Exon skipping uses antisense oligonucleotides as a treatment for genetic diseases. The antisense oligonucleotides used for exon skipping are designed to bypass premature stop codons in the target RNA and restore reading frame disruption. Exon skipping is currently being tested in humans with dystrophin gene mutations who have Duchenne muscular dystrophy. For Duchenne muscular dystrophy, the rationale for exon skipping derived from observations in patients with naturally occurring dystrophin gene mutations that generated internally deleted but partially functional dystrophin proteins. We have now expanded the potential for exon skipping by testing whether an internal, in-frame truncation of a transmembrane protein γ-sarcoglycan is functional. We generated an internally truncated γ-sarcoglycan protein that we have termed Mini-Gamma by deleting a large portion of the extracellular domain. Mini-Gamma provided functional and pathological benefits to correct the loss of γ-sarcoglycan in a
Quan Q. Gao, Eugene Wyatt, Jeff A. Goldstein, Peter LoPresti, Lisa M. Castillo, Alec Gazda, Natalie Petrossian, Judy U. Earley, Michele Hadhazy, David Y. Barefield, Alexis R. Demonbreun, Carsten Bönnemann, Matthew Wolf, Elizabeth M. McNally
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