PMID- 33488923 OWN - NLM STAT- MEDLINE DCOM- 20210903 LR - 20210903 IS - 1942-0994 (Electronic) IS - 1942-0900 (Print) IS - 1942-0994 (Linking) VI - 2020 DP - 2020 TI - NAMPT/SIRT1 Attenuate Ang II-Induced Vascular Remodeling and Vulnerability to Hypertension by Inhibiting the ROS/MAPK Pathway. PG - 1974265 LID - 10.1155/2020/1974265 [doi] LID - 1974265 AB - Hypertension is characterized by endothelial dysfunction, vascular remodeling, and rearrangement of the extracellular matrix. Besides, the pathogenesis of hypertension is closely related to excess generation of reactive oxygen species (ROS). Nicotinamide phosphoribosyltransferase (NAMPT) is a rate-limiting enzyme in nicotinamide adenine dinucleotide (NAD) biosynthesis that influences the activity of NAD-dependent enzymes, such as sirtuins, which possess NAD-dependent protein deacetylase activity and cleave NAD during the deacetylation cycle. Recently, NAMPT has been shown to play a crucial role in various diseases associated with oxidative stress. However, the function and regulation of NAMPT in hypertension have not been extensively explored. In the present study, we identified NAMPT as a crucial regulator of hypertension, because NAMPT expression was significantly downregulated in both patients with hypertension and experimental animals. NAMPT knockout (NAMPT+/-) mice exhibited a significantly higher blood pressure and ROS levels after stimulation with angiotensin II (Ang II) than wild-type mice, and the administration of recombinant human NAMPT (rhNAMPT) reversed this effect. In vivo, overexpression of NAMPT protected against angiotensin II- (Ang II-) induced hypertension by inhibiting ROS production via sirtuin 1 in mouse aortic endothelial cells (MAECs) and mouse aortic vascular smooth muscle cells (MOVAs). In turn, NAMPT alleviated the ROS-induced mitogen-activated protein kinase (MAPK) pathway. In conclusion, NAMPT might be a novel biomarker and a therapeutic target in hypertension. CI - Copyright (c) 2020 Lei Zhou et al. FAU - Zhou, Lei AU - Zhou L AUID- ORCID: 0000-0003-0917-9986 AD - Department of Cardiothoracic Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China. FAU - Zhang, Sheng AU - Zhang S AUID- ORCID: 0000-0002-7859-6487 AD - Department of Cardiology, East Hospital, School of Medicine, Tongji University, 310000, China. FAU - Bolor-Erdene, Enkhbat AU - Bolor-Erdene E AUID- ORCID: 0000-0001-6295-481X AD - Department of Cardiothoracic Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China. FAU - Wang, Lingwei AU - Wang L AUID- ORCID: 0000-0001-8090-3645 AD - Department of Thoracic Surgery, East Hospital, School of Medicine, Tongji University, Shanghai 310000, China. FAU - Tian, Ding AU - Tian D AUID- ORCID: 0000-0002-1104-8101 AD - Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China. FAU - Mei, Yunqing AU - Mei Y AUID- ORCID: 0000-0002-5269-2067 AD - Department of Cardiothoracic Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China. LA - eng PT - Journal Article DEP - 20201230 PL - United States TA - Oxid Med Cell Longev JT - Oxidative medicine and cellular longevity JID - 101479826 RN - 0 (Reactive Oxygen Species) RN - 11128-99-7 (Angiotensin II) RN - EC 2.4.2.12 (Nicotinamide Phosphoribosyltransferase) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) RN - EC 3.5.1.- (Sirtuin 1) SB - IM MH - Angiotensin II/*toxicity MH - Animals MH - Case-Control Studies MH - Female MH - Humans MH - Hypertension/etiology/metabolism/pathology/*prevention & control MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Middle Aged MH - Mitogen-Activated Protein Kinases/*antagonists & inhibitors/genetics/metabolism MH - Myocytes, Smooth Muscle/drug effects/metabolism/pathology MH - Nicotinamide Phosphoribosyltransferase/genetics/*metabolism MH - Oxidative Stress MH - Reactive Oxygen Species/*metabolism MH - Signal Transduction MH - Sirtuin 1/genetics/*metabolism MH - *Vascular Remodeling PMC - PMC7791967 COIS- The authors have no conflicts of interest to declare. EDAT- 2021/01/26 06:00 MHDA- 2021/09/04 06:00 PMCR- 2020/12/30 CRDT- 2021/01/25 05:40 PHST- 2020/07/04 00:00 [received] PHST- 2020/11/24 00:00 [revised] PHST- 2020/12/07 00:00 [accepted] PHST- 2021/01/25 05:40 [entrez] PHST- 2021/01/26 06:00 [pubmed] PHST- 2021/09/04 06:00 [medline] PHST- 2020/12/30 00:00 [pmc-release] AID - 10.1155/2020/1974265 [doi] PST - epublish SO - Oxid Med Cell Longev. 2020 Dec 30;2020:1974265. doi: 10.1155/2020/1974265. eCollection 2020.