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Molecular Pathogenesis of Polyglutamine Diseases Yuji Takahashi 1 1Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry Keyword: 凝集体 , 蛋白質ミスフォールディング , 遺伝子転写 , ミトコンドリア機能異常 , RNA毒性 , aggregates , protein misfolding , transcriptional dysregulation , mitochondrial dysfunction , RNA toxicity pp.901-912
Published Date 2017/8/1
DOI https://doi.org/10.11477/mf.1416200841
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Abstract

Polyglutamine diseases result from gain-of-function mutations. The expanded polyglutamine tracts lead to conformational changes in proteins, resulting in their aggregation. The intermediates including monomers or oligomers, are more toxic than the aggregates to neurons. At the molecular level, protein misfolding, transcriptional dysregulation, deranged calcium homeostasis, impaired cytoskeleton/axonal transport, mitochondrial dysfunction, and RNA toxicity contribute to disease progression. Understanding the underlying pathogenesis facilitates development of therapy for polyglutamine diseases.


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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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