کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10766570 1050655 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Trehalose impairs aggregation of PrPSc molecules and protects prion-infected cells against oxidative damage
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Trehalose impairs aggregation of PrPSc molecules and protects prion-infected cells against oxidative damage
چکیده انگلیسی
Neurodegenerative disorders such as Alzheimer's, Huntington's, and prion diseases are characterized by abnormal protein deposits in the brain of affected patients. In prion diseases, a key event in the pathogenesis is the conversion of the normal prion protein (PrPc) into abnormal protease resistant PrPSc deposits, a phenomenon associated with a higher sensitivity to oxidative stress in vitro. In cellular models of Alzheimer and Huntington diseases, the disaccharide trehalose has been shown to be effective in inhibiting huntingtin and Aβ peptide aggregates and reducing their associated toxicity. We show in this study that trehalose treatment of prion-infected cells decreases the size of de novo produced PrPSc aggregates and modify their subcellular localization. Despite the fact that trehalose does not modify the protease resistance properties of PrPSc molecules, it significantly protects prion-infected cells from induced oxidative damage, suggesting that this compound is of therapeutic interest.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 374, Issue 1, 12 September 2008, Pages 44-48
نویسندگان
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