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Glucocorticoids enhance the differentiation and function of Th17 cells and cause colitis

Research Project

Project/Area Number 18K15184
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Shimba Akihiro  京都大学, 医学研究科, 助教 (30812242)

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: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsグルココルチコイド / ストレス / Th17細胞 / 大腸炎 / ILC3 / ステロイドホルモン / TH17 / 炎症性腸疾患
Outline of Final Research Achievements

Glucocorticoids are a class of steroid hormone produced from adrenal cortex and have the strong immunosuppressive effects and used for clinical treatment on inflammatory diseases. Interleukin-17-producing helper T cells (Th17 cells) are critical to exacerbate inflammatory diseases but the effects of glucocorticoids on Th17 cells remain unclear. We found that glucocorticoids enhanced the differentiation and function of Th17 cells via promoting glycolysis and glycolysis-associated gene expression in vitro and in inflammatory disease mouse models such as experimental autoimmune encephalomyelitis (EAE) and colitis. Furthermore, stress-induced glucocortioids also enhanced Th17 cel geneeration in duodenum to promote neutrophil infiltration and inflammation.

Academic Significance and Societal Importance of the Research Achievements

免疫抑制剤として炎症性疾患の治療に用いられているグルココルチコイドが病原性のあるTh17細胞の機能をむしろ促進する働きを持つという知見は、他の研究とは一線を画する。Th17細胞がグルココルチコイド耐性を持つことやグルココルチコイドにより機能が促進されることで、喘息や大腸炎の病態の再燃化や慢性化に繋がる機構が考察できることが期待される。また、免疫抑制効果のあるグルココルチコイドが産生されるストレス状況下において、炎症性疾患が惹起される機構について、グルココルチコイドがTh17細胞の発生を促進するという機構により、この疑問が解決され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 Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results) (of which Invited: 2 results)

  • [Journal Article] Chronic circadian misalignment accelerates immune senescence and abbreviates lifespan in mice2020

    • Author(s)
      Inokawa Hitoshi, Umemura Yasuhiro, Shimba Akihiro, Kawakami Eiryo, Koike Nobuya, Tsuchiya Yoshiki, Ohashi Munehiro, Minami Yoichi, Cui Guangwei, Asahi Takuma, Ono Ryutaro, Sasawaki Yuh, Konishi Eiichi, Yoo Seung-Hee, Chen Zheng, Teramukai Satoshi, Ikuta Koichi, Yagita Kazuhiro
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 2569-2569

    • DOI

      10.1038/s41598-020-59541-y

    • NAID

      120006799241

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Control of immunity by glucocorticoids2019

    • Author(s)
      Shimba Akihiro
    • Organizer
      第48回日本免疫学会学術集会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Glucocorticoids enhance T cell immune response.2019

    • Author(s)
      榛葉旭恒
    • Organizer
      日本免疫学会
    • Related Report
      2018 Research-status Report
    • Invited

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

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