• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Basic research to prevent decline in motor function in the elderly: Project to explore the role of "intramuscular tendons"

Research Project

Project/Area Number 20K09895
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57010:Oral biological science-related
Research InstitutionTokyo Dental College

Principal Investigator

Abe Shinichi  東京歯科大学, 歯学部, 教授 (40256300)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords筋内腱 / 運動器 / 加齢変化 / 筋腱接合部 / Sox9 / 筋付着部 / 咀嚼筋腱・腱膜過形成症 / Myostatin / 筋線維 / 腱組織
Outline of Research at the Start

高齢者における顎関節など関節部の機能低下は、筋組織の加齢変化だけでなく筋束断端に付着する腱・骨という連結部の構造破壊によることも多い。すなわち運動器を構成する組織複合的な構造維持が高齢者の機能低下を防ぐ重要な鍵となる。「骨-腱-骨複合体」の強固な連結を維持するために必要な筋内腱をつくる細胞の供給源は、筋芽細胞と腱芽細胞の遊走と形質転換であると申請者のこれまでの研究成果から考えているが、その詳細と筋内腱の形態形成の制御機構についてはわかっていない。本研究では、筋内腱の細胞供給先の特定と形成メカニズムを解明する。

Outline of Final Research Achievements

To clarify the role of intramuscular tendons at the attachment site of muscle to bone, we considered the mechanism of maintenance of the muscle-tendon-bone complex from the viewpoint of regeneration of tendons at the attachment site of muscle, which is part of the musculoskeletal system. Six-week-old C57BL/6J mice were used as study materials. To confirm the recovery of motor function, the Achilles tendon was injured with a scalpel as the area of interest. The mice were divided into four stages: a sham group (sham operation), a group 1 week after injury (POW1), a group 2 weeks after injury (POW2), and a group 4 weeks after injury (POW4). It was revealed that Sox9 is expressed at the injury site during tendon regeneration. It was also suggested that Sox9-positive cells that accumulate at the injury site are involved in tendon regeneration by switching stem cells that accumulate after injury to Sox9.

Academic Significance and Societal Importance of the Research Achievements

高齢者の運動機能低下防止のため、「骨-腱-骨複合体」の強固な連結を維持することが重要となるが、その連結には筋内腱が常に機能することが重要で、本研究成果から得られた関連因子(Sox9)を発現させるための研究へつなげる研究である。高齢者の身体内の関節機能の衰えは「ロコモティブシンドローム」と称され、健康寿命を伸ばすためには避けなければならないことが知られてきている。今後は、運動習慣の改善などで「骨-腱-骨複合体」にSox9が発現し筋内腱が強固な連結に影響を与え続ける、という仮説を立証していくことで、本研究がその社会的意義の基盤研究となることを立証できる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (2 results)

  • [Journal Article] Chronological changes in expression and localisation of Sox9 from achilles tendon injury to functional recovery in mice.2023

    • Author(s)
      Watanabe G, Yamamoto Y, Taniguchi S, Sugiyama Y, Hirouchi H, Ishizuka S, Kitamura K, Mizoguchi T, Takayama T, Hayashi K, Shinichi Abe S
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24(14) Issue: 14 Pages: 11305-11305

    • DOI

      10.3390/ijms241411305

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of myostatin on nuclear morphology at the myotendinous junction.2023

    • Author(s)
      Amemiya H, Yamamoto M, Higa K, Watanabe G, Taniguchi S, Kitamura K, Jeong J, Yanagisawa N, Fukuda K, Abe S.
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 7 Pages: 6634-6634

    • DOI

      10.3390/ijms24076634

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A newly discovered tendon between the genioglossus muscle and epiglottic cartilage identified by histological observation of the pre-epiglottic space.2023

    • Author(s)
      Kitamura K, Watanabe T, Yamamoto M, Ishikawa N, Kasahara N, Abe S, Yamamoto H
    • Journal Title

      Dysphagia

      Volume: 38 Issue: 1 Pages: 315-329

    • DOI

      10.1007/s00455-022-10469-7

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development and regeneration of muscle, tendon, and myotendinous junctions in striated skeletal muscle2022

    • Author(s)
      Yamamoto M, Sakiyama K, Kitamura K, Yamamoto Y, Takagi T, Sekiya S, Watanabe G, Taniguchi S, Ogawa Y, Ishizuka S, Sugiyama Y, Takayama T, Hayashi K, Chang WJ, Abe S
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 23 Issue: 6 Pages: 6-6

    • DOI

      10.3390/ijms23063006

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Factors involved in morphogenesis in the muscle-tendon-bone complex2021

    • Author(s)
      Abe S, Yamamoto M
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 12 Pages: 12-12

    • DOI

      10.3390/ijms22126365

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Switching of Sox9 Expression During Musculoskeletal System Development2020

    • Author(s)
      Ryotaro Nagakura, Masahito Yamamoto, Juhee Jeong , Nobuyuki Hinata , Yukio Katori , Wei-Jen Chang , Shinichi Abe
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 8425-8425

    • DOI

      10.1038/s41598-020-65339-9

    • Related Report
      2020 Research-status Report
  • [Presentation] 腱損傷修復時に発現するSox9の役割解明2023

    • Author(s)
      渡辺元次,山本将仁,山本悠太郎,関谷紗世,谷口修一朗,廣内英智,松永智,阿部伸一
    • Organizer
      第128回日本解剖学会 全国学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] Switching of Sox9 expression during musculoskeletal system development.2021

    • Author(s)
      Yamamoto Masahito, Tetsu Naito, Takahiro Takagi, Chiemi Kanehira, Satoru Mastunaga, Kei Kitamura, Hitoshi Yamamoto, Shinichi Abe
    • Organizer
      第126回 日本解剖学会総会・全国学術集会
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi