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Coordination of retrotransposons and type I interferon with distinct interferon pathways in dermatomyositis, systemic lupus erythematosus and autoimmune blistering disease

Research Project

Project/Area Number 21K20753
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0803:Pathology, infection/immunology, and related fields
Research InstitutionGunma University

Principal Investigator

Kuriyama Yuko  群馬大学, 医学部附属病院, 医員 (80910588)

Project Period (FY) 2021-08-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsインターフェロン / 皮膚筋炎 / 全身性エリテマトーデス / レトロトランスポゾン / 自己免疫水疱症 / interferon / retrotransposon / dermatomyositis
Outline of Research at the Start

全身性エリテマトーデス(SLE)や皮膚筋炎などの自己免疫疾患ではI型インターフェロン(IFN)が病態に関与する。I型IFNは通常ウイルス感染に応答して産生されるが、代表的レトロトランスポゾンである長鎖散在反復配列(LINE-1)もI型IFN産生を誘導する。自己免疫疾患のI型IFN発現上昇とLINE-1の関与とIFN経路活性メカニズムを明らかにする。本研究により自己免疫疾患の新たな初期病態形成機序を解明したい。

Outline of Final Research Achievements

The correlation between type I interferon (IFN) and retrotransposons contributing to its production in dermatomyositis, systemic lupus erythematosus, and autoimmune blistering, and the correlation with interferon-induced genes downstream of the IFN pathway were clarified for each disease. The expression of retrotransposons and type I IFNs in concert was widely observed from healthy to autoimmune diseases, suggesting that type I IFN expression and retrotransposon expression may be mutually regulated. In patients with dermatomyositis, high type I IFN expression may be induced by increased retrotransposon expression, and abnormal high expression of STAT1 is characteristic of SLE, suggesting that chronic IFN-γ signaling may be involved.

Academic Significance and Societal Importance of the Research Achievements

協調したレトロトランスポゾンとI型IFNの発現は健常から自己免疫疾患まで広くみられ、I型IFNの発現とレトロトランスポゾン発現は相互制御である可能性が示唆された。皮膚筋炎患者においてはI型IFN高発現がレトロトランスポゾンの発現亢進によって誘導されることが示唆され、LINE-1発現を抑える5Aza-CやIFN経路の下流を抑えるJAK-STAT経路に関わるpan-JAK阻害薬は有用である可能性があり、今後の治療薬の開発につながる結果である。

Report

(2 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • Research Products

    (2 results)

All 2021

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

  • [Journal Article] Coordination of retrotransposons and type I interferon with distinct interferon pathways in dermatomyositis, systemic lupus erythematosus and autoimmune blistering disease2021

    • Author(s)
      Kuriyama Yuko、Shimizu Akira、Kanai Saki、Oikawa Daisuke、Motegi Sei-ichiro、Tokunaga Fuminori、Ishikawa Osamu
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 23146-23146

    • DOI

      10.1038/s41598-021-02522-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Coordinated expression of retrotransposon and type I interferon with distinct interferon pathways in autoimmune diseases2021

    • Author(s)
      Yuko Kuriyama, Akira Shimizu, Saki Kanai, Daisuke Oikawa, Fuminori Tokunaga, Osamu Ishikawa, Sei-ichiro Motegi
    • Organizer
      46th The Japanese society for investigative dermatology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research

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Published: 2021-10-22   Modified: 2023-01-30  

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