Knock-out of specific DMD gene isoforms in the parental hESC line SA001 using CRISPR/Cas9.

The DMD gene, which encodes the protein dystrophin, is involved in a group of diseases known as dystrophinopathies, which includes Duchenne Muscular Dystrophy (DMD). DMD is a progressive and lethal muscular disorder mainly affecting boys that results from the loss of function of the longer dystrophin isoform DP427 in skeletal muscles. Dystrophinopathies are also associated with poorly understood neurocognitive and neurodevelopmental disorders. To investigate the role of dystrophin isoforms in neural development, we specifically disrupted three dystrophin isoforms expressed in the brain, namely DP427, DP140 and DP71, in the male human embryonic stem cell line SA001 using the CRISPR/Cas9 system. (100 / 100 words).