Protein profiling of pancreatic islets

Authors: Ortsäter, Henrik; Bergsten, Peter

Source: Expert Review of Proteomics, Volume 3, Number 6, December 2006 , pp. 665-675(11)

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Abstract:

The insulin-producing β cell in the islet of Langerhans is central in glucose homeostasis. Its dysfunction is part of the pathogenesis of both Type 1 and 2 diabetes mellitus. In both forms of the disease, there is a cytotoxic component either induced by cytokines, as in Type 1 diabetes, or by elevated levels of glucose and fatty acids, as in Type 2 diabetes. To find the mechanisms responsible for the cytotoxic effects of these compounds proteomic approaches with 2D gel electrophoresis and surface-enhanced laser desorption/ionization time-of-flight mass spectrometry have been undertaken. In this article, we describe these methods, and other methodological aspects of protein profiling of pancreatic islets, and summarize the results obtained with these methods.

Keywords: 2D gel electrophoresis; diabetes mellitus; endoplasmic reticulum stress; insulin; islets of Langerhans; pancreatic β-cells; protein maps; protein profiling; surface-enhanced laser desorption/ionization time-of-flight mass spectrometry

Document Type: Research article

DOI: http://dx.doi.org/10.1586/14789450.3.6.665

Publication date: 2006-12-01

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Expert Review of Proteomics explores technologies, methods and discoveries from the field of proteomics to advance scientific understanding of the many varied roles protein expression plays in human health and disease.
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