Details of the Researcher

PHOTO

Shu Tadaka
Section
Tohoku Medical Megabank Organization
Job title
Senior Assistant Professor
Degree

  • 博士（情報科学）（東北大学）

  • 修士（情報科学）（東北大学）

Research History 2

  • 2023/10 - Present
    Tohoku University　Tohoku Medical Megabank Organization Department of Integrative Genomics　Senior Assistant Professor

  • 2017/04 - 2023/09
    Tohoku University　Tohoku Medical Megabank Organization, Department of Integrative Genomics

Professional Memberships 1

  • JAPANESE SOCIETY FOR BIOINFORMATICS

Research Areas 2

  • Life sciences / Systems genomics /

  • Informatics / Biological, health, and medical informatics /

Papers 57

  1. Returning genetic risk information for hereditary cancers to participants in a population-based cohort study in Japan. International-journal

    Kinuko Ohneda, Yoichi Suzuki, Yohei Hamanaka, Shu Tadaka, Muneaki Shimada, Junko Hasegawa-Minato, Masanobu Takahashi, Nobuo Fuse, Fuji Nagami, Hiroshi Kawame, Tomoko Kobayashi, Yumi Yamaguchi-Kabata, Kengo Kinoshita, Tomohiro Nakamura, Soichi Ogishima, Kazuki Kumada, Hisaaki Kudo, Shin-Ichi Kuriyama, Yoko Izumi, Ritsuko Shimizu, Mikako Tochigi, Tokiwa Motonari, Hideki Tokunaga, Atsuo Kikuchi, Atsushi Masamune, Yoko Aoki, Chikashi Ishioka, Takanori Ishida, Masayuki Yamamoto

    Journal of human genetics　2025/01/17

    DOI： 10.1038/s10038-024-01314-w 　

    More details Close

    Large-scale population cohort studies that collect genomic information are tasked with returning an assessment of genetic risk for hereditary cancers to participants. While several studies have applied to return identified genetic risks to participants, comprehensive surveys of participants' understanding, feelings, and behaviors toward cancer risk remain to be conducted. Here, we report our experience and surveys of returning genetic risks to 100 carriers of pathogenic variants for hereditary cancers identified through whole genome sequencing of 50 000 individuals from the Tohoku Medical Megabank project, a population cohort study. The participants were carriers of pathogenic variants associated with either hereditary breast and ovarian cancer (n = 79, median age=41) or Lynch syndrome (n = 21, median age=62). Of these, 28% and 38% had a history of cancer, respectively. We provided information on cancer risk, heritability, and clinical actionability to the participants in person. The comprehension assessment revealed that the information was better understood by younger (under 60 years) females than by older males. Scores on the cancer worry scale were positively related to cancer experiences and general psychological distress. Seventy-one participants were followed up at Tohoku University Hospital; six females underwent risk-reducing surgery triggered by study participation and three were newly diagnosed with cancer during surveillance. Among first-degree relatives of hereditary breast and ovarian cancer carriers, participants most commonly shared the information with daughters. This study showed the benefits of returning genetic risks to the general population and will provide insights into returning genetic risks to asymptomatic pathogenic variant carriers in both clinical and research settings.

  2. Next-generation sequencing analysis with a population-specific human reference genome.

    Tomohisa Suzuki, Kota Ninomiya, Takamitsu Funayama, Yasunobu Okamura, Shu Tadaka, Kengo Kinoshita, Masayuki Yamamoto, Shigeo Kure, Atsuo Kikuchi, Gen Tamiya, Jun Takayama

    Genes & genetic systems　2024/10/28

    DOI： 10.1266/ggs.24-00112 　

    More details Close

    Next-generation sequencing (NGS) has become widely available and is routinely used in basic research and clinical practice. The reference genome sequence is an essential resource for NGS analysis, and several population-specific reference genomes have recently been constructed to provide a choice to deal with the vast genetic diversity of human samples. However, resources supporting population-specific references are insufficient, and it is burdensome to perform analysis using these reference genomes. Here, we constructed a set of resources to support NGS analysis using the Japanese reference genome, JG. We created resources for variant calling, variant-effect prediction, gene and repeat element annotations, read mappability, and RNA-seq analysis. We also provide a resource for reference coordinate conversion for further annotation enrichment. We then provide a variant calling protocol with JG. Our resources provide a guide to prepare sufficient resources for the use of population-specific reference genomes and can facilitate the migration of reference genomes.

  3. Functional significance of CYP2B6 gene rare allelic variants identified in Japanese individuals

    Shuki Yamazaki, Eiji Hishinuma, Yuma Suzuki, Akiko Ueda, Caroline Kijogi, Tomoki Nakayoshi, Akifumi Oda, Sakae Saito, Shu Tadaka, Kengo Kinoshita, Masamitsu Maekawa, Yu Sato, Masaki Kumondai, Nariyasu Mano, Noriyasu Hirasawa, Masahiro Hiratsuka

    Biochemical Pharmacology　116515-116515　2024/08

    Publisher: Elsevier BV

    DOI： 10.1016/j.bcp.2024.116515 　

    ISSN： 0006-2952

  4. Functional evaluation of novel variants of B4GALNT1 in a patient with hereditary spastic paraplegia and the general population International-journal Peer-reviewed

    Kei-ichiro Inamori, Katsuya Nakamura, Fumi Shishido, Jia-Chen Hsu, Masakazu Nagafuku, Takahiro Nitta, Junji Ikeda, Hidekane Yoshimura, Minori Kodaira, Naomi Tsuchida, Naomichi Matsumoto, Satoshi Uemura, Shiho Ohno, Noriyoshi Manabe, Yoshiki Yamaguchi, Akira Togayachi, Kiyoko F. Aoki-Kinoshita, Shoko Nishihara, Jun-ichi Furukawa, Tadashi Kaname, Masahiko Nakamura, Takayoshi Shimohata, Shu Tadaka, Matsuyuki Shirota, Kengo Kinoshita, Yutaka Nakamura, Isao Ohno, Yoshiki Sekijima, Jin-ichi Inokuchi

    Frontiers in Neuroscience　18　1437668-1437668　2024/07/31

    Publisher: Frontiers Media SA

    DOI： 10.3389/fnins.2024.1437668 　

    eISSN： 1662-453X

    More details Close

    Hereditary spastic paraplegia (HSP) is a heterogeneous group of neurological disorders that are characterized by progressive spasticity and weakness in the lower limbs. SPG26 is a complicated form of HSP, which includes not only weakness in the lower limbs, but also cognitive impairment, developmental delay, cerebellar ataxia, dysarthria, and peripheral neuropathy, and is caused by biallelic mutations in the B4GALNT1 (beta-1,4-N-acetylgalactosaminyltransferase 1) gene. The B4GALNT1 gene encodes ganglioside GM2/GD2 synthase (GM2S), which catalyzes the transfer of N-acetylgalactosamine to lactosylceramide, GM3, and GD3 to generate GA2, GM2, and GD2, respectively. The present study attempted to characterize a novel B4GALNT1 variant (NM_001478.5:c.937G>A p.Asp313Asn) detected in a patient with progressive multi-system neurodegeneration as well as deleterious variants found in the general population in Japan. Peripheral blood T cells from our patient lacked the ability for activation-induced ganglioside expression assessed by cell surface cholera toxin binding. Structural predictions suggested that the amino acid substitution, p.Asp313Asn, impaired binding to the donor substrate UDP-GalNAc. An in vitro enzyme assay demonstrated that the variant protein did not exhibit GM2S activity, leading to the diagnosis of HSP26. This is the first case diagnosed with SPG26 in Japan. We then extracted 10 novel missense variants of B4GALNT1 from the whole-genome reference panel jMorp (8.3KJPN) of the Tohoku medical megabank organization, which were predicted to be deleterious by Polyphen-2 and SIFT programs. We performed a functional evaluation of these variants and demonstrated that many showed perturbed subcellular localization. Five of these variants exhibited no or significantly decreased GM2S activity with less than 10% activity of the wild-type protein, indicating that they are carrier variants for HSP26. These results provide the basis for molecular analyses of B4GALNT1 variants present in the Japanese population and will help improve the molecular diagnosis of patients suspected of having HSP.

  5. Identifying critical age and gender-based metabolomic shifts in a Japanese population of the Tohoku Medical Megabank cohort. International-journal

    Miyuki Sakurai, Ikuko N Motoike, Eiji Hishinuma, Yuichi Aoki, Shu Tadaka, Mana Kogure, Masatsugu Orui, Mami Ishikuro, Taku Obara, Naoki Nakaya, Kazuki Kumada, Atsushi Hozawa, Shinichi Kuriyama, Masayuki Yamamoto, Seizo Koshiba, Kengo Kinoshita

    Scientific reports　14　(1)　15681-15681　2024/07/08

    DOI： 10.1038/s41598-024-66180-0 　

    More details Close

    Understanding the physiological changes associated with aging and the associated disease risks is essential to establish biomarkers as indicators of biological aging. This study used the NMR-measured plasma metabolome to calculate age-specific metabolite indices. In doing so, the scope of the study was deliberately simplified to capture general trends and insights into age-related changes in metabolic patterns. In addition, changes in metabolite concentrations with age were examined in detail, with the period from 55-59 to 60-64 years being a period of significant metabolic change, particularly in men, and from 45-49 to 50-54 years in females. These results illustrate the different variations in metabolite concentrations by sex and provide new insights into the relationship between age and metabolic diseases.

  6. Two-stage strategy using denoising autoencoders for robust reference-free genotype imputation with missing input genotypes

    Kaname Kojima, Shu Tadaka, Yasunobu Okamura, Kengo Kinoshita

    Journal of Human Genetics　69　(10)　511-518　2024/06/25

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s10038-024-01261-6 　

    ISSN： 1434-5161

    eISSN： 1435-232X

    More details Close

    Abstract Widely used genotype imputation methods are based on the Li and Stephens model, which assumes that new haplotypes can be represented by modifying existing haplotypes in a reference panel through mutations and recombinations. These methods use genotypes from SNP arrays as inputs to estimate haplotypes that align with the input genotypes by analyzing recombination patterns within a reference panel, and then infer unobserved variants. While these methods require reference panels in an identifiable form, their public use is limited due to privacy and consent concerns. One strategy to overcome these limitations is to use de-identified haplotype information, such as summary statistics or model parameters. Advances in deep learning (DL) offer the potential to develop imputation methods that use haplotype information in a reference-free manner by handling it as model parameters, while maintaining comparable imputation accuracy to methods based on the Li and Stephens model. Here, we provide a brief introduction to DL-based reference-free genotype imputation methods, including RNN-IMP, developed by our research group. We then evaluate the performance of RNN-IMP against widely-used Li and Stephens model-based imputation methods in terms of accuracy (R2), using the 1000 Genomes Project Phase 3 dataset and corresponding simulated Omni2.5 SNP genotype data. Although RNN-IMP is sensitive to missing values in input genotypes, we propose a two-stage imputation strategy: missing genotypes are first imputed using denoising autoencoders; RNN-IMP then processes these imputed genotypes. This approach restores the imputation accuracy that is degraded by missing values, enhancing the practical use of RNN-IMP.

  7. Next-generation sequencing analysis with a population-specific human reference genome

    Tomohisa Suzuki, Kota Ninomiya, Takamitsu Funayama, Yasunobu Okamura, Shu Tadaka, Kengo Kinoshita, Masayuki Yamamoto, Shigeo Kure, Atsuo Kikuchi, Gen Tamiya, Jun Takayama

    Genes & Genetic Systems　2024

    Publisher: Genetics Society of Japan

    DOI： 10.1266/ggs.24-00112 　

    ISSN： 1341-7568

    eISSN： 1880-5779

  8. jMorp: Japanese Multi-Omics Reference Panel update report 2023. International-journal

    Shu Tadaka, Junko Kawashima, Eiji Hishinuma, Sakae Saito, Yasunobu Okamura, Akihito Otsuki, Kaname Kojima, Shohei Komaki, Yuichi Aoki, Takanari Kanno, Daisuke Saigusa, Jin Inoue, Matsuyuki Shirota, Jun Takayama, Fumiki Katsuoka, Atsushi Shimizu, Gen Tamiya, Ritsuko Shimizu, Masahiro Hiratsuka, Ikuko N Motoike, Seizo Koshiba, Makoto Sasaki, Masayuki Yamamoto, Kengo Kinoshita

    Nucleic acids research　2023/11/01

    DOI： 10.1093/nar/gkad978 　

    More details Close

    Modern medicine is increasingly focused on personalized medicine, and multi-omics data is crucial in understanding biological phenomena and disease mechanisms. Each ethnic group has its unique genetic background with specific genomic variations influencing disease risk and drug response. Therefore, multi-omics data from specific ethnic populations are essential for the effective implementation of personalized medicine. Various prospective cohort studies, such as the UK Biobank, All of Us and Lifelines, have been conducted worldwide. The Tohoku Medical Megabank project was initiated after the Great East Japan Earthquake in 2011. It collects biological specimens and conducts genome and omics analyses to build a basis for personalized medicine. Summary statistical data from these analyses are available in the jMorp web database (https://jmorp.megabank.tohoku.ac.jp), which provides a multidimensional approach to the diversity of the Japanese population. jMorp was launched in 2015 as a public database for plasma metabolome and proteome analyses and has been continuously updated. The current update will significantly expand the scale of the data (metabolome, genome, transcriptome, and metagenome). In addition, the user interface and backend server implementations were rewritten to improve the connectivity between the items stored in jMorp. This paper provides an overview of the new version of the jMorp.

  9. Functional Characterization of 29 Cytochrome P450 4F2 Variants Identified in a Population of 8,380 Japanese Subjects and Assessment of Arachidonic Acid ω-Hydroxylation. International-journal

    Yu Sato, Eiji Hishinuma, Shuki Yamazaki, Akiko Ueda, Masaki Kumondai, Sakae Saito, Shu Tadaka, Kengo Kinoshita, Tomoki Nakayoshi, Akifumi Oda, Masamitsu Maekawa, Nariyasu Mano, Noriyasu Hirasawa, Masahiro Hiratsuka

    Drug metabolism and disposition: the biological fate of chemicals　2023/09/29

    DOI： 10.1124/dmd.123.001389 　

    More details Close

    Cytochrome P450 4F2 (CYP4F2) is an enzyme that is involved in the metabolism of arachidonic acid (AA), vitamin E and K (VK), and xenobiotics including drugs. CYP4F2*3 polymorphism (rs2108622; c.1297G>A; p.Val433Met) has been associated with hypertension, ischemic stroke, and variation in the effectiveness of the anticoagulant drug warfarin. In this study, we characterized wild-type CYP4F2 and 28 CYP4F2 variants, including a Val433Met substitution, detected in 8,380 Japanese subjects. The CYP4F2 variants were heterologously expressed in 293FT cells to measure the concentrations of CYP4F2 variant holoenzymes using carbon monoxide-reduced difference spectroscopy, where the wild type and 18 holoenzyme variants showed a peak at 450 nm. Kinetic parameters (Vmax , S50 , and CL int as Vmax /S50 ) of AA ω-hydroxylation were determined for the wild type and 21 variants with enzyme activity. Compared to the wild type, two variants showed significantly decreased CL int values for AA ω-hydroxylation. The values for seven variants could not be determined because no enzymatic activity was detected at the highest substrate concentration used. Three-dimensional structural modeling was performed to determine the reason for reduced enzymatic activity of the CYP4F2 variants. Our findings contribute to a better understanding of CYP4F2 variant-associated diseases and possible future therapeutic strategies. Significance Statement CYP4F2 is involved in the metabolism of AA and VK, and CYP4F2*3 polymorphisms have been associated with hypertension and variation in the effectiveness of the anticoagulant drug warfarin. In this study, we present a functional analysis of 28 CYP4F2 variants identified in Japanese subjects, demonstrating that seven gene polymorphisms cause loss of CYP4F2 function, and propose structural changes that lead to altered function.

  10. 新生児臍帯血の網羅的エピゲノム解析による妊娠初期までの喫煙経験が次世代に及ぼす影響

    美辺 詩織, 小巻 翔平, 大桃 秀樹, 高嶋 聰, 小野 加奈子, 山崎 弥生, 須藤 洋一, 田高 周, 水野 聖士, 石黒 真美, 工藤 久智, 小原 拓, 熊田 和貴, 勝岡 史城, 荻島 創一, 木下 賢吾, 菅原 準一, 栗山 進一, 清水 厚志

    DOHaD研究　11　(3)　37-37　2023/08

    Publisher: (一社)日本DOHaD学会

    ISSN： 2187-2562

    eISSN： 2187-2597

  11. Functional characterization of 12 dihydropyrimidinase allelic variants in Japanese individuals for the prediction of 5-fluorouracil treatment-related toxicity. International-journal

    Eiji Hishinuma, Yoko Narita, Evelyn Marie Gutiérrez Rico, Akiko Ueda, Kai Obuchi, Yoshikazu Tanaka, Sakae Saito, Shu Tadaka, Kengo Kinoshita, Masamitsu Maekawa, Nariyasu Mano, Tomoki Nakayoshi, Akifumi Oda, Noriyasu Hirasawa, Masahiro Hiratsuka

    Drug metabolism and disposition: the biological fate of chemicals　51　(2)　165-173　2022/11/22

    DOI： 10.1124/dmd.122.001045 　

    More details Close

    The drug 5-fluorouracil (5-FU) is the first-choice chemotherapeutic agent against advanced-stage cancers. However, 10-30% of treated patients experience grade 3-4 toxicity. The deficiency of dihydropyrimidinase (DHPase), which catalyzes the second step of the 5-FU degradation pathway, is correlated with the risk of developing toxicity. Thus, genetic polymorphisms within DPYS, the DHPase-encoding gene, could potentially serve as predictors of severe 5-FU-related toxicity. We identified 12 novel DPYS variants in 3,554 Japanese individuals, but the effects of these mutations on function remain unknown. In the current study, we performed in vitro enzymatic analyses of the 12 newly identified DHPase variants. Dihydrouracil or dihydro-5-FU hydrolytic ring-opening kinetic parameters, Km and Vmax , and intrinsic clearance (CLint = Vmax /Km ) of the wild-type DHPase and eight variants were measured. Five of these variants (R118Q, H295R, T418I, Y448H, and T513A) showed significantly reduced CLint compared with that in the wild-type. The parameters for the remaining four variants (V59F, D81H, T136M, and R490H) could not be determined as dihydrouracil and dihydro-5-FU hydrolytic ring-opening activity was undetectable. We also determined DHPase variant protein stability using cycloheximide and bortezomib. The mechanism underlying the observed changes in the kinetic parameters was clarified using blue-native polyacrylamide gel electrophoresis and three-dimensional structural modeling. The results suggested that the decrease or loss of DHPase enzymatic activity was due to reduced stability and oligomerization of DHPase variant proteins. Our findings support the use of DPYS polymorphisms as novel pharmacogenomic markers for predicting severe 5-FU-related toxicity in the Japanese population. Significance Statement DHPase contributes to the degradation of 5-fluorouracil, and genetic polymorphisms that cause decreased activity of DHPase can cause severe toxicity. In this study, we performed functional analysis of 12 DHPase variants in the Japanese population and identified 9 genetic polymorphisms that cause reduced DHPase function. In addition, we found that the ability to oligomerize and the conformation of the active site are important for the enzymatic activity of DHPase.

  12. 遺伝・生活習慣が日本人の血中代謝プロファイルに与える影響の解析

    小柴 生造, 元池 育子, 井上 仁, 菱沼 英史, 青木 裕一, 櫻井 美由紀, 佐藤 允治, 七谷 圭, 田高 周, 城田 松之, 木下 賢吾, 山本 雅之

    日本生化学会大会プログラム・講演要旨集　95回　1T17e-02　2022/11

    Publisher: (公社)日本生化学会

  13. jMorp: Japanese Multi Omics Reference Panel

    田高 周, 菱沼 英史, 井上 仁, 青木 裕一, 岡村 容伸, 川嶋 順子, 大槻 晃史, 田口 恵子, 菅野 貴成, 元池 育子, 勝岡 史城, 小柴 生造, 木下 賢吾

    トーゴーの日2022　1　2022/10/05

    Publisher: JST NBDC事業推進部

    DOI： 10.18908/togo2022.p040 　

  14. Pathological variants in genes associated with disorders of sex development and central causes of hypogonadism in a whole-genome reference panel of 8380 Japanese individuals. International-journal

    Naomi Shiga, Yumi Yamaguchi-Kabata, Saori Igeta, Jun Yasuda, Shu Tadaka, Takamichi Minato, Zen Watanabe, Junko Kanno, Gen Tamiya, Nobuo Fuse, Kengo Kinoshita, Shigeo Kure, Akiko Kondo, Masahito Tachibana, Masayuki Yamamoto, Nobuo Yaegashi, Junichi Sugawara

    Human genome variation　9　(1)　34-34　2022/09/28

    DOI： 10.1038/s41439-022-00213-w 　

    More details Close

    Disorders of sex development (DSD) comprises a congenital condition in which chromosomal, gonadal, or anatomical sex development is atypical. In this study, we screened for pathogenic variants in 32 genes associated with DSDs and central causes of hypogonadism (CHG) in a whole-genome reference panel including 8380 Japanese individuals constructed by Tohoku Medical Megabank Organization. Candidate pathogenic (P) or likely pathogenic (LP) variants were extracted from the ClinVar, InterVar, and Human Gene Mutation databases. Ninety-one candidate pathological variants were found in 25 genes; 28 novel candidate variants were identified. Nearly 1 in 40 (either ClinVar or InterVar P or LP) to 157 (both ClinVar and InterVar P or LP) individuals were found to be carriers of recessive DSD and CHG alleles. In these data, genes implicated in gonadal dysfunction did not show loss-of-function variants, with a relatively high tendency of intolerance for haploinsufficiency based on pLI and Episcore, both of which can be used for estimating haploinsufficiency. We report the types and frequencies of causative variants for DSD and CHG in the general Japanese population. This study furthers our understanding of the genetic causes and helps to refine genetic counseling of DSD and CHG.

  15. Construction of a trio-based structural variation panel utilizing activated T lymphocytes and long-read sequencing technology. International-journal

    Akihito Otsuki, Yasunobu Okamura, Noriko Ishida, Shu Tadaka, Jun Takayama, Kazuki Kumada, Junko Kawashima, Keiko Taguchi, Naoko Minegishi, Shinichi Kuriyama, Gen Tamiya, Kengo Kinoshita, Fumiki Katsuoka, Masayuki Yamamoto

    Communications biology　5　(1)　991-991　2022/09/20

    DOI： 10.1038/s42003-022-03953-1 　

    More details Close

    Long-read sequencing technology enable better characterization of structural variants (SVs). To adapt the technology to population-scale analyses, one critical issue is to obtain sufficient amount of high-molecular-weight genomic DNA. Here, we propose utilizing activated T lymphocytes, which can be established efficiently in a biobank to stably supply high-grade genomic DNA sufficiently. We conducted nanopore sequencing of 333 individuals constituting 111 trios with high-coverage long-read sequencing data (depth 22.2x, N50 of 25.8 kb) and identified 74,201 SVs. Our trio-based analysis revealed that more than 95% of the SVs were concordant with Mendelian inheritance. We also identified SVs associated with clinical phenotypes, all of which appear to be stably transmitted from parents to offspring. Our data provide a catalog of SVs in the general Japanese population, and the applied approach using the activated T-lymphocyte resource will contribute to biobank-based human genetic studies focusing on SVs at the population scale.

  16. A Pilot Study for Return of Individual Pharmacogenomic Results to Population-Based Cohort Study Participants. Peer-reviewed

    Kinuko Ohneda, Masahiro Hiratsuka, Hiroshi Kawame, Fuji Nagami, Yoichi Suzuki, Kichiya Suzuki, Akira Uruno, Mika Sakurai-Yageta, Yohei Hamanaka, Makiko Taira, Soichi Ogishima, Shinichi Kuriyama, Atsushi Hozawa, Hiroaki Tomita, Naoko Minegishi, Junichi Sugawara, Inaho Danjoh, Tomohiro Nakamura, Tomoko Kobayashi, Yumi Yamaguchi-Kabata, Shu Tadaka, Taku Obara, Eiji Hishimuma, Nariyasu Mano, Masaki Matsuura, Yuji Sato, Masateru Nakasone, Yohei Honkura, Jun Suzuki, Yukio Katori, Yoichi Kakuta, Atsushi Masamune, Yoko Aoki, Masaharu Nakayama, Shigeo Kure, Kengo Kinoshita, Nobuo Fuse, Masayuki Yamamoto

    JMA journal　5　(2)　177-189　2022/04/15

    DOI： 10.31662/jmaj.2021-0156 　

    More details Close

    Introduction: Pharmacogenomic (PGx) testing results provide valuable information on drug selection and appropriate dosing, maximization of efficacy, and minimization of adverse effects. Although the number of large-scale, next-generation-sequencing-based PGx studies has recently increased, little is known about the risks and benefits of returning PGx results to ostensibly healthy individuals in research settings. Methods: Single-nucleotide variants of three actionable PGx genes, namely, MT-RNR1, CYP2C19, and NUDT15, were returned to 161 participants in a population-based Tohoku Medical Megabank project. Informed consent was obtained from the participants after a seminar on the outline of this study. The results were sent by mail alongside sealed information letter intended for clinicians. As an exception, genetic counseling was performed for the MT-RNR1 m.1555A > G variant carriers by a medical geneticist, and consultation with an otolaryngologist was encouraged. Questionnaire surveys (QSs) were conducted five times to evaluate the participants' understanding of the topic, psychological impact, and attitude toward the study. Results: Whereas the majority of participants were unfamiliar with the term PGx, and none had undergone PGx testing before the study, more than 80% of the participants felt that they could acquire basic PGx knowledge sufficient to understand their genomic results and were satisfied with their potential benefit and use in future prescriptions. On the other hand, some felt that the PGx concepts or terminology was difficult to fully understand and suggested that in-person return of the results was desirable. Conclusions: These results collectively suggest possible benefits of returning preemptive PGx information to ostensibly healthy cohort participants in a research setting.

  17. Importance of Rare DPYD Genetic Polymorphisms for 5-Fluorouracil Therapy in the Japanese Population. International-journal

    Eiji Hishinuma, Yoko Narita, Kai Obuchi, Akiko Ueda, Sakae Saito, Shu Tadaka, Kengo Kinoshita, Masamitsu Maekawa, Nariyasu Mano, Noriyasu Hirasawa, Masahiro Hiratsuka

    Frontiers in pharmacology　13　930470-930470　2022

    DOI： 10.3389/fphar.2022.930470 　

    More details Close

    Dihydropyrimidine dehydrogenase (DPD), encoded by the DPYD gene, is the rate-limiting enzyme in 5-fluorouracil (5-FU) degradation. In Caucasians, four DPYD risk variants are recognized to be responsible for interindividual variations in the development of 5-FU toxicity. However, these risk variants have not been identified in Asian populations. Recently, 41 DPYD allelic variants, including 15 novel single nucleotide variants, were identified in 3,554 Japanese individuals by analyzing their whole-genome sequences; however, the effects of these variants on DPD enzymatic activity remain unknown. In the present study, an in vitro analysis was performed on 41 DPD allelic variants and three DPD risk variants to elucidate the changes in enzymatic activity. Wild-type and 44 DPD-variant proteins were heterologously expressed in 293FT cells. DPD expression levels and dimerization of DPD were determined by immunoblotting after SDS-PAGE and blue native PAGE, respectively. The enzymatic activity of DPD was evaluated by quantification of dihydro-5-FU, a metabolite of 5-FU, using high-performance liquid chromatography-tandem mass spectrometry. Moreover, we used 3D simulation modeling to analyze the effect of amino acid substitutions on the conformation of DPD. Among the 41 DPD variants, seven exhibited drastically decreased intrinsic clearance (CL int ) compared to the wild-type protein. Moreover, R353C and G926V exhibited no enzymatic activity, and the band patterns observed in the immunoblots after blue native PAGE indicated that DPD dimerization is required for its enzymatic activity. Our data suggest that these variants may contribute to the significant inter-individual variability observed in the pharmacokinetics and pharmacodynamics of 5-FU. In our study, nine DPD variants exhibited drastically decreased or no enzymatic activity due to dimerization inhibition or conformational changes in each domain. Especially, the rare DPYD variants, although at very low frequencies, may serve as important pharmacogenomic markers associated with the severe 5-FU toxicity in Japanese population.

  18. dbTMM: an integrated database of large-scale cohort, genome and clinical data for the Tohoku Medical Megabank Project. International-journal

    Soichi Ogishima, Satoshi Nagaie, Satoshi Mizuno, Ryosuke Ishiwata, Keita Iida, Kazuro Shimokawa, Takako Takai-Igarashi, Naoki Nakamura, Sachiko Nagase, Tomohiro Nakamura, Naho Tsuchiya, Naoki Nakaya, Keiko Murakami, Fumihiko Ueno, Tomomi Onuma, Mami Ishikuro, Taku Obara, Shunji Mugikura, Hiroaki Tomita, Akira Uruno, Tomoko Kobayashi, Akito Tsuboi, Shu Tadaka, Fumiki Katsuoka, Akira Narita, Mika Sakurai, Satoshi Makino, Gen Tamiya, Yuichi Aoki, Ritsuko Shimizu, Ikuko N Motoike, Seizo Koshiba, Naoko Minegishi, Kazuki Kumada, Takahiro Nobukuni, Kichiya Suzuki, Inaho Danjoh, Fuji Nagami, Kozo Tanno, Hideki Ohmomo, Koichi Asahi, Atsushi Shimizu, Atsushi Hozawa, Shinichi Kuriyama, Nobuo Fuse, Teiji Tominaga, Shigeo Kure, Nobuo Yaegashi, Kengo Kinoshita, Makoto Sasaki, Hiroshi Tanaka, Masayuki Yamamoto

    Human genome variation　8　(1)　44-44　2021/12/10

    DOI： 10.1038/s41439-021-00175-5 　

    More details Close

    To reveal gene-environment interactions underlying common diseases and estimate the risk for common diseases, the Tohoku Medical Megabank (TMM) project has conducted prospective cohort studies and genomic and multiomics analyses. To establish an integrated biobank, we developed an integrated database called "dbTMM" that incorporates both the individual cohort/clinical data and the genome/multiomics data of 157,191 participants in the Tohoku Medical Megabank project. To our knowledge, dbTMM is the first database to store individual whole-genome data on a variant-by-variant basis as well as cohort/clinical data for over one hundred thousand participants in a prospective cohort study. dbTMM enables us to stratify our cohort by both genome-wide genetic factors and environmental factors, and it provides a research and development platform that enables prospective analysis of large-scale data from genome cohorts.

  19. Genetic loci for lung function in Japanese adults with adjustment for exhaled nitric oxide levels as airway inflammation indicator

    Mitsuhiro Yamada, Ikuko N. Motoike, Kaname Kojima, Nobuo Fuse, Atsushi Hozawa, Shinichi Kuriyama, Fumiki Katsuoka, Shu Tadaka, Matsuyuki Shirota, Miyuki Sakurai, Tomohiro Nakamura, Yohei Hamanaka, Kichiya Suzuki, Junichi Sugawara, Soichi Ogishima, Akira Uruno, Eiichi N. Kodama, Naoya Fujino, Tadahisa Numakura, Tomohiro Ichikawa, Ayumi Mitsune, Takashi Ohe, Kengo Kinoshita, Masakazu Ichinose, Hisatoshi Sugiura, Masayuki Yamamoto

    Communications Biology　4　(1)　2021/12

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s42003-021-02813-8 　

    eISSN： 2399-3642

    More details Close

    <title>Abstract</title>Lung function reflects the ability of the respiratory system and is utilized for the assessment of respiratory diseases. Because type 2 airway inflammation influences lung function, genome wide association studies (GWAS) for lung function would be improved by adjustment with an indicator of the inflammation. Here, we performed a GWAS for lung function with adjustment for exhaled nitric oxide (FeNO) levels in two independent Japanese populations. Our GWAS with genotype imputations revealed that the <italic>RNF5/AGER</italic> locus including <italic>AGER</italic> rs2070600 SNP, which introduces a G82S substitution of AGER, was the most significantly associated with FEV1/FVC. Three other rare missense variants of AGER were further identified. We also found genetic loci with three candidate genes (<italic>NOS2, SPSB2</italic> and <italic>RIPOR2</italic>) associated with FeNO levels. Analyses with the BioBank-Japan GWAS resource revealed genetic links of FeNO and asthma-related traits, and existence of common genetic background for allergic diseases and their biomarkers. Our study identified the genetic locus most strongly associated with airway obstruction in the Japanese population and three genetic loci associated with FeNO, an indicator of type 2 airway inflammation in adults.

  20. 代謝プロファイルに影響を与える遺伝要因の網羅的解析

    小柴 生造, 元池 育子, 三枝 大輔, 井上 仁, 菱沼 英史, 青木 裕一, 田高 周, 城田 松之, 木下 賢吾, 山本 雅之

    日本生化学会大会プログラム・講演要旨集　94回　[P-837]　2021/11

    Publisher: (公社)日本生化学会

  21. Comparison of Kit-Based Metabolomics with Other Methodologies in a Large Cohort, towards Establishing Reference Values

    Daisuke Saigusa, Eiji Hishinuma, Naomi Matsukawa, Masatomo Takahashi, Jin Inoue, Shu Tadaka, Ikuko N. Motoike, Atsushi Hozawa, Yoshihiro Izumi, Takeshi Bamba, Kengo Kinoshita, Kim Ekroos, Seizo Koshiba, Masayuki Yamamoto

    Metabolites　11　(10)　652-652　2021/09/24

    Publisher: MDPI AG

    DOI： 10.3390/metabo11100652 　

    eISSN： 2218-1989

    More details Close

    Metabolic profiling is an omics approach that can be used to observe phenotypic changes, making it particularly attractive for biomarker discovery. Although several candidate metabolites biomarkers for disease expression have been identified in recent clinical studies, the reference values of healthy subjects have not been established. In particular, the accuracy of concentrations measured by mass spectrometry (MS) is unclear. Therefore, comprehensive metabolic profiling in large-scale cohorts by MS to create a database with reference ranges is essential for evaluating the quality of the discovered biomarkers. In this study, we tested 8700 plasma samples by commercial kit-based metabolomics and separated them into two groups of 6159 and 2541 analyses based on the different ultra-high-performance tandem mass spectrometry (UHPLC-MS/MS) systems. We evaluated the quality of the quantified values of the detected metabolites from the reference materials in the group of 2541 compared with the quantified values from other platforms, such as nuclear magnetic resonance (NMR), supercritical fluid chromatography tandem mass spectrometry (SFC-MS/MS) and UHPLC-Fourier transform mass spectrometry (FTMS). The values of the amino acids were highly correlated with the NMR results, and lipid species such as phosphatidylcholines and ceramides showed good correlation, while the values of triglycerides and cholesterol esters correlated less to the lipidomics analyses performed using SFC-MS/MS and UHPLC-FTMS. The evaluation of the quantified values by MS-based techniques is essential for metabolic profiling in a large-scale cohort.

  22. Functional Characterization of 21 Rare Allelic CYP1A2 Variants Identified in a Population of 4773 Japanese Individuals by Assessing Phenacetin O-Deethylation

    Masaki Kumondai, Evelyn Gutiérrez Rico, Eiji Hishinuma, Yuya Nakanishi, Shuki Yamazaki, Akiko Ueda, Sakae Saito, Shu Tadaka, Kengo Kinoshita, Daisuke Saigusa, Tomoki Nakayoshi, Akifumi Oda, Noriyasu Hirasawa, Masahiro Hiratsuka

    Journal of Personalized Medicine　11　(8)　690-690　2021/07/22

    Publisher: MDPI AG

    DOI： 10.3390/jpm11080690 　

    eISSN： 2075-4426

    More details Close

    Cytochrome P450 1A2 (CYP1A2), which accounts for approximately 13% of the total hepatic cytochrome content, catalyzes the metabolic reactions of approximately 9% of frequently used drugs, including theophylline and olanzapine. Substantial inter-individual differences in enzymatic activity have been observed among patients, which could be caused by genetic polymorphisms. Therefore, we functionally characterized 21 novel CYP1A2 variants identified in 4773 Japanese individuals by determining the kinetic parameters of phenacetin O-deethylation. Our results showed that most of the evaluated variants exhibited decreased or no enzymatic activity, which may be attributed to potential structural alterations. Notably, the Leu98Gln, Gly233Arg, Ser380del Gly454Asp, and Arg457Trp variants did not exhibit quantifiable enzymatic activity. Additionally, three-dimensional (3D) docking analyses were performed to further understand the underlying mechanisms behind variant pharmacokinetics. Our data further suggest that despite mutations occurring on the protein surface, accumulating interactions could result in the impairment of protein function through the destabilization of binding regions and changes in protein folding. Therefore, our findings provide additional information regarding rare CYP1A2 genetic variants and how their underlying effects could clarify discrepancies noted in previous phenotypical studies. This would allow the improvement of personalized therapeutics and highlight the importance of identifying and characterizing rare variants.

  23. Japonica Array NEO with increased genome-wide coverage and abundant disease risk SNPs

    Mika Sakurai-Yageta, Kazuki Kumada, Chinatsu Gocho, Satoshi Makino, Akira Uruno, Shu Tadaka, Ikuko N Motoike, Masae Kimura, Shin Ito, Akihito Otsuki, Akira Narita, Hisaaki Kudo, Yuichi Aoki, Inaho Danjoh, Jun Yasuda, Hiroshi Kawame, Naoko Minegishi, Seizo Koshiba, Nobuo Fuse, Gen Tamiya, Masayuki Yamamoto, Kengo Kinoshita

    The Journal of Biochemistry　2021/05/13

    Publisher: Oxford University Press (OUP)

    DOI： 10.1093/jb/mvab060 　

    ISSN： 0021-924X

    eISSN： 1756-2651

    More details Close

    <title>Abstract</title> Ethnic-specific SNP arrays are becoming more important to increase the power of genome-wide association studies in diverse population. In the Tohoku Medical Megabank Project, we have been developing a series of Japonica Arrays (JPA) for genotyping participants based on reference panels constructed from whole-genome sequence data of the Japanese population. Here, we designed a novel version of the SNP array for the Japanese population, called Japonica Array NEO (JPA NEO), comprising a total of 666,883 markers. Among them, 654,246 tag SNPs of autosomes and X chromosome were selected from an expanded reference panel of 3,552 Japanese, 3.5KJPNv2, using pairwise r2 of linkage disequilibrium measures. Additionally, 28,298 markers were included for the evaluation of previously identified disease risk markers from the literature and databases, and those present in the Japanese population were extracted using the reference panel. Through genotyping 286 Japanese samples, we found that the imputation quality r2 and INFO score in the minor allele frequency bin &amp;gt;2.5–5% were &amp;gt;0.9 and &amp;gt;0.8, respectively, and &amp;gt;12 million markers were imputed with an INFO score &amp;gt;0.8. From these results, JPA NEO is a promising tool for genotyping the Japanese population with genome-wide coverage, contributing to the development of genetic risk scores.

  24. Functional Characterization of 40 CYP3A4 Variants by Assessing Midazolam 1′-Hydroxylation and Testosterone 6β-Hydroxylation

    Masaki Kumondai, Evelyn Marie Gutiérrez Rico, Eiji Hishinuma, Akiko Ueda, Sakae Saito, Daisuke Saigusa, Shu Tadaka, Kengo Kinoshita, Tomoki Nakayoshi, Akifumi Oda, Ai Abe, Masamitsu Maekawa, Nariyasu Mano, Noriyasu Hirasawa, Masahiro Hiratsuka

    Drug Metabolism and Disposition　49　(3)　212-220　2021/03

    Publisher: American Society for Pharmacology & Experimental Therapeutics (ASPET)

    DOI： 10.1124/dmd.120.000261 　

    ISSN： 0090-9556

    eISSN： 1521-009X

  25. Functional Assessment of 12 Rare Allelic CYP2C9 Variants Identified in a Population of 4773 Japanese Individuals. International-journal

    Masaki Kumondai, Akio Ito, Evelyn Marie Gutiérrez Rico, Eiji Hishinuma, Akiko Ueda, Sakae Saito, Tomoki Nakayoshi, Akifumi Oda, Shu Tadaka, Kengo Kinoshita, Masamitsu Maekawa, Nariyasu Mano, Noriyasu Hirasawa, Masahiro Hiratsuka

    Journal of personalized medicine　11　(2)　2021/02/02

    DOI： 10.3390/jpm11020094 　

    More details Close

    Cytochrome P450 2C9 (CYP2C9) is an important drug-metabolizing enzyme that contributes to the metabolism of approximately 15% of clinically used drugs, including warfarin, which is known for its narrow therapeutic window. Interindividual differences in CYP2C9 enzymatic activity caused by CYP2C9 genetic polymorphisms lead to inconsistent treatment responses in patients. Thus, in this study, we characterized the functional differences in CYP2C9 wild-type (CYP2C9.1), CYP2C9.2, CYP2C9.3, and 12 rare novel variants identified in 4773 Japanese individuals. These CYP2C9 variants were heterologously expressed in 293FT cells, and the kinetic parameters (Km, kcat, Vmax, catalytic efficiency, and CLint) of (S)-warfarin 7-hydroxylation and tolbutamide 4-hydroxylation were estimated. From this analysis, almost all novel CYP2C9 variants showed significantly reduced or null enzymatic activity compared with that of the CYP2C9 wild-type. A strong correlation was found in catalytic efficiencies between (S)-warfarin 7-hydroxylation and tolbutamide 4-hydroxylation among all studied CYP2C9 variants. The causes of the observed perturbation in enzyme activity were evaluated by three-dimensional structural modeling. Our findings could clarify a part of discrepancies among genotype-phenotype associations based on the novel CYP2C9 rare allelic variants and could, therefore, improve personalized medicine, including the selection of the appropriate warfarin dose.

  26. Publisher Correction: Enhancer remodeling promotes tumor-initiating activity in NRF2-activated non-small cell lung cancers. International-journal

    Keito Okazaki, Hayato Anzawa, Zun Liu, Nao Ota, Hiroshi Kitamura, Yoshiaki Onodera, Md Morshedul Alam, Daisuke Matsumaru, Takuma Suzuki, Fumiki Katsuoka, Shu Tadaka, Ikuko Motoike, Mika Watanabe, Kazuki Hayasaka, Akira Sakurada, Yoshinori Okada, Masayuki Yamamoto, Takashi Suzuki, Kengo Kinoshita, Hiroki Sekine, Hozumi Motohashi

    Nature communications　12　(1)　506-506　2021/01/15

    DOI： 10.1038/s41467-021-20927-9 　

  27. Estimation of the carrier frequencies and proportions of potential patients by detecting causative gene variants associated with autosomal recessive bone dysplasia using a whole-genome reference panel of Japanese individuals. International-journal

    Shinichi Nagaoka, Yumi Yamaguchi-Kabata, Naomi Shiga, Masahito Tachibana, Jun Yasuda, Shu Tadaka, Gen Tamiya, Nobuo Fuse, Kengo Kinoshita, Shigeo Kure, Jun Murotsuki, Masayuki Yamamoto, Nobuo Yaegashi, Junichi Sugawara

    Human genome variation　8　(1)　2-2　2021/01/15

    DOI： 10.1038/s41439-020-00133-7 　

    More details Close

    Bone dysplasias are a group of rare hereditary diseases, with up to 436 disease types. Perinatal diagnosis is clinically important for adequate personalized management and counseling. There are no reports focused on pathogenic variants of bone dysplasias in the general population. In this study, we focused on autosomal recessive bone dysplasias. We identified pathogenic variants using whole-genome reference panel data from 3552 Japanese individuals. For the first time, we were able to estimate the carrier frequencies and the proportions of potential patients. For autosomal recessive bone dysplasias, we detected 198 pathogenic variants of 54 causative genes. We estimated the variant carrier frequencies and the proportions of potential patients with variants associated with four clinically important bone dysplasias: osteogenesis imperfecta (OI), hypophosphatasia (HPP), asphyxiating thoracic dysplasia (ATD), and Ellis-van Creveld syndrome (EvC). The proportions of potential patients with OI, ATD, and EvC based on pathogenic variants classified as "pathogenic" and "likely pathogenic" by InterVar were closer to the reported incidence rates in Japanese subjects. Furthermore, the proportions of potential patients with HPP variants classified as "pathogenic" and "likely pathogenic" in InterVar and "pathogenic" in ClinVar were closer to the reported incidence rates. For bone dysplasia, the findings of this study will provide a better understanding of the variant types and frequencies in the Japanese general population, and should be useful for clinical diagnosis, genetic counseling, and personalized medicine.

  28. jMorp updates in 2020: large enhancement of multi-omics data resources on the general Japanese population. International-journal

    Shu Tadaka, Eiji Hishinuma, Shohei Komaki, Ikuko N Motoike, Junko Kawashima, Daisuke Saigusa, Jin Inoue, Jun Takayama, Yasunobu Okamura, Yuichi Aoki, Matsuyuki Shirota, Akihito Otsuki, Fumiki Katsuoka, Atsushi Shimizu, Gen Tamiya, Seizo Koshiba, Makoto Sasaki, Masayuki Yamamoto, Kengo Kinoshita

    Nucleic acids research　49　(D1)　D536-D544　2021/01/08

    DOI： 10.1093/nar/gkaa1034 　

    More details Close

    In the Tohoku Medical Megabank project, genome and omics analyses of participants in two cohort studies were performed. A part of the data is available at the Japanese Multi Omics Reference Panel (jMorp; https://jmorp.megabank.tohoku.ac.jp) as a web-based database, as reported in our previous manuscript published in Nucleic Acid Research in 2018. At that time, jMorp mainly consisted of metabolome data; however, now genome, methylome, and transcriptome data have been integrated in addition to the enhancement of the number of samples for the metabolome data. For genomic data, jMorp provides a Japanese reference sequence obtained using de novo assembly of sequences from three Japanese individuals and allele frequencies obtained using whole-genome sequencing of 8,380 Japanese individuals. In addition, the omics data include methylome and transcriptome data from ∼300 samples and distribution of concentrations of more than 755 metabolites obtained using high-throughput nuclear magnetic resonance and high-sensitivity mass spectrometry. In summary, jMorp now provides four different kinds of omics data (genome, methylome, transcriptome, and metabolome), with a user-friendly web interface. This will be a useful scientific data resource on the general population for the discovery of disease biomarkers and personalized disease prevention and early diagnosis.

  29. 一般住民バイオバンクの全ゲノム情報を活用したCYP2B6遺伝子多型バリアントの網羅的機能変化解析

    平塚 真弘, 田高 周, 木下 賢吾, 平澤 典保, 渡邊 卓嗣, 齋藤 雄大, 菱沼 英史, 公文代 將希, 前川 正充, 小田 彰史, 齋藤 さかえ, 三枝 大輔

    日本臨床薬理学会学術総会抄録集　42　2-P-L-2　2021

    Publisher: 一般社団法人 日本臨床薬理学会

    DOI： 10.50993/jsptsuppl.42.0_2-P-L-2 　

    More details Close

    <p>【目的】薬物代謝酵素CYP2B6遺伝子の多型性は、抗HIV薬をはじめ多くの薬物代謝反応の個人差を引き起こすと考えられている。CYP遺伝子多型の位置や頻度には民族集団差が存在するため、塩基多型に由来するアミノ酸置換等の酵素活性に及ぼす影響の解析は、日本人集団で同定されたバリアントに関して行うことが重要である。そこで本研究では、東北メディカル・メガバンクの全ゲノム情報を活用して、39種類のCYP2B6遺伝子多型バリアントの機能変化を解析し、薬物代謝活性に及ぼす影響を検討した。【方法】野生型CYP2B6のcDNA配列中に遺伝子多型を導入したバリアント発現ベクターを作製し、ヒト胎児腎臓由来293FT細胞中に各バリアント酵素を発現させた。次に、還元型一酸化炭素吸収差スペクトル測定法によりCYP2B6のホロP450含量および抗CYP2B6抗体を用いたウェスタンブロット法によりホロとアポP450の総量を定量した。酵素機能変化に関しては、抗HIV薬エファビレンツ (EFZ) を基質として一定時間反応させ、代謝物である8-水酸化体をLC-MS/MSを用いて定量し、酵素反応速度論的パラメータを算出した。さらに、3次元ドッキングシミュレーションモデル解析により酵素活性変化の分子メカニズム解明も試みた。【結果・考察】EFZ代謝活性測定において、39種のバリアントのうち15種で酵素活性の消失を認めた。また、酵素反応速度論的パラメータが算出できた24種のバリアントのうち、野生型CYP2B6と比較して、6種で酵素活性が有意に低下し、6種で有意に上昇することが明らかとなった。酵素活性が消失したバリアントのほとんどで、ホロP450含量が定量限界以下であった。また、酵素活性が大きく変化したバリアントでは、ホロP450含量の低下やアミノ酸置換部位周辺のループ構造およびヘリックス構造の変化が認められた。【結論】本研究により、野生型を含めた40種のCYP2B6バリアントについて、それらの酵素活性変化を明らかにした。EFZ服用患者において、酵素活性の消失あるいは低下が生じるCYP2B6遺伝子多型を有する場合、中枢神経障害等の副作用発現リスクの増大や治療中断に繋がる可能性が考えられる。今回の知見がCYP2B6遺伝子多型を考慮した個別化薬物療法を実施する上での情報基盤となり、さらなる臨床応用が期待される。</p>

  30. Novel candidates of pathogenic variants of the BRCA1 and BRCA2 genes from a dataset of 3,552 Japanese whole genomes (3.5KJPNv2). International-journal

    Hideki Tokunaga, Keita Iida, Atsushi Hozawa, Soichi Ogishima, Yoh Watanabe, Shogo Shigeta, Muneaki Shimada, Yumi Yamaguchi-Kabata, Shu Tadaka, Fumiki Katsuoka, Shin Ito, Kazuki Kumada, Yohei Hamanaka, Nobuo Fuse, Kengo Kinoshita, Masayuki Yamamoto, Nobuo Yaegashi, Jun Yasuda

    PloS one　16　(1)　e0236907　2021

    DOI： 10.1371/journal.pone.0236907 　

    More details Close

    Identification of the population frequencies of definitely pathogenic germline variants in two major hereditary breast and ovarian cancer syndrome (HBOC) genes, BRCA1/2, is essential to estimate the number of HBOC patients. In addition, the identification of moderately penetrant HBOC gene variants that contribute to increasing the risk of breast and ovarian cancers in a population is critical to establish personalized health care. A prospective cohort subjected to genome analysis can provide both sets of information. Computational scoring and prospective cohort studies may help to identify such likely pathogenic variants in the general population. We annotated the variants in the BRCA1 and BRCA2 genes from a dataset of 3,552 whole-genome sequences obtained from members of a prospective cohorts with genome data in the Tohoku Medical Megabank Project (TMM) with InterVar software. Computational impact scores (CADD_phred and Eigen_raw) and minor allele frequencies (MAFs) of pathogenic (P) and likely pathogenic (LP) variants in ClinVar were used for filtration criteria. Familial predispositions to cancers among the 35,000 TMM genome cohort participants were analyzed to verify the identified pathogenicity. Seven potentially pathogenic variants were newly identified. The sisters of carriers of these moderately deleterious variants and definite P and LP variants among members of the TMM prospective cohort showed a statistically significant preponderance for cancer onset, from the self-reported cancer history. Filtering by computational scoring and MAF is useful to identify potentially pathogenic variants in BRCA genes in the Japanese population. These results should help to follow up the carriers of variants of uncertain significance in the HBOC genes in the longitudinal prospective cohort study.

  31. Identification of critical genetic variants associated with metabolic phenotypes of the Japanese population

    Seizo Koshiba, Ikuko N. Motoike, Daisuke Saigusa, Jin Inoue, Yuichi Aoki, Shu Tadaka, Matsuyuki Shirota, Fumiki Katsuoka, Gen Tamiya, Naoko Minegishi, Nobuo Fuse, Kengo Kinoshita, Masayuki Yamamoto

    Communications Biology　3　(1)　2020/12

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s42003-020-01383-5 　

    eISSN： 2399-3642

    More details Close

    <title>Abstract</title> We performed a metabolome genome-wide association study for the Japanese population in the prospective cohort study of Tohoku Medical Megabank. By combining whole-genome sequencing and nontarget metabolome analyses, we identified a large number of novel associations between genetic variants and plasma metabolites. Of the identified metabolite-associated genes, approximately half have already been shown to be involved in various diseases. We identified metabolite-associated genes involved in the metabolism of xenobiotics, some of which are from intestinal microorganisms, indicating that the identified genetic variants also markedly influence the interaction between the host and symbiotic bacteria. We also identified five associations that appeared to be female-specific. A number of rare variants that influence metabolite levels were also found, and combinations of common and rare variants influenced the metabolite levels more profoundly. These results support our contention that metabolic phenotyping provides important insights into how genetic and environmental factors provoke human diseases.

  32. Enhancer remodeling promotes tumor-initiating activity in NRF2-activated non-small cell lung cancers. International-journal

    Keito Okazaki, Hayato Anzawa, Zun Liu, Nao Ota, Hiroshi Kitamura, Yoshiaki Onodera, Md Morshedul Alam, Daisuke Matsumaru, Takuma Suzuki, Fumiki Katsuoka, Shu Tadaka, Ikuko Motoike, Mika Watanabe, Kazuki Hayasaka, Akira Sakurada, Yoshinori Okada, Masayuki Yamamoto, Takashi Suzuki, Kengo Kinoshita, Hiroki Sekine, Hozumi Motohashi

    Nature communications　11　(1)　5911-5911　2020/11/20

    DOI： 10.1038/s41467-020-19593-0 　

    More details Close

    Transcriptional dysregulation, which can be caused by genetic and epigenetic alterations, is a fundamental feature of many cancers. A key cytoprotective transcriptional activator, NRF2, is often aberrantly activated in non-small cell lung cancers (NSCLCs) and supports both aggressive tumorigenesis and therapeutic resistance. Herein, we find that persistently activated NRF2 in NSCLCs generates enhancers at gene loci that are not normally regulated by transiently activated NRF2 under physiological conditions. Elevated accumulation of CEBPB in NRF2-activated NSCLCs is found to be one of the prerequisites for establishment of the unique NRF2-dependent enhancers, among which the NOTCH3 enhancer is shown to be critical for promotion of tumor-initiating activity. Enhancer remodeling mediated by NRF2-CEBPB cooperativity promotes tumor-initiating activity and drives malignancy of NRF2-activated NSCLCs via establishment of the NRF2-NOTCH3 regulatory axis.

  33. A genotype imputation method for de-identified haplotype reference information by using recurrent neural network

    Kaname Kojima, Shu Tadaka, Fumiki Katsuoka, Gen Tamiya, Masayuki Yamamoto, Kengo Kinoshita

    PLOS Computational Biology　16　(10)　e1008207-e1008207　2020/10/01

    Publisher: Public Library of Science (PLoS)

    DOI： 10.1371/journal.pcbi.1008207 　

    eISSN： 1553-7358

  34. Novel candidates of pathogenic variants of the BRCA1 and BRCA2 genes in a 3,552 Japanese whole-genome sequence dataset (3.5KJPNv2) Peer-reviewed

    Hideki Tokunaga, Keita Iida, Atsushi Hozawa, Soichi Ogishima, Yoh Watanabe, Shogo Shigeta, Muneaki Shimada, Yumi Yamaguchi-Kabata, Shu Tadaka, Fumiki Katsuoka, Shin Ito, Kazuki Kumada, Yohei Hamanaka, Nobuo Fuse, Kengo Kinoshita, Masayuki Yamamoto, Nobuo Yaegashi, Jun Yasuda

    2020/07/17

    Publisher: Cold Spring Harbor Laboratory

    DOI： 10.1101/2020.07.17.208454 　

    More details Close

    <title>Abstract</title>Identification of pathogenic germline variants yet no clinical evidence in <italic>BRCA</italic> genes has become important in patient care of hereditary breast and ovarian cancer syndrome (HBOC). Computational scoring and prospective cohort studies may help to identify such pathogenic variants. We annotated the variants in the <italic>BRCA1</italic> and <italic>BRCA2</italic> genes from a dataset of 3,552 whole-genome sequences obtained from members of the genome cohorts by Tohoku Medical Megabank Project (TMM) with the InterVar software. Computational impact scores (CADD_phred and Eigen_raw) and minor allele frequencies (MAF) of pathogenic (P) and likely pathogenic (LP) variants in ClinVar are used for filtration criteria. Familial predispositions in cancers among the 35,000 TMM genome cohort participants are analyzed to verify the pathogenicity. Seven potentially pathogenic variants were newly identified. Carriers of these potential pathogenic variants and definite P and LP variants among participants of the TMM prospective cohort show a statistically significant preponderance in cancer onset in sisters in the self-reported cancer history. Filtering by computational scoring and MAF is useful to identify potential pathogenic variants in <italic>BRCA</italic> genes for Japanese population. These results will be helpful to follow up the carriers of variants of uncertain significance in the HBOC genes.

  35. Pathogenic mutations identified by a multimodality approach in 117 Japanese Fanconi anemia patients. International-journal Peer-reviewed

    Minako Mori, Asuka Hira, Kenichi Yoshida, Hideki Muramatsu, Yusuke Okuno, Yuichi Shiraishi, Michiko Anmae, Jun Yasuda, Shu Tadaka, Kengo Kinoshita, Tomoo Osumi, Yasushi Noguchi, Souichi Adachi, Ryoji Kobayashi, Hiroshi Kawabata, Kohsuke Imai, Tomohiro Morio, Kazuo Tamura, Akifumi Takaori-Kondo, Masayuki Yamamoto, Satoru Miyano, Seiji Kojima, Etsuro Ito, Seishi Ogawa, Keitaro Matsuo, Hiromasa Yabe, Miharu Yabe, Minoru Takata

    Haematologica　105　(4)　1166-1167　2020/04

    DOI： 10.3324/haematol.2019.245720 　

  36. Construction and Integration of Three De Novo Japanese Human Genome Assemblies toward a Population-Specific Reference Peer-reviewed

    Jun Takayama, Shu Tadaka, Kenji Yano, Fumiki Katsuoka, Chinatsu Gocho, Takamitsu Funayama, Satoshi Makino, Yasunobu Okamura, Atsuo Kikuchi, Junko Kawashima, Akihito Otsuki, Jun Yasuda, Shigeo Kure, Kengo Kinoshita, Masayuki Yamamoto, Gen Tamiya

    2019/12/02

    Publisher: Cold Spring Harbor Laboratory

    DOI： 10.1101/861658 　

    More details Close

    <title>ABSTRACT</title>The complete sequence of the human genome is used as a reference for next-generation sequencing analyses. However, some ethnic ancestries are under-represented in the international human reference genome (e.g., GRCh37), especially Asian populations, due to a strong bias toward European and African ancestries in a single mosaic haploid genome consisting chiefly of a single donor. Here, we performed <italic>de novo</italic> assembly of the genomes from three Japanese male individuals using &gt;100× PacBio long reads and Bionano optical maps per sample. We integrated the genomes using the major allele for consensus, and anchored the scaffolds using sequence-tagged site markers from conventional genetic and radiation hybrid maps to reconstruct each chromosome sequence. The resulting genome sequence, designated JG1, is highly contiguous, accurate, and carries the major allele in the majority of single nucleotide variant sites for a Japanese population. We adopted JG1 as the reference for confirmatory exome re-analyses of seven Japanese families with rare diseases and found that re-analysis using JG1 reduced false-positive variant calls versus GRCh37 while retaining disease-causing variants. These results suggest that integrating multiple genome assemblies from a single ethnic population can aid next-generation sequencing analyses of individuals originated from the population.

  37. Pathogenic mutations identified by a multimodality approach in 117 Japanese Fanconi anemia patients. International-journal Peer-reviewed

    Minako Mori, Asuka Hira, Kenichi Yoshida, Hideki Muramatsu, Yusuke Okuno, Yuichi Shiraishi, Michiko Anmae, Jun Yasuda, Shu Tadaka, Kengo Kinoshita, Tomoo Osumi, Yasushi Noguchi, Souichi Adachi, Ryoji Kobayashi, Hiroshi Kawabata, Kohsuke Imai, Tomohiro Morio, Kazuo Tamura, Akifumi Takaori-Kondo, Masayuki Yamamoto, Satoru Miyano, Seiji Kojima, Etsuro Ito, Seishi Ogawa, Keitaro Matsuo, Hiromasa Yabe, Miharu Yabe, Minoru Takata

    Haematologica　104　(10)　1962-1973　2019/10

    Publisher: Ferrata Storti Foundation (Haematologica)

    DOI： 10.3324/haematol.2018.207241 　

    ISSN： 0390-6078

    More details Close

    Fanconi anemia is a rare recessive disease characterized by multiple congenital abnormalities, progressive bone marrow failure, and a predisposition to malignancies. It results from mutations in one of the 22 known FANC genes. The number of Japanese Fanconi anemia patients with a defined genetic diagnosis was relatively limited. In this study, we reveal the genetic subtyping and the characteristics of mutated FANC genes in Japan and clarify the genotype-phenotype correlations. We studied 117 Japanese patients and successfully subtyped 97% of the cases. FANCA and FANCG pathogenic variants accounted for the disease in 58% and 25% of Fanconi anemia patients, respectively. We identified one FANCA and two FANCG hot spot mutations, which are found at low percentages (0.04-0.1%) in the whole-genome reference panel of 3,554 Japanese individuals (Tohoku Medical Megabank). FANCB was the third most common complementation group and only one FANCC case was identified in our series. Based on the data from the Tohoku Medical Megabank, we estimate that approximately 2.6% of Japanese are carriers of disease-causing FANC gene variants, excluding missense mutations. This is the largest series of subtyped Japanese Fanconi anemia patients to date and the results will be useful for future clinical management.

  38. コホート調査における代謝プロファイルの経時変化の解析

    小柴 生造, 元池 育子, 三枝 大輔, 井上 仁, 菱沼 英史, 青木 裕一, 田高 周, 城田 松之, 木下 賢吾, 山本 雅之

    日本生化学会大会プログラム・講演要旨集　92回　[1T12a-04]　2019/09

    Publisher: (公社)日本生化学会

  39. Estimating carrier frequencies of newborn screening disorders using a whole-genome reference panel of 3552 Japanese individuals. International-journal Peer-reviewed

    Yumi Yamaguchi-Kabata, Jun Yasuda, Akira Uruno, Kazuro Shimokawa, Seizo Koshiba, Yoichi Suzuki, Nobuo Fuse, Hiroshi Kawame, Shu Tadaka, Masao Nagasaki, Kaname Kojima, Fumiki Katsuoka, Kazuki Kumada, Osamu Tanabe, Gen Tamiya, Nobuo Yaegashi, Kengo Kinoshita, Masayuki Yamamoto, Shigeo Kure

    Human genetics　138　(4)　389-409　2019/03

    DOI： 10.1007/s00439-019-01998-7 　

    More details Close

    Incidence rates of Mendelian diseases vary among ethnic groups, and frequencies of variant types of causative genes also vary among human populations. In this study, we examined to what extent we can predict population frequencies of recessive disorders from genomic data, and explored better strategies for variant interpretation and classification. We used a whole-genome reference panel from 3552 general Japanese individuals constructed by the Tohoku Medical Megabank Organization (ToMMo). Focusing on 32 genes for 17 congenital metabolic disorders included in newborn screening (NBS) in Japan, we identified reported and predicted pathogenic variants through variant annotation, interpretation, and multiple ways of classifications. The estimated carrier frequencies were compared with those from the Japanese NBS data based on 1,949,987 newborns from a previous study. The estimated carrier frequency based on genomic data with a recent guideline of variant interpretation for the PAH gene, in which defects cause hyperphenylalaninemia (HPA) and phenylketonuria (PKU), provided a closer estimate to that by the observed incidence than the other methods. In contrast, the estimated carrier frequencies for SLC25A13, which causes citrin deficiency, were much higher compared with the incidence rate. The results varied greatly among the 11 NBS diseases with single responsible genes; the possible reasons for departures from the carrier frequencies by reported incidence rates were discussed. Of note, (1) the number of pathogenic variants increases by including additional lines of evidence, (2) common variants with mild effects also contribute to the actual frequency of patients, and (3) penetrance of each variant remains unclear.

  40. Genome analyses for the Tohoku Medical Megabank Project towards establishment of personalized healthcare. International-journal Peer-reviewed

    Jun Yasuda, Kengo Kinoshita, Fumiki Katsuoka, Inaho Danjoh, Mika Sakurai-Yageta, Ikuko N Motoike, Yoko Kuroki, Sakae Saito, Kaname Kojima, Matsuyuki Shirota, Daisuke Saigusa, Akihito Otsuki, Junko Kawashima, Yumi Yamaguchi-Kabata, Shu Tadaka, Yuichi Aoki, Takahiro Mimori, Kazuki Kumada, Jin Inoue, Satoshi Makino, Miho Kuriki, Nobuo Fuse, Seizo Koshiba, Osamu Tanabe, Masao Nagasaki, Gen Tamiya, Ritsuko Shimizu, Takako Takai-Igarashi, Soichi Ogishima, Atsushi Hozawa, Shinichi Kuriyama, Junichi Sugawara, Akito Tsuboi, Hideyasu Kiyomoto, Tadashi Ishii, Hiroaki Tomita, Naoko Minegishi, Yoichi Suzuki, Kichiya Suzuki, Hiroshi Kawame, Hiroshi Tanaka, Yasuyuki Taki, Nobuo Yaegashi, Shigeo Kure, Fuji Nagami, Kenjiro Kosaki, Yoichi Sutoh, Tsuyoshi Hachiya, Atsushi Shimizu, Makoto Sasaki, Masayuki Yamamoto

    Journal of biochemistry　165　(2)　139-158　2019/02/01

    DOI： 10.1093/jb/mvy096 　

    ISSN： 0021-924X

    More details Close

    Personalized healthcare (PHC) based on an individual's genetic make-up is one of the most advanced, yet feasible, forms of medical care. The Tohoku Medical Megabank (TMM) Project aims to combine population genomics, medical genetics and prospective cohort studies to develop a critical infrastructure for the establishment of PHC. To date, a TMM CommCohort (adult general population) and a TMM BirThree Cohort (birth+three-generation families) have conducted recruitments and baseline surveys. Genome analyses as part of the TMM Project will aid in the development of a high-fidelity whole-genome Japanese reference panel, in designing custom single-nucleotide polymorphism (SNP) arrays specific to Japanese, and in estimation of the biological significance of genetic variations through linked investigations of the cohorts. Whole-genome sequencing from >3,500 unrelated Japanese and establishment of a Japanese reference genome sequence from long-read data have been done. We next aim to obtain genotype data for all TMM cohort participants (>150,000) using our custom SNP arrays. These data will help identify disease-associated genomic signatures in the Japanese population, while genomic data from TMM BirThree Cohort participants will be used to improve the reference genome panel. Follow-up of the cohort participants will allow us to test the genetic markers and, consequently, contribute to the realization of PHC.

  41. 3.5KJPNv2: an allele frequency panel of 3552 Japanese individuals including the X chromosome. International-journal Peer-reviewed

    Shu Tadaka, Fumiki Katsuoka, Masao Ueki, Kaname Kojima, Satoshi Makino, Sakae Saito, Akihito Otsuki, Chinatsu Gocho, Mika Sakurai-Yageta, Inaho Danjoh, Ikuko N Motoike, Yumi Yamaguchi-Kabata, Matsuyuki Shirota, Seizo Koshiba, Masao Nagasaki, Naoko Minegishi, Atsushi Hozawa, Shinichi Kuriyama, Atsushi Shimizu, Jun Yasuda, Nobuo Fuse, Gen Tamiya, Masayuki Yamamoto, Kengo Kinoshita

    Human genome variation　6　28-28　2019

    DOI： 10.1038/s41439-019-0059-5 　

    More details Close

    The first step towards realizing personalized healthcare is to catalog the genetic variations in a population. Since the dissemination of individual-level genomic information is strictly controlled, it will be useful to construct population-level allele frequency panels with easy-to-use interfaces. In the Tohoku Medical Megabank Project, we sequenced nearly 4000 individuals from a Japanese population and constructed an allele frequency panel of 3552 individuals after removing related samples. The panel is called the 3.5KJPNv2. It was constructed by using a standard pipeline including the 1KGP and gnomAD algorithms to reduce technical biases and to allow comparisons to other populations. Our database is the first large-scale panel providing the frequencies of variants present on the X chromosome and on the mitochondria in the Japanese population. All the data are available on our original database at https://jmorp.megabank.tohoku.ac.jp.

  42. 3.5KJPNv2: an allele frequency panel of 3552 Japanese individuals including the X chromosome. International-journal

    Shu Tadaka, Fumiki Katsuoka, Masao Ueki, Kaname Kojima, Satoshi Makino, Sakae Saito, Akihito Otsuki, Chinatsu Gocho, Mika Sakurai-Yageta, Inaho Danjoh, Ikuko N Motoike, Yumi Yamaguchi-Kabata, Matsuyuki Shirota, Seizo Koshiba, Masao Nagasaki, Naoko Minegishi, Atsushi Hozawa, Shinichi Kuriyama, Atsushi Shimizu, Jun Yasuda, Nobuo Fuse, Gen Tamiya, Masayuki Yamamoto, Kengo Kinoshita

    Human genome variation　6　28-28　2019

    Publisher: Cold Spring Harbor Laboratory

    DOI： 10.1038/s41439-019-0059-5 　

    More details Close

    The first step towards realizing personalized healthcare is to catalog the genetic variations in a population. Since the dissemination of individual-level genomic information is strictly controlled, it will be useful to construct population-level allele frequency panels with easy-to-use interfaces. In the Tohoku Medical Megabank Project, we sequenced nearly 4000 individuals from a Japanese population and constructed an allele frequency panel of 3552 individuals after removing related samples. The panel is called the 3.5KJPNv2. It was constructed by using a standard pipeline including the 1KGP and gnomAD algorithms to reduce technical biases and to allow comparisons to other populations. Our database is the first large-scale panel providing the frequencies of variants present on the X chromosome and on the mitochondria in the Japanese population. All the data are available on our original database at https://jmorp.megabank.tohoku.ac.jp.

  43. COXPRESdb v7: a gene coexpression database for 11 animal species supported by 23 coexpression platforms for technical evaluation and evolutionary inference Peer-reviewed

    Takeshi Obayashi, Yuki Kagaya, Yuichi Aoki, Shu Tadaka, Kengo Kinoshita

    Nucleic Acids Research　2018/11

    Publisher: Oxford University Press ({OUP})

    DOI： 10.1093/nar/gky1155 　

    ISSN： 0305-1048

  44. メタボロームGWASによる日本人の代謝プロファイルの解析

    小柴 生造, 元池 育子, 三枝 大輔, 井上 仁, 青木 裕一, 田高 周, 城田 松之, 木下 賢吾, 山本 雅之

    日本生化学会大会プログラム・講演要旨集　91回　[3T14a-314)]　2018/09

    Publisher: (公社)日本生化学会

  45. Regional genetic differences among Japanese populations and performance of genotype imputation using whole-genome reference panel of the Tohoku Medical Megabank Project. International-journal Peer-reviewed

    Jun Yasuda, Fumiki Katsuoka, Inaho Danjoh, Yosuke Kawai, Kaname Kojima, Masao Nagasaki, Sakae Saito, Yumi Yamaguchi-Kabata, Shu Tadaka, Ikuko N Motoike, Kazuki Kumada, Mika Sakurai-Yageta, Osamu Tanabe, Nobuo Fuse, Gen Tamiya, Koichiro Higasa, Fumihiko Matsuda, Nobufumi Yasuda, Motoki Iwasaki, Makoto Sasaki, Atsushi Shimizu, Kengo Kinoshita, Masayuki Yamamoto

    BMC genomics　19　(1)　551-551　2018/07/24

    Publisher: Springer Nature

    DOI： 10.1186/s12864-018-4942-0 　

    ISSN： 1471-2164

    More details Close

    BACKGROUND: Genotype imputation from single-nucleotide polymorphism (SNP) genotype data using a haplotype reference panel consisting of thousands of unrelated individuals from populations of interest can help to identify strongly associated variants in genome-wide association studies. The Tohoku Medical Megabank (TMM) project was established to support the development of precision medicine, together with the whole-genome sequencing of 1070 human genomes from individuals in the Miyagi region (Northeast Japan) and the construction of the 1070 Japanese genome reference panel (1KJPN). Here, we investigated the performance of 1KJPN for genotype imputation of Japanese samples not included in the TMM project and compared it with other population reference panels. RESULTS: We found that the 1KJPN population was more similar to other Japanese populations, Nagahama (south-central Japan) and Aki (Shikoku Island), than to East Asian populations in the 1000 Genomes Project other than JPT, suggesting that the large-scale collection (more than 1000) of Japanese genomes from the Miyagi region covered many of the genetic variations of Japanese in mainland Japan. Moreover, 1KJPN outperformed the phase 3 reference panel of the 1000 Genomes Project (1KGPp3) for Japanese samples, and IKJPN showed similar imputation rates for the TMM and other Japanese samples for SNPs with minor allele frequencies (MAFs) higher than 1%. CONCLUSIONS: 1KJPN covered most of the variants found in the samples from areas of the Japanese mainland outside the Miyagi region, implying 1KJPN is representative of the Japanese population's genomes. 1KJPN and successive reference panels are useful genome reference panels for the mainland Japanese population. Importantly, the addition of whole genome sequences not included in the 1KJPN panel improved imputation efficiencies for SNPs with MAFs under 1% for samples from most regions of the Japanese archipelago.

  46. ゲノミクスを基盤とした生活習慣病解析最前線 ゲノム情報と連携した日本人多層オミックス参照パネルの意義

    小柴 生造, 元池 育子, 三枝 大輔, 井上 仁, 城田 松之, 青木 裕一, 田高 周, 斎藤 智, 木下 賢吾, 山本 雅之

    糖尿病　61　(Suppl.1)　S-48　2018/04

    Publisher: (一社)日本糖尿病学会

    ISSN： 0021-437X

    eISSN： 1881-588X

  47. jMorp: Japanese Multi Omics Reference Panel. International-journal Peer-reviewed

    Shu Tadaka, Daisuke Saigusa, Ikuko N Motoike, Jin Inoue, Yuichi Aoki, Matsuyuki Shirota, Seizo Koshiba, Masayuki Yamamoto, Kengo Kinoshita

    Nucleic acids research　46　(D1)　D551-D557　2018/01/04

    Publisher: Oxford University Press ({OUP})

    DOI： 10.1093/nar/gkx978 　

    ISSN： 0305-1048

    More details Close

    We developed jMorp, a new database containing metabolome and proteome data for plasma obtained from >5000 healthy Japanese volunteers from the Tohoku Medical Megabank Cohort Study, which is available at https://jmorp.megabank.tohoku.ac.jp. Metabolome data were measured by proton nuclear magnetic resonance (NMR) and liquid chromatography-mass spectrometry (LC-MS), while proteome data were obtained by nanoLC-MS. We released the concentration distributions of 37 metabolites identified by NMR, distributions of peak intensities of 257 characterized metabolites by LC-MS, and observed frequencies of 256 abundant proteins. Additionally, correlation networks for the metabolites can be observed using an interactive network viewer. Compared with some existing databases, jMorp has some unique features: (i) Metabolome data were obtained using a single protocol in a single institute, ensuring that measurement biases were significantly minimized; (ii) The database contains large-scale data for healthy volunteers with various health records and genome data and (iii) Correlations between metabolites can be easily observed using the graphical viewer. Metabolites data are becoming important intermediate markers for evaluating the health states of humans, and thus jMorp is an outstanding resource for a wide range of researchers, particularly those in the fields of medical science, applied molecular biology, and biochemistry.

  48. ATTED-II in 2018: A Plant Coexpression Database Based on Investigation of the Statistical Property of the Mutual Rank Index Peer-reviewed

    Takeshi Obayashi, Yuichi Aoki, Shu Tadaka, Yuki Kagaya, Kengo Kinoshita

    Plant and Cell Physiology　59　(2)　440　2018/01

    Publisher: Oxford University Press ({OUP})

    DOI： 10.1093/pcp/pcx209 　

    ISSN： 0032-0781

  49. ATTED-II in 2018: A Plant Coexpression Database Based on Investigation of the Statistical Property of the Mutual Rank Index Peer-reviewed

    Takeshi Obayashi, Yuichi Aoki, Shu Tadaka, Yuki Kagaya, Kengo Kinoshita

    Plant and Cell Physiology　59　(1)　e3　2017

    Publisher: Oxford University Press ({OUP})

    DOI： 10.1093/pcp/pcx191 　

    ISSN： 0032-0781

  50. NCMine: Core-peripheral based functional module detection using near-clique mining Peer-reviewed

    Shu Tadaka, Kengo Kinoshita

    BIOINFORMATICS　32　(22)　3454-3460　2016/11

    DOI： 10.1093/bioinformatics/btw488 　

    ISSN： 1367-4803

    eISSN： 1460-2059

  51. ATTED-II in 2016: A Plant Coexpression Database Towards Lineage-Specific Coexpression Peer-reviewed

    Yuichi Aoki, Yasunobu Okamura, Shu Tadaka, Kengo Kinoshita, Takeshi Obayashi

    PLANT AND CELL PHYSIOLOGY　57　(1)　e5　2016/01

    DOI： 10.1093/pcp/pcv165 　

    ISSN： 0032-0781

    eISSN： 1471-9053

  52. COXPRESdb in 2015: Coexpression database for animal species by DNA-microarray and RNAseq-based expression data with multiple quality assessment systems Peer-reviewed

    Yasunobu Okamura, Yuichi Aoki, Takeshi Obayashi, Shu Tadaka, Satoshi Ito, Takafumi Narise, Kengo Kinoshita

    Nucleic Acids Research　43　(1)　D82-D86　2015/01/28

    Publisher: Oxford University Press

    DOI： 10.1093/nar/gku1163 　

    ISSN： 1362-4962 0305-1048

  53. COXPRESdb in 2015: coexpression database for animal species by DNA-microarray and RNAseq-based expression data with multiple quality assessment systems Peer-reviewed

    Yasunobu Okamura, Yuichi Aoki, Takeshi Obayashi, Shu Tadaka, Satoshi Ito, Takafumi Narise, Kengo Kinoshita

    NUCLEIC ACIDS RESEARCH　43　(D1)　D82-D86　2015/01

    DOI： 10.1093/nar/gku1163 　

    ISSN： 0305-1048

    eISSN： 1362-4962

  54. BioHackathon series in 2011 and 2012: penetration of ontology and linked data in life science domains Peer-reviewed

    Toshiaki Katayama, Mark D. Wilkinson, Kiyoko F. Aoki-Kinoshita, Shuichi Kawashima, Yasunori Yamamoto, Atsuko Yamaguchi, Shinobu Okamoto, Shin Kawano, Jin-Dong Kim, Yue Wang, Hongyan Wu, Yoshinobu Kano, Hiromasa Ono, Hidemasa Bono, Simon Kocbek, Jan Aerts, Yukie Akune, Erick Antezana, Kazuharu Arakawa, Bruno Aranda, Joachim Baran, Jerven Bolleman, Raoul J. P. Bonnal, Pier Luigi Buttigieg, Matthew P. Campbell, Yi-an Chen, Hirokazu Chiba, Peter J. A. Cock, K. Bretonnel Cohen, Alexandru Constantin, Geraint Duck, Michel Dumontier, Takatomo Fujisawa, Toyofumi Fujiwara, Naohisa Goto, Robert Hoehndorf, Yoshinobu Igarashi, Hidetoshi Itaya, Maori Ito, Wataru Iwasaki, Matus Kalas, Takeo Katoda, Taehong Kim, Anna Kokubu, Yusuke Komiyama, Masaaki Kotera, Camille Laibe, Hilmar Lapp, Thomas Luetteke, M. Scott Marshall, Takaaki Mori, Hiroshi Mori, Mizuki Morita, Katsuhiko Murakami, Mitsuteru Nakao, Hisashi Narimatsu, Hiroyo Nishide, Yosuke Nishimura, Johan Nystrom-Persson, Soichi Ogishima, Yasunobu Okamura, Shujiro Okuda, Kazuki Oshita, Nicki H. Packer, Pjotr Prins, Rene Ranzinger, Philippe Rocca-Serra, Susanna Sansone, Hiromichi Sawaki, Sung-Ho Shin, Andrea Splendiani, Francesco Strozzi, Shu Tadaka, Philip Toukach, Ikuo Uchiyama, Masahito Umezaki, Rutger Vos, Patricia L. Whetzel, Issaku Yamada, Chisato Yamasaki, Riu Yamashita, William S. York, Christian M. Zmasek, Shoko Kawamoto, Toshihisa Takagi

    JOURNAL OF BIOMEDICAL SEMANTICS　5　(1)　5　2014/02

    DOI： 10.1186/2041-1480-5-5 　

    ISSN： 2041-1480

  55. ATTED-II in 2014: evaluation of gene coexpression in agriculturally important plants. Peer-reviewed

    Obayashi T, Okamura Y, Ito S, Tadaka S, Aoki Y, Shirota M, Kinoshita K

    Plant & cell physiology　55　(1)　e6　2014/01

    DOI： 10.1093/pcp/pct178 　

    ISSN： 0032-0781

  56. ATTED-II in 2014: Evaluation of gene coexpression in agriculturally important plants Peer-reviewed

    Takeshi Obayashi, Yasunobu Okamura, Satoshi Ito, Shu Tadaka, Yuichi Aoki, Matsuyuki Shirota, Kengo Kinoshita

    Plant and Cell Physiology　55　(1)　e6　2014/01

    Publisher: Oxford University Press ({OUP})

    DOI： 10.1093/pcp/pct178 　

    ISSN： 0032-0781 1471-9053

  57. COXPRESdb: a database of comparative gene coexpression networks of eleven species for mammals Peer-reviewed

    Takeshi Obayashi, Yasunobu Okamura, Satoshi Ito, Shu Tadaka, Ikuko N. Motoike, Kengo Kinoshita

    NUCLEIC ACIDS RESEARCH　41　(D1)　D1014-D1020　2013/01

    DOI： 10.1093/nar/gks1014 　

    ISSN： 0305-1048

Show all ︎Show first 5

Misc. 12

  1. Functional characterization of 27 CYP2E1 variants identified in 8,380 Japanese indivisuals

    大森悠生, 菱沼英史, 菱沼英史, 上田昭子, 山崎柊紀, 鈴木祐眞, 佐藤裕, 仲吉朝希, 小田彰史, 斎藤さかえ, 斎藤さかえ, 田高周, 木下賢吾, 木下賢吾, 木下賢吾, 平澤典保, 平澤典保, 平澤典保, 平塚真弘, 平塚真弘, 平塚真弘, 平塚真弘

    日本薬学会年会要旨集(Web)　144th　2024

    ISSN： 0918-9823

  2. Functional characterization of 27 DPD variants identified in 8,380 Japanese individuals

    寺内健人, 菱沼英史, 菱沼英史, 上田昭子, 小渕開, 前川正充, 前川正充, 佐藤裕, 齋藤さかえ, 齋藤さかえ, 田高周, 木下賢吾, 木下賢吾, 木下賢吾, 平澤典保, 平澤典保, 平澤典保, 平塚真弘, 平塚真弘, 平塚真弘, 平塚真弘

    日本薬学会年会要旨集(Web)　144th　2024

    ISSN： 0918-9823

  3. 出生三世代コホートにおける7人家族のエピゲノム研究基盤構築

    美辺 詩織, 小巻 翔平, 大桃 秀樹, 高嶋 聰, 小野 加奈子, 山崎 弥生, 須藤 洋一, 田高 周, 水野 聖士, 石黒 真美, 工藤 久智, 小原 拓, 熊田 和貴, 勝岡 史城, 荻島 創一, 木下 賢吾, 菅原 準一, 栗山 進一, 清水 厚志

    日本抗加齢医学会総会プログラム・抄録集　23回　252-252　2023/06

    Publisher: (一社)日本抗加齢医学会

  4. 血中代謝プロファイルに遺伝・環境要因が与える影響の解析

    小柴生造, 小柴生造, 元池育子, 元池育子, 菱沼英史, 菱沼英史, 青木裕一, 櫻井美由紀, 佐藤允治, 七谷圭, 七谷圭, 田高周, 木下賢吾, 木下賢吾, 木下賢吾, 山本雅之, 山本雅之, 山本雅之

    日本生化学会大会(Web)　96th　2023

  5. Functional characterization of CYP2B6 rare variants identified in 8,380 Japanese individuals

    山崎柊紀, 菱沼英史, 菱沼英史, 上田昭子, 前川正充, 前川正充, 前川正充, 佐藤裕, 公文代將希, 眞野成康, 眞野成康, 仲吉朝希, 小田彰史, 齋藤さかえ, 齋藤さかえ, 田高周, 田高周, 木下賢吾, 木下賢吾, 木下賢吾, 平澤典保, 平澤典保, 平澤典保, 平塚真弘, 平塚真弘, 平塚真弘, 平塚真弘

    日本薬学会年会要旨集(Web)　143rd　2023

    ISSN： 0918-9823

  6. 大規模ゲノム解析データを活用した日本人DPD活性予測パネルの構築

    菱沼英史, 菱沼英史, 小渕開, 寺内健人, 上田昭子, 田高周, 齋藤さかえ, 前川正充, 木下賢吾, 平澤典保, 平塚真弘, 齋藤さかえ, 前川正充, 木下賢吾, 平澤典保, 平塚真弘, 平澤典保, 平塚真弘, 平塚真弘

    日本薬学会東北支部大会講演要旨集　62nd　2023

  7. バイオバンク情報を活用した40種のCYP3A4バリアントにおける機能変化解析

    平塚真弘, 平塚真弘, 平塚真弘, 平塚真弘, 公文代將希, 公文代將希, GUTIERREZ Evelyn, 菱沼英史, 菱沼英史, 上田昭子, 齋藤さかえ, 齋藤さかえ, 三枝大輔, 三枝大輔, 田高周, 木下賢吾, 木下賢吾, 仲吉朝希, 小田彰史, 前川正充, 眞野成康, 平澤典保, 平澤典保, 平澤典保

    日本人類遺伝学会大会(CD-ROM)　66th　2021

  8. 代謝プロファイルに影響を与える遺伝要因の網羅的解析

    小柴生造, 小柴生造, 小柴生造, 元池育子, 元池育子, 三枝大輔, 三枝大輔, 井上仁, 井上仁, 井上仁, 菱沼英史, 青木裕一, 青木裕一, 田高周, 田高周, 城田松之, 城田松之, 城田松之, 木下賢吾, 木下賢吾, 木下賢吾, 山本雅之, 山本雅之, 山本雅之

    日本生化学会大会(Web)　94th　2021

  9. 日本人4776人の全ゲノム解析により同定された18種のCYP3A4遺伝子多型に由来するバリアント酵素の機能変化解析

    公文代將希, GUTIERREZ Evelyn, 菱沼英史, 菱沼英史, 齋藤さかえ, 田高周, 木下賢吾, 前川正充, 前川正充, 三枝大輔, 三枝大輔, 仲吉朝希, 小田彰史, 平澤典保, 平澤典保, 平澤典保, 平塚真弘, 平塚真弘, 平塚真弘, 平塚真弘

    臨床薬理　51　(Supplement)　2020

    ISSN： 0388-1601

  10. Metabolome Analysis of Human Plasma by GC-MS/MS in a Large-scale Cohort

    三枝大輔, 三枝大輔, 松川直美, 松川直美, 田高周, 田高周, 元池育子, 元池育子, 小柴生造, 小柴生造

    日本プロテオーム学会誌(Web)　4　(1)　2019

    ISSN： 2432-2776

  11. ゲノム情報と連携した日本人多層オミックス参照パネルの意義

    小柴生造, 小柴生造, 元池育子, 元池育子, 三枝大輔, 三枝大輔, 井上仁, 井上仁, 城田松之, 城田松之, 青木裕一, 青木裕一, 田高周, 田高周, 斎藤智, 木下賢吾, 木下賢吾, 山本雅之, 山本雅之

    糖尿病(Web)　61　(Suppl)　2018

    ISSN： 1881-588X

  12. Identification of functional modules in protein networks by near-clique detection

    2013　(4)　1-2　2013/03/14

Show all ︎Show first 5

Books and Other Publications 1

  1. バリアントデータ検索&活用 : 変異・多型情報を使いこなす達人レシピ

    坊農, 秀雅

    羊土社　2020/10

    ISBN: 9784758122450

Research Projects 2

  1. 網膜層厚と遺伝環境因子による孤発性晩期発症型アルツハイマー病前臨床期診断法の確立

    平良 摩紀子, 布施 昇男, 川崎 良, 三木 篤也, 小島 要, 田高 周

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 東北大学

    2021/04/01 - 2024/03/31

  2. Preparation and Application of Y chromosome Panel using BirThree Cohort Men

    Suzuki Kichiya

    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

    More details Close

    More than 10% of the causes of infertility are considered to be male factors, and genomic abnormalities are attracting attention as one of the causes. The purpose of this study was to construct a reference panel related to fertility based on the genomic basis cultivated so far. A reference panel derived from a male with fertility was created from the whole genome data held by the Tohoku Medical Megabank Organization, and the whole genome data obtained from 17 semen samples of male infertility patients was used for the subsequent analysis. However, in the end, 180K SNPs were detected, and 11K of AF>0.8 were detected. This result will be an important platform for the genome analysis of male infertility in the future.