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Identification of novel pathogenic cells in rheumatoid arthritis based on the establishment of a novel RNAseq database

Research Project

Project/Area Number 21K16696
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionThe University of Tokyo

Principal Investigator

Matsuda Kotaro  東京大学, 大学院医学系研究科(医学部), 客員研究員 (00815540)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords関節リウマチ / シングルセル解析 / 遺伝子改変マウス / 自己免疫性関節炎 / 病原性細胞サブセット
Outline of Research at the Start

関節リウマチは患者数が最も多い自己免疫疾患のひとつであるが、その病態形成の全貌は明らかになっていない。近年、シングルセルRNA-seqによって関節リウマチの滑膜に集簇する多彩な細胞集団の知見が得られるようになった。しかし、関節リウマチの患者背景は多様であり、個々のデータベースは検体数が少ないため、統合・再構築することで真の病原性細胞を同定することが可能となる。本研究では、複数のデータベースを統合した申請者独自のデータベースを用いて、関節リウマチの新たな病原性遺伝子や病原性細胞の同定を目指す。

Outline of Final Research Achievements

Rheumatoid arthritis (RA) is considered one of the most prevalent autoimmune diseases; however, a comprehensive understanding of its pathogenesis remains elusive. Recent studies have provided insights into the diverse populations of cells clustering in the synovium of RA through the utilization of single-cell RNA sequencing. Nevertheless, the backgrounds of RA patients exhibit substantial diversity, and individual databases suffer from limitations in sample sizes. Consequently, the integration and reconstruction of these databases offer the potential to identify true pathogenic cells. In this study, we integrated multiple databases to extract genes and identified novel pathogenic genes of RA by inducing arthritis in knockout mice of those genes. The findings of this research provide valuable insights into novel subsets of pathogenic cells in RA.

Academic Significance and Societal Importance of the Research Achievements

関節リウマチは、生物学的製剤やJAK阻害剤など近年の薬物療法の進歩によって、臨床的寛解も達成できるようになってきたが、未だに治療困難例が存在する。また、病態形成や治療抵抗性に関わる遺伝子の全貌は明らかになっていない。本研究では、複数のデータベースを統合して関節リウマチの病原性遺伝子の候補群を抽出し、それらの遺伝子のノックアウトマウスに関節炎を誘導することで、当該遺伝子の自己免疫性関節炎における役割を検討した。本研究は関節リウマチの病原性遺伝子と病原性細胞サブセットの一部を明らかにすることで、関節リウマチの新規治療の開発につながることが期待される。

Report

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

    (4 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results)

  • [Journal Article] New Insights into the Role of Synovial Fibroblasts Leading to Joint Destruction in Rheumatoid Arthritis2023

    • Author(s)
      Kotaro Matsuda, Naoto Shiba, Koji Hiraoka
    • Journal Title

      International Journal of Molecular Science

      Volume: 24 Issue: 6 Pages: 5173-5173

    • DOI

      10.3390/ijms24065173

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elevated expression of transforming acidic coiled‐coil‐containing protein 3 (TACC3) reflects aggressiveness of primary central nervous system lymphomas2022

    • Author(s)
      Matsuda Kotaro、Sugita Yasuo、Furuta Takuya、Moritsubo Mayuko、Ohshima Koichi、Morioka Motohiro、Takahashi Kenji、Higaki Koichi、Kakita Akiyoshi
    • Journal Title

      Pathology International

      Volume: 72 Issue: 9 Pages: 437-443

    • DOI

      10.1111/pin.13264

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 整形外科医が知ってほしい骨代謝に関する基礎知識2021

    • Author(s)
      松田 光太郎、高柳 広
    • Journal Title

      日本整形外科学会雑誌

      Volume: 95 Pages: 1135-1143

    • NAID

      40022787301

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Symptomatic Venous Thromboembolism in Patients with Malignant Bone and Soft Tissue Tumors: A Prospective Multicenter Cohort Study2020

    • Author(s)
      Iwata Shintaro、Japanese Musculoskeletal Oncology Group (JMOG)、Kawai Akira、Ueda Takafumi、Ishii Takeshi
    • Journal Title

      Annals of Surgical Oncology

      Volume: 28 Issue: 7 Pages: 3919

    • DOI

      10.1245/s10434-020-09308-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access

URL: 

Published: 2021-04-28   Modified: 2024-01-30  

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