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Mechanism of promoting wound healing by the coordinated action of growth factors and neurotrophic factors

Research Project

Project/Area Number 19K07319
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48030:Pharmacology-related
Research InstitutionYamaguchi University

Principal Investigator

Sakai Hiroki  山口大学, 大学院医学系研究科, 助教 (40464367)

Co-Investigator(Kenkyū-buntansha) 乾 誠  山口大学, その他部局等, 名誉教授 (70223237)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords創傷治癒 / 表皮細胞 / 成長因子 / 神経栄養因子 / アンギオテンシンII / アンギオテンシン変換酵素 / ペプチド / 創傷治癒促進薬 / 質量分析
Outline of Research at the Start

本研究では、神経栄養因子サブスタンスP(或いはFGLM-NH2)と成長因子IGF-1(或いはSSSR)がどの様な分子メカニズムで表皮細胞の遊走促進や創傷治癒促進をもたらすかを解明する。そのために、表皮細胞を用いてSSSRとNK1受容体によるACE活性化メカニズムの検討や、SSSR標的分子の同定並びに関与するシグナル伝達系の解析を行う。さらに、マウスを用いて創傷治癒過程におけるSSSR標的分子の関与を解析し、細胞レベルで明らかにしたメカニズムが動物個体レベルの創傷治癒過程でも働いているかを検証する。

Outline of Final Research Achievements

Pain as an alert of wound is sensed by sensory nerves which might in turn play a role in the process of wound healing, although the mechanisms are largely unknown. Trophic effects of sensory nerves and growth factors play important roles in epithelial wound healing. Here we show that insulin-like growth factor (IGF-1) or a tetrapeptide (SSSR) derived from its C domain promotes keratinocyte migration independently of the IGF-1 receptor. Instead, this effect is mediated by angiotensin II generated by ACE in a manner dependent on activation of the NK1 receptor by the sensory neurotransmitter substance P or by its COOH-terminal tetrapeptide FGLM-NH2. Upon activation of NK1 receptor, SSSR induced shedding of ACE from keratinocytes, enhancing the ACE activity. Our results provide new insights into the interaction of sensory nerves and growth factors in wound healing as well as a foundation for a potential new peptide-based treatment of skin wounds.

Academic Significance and Societal Importance of the Research Achievements

本研究で明らかにした成長因子IGF-1と神経栄養因子サブスタンスPの協調作用による創傷治癒の促進メカニズムは、これまでに知られていない新たな病態生理学的機序の解明である。IGF-1がNK1受容体活性化の下でACE活性化を介して作用を発揮するというIGF受容体非依存性のメカニズムは、生物学的にも重要な意味を持つ可能性がある。また、SSSR標的分子を同定するツールとして合成に成功したNBD-SSSRは、SSSRの創傷治癒促進メカニズムの全容解明を可能にするだけでなく、そのメカニズムを基盤とした新たな創傷治癒促進薬の開発にも繋がる可能性がある。

Report

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

    (7 results)

All 2022 2021

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (5 results)

  • [Journal Article] Assessment of binding potencies of polychlorinated biphenyls and polybrominated diphenyl ethers with Baikal seal and mouse constitutive androstane receptors: Comparisons across species and congeners.2022

    • Author(s)
      Dau PT, Ishibashi H, Tuyen LH, Sakai H, Hirano M, Kim EY, Iwata H.
    • Journal Title

      Sci Total Environ

      Volume: 806 Pages: 150631-150631

    • DOI

      10.1016/j.scitotenv.2021.150631

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Calcium/calmodulin-dependent regulation of Rac GTPases and Akt in histamine-induced chemotaxis of mast cells2021

    • Author(s)
      Honda Takeshi、Nishio Yusuke、Sakai Hiroki、Asagiri Masataka、Yoshimura Kiyoshi、Inui Makoto、Kuramasu Atsuo
    • Journal Title

      Cellular Signalling

      Volume: 83 Pages: 109973-109973

    • DOI

      10.1016/j.cellsig.2021.109973

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] キョウチクトウ科植物由来抽出物による炎症促進性型M1マクロファージ活性化と破骨細胞分化の抑制2022

    • Author(s)
      石田 千賀、鈴木 美恋、瀬戸 哲也、大塚 まりな、酒井 大樹、竹入 雅敏、常陰 幸乃、新井 啓子、本田 健、木村 吉秀、朝霧 成挙
    • Organizer
      第95回日本薬理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 合成レチノイド抗腫瘍薬ベキサロテンは炎症性破骨細胞の分化を阻害する2022

    • Author(s)
      竹上 陽菜、仲村 日和、竹田 彩乃、松尾 真結、酒井 大樹、本田 健、朝霧 成挙
    • Organizer
      第95回日本薬理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 炎症性破骨細胞形成に対するスペルミジンの抑制効果2022

    • Author(s)
      田中 誠也、岡本 明日香、椿 帆乃香、瀬戸 哲也、酒井 大樹、本田 健、朝霧 成挙
    • Organizer
      第95回日本薬理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Enhancement of myogenic differentiation by MMP inhibition and attenuation of the enhancement effect in senescent cells2021

    • Author(s)
      Hiroki Sakai, Takeshi Honda, Kouetsu Ogasawara, Masataka Asagiri
    • Organizer
      第94回日本薬理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] A novel intracellular drug-delivery system specific for cardiomyocytes using RNA aptamer2021

    • Author(s)
      Takeshi Honda, Hiroki Sakai, Inui Makoto
    • Organizer
      第94回日本薬理学会年会
    • Related Report
      2020 Research-status Report

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

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