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Trial of the ophthalmic solution of PPAR alpha for clinical application

Research Project

Project/Area Number 19K18859
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionNippon Medical School

Principal Investigator

Takeshi Arima  日本医科大学, 医学部, 講師 (00823113)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsPPARα / PPARβ / PPARγ / PPAR / 角膜創傷治癒 / 血管新生 / PPAR alpha / neovascularization / angiopoietin-2 / VEGF / PPAR beta / PPAR gamma / LV-SEM
Outline of Research at the Start

ペルオキシソーム増殖剤活性化受容体(PPAR)αは抗脂血症剤として広く普及している。近年、PPARαは、本来の働きである脂質代謝以外の作用が報告されており、我々はPPARαアゴニストを点眼剤にすることで抗血管新生作用を有することを証明した。血管新生緑内障や糖尿病網膜症といった眼内新生血管病に対してPPARαアゴニストの点眼剤としての臨床応用や新たな投与方法(内服・硝子体投与)が可能か検討を行う。

Outline of Final Research Achievements

In this study, PPARβ/δ and PPARγ, were similarly administered to eye drops, and their effects on wound healing were evaluated. PPARβ/δ agonist eye drops inhibited inflammation while promoting angiogenesis. When PPARβ/δ agonist eye drops were administered to the normal cornea, angiogenesis did not occur.
The PPARγ agonist ophthalmic solution enhanced its action and suppressed fibrosis more when used as a combination drug with PPARα. Each PPAR and PPAR combination drug has the potential to become a candidate for a new therapeutic strategy for intractable eye diseases such as neovascular glaucoma and diabetic retinopathy, and we will continue our research.

Academic Significance and Societal Importance of the Research Achievements

PPARαは角膜上皮細胞、網膜内顆粒層、血管内皮細胞 に多く、PPARβ/δは角膜上皮細胞、角膜内皮細胞に、そしてPPARγは角膜上皮細胞、炎症浸潤細胞に多く発現を認めた。局在と役割には相関関係があり、網膜内顆粒層に発現の多いPPARαに関して、硝子体内注射による網膜血管新生病変への新規治療法となる可能性がある。PPARβ/δアゴニストに関しては、角膜内皮細胞に発現が多くKi67の活性化を伴う細胞分裂能の促進を認める点から、角膜内皮細胞の再生治療薬候補となる可能性がある。PPARγアゴニストは炎症を抑えるだけでなく創傷治癒を促すM2マクロファージの分化を促す点から消炎治療薬となる可能性がある。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (18 results)

All 2022 2021 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Effects of Selective Peroxisome Proliferator Activated Receptor Agonists on Corneal Epithelial Wound Healing2021

    • Author(s)
      Yutaro Tobita
    • Journal Title

      Pharmaceuticals

      Volume: 14 Issue: 2 Pages: 88-88

    • DOI

      10.3390/ph14020088

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Combination of Peroxisome Proliferator-Activated Receptor (PPAR) Alpha and Gamma Agonists Prevents Corneal Inflammation and Neovascularization in a Rat Alkali Burn Model2020

    • Author(s)
      Yuji Nakano
    • Journal Title

      Int J Mol Sci

      Volume: 21 Issue: 14 Pages: 5093-5093

    • DOI

      10.3390/ijms21145093

    • Related Report
      2020 Research-status Report
  • [Journal Article] Peroxisome Proliferator-Activated Receptor Beta/Delta Agonist Suppresses Inflammation and Promotes Neovascularization2020

    • Author(s)
      Yutaro Tobita
    • Journal Title

      Int J Mol Sci

      Volume: 21 Issue: 15 Pages: 5296-5296

    • DOI

      10.3390/ijms21155296

    • Related Report
      2020 Research-status Report
  • [Presentation] LV-SEMで観察した角膜アルカリ外傷モデルでのPPARα, γ合剤点眼の抗線維化作用2022

    • Author(s)
      高橋慶
    • Organizer
      第126回日本眼科学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 角膜アルカリ外傷モデルにおけるPPPARα、γ合剤点眼の線維化抑制作用の検討2021

    • Author(s)
      中野優治
    • Organizer
      第125回日本眼科学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] PPARβ/δアゴニスト点眼の抗炎症効果及び血管新生促進作用2021

    • Author(s)
      飛田悠太郎
    • Organizer
      第125回日本眼科学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 角膜アルカリ外傷モデルにおけるPPARα点眼剤のNF-kB、IkBへの関与2020

    • Author(s)
      有馬武志
    • Organizer
      日本眼科学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] peroxisome proliferator activated receptor(PPAR)α、β、γ点眼の角膜上皮創傷治癒への影響2020

    • Author(s)
      飛田悠太郎
    • Organizer
      日本眼科学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 低真空走査型電子顕微鏡を用いた新しい角膜と新生血管の観察法2019

    • Author(s)
      有馬武志
    • Organizer
      日本眼科学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] PPARα点眼剤とPPARγ点眼剤の特性の比較2019

    • Author(s)
      中野優治
    • Organizer
      日本眼科学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 水素水点眼の直接的および間接的な抗酸化作用効果2019

    • Author(s)
      飛田悠太郎
    • Organizer
      日本眼科学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] A new observation method using low-vacuum scanning electron microscopy in the corneal wound healing2019

    • Author(s)
      有馬武志
    • Organizer
      Asia-Pacific Academy of Ophthalmology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Hydrogen promotes M2 macrophage polarization through activation of Cu, Zn superoxide dismutase enzyme2019

    • Author(s)
      飛田悠太郎
    • Organizer
      Asia-Pacific Academy of Ophthalmology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Peroxisome proliferator-activated receptor alpha agonist suppresses neovascularization by reducing both vascular endothelial growth factor and angiopoietin-22019

    • Author(s)
      中野優治
    • Organizer
      Asia-Pacific Academy of Ophthalmology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] peroxisome proliferator activated receptor alpha 点眼剤の抗炎症・抗新生血管作用2019

    • Author(s)
      有馬武志
    • Organizer
      日本医科大学医学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] Peroxisome proliferator-activated receptor alpha agonist suppresses neovascularization by reducing both vascular endothelial growth factor and angiopoietin-2 in corneal alkali burn2019

    • Author(s)
      有馬武志
    • Organizer
      Kyoto Cornea Club
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 低真空走査型電子顕微鏡を用いた角膜新生血管の経時変化の観察2019

    • Author(s)
      矢野風
    • Organizer
      角膜カンファレンス
    • Related Report
      2019 Research-status Report
  • [Presentation] 水素水点眼による角膜上皮細胞におけるSOD1活性の上昇2019

    • Author(s)
      木村彩香
    • Organizer
      角膜カンファレンス
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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