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Effects of hyperoxia on proliferation and differentiation of muscle satellite cells

Research Project

Project/Area Number 16K01837
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Applied health science
Research InstitutionTeikyo University

Principal Investigator

Kawada Shigeo  帝京大学, 医療技術学部, 講師 (20376601)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords骨格筋 / 再生 / 高気圧高酸素 / 筋サテライト細胞 / 高酸素分圧 / 低酸素分圧 / 高酸素 / 酸素分圧 / 細胞増殖 / 酸化障害 / 筋再生
Outline of Final Research Achievements

Injured skeletal muscles can be regenerated resulting from enhanced proliferation of muscle satellite cells which are stem cells for skeletal muscle. It has been reported that hyperoxic conditions accelerate regeneration of injured skeletal muscles. However, it is not well understood whether hyperoxic conditions directly stimulate muscle satellite cell proliferation. To resolve this issue, C2C12 cells, a stem cell line of mouse skeletal muscle, were exposed to hyperoxic conditions in this study. The hyperoxic conditions did not stimulate muscle proliferation regardless of duration of exposure to hyperoxia. This result indicates that hyperoxic conditions at least do not directly enhance muscle satellite cell proliferation.

Academic Significance and Societal Importance of the Research Achievements

骨格筋はヒトが移動する際には必須の組織であるため、この損傷はヒトの生活の質を極めて低下させる。そこで、仮に骨格筋を損傷してしまった場合は、可能な限り早期に回復させることが望ましい。高気圧高酸素環境が骨格筋損傷を促進させるという報告はあるが、そのメカニズムについては詳細には明らかになっていない。そこで、マウス筋幹細胞であるC2C12細胞を用いて、高酸素環境が細胞増殖能を直接的に刺激するのかどうかを検討したところ、高酸素環境は直接的には細胞増殖能を高めないことが明らかとなった。このことは、高酸素環境が骨格筋損傷の回復を促進させる際には、他の要因を介した間接的効果である可能性を示唆する。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (3 results)

All 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Book (1 results)

  • [Journal Article] Evaluation of bilateral force deficit in shoulder flexion using a handheld dynamometer in healthy subjects2017

    • Author(s)
      Shimada K, Onishi T, Ogawa Y, Yamauchi J, Kawada S
    • Journal Title

      Journal of Physical Therapy Science

      Volume: 29 Issue: 8 Pages: 1336-1340

    • DOI

      10.1589/jpts.29.1336

    • NAID

      130005966735

    • ISSN
      0915-5287, 2187-5626
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impairment of cold injury-induced muscle regeneration in mice receiving a combination of bone fracture and alendronate treatment2017

    • Author(s)
      Kawada S, Harada A, Hashimoto N
    • Journal Title

      PLoS ONE

      Volume: 12 Issue: 7 Pages: e0181457-e0181457

    • DOI

      10.1371/journal.pone.0181457

    • URL

      https://pure.teikyo.jp/en/publications/7cdb1ca7-b378-4134-971e-742942a5f994

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Book] スポーツ医科学トピックス22018

    • Author(s)
      川田茂雄
    • Total Pages
      160
    • Publisher
      ブックハウスHD
    • ISBN
      9784909011091
    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2020-03-30  

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