PMID- 32190663 OWN - NLM STAT- MEDLINE DCOM- 20201221 LR - 20210625 IS - 2314-6141 (Electronic) IS - 2314-6133 (Print) VI - 2020 DP - 2020 TI - Tumor Necrosis Factor Alpha Deficiency Improves Endothelial Function and Cardiovascular Injury in Deoxycorticosterone Acetate/Salt-Hypertensive Mice. PG - 3921074 LID - 10.1155/2020/3921074 [doi] LID - 3921074 AB - It has been shown that the inflammatory cytokine tumor necrosis factor alpha (TNFalpha) plays a role in the development of hypertension and end-stage renal diseases. We hypothesize that TNFalpha contributes to endothelial dysfunction and cardiac and vascular injury in deoxycorticosterone acetate (DOCA)/salt-hypertensive mice. The wild-type or TNFalpha-deficient mice were uninephrectomized and implanted with DOCA pellet treatment for 5 weeks; the mice were given either tap water or 1% NaCl drinking water. DOCA mice developed hypertension (systolic blood pressure (SBP): 167 +/- 5 vs. 110 +/- 4 mmHg in control group, p < 0.05), cardiac and vascular hypertrophy, and the impairment of endothelium-dependent relaxation to acetylcholine (EDR). TNFalpha deficiency improved EDR and lowered cardiac and vascular hypertrophy with a mild reduction in SBP (152 +/- 4 vs. 167 +/- 5 mmHg in DOCA group, p < 0.05) in DOCA mice. The mRNA expressions of the inflammatory cytokines, including TNFalpha, interleukin 1beta (IL1beta), monocyte chemotactic protein 1 (MCP1), and monocyte/macrophage marker F4/80 were significantly increased in the aorta of DOCA-hypertensive mice; TNFalpha deficiency reduced these inflammatory gene expressions. DOCA-hypertensive mice also exhibited an increase in the vascular oxidative fluorescence intensities, the protein expressions of gp91phox and p22phox, and the fibrotic factors transforming growth factor beta and fibronectin. TNFalpha deficiency reduced oxidative stress and fibrotic protein expressions. The DOCA mice also showed a decrease in the protein expression of eNOS associated with increased miR155 expression; TNFalpha deficiency prevented a decrease in eNOS expression and an increase in miR155 expression in DOCA mice. These results support the idea that TNFalpha significantly contributes to vascular inflammation, vascular dysfunction, and injury in hypertension. CI - Copyright (c) 2020 Ruiping Cai et al. FAU - Cai, Ruiping AU - Cai R AD - Department of Physiology, Shenyang Medical College, Shenyang 110034, China. FAU - Hao, Yun AU - Hao Y AD - Department of Physiology, Jinzhou Medical University, Jinzhou 121001, China. FAU - Liu, Yue-Yang AU - Liu YY AD - Department of Physiology, Shenyang Medical College, Shenyang 110034, China. FAU - Huang, Lei AU - Huang L AD - Department of Physiology, Shenyang Medical College, Shenyang 110034, China. FAU - Yao, Yang AU - Yao Y AD - Department of Physiology, Shenyang Medical College, Shenyang 110034, China. FAU - Zhou, Ming-Sheng AU - Zhou MS AUID- ORCID: 0000-0001-9075-345X AD - Department of Physiology, Shenyang Medical College, Shenyang 110034, China. AD - The Open Project of Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China. LA - eng PT - Journal Article DEP - 20200228 PL - United States TA - Biomed Res Int JT - BioMed research international JID - 101600173 RN - 0 (Acetates) RN - 0 (Chemokine CCL2) RN - 0 (Cytochrome b Group) RN - 0 (Interleukin-1beta) RN - 0 (MicroRNAs) RN - 0 (Mirn155 microRNA, mouse) RN - 0 (RNA, Messenger) RN - 0 (Salts) RN - 0 (Tumor Necrosis Factor-alpha) RN - 40GP35YQ49 (Desoxycorticosterone) RN - 451W47IQ8X (Sodium Chloride) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type III) RN - EC 1.14.13.39 (Nos3 protein, mouse) RN - EC 1.6.3.- (Cybb protein, mouse) RN - EC 1.6.3.- (NADPH Oxidase 2) RN - EC 1.6.3.- (NADPH Oxidases) RN - EC 1.6.3.1 (Cyba protein, mouse) SB - IM MH - Acetates MH - Animals MH - Aorta/drug effects/metabolism MH - Blood Pressure/drug effects MH - Cardiovascular Diseases/*physiopathology MH - Chemokine CCL2/metabolism MH - Cytochrome b Group/metabolism MH - Desoxycorticosterone/*adverse effects MH - Endothelium, Vascular/*metabolism/pathology MH - Gene Expression MH - Heart/drug effects MH - Hypertension/*chemically induced/*metabolism/pathology/physiopathology MH - Inflammation MH - Interleukin-1beta/metabolism MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - MicroRNAs/metabolism MH - NADPH Oxidase 2/metabolism MH - NADPH Oxidases/metabolism MH - Nitric Oxide Synthase Type III/genetics/metabolism MH - Oxidative Stress MH - RNA, Messenger/metabolism MH - Salts/*adverse effects MH - Sodium Chloride/metabolism MH - Tumor Necrosis Factor-alpha/*deficiency/*genetics/metabolism PMC - PMC7064859 COIS- All authors declare no conflict of interest. EDAT- 2020/03/20 06:00 MHDA- 2020/12/22 06:00 PMCR- 2020/02/28 CRDT- 2020/03/20 06:00 PHST- 2019/08/01 00:00 [received] PHST- 2019/10/03 00:00 [revised] PHST- 2019/10/14 00:00 [accepted] PHST- 2020/03/20 06:00 [entrez] PHST- 2020/03/20 06:00 [pubmed] PHST- 2020/12/22 06:00 [medline] PHST- 2020/02/28 00:00 [pmc-release] AID - 10.1155/2020/3921074 [doi] PST - epublish SO - Biomed Res Int. 2020 Feb 28;2020:3921074. doi: 10.1155/2020/3921074. eCollection 2020.