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• W1532156125 abstract "Huntington's disease (HD) is a neurological disorder caused by mutations in the huntingtin (HTT) gene, the product of which leads to selective and progressive neuronal cell death in the striatum and cortex. Transcriptional dysregulation has emerged as a core pathologic feature in the CNS of human and animal models of HD. It is still unclear whether perturbations in gene expression are a consequence of the disease or importantly, contribute to the pathogenesis of HD.To examine if transcriptional dysregulation can be ameliorated with antisense oligonucleotides that reduce levels of mutant Htt and provide therapeutic benefit in the YAC128 mouse model of HD.Quantitative real-time PCR analysis was used to evaluate dysregulation of a subset of striatal genes in the YAC128 mouse model. Transcripts were then evaluated following ICV delivery of antisense oligonucleotides (ASO). Rota rod and Porsolt swim tests were used to evaluate phenotypic deficits in these mice following ASO treatment.Transcriptional dysregulation was detected in the YAC128 mouse model and appears to progress with age. ICV delivery of ASOs directed against mutant Htt resulted in reduction in mutant Htt levels and amelioration in behavioral deficits in the YAC128 mouse model. These improvements were correlated with improvements in the levels of several dysregulated striatal transcripts.The role of transcriptional dysregulation in the pathogenesis of Huntington's disease is not well understood, however, a wealth of evidence now strongly suggests that changes in transcriptional signatures are a prominent feature in the brains of both HD patients and animal models of the disease. Our study is the first to show that a therapeutic agent capable of improving an HD disease phenotype is concomitantly correlated with normalization of a subset of dysregulated striatal transcripts. Our data suggests that correction of these disease-altered transcripts may underlie, at least in part, the therapeutic efficacy shown associated with ASO-mediated correction of HD phenotypes and may provide a novel set of early biomarkers for evaluating future therapeutic concepts for HD." @default.
• W1532156125 created "2016-06-24" @default.
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• W1532156125 date "2013-01-01" @default.
• W1532156125 modified "2023-10-04" @default.
• W1532156125 title "Antisense Oligonucleotide-Mediated Correction of Transcriptional Dysregulation is Correlated with Behavioral Benefits in the YAC128 Mouse Model of Huntington's Disease" @default.
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• W1532156125 doi "https://doi.org/10.3233/jhd-130057" @default.
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