期刊
JOURNAL OF CELLULAR AND MOLECULAR MEDICINE
卷 15, 期 12, 页码 2643-2651出版社
WILEY
DOI: 10.1111/j.1582-4934.2011.01260.x
关键词
dystrophin; DMD; Duchenne muscular dystrophy; zebrafish; muscle; exon skipping
资金
- National Health and Medical Research Council of Australia
Duchenne muscular dystophy (DMD) is a severe muscle wasting disease caused by mutations in the dystrophin gene. By utilizing antisense oligonucleotides, splicing of the dystrophin transcript can be altered so that exons harbouring a mutation are excluded from the mature mRNA. Although this approach has been shown to be effective to restore partially functional dystrophin protein, the level of dystrophin protein that is necessary to rescue a severe muscle pathology has not been addressed. As zebrafish dystrophin mutants (dmd) resemble the severe muscle pathology of human patients, we have utilized this model to evaluate exon skipping. Novel dmd mutations were identified to enable the design of phenotype rescue studies via morpholino administration. Correlation of induced exon-skipping efficiency and the level of phenotype rescue suggest that relatively robust levels of exon skipping are required to achieve significant therapeutic ameliorations and that pre-screening analysis of exon-skipping drugs in zebrafish may help to more accurately predict clinical trials for therapies of DMD.
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