Inventors:
Huda Zoghbi - Houston TX, US
Kei Watase - Houston TX, US
Christopher Cummings - Brookline MA, US
International Classification:
A01K067/027
Abstract:
The present invention utilizes a “knock-in” approach to provide a transgenic mammal containing integrated into its genome a repeating nucleotide sequence encoding a polyglutamine comprising at least about 154, preferably at least about 160, 200, 300, 400, 500, and up to 600 or more contiguous glutamine residues. The transgenic mammals normally display observable phenotypic changes. As such, they may serve as a model for disease processes in humans for such diseases as spinobulbar muscular atrophy (SBMA), Huntington's disease (HD), dentatorubral pallidoluysian atrophy (DRPLA), and the spinocerebellar ataxias types 1, 2, 3, 6, 7, and 17. As a result of displaying pathology indicative of a human disease, the efficacy of an agent for treating human disease may be tested in the transgenic mammals.