Generation of three isogenic control lines from patient-derived iPSCs carrying bi-allelic ABCA4 variants underlying Stargardt disease.

Stargardt disease, a progressive retinal disorder, is associated with bi-allelic variants in ABCA4. Employing the CRISPR/Cas9 approach, we generated isogenic control lines (RMCGENi005-A-1, RMCGENi018-A-1, RMCGENi017-A-1) for each of three induced pluripotent stem cell lines (RMCGENi005-A, RMCGENi018-A, RMCGENi017-A) derived from Stargardt patients carrying compound heterozygous ABCA4 variants. All of the generated lines showed pluripotent characteristics, no chromosomal aberrations and no indication of off-targets. The availability of these isogenic control lines will allow us to have a fair comparison between health and disease state within our studies on Stargardt disease.