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Therapeutic potential of anti-allergic drugs for the treatment of age-related macular degeneration

Research Project

Project/Area Number 25670230
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Immunology
Research InstitutionNagoya University

Principal Investigator

KANEKO Hiroki  名古屋大学, 医学(系)研究科(研究院), 助教 (20647458)

Co-Investigator(Kenkyū-buntansha) KACHI Shu  名古屋大学, 医学部附属病院, 講師 (30345904)
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords加齢黄斑変性 / ヒスタミン受容体 / 脈絡膜新生血管 / 抗血管新生 / マクロファージ / 血管内皮増殖因子 / ヒスタミンh4受容体
Outline of Final Research Achievements

We examined the therapeutic efficacy of reducing histamine receptor h4 (HRH4) expression in choroidal neovascularizations (CNVs) for the treatment of age-related macular degeneration (AMD).
Human HRH4 was confirmed only in CNV samples from AMD patients and not in the other subretinal tissues. Mouse HRH4 was expressed in the retinal pigment epithelium (RPE) only after inducing laser-CNV in wild-type mice, and it was co-localized with the macrophage marker F4/80. Laser-CNV volume was reduced in Hrh4-/- mice compared with that in wild-type mice, and JNJ7777120 successfully suppressed laser-induced CNV volume and pathological CNV leakage in wild-type mice. The eyes injected with JNJ7777120 did not show retinal degeneration. HRH4 was expressed in macrophages that accumulated around CNVs. Suppressing HRH4 expression led to the prevention of pathological vessel leakage without showing retinal toxicity, indicating that HRH4 has potential as a novel therapeutic target in AMD.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (2 results)

All 2015 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 2 results)

  • [Journal Article] Suppression of Laser-Induced Choroidal Neovascularization by the Oral Medicine Targeting Histamine Receptor H4 in Mice.2015

    • Author(s)
      Ijima R, Kaneko H, Ye F, Takayama K, Nagasaka Y, Kataoka K, Funahashi Y, Iwase T, Kachi S, Kato S, Terasaki H.
    • Journal Title

      Transl Vis Sci Technol

      Volume: 4 Pages: 6-6

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Histamine H4 receptor as a new therapeutic target for choroidal neovascularization in age-related macular degeneration.2014

    • Author(s)
      Kaneko H, Ye F, Ijima R, Kachi S, Kato S, Nagaya M, Higuchi A, Terasaki H.
    • Journal Title

      Br J Pharmacol.

      Volume: 171 Issue: 15 Pages: 3754-3754

    • DOI

      10.1111/bph.12737

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant

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Published: 2014-07-25   Modified: 2019-07-29  

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