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Pathology of aortic dissection with T cells immune control tower and medicine development

Research Project

Project/Area Number 20K17733
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 55030:Cardiovascular surgery-related
Research InstitutionKurume University

Principal Investigator

majima ryohei  久留米大学, 医学部, 助教 (60811073)

Project Period (FY) 2020-04-01 – 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: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsT細胞 / 大動脈解離 / Foxp3 / 脂肪組織 / 脂質代謝 / FAK / 制御性T細胞 / Syk
Outline of Research at the Start

大動脈解離は大動脈中膜が突然破綻する致死的疾患である。病態はほとんど解明されていない。申請者は接着斑キナーゼ (Focal adhesion kinase: FAK) がT細胞、B細胞の分化・ 成熟を促進し解離を進展させることを見出したことから、大動脈解離における免疫機能に着眼した。本研究では「免疫の司令塔」であるT細胞が大動脈解離病態を統合的に制御するとの仮説を検証する。

Outline of Final Research Achievements

This study focused on T cells immune control tower, and investigated the relationship with the pathology of aortic dissociation (AD). We created a mouse model of AD by continuous infusion of β-aminopropionitrile and angiotensin II. We performed genetic analysis on aortic tissue of AD mouse model treated the immunosuppressive molecule Syk inhibitor. As a result, Foxp3, a master transcription factor of regulatory T cells, was significantly suppressed. We found that immune response changed in para-aortic adipose tissue before AD onset in genetic analysis of para-aortic adipose tissue. It was suggested that the aortic tissue and the para-aortic adipose tissue are spatially close to each other in AD pathology, and function in immune response system.

Academic Significance and Societal Importance of the Research Achievements

大動脈解離は大動脈中膜が突然断裂する致死的疾患である。社会的責任が大きくなる50代以上の男性に多く発症し、突然死を来すことがあるが、外科的治療の他に積極的な内科治療は存在しない。本研究の結果により、解離刺激条件下において、Foxp3は解離に抑制的に働く可能性があること、解離病態において大動脈組織と傍大動脈脂肪組織は1つの免疫応答システムとして働いていることが示唆された。

Report

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

    (9 results)

All 2022 2021 2020

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results) Book (1 results)

  • [Journal Article] Ying and Yang of Stat3 in pathogenesis of aortic dissection2021

    • Author(s)
      Aoki Hiroki、Majima Ryohei、Hashimoto Yohei、Hirakata Saki、Ohno-Urabe Satoko
    • Journal Title

      Journal of Cardiology

      Volume: 77 Issue: 5 Pages: 471-474

    • DOI

      10.1016/j.jjcc.2020.10.010

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] The role of FAK in murine model of aortic dissection2022

    • Author(s)
      Ryohei Majima, Hiroki Aoki, Ryo Shibata, Eichi Nakao, Yohei Hashimoto, Makiko Hayashi, Sohei Ito, Satoko Ohno-Urabe, and Yoshihiro Fukumoto
    • Organizer
      The 86th Annual Scientific Meeting of the JCS, March 11 - 13, 2022
    • Related Report
      2021 Annual Research Report
  • [Presentation] 大動脈解離病態における細胞老化の関与2021

    • Author(s)
      中尾英智、青木浩樹、眞島涼平、橋本洋平、柴田怜、林真貴子、大野-浦部聡子、古荘文、西田憲文、平方佐季、福本義弘
    • Organizer
      第130回 日本循環器学会九州地方会(2021年6月26日:沖縄、オンライン)
    • Related Report
      2021 Annual Research Report
  • [Presentation] The role of cellular senescence in aortic dissection2021

    • Author(s)
      E. Nakao, H. Aoki, R. Majima, Y. Hashimoto, R. Shibata, M. Hayashi, S. Ohno-Urabe, A. Furusho, N. Nishida, S. Hirakata and Y. Fukumoto
    • Organizer
      The 5th JCS Council Forum on Basic Cardiovascular Research (2021年9月11日〜12日:大阪、オンライン)
    • Related Report
      2021 Annual Research Report
  • [Presentation] The role of cellular senescence in aortic dissection2021

    • Author(s)
      E. Nakao, H. Aoki, R. Majima, Y. Hashimoto, R. Shibata, M. Hayashi, S. Ohno- Urabe, A. Furusho, N. Nishida, S. Hirakata and Y. Fukumoto
    • Organizer
      ESC Congress 2021, London, UK, October 27 - 30, 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Involvement of FAK in aortic dissection: potential role in aortic interstitial cells2021

    • Author(s)
      R. Majima, H. Aoki, R. Shibata, E. Nakao, Y. Hashimoto, M. Hayashi, S. Ito, S. Ohno-Urabe, and Y. Fukumoto
    • Organizer
      ESC Congress 2021, London, UK, October 27 - 30, 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Role of Cellular Senescence in Aortic Dissection2021

    • Author(s)
      E. Nakao, H. Aoki, R. Majima, Y. Hashimoto, R. Shibata, M. Hayashi, S. Ohno-Urabe, A. Furusho, N. Nishida, S. Hirakata and Y. Fukumoto
    • Organizer
      AHA Scientific Sessions 2021, Boston, USA, November 13 - 15, 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Focal Adhesion Kinase Promotes Tissue Destruction in Aortic Dissection in Mice2020

    • Author(s)
      Ryohei Majima, Hiroki Aoki, Yohei Hashimoto, Makiko Hayashi, Sohei Ito, Satoko Ohno-Urabe, Yoshihiro Fukumoto
    • Organizer
      Basic Cardiovascular Sciences 2020 Scientific Sessions
    • Related Report
      2020 Research-status Report
  • [Book] マウス大動脈解離モデル. モデル動物の作製と利用-循環器疾患2021.2021

    • Author(s)
      西田憲史, 中尾英智, 橋本洋平, 眞島涼平, 伊東壮平, 青木浩樹
    • Publisher
      エル・アイ・シー
    • ISBN
      9784900487581
    • Related Report
      2021 Annual Research Report

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Published: 2020-04-28   Modified: 2023-01-30  

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