GIP receptor

Class

GIP receptor agonist

The GIP receptor is a G protein-coupled receptor expressed on pancreatic beta cells, adipose tissue, and neurons in feeding-related brain regions. Its natural ligand, glucose-dependent insulinotropic polypeptide (GIP), is one of the two principal incretin hormones released from the gut after a meal, the other being GLP-1. Incretins amplify insulin release from the pancreas in a glucose-dependent manner, meaning they promote insulin secretion mainly when blood glucose is elevated, which limits the risk of driving glucose too low. In type 2 diabetes, the insulinotropic response to GIP is blunted, prompting interest in GIP receptor agonism as a way to restore this signal. Beyond glucose handling, GIP receptor signaling influences lipid storage and processing in fat tissue and appears to interact with central pathways governing appetite and energy balance. Because its actions overlap with, but are mechanistically distinct from, those of GLP-1, GIP receptor agonists are frequently developed as part of dual-agonist molecules that engage both receptor systems, aiming for metabolic effects on glucose control and body weight that exceed what modulating either pathway alone achieves. This mechanism is broadly relevant to type 2 diabetes and obesity.