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Altered composition of microbiota in rheumatoid arthritis patients

Research Project

Project/Area Number 18K16147
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 54020:Connective tissue disease and allergy-related
Research InstitutionOsaka University

Principal Investigator

Maeda Yuichi  大阪大学, 医学系研究科, 助教 (10815658)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords腸内細菌叢 / 腸内細菌関連関節炎 / 関節リウマチ / 腸内細菌
Outline of Final Research Achievements

Prevotella copri isolated from rheumatoid arthritis patients possess unique region on the genome. Moreover, we found that the bacterium induced severe Th17-cell dependent arthritis in mice.

Academic Significance and Societal Importance of the Research Achievements

これまで、Prevotell copri菌が炎症誘導や宿主の健康維持に関わることが示唆されていたが、病態増悪に関与する遺伝子領域は不明であった。本研究により、特有の遺伝子配列を持つP. copri菌が、関節炎誘導増悪に関与していることが明らかとなった。このことより、関節リウマチ発症における特定の腸内細菌の関与が示された。また、Helicobacter pyloriの除菌が慢性胃炎、胃十二指腸潰瘍を改善させるのと同じように、関節リウマチにおいても、関節炎惹起能の高いP. copriを除菌することができれば、関節炎を抑制できる可能性がある。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (2 results)

All 2021 2019

All Presentation (2 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Presentation] Prevotella copri isolated from rheumatoid arthritis patients exacerbated murine models of arthritis2021

    • Author(s)
      Yuichi Maeda
    • Organizer
      The 27th International Symposium on Molecular Cell Biology of Macrophages
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Intestinal Prevotella copri isolation from rheumatoie arthritis patients exacerbates murine models of arthritis2019

    • Author(s)
      Takuro Nii, Yuichi Maeda, Atushshi Kumanogoh, Kiyoshi Takeda
    • Organizer
      第48回日本免疫学会学術集会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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