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Mechanism of Cardiac Regeneration and Developmental Heterochrony

Research Project

Project/Area Number 21K18273
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 53:Organ-based internal medicine and related fields
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) 清成 寛  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 (40721048)
魚崎 英毅  自治医科大学, 医学部, 准教授 (90740803)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2023: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2022: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2021: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Keywords心筋梗塞 / 心筋再生 / 心筋細胞 / AMPK / オポッサム / 心臓再生 / 細胞周期 / AMPKシグナル / ミトコンドリア / 非モデル生物 / RNA sequencing
Outline of Research at the Start

心疾患は現代において最も重大な疾患の一つであり,新たな心筋再生法の開発は喫緊の課題である.ほとんどの哺乳類では,出生によって新生仔が子宮外環境に置かれることにより,心筋は器官形成期から成熟期へ切り替わり,心筋細胞が細胞周期を停止し心筋再生能が失われる.いっぽう同じ哺乳類でも有袋類は超未熟仔の状態で誕生し,器官形成の大部分を子宮外環境で行うため,出生のタイミングが器官形成から成熟への切り替わりと同調しない.本研究では,オポッサムとマウスの出生後の心筋発生・成熟,心筋再生能について比較する.それによりオポッサムに固有の心筋増殖能維持機構を同定し,新たな心筋再生誘導法確立の基盤を構築する.

Outline of Final Research Achievements

Early neonatal mammals can regenerate the myocardium through the proliferation of cardiomyocytes for only a short period of time after birth. We have shown that neonatal opossum continues cardiomyocyte proliferation for at least 2 weeks after birth. In addition, the opossum heart exhibited regenerative capacity in this period. We performed RNA sequencing and subsequent immunohistochemical, pharmacological and genetic analyses and demonstrated that the AMPK signaling is an evolutionary conserved signaling pathway that regulates cardiomyocyte cell cycle arrest in the postnatal mammalian heart.

Academic Significance and Societal Importance of the Research Achievements

われわれは出生後に心筋を再生する能力が失われる時期が異なる2種類の哺乳類動物,すなわちマウスとオポッサムとを比較することにより,これまでに明らかにされることがなかった進化的に保存されたシグナル伝達経路が心筋を再生する能力を制御していることを明らかにした.このシグナル伝達経路は新たな心疾患治療法のための標的になりうると考えられる.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Comments on the Screening Results   Research-status Report
  • Research Products

    (25 results)

All 2023 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: 6 results,  Invited: 16 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 Research-status 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 Research-status 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 Research-status 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 Research-status 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 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Metabolic Steering of Cardiac Regeneration2023

    • Author(s)
      木村 航
    • Organizer
      創基151年筑波大学開学50周年記念TARAシンポジウム
    • Related Report
      2023 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2023

    • Author(s)
      木村 航
    • Organizer
      JST創発的研究支援事業「融合の場」第2回公開シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 代謝変動と心筋再生2023

    • Author(s)
      木村 航
    • Organizer
      第12回細胞再生医療研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 出生による代謝変動と心筋再生能2023

    • Author(s)
      木村 航
    • Organizer
      心・腎・代謝領域 Scientific Exchange Meeting 2024
    • Related Report
      2023 Annual Research Report
    • Invited
  • [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 Research-status 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」
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Prolonged regenerative capacity in the neonatal opossum heart2022

    • Author(s)
      木村航
    • Organizer
      BCVS Scientific Sessions 2022
    • Related Report
      2022 Research-status 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 Research-status 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 Research-status 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 Research-status Report
    • Int'l Joint Research / 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 Research-status 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 Research-status Report
    • Invited
  • [Presentation] Metabolic Regulation of Neonatal Cardiac Regeneration2022

    • 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 Research-status Report
    • Invited
  • [Presentation] HIF signaling and cardiovascular diseases2022

    • Author(s)
      木村 航
    • Organizer
      第86回日本循環器学会学術集会
    • Related Report
      2021 Research-status 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
      2021 Research-status 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
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] BITC induces cardiomyocyte proliferation and heart regeneration2021

    • Author(s)
      坂口 あかね
    • Organizer
      第3回 日独合同若手ミーティング 「幹細胞・発生・再生-新たな組織形成」
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] BITC induces cardiomyocyte proliferation and heart regeneration2021

    • Author(s)
      坂口 あかね、川﨑 美和
    • Organizer
      第38回国際心臓研究学会日本部会総会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ベンジルイソチオシアネートの投与は心筋細胞の分裂を誘導し、幼若期の心臓再生を可能にする2021

    • Author(s)
      坂口 あかね
    • Organizer
      第20回日本心臓血管発生研究会
    • Related Report
      2021 Research-status Report
  • [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 Research-status Report
    • Invited

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Published: 2021-07-13   Modified: 2025-01-30  

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