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Identification of factor promoting MuSC expansion like a resistance training

Research Project

Project/Area Number 20K21757
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 59:Sports sciences, physical education, health sciences, and related fields
Research InstitutionOsaka University

Principal Investigator

FUKADA So-ichiro  大阪大学, 薬学研究科, 准教授 (20432445)

Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsカルシトニン受容体 / 静止期 / 自発運動 / gp130 / Thrombospondin-1 / 筋サテライト細胞 / レジスタンストレーニング / 機械的負荷 / 運動 / 肥大 / 筋線維核
Outline of Research at the Start

レジスタンストレーニングや運動による骨格筋幹細胞(MuSC)の活性化・増殖は筋損傷依存である説が強い。しかし申請者は,MuSCの活性化・増殖には筋損傷は必要ない事を示す独自の成果を得ている。増殖したMuSCは最終的に筋線維に核を供給するため,MuSCの操作は筋線維の若返り・機能改善につながる可能性が期待できる。そこで,本申請課題では「非損傷下で,運動依存的にMuSCの増殖を誘導する因子の同定」を目指す。

Outline of Final Research Achievements

In this application, the mechanism of exercise-dependent proliferation of MuSCs in unloaded muscle observed in CalcR-mutant mice was found to be a disruption of the CalcR-PKA-Yap1 pathway. Thrombospondin-1, which increases in a resistance training-dependent manner, is not detectable in blood, suggesting that another factor may be responsible for the phenotypes of CalcR-mutant mice. Conversely, IL-6, a typical resistance training-dependent factor, may not be as important for MuSC proliferation in the resistance model.

Academic Significance and Societal Importance of the Research Achievements

MuSCは骨格筋にかかる負荷の違いにより静止期と活動期を行き来する。その根底のメカニズムは,申請者が追究してきたCalcR-PKA-Yap1経路と運動依存的に血液中で増加する因子または,局所で発現するThrombospondin-1などの因子であることが明らかとなった。局所,全身性の因子を組み合わせて効率よくMuSCを増殖させ,筋線維核を増加させることができれば,筋線維核の補充による新しい治療法につながることを提示できた。

Report

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

    (12 results)

All 2021 2020

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results) Book (2 results)

  • [Journal Article] Relayed signaling between mesenchymal progenitors and muscle stem cells ensures adaptive stem cell response to increased mechanical load.2021

    • Author(s)
      Kaneshige A, Kaji T, Zhang L, Saito H, Nakamura A, Kurosawa T, Ikemoto-Uezumi M, Tsujikawa K, Seno S, Hori M, Saito Y, Matozaki T, Maehara K, Ohkawa Y, Potente M, Watanabe S, Braun T, Uezumi A, Fukada SI.
    • Journal Title

      Cell Stem Cell.

      Volume: 29 Issue: 2 Pages: 265-280

    • DOI

      10.1016/j.stem.2021.11.003

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Regulation of muscle hypertrophy: Involvement of the Akt-independent pathway and satellite cells in muscle hypertrophy2021

    • Author(s)
      Fukada SI, Ito N.
    • Journal Title

      Exp Cell Res

      Volume: 409 Issue: 2 Pages: 112907-112907

    • DOI

      10.1016/j.yexcr.2021.112907

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Exercise/Resistance Training and Muscle Stem Cells.2021

    • Author(s)
      Fukada SI, Nakamura A.
    • Journal Title

      Endocrinol Metab (Seoul).

      Volume: 36 Issue: 4 Pages: 737-744

    • DOI

      10.3803/enm.2021.401

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of damage and management in muscle hypertrophy: Different behaviors of muscle stem cells in regeneration and hypertrophy2020

    • Author(s)
      Fukada So-ichiro、Akimoto Takayuki、Sotiropoulos Athanassia
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Molecular Cell Research

      Volume: 1867 Issue: 9 Pages: 118742-118742

    • DOI

      10.1016/j.bbamcr.2020.118742

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dlk1 regulates quiescence in calcitonin receptor-mutant muscle stem cells2020

    • Author(s)
      Zhang Lidan、Kubota Manami、Nakamura Ayasa、Kaji Takayuki、Seno Shigeto、Uezumi Akiyoshi、Andersen Ditte Caroline、Jensen Charlotte Harken、Fukada So-ichiro
    • Journal Title

      STEM CELLS

      Volume: 39 Issue: 3 Pages: 306-317

    • DOI

      10.1002/stem.3312

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 運動負荷依存的に筋線維核が増加する機構2021

    • Author(s)
      深田 宗一朗
    • Organizer
      第94回日本薬理学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Calcitonin receptor and muscle satellite cells2021

    • Author(s)
      So-ichiro Fukada
    • Organizer
      Berlin Muscle Club
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Exercise and muscle stem cells2020

    • Author(s)
      深田 宗一朗
    • Organizer
      第43回日本分子生物学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Resistance training and muscle stem cell2020

    • Author(s)
      So-ichiro Fukada
    • Organizer
      AOCE-SICEM
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular and Cellular regulation of MuSCs in loaded muscle2020

    • Author(s)
      So-ichiro Fukada
    • Organizer
      Muscle Science Talks
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 筋肉の老化のメカニズム「老化と筋サテライト細胞」2020

    • Author(s)
      東元辰賢,深田宗一朗
    • Total Pages
      68
    • Publisher
      ニューサイエンス社, 細胞
    • Related Report
      2020 Research-status Report
  • [Book] 実験医学2020年10月号「筋肥大時の筋サテライト細胞の動態・分化様式―多核細胞である筋線維がさらに核を増やす意義・機構」2020

    • Author(s)
      梶 貴志,深田宗一朗
    • Total Pages
      135
    • Publisher
      羊土社
    • ISBN
      4758125368
    • Related Report
      2020 Research-status Report

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Published: 2020-08-03   Modified: 2023-01-30  

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