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CCL3-CCR5 axis is potential therapeutic target in retinal degeneration.

Research Project

Project/Area Number 15K20288
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Ophthalmology
Research InstitutionJikei University School of Medicine

Principal Investigator

Kohno Hideo  東京慈恵会医科大学, 医学部, 講師 (60514536)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsマイクログリア / 網膜 / 加齢黄斑変性 / 炎症 / 網膜変性 / マラビロク / 網膜色素変性 / マクロファージ / 網膜色素変性症 / マウロファージ
Outline of Final Research Achievements

Severe visual loss in retinal degeneration is caused by photoreceptor cell death. In this study, we investigated the treatment effect of Maraviroc, an antiretroviral drug in the CCR5 receptor antagonist class used in the treatment of HIV infection, in retinal degeneration. We revealed previously that CCL3 and CCL4 are upregulated in degenerated retina, which used CCR5 as common receptor. Maraviroc, an antagonist for CCR5, administration may suppress CCL3 and CCL4 efficacy in degenerated retina and show therapeutic effect for retinal degeneration.

Academic Significance and Societal Importance of the Research Achievements

加齢黄斑変性(AMD)や網膜色素変性(RP)を含む網膜変性は視細胞死を生じ失明へと直結する疾患群である。近年AMDに対しては滲出性AMDにおける脈絡膜新生血管に対する抗新生血管療法が行われ、一定の治療効果を上げている。しかし脈絡膜新生血管に付随して生じる視細胞死や、脈絡膜新生血管を伴わない萎縮性AMDに対する治療法は依然として存在しない。またRPにおいては臨床使用されている治療法は存在しない。これらの網膜変性疾患群において失明へとつながる視細胞死を防ぐ、もしくは遅らせる治療法を開発することができれば網膜変性の患者に対する恩恵は大きなものになると考えられる。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (7 results)

All 2017 2016 2015

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (4 results) (of which Invited: 4 results)

  • [Journal Article] Three-year visual outcomes of intravitreal ranibizumab with or without photodynamic therapy for polypoidal choroidal vasculopathy.2016

    • Author(s)
      Sakai T, Okano K, Kohno H, Tsuneoka H.
    • Journal Title

      Acta Ophthalmol.

      Volume: 94 Issue: 8

    • DOI

      10.1111/aos.13130

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Expression pattern of Ccr2 and Cx3cr1 in inherited retinal degeneration.2015

    • Author(s)
      Kohno H, Koso H, Okano K, Sundermeier TR, Saito S, Watanabe S, Tsuneoka H, Sakai T.
    • Journal Title

      Journal of Neuroinflammation

      Volume: 12 Issue: 1 Pages: 188-188

    • DOI

      10.1186/s12974-015-0408-3

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Association between the major histocompatibility complex and clinical response to infliximab therapy in patients with Behçet uveitis.2015

    • Author(s)
      Kuroyanagi K, Sakai T, Kohno H, Okano K, Akiyama G, Aoyagi R, Inaba M, Tsuneoka H.
    • Journal Title

      Jpn J Ophthalmol

      Volume: 59 Issue: 6 Pages: 401-8

    • DOI

      10.1007/s10384-015-0404-2

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] 教育セミナー 網膜硝子体の感染;硝子体内注射2017

    • Author(s)
      神野 英生
    • Organizer
      第40回日本眼科手術学会学術総会
    • Place of Presentation
      東京
    • Year and Date
      2017-01-28
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 遺伝性網膜変性におけるCcr2およびCx3cr1の発現様式.2017

    • Author(s)
      神野 英生
    • Organizer
      第121回日本眼科学会総会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 網膜変性疾患における炎症の関与.2016

    • Author(s)
      神野 英生
    • Organizer
      第120回日本眼科学会総会
    • Place of Presentation
      仙台
    • Year and Date
      2016-04-07
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 網膜変性における炎症と視細胞細胞死の関係2015

    • Author(s)
      神野 英生
    • Organizer
      第49回日本眼炎症学会
    • Place of Presentation
      大阪
    • Year and Date
      2015-07-11
    • Related Report
      2015 Research-status Report
    • Invited

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Published: 2015-04-16   Modified: 2020-03-30  

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