Targeted genome editing in vivo corrects a Dmd duplication restoring wild‐type dystrophin expression
Maino, Eleonora et al. (2021), Targeted genome editing in vivo corrects a Dmd duplication restoring wild‐type dystrophin expression, Dryad, Dataset, https://doi.org/10.5061/dryad.66t1g1k1d
Tandem duplication mutations are increasingly found to be the direct cause of many rare heritable diseases, accounting for up to 10% of cases. Unfortunately, animal models recapitulating such mutations are scarce, limiting our ability to study them and develop genome editing-based therapies. Here, we describe the generation of the Dup18-30 mouse model, harbouring a multi-exonic tandem duplication in the Dmd gene which recapitulates a human mutation. Duplication correction of this mouse was achieved by implementing a single-guide RNA (sgRNA) CRISPR/Cas9 approach. This strategy precisely removed a duplication mutation in vivo, restored full-length dystrophin expression, and was accompanied by improvements in both histopathological and clinical phenotypes. We conclude that CRISPR/Cas9 represents a powerful tool to accurately model and treat tandem-duplication mutations.
This dataset includes the deep amplicon sequencing analysis performed to detect single-sgRNA/Cas9 off-target and on-target effects in the Dup18-30 mice after treatment.
Duchenne Research Fund