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

Elucidation of the Mechanism of Retinal Neuropathology by Glycer-AGE and Drug Discovery for Diabetic Retinopathy

Research Project

Project/Area Number 20H03837
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionHokkaido University

Principal Investigator

Ishida Susumu  北海道大学, 医学研究院, 教授 (10245558)

Co-Investigator(Kenkyū-buntansha) 村田 美幸  北海道大学, 医学研究院, 助教 (50423752)
神田 敦宏  北海道大学, 医学研究院, 客員研究員 (80342707)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Keywords糖尿病網膜症 / Glycer-AGE / 網膜神経病態 / Glycol-AGE
Outline of Research at the Start

糖尿病網膜症は重篤な視機能障害をきたす疾患である。これまでの糖尿病網膜症治療は血管病態を制御することを目的とされてきたが、近年、糖尿病網膜症において「神経病態」が注目されている。糖尿病網膜症では早期から網膜電図の異常などの網膜神経病態が生じる。しかし、糖尿病網膜症における神経保護的治療法は確立されていない。
グルコースおよびフルクトース代謝の中間体であるグリセルアルデヒド由来の終末糖化産物(Glycer-AGE)は、その細胞障害性の強さから糖尿病網膜症を含む様々な疾患への関与が報告されている。本研究では、Glycer-AGEの網膜神経病態への関与について検討をおこない、新規治療法開発を目指す。

Outline of Final Research Achievements

Advanced glycation end products derived from glyceraldehyde called Toxic AGE (TAGE) due to its strong cytotoxicity, has been reported to be involved in the pathogenesis of various diseases including diabetic retinopathy. The aim of this study was to elucidate the mechanism of retinal neuropathology caused by TAGE and to develop a novel treatment for DR using anti-TAGE antibodies. In cultured human retinal pigment epithelial cells (RPE), TAGE decreased the barrier function of RPE. We also identified candidate target proteins of TAGE in RPE cells. Plasma levels of TAGE tended to be higher in diabetic retinopathy patients than in controls, but the difference was not significant. Further detailed analysis by stage will be conducted in the future.

Academic Significance and Societal Importance of the Research Achievements

糖尿病網膜症(diabetic retinopathy、DR)は重篤な視機能障害をきたす疾患であり、その病態理解は眼科学における最重要課題の一つである。これまでのDR治療はその血管病態を制御することを目的とされてきたが、近年、DRにおける「神経病態」が注目されている。しかし、DRにおける神経保護的治療法は現在のところ確立されておらず、眼科領域におけるアンメットニーズである。本研究によりTAGEが視細胞の恒常性維持に重要なRPEの機能を変化させることなどが明らかとなり、TAGEよる網膜神経病態形成機序の一端が示された。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (18 results)

All 2023 2022 2021

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (14 results) (of which Int'l Joint Research: 8 results,  Invited: 1 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] Peripapillary circulatory dysfunction precedes structural loss in treatment-naive diabetic retinopathy2023

    • Author(s)
      Mizuho Mitamura, Hiroaki Endo, Satoru Kase, Zhenyu Dong, Mitsuo Takahashi, Satoshi Katsuta, Manabu Kase, Susumu Ishida
    • Journal Title

      Graefes Arch Clin Exp Ophthalmol

      Volume: 261 Issue: 1 Pages: 85-95

    • DOI

      10.1007/s00417-022-05773-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [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 Annual Research 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 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] The role of phosphorylated aB-crystallin in Muller cells under diabetic inflammatory conditions2023

    • Author(s)
      Yamamoto T, Kase S, Kikuchi K, Ishida S.
    • Organizer
      FUJIRETINA
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Peripapillary Circulatory Dysfunction Precedes Structural Loss in Treatment- Naive Diabetic Retinopathy2023

    • Author(s)
      Ishida S
    • Organizer
      The Macula Society 46rd Annual Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Peripapillary circulatory dysfunction precedes structural loss in treatment-naive diabetic retinopathy.2023

    • Author(s)
      Ishida S.
    • Organizer
      International Ocular Inflammation Society (IOIS)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Angiopoietin-2 Signalling and Vascular Stability With Faricimab in Diabetic Macular Edema (DME)2022

    • Author(s)
      Ishida S, Willis JR, Haskova Z, Westenskow P.
    • Organizer
      FUJIRETINA
    • Related Report
      2022 Annual Research 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 Annual Research Report
    • Int'l Joint Research
  • [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 Annual Research Report
  • [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 Annual Research Report
  • [Presentation] Muller Glial-Mesenchymal Transition (GMT)2022

    • Author(s)
      石田 晋
    • Organizer
      第15回 Retina Research Meeting
    • Related Report
      2022 Annual Research Report
  • [Presentation] Role of acrolein and ROCK1 in retinal glial cells2021

    • Author(s)
      Fukutsu K
    • Organizer
      All English Web Live Seminar
    • Related Report
      2021 Annual Research 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 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Circulatory Hemodynamics in a Patient with Choroidal Macrovessel2021

    • Author(s)
      Ishida S
    • Organizer
      8th Annual Meeting of Asia-Pacific Retina Imaging Society
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Int'l Joint Research
  • [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
      第27回日本糖尿病眼学会
    • Related Report
      2021 Annual Research 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
      2020 Annual Research Report
    • Int'l Joint Research
  • [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
      第27回日本糖尿病眼学会総会
    • Related Report
      2020 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi