U7 snRNAs induce correction of mutated dystrophin pre-mRNA by exon skipping.

Brun, C; Suter, D; Pauli, C; Dunant, P; Lochmüller, H; Burgunder, J M; Schümperli, Daniel; Weis, J (2003). U7 snRNAs induce correction of mutated dystrophin pre-mRNA by exon skipping. Cellular and molecular life sciences, 60(3), pp. 557-566. Springer

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Most cases of Duchenne muscular dystrophy are caused by dystrophin gene mutations that disrupt the mRNA reading frame. Artificial exclusion (skipping) of a single exon would often restore the reading frame, giving rise to a shorter, but still functional dystrophin protein. Here, we analyzed the ability of antisense U7 small nuclear (sn)RNA derivatives to alter dystrophin pre-mRNA splicing. As a proof of principle, we first targeted the splice sites flanking exon 23 of dystrophin pre-mRNA in the wild-type muscle cell line C2C12 and showed precise exon 23 skipping. The same strategy was then successfully adapted to dystrophic immortalized mdx muscle cells where exon-23-skipped dystrophin mRNA rescued dystrophin protein synthesis. Moreover, we observed a stimulation of antisense U7 snRNA expression by the murine muscle creatine kinase enhancer. These results demonstrate that alteration of dystrophin pre-mRNA splicing could correct dystrophin gene mutations by expression of specific U7 snRNA constructs.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Cell Biology
04 Faculty of Medicine > Service Sector > Institute of Pathology

UniBE Contributor:

Schümperli, Daniel

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

1420-682X

Publisher:

Springer

Language:

English

Submitter:

Daniel Schümperli

Date Deposited:

12 May 2015 08:29

Last Modified:

12 May 2015 08:29

PubMed ID:

12737315

BORIS DOI:

10.7892/boris.68851

URI:

https://boris.unibe.ch/id/eprint/68851

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