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Development of a new anti-ocular inflammation therapy using omega-3 fatty acids that targets dendritic cells

Research Project

Project/Area Number 22K16953
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Uchi Shohei  山口大学, 医学部附属病院, 助教 (20939277)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2022: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsぶどう膜炎 / 樹状細胞 / 免疫細胞移植 / オメガ3脂肪酸 / サイトカイン / ケモカイン / 眼内炎症 / 自己炎症性疾患 / オメガ3不飽和脂肪酸 / オメガ3脂肪酸
Outline of Research at the Start

ぶどう膜炎はステロイドにより急性期の炎症を沈静化する治療を行うが、局所・全身治療ともに副作用が伴う。オメガ3脂肪酸が抗炎症効果や血管新生抑制効果を有すること、その抗炎症作用がDCを介すことに着目し、本研究ではステロイド治療に代わる新治療法開発を目指していく。

Outline of Final Research Achievements

Uveitis is an intraocular inflammation caused by an excessive immune response. Although steroids are used to treat the acute phase of the disease, long-term use is difficult due to their many side effects. The researchers focused on omega-3 fatty acids and investigated their anti-inflammatory effects. They showed that omega-3 fatty acids suppress the Th1/Th17 cell lineage and exhibit anti-inflammatory effects in a mouse uveitis model, especially via dendritic cells (DC) among antigen-presenting cells (APC). Furthermore, we showed that DCs isolated from the spleens of mice fed omega-3 fatty acids can suppress intraocular inflammation and systemic inflammatory cytokines.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は、細胞免疫移植がぶどう膜炎治療の新たな可能性を示すものである。しかしながら、細胞免疫移植には費用や安全性の問題がある。また、オメガ3脂肪酸を用いた薬剤の治療応用には、保存性や酸化、全身投与の問題がある。

Report

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

    (1 results)

All 2023

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results)

  • [Journal Article] Efficacy of ripasudil in reducing intraocular pressure and medication score for ocular hypertension with inflammation and corticosteroid2023

    • Author(s)
      Yanai R、Kobayashi Mi、Nagai T、Teranishi S、Wakuta M、Kimura K
    • Journal Title

      International Journal of Ophthalmology

      Volume: 16 Issue: 6 Pages: 904-908

    • DOI

      10.18240/ijo.2023.06.11

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access

URL: 

Published: 2022-04-19   Modified: 2025-01-30  

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