Transcriptional profiling of striatum from a zQ175 KI mouse model of Huntington's disease with or without homozygous knockout of the Msh3 gene

Previous studies have suggested a strong association between lower MSH3 expression, reduced somatic repeat expansion, and slower disease onset and progression. The effects of a homozygous knock-out in the Msh3 gene on transcriptome phenotypes in striatum in six-month-old WT and zQ175 mice were studied. Striatum was isolated from 6-month-old mice. Transcriptomic analysis (RNASeq) was performed on four genotypes with 8 replicates per genotype: WT (WT for Htt and Msh3), zQ175 (zQ175 for Htt, WT for Msh3), WT.Msh3.HOM (WT for Htt, Homozygous for Msh3 KO), and zQ175.Msh3.HOM (zQ175 for Htt, Homozygous for Msh3 KO). Overall design: RNASeq analysis was performed on samples from the striatum tissues of 6-month-old mice with one of the following four genotypes: WT, WT.Msh3.HOM, zQ175, zQ175.Msh3.HOM. N = 8 per group (4M/4F except zQ175.Msh3.HOM which had 5M/3F).