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- W2077825900 abstract "The spinocerebellar ataxias (SCAs) are dominantly inherited disorders that primarily affect coordination of motor function but also frequently involve other brain functions. The models described in this review address mechanisms of trinucleotide-repeat expansions, particularly those relating to polyglutamine expression in the mutant proteins. Modeling chronic late-onset human ataxias in mice is difficult because of their short life-span. While this potential hindrance has been partially overcome by using over-expression of the mutant gene, and/or worsening of the mutation by increasing the length of the trinucleotide repeat expansion, interpretation of results from such models and extrapolation to the human condition should be cautious. Nevertheless, genetically engineered murine models of these diseases have enhanced our understanding of the pathogenesis of many of these conditions. A common theme in many of the polyglutamine-repeat diseases is nuclear localization of mutant protein, with resultant effects on gene regulation. Conditional mutant models and transgenic knock-down therapy have demonstrated the potential for reversibility of disease when production of mutant protein is halted. Several other genetically engineered murine models of SCA also have begun to show utility in the identification and assessment of more classical drug-based therapeutic modalities." @default.
- W2077825900 created "2016-06-24" @default.
- W2077825900 creator A5005772078 @default.
- W2077825900 creator A5046940016 @default.
- W2077825900 creator A5051243829 @default.
- W2077825900 date "2012-05-01" @default.
- W2077825900 modified "2023-10-17" @default.
- W2077825900 title "Genetically engineered mouse models of the trinucleotide-repeat spinocerebellar ataxias" @default.
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