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Elucidation of the role of p16INK4a in aging process of gut immune system and microbiota

Research Project

Project/Area Number 18K15188
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49070:Immunology-related
Research InstitutionOsaka University

Principal Investigator

Kawamoto Shimpei  大阪大学, 微生物病研究所, 助教 (40612081)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords細胞老化 / 腸内フローラ / 免疫グロブリンA / 老化細胞 / p16INK4a / パイエル板 / IgA
Outline of Final Research Achievements

The human gastrointestinal tract harbours a complex community of microorganisms, called the gut microbiota. Although it has known that an imbalance of gut microbiota, named dysbiosis is generated through aging, its mechanism has not been clarified. This study revealed that the increase of p16INK4 expression in T or B cells through aging affects the immunoglobulin A production in Peyer's patches, leading to dysbiosis of gut microbiota.

Academic Significance and Societal Importance of the Research Achievements

本研究を通して、加齢に伴う腸内フローラのバランスの乱れの原因が、T細胞およびB細胞の老化に伴う免疫グロブリンAの機能変化であることが示唆された。今まで明らかとなっていなかった加齢に伴う腸内フローラの破綻機構の一端が明らかになったともに、加齢に伴う腸内フローラの破綻の予防もしくは回復を人為的に行える可能性が示された。従って、本研究は、腸内フローラの破綻が影響していることが知られる加齢性疾患の新たな予防法や治療法の開発につながることが期待される。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (3 results)

All 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results) (of which Invited: 1 results)

  • [Journal Article] A BET family protein degrader provokes senolysis by targeting NHEJ and autophagy in senescent cells.2020

    • Author(s)
      Wakita M, Takahashi A, Sano O, Loo TM, Imai Y, Narukawa M, Iwata H, Matsudaira T, Kawamoto S, Ohtani N, Yoshimori T, Hara E.
    • Journal Title

      Nat Commun

      Volume: 1935 Issue: 1 Pages: 1935-1935

    • DOI

      10.1038/s41467-020-15719-6

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 皮膚腫瘍の悪性化に関わる皮膚細菌の単離同定2020

    • Author(s)
      植村憲、河本新平、脇田将裕、原英二
    • Organizer
      第93回 日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 腸内細菌による細胞老化を介した発がん促進機構2019

    • Author(s)
      河本新平
    • Organizer
      第47回日本臨床免疫学会総会
    • Related Report
      2019 Annual Research Report
    • Invited

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Published: 2018-04-23   Modified: 2021-02-19  

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