AON-mediated Exon Skipping Restores Ciliation in Fibroblasts Harboring the Common Leber Congenital Amaurosis CEP290 Mutation.

AON-mediated Exon Skipping Restores Ciliation in Fibroblasts Harboring the Common Leber Congenital Amaurosis CEP290 Mutation.
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DOI:
10.1038/mtna.2012.21
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发表时间:
2012-06-26
期刊:
Molecular therapy. Nucleic acids
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Leber先天性黑眼病是一种严重的遗传性视网膜营养不良,导致先天性或早发性失明。最常见的致病突变(>10%)位于CEP290基因(c.2991+1655A>G)内含子26的深处。它创建了一个强大的剪接供体位点,导致插入编码过早终止密码子的神秘外显子。在本研究中,我们证明使用反义寡核苷酸(AON)可以有效地跳过突变的隐蔽外显子,并恢复患者成纤维细胞中的中介作用。这些数据支持AON介导的外显子跳过策略纠正异常剪接的可行性。
Leber congenital amaurosis (LCA) is a severe hereditary retinal dystrophy responsible for congenital or early-onset blindness. The most common disease-causing mutation (>10%) is located deep in intron 26 of the CEP290 gene (c.2991+1655A>G). It creates a strong splice donor site that leads to insertion of a cryptic exon encoding a premature stop codon. In the present study, we show that the use of antisense oligonucleotides (AONs) allow an efficient skipping of the mutant cryptic exon and the restoration of ciliation in fibroblasts of affected patients. These data support the feasibility of an AON-mediated exon skipping strategy to correct the aberrant splicing.
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