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Regulation of skeletal muscle energy metabolism and differentiation.

Research Project

Project/Area Number 20K06359
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 42010:Animal production science-related
Research InstitutionTokai University (2021-2022)
Utsunomiya University (2020)

Principal Investigator

Sato Yusuke  東海大学, 農学部, 特任准教授 (50589520)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords骨格筋 / エネルギー代謝 / 分化 / ミトコンドリア / Apobec2 / C2C12 / ミトコンドリアの呼吸 / 脂肪
Outline of Research at the Start

骨格筋は単核の筋芽細胞が分化・融合した多核の筋線維の集合体であり、生体最大のエネルギー代謝器官である。近年、筋細胞の「分化」と「エネルギー代謝」の両方を制御する遺伝子が複数存在することがわかってきた。これまでの研究から、脱アミノ化酵素Apobec2が筋細胞の「分化」および「エネルギー代謝」の両方を負に制御する可能性を見出した。本研究では、Apobec2が筋細胞のステージごとに異なる機能を有する可能性について細胞および生体レベルで検証する。筋細胞の「分化」および「エネルギー代謝」制御を理解することは、ヒトや家畜の骨格筋量の維持あるいは形質の向上に資する。

Outline of Final Research Achievements

Skeletal muscles are composed of multinucleated myofibers that differentiate and fuse from mononuclear myoblasts and are the largest energy metabolizing organs in the body. In this study, the mechanism by which muscle cell differentiation and energy metabolism are controlled by the deaminase enzyme Apobec2 was investigated. Forced expression of Apobec2 in C2C12 myoblasts significantly suppressed the differentiation of myoblasts into myotubes. In addition, knockdown of Apobec2 by siRNA increased mitochondrial respiration in C2C12 myoblasts. These results suggest that Apobec2 may regulate both differentiation and energy metabolism in skeletal muscle cells.

Academic Significance and Societal Importance of the Research Achievements

筋細胞の分化・代謝の制御機構を理解することができれば、骨格筋量の維持・増加あるいは性質をコントロールできるようになる。本研究により、筋細胞の代謝・分化の制御機構の一旦が明らかになった。研究成果は、サルコペニアの予防やスポーツ科学に貢献するだけでなく、昨今注目が集まる培養肉の開発に資すると考える。

Report

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

    (5 results)

All 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results)

  • [Journal Article] Administration of Aspergillus oryzae suppresses DSS-induced colitis2022

    • Author(s)
      Nomura Ryo、Tsuzuki Sho、Kojima Takaaki、Nagasawa Mao、Sato Yusuke、Uefune Masayoshi、Baba Yasunori、Hayashi Toshiya、Nakano Hideo、Kato Masashi、Shimizu Motoyuki
    • Journal Title

      Food Chemistry: Molecular Sciences

      Volume: 4 Pages: 100063-100063

    • DOI

      10.1016/j.fochms.2021.100063

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Functional analysis reveals that Tinagl1 is required for normal muscle development in mice through the activation of ERK signaling2022

    • Author(s)
      Sato Yoriko、Kawashima Keisuke、Fukui Emiko、Matsumoto Hiromichi、Yoshizawa Fumiaki、Sato Yusuke
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Molecular Cell Research

      Volume: 1869 Issue: 9 Pages: 119294-119294

    • DOI

      10.1016/j.bbamcr.2022.119294

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Quercetin enhances fatty acid β-oxidation by inducing lipophagy in AML12 hepatocytes2021

    • Author(s)
      Fukaya Misato、Sato Yoriko、Kondo Shinji、Adachi Shin-ichi、Yoshizawa Fumiaki、Sato Yusuke
    • Journal Title

      Heliyon

      Volume: 7 Issue: 6 Pages: e07324-e07324

    • DOI

      10.1016/j.heliyon.2021.e07324

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Energy metabolism profile of the effects of amino acid treatment on hepatocytes: Phenylalanine and phenylpyruvate inhibit glycolysis of hepatocytes2021

    • Author(s)
      Suzuki Reiko、Sato Yoriko、Fukaya Misato、Suzuki Daisuke、Yoshizawa Fumiaki、Sato Yusuke
    • Journal Title

      Nutrition

      Volume: 82 Pages: 111042-111042

    • DOI

      10.1016/j.nut.2020.111042

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] An Increase in Liver Polyamine Concentration Contributes to the Tryptophan-Induced Acute Stimulation of Rat Hepatic Protein Synthesis2020

    • Author(s)
      Koike Shinichiro、Kabuyama Yukihito、Obeng Kodwo Amuzuah、Sugahara Kunio、Sato Yusuke、Yoshizawa Fumiaki
    • Journal Title

      Nutrients

      Volume: 12 Issue: 9 Pages: 2665-2665

    • DOI

      10.3390/nu12092665

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access

URL: 

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

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