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2020 Fiscal Year Annual Research Report

Genetic analysis of neo-self

Planned Research

Project AreaCreation, function and structure of neo-self
Project/Area Number 16H06502
Research InstitutionTokai University

Principal Investigator

椎名 隆  東海大学, 医学部, 教授 (00317744)

Co-Investigator(Kenkyū-buntansha) 細道 一善  金沢大学, 医学系, 准教授 (50420948)
Project Period (FY) 2016-06-30 – 2021-03-31
Keywordsネオ・セルフ / HLA / 疾患感受性 / 遺伝子多型 / 遺伝子発現 / NGS / オミックス
Outline of Annual Research Achievements

特定のHLAアレルとの関連性が示されている疾患は100種以上に及ぶが、「なぜHLAと疾患が関連するのか?」という疑問は長年未解決のままである。本研究班では、HLAを中心とした免疫メカニズムの解明のために、ゲノム、遺伝子発現、転写調節、エピジェネティクスを網羅的・統合的に解析することで、HLAに起因するネオ・セルフ現象を可視化し、そのメカニズムの解明するための手法開発をすすめ、自己免疫性疾患や薬剤副作用における病態の解明を目目指している。本年度では、HLA 遺伝子12 座の転写レベルをアレル毎に検出するCapture RNA-Seq 法を開発した(Front. Immunol. 2020)。対象とする塩基配列が極めて多様性に富むという、通常のCapture法とは異なる技術的ハードルを克服し、検証実験からアレル依存性の転写レベルの差異を観察しており、HLA多型が転写量に影響を及ぼすことを実証した。その後、血液腫瘍症例についてNGS-SBTとCapture RNA-Seqを実施した結果、NGS-SBTで同定されたHLA遺伝子のヘテロ接合性の消失 (LOH) が、Capture RNA-Seqにおいても矛盾なく検出されたと共に、ナンセンス変異依存性mRNA分解機構 (NMD) やエピジェネティックス制御と考えられる転写抑制も新たに同定された(投稿準備中)。また、これまでに開発したHLA統合解析により、血栓性血小板減少性紫斑病におけるリスクアレルと自己抗原の同定(Blood. 2020)、再生不良性貧血(Haematologica. 2020、Blood. 2021)、円形脱毛症(EBioMedicine. 2020)の病態の解明をすすめ、薬剤副作用の無顆粒球症におけるHLAの関与を明らかとした(Pharmacogenomics J. 2021)。加えて、基盤情報となるヒトHLA遺伝子の多様性として、東アフリカ集団のHLA型とそれが形成された経緯を明らかとした(Eur J Hum Genet. 2021)。

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

  • Research Products

    (18 results)

All 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (12 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 12 results,  Open Access: 4 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Int'l Joint Research] スタンフォード大学(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      スタンフォード大学
  • [Int'l Joint Research] 西オーストラリア大学(オーストラリア)

    • Country Name
      AUSTRALIA
    • Counterpart Institution
      西オーストラリア大学
  • [Int'l Joint Research] 全インド医科大学(インド)

    • Country Name
      INDIA
    • Counterpart Institution
      全インド医科大学
  • [Journal Article] HLA class I allele-lacking leukocytes predict rare clonal evolution to MDS/AML in patients with acquired aplastic anemia2021

    • Author(s)
      Hosokawa Kohei、Hosomichi Kazuyoshi、Nakao Shinji et al.
    • Journal Title

      Blood

      Volume: Online ahead of print. Pages: -

    • DOI

      10.1182/blood.2020010586

    • Peer Reviewed
  • [Journal Article] Analysis of HLA gene polymorphisms in East Africans reveals evidence of gene flow in two Semitic populations from Sudan2021

    • Author(s)
      Aamer Waleed、Hassan Hisham Y.、Nakaoka Hirofumi、Hosomichi Kazuyoshi、Jaeger Martin、Tahir Hanan、Abdelraheem Mohammed H.、Netea Mihai G.、Inoue Ituro
    • Journal Title

      European Journal of Human Genetics

      Volume: Online ahead of print. Pages: -

    • DOI

      10.1038/s41431-021-00845-6

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] SNP-Density Crossover Maps of Polymorphic Transposable Elements and HLA Genes Within MHC Class I Haplotype Blocks and Junction2021

    • Author(s)
      Kulski Jerzy K.、Suzuki Shingo、Shiina Takashi
    • Journal Title

      Frontiers in Genetics

      Volume: 11 Pages: 594318

    • DOI

      10.3389/fgene.2020.594318

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] HLA-B*39:01:01 is a novel risk factor for antithyroid drug-induced agranulocytosis in Japanese population2020

    • Author(s)
      Nakakura Saya、Hosomichi Kazuyoshi、Uchino Shinya、Murakami Akiko、Oka Akira、Inoue Ituro、Nakaoka Hirofumi
    • Journal Title

      The Pharmacogenomics Journal

      Volume: 21 Pages: 94~101

    • DOI

      10.1038/s41397-020-00187-4

    • Peer Reviewed
  • [Journal Article] Novel and extended HLA class I and II alleles encountered in Kashmiri Brahmin population from North India2020

    • Author(s)
      Saxena Abhishweta、Suzuki Shingo、Mourya Manish、Shiina Takashi、Kanga Uma
    • Journal Title

      HLA

      Volume: 96 Pages: 487~489

    • DOI

      10.1111/tan.13997

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] HLA-DRB1 allele and autoantibody profiles in Japanese patients with inclusion body myositis2020

    • Author(s)
      Oyama Munenori、Ohnuki Yuko、Inoue Michio、Uruha Akinori、Yamashita Satoshi、Yutani Sachiko、Tanboon Jantima、Nakahara Jin、Suzuki Shingo、Shiina Takashi、Nishino Ichizo、Suzuki Shigeaki
    • Journal Title

      PLOS ONE

      Volume: 15 Pages: 0237890~0237890

    • DOI

      10.1371/journal.pone.0237890

    • Peer Reviewed / Open Access
  • [Journal Article] Identification of Novel Alleles and Structural Haplotypes of Major Histocompatibility Complex Class I and DRB Genes in Domestic Cat (Felis catus) by a Newly Developed NGS-Based Genotyping Method2020

    • Author(s)
      Okano Masaharu、Miyamae Jiro、Suzuki Shingo、Nishiya Kohei、Katakura Fumihiko、Kulski Jerzy K.、Moritomo Tadaaki、Shiina Takashi
    • Journal Title

      Frontiers in Genetics

      Volume: 11 Pages: 750

    • DOI

      10.3389/fgene.2020.00750

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Detection of 6pLOH in an aplastic anemia patient by in phase HLA genotyping2020

    • Author(s)
      Kikkawa Eri、Shiina Takashi、Shigenari Atsuko、Ozaki Yuki、Suzuki Shingo、Ando Kiyoshi、Onizuka Makoto
    • Journal Title

      HLA

      Volume: 95 Pages: 465~469

    • DOI

      10.1111/tan.13807

    • Peer Reviewed
  • [Journal Article] Capturing Differential Allele-Level Expression and Genotypes of All Classical HLA Loci and Haplotypes by a New Capture RNA-Seq Method2020

    • Author(s)
      Yamamoto Fumiko、Suzuki Shingo、Mizutani Akiko、Shigenari Atsuko、Ito Sayaka、Kametani Yoshie、Kato Shunichi、Fernandez-Vina Marcelo、Murata Makoto、Morishima Satoko、Morishima Yasuo、Tanaka Masafumi、Kulski Jerzy K.、Bahram Seiamak、Shiina Takashi
    • Journal Title

      Frontiers in Immunology

      Volume: 11 Pages: 941

    • DOI

      10.3389/fimmu.2020.00941

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Alopecia areata susceptibility variant in MHC region impacts expressions of genes contributing to hair keratinization and is involved in hair loss2020

    • Author(s)
      Oka Akira、Hosomichi Kazuyoshi、Ikeda Shigaku et al.
    • Journal Title

      EBioMedicine

      Volume: 57 Pages: 102810~102810

    • DOI

      10.1016/j.ebiom.2020.102810

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A frequent nonsense mutation in exon 1 across certain HLA-A and -B alleles in leukocytes of patients with acquired aplastic anemia2020

    • Author(s)
      Mizumaki Hiroki、Hosomichi Kazuyoshi、Nakao Shinji et al.
    • Journal Title

      Haematologica

      Volume: Online ahead of print. Pages: -

    • DOI

      10.3324/haematol.2020.247809

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] HLA loci predisposing to immune TTP in Japanese: potential role of the shared ADAMTS13 peptide bound to different HLA-DR2020

    • Author(s)
      Sakai Kazuya、Hosomichi Kazuyoshi、Matsumoto Masanori et al.
    • Journal Title

      Blood

      Volume: 135 Pages: 2413~2419

    • DOI

      10.1182/blood.2020005395

    • Peer Reviewed
  • [Presentation] ゲノム解析技術の革新と医学・医療へのインパクト2020

    • Author(s)
      細道 一善
    • Organizer
      第56回日本移植学会
    • Invited
  • [Presentation] MHCおよびKIR遺伝子群のNGS解析2020

    • Author(s)
      細道 一善
    • Organizer
      日本人類遺伝学会第65回大会
    • Invited
  • [Presentation] Clonal Hematopoiesis By HLA Class I Allele-Lacking Hematopoietic Stem Cells and Concomitant Aberrant Stem Cells Is Rarely Associated with Clonal Evolution to Secondary Myelodysplastic Syndrome and Acute Myeloid Leukemia in Patients with Acquired Aplastic Anemia2020

    • Author(s)
      Hosokawa K, Mizumaki H, Yoroidaka T, Maruyama H, Imi T, Tsuji N, Urushihara R, Tanabe M, Zaimoku Y, Nguyen MAT, Tran DC, Ishiyama K, Yamazaki H, Katagiri T, Hosomichi K, Tajima A, Azuma F, Ogawa S, Nakao S
    • Organizer
      62nd ASH Annual Meeting
    • Int'l Joint Research

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Published: 2021-12-27  

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