Open AccessAcute administration of interleukin‐6 does not increase secretion of glucagon‐like peptide‐1 in mice
Author(s) -
Christiansen Charlotte B.,
Lind Sara J.,
Svendsen Berit,
BalkMøller Emilie,
Dahlby Tina,
Kuhre Rune E.,
Hartmann Bolette,
MandrupPoulsen Thomas,
Deacon Carolyn F.,
Wewer Albrechtsen Nicolai J.,
Holst Jens J.
Publication year - 2018
Publication title -
physiological reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.918
H-Index - 39
ISSN - 2051-817X
DOI - 10.14814/phy2.13788
Subject(s) - medicine , endocrinology , secretion , glucagon like peptide 1 , glucagon , enteroendocrine cell , insulin , incretin , chemistry , proglucagon , bombesin , biology , hormone , diabetes mellitus , type 2 diabetes , receptor , neuropeptide , endocrine system
Interleukin 6 ( IL ‐6) is a cytokine secreted from skeletal muscle in response to exercise which, based on animal and cell studies, has been suggested to contribute to glucose metabolism by increasing secretion of the incretin hormone glucagon‐like peptide‐1 ( GLP ‐1) and affecting secretion of insulin and glucagon from the pancreatic islets. We investigated the effect of IL ‐6 on GLP ‐1 secretion in GLP ‐1 producing cells ( GLUT ag) and using the perfused mouse small intestine (harboring GLP ‐1 producing cells). Furthermore, the direct effect of IL ‐6 on insulin and glucagon secretion was studied using isolated perfused mouse pancreas. Incubating GLUT ag cells with 1000 ng/ mL of IL ‐6 for 2 h did not significantly increase secretion of GLP ‐1 whereas 10 mmol/L glucose (positive control) did. Similarly, IL ‐6 (100 ng/ mL ) had no effect on GLP ‐1 secretion from perfused mouse small intestine whereas bombesin (positive control) increased secretion. Finally, administering IL ‐6 (100 ng/ mL ) to perfused mouse pancreases did not significantly increase insulin or glucagon secretion regardless of perfusate glucose levels (3.5 vs. 12 mmol/L glucose). Acute effects of IL ‐6 therefore do not seem to include a stimulatory effect on GLP ‐1 secretion in mice.