PMID- 32525822 OWN - NLM STAT- MEDLINE DCOM- 20200911 LR - 20211204 IS - 0231-5882 (Print) IS - 0231-5882 (Linking) VI - 39 IP - 3 DP - 2020 May TI - Angiopoietin-like protein 7 mediates TNF-alpha-induced adhesion and oxidative stress in human umbilical vein epithelial cell. PG - 285-292 LID - 10.4149/gpb_2019062 [doi] AB - Tumor necrosis factor-alpha (TNF-alpha) promotes monocyte adhesion to endothelium and accumulation of endothelium will lead to atherosclerosis. The present study explored Angiopoietin-like protein (Angptl7) as a potential target in the process of atherosclerosis, and its role in the adhesion and oxidative stress induced by TNF-alpha in human umbilical vein epithelial cells (HUVEC). The initiation of atherosclerosis is endothelial injury. Angptl7 was dramatically increased in TNF-alpha-induced HUVEC compared to the control cells. After Angptl7 effectively knocked-down in TNF-alpha-induced HUVEC, the levels of reactive oxygen species (ROS), interleukin (IL)-1beta, IL-6 and cyclooxygenase-2 (Cox-2) were prominently decreased, whereas the levels of nitric oxide (NO) and endothelia nitric oxide synthase (eNOS) were increased. Inhibition of Angptl7 significantly reversed TNF-alpha-induced cell adhesion in HUVEC. Finally, downregulation of Angptl7 significantly reduced the expression of nuclear factor-kappaB (NF-kappaB) and enhanced the levels of nuclear factor erythroid 2-related factor 2 (Nrf-2) and heme oxygenase-1 (HO-1) in TNF-alpha-treated HUVEC. Angptl7 conducted TNF-alpha-induced oxidative stress and cell adhesion in HUVEC. Therefore, Angptl7 might participate in the development of endothelial injury and further atherosclerosis. This might give us a new insight for investigation of procession of atherosclerosis. FAU - Li, Jiong AU - Li J AD - Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China. FAU - Liang, Tianxiang AU - Liang T FAU - Wang, Yanzheng AU - Wang Y FAU - Gan, Yirong AU - Gan Y FAU - Kou, Zongke AU - Kou Z FAU - Zhang, Yunlong AU - Zhang Y FAU - Mao, Rui AU - Mao R FAU - Xie, Dingxiong AU - Xie D LA - eng PT - Journal Article PL - Slovakia TA - Gen Physiol Biophys JT - General physiology and biophysics JID - 8400604 RN - 0 (ANGPTL7 protein, human) RN - 0 (Angiopoietin-Like Protein 7) RN - 0 (Angiopoietin-like Proteins) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Angiopoietin-Like Protein 7 MH - Angiopoietin-like Proteins/*genetics MH - *Cell Adhesion MH - Cells, Cultured MH - Human Umbilical Vein Endothelial Cells/*cytology MH - Humans MH - *Oxidative Stress MH - Tumor Necrosis Factor-alpha/pharmacology EDAT- 2020/06/12 06:00 MHDA- 2020/09/12 06:00 CRDT- 2020/06/12 06:00 PHST- 2019/08/05 00:00 [received] PHST- 2019/12/15 00:00 [accepted] PHST- 2020/06/12 06:00 [entrez] PHST- 2020/06/12 06:00 [pubmed] PHST- 2020/09/12 06:00 [medline] AID - 10.4149/gpb_2019062 [doi] PST - ppublish SO - Gen Physiol Biophys. 2020 May;39(3):285-292. doi: 10.4149/gpb_2019062.