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Dissecting the role of retroelements and their variations in autoimmune diseases

Research Project

Project/Area Number 21K19501
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 54:Internal medicine of the bio-information integration and related fields
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Kochi Yuta  東京医科歯科大学, 難治疾患研究所, 教授 (60415156)

Project Period (FY) 2021-07-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords自己免疫疾患 / ゲノムワイド関連解析 / ロングリードシークエンシング / レトロエレメント / 自然免疫刺激
Outline of Research at the Start

ゲノムワイド関連解析で多くの自己免疫疾患感受性遺伝子が明らかになったが、本研究では残された遺伝因子として内在性レトロエレメント配列の遺伝子多型に注目する。ロングリードシークエンス技術を用いて、日本人の不死化B細胞株における全ゲノムシークエンス(WG-seq)および網羅的発現解析(RNA-seq)を行う。これによって発現量に個人差をみとめるレトロエレメントRNAおよびその発現量を制御する遺伝子多型を網羅的に明らかにする。また、これらのレトロエレメント多型を関節リウマチ、全身性エリテマトーデス、炎症性筋炎でジェノタイピングし、自己免疫疾患発症に関わる多型を同定する。

Outline of Final Research Achievements

We aimed to clarify the role of retroelements in autoimmune diseases. First, we catalogued retroelement variations by long-read whole genome sequencing of Japanese B cell lines (n=27). We also performed Long-read RNA-seq of IFN-α-stimulated B cell lines and generated a catalog of 163,747 RNAs. Approximately 80% were novel RNAs, some of which were transcribed from unannotated loci including retroelements. We also identified genetic variations affecting the expression of these RNAs. We then integrated these data with genome-wide association study data and comprehensively identified those involved in autoimmune diseases.

Academic Significance and Societal Importance of the Research Achievements

本研究は、いまだ全貌が明らかになっていない自己免疫疾患の病因メカニズムについて、ゲノム上の未開拓領域であるレトロエレメントから迫るものである。本研究では、自己免疫疾患に関わるレトロエレメント由来のRNAを網羅的に明らかにしたが、これらの解析によって整備されたRNAカタログは、自己免疫疾患以外の様々な疾患の病因解明につながる貴重なリソースになると考えられる。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (2 results) (of which Invited: 2 results)

  • [Journal Article] Multi-ancestry genome-wide association analyses identify novel genetic mechanisms in rheumatoid arthritis2022

    • Author(s)
      Ishigaki K, Sakaue S, Terao C, Luo Y, Sonehara KvYamaguchi K, Amariuta T, Too CL, Laufer VA, Scott IC, Viatte S, Takahashi M, Ohmura K, Murasawa A, Hashimoto M, Ito H, ..., Okada Y et al.
    • Journal Title

      Nature Genetics

      Volume: 54 Issue: 11 Pages: 1640-1651

    • DOI

      10.1038/s41588-022-01213-w

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Splicing QTL analysis focusing on coding sequences reveals mechanisms for disease susceptibility loci2022

    • Author(s)
      Yamaguchi Kensuke、Ishigaki Kazuyoshi、Suzuki Akari、Tsuchida Yumi、Tsuchiya Haruka、Sumitomo Shuji、Nagafuchi Yasuo、Miya Fuyuki、Tsunoda Tatsuhiko、Shoda Hirofumi、Fujio Keishi、Yamamoto Kazuhiko、Kochi Yuta
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 4659-4659

    • DOI

      10.1038/s41467-022-32358-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Utility of tissue-specific gene expression scores for gene prioritization in Mendelian diseases2022

    • Author(s)
      Kato Daiki、Mitsuhashi Satomi、Miya Fuyuki、Saitoh Shinji、Okamoto Nobuhiko、Tsunoda Tatsuhiko、Kochi Yuta
    • Journal Title

      Journal of Human Genetics

      Volume: 67 Issue: 12 Pages: 739-742

    • DOI

      10.1038/s10038-022-01071-8

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biological insights into systemic lupus erythematosus through an immune cell-specific transcriptome-wide association study2022

    • Author(s)
      Yin Xianyong、Kim Kwangwoo、Tsutomu Takeuchi, et al.
    • Journal Title

      Annals of the Rheumatic Diseases

      Volume: 81 Issue: 9 Pages: 1273-1280

    • DOI

      10.1136/annrheumdis-2022-222345

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immune cell multiomics analysis reveals contribution of oxidative phosphorylation to B-cell functions and organ damage of lupus2022

    • Author(s)
      Takeshima Yusuke、Iwasaki Yukiko、Nakano Masahiro、Narushima Yuta、Ota Mineto、Nagafuchi Yasuo、Sumitomo Shuji、Okamura Tomohisa、Elkon Keith、Ishigaki Kazuyoshi、Suzuki Akari、Kochi Yuta、Yamamoto Kazuhiko、Fujio Keishi
    • Journal Title

      Annals of the Rheumatic Diseases

      Volume: - Issue: 6 Pages: 845-853

    • DOI

      10.1136/annrheumdis-2021-221464

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Splicing QTL analysis focusing on coding sequences reveals pathogenicity of disease susceptibility loci2022

    • Author(s)
      Yamaguchi Kensuke、Ishigaki Kazuyoshi、Suzuki Akari、Tsuchida Yumi、Tsuchiya Haruka、Sumitomo Shuji、Nagafuchi Yasuo、Miya Fuyuki、Tsunoda Tatsuhiko、Hirofumi Shoda、Fujio Keishi、Yamamoto Kazuhiko、Kochi Yuta
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2021.12.30.474578

    • Related Report
      2021 Research-status Report
  • [Presentation] 多因子疾患におけるゲノム個別化医療2022

    • Author(s)
      高地雄太
    • Organizer
      第2回ゲノム医学研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] eQTL/sQTLから明らかにする多因子疾患の病態2021

    • Author(s)
      高地 雄太
    • Organizer
      日本オミックス医学会
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2021-07-13   Modified: 2024-01-30  

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