Quantitative Proteomic Characterization of Ethanol-Responsive Pathways in Rat Microglial Cells
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- 作者：Harris Bell-Temin ; Ping Zhang ; Dale Chaput ; Michael A. King ; Min You ; Bin Liu ; Stanley M. Stevens ; Jr.
- 刊名：Journal of Proteome Research
- 出版年：2013
- 出版时间：May 3, 2013
- 年：2013
- 卷：12
- 期：5
- 页码：2067-2077
- 全文大小：453K
- 年卷期：v.12,no.5(May 3, 2013)
- ISSN：1535-3907
文摘
Long-term exposure to alcohol can have profound effects on the central nervous system including pathophysiological consequences associated with neuroinflammation. Along with astroglia, microglia play an important role in the neuroinflammatory response. Using a SILAC-labeled rat microglial cell line, an expression profile of 2994 proteins was identified in ethanol-treated microglial cells, where 160 and 69 protein groups were determined to be significantly upregulated and downregulated, respectively. In addition, SILAC-based proteomic analysis of lipopolysaccharide-treated microglial cells was performed in order to generate a reference data set representing a 鈥渃lassical鈥?(M1) macrophage activation response in order to compare to the differential protein expression profile of ethanol-treated microglia. On the basis of this comparison as well as other validation experiments performed in this study, ethanol appears to induce partial activation of microglia that is devoid of conventional markers that indicate an M1 phenotype. This study is the first comprehensive proteomic analysis to assess the impact of acute ethanol exposure on microglial function and will provide a significant foundation that includes novel protein markers for future work aimed to characterize the molecular mechanisms associated with ethanol-induced microglial activation and its role in neurodegeneration.