PMID- 31927051 OWN - NLM STAT- MEDLINE DCOM- 20200615 LR - 20200615 IS - 1879-0631 (Electronic) IS - 0024-3205 (Linking) VI - 253 DP - 2020 Jul 15 TI - Nifedipine inhibits oxidative stress and ameliorates osteoarthritis by activating the nuclear factor erythroid-2-related factor 2 pathway. PG - 117292 LID - S0024-3205(20)30039-4 [pii] LID - 10.1016/j.lfs.2020.117292 [doi] AB - Nifedipine is a voltage-gated calcium channel inhibitor widely used in the treatment of hypertension. Nifedipine has been reported to have antioxidant and anti-apoptotic effects and promotes cell proliferation. However, the effects of nifedipine on oxidative stress and apoptosis in osteoarthritic (OA) chondrocytes are still unclear. In this study, we sought to investigate whether nifedipine alleviates oxidative stress and apoptosis in OA through nuclear factor erythroid-2-related factor 2 (Nrf2) activation. The cytotoxicity of nifedipine against human chondrocytes was detected using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) kit, whereas mRNA and protein expression levels were measured using reverse transcription-polymerase chain reaction (RT-PCR) and Western blotting, respectively. The oxidative stress level was analyzed by measuring reactive oxygen species (ROS), glutathione peroxidase (GSH-px), catalase (CAT) and superoxide dismutase (SOD) activities. The role of Nrf2 in the effect of nifedipine on OA was analyzed using an Nrf2 inhibitor brusatol (BR). The result showed that nifedipine inhibited the expression of matrix metalloprotein(MMP)-13, interleukin (IL)-1beta, IL-6, tumor necrosis factor (TNF)-alpha, cyclooxygenase (COX)-2, inducible nitric oxide (NO) synthase (iNOS), and prostaglandin E2 (PGE2), as well as reduced ROS production in human OA chondrocytes, which was partially reversed by BR. Nifedipine prevented cartilage degeneration and contributed to the expression of Nrf-2 in chondrocytes. These results indicate that nifedipine inhibited inflammation and oxidative stress in chondrocytes via activation of Nrf-2/HO-1 signaling. CI - Copyright (c) 2020 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Yao, Jun AU - Yao J AD - Department of Bone and Joint Surgery, The First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, China; Guangxi Collaborative Innovation Center for Biomedicine, The First Affiliated Hospital of Guangxi Medical University, 530021, Nanning, China; The First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, China. FAU - Long, Huiping AU - Long H AD - The First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, China. FAU - Zhao, Jianping AU - Zhao J AD - Department of Bone and Joint Surgery, The First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, China; The First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, China. FAU - Zhong, Gang AU - Zhong G AD - Department of Bone and Joint Surgery, The First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, China; Guangxi Collaborative Innovation Center for Biomedicine, The First Affiliated Hospital of Guangxi Medical University, 530021, Nanning, China; The First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, China. Electronic address: 13257788667@163.com. FAU - Li, Jia AU - Li J AD - The First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, China; Department of Pathology, First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, China. Electronic address: jialee2005@126.com. LA - eng PT - Journal Article DEP - 20200109 PL - Netherlands TA - Life Sci JT - Life sciences JID - 0375521 RN - 0 (Calcium Channel Blockers) RN - 0 (Interleukins) RN - 0 (Metalloproteins) RN - 0 (NF-E2-Related Factor 2) RN - 0 (Quassins) RN - 0 (Reactive Oxygen Species) RN - 0 (Tumor Necrosis Factor-alpha) RN - 14907-98-3 (brusatol) RN - EC 1.11.1.6 (Catalase) RN - EC 1.11.1.9 (Glutathione Peroxidase) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 1.14.99.1 (Cyclooxygenase 2) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - I9ZF7L6G2L (Nifedipine) RN - K7Q1JQR04M (Dinoprostone) SB - IM MH - Aged MH - Apoptosis MH - Calcium Channel Blockers/*metabolism/pharmacology MH - Catalase/metabolism MH - Chondrocytes/cytology/metabolism MH - Cyclooxygenase 2/metabolism MH - Dinoprostone/metabolism MH - Female MH - Gene Expression Regulation MH - Glutathione Peroxidase/metabolism MH - Humans MH - Interleukins/metabolism MH - Male MH - Metalloproteins/metabolism MH - Middle Aged MH - NF-E2-Related Factor 2/*metabolism MH - Nifedipine/antagonists & inhibitors/*metabolism/pharmacology MH - Nitric Oxide Synthase Type II/metabolism MH - Osteoarthritis/*drug therapy MH - Oxidative Stress/*drug effects MH - Quassins/chemistry/metabolism MH - Reactive Oxygen Species/metabolism MH - Signal Transduction MH - Superoxide Dismutase/metabolism MH - Tumor Necrosis Factor-alpha/metabolism OTO - NOTNLM OT - Inflammation OT - Nifedipine OT - Nrf2/HO-1 pathway OT - Osteoarthritis OT - Oxidative stress COIS- Conflicts of interest We declare that we have no conflict of interest. EDAT- 2020/01/14 06:00 MHDA- 2020/06/17 06:00 CRDT- 2020/01/14 06:00 PHST- 2019/10/13 00:00 [received] PHST- 2019/12/23 00:00 [revised] PHST- 2020/01/07 00:00 [accepted] PHST- 2020/01/14 06:00 [pubmed] PHST- 2020/06/17 06:00 [medline] PHST- 2020/01/14 06:00 [entrez] AID - S0024-3205(20)30039-4 [pii] AID - 10.1016/j.lfs.2020.117292 [doi] PST - ppublish SO - Life Sci. 2020 Jul 15;253:117292. doi: 10.1016/j.lfs.2020.117292. Epub 2020 Jan 9.