§ Glossary · biology

GLP-1

Glucagon-like peptide-1, an incretin hormone that regulates glucose and appetite.

Glucagon-like peptide-1 (GLP-1) is an incretin hormone secreted by intestinal L-cells in response to nutrient ingestion. It binds the GLP-1 receptor on pancreatic β-cells (stimulating glucose-dependent insulin secretion) and on neurons in the hypothalamus and brainstem (slowing gastric emptying and producing satiety). The GLP-1 receptor is the target of a class of research compounds including semaglutide, liraglutide, dulaglutide, and tirzepatide (which adds a GIP receptor arm) and retatrutide (which adds GIP and glucagon receptor arms).

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