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Treatment for skin sclerosis in systemic sclerosis by MSCs-derived exosome

Research Project

Project/Area Number 20K08685
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53050:Dermatology-related
Research InstitutionGunma University

Principal Investigator

YOKOYAMA Yoko  群馬大学, 医学部, 技術専門職員 (00241901)

Co-Investigator(Kenkyū-buntansha) 茂木 精一郎  群馬大学, 大学院医学系研究科, 教授 (20420185)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords全身性強皮症 / 皮膚線維化 / 間葉系幹細胞 / エクソソーム / MFG-E8 / 線維化 / 皮膚硬化 / 強皮症
Outline of Research at the Start

全身性強皮症は、皮膚および内臓臓器の線維化、血管異常、免疫異常(自己抗体)を特徴とする原因不明の自己免疫性疾患である。
我々は、間葉系幹細胞(MSC)から分泌されるエクソソームの膜に多く存在するMFG-E8が皮膚線維化の抑制機序の一部に関わると考え、MSC由来エクソソームおよびエクソソームに含まれるMFG-E8が強皮症の皮膚線維化に関与するのかどうかについて、MSC由来エクソソームおよびMFG-E8 WT/KOマウス由来MSCから産生されるエクソソームを強皮症マウスモデル(ブレオマイシン誘導皮膚線維化マウス、Tight skinマウス)に投与し、皮膚線維化への影響を明らかにする。

Outline of Final Research Achievements

We investigated the possibility that exosomes secreted from mesenchymal stem cells (MSCs) have an inhibitory effect on skin fibrosis in systemic scleroderma and that milk fat globule-EGF-factor 8 (MFG-E8), which exists on the membrane of MSCs, is involved in the mechanism of this effect.Experiments using mouse models of scleroderma and cultured fibroblasts showed that MSC-derived exosomes have an inhibitory effect on skin fibrosis. On the other hand, the present study did not clarify the involvement of MFG-E8 in the inhibition of fibrosis.This study suggests therapeutic application of MSC-derived exosomes for scleroderma skin sclerosis.

Academic Significance and Societal Importance of the Research Achievements

全身性強皮症は皮膚および内臓臓器の線維化、血管異常、免疫異常を特徴とする原因不明の自己免疫性疾患である。これまでに強皮症モデルマウス皮膚に対する間葉系幹細胞(MSC)の線維化抑制作用は多数報告されているが、幹細胞であるため生体内への注入などで治療に応用することは難しい。一方、エクソソームは細胞から分泌される膜小胞であり、今回、皮膚線維化への抑制作用が明らかになったことから、臨床への応用が期待できる。

Report

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

    (2 results)

All 2021

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Antifibrotic effects and mechanisms of mesenchymal stem cell-derived exosomes in a systemic sclerosis mouse model: Possible contribution of miR-196b-5p2021

    • Author(s)
      Baral Hritu、Uchiyama Akihiko、Yokoyama Yoko、Sekiguchi Akiko、Yamazaki Sahori、Amalia Syahla Nisaa、Inoue Yuta、Ogino Sachiko、Torii Ryoko、Hosoi Mari、Matsuzaki Toshiyuki、Motegi Sei-ichiro
    • Journal Title

      Journal of Dermatological Science

      Volume: 104 Issue: 1 Pages: 39-47

    • DOI

      10.1016/j.jdermsci.2021.08.006

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Antifibrotic effects and mechanisms of miR-196b-5p of mesenchymal stem cell-derived exosomes in a systemic sclerosis mouse model2021

    • Author(s)
      Hritu Baral, Akihiko Uchiyama, Yoko Yokoyama, Akiko Sekiguchi, Sahori Yamazaki, Syahla Nisaa Amalia, Yuta Inoue, Sachiko Ogino, Ryoko Torii, Mari Hosoi, Toshiyuki Matsuzaki, Sei-ichiro Motegi
    • Organizer
      The 46th Annual Meeting of the Japanese Society for Investigative Dermatology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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