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Elucidation of the mechanism of wound healing by extracellular vesicles as intercellular communication tools

Research Project

Project/Area Number 19K10038
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56070:Plastic and reconstructive surgery-related
Research InstitutionTokyo University of Science

Principal Investigator

Shimonaka Motoyuki  東京理科大学, 理学部第一部化学科, 教授 (30277272)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords創傷治癒 / エクソソーム / 灌流培養 / 血管内皮細胞 / 線維芽細胞 / 内皮細胞
Outline of Research at the Start

創傷治癒過程の制御は,細胞外マトリックスや血液中の有形成分および可溶性成分,そして線維芽細胞と血管構成細胞との間の多次元的な相互作用に加え,細胞間コミュニケーションツールとして最近注目を集めているエクソソームのタンパク質やmiRNAによるタンパク質発現制御などが極めて重要な役割を担っていると考えられる。本研究では,創傷治癒過程の制御におけるエクソソームの重要性を,線維芽細胞の3D培養系に血管内皮細胞の灌流培養系を組み合わせたex vivoの創傷治癒モデル系を用いて解明していく。

Outline of Final Research Achievements

In order to investigate the wound healing mechanism under conditions close to those in physiological states, we established the perfusion cell culture model system using vascular endothelial cells and fibroblast cells. When the effects of exosomes on vascular injury repair were investigated using this system, it was found that exosomes secreted from both cells promoted injury repair. Furthermore, as exosomes secreted from damaged vascular endothelial cells delayed injury repair compared to exosomes secreted from normal endothelial cells, it was clarified that exosomes controlled the injury repair process depending on the conditions of secreting cells. It was also demonstrated that plasminogen promoted the proliferation and migration of vascular endothelial cells, and exosomes coordinately promoted injury repair by controlling the direction of the cell migration.

Academic Significance and Societal Importance of the Research Achievements

血管内皮細胞と線維芽細胞による灌流培養系を確立し,エクソソームによる創傷治癒過程の制御機構を解析した。この結果は,正常細胞が分泌するエクソソームの新たな役割を提示するとともに,血漿成分とエクソソームとの協調作用が損傷修復に重要な役割を担っていることを示すものである。これら因子についての詳細をさらに検討し臨床レベルの研究に応用することにより,外科的治療を受けている全ての患者に大いなる利益をもたらす「瘢痕なき治癒」へ向けた第一歩になることが期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (3 results)

All 2021 2020 2019

All Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] Investigation of the Association of Exosomes with Plasminogen and their Regulatory Effects on Wound Healing2021

    • Author(s)
      Sakiko Yagawa, Misa Tatsuzawa, Ayane Nakadai, Rika Horibo, Motoyuki Shimonaka
    • Organizer
      TOIN International Symposium on Biomedical Engineering 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Elucidation of The Mechanism of Wound Healing by Extracellular Vesicles as Intercellular Communication Tools2020

    • Author(s)
      Misa Tatsuzawa, Sakiko Yagawa, Motoyuki Shimonaka
    • Organizer
      TOIN 15th International Symposium on Biomedical Engineering
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Elucidation of the mechanism of wound healing by extracellular vesicles as intercellular communication tools2019

    • Author(s)
      立澤美沙,矢川咲子,下仲基之
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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