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Perivascular Tissue Stress Response: A New Frontier in Atherosclerosis Research

Research Project

Project/Area Number 22K16097
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53020:Cardiology-related
Research InstitutionThe University of Tokyo

Principal Investigator

Adachi Yusuke  東京大学, 医学部附属病院, 特任研究員 (40834198)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords動脈硬化 / 血管周囲脂肪 / 急性大動脈解離 / 血管周囲組織 / 褐色化
Outline of Research at the Start

申請者は血管傷害後の血管周囲脂肪組織(PVAT)において、ストレス応答機構としての「脂肪褐色化」という現象が発動することを捉え、褐色化PVATはマクロファージを炎症型から抗炎症型に変化させることで血管炎症を収束化していることを見出した。PVATを構成する細胞群は脂肪細胞や前駆脂肪細胞のみならず、免疫担当細胞、血管構成細胞、線維芽細胞などの複数の細胞群から成り立っており、褐色化を通して何がマクロファージを炎症型から抗炎症型へシフトさせるのかは明らかとなっていない。本研究では、褐色化PVATが抗炎症・抗動脈硬化作用を発揮する機序を明らかにし、動脈硬化性疾患の治療法開発への基盤構築を目指す。

Outline of Final Research Achievements

In this study, we demonstrated that anti-inflammatory macrophages, which accumulate around the vasculature as a stress response mechanism following vascular injury, induce the beiging of perivascular adipose tissue. Additionally, we focused on acute aortic dissection as a specific form of vascular injury and advanced our research using both human and mouse models. We showed, through analyses conducted with mouse models and human pathological samples, that anti-inflammatory macrophages significantly accumulate in the dissected perivascular tissue as part of this stress response mechanism. Furthermore, we discovered that the perivascular fat attenuation index, which is recognized as a marker of perivascular inflammation, significantly increases in cases of acute aortic dissection, indicating its potential as a novel biomarker for diagnosing this condition.

Academic Significance and Societal Importance of the Research Achievements

本研究によって、血管傷害に対する生体内のストレス応答機構の一環としての血管周囲脂肪褐色化現象の一端を解明することができた。また、研究代表者はマウスモデルおよびヒト臨床サンプルを用いて、大動脈解離における血管周囲組織の炎症・免疫動態に迫る基礎・臨床研究を展開している。大動脈周囲炎症をこれまで非侵襲的に捉える方法は乏しかったが、血管周囲脂肪減衰指数は非造影コンピューター断層撮影画像から算出できる非侵襲的な指標であり、造影剤を必要としない新たなバイオマーカーとして機能する可能性が期待される。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (9 results)

All 2024 2023 2022

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Perivascular adipose tissue in vascular pathologies-a novel therapeutic target for atherosclerotic disease?2023

    • Author(s)
      Adachi Yusuke、Ueda Kazutaka、Takimoto Eiki
    • Journal Title

      Frontiers in Cardiovascular Medicine

      Volume: 10 Pages: 1151717-1151717

    • DOI

      10.3389/fcvm.2023.1151717

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tie2-Cre-Induced Inactivation of Non-Nuclear Estrogen Receptor-α Signaling Abrogates Estrogen Protection Against Vascular Injury2023

    • Author(s)
      Liu Pang-Yen、Fukuma Nobuaki、Hiroi Yukio、Kunita Akiko、Tokiwa Hiroyuki、Ueda Kazutaka、Kariya Taro、Numata Genri、Adachi Yusuke、Tajima Miyu、Toyoda Masayuki、Li Yuxin、Noma Kensuke、Harada Mutsuo、Toko Haruhiro、Ushiku Tetsuo、Kanai Yoshimitsu、Takimoto Eiki、Liao James K.、Komuro Issei
    • Journal Title

      JACC: Basic to Translational Science

      Volume: 8 Issue: 1 Pages: 55-67

    • DOI

      10.1016/j.jacbts.2022.07.001

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Beiging of perivascular adipose tissue regulates its inflammation and vascular remodeling2022

    • Author(s)
      Adachi Yusuke、Ueda Kazutaka、Nomura Seitaro、Ito Kaoru、Katoh Manami、Katagiri Mikako、Yamada Shintaro、Hashimoto Masaki、Zhai Bowen、Numata Genri、Otani Akira、Hinata Munetoshi、Hiraike Yuta、Waki Hironori、Takeda Norifumi、Morita Hiroyuki、Ushiku Tetsuo、Yamauchi Toshimasa、Takimoto Eiki、Komuro Issei
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 5117-5117

    • DOI

      10.1038/s41467-022-32658-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A pacing-controlled protocol for frequency-diastolic relations distinguishes diastolic dysfunction specific to a mouse HFpEF model2022

    • Author(s)
      Numata Genri、Takimoto Eiki、Kariya Taro、Adachi Yusuke、Tokiwa Hiroyuki、Toyoda Masayuki、Mafune Ryo、Saito Yoshihiro、Nakamura Shun、Ueda Kazutaka、Ikeda Yuichi、Komuro Issei
    • Journal Title

      American Journal of Physiology-Heart and Circulatory Physiology

      Volume: 323 Issue: 3 Pages: H523-H527

    • DOI

      10.1152/ajpheart.00241.2022

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] Diagnostic and Prognostic Potential of Perivascular Fat Attenuation Index in Acute Aortic Dissection2024

    • Author(s)
      Yusuke Adachi, Kazutaka Ueda, Yuka Otaki, Masaki Hashimoto, Hiroyuki Sowa, Genri Numata, Shun Nakamura, Masae Uehara, Nobuhiko Itoh, Masashi Kasao, Atsuko Nakayama, Kaori Takada, Yoshiyuki Mizutani, Eiki Takimoto, Kenichi Sakakura, Hideo Fujita, Nobuo Iguchi, Mitsuaki Isobe, Hiroyuki Morita, Issei Komuro
    • Organizer
      第88回 日本循環器学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] The Role of Pericardial Adipose Tissue in the Development of Heart Failure2024

    • Author(s)
      橋本昌樹, 上田和孝, 安達裕助, 曾和裕之, てき博文, 小室一成
    • Organizer
      第88回 日本循環器学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] マルファン症候群の大動脈拡大における血管周囲組織炎症の寄与2024

    • Author(s)
      曾和 裕之, 橋本 昌樹, てき博文, 安達 裕助, 八木 宏樹, 上田 和孝, 武田 憲文, 赤澤 宏, 小室 一成
    • Organizer
      第53回 日本心脈管作動物質学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Beiging of Perivascular Adipose Tissue Regulates Its Inflammation and Vascular Remodeling2022

    • Author(s)
      Yusuke Adachi, Kazutaka Ueda, Kaoru Ito, Seitaro Nomura, Eiki Takimoto, Issei Komuro
    • Organizer
      Vascular Discovery: From Genes to Medicine - Scientific Sessions 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 血管周囲脂肪組織の褐色化は血管の炎症とリモデリングを制御する2022

    • Author(s)
      安達 裕助, 上田 和孝, 伊藤 薫, 野村 征太郎, 瀧本 英樹, 小室 一成
    • Organizer
      日本動脈硬化学会総会
    • Related Report
      2022 Research-status Report

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Published: 2022-04-19   Modified: 2025-01-30  

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