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The mechanism of acute liver failure focusing on immune response and cell-cell interacition

Research Project

Project/Area Number 21K15976
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionKyushu University

Principal Investigator

Kuwano Akifumi  九州大学, 医学研究院, 共同研究員 (90899006)

Project Period (FY) 2021-04-01 – 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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords急性肝不全 / 免疫応答 / 急性肝障害 / 炎症細胞
Outline of Research at the Start

急性肝不全においては高度な組織内の炎症が生じそれが持続することで組織破壊が進展するため、肝内マクロファージを中心とした炎症細胞がその病態に関与していると考えられるが、十分な検討はなされていない。また急性肝不全の一部の症例では肝類洞血流障害による広範な肝細胞壊死を呈するが、炎症細胞との関連も含めその詳細なメカニズムは不明である。本研究は急性肝不全におけるマクロファージを含めた炎症細胞での免疫応答と細胞間相互作用を中心とした解析を行い、急性肝不全の発症と増悪における基盤病態の解明と医学応用を目指すことを目的とする。

Outline of Final Research Achievements

To uncover the pathogenesis of acute liver failure (ALF) with microcirculatory disturbance, I analyzed Concanavalin A mouse model which presented ALF with microcirculatory disturbance. In this model, IFNγ was upregulated in innate lymphoid cells and stimulated hepatic vascular endothelial cells at the early stage of liver injury. IFNγ upregulated CD40 expression and Tissue factor (TF) was further induced by increased CD40-CD40 ligand interaction. These mechanism of the IFNγ-CD40-TF axis were involved in microcirculatory disturbance in human ALF patients.

Academic Significance and Societal Importance of the Research Achievements

急性肝不全は肝移植以外に有効な治療法が確立されておらず、移植治療ができない場合の致命率は高い。肝移植は脳死移植におけるドナー不足の問題、生体肝移植は健常者への手術侵襲の問題があり、移植以外の治療法の開発が望まれている。今回同定したIFNγ-CD40-TF axisのメカニズムはヒトの急性肝不全の発症にも関与しているものと考えられ、急性肝不全の内科的な新たな治療法の開発のターゲットとなりえる。本研究で得られた知見は急性肝不全の新たな治療戦略の開発へと繋がる基盤的な知見であると考えている。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (10 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (4 results)

  • [Journal Article] Transcatheter arterial steroid injection therapy improves the prognosis of patients with acute liver failure2023

    • Author(s)
      Kuwano Akifumi、Okui Tasuku、Kohjima Motoyuki、Kurokawa Miho、Goya Takeshi、Tanaka Masatake、Aoyagi Tomomi、Takahashi Motoi、Imoto Koji、Tashiro Shigeki、Suzuki Hideo、Fujita Nobuhiro、Ushijima Yasuhiro、Ishigami Kousei、Tokunaga Shoji、Kato Masaki、Ogawa Yoshihiro
    • Journal Title

      Medicine

      Volume: 102 Issue: 10 Pages: e33090-e33090

    • DOI

      10.1097/md.0000000000033090

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Elevated Pancreatic Enzymes Associated with Acute Liver Injury Were Mediated by Tumor Necrosis Factor-Alpha Signaling2022

    • Author(s)
      Goya Takeshi、Kurokawa Miho、Hioki Tomonobu、Aoyagi Tomomi、Takahashi Motoi、Imoto Koji、Tashiro Shigeki、Suzuki Hideo、Tanaka Masatake、Kato Masaki、Kohjima Motoyuki、Ogawa Yoshihiro
    • Journal Title

      Hepatitis Monthly

      Volume: 22 Issue: 1

    • DOI

      10.5812/hepatmon-128106

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pirfenidone attenuates acetaminophen-induced liver injury via suppressing c-Jun N-terminal kinase phosphorylation2022

    • Author(s)
      Tashiro Shigeki、Tanaka Masatake、Goya Takeshi、Aoyagi Tomomi、Kurokawa Miho、Imoto Koji、Kuwano Akifumi、Takahashi Motoi、Suzuki Hideo、Kohjima Motoyuki、Kato Masaki、Ogawa Yoshihiro
    • Journal Title

      Toxicology and Applied Pharmacology

      Volume: 434 Pages: 115817-115817

    • DOI

      10.1016/j.taap.2021.115817

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The combination of nucleotide analog therapy and steroid pulse therapy for acute HBV infection effectively promotes HBV clearance.2022

    • Author(s)
      Goya T, Kurashige T, Kurokawa M, Tanaka M, Aoyagi T, Takahashi M, Imoto K, Tashiro S, Suzuki H, Kato M, Kohjima M, Ogawa Y.
    • Journal Title

      Gastroenterol Insights.

      Volume: 13 Pages: 1-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Microcirculatory disturbance in acute liver injury2021

    • Author(s)
      Kuwano Akifumi、Kurokawa Miho、Kohjima Motoyuki、Imoto Koji、Tashiro Shigeki、Suzuki Hideo、Tanaka Masatake、Okada Seiji、Kato Masaki、Ogawa Yoshihiro
    • Journal Title

      Experimental and Therapeutic Medicine

      Volume: 21 Issue: 6 Pages: 596-596

    • DOI

      10.3892/etm.2021.10028

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Upregulated expression of hypoxia reactive genes in peripheral blood mononuclear cells from chronic liver disease patients2021

    • Author(s)
      Kuwano Akifumi、Tanaka Masatake、Suzuki Hideo、Kurokawa Miho、Imoto Koji、Tashiro Shigeki、Goya Takeshi、Kohjima Motoyuki、Kato Masaki、Ogawa Yoshihiro
    • Journal Title

      Biochemistry and Biophysics Reports

      Volume: 27 Pages: 101068-101068

    • DOI

      10.1016/j.bbrep.2021.101068

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 急性肝障害における炎症性サイトカインと細胞死2021

    • Author(s)
      桒野哲史、田中正剛、国府島庸之
    • Organizer
      日本消化器病学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 肝生検で診断した免疫チェックポイント阻害剤による肝障害の臨床的特徴2021

    • Author(s)
      日置智惟、川元美緒、高橋基、井本効志、黒川美穂、田代茂樹、鈴木秀生、合谷孟、田中正剛、加藤正樹、国府島庸之、小川佳宏
    • Organizer
      日本肝臓学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] IFNgは急性肝障害の類洞血流障害に関与する2021

    • Author(s)
      黒川美穂、桒野哲史、日置智惟、川元美緒、高橋基、井本効志、田代茂樹、鈴木秀生、合谷孟、田中正剛、加藤正樹、国府島庸之、小川佳宏
    • Organizer
      日本肝臓学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 病理学的に特徴的所見を呈したAbemaciclibによる薬物性肝障害の2例2021

    • Author(s)
      東夕喜、大野あかり、合谷孟、田中正剛、国府島庸之、小川佳宏
    • Organizer
      日本肝臓学会西部会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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