ArticleMolecular therapy. Methods & clinical development2025
Enhanced retinal pigment epithelial cells as a delivery vehicle for retinal disease.
Article in Molecular therapy. Methods & clinical development, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
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Abstract
Age-related macular degeneration (AMD) represents a major global health burden, with current estimates suggesting that up to 200 million people are affected globally. While effective treatments exist for the exudative form of the disease termed choroidal neovascular AMD, there remain challenges associated with long-term responses to treatment and the ongoing parallel development of the non-exudative form of AMD. Here, we sought to develop an approach for long-term delivery of both aflibercept, a decoy receptor that neutralises vascular endothelial growth factor and a concomitant treatment focused on treating the non-exudative form of AMD. To this end, we developed a series of induced pluripotent stem cell (iPS)-derived retinal pigment epithelial (RPE) cell lines that stably expressed aflibercept and/or sCD59. These cell lines were shown to produce high concentrations of both proteins. Sub-retinal injection of enhanced RPE cells potently prevented leakage of neovascular lesions in the JR5558 mouse model of retinal and choroidal neovascularization. Early results described here suggest that enhanced iPS-derived RPE cells could represent a novel approach to the long-term delivery of therapeutic agents to the eye.
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