Downregulation of β-Soluble N-Ethylmaleimide-Sensitive Factor Attachment Protein: Proteomics-Based Identification in Early-Stage Prion Disease.

Downregulation of β-Soluble N-Ethylmaleimide-Sensitive Factor Attachment Protein: Proteomics-Based Identification in Early-Stage Prion Disease.
Neurodegener Dis. 2015 May 22;
Authors: Lin Z, Zhao D, Wang Y, Zhao W, Yin X, Zhou X, Zhang Z, Yang L
Abstract
Prion diseases are known as neurodegenerative diseases of the central nervous system with a long incubation period. Alzheimer's disease (AD) and prion diseases share the hallmark of severe neuronal loss, although their pathogenic mechanisms are similarly incomplete. It appears that these two neurodegenerative diseases share a complex deterioration of function involved in the onset of neuronal loss. To investigate presymptomatic biochemical changes indicative of the initial stage of prion diseases and decipher the pathophysiological mechanisms of these two neurodegenerative diseases, we performed a differential proteomic analysis on brain tissues of 263K-infected hamsters during the presymptomatic period and transgenic APPSWE, PSEN1dE9 mice (a mouse model of AD). We identified 7 differentially expressed proteins including the β-soluble N-ethylmaleimide-sensitive factor attachment protein (β-SNAP) by 2-dimensional gel electrophoresis and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. The β-SNAP expression patterns in the brains of cases and controls were further quantified by Western blotting. β-SNAP showed an early decrease followed by a progressive...

Source: Neuro-Degenerative Diseases - May 22, 2015 Category: Neurology Authors: Lin Z, Zhao D, Wang Y, Zhao W, Yin X, Zhou X, Zhang Z, Yang L Tags: Neurodegener Dis Source Type: research