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Identification of M3 muscarinic acetylcholine receptor reactive Th17 cells in peripheral blood of primary Sjogren's syndrome.

Research Project

Project/Area Number 19K17880
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 54020:Connective tissue disease and allergy-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Abe Saori  筑波大学, 医学医療系, 助教 (00830093)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsT細胞 / 自己免疫 / シェーグレン症候群 / ELISPOT法 / 抗原特異的T細胞 / TCR seq / M3R / Th17 / 抗原特異的自己免疫応答
Outline of Research at the Start

シェーグレン症候群(SS:Sjogren’s syndrome)において自己抗原として注目されているM3ムスカリン作働性アセチルコリン受容体(M3R:M3 Muscarinic acetylcholine receptor)に対する免疫応答は、SS類似の唾液腺炎をマウスにて発症させ、その病態としてM3R反応性Th1細胞、Th17細胞の関与を本研究室の先行研究で報告した。近年IL-17を産生するTh17細胞は、様々の自己免疫疾患において重要な役割を果たすことが示されており、M3R反応性Th17細胞のSS病態への関与を解析することで抗原特異的治療法の構築を目的とする。

Outline of Final Research Achievements

We have reported the identification of circulating M3R-reactive Th17 cells in treatment-naive pSS patients, and the identical TCR repertoire was also detected in LSG of the same patient. The presence of these cells tended to correlate with a higher disease activity score and significantly higher titers of functional anti-M3R antibodies. These results suggest that screening for M3R-specific Th17 cells and targeting them therapeutically is a potentially effective treatment strategy for pSS.

Academic Significance and Societal Importance of the Research Achievements

シェーグレン症候群(SS:Sjogren’s syndrome)は慢性外分泌腺炎を主徴とする原因不明の自己免疫疾患 の一つであり、国の難病に指定されている。その効果的な治療方法は未確立であり、根治的治療法の確立が本疾患における最大の課題である。本研究はSSにおける病態解明を目的としており、本研究結果からSSに対して唾液腺局所と重複して存在する末梢血中の自己抗原特異的T細胞が新たな治療標的となる可能性が示唆された。

Report

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

    (12 results)

All 2021 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 1 results) Funded Workshop (1 results)

  • [Journal Article] Clinically amyopathic dermatomyositis associated with anti-nuclear matrix protein 2 antibody2021

    • Author(s)
      Abe Saori、Tsuboi Hiroto、Toko Hirofumi、Honda Fumika、Yagishita Mizuki、Hagiwara Shinya、Kondo Yuya、Konishi Risa、Okune Mari、Ichimura Yuki、Okiyama Naoko、Matsumoto Isao
    • Journal Title

      Rheumatology Advances in Practice

      Volume: 5 Issue: 3

    • DOI

      10.1093/rap/rkab104

    • Related Report
      2021 Annual Research Report
  • [Journal Article] M3 muscarinic acetylcholine receptor?reactive Th17 cells in primary Sjogren’s syndrome2020

    • Author(s)
      Abe Saori、Tsuboi Hiroto、Kudo Hanae、Asashima Hiromitsu、Ono Yuko、Honda Fumika、Takahashi Hiroyuki、Yagishita Mizuki、Hagiwara Shinya、Kondo Yuya、Matsumoto Isao、Sumida Takayuki
    • Journal Title

      JCI Insight

      Volume: 5 Issue: 15

    • DOI

      10.1172/jci.insight.135982

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 一次性シェーグレン症候群患者の末梢血中T細胞サブセットと臨床像との関連2021

    • Author(s)
      安部沙織
    • Organizer
      第65回日本リウマチ学会総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 一次性シェーグレン症候群患者の末梢血中ヘルパーT細胞サブセットと臨床像との関連2021

    • Author(s)
      安部沙織
    • Organizer
      第29回日本シェーグレン症候群学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Detection and clinical significance of circulating M3 muscarinic acetylcholine receptor (M3R) reactive Th17 cells in patients with primary Sjogren’s syndrome2020

    • Author(s)
      Saori Abe
    • Organizer
      第64回日本リウマチ学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] M3 muscarinic acetylcholine receptor (M3R) reactive Th17 cells in patients with primary Sjogren’s syndrome2020

    • Author(s)
      Saori Abe
    • Organizer
      22nd Asia Pacific League of Associations for Rheumatology Virtual Congress
    • Related Report
      2020 Research-status Report
  • [Presentation] シェーグレン症候群におけるM3ムスカリン作働性アセチルコリン受容体(M3R)反応性Th17細胞の臨床的意義2020

    • Author(s)
      安部沙織
    • Organizer
      第48回日本臨床免疫学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] Detection of circulating M3 muscarinic acetylcholine receptor reactive Th17 cells in patients with primary Sjogren’s syndrome2019

    • Author(s)
      安部沙織
    • Organizer
      第63回日本リウマチ学会総会・学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] シェーグレン症候群患者末梢血中におけるM3ムスカリン作働性アセチルコリン受容体(M3R)反応性Th17細胞と臨床的意義2019

    • Author(s)
      安部沙織
    • Organizer
      第28回日本シェーグレン症候群学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] Detection and clinical significance of circulating M3 muscarinic acetylcholine receptor reactive Th17 cells in patients with primary Sjogren’s syndrome2019

    • Author(s)
      Saori Abe
    • Organizer
      2019 ACR/ARP annual meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] M3 muscarinic acetylcholine receptor reactive Th17 cells in patients with primary Sjogren’s syndrome2019

    • Author(s)
      Saori Abe
    • Organizer
      第48回日本免疫学会学術集会
    • Related Report
      2019 Research-status Report
  • [Funded Workshop] 2019 ACR/ARP annual meeting2019

    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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