PMID- 26215259 OWN - NLM STAT- MEDLINE DCOM- 20160321 LR - 20220222 IS - 1759-5037 (Electronic) IS - 1759-5029 (Linking) VI - 11 IP - 9 DP - 2015 Sep TI - Physiological and pathophysiological roles of NAMPT and NAD metabolism. PG - 535-46 LID - 10.1038/nrendo.2015.117 [doi] AB - Nicotinamide phosphoribosyltransferase (NAMPT) is a regulator of the intracellular nicotinamide adenine dinucleotide (NAD) pool. NAD is an essential coenzyme involved in cellular redox reactions and is a substrate for NAD-dependent enzymes. In various metabolic disorders and during ageing, levels of NAD are decreased. Through its NAD-biosynthetic activity, NAMPT influences the activity of NAD-dependent enzymes, thereby regulating cellular metabolism. In addition to its enzymatic function, extracellular NAMPT (eNAMPT) has cytokine-like activity. Abnormal levels of eNAMPT are associated with various metabolic disorders. NAMPT is able to modulate processes involved in the pathogenesis of obesity and related disorders such as nonalcoholic fatty liver disease (NAFLD) and type 2 diabetes mellitus (T2DM) by influencing the oxidative stress response, apoptosis, lipid and glucose metabolism, inflammation and insulin resistance. NAMPT also has a crucial role in cancer cell metabolism, is often overexpressed in tumour tissues and is an experimental target for antitumour therapies. In this Review, we discuss current understanding of the functions of NAMPT and highlight progress made in identifying the physiological role of NAMPT and its relevance in various human diseases and conditions, such as obesity, NAFLD, T2DM, cancer and ageing. FAU - Garten, Antje AU - Garten A AD - Center for Pediatric Research Leipzig, Hospital for Children and Adolescents, University of Leipzig, Liebigstrasse 21, 04103 Leipzig, Germany. FAU - Schuster, Susanne AU - Schuster S AD - Center for Pediatric Research Leipzig, Hospital for Children and Adolescents, University of Leipzig, Liebigstrasse 21, 04103 Leipzig, Germany. FAU - Penke, Melanie AU - Penke M AD - Center for Pediatric Research Leipzig, Hospital for Children and Adolescents, University of Leipzig, Liebigstrasse 21, 04103 Leipzig, Germany. FAU - Gorski, Theresa AU - Gorski T AD - Center for Pediatric Research Leipzig, Hospital for Children and Adolescents, University of Leipzig, Liebigstrasse 21, 04103 Leipzig, Germany. FAU - de Giorgis, Tommaso AU - de Giorgis T AD - Center for Pediatric Research Leipzig, Hospital for Children and Adolescents, University of Leipzig, Liebigstrasse 21, 04103 Leipzig, Germany. FAU - Kiess, Wieland AU - Kiess W AD - Center for Pediatric Research Leipzig, Hospital for Children and Adolescents, University of Leipzig, Liebigstrasse 21, 04103 Leipzig, Germany. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20150728 PL - England TA - Nat Rev Endocrinol JT - Nature reviews. Endocrinology JID - 101500078 RN - 0 (Cytokines) RN - 0U46U6E8UK (NAD) RN - EC 2.4.2.12 (Nicotinamide Phosphoribosyltransferase) RN - EC 2.4.2.12 (nicotinamide phosphoribosyltransferase, human) SB - IM MH - Animals MH - Cytokines/*genetics/*physiology MH - Diabetes Mellitus, Type 2/metabolism MH - Humans MH - NAD/*metabolism MH - Nicotinamide Phosphoribosyltransferase/*genetics/*physiology MH - Obesity/enzymology/genetics EDAT- 2015/07/29 06:00 MHDA- 2016/03/22 06:00 CRDT- 2015/07/29 06:00 PHST- 2015/07/29 06:00 [entrez] PHST- 2015/07/29 06:00 [pubmed] PHST- 2016/03/22 06:00 [medline] AID - nrendo.2015.117 [pii] AID - 10.1038/nrendo.2015.117 [doi] PST - ppublish SO - Nat Rev Endocrinol. 2015 Sep;11(9):535-46. doi: 10.1038/nrendo.2015.117. Epub 2015 Jul 28.