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A proteomic approach to identify proteins involved in Redox regulation of inflammation and immunity

To better understand the role of redox regulation in immunity, we studied the glutathionylation of proteins secreted in response to inflammatory stimuli such as lipopolysaccharide (LPS). These proteins were detected by cell labeling with biotinylated glutathione ethyl ester (BioGEE) and identified by one‐dimensional gel electrophoresis, subjected to tryptic digestion followed by mass spectrometry analysis. Several proteins were identified in supernatants from Raw 264.7 cells (murine macrophages) stimulated with 100 ng/ml LPS for 24 hours.