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Elucidation of the mechanism of IFN alpha overproduction through the STING pathway in SLE

Research Project

Project/Area Number 19K24002
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0904:Internal medicine of the bio-information integration and related fields
Research InstitutionJuntendo University

Principal Investigator

Murayama Goh  順天堂大学, 大学院医学研究科, 助教 (80850908)

Project Period (FY) 2019-08-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords全身性エリテマトーデス / cGAS / STING / 単球 / インターフェロンα / RNAシークエンス / GATA4 / pDC / 細胞内核酸受容体 / オートファジー / rapamycin / I型インターフェロン
Outline of Research at the Start

全身性エリテマトーデス(systemic lupus erythematosus: SLE)は、組織炎症を特徴とした全身性自己免疫疾患である。SLE病態において重要な役割を果たすサイトカインとしてI型インターフェロン(interfron; IFN)が注目されており、申請者らは細胞内核酸受容体を介してSLE患者の単球からI型IFNが多く産生されることを見出した。本研究では単球におけるI型IFN産生能に注目し、SLE病態形成に重要なI型IFN産生単球の種類を特定し、更にそのI型IFN産生を制御することでSLEの新規治療法の確立を目指す。

Outline of Final Research Achievements

Interferon (IFN) α has been the most important cytokine in the pathology of systemic lupus erythematosus (SLE), but it remains unclear how IFNα is produced. We found that monocytes produce IFNα through the Cyclic GMP-AMP synthase (cGAS) -stimulator of IFN genes (STING) pathway. In order to identify monocyte subsets important for SLE pathogenesis, we performed RNA sequencing (RNA-seq) for SLE monocytes and found that the expression of the GATA4 gene involved in cellular senescence was enhanced.

Academic Significance and Societal Importance of the Research Achievements

これまでSLEにおいて、IFNαが病態に重要であることは示されてきたが、その産生源や産生機序についてはまだ不明な点が多い。我々はこれまでIFNα産生細胞として注目されてこなかった単球が、細胞内核酸受容体経路であるcGAS-STING経路刺激によりIFNαを産生することを明らかにした。健常者単球にはIFNα産生能を有する細胞は僅かしか存在せず、IFNα産生単球はSLE病態と深く関わっている可能性がある。IFNα産生を行う単球の特徴や変化を同定することで、SLEの新規治療法や予防法の確立へ発展が期待される。

Report

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

    (7 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Activated mucosal-associated invariant T cells have a pathogenic role in a murine model of inflammatory bowel disease.2022

    • Author(s)
      usuke Yasutomi, Asako Chiba, Keiichi Haga, Goh Murayama, Ayako Makiyama, Taiga Kuga, Mamoru Watanabe, Ryuichi Okamoto, Akihito Nagahara, Takashi Nagaishi, Saichiko Miyake.
    • Journal Title

      Cellular and Molecular Gastroenterology and Hepatology.

      Volume: 13 Issue: 1 Pages: 81-93

    • DOI

      10.1016/j.jcmgh.2021.08.018

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characteristics of mucosal-associated invariant T cells and their roles in immune diseases2021

    • Author(s)
      Chiba Asako、Murayama Goh、Miyake Sachiko
    • Journal Title

      International Immunology

      Volume: 33 Issue: 12 Pages: 775-780

    • DOI

      10.1093/intimm/dxab070

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Combination therapy with plasma exchange and glucocorticoid may be effective for severe COVID‐19 infection: A retrospective observational study2021

    • Author(s)
      Matsushita Yasushi、Kusaoi Makio、Hiki Makoto、Murayama Goh、Abe Yoshiyuki、Nozawa Kazuhisa、Takahashi Kazuhisa、Yamaji Ken、Tamura Naoto、Naito Toshio
    • Journal Title

      Therapeutic Apheresis and Dialysis

      Volume: 25 Issue: 4 Pages: 390-400

    • DOI

      10.1111/1744-9987.13656

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhibition of mTOR Suppresses IFNα Production and the STING Pathway in Monocytes From Systemic Lupus Erythematosus Patients2020

    • Author(s)
      Goh Murayama
    • Journal Title

      Rheumatology (Oxford)

      Volume: -

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] SLE単球におけるcGAS-STING経路を介した IFNα産生亢進メカニズムの解明2022

    • Author(s)
      久我大雅 村山豪
    • Organizer
      第119回日本内科学会総会・講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Enhanced IFN a Production and STING Pathway in Monocytes in Systemic Lupus Erythematosus Is Suppressed by the Inhibition of mTOR Activation2019

    • Author(s)
      Goh Murayama
    • Organizer
      the 2019 ACR/ARP Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] The inhibition of mTOR activation suppress IFN alpha production and STING pathway in monocytes in systemic lupus erythematosus2019

    • Author(s)
      Goh Murayama
    • Organizer
      第48回日本免疫学会
    • Related Report
      2019 Research-status Report

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Published: 2019-09-03   Modified: 2023-01-30  

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