CRISPR/Cas9 gene editing in vitro and in retinal cells in vivo

CRISPR/Cas9 is an efficient tool to knock down specific genes in various organisms. In this chapter, we describe how to assess knock-down of human Rhodopsin (RHO) gene carrying the P23H mutation in vitro, in engineered HeLa cells and in vivo, in P23H RHO transgenic mice. To this aim, we report two molecular assays: site-specific PCR on P23H RHO cells treated with CRISPR/Cas9 and Western blotting analysis on retinal cells prepared from P23H RHO transgenic mice electroporated with CRISPR/Cas9 and GFP plasmids.