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

Development of an efficient method for induction of tendon cell by regulation of mechanical stress response

Research Project

Project/Area Number 22K20940
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0905:Surgery of the organs maintaining homeostasis and related fields
Research InstitutionOkayama University

Principal Investigator

Nakamichi Ryo  岡山大学, 大学病院, 研究准教授 (20803167)

Project Period (FY) 2022-08-31 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords幹細胞 / 機械刺激応答 / 腱分化
Outline of Research at the Start

幹細胞を腱細胞へと分化させる方法として種々の成長因子やメカニカルストレスが有効であることが報告されているが、腱分化システムはまだ発展途上である。そこで本研究では機械刺激応答性カルシウムチャネルPIEZO1の腱分化におけるこの役割を明らかにし、さらにその知見を基にPIEZO1の活性を調整してより良好な移植細胞を生成することを目標とする。

Outline of Final Research Achievements

We analyzed the effect of mechanical stimulation on tendon differentiation of stem cells, focusing on PIEZO1, a mechanoresponsive calcium ion channel receptor. With a cell stretching culture system for C3H10T1/2 cells, which are mesenchymal stem cells derived from mouse limb buds, we found that osteogenic differentiation was enhanced under high-load conditions and tenogenic differentiation was enhanced under low-load conditions. Examination of the effect of PIEZO1 agonist stimulation with adjustable firmness gels for cells revealed that ostegenic differentiation markers were upregulated under high firmness conditions and tenogenic differentiation markers were upregulated under low firmness conditions.
Second, studies using stem/progenitor cells derived from tendon tissue revealed that the stimulation by PIEZO1 agonists increased the tendency for tenogenic differentiation independent of firmness.

Academic Significance and Societal Importance of the Research Achievements

上記の研究成果から、細胞周囲環境と機械刺激応答シグナルの調整により間葉系幹細胞の分化方向を制御できる可能性が見出された。Tissue engineeringの分野では1つの臓器を作成するために複数の器官を同時に生成することの困難さが問題点の1つとなっているが、本研究により筋骨格系分野において、幹細胞と周囲環境、機械刺激応答シグナル調整を制御することで、複合組織を生成することができる可能性が示唆された。この研究結果は将来的な整形外科領域における再生医療促進のための基盤研究として社会的意義の高いものと考えられる。

Report

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

    (1 results)

All 2024

All Presentation (1 results) (of which Invited: 1 results)

  • [Presentation] Comprehension of Tendon Homeostasis Mechanism and Application for Therapy2024

    • Author(s)
      中道亮
    • Organizer
      日本軟骨代謝学会
    • Related Report
      2023 Annual Research Report
    • Invited

URL: 

Published: 2022-09-01   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi