Transcriptomics

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COCO/DAND5 inhibits developmental and pathological ocular angiogenesis


ABSTRACT: Neovascularization contributes to multiple visual disorders including age-related macular degeneration (AMD). Current therapies for treating ocular angiogenesis are centered on the inhibition of vascular endothelial growth factor (VEGF). While clinically effective, some AMD patients are refractory or develop resistance to anti-VEGF and concerns of increased risks of developing geographic atrophy following long-term treatment have been raised. Identification of alternative pathways to inhibit pathological angiogenesis is thus important. We have identified a novel inhibitor of angiogenesis, COCO/DAND5, a member of the Cerberus-related DAN family. We demonstrate that COCO inhibits sprouting, migration and cellular proliferation of cultured endothelial cells. Intravitreal injections of COCO inhibited retinal vascularization during development and in models of retinopathy of prematurity and AMD. COCO equally abrogated angiogenesis in choroid explants and in a model of choroidal neovascularization. Mechanistically, COCO inhibited the expression of TGFβ and BMP pathwaysand altered ATP production, glucose uptake and redox balance of endothelial cells. Together, these data show that COCO is an inhibitor of retinal and choroidal angiogenesis, possibly representing a therapeutic option for the treatment of neovascular ocular diseases.

ORGANISM(S): Homo sapiens

PROVIDER: GSE160099 | GEO | 2020/12/22

REPOSITORIES: GEO

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