|This GLP-2 analogue (peptide 10 in ) was designed to increase the peptide's metabolic stability (and in vivo pharmacokinetic profile) beyond that of the clinically approved DPP4 resistant GLP-2 analogue teduglutide, with the aim of providing sustained therapeutic effects. GLP-2 analogue 10 achieves increased half-life by the incorporation of a covalent Cys-mediated side-chain cross-link (or staple) that stabilises the α-helical conformation of the peptide. The terminal PSSGAPPPS sequence of 10 is the C-terminal extension of exendin-4 which improves the peptide's solubility.
The intestinotrophic effects of GLP-2 (e.g. promotion of intestinal growth, reduced epithelial cell apoptosis and inflammation) has led to the development of GLP-2 analogues for the treatment of GI disorders such as short bowel syndrome, inflammatory bowel diseases and potentially other intestinal insufficiency diseases.