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Involvement of gut microbiota in T follicular helper cell-associated immuno senescence

Research Project

Project/Area Number 18K06034
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 42040:Laboratory animal science-related
Research InstitutionFukushima Medical University

Principal Investigator

Kawata Koji  福島県立医科大学, 医学部, 助教 (20374572)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords濾胞ヘルパーT細胞 / 免疫老化 / 腸内細菌叢 / 老化モデルマウス / 濾胞ヘルパーT細胞 / プロバイオティクス / 老化モデル / SAMP1
Outline of Final Research Achievements

In our study, a significant increases of individual T-cell subsets especially T follicular helper (Tfh) cells, which were observed in normal aged mice, were observed in D-galactose-induced aging model mice and senescence accelerated mouse P1 (SAMP1), while antibiotics treatment effectively inhibited the increment of Tfh-like cells. Furthermore, oral administration of Lactobacillus murinus, which was identified as dominant species of intestinal microbiota in antibiotics treated mice, exhibit a similar inhibitory effects. These results suggests that L. murinus might be involved in differentiation and numerical regulation of Tfh-like cells, which might contribute to immunosenescence.

Academic Significance and Societal Importance of the Research Achievements

本研究により、老化に伴うT細胞の構成変化を特定の腸内細菌種によって抑制可能であり、老化病態形成を制御できる可能性が示された。本研究で確認されたTfh様細胞増加の老化病態形成への寄与は明らかとなっていないが、SLEを自然発症するBWF1マウスにおいて、同様の表現型を有するT細胞が若齢期から増加し、病態形成に関与する可能性が報告されている。本研究によって得られた知見は、老化病態のみならず、プロバイオティクス等を用いた自己免疫性疾患コントロールにおいても有用な基礎的データとなると考えられる。

Report

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

    (4 results)

All 2021 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (3 results)

  • [Journal Article] Features of T-cell subset composition in a D-galactose-induced senescence mouse model2021

    • Author(s)
      KAWATA Koji、SUZUKI Takato、OZAWA Kazunori、SEKIGUCHI Miho
    • Journal Title

      Experimental Animals

      Volume: 70 Issue: 3 Pages: 284-292

    • DOI

      10.1538/expanim.20-0095

    • NAID

      130008072165

    • ISSN
      0007-5124, 1341-1357, 1881-7122
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ガラクトース誘発亜急性老化モデルマウスの免疫学的特性と腸内細菌叢2020

    • Author(s)
      川田 耕司,鈴木 崇斗,小澤 和典,関口 美穂
    • Organizer
      第67回日本実験動物学会総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ガラクトース誘発亜急性老化モデルおよび老化促進モデルマウスSAMP1における濾胞ヘルパーT様細胞の数的動態2019

    • Author(s)
      川田 耕司, 鈴木 祟斗, 小澤 和典, 関口 美穂
    • Organizer
      第66回日本実験動物学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 老化モデルマウスにおける濾胞ヘルパーT様細胞の数的変動2018

    • Author(s)
      川田 耕司, 鈴木 祟斗, 小澤 和典, 関口 美穂
    • Organizer
      第161回日本獣医学会学術集会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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