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Detection of differential proteomes of human beta-cells during islet-like differentiation using iTRAQ labeling
Jonghwa Jin1, Jungeun Park, Kyunggon Kim
1Departments of Biomedical Sciences and Internal Medicine, Genome Research Center for Diabetes and Endocrine Disease, Seoul National University College of Medicine, 28 Yongon-Dong, Seoul 110-799, Korea.
Abstract:
A human beta-cell line, RNAKT-15, was recently established from human pancreatic islets, whereby its differentiation into islet-like beta-cells (islet-like RNAKT-15) increased its expression of insulin 2-fold compared with RNAKT-15 cells. To characterize the differentiation of RNAKT-15 cells into islet-like RNAKT-15, microarray and quantitative proteomics were performed. Our analysis of differential proteomic and mRNA expression has resulted in a greater understanding of the molecular functions that are involved in beta-cell differentiation and insulin synthesis and release.
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