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

Identification and analysis of molecules involved in the susceptibility of melanocytes to oxidative stress in vitiligo pathogenesis

Research Project

Project/Area Number 20K08657
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Inoue Shintarou  岐阜薬科大学, 薬学部, 特任教授 (00793853)

Co-Investigator(Kenkyū-buntansha) 水谷 有紀子  岐阜薬科大学, 薬学部, 特任准教授 (30396296)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords白斑 / ケラチノサイト / GPNMB / 酸化ストレス / 分化 / 細胞接着 / 発がん / ロドデンドロール / NRF2 / 細胞障害性 / 表皮細胞 / 尋常性白斑
Outline of Research at the Start

本研究では酸化ストレス抵抗性へのGPNMBの関与やNRF2抗酸化システムとの関係性を色素細胞やメラノーマ細胞で明らかにし、1)白斑発症と病態維持に際して酸化ストレス抵抗性破綻に関わる分子を特定し白斑発症予防や治療に役立てる、2)酸化ストレス抵抗性分子の遺伝子改変制御により白斑発症リスク化合物を安定評価できる細胞株の作出と高汎用性細胞評価系の確立、を目的とする。

Outline of Final Research Achievements

Environmental factors such as infections and oxidative stress (OS) are involved in the pathogenesis and maintenance of vitiligo (VL). We have reported that the membrane protein GPNMB (Glycoprotein nonmetastatic melanoma protein B) expression is lost in the basal layer keratinocytes (KC) of VL lesions and are downregulated by IFN-γ. In this study, we investigated the physiological role of GPNMB in KC and its involvement in VL pathogenesis and maintenance of the disease state. As a result, this study showed that GPNMB contributes as an OS resistance in KC and is involved in differentiation, stratum corneum maturation, cell adhesion, and regulation of carcinogenesis-related gene expression, suggesting that GPNMB contribute to melanocyte floating and carcinogenesis risk.

Academic Significance and Societal Importance of the Research Achievements

皮膚の色素細胞が消失し白斑形成が起きる後天性の自己免疫疾患、尋常性白斑の発症と病態維持には、酸化ストレスなどの環境要因も重要である。病変部の表皮細胞ではインターフェロンγの関与により膜タンパク質GPNMBの発現が消失する。本研究では、GPNMBの生理的役割と白斑発症や病態維持への関与を検討し、GPNMBが表皮細胞の酸化ストレス抵抗性、分化・角層成熟、細胞接着、発癌関連遺伝子の発現制御等に関わることを示した。これらの結果から、GPNMBが白斑での色素細胞の浮遊化や発癌リスクの低減に関与することが示唆される。

Report

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

    (15 results)

All 2022 2021 2020 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 2 results,  Invited: 5 results) Remarks (1 results)

  • [Journal Article] 白斑の病因論 - 最近の知見から - in『白斑:病態の理解と最新治療』2022

    • Author(s)
      井上紳太郎
    • Journal Title

      美容皮膚医学BEAUTY

      Volume: 42 (No.5) Pages: 14-25

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Rhododendrol-induced leukoderma update II: Pathophysiology, mechanisms, risk evaluation, and possible mechanism-based treatments in comparison with vitiligo2021

    • Author(s)
      Inoue S, Katayama I, Suzuki T, Tanemura A, Ito S, Abe Y, Sumikawa Y, Yoshikawa M, Suzuki K, Yagami A, Masui Y, Ito A, Matsunaga K.
    • Journal Title

      J Dermatol.

      Volume: 48 Issue: 7 Pages: 969-978

    • DOI

      10.1111/1346-8138.15878

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Rhododendrol‐induced leukoderma update I: Clinical findings and treatment2021

    • Author(s)
      Matsunaga K, Suzuki K, Ito A, Tanemura A, Abe Y, Suzuki T, Yoshikawa M, Sumikawa Y, Yagami A, Masui Y, Inoue S, Ito S, Katayama I.
    • Journal Title

      J Dermatol.

      Volume: 00 Issue: 7 Pages: 1-8

    • DOI

      10.1111/1346-8138.15835

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 表皮細胞におけるGPNMBの役割 (3)2022

    • Author(s)
      井上紳太郎
    • Organizer
      日本白斑学会ロドデノール誘発性 脱色素斑研究班第4回班会議
    • Related Report
      2022 Annual Research Report
  • [Presentation] 白斑治療におけるJAK阻害剤適用の可能性.2022

    • Author(s)
      井上紳太郎
    • Organizer
      第4回日本白斑学会学術大会共催 シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 尋常性白斑の病態生理と発症メカニズムUpdate2022

    • Author(s)
      井上紳太郎
    • Organizer
      第121回日本皮膚科学会総会教育講演8
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 表皮細胞におけるGPNMBの役割 (2)2022

    • Author(s)
      井上紳太郎
    • Organizer
      日本白斑学会ロドデノール誘発性 脱色素斑研究班第3回班会議
    • Related Report
      2022 Annual Research Report
  • [Presentation] 教育講演39 表皮細胞におけるGPNMBの役割2021

    • Author(s)
      井上紳太郎
    • Organizer
      第120回日本皮膚科学会総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] GPNMBはNRF2非依存的にヒト表皮細胞の酸化ストレス抵抗性に寄与している2021

    • Author(s)
      西田那月, 大津麻里子, 水谷有紀子, 井上紳太郎
    • Organizer
      第3回日本白斑学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 表皮細胞におけるGPNMBの役割2021

    • Author(s)
      井上紳太郎
    • Organizer
      日本白斑学会ロドデノール誘発性脱色素斑研究班第2回班会議
    • Related Report
      2020 Research-status Report
  • [Presentation] 白斑リスク物質による細胞障害性におけるGPNMBの役割について.2021

    • Author(s)
      西田那月、井上紳太郎
    • Organizer
      日本白斑学会ロドデノール誘発性脱色素斑研究班第1回班会議
    • Related Report
      2020 Research-status Report
  • [Presentation] 化学白斑の最新情報2021

    • Author(s)
      井上紳太郎
    • Organizer
      第38回日本美容皮膚科学会総会教育講演
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Keratinocyte GPNMB is involved in the development of chemical vitiligo?2020

    • Author(s)
      Inoue S.
    • Organizer
      24th The International Pigment Cell Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Compensatory action of anti-oxidative GPNMB in NRF2-deficient human melanoma clones to evaluate vitiligo-risk compounds.2020

    • Author(s)
      Nishida N, Ishitsuka A, Nakayama H, Higashiyama S, Inoue S.
    • Organizer
      24th The International Pigment Cell Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Remarks] 岐阜薬科大学 香粧品健康学寄附講座 RESEARCH

    • URL

      https://koushouhinlabo.wixsite.com/gpu-koushouhin/blank

    • Related Report
      2022 Annual Research Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi