GLP-2 (native)
/ Endogenous 33-residue intestinotrophic gut peptide; cleaved from proglucagonALIAS · Glucagon-like peptide-2 · GLP-2 · Native GLP-2(1-33)
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Tier 1 by translational completeness — the native peptide is endogenous and is the founding pharmacology for the approved analog. The native 33-residue GLP-2 peptide itself is not an FDA-approved therapeutic; teduglutide (Gattex / Revestive), the long-acting Gly2-substituted analog, is FDA-approved for short bowel syndrome. The native peptide is widely used in research and as an endogenous biology reference.
GLP-2 is the 33-residue intestinotrophic peptide produced by enteroendocrine L cells through proglucagon processing — the same precursor that produces glucagon (in pancreatic alpha cells) and GLP-1 (in L cells). GLP-2 binds the GLP-2 receptor (GLP-2R), a class B G-protein-coupled receptor expressed on enteric neurons, subepithelial myofibroblasts, and certain enteroendocrine cells, and signals through cAMP. Downstream effects include increased crypt cell proliferation, villus height, intestinal blood flow, and barrier function, and decreased epithelial apoptosis and gastric emptying. Native GLP-2 has a circulating half-life of approximately 7 minutes, limited by DPP-4 cleavage at the N-terminal Ala2; the Gly2 substitution in teduglutide eliminates DPP-4 cleavage and extends half-life to approximately 2 hours.
Tier 1 for the molecular pharmacology and Tier 1 by analog. The original GLP-2 discovery (Drucker and colleagues, PNAS 1996) demonstrated the intestinotrophic activity of recombinant GLP-2 in mouse models, defining the molecule as a candidate therapeutic for short bowel syndrome. Subsequent human pharmacology studies of native GLP-2 infusion have confirmed intestinal effects but the short half-life limits therapeutic application — teduglutide was developed specifically to address this pharmacokinetic limitation. The Drucker (Annual Review of Physiology 2006) review consolidated the GLP-2 biology field.
Native GLP-2 has not been developed as a therapeutic, so a formal safety database does not exist for the native peptide. Class concerns about chronic intestinotrophic action — particularly the theoretical risk of accelerating malignancy growth in tissues with pre-existing dysplasia — apply to the analog teduglutide and feature in its labelling. Native GLP-2 in research contexts has not raised acute safety concerns at studied infusion rates.
Regulatory status
- FDA status:
- Not FDA-approved
The vendor research-chemical 'GLP-2' is the native short-half-life peptide and is not pharmacologically interchangeable with teduglutide (Gattex / Revestive), the FDA-approved analog. Vendor product purity and identity are not regulated to pharmaceutical specification. The therapeutic translation of GLP-2 biology runs through teduglutide and the next-generation longer-acting analog glepaglutide; the native peptide is biological reference, not therapeutic.