Document Detail


A reporter-based screen to identify potent 3' trans-splicing molecules for endogenous RNA repair.
MedLine Citation:
PMID:  23320616     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
In the treatment of genetic disorders, repairing defective pre-mRNAs by RNA trans-splicing has become an emerging alternative to conventional gene therapy. Previous studies have made clear that the design of the binding domains of the corrective RNA trans-splicing molecules (RTMs) is crucial for their optimal functionality. We established a reporter-based screening method which allows for selection of highly functional RTMs from a large pool of variants. The efficiency and functionality of the screen were validated in the COL7A1 gene, in which mutations are the cause of the skin disease dystrophic epidermolysis bullosa. Comparison of RTMs containing different binding domains hybridizing to COL7A1 intron 64/exon 65 revealed highly different trans-splicing efficiencies. Isolated RTMs were then adapted for endogenous trans-splicing in an RDEB keratinocyte cell line expressing reduced levels of COL7A1 mRNA. Our results confirm the applicability and relevance of pre-screening reporter RTMs, as significant levels of endogenous COL7A1 mRNA repair were seen with RTMs identified as being highly efficient in our screening system.
Authors:
Eva Maria Murauer; Ulrich Koller; Stefan Hainzl; Verena Wally; Johann Wolfgang Bauer
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-16
Journal Detail:
Title:  Human gene therapy methods     Volume:  -     ISSN:  1946-6544     ISO Abbreviation:  Hum Gene Ther Methods     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101573202     Medline TA:  Hum Gene Ther Methods     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Division of Molecular Dermatology and EB House Austria, Department of Dermatology, Paracelsus Medical University, Salzburg, Austria; e.murauer@salk.at.
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