Chapter title |
Antisense-Mediated Splice Modulation to Reframe Transcripts
|
---|---|
Chapter number | 35 |
Book title |
Exon Skipping and Inclusion Therapies
|
Published in |
Methods in molecular biology, September 2018
|
DOI | 10.1007/978-1-4939-8651-4_35 |
Pubmed ID | |
Book ISBNs |
978-1-4939-8650-7, 978-1-4939-8651-4
|
Authors |
Matthias Titeux, Sandrina Turczynski, Nathalie Pironon, Alain Hovnanian, Titeux, Matthias, Turczynski, Sandrina, Pironon, Nathalie, Hovnanian, Alain |
Abstract |
Numerous genetic disorders are caused by loss-of-function mutations that disrupt the open reading frame of the gene either by nonsense or by frameshift (insertion, deletion, indel, or splicing) mutations. Most of the time, the result is the absence of functional protein synthesis due to mRNA degradation by nonsense-mediated mRNA decay, or rapid degradation of a truncated protein. Antisense-based splicing modulation is a powerful tool that has the potential to treat genetic disorders by restoring the open reading frame through selective removal of the mutated exon, or by restoring correct splicing.We have developed this approach for a severe skin genetic disorder, recessive dystrophic epidermolysis bullosa, caused by mutations in the COL7A1 gene encoding type VII collagen. This gene is particularly suited for exon skipping approaches due to its unique genomic structure. It is composed of 118 exons, 83 of which are in frame. Moreover, these exons encode a single repetitive collagenous domain.Using this gene as an example, we describe general methods that demonstrate the feasibility and efficacy of the antisense-mediated exon skipping strategy to reframe transcripts. |
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