2021 Fiscal Year Final Research Report
Development of eyedrop treatment of age-related macular degeneration by high-density lipoprotein
Project/Area Number |
20K18378
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 56060:Ophthalmology-related
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Research Institution | Kyoto University |
Principal Investigator |
Kenji Suda 京都大学, 医学研究科, 助教 (70779157)
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Project Period (FY) |
2020-04-01 – 2022-03-31
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Keywords | 加齢黄斑変性 / 高密度リポ蛋白質 / CD13 / 点眼 / ドラッグデリバリー |
Outline of Final Research Achievements |
We aim to develop an eyedrop treatment method for age-related macular degeneration (AMD) using bio-nanomaterials that have a high affinity for blood vessels. The current state of AMD treatment is extremely invasive, injecting antibody drugs into the vitreous, and alternative treatment is strongly required. Therefore, in this study, we modified NGR peptide that recognizes CD13 expressed on the vascular endothelium into a high-density lipoprotein (HDL) mutant that the applicant independently developed as an eyedrop, and evaluated thepeutic effect of its instillation by AMD mouse model. As a result, it was confirmed that the HDL mutant with NGR had a significant therapeutic effect compared to HDL mutant without NGR.
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Free Research Field |
眼科学
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Academic Significance and Societal Importance of the Research Achievements |
加齢黄斑変性や糖尿病網膜症は、我が国における失明原因の多くを占めており、後眼部での異常な血管新生がその病態である。既存の治療方法としては、定期的に医師が患者の眼球内に投与する(硝子体内注射、図1)というものであり、注射回数の増加が医療者側の労働負担・患者側の通院負担また注射による感染のリスクなど、多大な社会コストがかかっているのが現状である。そのため点眼投与によるドラッグデリバリーシステム(DDS)の構築が待たれており、本研究の成果が患者および医療者の負担を軽減することが期待される。
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