Title : G protein-coupled receptor (GPR)40-dependent potentiation of insulin secretion in mouse islets is mediated by protein kinase D1.

Pub. Date : 2012 Oct

PMID : 22820510






5 Functional Relationships(s)
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1 AIMS/HYPOTHESIS: Activation of the G protein-coupled receptor (GPR)40 by long-chain fatty acids potentiates glucose-stimulated insulin secretion (GSIS) from pancreatic beta cells, and GPR40 agonists are in clinical development for type 2 diabetes therapy. long-chain fatty acids free fatty acid receptor 1 Mus musculus
2 AIMS/HYPOTHESIS: Activation of the G protein-coupled receptor (GPR)40 by long-chain fatty acids potentiates glucose-stimulated insulin secretion (GSIS) from pancreatic beta cells, and GPR40 agonists are in clinical development for type 2 diabetes therapy. Glucose free fatty acid receptor 1 Mus musculus
3 This study aimed to determine the mechanisms of GPR40-dependent potentiation of GSIS by fatty acids. Fatty Acids free fatty acid receptor 1 Mus musculus
4 Exogenous DAG potentiates GSIS in both WT and Gpr40 (-/-) islets. Diglycerides free fatty acid receptor 1 Mus musculus
5 CONCLUSIONS/INTERPRETATION: We conclude that the signalling cascade downstream of GPR40 activation by fatty acids involves activation of PKD1, F-actin depolymerisation and potentiation of second-phase insulin secretion. Fatty Acids free fatty acid receptor 1 Mus musculus