Protein disregulation in red blood cell membranes of type 2 diabetic patients - PubMed (original) (raw)
Protein disregulation in red blood cell membranes of type 2 diabetic patients
Ming Jiang et al. Biochem Biophys Res Commun. 2003.
Abstract
The proteomics analysis was used to search for the membrane proteins related to the type 2 diabetes in human red blood cell (RBC). To improve the solubilization and separation for membrane proteins during two-dimensional electrophoresis (2-DE), several types of chaotropes and surfactants were tested. The optimized condition was then screened. About 1000 protein spots from RBC membranes can be resolved on the 2-D gel. To compare the 2-DE patterns between RBC membranes of type 2 diabetic patients and healthy controls, a total of 42 proteins that were differentially expressed were found. The analysis shows that flotillin-1, a recently discovered membrane protein of RBC lipid rafts, appears to be affected in the disease. The result would be quite interesting because flotillin-1 in adipocytes functions is related to stimulate activation of glucose transporter 4 in response to insulin. Additionally, syntaxin 1C and arginase were also disregulated in patient RBC membranes.
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