Bioactivity of human pancreastatin and its localization in pancreas

Add time:09/01/2019    Source:sciencedirect.com

Synthetic human pancreastatin (1–52) and its C-terminal fragment (24–52) were first evaluated with respect to the biological activity on the insulin secretion in the isolated rat islets. Both these pancreastatins inhibited glucose-stimulated insulin secretion at a concentration of 100 nM. The relative molar potency of human pancreastatin compared to that of porcine pancreastatin was equivalent. The pancreastatin-reactive cells were widely located in the islets of Langerhans, and not observed in exocrine acinar cells by immunocytochemistry using human pancreastatin C-terminal specific antibody. These results suggest that human pancreastatin may modulate endocrine function of the pancreas, especially insulin secretion.

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