Exercise and genetic rescue of SCA1 via the transcriptional repressor Capicua.
Exercise and genetic rescue of SCA1 via the transcriptional repressor Capicua.
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DOI:
10.1126/science.1212673
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发表时间:
2011-11-04
期刊:
影响因子:
--
通讯作者:
Zoghbi HY
中科院分区:
文献类型:
--
作者:
Fryer JD;Yu P;Kang H;Mandel-Brehm C;Carter AN;Crespo-Barreto J;Gao Y;Flora A;Shaw C;Orr HT;Zoghbi HY
Spinocerebellar ataxia type 1 (SCA1) is a fatal neurodegenerative disease caused by expansion of a translated CAG repeat in Ataxin-1 (ATXN1). To determine the long-term effects of exercise, we implemented a mild exercise regimen in a mouse model of SCA1 and found a considerable improvement in survival accompanied by upregulation of epidermal growth factor and consequential downregulation of Capicua, an ATXN1 interactor. Offspring of Capicua mutant mice bred to SCA1 mice showed significant improvement of all disease phenotypes. Although polyglutamine-expanded Atxn1 caused some loss of Capicua function, further reducing Capicua levels, either genetically or by exercise, mitigated the disease phenotypes. Thus, exercise might have long-term beneficial effects in other ataxias and neurodegenerative diseases.
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