2019 Fiscal Year Final Research Report
Development of novel peptides for protecting retinal ganglion cells.
Project/Area Number |
16K20298
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Ophthalmology
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Research Institution | Iwate University |
Principal Investigator |
Ozaki Taku 岩手大学, 理工学部, 准教授 (70621069)
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Project Period (FY) |
2016-04-01 – 2020-03-31
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Keywords | ペプチド / 点眼薬 / 緑内障 / 網膜神経節細胞 / ミトコンドリア / カルパイン / モデルマウス / 神経保護 |
Outline of Final Research Achievements |
The purpose of this study was to develop a novel eye drops for glaucoma. We have recently succeeded in developing a peptide that specifically inhibits mitochondrial calpain-1, which is related to cell death in the retina. The peptide was delivered to the retina and optic disc by eye drops, and a protective effect on photoreceptor cells was observed in an animal model of retinitis pigmentosa. A protective effect was also observed against ganglion cell death in the ocular hypertension / ischemia. In the present study, the efficacy of the peptide was confirmed by comprehensively evaluating the effect of the peptide on ganglion cell death using cultured cells, organ culture retina, and glaucoma model mouse.
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Free Research Field |
細胞生化学
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Academic Significance and Societal Importance of the Research Achievements |
現在の緑内障治療は眼圧下降を目的として行われているが、眼圧が正常または眼圧を充分に下降させてもなお視野障害が進行する症例が本邦の約7割を占めるため、神経節細胞の保護を目的とした治療薬の開発が強く望まれている。申請者らは以前、緑内障性神経節細胞死においてミトコンドリアカルパインとAIFが関与していることを世界に先駆けて証明した。さらに、本研究により、新規緑内障治療薬の候補薬剤を新たに生み出したことで、非臨床試験へと展開できる可能性が見出された。
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