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Mechanism of cardiomyocyte cell cycle regulation through stress response pathways

Research Project

Project/Area Number 20H03680
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Kimura Wataru  国立研究開発法人理化学研究所, 生命機能科学研究センター, チームリーダー (60452182)

Co-Investigator(Kenkyū-buntansha) 升本 英利  国立研究開発法人理化学研究所, 生命機能科学研究センター, 上級研究員 (70645754)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2021: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2020: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywords心筋梗塞 / 心筋再生 / 心筋細胞 / AMPK / ストレス応答 / 細胞周期 / 酸化ストレス
Outline of Research at the Start

哺乳類の成体の心臓では,大部分の心筋細胞が細胞周期に入る能力を持たず,そのため我々には心筋再生能がない.申請者らはこれまでに,哺乳類では生理的条件下での機械刺激ストレスおよび酸化ストレス応答が心筋細胞の細胞周期停止を誘導・維持していることを報告した.さらに,機械刺激ストレス応答経路,酸化ストレス応答経路のシグナル伝達経路の候補をそれぞれ同定してきている.そこで本研究では,機械刺激応答と酸化ストレス応答が心筋細胞の細胞周期を制御する分子メカニズムを解析する.それによって成体の心筋細胞の細胞周期再エントリーを実現し,新たな心筋再生法の確立の基盤となる知見を得ることを目標とする.

Outline of Final Research Achievements

Although adult mammals do not possess the capacity to regenerate the heart following injuries such as myocardial infarction, fetal and early neonatal mammals do possess such capacity. In previous studies, we have shown that oxidative stress response pathways play critical roles in regulating regenerative abilities in the heart in mammals. In the current study, we sought to identify pathways that control such stress response pathways in the neonatal heart. As a result, we identified AMPK signaling as a critical regulator of the cardiomyocyte cell cycle and capacity for cardiac regeneration in the postnatal mammalian heart.

Academic Significance and Societal Importance of the Research Achievements

本研究は,哺乳類の心筋再生を制御する分子機構の一端を明らかにするものである.これらの成果をもとに,さらに研究を進めていく.具体的には,新生仔において,あるいはAMPKシグナルの上流,下流においてどのような機構がはたらき心筋再生能が喪失するかを解明し,さらにAMPK自体や上流,下流の阻害によって成体において心筋再生が誘導されるかを検討する.これらの研究により,新たな心筋再生法の開発につながる基盤的知見が得られるものと期待される.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (25 results)

All 2022 2021

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (20 results) (of which Int'l Joint Research: 4 results,  Invited: 20 results)

  • [Journal Article] Prolonged Myocardial Regenerative Capacity in Neonatal Opossum2022

    • Author(s)
      Nishiyama Chihiro、Saito Yuichi、Sakaguchi Akane、Kaneko Mari、Kiyonari Hiroshi、Xu Yuqing、Arima Yuichiro、Uosaki Hideki、Kimura Wataru
    • Journal Title

      Circulation

      Volume: 146 Issue: 2 Pages: 125-139

    • DOI

      10.1161/circulationaha.121.055269

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diurnal shift of mouse activity by the deficiency of an ageing-related gene <i>Lmna</i>2022

    • Author(s)
      Kawakami Satoshi、Yoshitane Hikari、Morimura Taiki、Kimura Wataru、Fukada Yoshitaka
    • Journal Title

      The Journal of Biochemistry

      Volume: - Issue: 5 Pages: 509-518

    • DOI

      10.1093/jb/mvac015

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gene expression profiles of human cerebral organoids identify PPAR pathway and PKM2 as key markers for oxygen-glucose deprivation and reoxygenation2021

    • Author(s)
      Naoki Iwasa, Takeshi K. Matsui, Naohiko Iguchi, Kaoru Kinugawa, Naritaka Morikawa, Yoshihiko M. Sakaguchi, Tomo Shiota, Shinko Kobashigawa et. al.
    • Journal Title

      Frontiers in Cellular Neuroscience

      Volume: - Pages: 605030-605030

    • DOI

      10.3389/fncel.2021.605030

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Roles of Phase Separation for Cellular Redox Maintenance2021

    • Author(s)
      Saito Yuichi、Kimura Wataru
    • Journal Title

      Frontiers in Genetics

      Volume: 12

    • DOI

      10.3389/fgene.2021.691946

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Metabolic regulation of cardiac regeneration: roles of hypoxia, energy homeostasis, and mitochondrial dynamics2021

    • Author(s)
      Sakaguchi Akane、Kimura Wataru
    • Journal Title

      Current Opinion in Genetics & Development

      Volume: 70 Pages: 54-60

    • DOI

      10.1016/j.gde.2021.05.009

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Interspecies comparison between eutherian and marsupial mammals identifies how cardiomyocytes adapt to switching from intrauterine to postnatal environment2022

    • Author(s)
      木村航
    • Organizer
      第55回 日本発生生物学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 心筋の代謝と再生をつなぐメカニズムの解明2022

    • Author(s)
      木村航
    • Organizer
      JST創発的研究支援事業「融合の場」第1回公開シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Prolonged regenerative capacity in the neonatal opossum heart2022

    • Author(s)
      木村航
    • Organizer
      BCVS Scientific Sessions 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 哺乳類種間比較による新生仔心筋再生機構の同定2022

    • Author(s)
      木村航
    • Organizer
      第51回日本心臓管作動物質学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] マウス・オポッサム間比較による出生後の心筋成長スイッチング機構の解明2022

    • Author(s)
      木村航
    • Organizer
      第95回日本生化学会大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Mammalian interspecies comparison identifies AMPK as a postnatal cardiomyocyte cell cycle regulator2022

    • Author(s)
      木村航
    • Organizer
      CVMW2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Role of oxidative metabolism in the regulation of mammalian cardiac regeneration2022

    • Author(s)
      木村航
    • Organizer
      The 1st International Conference of C-MARS (Cardiovascular, Metabolic, and Aging Research Symposium)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 哺乳類新生仔を用いた心筋再生研究2022

    • Author(s)
      木村航
    • Organizer
      第22回日本再生医療学会総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ”HIF signaling and cardiovascular diseases”2022

    • Author(s)
      木村 航
    • Organizer
      第86回日本循環器学会学術集会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 心筋再生研究とイメージング2022

    • Author(s)
      木村 航
    • Organizer
      第8回極みプロジェクトシンポジウム/第7回CRESTミーティング
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 心筋の代謝と再生をつなぐメカニズム2021

    • Author(s)
      木村航
    • Organizer
      第一回神戸茶話会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 出生による心筋再生スイッチングの哺乳類種間差2021

    • Author(s)
      木村航
    • Organizer
      第94回日本生化学会 シンポジウム1S06m「哺乳類の代謝変動による環境適応とその異常」
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Metabolic Regulation of Neonatal Cardiac Regeneration2021

    • Author(s)
      木村航
    • Organizer
      CVMW2021‐心血管代謝週間 ISHRシンポジウム1(JMCC Symposium)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Diurnal shift of mouse activity by the deficiency of an aging-related gene Lmna2021

    • Author(s)
      木村航
    • Organizer
      Journal of Biochemistry
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ”HIF signaling and cardiovascular diseases”2021

    • Author(s)
      木村航
    • Organizer
      第86回日本循環器学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 心筋再生研究とイメージング2021

    • Author(s)
      木村航
    • Organizer
      第8回極みプロジェクトシンポジウム/第7回CRESTミーティング
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 心筋の代謝と再生をつなぐメカニズム2021

    • Author(s)
      木村 航
    • Organizer
      第一回神戸茶話会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] BITC induces mitochondrial fission and cardiomyocyte proliferation.2021

    • Author(s)
      坂口 あかね、川﨑 美和、木村 航
    • Organizer
      生理研研究会 比較統合生理学的観点からの循環生理の解析
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 出生による心筋再生スイッチングの哺乳類種間差2021

    • Author(s)
      木村 航
    • Organizer
      第94回日本生化学会 シンポジウム1S06m「哺乳類の代謝変動による環境適応とその異常」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Metabolic Regulation of Neonatal Cardiac Regeneration2021

    • Author(s)
      木村 航
    • Organizer
      CVMW2021‐心血管代謝週間 ISHRシンポジウム1(JMCC Symposium)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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