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Control of muscular function by manipulating spatiotemporal dynamics with light

Research Project

Project/Area Number 17KK0164
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research)

Allocation TypeMulti-year Fund
Research Field Biomedical engineering/Biomaterial science and engineering
Research InstitutionTokyo Medical and Dental University

Principal Investigator

ASANO Toshifumi  東京医科歯科大学, 大学院医歯学総合研究科, 助教 (30552476)

Project Period (FY) 2018 – 2021
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Keywords骨格筋 / 筋収縮 / 光遺伝学 / 萎縮 / 筋分化 / 細胞融合 / 細胞内イオン / 筋機能
Outline of Final Research Achievements

We developed a skeletal muscle contraction model that can control with light to investigate the activity dependent modulation and maturation of skeletal muscle development. Photosensitive muscle fibers were reconstructed from satellite stem cells which express light-sensitive actuators, channelrhodopsin-2 (ChR2), and induced contractile responses synchronized with light. Our results suggested that muscle function is maintained by chronic optogenetic stimulation.

Academic Significance and Societal Importance of the Research Achievements

骨格筋は損傷しても速やかに回復することのできる再生能力に富んだ組織であり、筋組織の維持機構を明らかにすることは重要である。本研究では神経活動を伴わない収縮運動が骨格筋の形成や維持にどのように働いているかを評価する運動モデルの基盤技術を構築した。光で運動を制御できる骨格筋は収縮の強度や時間、活性化する筋線維を正確にコントロールすることができ、創薬研究や筋疾患の治療法への応用が期待できる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (5 results)

All 2021 2020 2018

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

  • [Int'l Joint Research] University of Bonn(ドイツ)2018

    • Year and Date
      2018-10-16
    • Related Report
      2021 Annual Research Report
  • [Journal Article] A muscle fatigue-like contractile decline was recapitulated using skeletal myotubes from Duchenne muscular dystrophy patient-derived iPSCs2021

    • Author(s)
      Uchimura Tomoya、Asano Toshifumi、Nakata Takao、Hotta Akitsu、Sakurai Hidetoshi
    • Journal Title

      Cell Reports Medicine

      Volume: 2 Issue: 6 Pages: 100298-100298

    • DOI

      10.1016/j.xcrm.2021.100298

    • NAID

      120007142199

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of Optogenetics for Muscle Cells and Stem Cells2021

    • Author(s)
      Asano Toshifumi、Teh Daniel Boon Loong、Yawo Hiromu
    • Journal Title

      Advances in Experimental Medicine and Biology

      Volume: 1293 Pages: 359-375

    • DOI

      10.1007/978-981-15-8763-4_23

    • ISBN
      9789811587627, 9789811587634
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 骨格筋芽細胞における細胞内カルシウムの特異的操作2020

    • Author(s)
      浅野 豪文、中田 隆夫
    • Organizer
      第19回日本再生医療学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 骨格筋芽細胞における細胞内カルシウムの特異的操作2020

    • Author(s)
      浅野 豪文, 中田 隆夫
    • Organizer
      第19回日本再生医療学会総会
    • Related Report
      2019 Research-status Report

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Published: 2018-01-25   Modified: 2023-01-30  

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