Open AccessCarbohydrate‐induced secretion of glucose‐dependent insulinotropic polypeptide and glucagon‐like peptide‐1
Author(s) -
Seino Yusuke,
Maekawa Ryuya,
Ogata Hidetada,
Hayashi Yoshitaka
Publication year - 2016
Publication title -
journal of diabetes investigation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.089
H-Index - 50
eISSN - 2040-1124
pISSN - 2040-1116
DOI - 10.1111/jdi.12449
Subject(s) - medicine , glucagon like peptide 1 , secretion , glucagon , diabetes mellitus , endocrinology , carbohydrate , peptide , carbohydrate metabolism , biochemistry , insulin , type 2 diabetes , biology
Glucose‐dependent insulinotropic polypeptide (GIP) and glucagon‐like peptide‐1 (GLP‐1) are the incretin hormones secreted from enteroendocrine K‐cells and L‐cells, respectively, by oral ingestion of various nutrients including glucose. K‐cells, L‐cells and pancreatic β‐cells are glucose‐responsive cells with similar glucose‐sensing machinery including glucokinase and an adenosine triphosphate‐sensitive K + channel comprising KIR6.2 and sulfonylurea receptor 1. However, the physiological role of the adenosine triphosphate‐sensitive K + channel in GIP secretion in K‐cells and GLP‐1 secretion in L‐cells is not elucidated. Recently, it was reported that GIP and GLP‐1‐producing cells are present also in pancreatic islets, and islet‐derived GIP and GLP‐1 contribute to glucose‐induced insulin secretion from pancreatic β‐cells. In this short review, we focus on GIP and GLP‐1 secretion by monosaccharides, such as glucose or fructose, and the role of the adenosine triphosphate‐sensitive K + channel in GIP and GLP‐1 secretion.