Figure 1. GLP-2 (1-34)-induced concentration-dependent stimulation of intracellular calcium mobilization in CHO-K1/GLP2/Gα15 cells. The cells were loaded with Calcium-4 prior to being stimulated with agonist, GLP-2 (1-34). The intracellular calcium change was measured by FLIPR. The relative fluorescent units (RFU) were normalized and plotted against the log of the cumulative doses of GLP-2 (1-34) (Mean ± SD, n = 2). The EC50 of GLP-2 (1-34) on this cell was 0.11 μM.
Notes:
1. EC50 value is calculated with four parameter logistic equation:
Y=Bottom + (Top-Bottom)/ (1+10^ ((LogEC50-X)*HillSlope))
X is the logarithm of concentration. Y is the response
Y is RFU and starts at Bottom and goes to Top with a sigmoid shape.
CHO-K1/GLP2R/Gα15 Stable Cell Line
The glucagon-like peptides include glucagon, GLP-1, and GLP-2 exert diverse actions on nutrient intake, gastrointestinal motility, islet hormone secretion, cell proliferation and apoptosis, as well as nutrient absorptionand assimilation. Glucagon-like peptide (GLP)-2, a product of the proglucagon gene, is expressed in enteroendocrine cells of the small and large intestine and is trophic to the gastrointestinal mucosa. GLP-2 also inhibits gastric acid secretion and emptying and up-regulates intestinal hexose transport. GLP-2 acts via binding to a single G protein-coupled GLP-2 receptor (GLP-2R).
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