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Analysis of sensor proteins which receive signals of muscle contraction

Research Project

Project/Area Number 17K19219
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Agricultural chemistry and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Shimizu Makoto  東京大学, 大学院農学生命科学研究科(農学部), 特任准教授 (40409008)

Project Period (FY) 2017-06-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords骨格筋 / 酸化修飾 / 電気刺激 / C2C12 / 筋肥大 / センサータンパク質 / 酸化ストレス / タンパク質修飾
Outline of Final Research Achievements

In several countries, aging society is a serious problem. Increase of elder people who need care leads to an enlargement of costs of medical and nursing cares. Sarcopenia, an age-related muscle loss, is a major cause a bedridden, suggesting that prevention of sarcopenia is a urgent issue. An appropriate oxidative stress derived from exercise is important for skeletal muscle hypertrophy. However, a mechanism how oxidative stress regulates hypertrophy is unknown. In this study, we investigate a role of oxidative stress signaling based on a protein modification, and attempted an application of food chemistry.

Academic Significance and Societal Importance of the Research Achievements

我が国は超高齢社会であり、寝たきり・要介護の繋がるサルコペニアをいかに予防・軽減するかが喫緊の課題である。骨格筋量の制御に関しては、タンパク質分解酵素やIGF1による研究が多数報告されている。本研究では、これまであまり着目されていない酸化修飾について研究を進めることで、サルコペニア予防の多角化に繋がることが期待される。また、in vitroで骨格筋収縮実験系を用いて、筋収縮に応答する酸化修飾タンパク質の候補分子を見出した。本研究をさらに継続することで、サルコペニア予防の選択肢が広がることが期待される。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (5 results)

All 2021 2020

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (2 results)

  • [Journal Article] Muscle-specific TGR5 overexpression improves glucose clearance in glucose-intolerant mice2021

    • Author(s)
      Sasaki Takashi、Watanabe Yuichi、Kuboyama Ayane、Oikawa Akira、Shimizu Makoto、Yamauchi Yoshio、Sato Ryuichiro
    • Journal Title

      Journal of Biological Chemistry

      Volume: 296 Pages: 100131-100131

    • DOI

      10.1074/jbc.ra120.016203

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Functional effect of nobiletin as a food-derived allosteric modulator of mouse CRFR2β in skeletal muscle2020

    • Author(s)
      Chikazawa Miho、Moriwaki Yoshitaka、Uramoto Mari、Yamauchi Yoshio、Shimizu Makoto、Shimizu Kentaro、Sato Ryuichiro
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 529 Issue: 2 Pages: 328-334

    • DOI

      10.1016/j.bbrc.2020.03.189

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polymethoxyflavones in orange peel extract prevent skeletal muscle damage induced by eccentric exercise in rats2020

    • Author(s)
      Suzuki Toshihide、Shimizu Makoto、Yamauchi Yoshio、Sato Ryuichiro
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 85 Issue: 2 Pages: 440-446

    • DOI

      10.1093/bbb/zbaa036

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 非アルコール性脂肪肝を制御する新たな転写因子の同定2020

    • Author(s)
      清水誠、不野歩美、梅村真理子、高橋勇二、山内祥生、佐藤隆一郎
    • Organizer
      日本農芸化学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 核内受容体LXRによる骨格筋機能制御2020

    • Author(s)
      清水誠、小野敦子、近澤未歩、山内祥生、佐藤隆一郎
    • Organizer
      日本栄養・食糧学会
    • Related Report
      2020 Annual Research Report

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Published: 2017-07-21   Modified: 2022-01-27  

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