GLP-2 (human)

GLP-2(1-33) (human) is an enteroendocrine hormone which can bind to the GLP-2 receptor and stimulate the growth of intestinal epithelium.

GLP-2-treated group demonstrates a 518±22% increase (Pin vitro model of the entire intestine. FRIC cultures have previously been established to express a functional GLP-2 receptor (GLP-2R) that displays a cAMP response, as well as enhances IGF-1 mRNA expression and IGF-1 secretion in response to GLP-2 treatment. When incubates with GLP-2 (10−8 M) for 2 hours, IGFBP-4 mRNA expression in the FRIC cultures is also found to be increased, by 40.8±15.2% (P<0.05), compare with vehicle-treated cells[1].

GLP-2 quickly increases apoB48 mass in the TRL fraction of plasma, which is indicative of chylomicron number, and this is blocked by L-NAME. GLP-2 treatment alone increases postprandial TRL-lipids (slope 3.65±0.73×10−3 g/L/min vs 1.63±0.28×10−3 g/L/min, GLP-2 vs control), and this effect is completely mitigated by L-NAME pretreatment (slope 3.67±0.15×10−4 g/L/min). The GLP-2-induced rise in TRL-apoB48 occurres within 30 minutes and precedes the rise in TRL-TG. GLP-2 acutely increases plasma tritium levels (slope, 1.66±0.25×102 dpm/mL/min vs 1.11±0.17×102 dpm/mL/min, GLP-2 vs control)[2].

References:
[1]. Kaori Austin, et al. IGF Binding Protein-4 is Required for the Growth Effects of Glucagon-Like Peptide-2 in Murine Intestine. Endocrinology. 2015 Feb; 156(2): 429-436.
[2]. Hsieh J, et al. Glucagon-Like Peptide 2 (GLP-2) Stimulates Postprandial Chylomicron Production and Postabsorptive Release of Intestinal Triglyceride Storage Pools via Induction of Nitric Oxide Signaling in Male Hamsters and Mice. Endocrinology. 2015 Oct;156(10):3538-47.