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

2022 Fiscal Year Final Research Report

High molecular hyaluronic acid regulates the differentiation of injured tendon-derived progenitor cells

Research Project

  • PDF
Project/Area Number 18K16618
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionNagoya University

Principal Investigator

Asai Shuji  名古屋大学, 医学部附属病院, 講師 (00770893)

Project Period (FY) 2018-04-01 – 2023-03-31
Keywords腱 / 変性 / ヒアルロン酸 / 間葉系幹細胞
Outline of Final Research Achievements

In this study, using a mouse Achilles tendon injury model and progenitor-like cells isolated from the injured tendon, we found the followings: (1) high molecular weight hyaluronic acid inhibits chondrogenic differentiation of injured tendon-derived progenitor-like cells and promotes tenogenic differentiation, (2) 4-Methylumbelliferone (4-MU), an inhibitor of hyaluronan synthesis, promotes chondrogenic differentiation of injured tendon-derived progenitor-like cells, 3) high molecular weight hyaluronic acid inhibits heterotopic mineralization in a mouse Achilles tendon injury model, and 4) 4-MU promotes heterotopic mineralization. These results suggest that high molecular weight hyaluronic acid may inhibit degeneration and promote repair of injured tendons. Further studies are needed to elucidate the molecular mechanism.

Free Research Field

整形外科

Academic Significance and Societal Importance of the Research Achievements

腱損傷部の修復を促進するために,骨髄や脂肪由来の間葉系幹細胞に成長因子を投与することにより腱分化を誘導し,それらの細胞をscaffoldとともに損傷部位に移植する研究が行われている.しかし,いずれの研究も動物実験段階であり,完全な腱組織の獲得には至っていない.また,臨床応用するためには,ドナー細胞を採取する侵襲が患者に加わることが問題のひとつである.本研究で用いた方法により,腱損傷部に自然誘導される幹細胞の腱分化を促進できる可能性があり,ドナー細胞を採取する侵襲を避けることができる.また,ヒアルロン酸は既承認薬であり安全性が担保されており,本研究で得られた成果は臨床に応用しやすいと考える.

URL: 

Published: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi