Abstract
Genome editing and knockout by virus-based delivery of CRISPR/Cas9 may provide a new option to cure inherited and acquired ocular diseases. Here we describe development and application of lentivirus-based delivery vectors enabling knockout of the Vegfa gene. We show that Streptococcus pyogenes (Sp) Cas9 and single-guide RNAs (sgRNAs) delivered by such vectors selectively can ablate the vascular endothelial growth factor A (Vegfa) gene in mouse retina following a single administration. These findings may contribute to the development of a new therapeutic path in the treatment of ocular diseases including exudative age-related macular degeneration (AMD).
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