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diabetic retinopathy

Research Project

Project/Area Number 21K09734
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Yoshida Shigeo  久留米大学, 医学部, 教授 (50363370)

Co-Investigator(Kenkyū-buntansha) 石川 桂二郎  九州大学, 医学研究院, 助教 (00795304)
中尾 新太郎  順天堂大学, 大学院医学研究科, 教授 (50583027)
春田 雅俊  久留米大学, 医学部, 教授 (90359802)
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: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords糖尿病網膜症 / 糖尿病黄斑浮腫 / 線維血管増殖 / 毛細血管瘤 / 抗VEGF薬 / 硝子体内注射 / TelCaps / circRNA / real time PCR
Outline of Research at the Start

増殖組織中のcircular RNA発現プロファイル解明と増殖抑制治療標的の同定を試みる。また、増殖糖尿病網膜症に対する術中蛍光眼底造影ガイド下選択的光凝固術の有効性を検証する。さらに、インドシアニングリーン/OCT血管造影を用いた毛細血管瘤の糖尿病黄斑浮腫病態への関与を解明し、人工知能を用いた抗VEGF薬治療の反応性予測システムを確立する。

Outline of Final Research Achievements

In this study, we aimed to elucidate the involvement of microaneurysms in the pathogenesis of DME using IA and to understand the role of circular RNA in ischemic retinopathy. The study demonstrated that anti-VEGF drugs effectively reduce the size of capillary microaneurysms in DME patients and suggested that large TelCaps detected by IA could serve as useful predictors of treatment-resistant DME. The cZNF5332 circRNA was detected in preretinal fibrovascular membranes, vitreous, and patient serum. Significant changes in circRNA levels were also confirmed in the ischemic retina. These findings suggest the potential involvement of circRNA in the pathophysiology of retinal fibrovascular proliferation.

Academic Significance and Societal Importance of the Research Achievements

我々は毛細血管瘤がDMEの重要病態であることに着目し、IAとOCTAを用いたMAの定量に取り組みを継続している。本研究により適切な抗VEGF薬の投与レジメや黄斑光凝固治療の組み合わせを個別化でき、患者に優しい低侵襲治療と医療費削減へとつながることが期待される。
circRNAは線状RNAに比べて血中、硝子体中で安定である。circRNAが網膜線維血管増殖に関与することが明らかになった。今後circRNAがバイオマーカー、分子標的となる可能性がある。circRNAを標的とした眼内増殖抑制治療薬を開発できれば、抗VEGF療法と併用しうる治療法となる可能性がある。

Report

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

    (8 results)

All 2023 2022 2021

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Clinical features of 26 cases of COVID-19-associated conjunctivitis2023

    • Author(s)
      Tajima Asahi、Sassa Yukio、Ishio Daiki、Yamashita Shota、Sadashima Eiji、Arai Rikki、Iwanaga Kentaro、Yoshida Shigeo、Sonoda Koh-Hei、Enaida Hiroshi
    • Journal Title

      Japanese Journal of Ophthalmology

      Volume: 68 Issue: 1 Pages: 57-63

    • DOI

      10.1007/s10384-023-01033-3

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Exosomal non-coding RNAs in angiogenesis: Functions, mechanisms and potential clinical applications2023

    • Author(s)
      Wang Zicong、Tan Wei、Li Bingyan、Zou Jingling、Li Yun、Xiao Yangyan、He Yan、Yoshida Shigeo、Zhou Yedi
    • Journal Title

      Heliyon

      Volume: 9 Issue: 8 Pages: e18626-e18626

    • DOI

      10.1016/j.heliyon.2023.e18626

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Decrease in Ocular Blood Flow Thirty Minutes After Intravitreal Injections of Brolucizumab and Aflibercept for Neovascular Age-Related Macular Degeneration2023

    • Author(s)
      Kato Nobuhiro、Haruta Masatoshi、Furushima Kei、Arai Rikki、Matsuo Yu、Yoshida Shigeo
    • Journal Title

      Clinical Ophthalmology

      Volume: Volume 17 Pages: 1187-1192

    • DOI

      10.2147/opth.s407249

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Identification and clinical significance of tsRNAs and miRNAs in PBMCs of treatment-requiring retinopathy of prematurity2023

    • Author(s)
      Zhou Yedi、Wang Zicong、Zhou Haixiang、Tan Wei、Liu Jie、Cai Yuting、Huang Qian、Li Bingyan、He Yan、Yoshida Shigeo、Li Yun
    • Journal Title

      Experimental Eye Research

      Volume: 232 Pages: 109518-109518

    • DOI

      10.1016/j.exer.2023.109518

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Reduced Size of Telangiectatic Capillaries After Intravitreal Injection of Anti-Vascular Endothelial Growth Factor Agents in Diabetic Macular Edema2023

    • Author(s)
      Itou Junichi、Furushima Kei、Haruta Masatoshi、Kato Nobuhiro、Arai Rikki、Mori Kenichiro、Ishikawa Keijiro、Yoshida Shigeo
    • Journal Title

      Clinical Ophthalmology

      Volume: Volume 17 Pages: 239-245

    • DOI

      10.2147/opth.s393360

    • Related Report
      2022 Research-status Report
  • [Journal Article] <i>TNFRSF10A</i> downregulation induces retinal pigment epithelium degeneration during the pathogenesis of age-related macular degeneration and central serous chorioretinopathy2022

    • Author(s)
      Mori Kenichiro、Ishikawa Keijiro、Fukuda Yosuke、Ji Rui、Wada Iori、Kubo Yuki、Akiyama Masato、Notomi Shoji、Murakami Yusuke、Nakao Shintaro、Arakawa Satoshi、Shiose Satomi、Hisatomi Toshio、Yoshida Shigeo、Kannan Ram、Sonoda Koh-Hei
    • Journal Title

      Human Molecular Genetics

      Volume: - Issue: 13 Pages: 2194-2206

    • DOI

      10.1093/hmg/ddac020

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Role of interferons in diabetic retinopathy2021

    • Author(s)
      Li Bing-Yan、Tan Wei、Zou Jing-Ling、He Yan、Yoshida Shigeo、Jiang Bing、Zhou Ye-Di
    • Journal Title

      World Journal of Diabetes

      Volume: 12 Issue: 7 Pages: 939-953

    • DOI

      10.4239/wjd.v12.i7.939

    • Related Report
      2021 Research-status Report
  • [Presentation] Increased expression of regulator of G-protein signaling 5 (RGS) in proliferative diabetic retinopathy2021

    • Author(s)
      Furushima K, Kato N, Ishibashi Y, Haruta M, Yoshida S
    • Organizer
      ARVO
    • 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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