Glucagon-like Peptide 1 Receptor Signaling in Acinar Cells Causes Growth-Dependent Release of Pancreatic Enzymes

Nicolai J Wewer Albrechtsen, Reidar Albrechtsen, Lasse Bremholm, Berit Svendsen, Rune E Kuhre, Steen S Poulsen, Charlotte B Christiansen, Elisa P Jensen, Charlotte Janus, Linda Hilsted, Carolyn F Deacon, Bolette Hartmann, Jens J Holst*

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftArtikelForskningpeer review

Abstract

Incretin-based therapies are widely used for type 2 diabetes and now also for obesity, but they are associated with elevated plasma levels of pancreatic enzymes and perhaps a modestly increased risk of acute pancreatitis. However, little is known about the effects of the incretin hormone glucagon-like peptide 1 (GLP-1) on the exocrine pancreas. Here, we identify GLP-1 receptors on pancreatic acini and analyze the impact of receptor activation in humans, rodents, isolated acini, and cell lines from the exocrine pancreas. GLP-1 did not directly stimulate amylase or lipase release. However, we saw that GLP-1 induces phosphorylation of the epidermal growth factor receptor and activation of Foxo1, resulting in cell growth with concomitant enzyme release. Our work uncovers GLP-1-induced signaling pathways in the exocrine pancreas and suggests that increases in amylase and lipase levels in subjects treated with GLP-1 receptor agonists reflect adaptive growth rather than early-stage pancreatitis.

OriginalsprogEngelsk
Sider (fra-til)2845-2856
Antal sider12
TidsskriftCell Reports
Vol/bind17
Udgave nummer11
DOI
StatusUdgivet - 13 dec. 2016

Bibliografisk note

Copyright © 2016 The Author(s). Published by Elsevier Inc. All rights reserved.

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