PMID- 29412815 OWN - NLM STAT- MEDLINE DCOM- 20181211 LR - 20220318 IS - 1873-5169 (Electronic) IS - 0196-9781 (Linking) VI - 100 DP - 2018 Feb TI - Dipeptidyl peptidase inhibitor therapy in type 2 diabetes: Control of the incretin axis and regulation of postprandial glucose and lipid metabolism. PG - 158-164 LID - S0196-9781(17)30369-8 [pii] LID - 10.1016/j.peptides.2017.11.023 [doi] AB - Dipeptidyl peptidase 4 (DPP4) is a widely expressed, serine protease which regulates the bioactivity of many peptides through cleavage and inactivation including the incretin hormones, glucagon like peptide -1 (GLP-1) and glucose dependent insulinotropic polypeptide (GIP). Inhibitors of DPP4 are used therapeutically to treat patients with Type 2 Diabetes Mellitus (T2DM) as they potentiate incretin action to regulate islet hormone secretion and improve glycemia and post-prandial lipid excursions. The widespread clinical use of DPP4 inhibitors has increased interest in the molecular mechanisms by which these drugs mediate their beneficial effects. Traditionally, focus has remained on inhibiting the catalytic activity of DPP4 within the plasma compartment, however evidence is emerging on the importance of inactivation of membrane-bound DPP4 in selective tissue beds to potentiate local hormone gradients. Here we review the recent advances in identifying the cellular sources of both circulating and membrane-bound DPP4 important for cleavage of the incretin hormones and regulation of glucose and lipoprotein metabolism. CI - Crown Copyright (c) 2017. Published by Elsevier Inc. All rights reserved. FAU - Mulvihill, Erin E AU - Mulvihill EE AD - University of Ottawa Heart Institute, University of Ottawa, Department of Biochemistry, Microbiology and Immunology, 40 Ruskin Street, Ottawa, ON, K1Y4W7, Canada. Electronic address: emulvihi@uottawa.ca. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - United States TA - Peptides JT - Peptides JID - 8008690 RN - 0 (Blood Glucose) RN - 0 (Dipeptidyl-Peptidase IV Inhibitors) RN - 0 (Incretins) RN - EC 3.4.14.5 (DPP4 protein, human) RN - EC 3.4.14.5 (Dipeptidyl Peptidase 4) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Blood Glucose/drug effects MH - Diabetes Mellitus, Type 2/*drug therapy/genetics/pathology MH - Dipeptidyl Peptidase 4/genetics/*metabolism MH - Dipeptidyl-Peptidase IV Inhibitors/*therapeutic use MH - Glucose/metabolism MH - Humans MH - Incretins/metabolism MH - Lipid Metabolism/*drug effects MH - Postprandial Period OTO - NOTNLM OT - Dipeptidyl peptidase 4 OT - Dyslipidemia OT - Glucagon like peptide 1 OT - Glucose dependent insulinotropic polypeptide OT - Incretins OT - Soluble DPP4 OT - Type 2 diabetes EDAT- 2018/02/08 06:00 MHDA- 2018/12/12 06:00 CRDT- 2018/02/08 06:00 PHST- 2017/10/03 00:00 [received] PHST- 2017/11/30 00:00 [revised] PHST- 2017/11/30 00:00 [accepted] PHST- 2018/02/08 06:00 [entrez] PHST- 2018/02/08 06:00 [pubmed] PHST- 2018/12/12 06:00 [medline] AID - S0196-9781(17)30369-8 [pii] AID - 10.1016/j.peptides.2017.11.023 [doi] PST - ppublish SO - Peptides. 2018 Feb;100:158-164. doi: 10.1016/j.peptides.2017.11.023.