Inhibition of mutant huntingtin expression by RNA duplex targeting expanded CAG repeats.
Inhibition of mutant huntingtin expression by RNA duplex targeting expanded CAG repeats.
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DOI:
10.1093/nar/gkr156
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发表时间:
2011-07
影响因子:
14.9
通讯作者:
Krzyzosiak WJ
中科院分区:
文献类型:
--
作者:
Fiszer A;Mykowska A;Krzyzosiak WJ
The specific silencing of the gene of interest is the major objective of RNA interference technology; therefore, unique sequences but not abundant sequence repeats are targeted by silencing reagents. Here, we describe the targeting of expanded CAG repeats that occur in transcripts derived from the mutant allele of the gene implicated in Huntington’s disease (HD) in the presence of the normal allele and other human mRNAs containing CAG and CUG repeat tracts. We show that a high degree of silencing selectivity may be achieved between the repeated sequences. We demonstrate preferential suppression of the mutant huntingtin allele and concomitant activation of the normal huntingtin allele in cell lines derived from HD patients that were transfected with short RNA duplexes composed of CAG and CUG repeats containing mutations at specific positions. These effects may lead to promising therapeutic modalities for HD, a condition for which no therapy presently exists.
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