{Reference Type}: Journal Article
{Title}: Somatic CAG Repeat Stability in a Transgenic Sheep Model of Huntington's Disease.
{Author}: Handley RR;Reid SJ;Burch Z;Jacobsen JC;Gillis T;Correia K;Rudiger SR;McLaughlin CJ;Bawden CS;MacDonald ME;Wheeler VC;Snell RG;
{Journal}: J Huntingtons Dis
{Volume}: 13
{Issue}: 1
{Year}: 2024 Feb 18
暂无{DOI}: 10.3233/JHD-231516
{Abstract}: Somatic instability of the huntingtin (HTT) CAG repeat mutation modifies age-at-onset of Huntington's disease (HD). Understanding the mechanism and pathogenic consequences of instability may reveal therapeutic targets. Using small-pool PCR we analyzed CAG instability in the OVT73 sheep model which expresses a full-length human cDNA HTT transgene. Analyses of five- and ten-year old sheep revealed the transgene (CAG)69 repeat was remarkably stable in liver, striatum, and other brain tissues. As OVT73 sheep at ten years old have minimal cell death and behavioral changes, our findings support instability of the HTT expanded-CAG repeat as being required for the progression of HD.