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A novel animal model of sarcopenia

Research Project

Project/Area Number 21K19693
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 59:Sports sciences, physical education, health sciences, and related fields
Research InstitutionTohoku University

Principal Investigator

ANDO KEIKO  東北大学, 歯学研究科, 准教授 (40221741)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsサルコペニア / 線虫 / リソソーム
Outline of Research at the Start

サルコペニアは加齢性の骨格筋萎縮症で、歩行障害、嚥下障害などの全身の機能低下を引き起こし、健康寿命延伸を阻む主要な要因である。超高齢化社会にある我が国では、毎年100万人を超える高齢者が新たにサルコペニアに罹患しており、その克服は医学的、社会的に喫緊の課題である。本研究では、寿命が3週間と短く老化研究の代表的なモデル生物である線虫C.elegansを用いて筋の老化を解析するための動物モデルを開発する。この新規動物モデルはサルコペニアに加えて様々な筋疾患の解析と治療法開発に応用展開が可能と考えられ、医療と健康増進への貢献が期待される。

Outline of Final Research Achievements

Sarcopenia is an age-related muscle loss that occurs as a result of aging. In our country, where the population is aging, the number of sarcopenia patients is rapidly increasing. Overcoming sarcopenia leads to an increase in healthy life expectancy, which is important for both medical science and society. However, the mechanism of age-related muscle atrophy is still poorly understood. In this study, to understand the mechanism of sarcopenia, we developed a new rapid and low-cost animal model using C. elegans, which has a short life span and is useful for muscle aging research. Furthermore, functional analysis using the animal model showed that the lysosomal Sec1/Munc18 protein may be involved in muscle aging.

Academic Significance and Societal Importance of the Research Achievements

サルコペニアによる筋力の低下は高齢者の寝たきりやオーラルフレイルによる低栄養などの要因となり、高齢者の健康寿命とQOLを著しく低下させる。本研究によって、高齢化に時間を有する従来の哺乳動物モデルを補完する新しい動物モデルが開発された。遺伝的に均一で個体差が少ない高齢動物を対象にして、加齢による筋肉の減弱と運動機能の低下を体系的に解析することが可能となった。この迅速・低コストの生体モデルを遺伝子スクリーニングや創薬研究に応用することで、筋萎縮の予防や治療に役立つ新しい医薬品の開発につながる可能性があり、健康長寿社会の実現に貢献することが期待される。

Report

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

    (4 results)

All 2024 2023 2022

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

  • [Journal Article] Domain 3a mutation of VPS33A suppresses larval arrest phenotype in the loss of VPS45 in Caenorhabditis elegans2024

    • Author(s)
      Keiko Gengyo-Ando, Masahiko Kumagai, Hideki Ando, Junichi Nakai
    • Journal Title

      MicroPublication Biology

      Volume: Mar 21

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Physical Stimulation Methods Developed for In Vitro Neuronal Differentiation Studies of PC12 Cells: A Comprehensive Review2024

    • Author(s)
      Tominami Kanako、Kudo Tada-aki、Noguchi Takuya、Hayashi Yohei、Luo You-Ran、Tanaka Takakuni、Matsushita Ayumu、Izumi Satoshi、Sato Hajime、Gengyo-Ando Keiko、Matsuzawa Atsushi、Hong Guang、Nakai Junichi
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 25 Issue: 2 Pages: 772-772

    • DOI

      10.3390/ijms25020772

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A humanized Caenorhabditis elegans model for studying pathogenic mutations in VPS45, a protein essential for membrane trafficking, associated with severe congenital neutropenia2023

    • Author(s)
      Keiko Gengyo-Ando, Minoru Tateyama, Shohei Mitani, Hideki Ando, Junichi Nakai
    • Journal Title

      MicroPublication Biology

      Volume: Nov 27

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Membrane trafficking2022

    • Author(s)
      Keiko Gengyo-Ando
    • Organizer
      21th Yonsei Dental International Symposium
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited

URL: 

Published: 2021-07-13   Modified: 2025-01-30  

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