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Functional analysis of anti-fibrotic macrophage in the cardiac remodelling

Research Project

Project/Area Number 19K08542
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionJichi Medical University (2020-2021)
Nagasaki University (2019)

Principal Investigator

Isagawa Takayuki  自治医科大学, 医学部, 講師 (40418637)

Co-Investigator(Kenkyū-buntansha) 武田 憲彦  自治医科大学, 医学部, 教授 (40422307)
前村 浩二  長崎大学, 医歯薬学総合研究科(医学系), 教授 (90282649)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsマクロファージ / 心不全 / 心臓リモデリング / 心臓線維化 / 線維芽細胞 / 心線維化 / 虚血環境 / 低酸素 / 低栄養 / 炎症
Outline of Research at the Start

心線維化は心不全の独立した予後不良因子であるが、現時点で有効な治療法は存在せず臨床的に大きな問題となっている。その為、心線維化の病態・病理解明による治療戦略の確立が求められている。また、心不全状態の心筋組織にはマクロファージ(Mφ)が浸潤し、いわゆる無菌性炎症が惹起される。このような心筋組織の慢性炎症が組織リモデリングにおいて大きな役割を果たすと考えられるもののその詳細な分子機構は不明である。本研究では、心臓組織浸潤Mφの機能解析を通じて心臓リモデリング過程における炎症シグナルの分子実態を解明することにより、心線維化に対する新たな治療法開発に資することを目的とする。

Outline of Final Research Achievements

Cardiac fibrosis is an independent poor prognostic factor for heart failure, but there is none of the therapies for cardiac fibrosis. It has become a major clinical problem. Therefore, elucidation of the molecular processes by which fibroblasts are activated or deactivated is critically important for the development of therapeutic approaches in the cardiac fibrosis. During cardiac remodeling, inflammatory macrophages accumulate in hypoxic areas in the dependent on a hypoxia-inducible factor (HIF)-1αand suppresses cardiac fibroblast activation. As a molecular mechanism, we identify oncostatin-m (OSM) as a HIF-1α target gene, which directly inhibits the TGF-β mediated activation of cardiac fibroblasts through extracellular signal-regulated kinase 1/2-dependent phosphorylation of the SMAD linker region. These results demonstrate that macrophage hypoxia signaling regulates fibroblast activation through OSM secretion in vivo.

Academic Significance and Societal Importance of the Research Achievements

近年、心臓拡張能の低下による心不全、いわゆる拡張不全が劇的に増加している。拡張不全の主たる病態の一つは心筋組織の過剰な線維化であるが、なぜ心臓で線維芽細胞が過剰に活性化するのか未だに不明である。それ故、拡張不全に対して有効な治療法は無く、その病態解明と治療法開発が強く求められている。本研究では心臓リモデリング過程において浸潤する炎症性マクロファージがOncostatin Mを分泌することで心臓線維化を強力に抑制することを見出した。本研究成果は、拡張不全に対する新たな治療法開発の基盤となる可能性が期待できるものでその学術的・社会的意義は大きい。

Report

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

    (8 results)

All 2021 2020 2019

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 7 results) Presentation (1 results)

  • [Journal Article] Multi-tumor analysis of cancer-stroma interactomes of patient-derived xenografts unveils the unique homeostatic process in renal cell carcinomas2021

    • Author(s)
      Sueyoshi Kuniyo、Komura Daisuke、Katoh Hiroto、Yamamoto Asami、Onoyama Takumi、Chijiwa Tsuyoshi、Isagawa Takayuki、Tanaka Mariko、Suemizu Hiroshi、Nakamura Masato、Miyagi Yohei、Aburatani Hiroyuki、Ishikawa Shumpei
    • Journal Title

      iScience

      Volume: 24 Issue: 11 Pages: 103322-103322

    • DOI

      10.1016/j.isci.2021.103322

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Establishment of Novel Protein Interaction Assays between Sin3 and REST Using Surface Plasmon Resonance and Time-Resolved Fluorescence Energy Transfer2021

    • Author(s)
      Harada, M., Nagai, J., Kurata, R., Cui, X., Isagawa, T., Semba, H., ... & Yonezawa, T.
    • Journal Title

      International journal of molecular sciences

      Volume: 22(5) Issue: 5 Pages: 2323-2323

    • DOI

      10.3390/ijms22052323

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Febuxostat, a Xanthine Oxidase Inhibitor, Decreased Macrophage Matrix Metalloproteinase Expression in Hypoxia.2020

    • Author(s)
      Wei S, Isagawa T, Eguchi M, Sato D, Tsukano H, Miyata K, Oike Y, Takeda N, Ikeda S, Kawano H, Maemura K.
    • Journal Title

      Biomedicines.

      Volume: 8(11) Issue: 11 Pages: 470-470

    • DOI

      10.3390/biomedicines8110470

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A long noncoding RNA regulates inflammation resolution by mouse macrophages through fatty acid oxidation activation2020

    • Author(s)
      Nakayama Yukiteru、Fujiu Katsuhito、Yuki Ryuzaburo、Oishi Yumiko、Morioka Masaki Suimye、Isagawa Takayuki、Matsuda Jun、Oshima Tsukasa、Matsubara Takumi、Sugita Junichi、Kudo Fujimi、Kaneda Atsushi、Endo Yusuke、Nakayama Toshinori、Nagai Ryozo、Komuro Issei、Manabe Ichiro
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 117 Issue: 25 Pages: 14365-14375

    • DOI

      10.1073/pnas.2005924117

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cell Cycle Perturbation Induces Collagen Production in Fibroblasts2019

    • Author(s)
      Wake M, Takeda N, Isagawa T, Sato T, Nakagama Y, Morioka MS, Hirota Y, Asagiri M, Maemura K, Manabe I, Tanabe K, Komuro I.
    • Journal Title

      International Heart Journal

      Volume: 60 Issue: 4 Pages: 958-963

    • DOI

      10.1536/ihj.18-710

    • NAID

      130007684138

    • ISSN
      1349-2365, 1349-3299
    • Year and Date
      2019-07-30
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Macrophage hypoxia signaling regulates cardiac fibrosis via Oncostatin M.2019

    • Author(s)
      Abe H, Takeda N, Isagawa T, Semba H, Nishimura S, Morioka MS, Nakagama Y, Sato T, Soma K, Koyama K, Wake M, Katoh M, Asagiri M, Neugent ML, Kim JW, Stockmann C, Yonezawa T, Inuzuka R, Hirota Y, Maemura K, Yamashita T, Otsu K, Manabe I, Nagai R, Komuro I.
    • Journal Title

      Nature Communications

      Volume: 10 Issue: 1 Pages: 2824-2833

    • DOI

      10.1038/s41467-019-10859-w

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Therapeutic targeting of mitochondrial ROS ameliorates murine model of volume overload cardiomyopathy.2019

    • Author(s)
      Okamura K, Nakagama Y, Takeda N, Soma K, Sato T, Isagawa T, Kido Y, Sakamoto M, Manabe I, Hirata Y, Komuro I, Ono M
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 141 Issue: 1 Pages: 56-63

    • DOI

      10.1016/j.jphs.2019.09.005

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 低酸素シグナルによる動脈硬化プラーク脆弱化の分子機構2019

    • Author(s)
      魏 碩俣, 砂河 孝行, 江口 正倫, 佐藤 大輔, 池田 聡司, 河野 浩章, 前村 浩二
    • Organizer
      第42 回日本分子生物学会年会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-12-25  

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