The Molecular Genetics of Sulfonylurea Receptors in the Pathogenesis and Treatment of Insulin Secretory Disorders and Type 2 Diabetes
Genetics (Jose C. Florez, Section Editor)
First Online: 04 October 2011 DOI:
10.1007/s11892-011-0233-8 Cite this article as: Lang, V., Youssef, N. & Light, P.E. Curr Diab Rep (2011) 11: 543. doi:10.1007/s11892-011-0233-8 Abstract
Sulfonylurea receptors (SURs) form an integral part of the ATP-sensitive potassium (K
ATP) channel complex that is present in most excitable cell types. K ATP channels couple cellular metabolism to electrical activity and provide a wide range of cellular functions including stimulus secretion coupling in pancreatic β cells. K ATP channels are composed of SURs and inward rectifier potassium channel (Kir6.x) subunits encoded by the ABCC8/9 and KCNJ8/11 genes, respectively. Recent advances in the genetics, molecular biology, and pharmacology of SURs have led to an increased understanding of these channels in the etiology and treatment of rare genetic insulin secretory disorders. Furthermore, common genetic variants in these genes are associated with an increased risk for type 2 diabetes. In this review we summarize the molecular biology, pharmacology, and physiology of SURs and K ATP channels, highlighting recent advances in their genetics and understanding of rare insulin secretory disorders and susceptibility to type 2 diabetes. Keywords Sulfonylurea receptor K ATP channel Pharmacology Monogenic mutations Genetic variants Insulin secretory disorder Type 2 diabetes References Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance
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