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Research on bFGF-induced microRNA which inhibit the scarring, and basic research of development of targeted nucleic acid therapy

Research Project

Project/Area Number 17K11555
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plastic surgery
Research InstitutionToho University

Principal Investigator

Fujisawa Chie  東邦大学, 医学部, 講師 (10393000)

Co-Investigator(Kenkyū-buntansha) 大西 清  東邦大学, 医学部, 教授 (30194228)
深澤 由里  東邦大学, 医学部, 講師 (90392331)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsmicroRNA / bFGF / 瘢痕抑制 / bFGF / 皮膚創傷 / miRNA146b-5p / 線維化 / 組織修復 / PDGFRα / 組織修復反応 / 創傷治癒 / 核酸治療 / 形成外科学
Outline of Final Research Achievements

Basic fibroblast growth factor (bFGF) suppresses fibrosis of skin scars.In cultured fibroblasts and skin wounds, bFGF induced microRNA (miRNA) 146b-5p and decreased the expression of its target mRNA, Platelet-derived growth factor receptor α (PDGFRα). In addition, it was revealed that by administering bFGF to the wound site, miR146b-5p+/Sca-1+ cells containing mesenchymal stem cells increased and PDGFRα+/Sca-1+ cells decreased. We consider that miRNA146b-5p is effective in the prevention of scar formation by regulating the expression of PDGFRα that promotes the proliferation of mesenchymal cells.

Academic Significance and Societal Importance of the Research Achievements

皮膚創傷における線維芽細胞の過剰な増生は過度の瘢痕を形成し、拘縮による機能障害から患者のQOL低下を招く。その対症療法はあるが、過度な瘢痕形成を標的分子の発現制御から予防する方法は確立されていない。
本研究において、皮膚創傷時におけるbFGFは創傷部の線維化を抑制するとともにmiRNA146b-5pを誘導することを示した。誘導されたmiRNA146b-5pはPDGFR αの発現を低下させ、PDGFRα陽性の間葉系幹細胞を含む幼弱な細胞から線維芽細胞への分化を制御する可能性を示唆した。この成果はin vivoにおける瘢痕形成抑制および生体の過剰な線維化を伴う疾患に対する予防方法の確立に有用である。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (17 results)

All 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (16 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] ATP7A mutations in 66 Japanese patients with Menkes disease and carrier detection.2019

    • Author(s)
      Fujisawa C, Kodama H, Hiroki T, Akasaka Y, Hamanoue M
    • Journal Title

      Pediatrics International

      Volume: 印刷中 Issue: 4 Pages: 345-350

    • DOI

      10.1111/ped.13817

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] bFGF誘導性の瘢痕線維化を制御するmicroRNAの探索と機能解析2019

    • Author(s)
      藤澤千恵
    • Organizer
      第49回日本創傷治癒学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 創傷治癒におけるbFGFの機能と役割2019

    • Author(s)
      赤坂喜清
    • Organizer
      第49回日本創傷治癒学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] In vitro evidence of angiogenic properties of fibrocytes by bFGF2019

    • Author(s)
      Yoshikiyo Akasaka
    • Organizer
      Wound Healing Society, 31th Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] コラーゲンゲル三次元培養による骨髄間葉系前駆細胞(Fibrocyte)の誘導 と管腔様構造の形成2018

    • Author(s)
      藤澤 千恵、青木 茂久、岡根谷 哲哉、中道 美保、深澤 由里、 本間 尚子、大西 清、三上 哲夫、赤坂 喜清
    • Organizer
      第 107 回日本病理学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] 組織修復における骨髄間葉系前駆細胞(Fibrocyte)による血管新生メカニズム2018

    • Author(s)
      岡根谷哲哉、中道美保、藤澤千恵、青木茂久、三上哲夫、大西清、赤坂喜清
    • Organizer
      第37回分子病理学研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] コラーゲンゲル3次元培養による肉芽組織からの骨髄間葉系前駆細胞(Fibrocyte)の誘導2018

    • Author(s)
      岡根谷哲哉†、中道美保†、藤澤千恵†、青木茂久、荻野晶弘、岡田恵美、三上哲夫、大西 清、赤坂喜清
    • Organizer
      第27回日本形成外科学会基礎学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] Possible role of bFGF-induced miR146b-5p expression in wounds for tissue repair.2018

    • Author(s)
      Yoshikiyo Akasaka, Chie Fujisawa, Tetsuya Okaneya, Miho Nakamichi, Yuri Akishima-Fukasawa, Naoko Honma, Sachie Kanada, Tetsuo Mikami
    • Organizer
      The 107th Annual Meeting of The Japanese Society of Pathology
    • Related Report
      2018 Research-status Report
  • [Presentation] Phenotypic Change In Angiogenic Fibrocytes In Planter Decubitus Ulcers In Rats.2018

    • Author(s)
      Yoshikiyo Akasaka, Tetsuya Okaneya, Chie Fujisawa, Miho Nakamichi, Kiyoshi Onishi, Yuri Akishima-Fukasawa, Naoko Honma, Tetuo Mikami
    • Organizer
      2018 WHS Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 慢性炎症の瘢痕線維化を制御するmicroRNA探索と機能解析2018

    • Author(s)
      赤坂喜清、藤澤千恵
    • Organizer
      私立大学戦略的研究基盤形成支援事業 「自己免疫疾患の制御をめざす研究拠点形成」平成29年度事業報告会
    • Related Report
      2017 Research-status Report
  • [Presentation] 創傷治癒における肉芽組織細胞による管腔様構造の形成とbFGFの関与2017

    • Author(s)
      岡根谷哲哉 中道美保 藤澤千恵 木村裕美 青木茂久 武田慶 荻野晶弘 岡田恵美 三上哲夫 大西清 赤坂喜清
    • Organizer
      第47回日本創傷治癒学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 創傷治癒の瘢痕線維化を制御するmicroRNAの探索 と機能解析2017

    • Author(s)
      赤坂喜清 藤澤千恵 中道美保 岡根谷哲哉 深澤由里 大西清 三上哲夫
    • Organizer
      第47回日本創傷治癒学会
    • Related Report
      2017 Research-status Report
  • [Presentation] ラット隆起性皮膚病変 における骨髄間葉系前駆細胞(Fibrocyte)の発現変化と血管新生2017

    • Author(s)
      中道美保 岡根谷哲哉 藤澤千恵 深澤由里 三上哲夫 河越尚幸 今井常彦 瓜田純久 大西清 赤坂喜清
    • Organizer
      第47回日本創傷治癒学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 創傷治癒における修復細胞による血管新生とbFGFの関与2017

    • Author(s)
      岡根谷哲哉、中道美保 、藤澤千恵 、青木茂久、武田 慶 、荻野晶弘、岡田恵美、三上哲夫、大西 清、赤坂喜清
    • Organizer
      第26回日本形成外科学会基礎学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] bFGF Enhances Vascular Formation through Induction of Angiogenic Properties of Fibrocytes2017

    • Author(s)
      Yoshikiyo Akasaka, Miho Nakamichi, Chie Fujisawa, Yuri Fukasawa, Naoko Honma, Kiyoshi Onishi, Tetuo Mikami
    • Organizer
      The 106th Annual Meeting of the Japanese Society of Pathology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Novel genetic mutations in Menkes disease associated with clinical course in Japan2017

    • Author(s)
      Chie Fujisawa, Hiroko Kodama, Yuri Akishima-Fukasawa, Naoko Honma, Tetuo Mikami, Yoshikiyo Akasaka
    • Organizer
      The 106th Annual Meeting of the Japanese Society of Pathology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Induction of angiogenic properties of brocytes by bFGF leading to vascular formation during wound healing2017

    • Author(s)
      Yoshikiyo Akasaka, Miho Nakamichi, Chie Fujisawa, Kiyoshi Onishi, Tetsuya Okaneya, Yuri Akishima-Fukasawa, Naoko Honma, Tetsuo Mikami
    • Organizer
      Wound Healing Society 29th Annual Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2025-11-20  

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