与は少ないことが判明した.さらにFCMの結果,S-2刺激によりS期細胞はB細胞幼若化物質として知られるリポ多糖(LPS)刺激により早く出現することが判明した.しかしながら,S期細胞はLPSほど数多く誘導されなかった.このことから,S-2によるBリンパ球幼若化の誘導は,反応開始後速やかに発現され,その活性はLPSと異なることが明らかとなった. 2.サイトカイン産生の誘導:S-2のサイトカイン誘起能を生物学的活性測定法およびRT-PCR法を用い詳細に検討した.S-2(50μg/ml)で刺激した脾臓MΦ(SP-MΦ)培養上清中で約80IU/mlのIFNが誘起された.一方,腹腔MΦ(TG-MΦ),線維芽細胞およびLyからのIFN誘起はわずかであった.RT-PCR法により,S-2刺激SP-MΦにおいてIFNγ-mRNAの発現が認められた.さらに,S-2刺激によりTG-MΦおよびSP-MΦにおいてIL-1α-mRNAの発現が認められた.さらに,これらの結果,S-2はmΦの培養系でIFNγ,IL-1αのmRNAの転写を促進し,サイトカイン産生を増強することが証明された. 以上の結果より,Lact.cremoris KVS20が生産するリン酸化多糖の食品としての三次機能が免疫担当細胞に生物活性としてより詳細に把握された.このことは,Lact cremoris KVS20が生産するリン酸化多糖の食品としての三次機能が免疫担当細胞に対する生物活性としてより詳細に把握された.このことは,Lact.cremoris KVS20を含む発酵乳製品を機能性食品として位置づける基礎を築くものと考えられる.

  56. アシドフィラスグループ乳酸菌が関与する腸管免疫のサイトカインネットワークの解析

    北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 東北大学

    1994 - 1994

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    「概要」 近年,食品成分の生物学的活性の解析が行われるようになり,食品の新たな機能性が解明されつつある.私は,腸内細菌で乳業用乳酸菌として広く利用されているアシドフラス菌が腸管関連リンパ組織(GALT)の一つであるパイエル板細胞を刺激し,サイトカイン(IFNα)を誘起することを見い出した.このことは,アシドフィラス菌が腸管免疫,特にサイトカインネットワークの刺激・増強に関与することを強く示唆するものである.本研究では,腸管免疫に深く関与するサイトカインがアシドフィラス菌の刺激により,GALTの細胞で合成されることを追求し,IL-6に関する以下の知見を得た. 「結果」 GALTより,上皮間リンパ球(IEL),粘膜固有層細胞(LPC)およびパイエル板細胞(PPC)をそれぞれ調製し,アシドフィラス菌(IFNαおよびIL-1α誘導活性を示したL.gasseri20243^T株,5813株)で24時間刺激した.サイトカイン(IL-2,4,6)の誘導活性は,刺激細胞より総RNAを調製し,RT-PCR法により評価した.その結果,アシドフィラス菌刺激によりGALTの細胞よりIL-6の顕著な誘導活性が認められた.具体的には,PPCにおいて,その活性はL.gasseri20243^T刺激で対照の約5倍,L.gasseri5813で約2倍であった.LPCでは,対照では誘導が全く認められなかったのに対し,アシドフィラス菌刺激ではその活性が認められた.しかしながら,IELおいてはいずれの刺激でもIL-6の誘導は認められなかった.さらに,インターセルを用いたPPCとIELあるいはLPCとIELとの共培養系においてIL-6の誘導活性を見たところ,PPCおよびLPCにおける誘導活性は,それぞれの細胞の単独培養系の時より増強された.しかしながら,ここでもIELにおけるIL-6誘導は認められなかった.以上の結果より,アシドフィラス菌(L.gasseri20243^TおよびL.gasseri5813)によりGALTの細胞が刺激され細胞相互的にIL-6が誘導あるいはそれぞれが増強されることが明らかとなった.IL-6は抗体産生の誘導やT細胞の増殖あるいは細胞障害性T細胞への分化誘導等,感染防御において重要な役割を持つので,アシドフィラス菌が腸管において感染防御に関わる腸管免疫をサイトカインネットワークを介して増強する可能性が大いに期待できる.

  57. L.acidophilusグループ乳酸菌によるサイトカイン産生遺伝子の発現と制御

    北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 東北大学

    1993 - 1993

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    「目的」 我々はこれまでの研究で,乳業用乳酸菌であるL.acidophilusグループ乳酸菌がマクロファージ(Mphi)を刺激し,インターフェロン(IFN)誘起することを明らかにした.IFNを含むサイトカインは免疫賦活作用および生体防御に深く係わる因子である.従って,乳酸菌によるサイトカイン産生を究明することは,生体調節および防御因子を含む機能性食品として,乳酸菌依存性の乳製品を開発する上で重要である. 「方法」 C57BL/6マウスより腹腔Mphi(TG-Mphi),脾臓Mphi(SP-Mphi),パイエル板細胞(PP-Ad cell)を調製し,in vitroにおいて,L.gasseri(13菌株)で刺激し,その培養上清のIFNおよびIL-1活性をプラーク形成抑制法,co-stimulatorアッセイ法でそれぞれ測定した.IFNおよびIL-1mRNAの発現量は,RT-PCR法により検討した.total RNAはAGPC法により調製した. 「結果」 L.gasseri DSM20243^T,JCM1022株で刺激(200mug/ml)したTG-Mphiの培養上清中で約11IU/mlのIFNが誘起これた.DSM20243^T株刺激(100mug/ml)により,SP-Mphi培養上清中で最も高いIFN力価(約47IU/ml)が認められた.一方IL-1は,TG-,SP-MphiをJCM5813株で刺激した培養上清で最も高い活性が認められた.PCRの結果,DSM20243^T株刺激SP-MphiおよびPP-Ad cellにおいてIFNalpha mRNAの発現が認められ,JCM5813株刺激SP-MphiにおいてIL-1alpha mRNAの発現が確認された.さらに,アクチノマイシンDおよびシクロヘキシミドの添加試験により,IFNalpha mRNAは菌体刺激後30分以内に合成され始め,IFNalphaの合成・分泌は刺激後3〜6時間以内に開始し,60〜70時間で急激に増強されることが判明した.以上の結果より,L.gasseriは,Mphiの培養系で,IFNalpha,IL-1alpha mRNAの転写を促進させる機能を有することが証明され,L.gasseriを含む乳製品の機能性食品としての位置付けが可能であると考えられた。

  58. 乳用乳酸菌菌体外多糖によるリンホカインの産生とその調節

    北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 東北大学

    1992 - 1992

  59. Studies on immunostimulating ability and active components in lactic acid bacteria used to fermented milk

    ITOH Takatoshi, SUGAWARA Hiroshi, KITAZAWA Haruki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for General Scientific Research (C)

    Institution: TOHOKU UNIVERSITY

    1991 - 1992

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    The cell wall components of L. delbrueckii subsp. bulgaricus and L.acidophilus were characterized after hydrolysis with lysozyme and N-acetylneuraminidase. The difference between two species were elucidated. In order to evaluate the biological activity induced by L. acidophilus group lactic acid bacteria which can grow in intestinal tract, induction of interferon by L. acidophilus and L. gasseri was investigated in murine peritoneal macrophage cultures. Four strains in 9 L. acidophilus strains induced interferon in macrophage cultures. Such activation effect by L. gasseri was also formed on 5 strains in 13 strains. Induced interferons were characterized as alpha/beta by treatment with anti-interferon serum. The biological activities of whole cell and hydrolyzed cell component of 9 L. acidophilus strains were evaluated by mitogenic activities using murine spleen cells. Higher activity was observed in only one whole cell, however, the cell wall components from 6 strains showed significantly higher activity. The cell wall component from one strain which showed the highest value was fractionated by ion-exchange chromatography, followed by measurement of the activity and chemical analysis. The activity was mainly found in the bound fractions and it was confirmed to be specific on B-cell of murine spleen cells. Carbohydrate moiety of the active fractions was composed of glucose, N-acetylglucosamine, N-acetylmuramic acid and glycerol. Higher active fraction tends to contain higher N-acetylglucosamine in the ratio against glucose. The results indicate that some strains of L. acidophilus group can act as an immunostimulators in the intestinal tract when dairy products containing such lactic acid bacteria was ingested.

  60. 乳用乳酸球菌が生産する粘質物の抗腫瘍活性の機序解明

    北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 東北大学

    1990 - 1990

  61. 乳業用乳酸球菌の生産する菌体外粘質物の免疫調節作用

    北澤 春樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 東北大学

    1989 - 1989

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Works 27

  1. 2014年度日本学術振興会科学研究費補助金基盤B研究実績報告書「イムノバイオティクスの抗炎症性腸管細胞イントラネットの分子制御機構とその応用戦略」

    2015/04 -

    Type: Other

  2. 2014年度日本学術振興会科学研究費補助金挑戦的萌研究実績報告書「肥満制御と産肉性向上のダブル社会貢献を可能にするイムノバイオティクスの評価系構築」

    2015/04 -

    Type: Other

  3. 2013年度日本学術振興会科学研究費補助金基盤B研究実績報告書「イムノバイオティクスの抗炎症性腸管細胞イントラネットの分子制御機構とその応用戦略」

    2014/04 -

    Type: Other

  4. Advanced utilization of fermented food by-products: Development of Eco-immuno feeds"supporting health and environment

    2013/05/15 -

    Type: Other

  5. 平成21年度日本学術振興会科学研究費補助金挑戦的萌芽研究実績報告書「パターン認識受容体発現細胞ライブラリーによるプロバイオティクス免疫評価基盤の構築」

    2010/03 -

    Type: Other

  6. Basic studies on the prevention and improvement of intestinal bowel disease by immunobiotics and their advanced application

    2009/05/11 -

    Type: Other

  7. 平成20年度日本学術振興会科学研究費補助金挑戦的萌芽研究実績報告書「パターン認識受容体発現細胞ライブラリーによるプロバイオティクス免疫評価基盤の構築」

    2009/03 -

    Type: Other

  8. 平成15〜17年度日本学術振興会科学研究費補助金基盤研究B最終報告書「乳酸菌DNAモチーフによるアレルギー発症防御機構の解明と 戦略的予防食品の開発」

    2006/03 -

    Type: Other

  9. 平成13〜15年度文部科学省科学研究費補助金基盤研究B(展開)最終報告書「乳業用乳酸菌から“食べるワクチン”を!ー新世代経口ワクチン・アジュバントの開発ー」

    2004/03 -

    Type: Other

  10. 平成13年度科学研究費補助金(基盤研究C)実績報告書「乳業用乳酸菌由来DNAモチーフによる“生体防御食品”の創製に関する基礎的研究」

    2003/03 -

    Type: Other

  11. 平成13年度文部科学省科学研究費補助金基盤研究B(展開)実績報告書「乳業用乳酸菌から“食べるワクチン”を!ー新世代経口ワクチン・アジュバントの開発ー」

    2003/03 -

    Type: Other

  12. 平成13年度科学研究費補助金(基盤研究C)実績報告書「乳業用乳酸菌由来DNAモチーフによる“生体防御食品”の創製に関する基礎的研究」

    2002/03 -

    Type: Other

  13. 平成13年度文部科学省科学研究費補助金基盤研究B(展開)実績報告書「乳業用乳酸菌から“食べるワクチン”を!ー新世代経口ワクチン・アジュバントの開発ー」

    2002/03 -

    Type: Other

  14. 平成11年度上原記念生命科学財団研究奨励金報告書「プロバイオティック乳酸菌を用いた"生体防御食品(Bio-Defence Food)"の開発に関する基礎的研究」

    2001/11 -

    Type: Other

  15. 平成11年度科学研究費補助金(基盤研究C)実績報告書「プロバイオティクス由来DNAモチーフによる感染防御系腸管免疫ネットワークの制御」

    2001/03 -

    Type: Other

  16. 平成11年度科学研究費補助金(基盤研究C)実績報告書「プロバイオティクス由来DNAモチーフによる感染防御系腸管免疫ネットワークの制御」

    2000/03 -

    Type: Other

  17. 平成9年度科学研究費補助金(基盤研究C)実績報告書「プロバイオティクスによる腸管リンパ組織のサイトカイン誘導と腸管免疫賦活機序の解析」

    1999/03 -

    Type: Other

  18. 平成9年度科学研究費補助金(基盤研究C)実績報告書「プロバイオティクスによる腸管リンパ組織のサイトカイン誘導と腸管免疫賦活機序の解析」

    1998/03 -

    Type: Other

  19. 平成8年度科学研究費補助金(奨励研究A)実績報告書「中止卵からの新規成長因子の精製とその遺伝子触析」

    1997/03 -

    Type: Other

  20. 平成6年度科学研究費補助金(奨励研究A)実績報告書「アシドフィラスグループ乳酸菌が関与する腸管免疫のサイトカインネットワークの解析

    1995/03 -

    Type: Other

  21. 平成5年度科学研究費補助金(奨励研究A)実績報告書「L.acidophilusグループ乳酸菌によるサイトカイン産生遺伝子の発現と制御」

    1994/03 -

    Type: Other

  22. 森永奉仕会研究奨励金報告書「莢膜性粘質物生産性L.lactis ssp.cremorisが生産するリン酸化多糖のリンパ球機能亢進」

    1994/03 -

    Type: Other

  23. 平成4年度科学研究費補助金(奨励研究A)実績報告書「乳用乳酸菌菌体外多糖によるリンホカインの産生とその調節」

    1993/03 -

    Type: Other

  24. 森永奉仕会研究奨励金報告書「粘質物産生乳用乳酸菌の免疫調節作用」

    1993/03 -

    Type: Other

  25. 森永奉仕会研究報奨金報告書「粘質発酵乳のもつ生理効果とその有効成分の解明」

    1992/03 -

    Type: Other

  26. 平成2年度科学研究費補助金(奨励研究A)実績報告書「乳用乳酸球菌が生産する粘質物の抗腫瘍活性の機序解明」

    1991/03 -

    Type: Other

  27. 平成1年度科学研究費補助金(奨励研究A)実績報告書「乳業用乳酸球菌の生産する菌体外粘質物の免疫調節作用」

    1990/03 -

    Type: Other

Show all ︎Show first 5

Social Activities 30

  1. 弘前大学農学生命科学部 非常勤講師

    2014/04/01 - 2015/03/31

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    「食品保健機能学」の授業

  2. 弘前大学農学生命科学部 非常勤講師

    2013/04/01 - 2014/03/31

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    「食品保健機能学」の授業

  3. 弘前大学農学生命科学部 非常勤講師

    2012/04/01 - 2013/03/31

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    「食品保健機能学」の授業

  4. 弘前大学農学生命科学部 非常勤講師

    2010/04/01 - 2011/03/31

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    「食品保健機能学」の授業

  5. サイエンス・ダイアログプログラム

    2010/11/13 - 2010/11/14

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    高崎高校において、若手外国人研究者(JSPSフェロー)による英語での講義を行い、研究への感心および国際理解を深めてもらった。本事業において、JSPSフェローに同行し、フェローの講義内容について高校生に対して補足説明を行った。また、高校生によるまとめの発表について、講評を行い、科学に対する理解を深めてもらった。

  6. 弘前大学農学生命科学部 非常勤講師

    2009/04/01 - 2010/03/31

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    「生体防御システム学」の授業

  7. 弘前大学農学生命科学部 非常勤講師

    2008/04/08 - 2009/03/31

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    「生体防御システム学」の授業

  8. 弘前大学農学生命科学部 非常勤講師

    2007/04/09 - 2007/09/30

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    「生体防御システム学」の授業

  9. 北海道大学大学院農学研究科 非常勤講師

    2004/10/21 - 2004/10/22

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    「栄養化学特論」の授業,留学生英語授業および公開講演

  10. 高校研究室訪問(福島県立磐城高等学校)

    2015/04/23 -

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    大学の模擬授業を体験し、大学研究の具体的な内容に直接触れながら、学問領域の興味・関心を深め、自己の将来(ライフワーク)を見据える機会を提供する。

  11. 高校研究室訪問(福島県立磐城高等学校)

    2014/04 -

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    大学の模擬授業を体験し、大学研究の具体的な内容に直接触れながら、学問領域の興味・関心を深め、自己の将来(ライフワーク)を見据える機会を提供する。

  12. 経口用ナノカプセル開発 「アレルギー治すオリゴ核酸を酸から防御」

    2014/01/10 -

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    博士後期指導学生だった下里剛士博士(現 信州大学准教授)の研究が、新聞の科学記事に掲載され、その業績に対するコメントが紹介された。

  13. 栄養士会主催 「セミナー牛乳を科学する」

    2013/11/09 -

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    平成25年度の栄養士会主催の「セミナー牛乳を科学する」の中で、11月9日に山形会場で、山形県内の栄養士の先生を中心に市民や学生の方々が集まり、「健康生活を支えるミルクの神秘と進化」と題する基調講演を行った。

  14. 「豆乳グルト」に新たな機能性、抗炎症作用が明らかにーマルサンアイ

    2013/10/29 -

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    マルサンアイ(株)との共同研究成果が大豆業界新聞の科学記事に掲載された。

  15. 鶴翔アカデメイア(山形県立鶴岡南高等学校)

    2013/08/23 -

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    1,2年生を対象とした模擬講義を2回担当する。模擬講義を通して、生徒自身の学問に対する興味関心を高め、学問に対する態度と意欲を養う。また、進路について考える機会とし、進路決定に役立てる。

  16. 大学模擬講義(青森県立八戸高等学校)

    2013/08/23 -

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    1,2年生を対象とした模擬講義を担当する。模擬講義を通して、生徒自身の進路選択の場を広げる。

  17. 高校研究室訪問(福島県立磐城高等学校)

    2013/04 -

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    大学の模擬授業を体験し、大学研究の具体的な内容に直接触れながら、学問領域の興味・関心を深め、自己の将来(ライフワーク)を見据える機会を提供する。

  18. 学部学科研究会講義(長野県長野高等学校)

    2012/09/15 -

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    2年生を対象とした「学部学科研究会」で、講義を2回に分けて担当する。本研究会は、大学学部の研究内容の講義を聞き、生徒自身の進路選択に資することを目的として、毎年2年生を対象に行われている。

  19. 高校研究室訪問(福島県立磐城高等学校)

    2012/04/20 -

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    大学の模擬授業を体験し、大学研究の具体的な内容に直接触れながら、学問領域の興味・関心を深め、自己の将来(ライフワーク)を見据える機会を提供する。

  20. 栄養士会主催 「セミナー牛乳を科学する」

    2012/03/03 -

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    平成23年度の栄養士会主催の「セミナー牛乳を科学する」の中で、3月3日に秋田会場で、秋田県内の栄養士の先生を中心に市民や学生の方々が集まり、「健康生活を支える乳・乳製品の基礎と将来展望」と題する基調講演を行った。

  21. 大学模擬授業(宮城県泉高等学校)

    2011/11/16 -

    More details Close

    大学の模擬授業により、大学研究の具体的な内容に直接触れながら、学問領域の興味・関心を深めることにより、自己の将来(ライフワーク)を見据える機会を提供する。

  22. 一日総合大学(山形県立山形東高等学校)

    2011/10/04 -

    More details Close

    大学の模擬授業により、大学研究の具体的な内容に直接触れながら、学問領域の興味・関心を深めることにより、自己の将来(ライフワーク)を見据える機会を提供する。

  23. 乳酸菌の塩基配列特定 食品や医薬品への応用期待

    2011/06/06 -

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    博士後期指導学生だった下里剛士博士(現 信州大学助教)の博士論文の業績が、新聞の科学記事に掲載され、その業績に対するコメントが紹介された。

  24. 栄養士会主催 「セミナー牛乳を科学する」

    2010/07/16 -

    More details Close

    平成22年度の栄養士会主催の「セミナー牛乳を科学する」の中で、7月16日に栃木会場で、栃木県内の栄養士の先生を中心に市民や学生の方々が集まり、「長寿を支える牛乳の成分とその機能」と題する基調講演を行った。

  25. 栄養士会主催 「セミナー牛乳を科学する」

    2010/01/23 -

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    平成21年度の栄養士会主催の「セミナー牛乳を科学する」は、全国9都市で開催され、1月23日に盛岡会場で、岩手県内の栄養士の先生を中心に市民や学生の方々が集まり、「健康を支える乳・乳製品-科学的根拠の重要性-」と題する基調講演を行った。

  26. 宮城大学食産業学部 講師

    2008/12/17 -

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    「発酵食品・醸造学」授業の一部担当 「食品免疫学を基礎とする機能性乳酸菌の応用戦略」

  27. 東北大齋藤教授ら,乳酸菌のTLR刺激DNA配列を森永BB536,タカナシLGG,明治LG21で確認

    2005/11/15 -

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    東北大農学研究科の齋藤忠夫教授らは,自然免疫分子であるToll様受容体(TLR)を刺激する乳酸菌のオリゴDNAモチーフとして,これまでに森永乳業のビフィズス菌BB536,タカナシ乳業のLGG,明治乳業のLG21について確認したことを明らかにした.2005年11月9日から10日に都内で開かれた日本食品免疫学会第1回学術大会で発表した.

  28. 森永乳業,BB536菌の抗アレルギー活性本体を発表

    2005/03/30 -

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    森永乳業は東北大との共同研究により,「ビフィダスヨーグルト」などに使用しているBifidobacterium longum BB536のゲノム由来の抗アレルギー活性を持つDNA断片を明らかにした.成果は,2005年3月28日から札幌市で開催される農芸化学会でポスター発表した.

  29. 東北大,ブタのTLR単離,ヒトモデルとしての免疫活性化因子スクリーニングに活用」

    2003/04/14 -

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    ブタから自然免疫に関与していることが知られているToll-like receptorの遺伝子の単離に初めて成功した.成果は4月1日,神奈川県藤沢市で開催された日本農芸化学会2003年度大会で発表した.

  30. 東京大学大学院農学研究科 講師

    2000/07 -

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    大学院の授業を一部担当

Show all Show first 5

Other 11

  1. 食べるセロトニンの抗肥満作用機構解明とセロトニン高含有農産物の研究開発

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    経口摂取したセロトニンの抗肥満作用発現に関わる標的臓器およびセロトニンにより誘導される新規な生体内エネルギー代謝機構を明らかにし、食品としてのセロトニンの健康機能性を解明する。さらに、抗体法を用いて農業現場で測定可能な農産物セロトニン含有量の簡易測定法を開発し、ゲノム情報を利用してセロトニン高含有するトマトを開発する。

  2. 腸管上皮細胞におけるイムノバイオティクスの抗炎症性機構解明

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    潰瘍性大腸炎やクローン病に代表される炎症性腸疾患(IBD)は、年々激増し続けており難病疾患に指定されている。その主たる原因として、微生物のパターン認識受容体(PRR)を介する腸管上皮細胞の異常応答と腸管免疫機能低下が上げられ、Quality of Life (QOL)を著しく低下させることから大きな社会問題となっている。このQOLの向上のためには,腸管局所で上皮細胞異常と免疫機能低下を予防・改善する機能性食品や製剤の開発が求められている。 本研究では、これまでの我々の知見(項目5を参照)を基礎として、食生活面からのアプローチにより、炎症性腸疾患予防・改善を可能とする「イムノバイオティック食品」の開発基礎を築くため、腸管上皮細胞において抗炎症性を発揮するイムノバイオティクスの選抜と、PRRを介する抗炎症性機構について解明する。

  3. 植物性乳酸菌によるラッキョウ漬け多糖残渣の飼料化

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    【背景】 ラッキョウ漬けにおいて、乳酸菌発酵は、「旨み」を向上させることができるため、その製造工程にかかせないものとなっている。乳酸菌の中でも、Lactobacillus plantarum(いわゆる植物性乳酸菌)は、多糖生産能を有し、ラッキョウ漬けに優れた乳酸菌として選抜され、ラッキョウ製品の大手メーカーで使用されている。しかしながら、乳酸菌発酵後、ラッキョウの成形残渣および漬け込み発酵残渣は、未活用のまま廃棄されている。 我々は、以前より、乳酸菌および乳酸菌が生産する多糖が、ブタなどの産業動物の免疫能を高める可能性を見出している。このことは、ラッキョウ漬けの工程で大量に廃棄され、乳酸菌や多糖を多く含む上記発酵残渣が、ブタなどの免疫力を高め、減投薬につながる飼料として発展的に利用できる可能性を強く示唆する。さらに、発酵残渣には、アミノ酸をはじめ、肉質向上に有効な成分を多く含むことが予想され、その有効利用が期待される。 【目的】 本研究では、未利用資源としてのラッキョウ残渣および漬け込み発酵多糖残渣について、ブタやウシにおける免疫能を高め、成長を促進するとともに、肉質向上に寄与する飼料化の可能性を検討し、その応用開発を行う。 本年度は、まず、残渣の飼料化のための粉末化の条件検討を行い、ラッキョウ残渣および発酵多糖残渣のブタやウシにおける嗜好性の調査・検討を行うとともに、残渣の成分分析を行い、飼料開発のための安全性、免疫機能や肉質向上性との関連成分に関する基礎情報を得る。さらに、残渣に含まれる乳酸菌および多糖の免疫機能性について、ブタ由来の免疫担当細胞に対する各種免疫応答性を指標として検討し、実証試験につながる基礎を築く。

  4. 抗菌剤に頼らない「イムノバイオティック飼料添加物」の開発戦略

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    食資源として極めて重要な畜産動物は,哺乳および離乳期に腸管感染症に罹患し慢性化し易く,生産性低下予防と成長促進のために抗菌剤の大量使用を余儀なくされ,結果として薬剤耐性菌の発生といった二次的被害に対する消費者の不信感が高まった.さらに,畜産動物への抗菌剤使用規制が本格化したことから,抗生剤に頼らない畜産食品生産技術の開発が急務の課題となっている. 本研究は,世界に先駆けて樹立に成功した子豚腸管上皮細胞株(PIE細胞)および牛腸管上皮細胞株(BIE細胞)により,新規畜産動物腸管パイエル板モデル培養系を構築し,安全性が確認されている腸管免疫活性型乳酸菌「イムノバイオティクス」の選抜から,畜産動物の腸管免疫能を強化する,感染性下痢症予防に有効かつ的確な 「イムノバイオティック飼料添加物」の開発を目指す. 本研究の成果は,腸管感染症から畜産動物を守る新規な「イムノバイオティック飼料添加物」の実用化とその普及にもつながり,抗菌剤に頼らない畜産食品生産技術の飛躍的発展と,関連産業における波及効果が大いに期待できる.

  5. ブタ腸管上皮細胞株によるイムノバイオティック飼料の分子免疫評価基盤構築

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    我々は,細菌感染防御に重要なパターン認識受容体ファミリーの,ブタ腸管免疫系における発現の詳細と,腸管免疫機能性の乳酸菌(イムノバイオティクス)の活性発現との関連性について解明してきた.最近になって,子ブタ回腸から世界に先駆けて,腸管免疫系の最前線に位置するブタ腸管上皮細胞株(PIE細胞)の樹立に成功した.そこで,PIE細胞とこれまでの知見を融合することにより,パターン認識受容体を介する抗炎症性の的確なブタ腸管分子免疫評価系が構築でき,抗生剤に代わる新たなイムノバイオティクスの選抜から「イムノバイオティック飼料」の創製につながるものとして期待される.. 本研究は,世界に先駆けて樹立に成功した子豚腸管上皮細胞株(PIE細胞)および牛腸管上皮細胞株(BIE細胞)により,新規畜産動物腸管パイエル板モデル培養系を構築し,安全性が確認されている腸管免疫活性型乳酸菌「イムノバイオティクス」の選抜から,畜産動物の腸管免疫能を強化する,感染性下痢症予防に有効かつ的確な 「イムノバイオティック飼料添加物」の開発を目指す. 本研究の成果は,腸管感染症から畜産動物を守る新規な「イムノバイオティック飼料添加物」の実用化とその普及にもつながり,抗菌剤に頼らない畜産食品生産技術の飛躍的発展と,関連産業における波及効果が大いに期待できる.

  6. プロバイオティクスの分子免疫機能性評価システムの開発

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    超高齢化社会の到来により,免疫機能低下者の激増が予測されることから,医薬品とは別に,免疫機能性の健康食品をはじめ特定保健用食品(トクホ)の開発・認可の促進が必要となる.とりわけ,免疫機能性「トクホ」の誕生には,医薬品より安価で簡便に免疫機能性評価が可能なシステム構築が必要不可欠である.そこで,本研究では,齧歯類よりもヒトに近縁のブタをモデルとして,免疫機能性「トクホ」の公的認可のため,とくに,プロバイオティクスの分子免疫機能性評価システムを確立し,提案を行うことを目的とする.ブタは,ヒトとの相同性が齧歯類に比べ非常に高い他,インビトロから,インビボまで容易に評価することが可能である.したがって,得られた評価データは直接ヒトへの効果に反映でき,結果として,ヒト臨床試験の削減にもつながる評価系を確立できる.

  7. イムノバイオティック乳酸菌DNAによる“アレルギー予防食品”の創製に関する研究

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    【目的】 近年,乳酸菌が有する生物活性を基礎としたプロバイオティク製品などの機能性食品やサプリメントの開発が盛んに行われるようになり,世界中で一大市場を築くまでに至った.最近では,腸管免疫活性に特化したプロバイオティックスがイムノバイオティクスと定義され,その機能性食品もさらに発展することが期待されている.我々は,乳業用乳酸菌の細胞壁成分や染色体ゲノムDNAが腸管免疫調節を誘導することを発見し,特徴的なDNA配列を発見した.このことは,活性因子を有する乳業用乳酸菌が,細菌特異的パターンを認識する受容体であるToll-like receptor(TLR)を介して腸管免疫システムを制御し,疾病予防に寄与する可能性を強く示唆する.本研究は,これまでの知見を基礎とし,乳酸菌由来DNAのTLR9を介する腸管免疫活性評価系を構築し,“アレルギー予防食品”の創製を目指した,戦略的基礎研究を行うことを目的としている. 【結果と考察】 1. AT-オリゴヌクレオチドの免疫活性 AT-ODNがTLR9を介して免疫活性を示すことを検証するため,TLR9を強制発現させた動物細胞株を構築に成功した.本細胞株をAT-ODNで刺激するとTLR9を介する細胞内シグナル伝達系が活性化され,抗アレルギー性サイトカインが産生されることを発見した.以上の解析を通してAT-ODNがTLR9に認識され,抗アレルギー免疫応答を誘導する可能性が考えられた. 2.Toll-like receptor 9の腸管組織における局在性 TLR9の生体における局在性について全身の各組織と腸管の各部位における発現量を比較したところ,パイエル板と腸管膜リンパ節において最も強くTLR9が発現していることを発見した.このことから,TLR9がAT-ODNに対して認識性を持ち,腸管免疫系の活性化に寄与する可能性が十分に考えられ,TLR9をAT-ODNの免疫機能を解明する上で,最重要分子であることを世界に先駆けて提唱した. 3.乳酸菌DNAの免疫活性評価システムの構築 TLR9強制発現細胞株が免疫活性DNAのTLR9を介する①取り込み能,②細胞内シグナル伝達分子の転写活性,③サイトカイン産生量の測定の3段階で検証することで,様々なDNA配列から免疫活性の強い配列を選抜できるため免疫活性評価システムとして価値があり,その応用が期待できる.今後,抗アレルギー食品開発における重要なツールとして利用できることが期待される.

  8. プロバイオティック乳酸菌と“生体防御食品”

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    1.乳業用乳酸菌由来DNAによるパイエル板細胞における活性化標的細胞 幼若化活性が認められた5菌株,L. bulgaricus NCFB 1979,NCFB 2074,NIAI yB62, NIAI B6 ,S. thermophilus OLS 3073,L. gasseri JCM 1131TのDNAについてパイエル板細胞におけるCD69の誘導能を解析したところ,CD4/8およびTCRα/β陰性の細胞集団において全ての菌株のDNAが強いCD69の発現誘導を示した.また,CD4/8陽性およびTCRα/β陰性の細胞集団においても,全ての菌株のDNAによりCD69の発現誘導がされた.L. bulgaricus NIAI B6, yB62, NCFB 1979, L. gasseri JCM 1131T, S. thermophilus OLS 3073はCD4/8強陽性およびTCRα/β陽性(R4)の細胞集団に対してCD69の発現を誘導した. L. bulgaricus NIAI B6由来DNAモチーフのOLLB7および陽性コントロールのCpG ODN 1826は全ての細胞集団に対してCD69の発現を誘導したが,特にCD4/8およびTCRα/β陰性,CD4/8陽性およびTCRα/β陰性の細胞集団に対して強くCD69の発現を誘導した. 2.ヒトのモデル系として期待されるブタ腸管におけるIL-7のクローニング 初生仔ブタ腸管由来RNAを調製し,他のほ乳類の配列を基に化学合成したPCRプライマーを用いたRACE法により176アミノ酸配列をコードする531bpからなるORFを含む824bpの塩基配列が明らかとなった.推定アミノ酸配列はヒト,ヒツジ,マウスに対して高い相同性を示し(それぞれ73.3%, 64.7%, 88.6%,また,ヒトと同様にマウスにおいて欠損している18アミノ酸残基(VKGRKPPSLGEAQLTKNL)からなる領域が保存されていた(図1). 3.腸管パイエル板における菌体およびDNAの通過と免疫細胞結合性 マウス腸管管腔内にFITC標識した菌体およびDNAを入れ,37℃,2時間インキュベートし,パイエル板に取り込まれたFITC標識菌体およびDNAをフローサイトメトリーにより解析した.Cytokeratin-18陽性,Mac-1陰性の細胞集団においてL. gasseri(LG),L. bulgaricus(LB)がそれぞれ94%, 81%という高い割合で検出された.DNAは全ての細胞集団において特に強く結合する細胞(Fluorescence Intensity >103)が認められ,特にCytokeratin-18陰性,Mac-1陰性の細胞集団においてその傾向は顕著であった. マウス腸管管腔内にFITC標識した菌体およびDNAを入れ,

  9. 莢膜性粘質物生産性 L. lactis ssp. cremoris が生産するリン酸化多糖のリンパ球機能亢進

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    Lact. lactis ssp. cremorisが生産する幼若化活性物質の本体は,グルコース,ガラクトース,ラムノースを構成糖とし,リンを含むリン酸化多糖であることが判明した.本多糖は,マウスのリンパ球のみならず,ウシ,ブタおよびヒトのリンパ球に対しても,幼若化活性を示す事がわかった.

  10. 粘質物産生乳用乳酸菌の免疫調節作用

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    粘質物産生乳用乳酸菌Lact. lactis ssp. cremoris KVS20およびその粘質物は,in vivoにおいて,細胞障害性マクロファージを誘導し,抗腫瘍性を発現することが明らかとなった.

  11. 粘質発酵乳のもつ生理効果とその有効成分の解明

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    粘質発酵乳ヴィリーより粘質性乳酸菌を分離・同定し,Lact. lactis ssp. cremoris KVS20と命名した.S-180移植腫瘍系において同菌を連続9日間投与することにより,腫瘍増殖が抑制され,平均生存日数が増加した.また,本菌は腫瘍細胞に対して直接細胞傷害性を示さないことから,この腫瘍活性は宿主免疫機能の増強を介して誘導されるものと考えられた.

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