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Inflammation-inducing mechanism of acrolein in the pathogenesis of diabetic retinopathy

Research Project

Project/Area Number 21K09667
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionHokkaido University

Principal Investigator

Murata Miyuki  北海道大学, 医学研究院, 助教 (50423752)

Co-Investigator(Kenkyū-buntansha) 野田 航介  北海道大学, 医学研究院, 客員教授 (90296666)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords糖尿病網膜症 / アクロレイン / MCP-1 / HMGB1 / 網膜グリア細胞 / 炎症
Outline of Research at the Start

糖尿病網膜症は主要な失明原因の一つであり、その病態の解明は眼科学における重要な課題である。糖尿病網膜症おいて網膜グリア細胞は炎症関連分子を分泌し病態形成に関与する。我々は過去に、糖尿病網膜症患者の眼組織において網膜グリア細胞に不飽和アルデヒドの一種であるアクロレインが結合した蛋白が蓄積していることを報告した。アクロレインは反応性が高く、様々な蛋白と結合することでその機能異常を惹起する。我々は最近、アクロレインが培養網膜グリア細胞において、炎症を促進させる分子である単球走化性因子の発現を誘導することを見出した。本研究では、糖尿病網膜症におけるアクロレインの炎症誘導機構について検討をおこなう。

Outline of Final Research Achievements

Since diabetic retinopathy causes severe visual dysfunction, elucidation of its pathogenesis is an important issue in ophthalmology. We previously reported that acrolein, an unsaturated aldehyde-bound protein, accumulates in retinal glial cells in the fibrovascular tissue of patients with proliferative diabetic retinopathy. Acrolein is a highly reactive molecule that has been reported to be involved in a variety of disease states, including neurodegenerative diseases and malignant tumors. In this study, we investigated the mechanism by which acrolein induces inflammation in diabetic retinopathy, and found that acrolein induces MCP-1 expression via factor A in retinal glial cells and promotes macrophage migration. This study provides a new mechanism for the pathogenesis of diabetic retinopathy.

Academic Significance and Societal Importance of the Research Achievements

糖尿病患者は全世界で急速に増加しており、その罹病期間と糖尿病網膜症の発症率は正の相関を有するため、高齢化の一途をたどる現代において糖尿病網膜症患者数が今後飛躍的に増加すると考えられる。その病態の解明は眼科学における重要な課題である。本研究により、糖尿病網膜症眼内で増加するアクロレインが分子Aを介してMCP-1を誘導し、マクロファージの遊走を促すことが明らかになった。本研究結果は糖尿病網膜症の新たな病態形成機序を示すものであり、アクロレインが新規治療標的なる可能性を示す重要な成果である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (9 results)

All 2023 2022 2021

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Phosphorylation of αB-Crystallin Involves Interleukin-1β-Mediated Intracellular Retention in Retinal Muller Cells: A New Mechanism Underlying Fibrovascular Membrane Formation2023

    • Author(s)
      Yamamoto Taku、Kase Satoru、Shinkai Akihiro、Murata Miyuki、Kikuchi Kasumi、Wu Di、Kageyama Yasushi、Shinohara Masami、Sasase Tomohiko、Ishida Susumu
    • Journal Title

      Investigative Opthalmology & Visual Science

      Volume: 64 Issue: 10 Pages: 20-20

    • DOI

      10.1167/iovs.64.10.20

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Placental growth factor stabilizes VEGF receptor-2 protein in retinal pigment epithelial cells by downregulating glycogen synthase kinase 3 activity2022

    • Author(s)
      Murata Miyuki、Noda Kousuke、Kase Satoru、Hase Keitaro、Wu Di、Ando Ryo、Ishida Susumu
    • Journal Title

      Journal of Biological Chemistry

      Volume: 298 Issue: 9 Pages: 102378-102378

    • DOI

      10.1016/j.jbc.2022.102378

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ROCK1 Mediates Retinal Glial Cell Migration Promoted by Acrolein2021

    • Author(s)
      Fukutsu Kanae、Murata Miyuki、Kikuchi Kasumi、Yoshida Shiho、Noda Kousuke、Ishida Susumu
    • Journal Title

      Frontiers in Medicine

      Volume: 8 Pages: 717602-717602

    • DOI

      10.3389/fmed.2021.717602

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ROCK1 Mediates Retinal Glial Cell Migration Promoted by Acrolein2022

    • Author(s)
      Fukutsu K
    • Organizer
      2nd Asia Retina Congress
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Retinal capillary changes and cytokine expression in Spontaneously Diabetic Torii fatty rats2022

    • Author(s)
      Kikuchi K, Murata M, Kageyama Y, Shinohara M, Sasase T, Noda K, Ishida S
    • Organizer
      Association for Research in Vision and Ophthalmology (ARVO) Annual Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Muller細胞におけるアクロレインによる単球走化性因子の発現誘導2022

    • Author(s)
      福津佳苗、村田美幸、菊地香澄、吉田志帆、野田航介、石田 晋
    • Organizer
      第126回日本眼科学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 増殖糖尿病網膜症におけるマクロファージ遊走とアクロレイン2022

    • Author(s)
      福津佳苗、村田美幸、菊地香澄、野田航介、石田 晋
    • Organizer
      第25回眼科分子生物学研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] Spontaneously Diabetic Torii fatty ラットの網膜血管の解析2021

    • Author(s)
      菊地香澄、野田航介、村田美幸、影山 靖、篠原雅巳、笹瀬智彦、石田 晋.
    • Organizer
      日本糖尿病眼学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Acrolein promotes Muller cell migration via ROCK1 pathway2021

    • Author(s)
      Fukutsu K, Murata M, Kikuchi K, Yoshida S, Noda K, Ishida S
    • Organizer
      The 14th Joint Meeting of Japan-China-Korea Ophthalmologists
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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