Novel insights into the function of β-cell M3 muscarinic acetylcholine receptors: therapeutic implications

IR de Azua, D Gautam, JM Guettier, J Wess - Trends in endocrinology & …, 2011 - cell.com
IR de Azua, D Gautam, JM Guettier, J Wess
Trends in endocrinology & metabolism, 2011cell.com
Impaired function of pancreatic β-cells is one of the hallmarks of type 2 diabetes. β-cell
function is regulated by the activity of many hormones and neurotransmitters, which bind to
specific cell surface receptors. The M 3 muscarinic acetylcholine receptor (M3R) belongs to
the superfamily of G protein-coupled receptors and, following ligand dependent activation,
selectively activates G proteins of the G q/11 family. Recent studies with M3R mutant mice
strongly suggest that β-cell M3Rs play a central role in promoting insulin release and …
Impaired function of pancreatic β-cells is one of the hallmarks of type 2 diabetes. β-cell function is regulated by the activity of many hormones and neurotransmitters, which bind to specific cell surface receptors. The M3 muscarinic acetylcholine receptor (M3R) belongs to the superfamily of G protein-coupled receptors and, following ligand dependent activation, selectively activates G proteins of the Gq/11 family. Recent studies with M3R mutant mice strongly suggest that β-cell M3Rs play a central role in promoting insulin release and maintaining correct glucose homeostasis. In this review, we highlight recent studies indicating that β-cell M3Rs and components of downstream signaling pathways might represent promising new targets for the treatment of type 2 diabetes.
cell.com