PMID- 33062145 OWN - NLM STAT- MEDLINE DCOM- 20210512 LR - 20210512 IS - 1942-0994 (Electronic) IS - 1942-0900 (Print) IS - 1942-0994 (Linking) VI - 2020 DP - 2020 TI - Oleanolic Acid Decreases IL-1beta-Induced Activation of Fibroblast-Like Synoviocytes via the SIRT3-NF-kappaB Axis in Osteoarthritis. PG - 7517219 LID - 10.1155/2020/7517219 [doi] LID - 7517219 AB - Synovial inflammation is a major pathological feature of osteoarthritis (OA), which is a chronic degenerative joint disease. Fibroblast-like synoviocytes (FLS), localized in the synovial membrane, are specialized secretory cells. During OA synovitis, FLS produce chemokines and cytokines that stimulate chondrocytes to secrete inflammatory cytokines and activate matrix metalloproteinases (MMPs) in FLS. Recent studies have demonstrated that sirtuin 3 (SIRT3) performs as a key regulator in maintaining mitochondrial homeostasis in OA. This study aims at ascertaining whether SIRT3 is involved in OA synovitis. The overexpression (OE) and knockdown (KD) of SIRT3 are established by short hairpin RNA (shRNA) and recombinant plasmid in human FLS. The anti-inflammatory effect of SIRT3 underlying in oleanolic acid- (OLA-) prevented interleukin-1beta- (IL-1beta-) induced FLS dysfunction is then evaluated in vitro. Additionally, the molecular mechanisms of SIRT3 are assessed, and the interaction between SIRT3 and NF-kappaB is investigated. The data suggested that SIRT3 can be detected in human synovial tissues during OA, and OLA could elevate SIRT3 expression. OE-SIRT3 and OLA exhibited equal authenticity to repress inflammation and reverse oxidative stress changes in IL-1beta-induced human FLS dysfunction. KD-SIRT3 was found to exacerbate inflammation and oxidative stress changes in human FLS. Furthermore, it was found that SIRT3 could directly bind with NF-kappaB, resulting in the suppression of NF-kappaB activation induced by IL-1beta in human FLS, which then repressed synovial inflammation in OA. In general, the activation of SIRT3 by OLA inhibited synovial inflammation by suppressing the NF-kappaB signal pathway in FLS, and this suggested that SIRT3 is a potential target for OA synovitis therapy. CI - Copyright (c) 2020 Jiapeng Bao et al. FAU - Bao, Jiapeng AU - Bao J AD - Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. FAU - Yan, Weifeng AU - Yan W AD - Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. AD - Department of Orthopedics, China Coast Guard Hospital of the People's Armed Police Force, Jiaxing, China. FAU - Xu, Kai AU - Xu K AD - Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. FAU - Chen, Mengyao AU - Chen M AD - Department of Medical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. FAU - Chen, Zhonggai AU - Chen Z AD - Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. FAU - Ran, Jisheng AU - Ran J AD - Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. FAU - Xiong, Yan AU - Xiong Y AUID- ORCID: 0000-0001-6127-2294 AD - Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. FAU - Wu, Lidong AU - Wu L AUID- ORCID: 0000-0001-9057-1234 AD - Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. LA - eng PT - Journal Article DEP - 20200928 PL - United States TA - Oxid Med Cell Longev JT - Oxidative medicine and cellular longevity JID - 101479826 RN - 0 (Interleukin-1beta) RN - 0 (NF-kappa B) RN - 0 (RNA, Small Interfering) RN - 0 (Reactive Oxygen Species) RN - 6SMK8R7TGJ (Oleanolic Acid) RN - EC 1.14.99.1 (Cyclooxygenase 2) RN - EC 3.5.1.- (Sirtuin 3) SB - IM MH - Aged MH - Cell Survival/drug effects MH - Cells, Cultured MH - Cyclooxygenase 2/genetics/metabolism MH - Female MH - Humans MH - Interleukin-1beta/pharmacology MH - Male MH - Middle Aged MH - NF-kappa B/*metabolism MH - Oleanolic Acid/*pharmacology MH - Osteoarthritis/metabolism/*pathology MH - RNA Interference MH - RNA, Small Interfering/metabolism MH - Reactive Oxygen Species/chemistry/metabolism MH - Signal Transduction/*drug effects MH - Sirtuin 3/antagonists & inhibitors/genetics/*metabolism MH - Synoviocytes/cytology/drug effects/metabolism MH - Up-Regulation/drug effects PMC - PMC7542488 COIS- All authors declare that they have no competing interests. EDAT- 2020/10/17 06:00 MHDA- 2021/05/13 06:00 PMCR- 2020/09/28 CRDT- 2020/10/16 05:53 PHST- 2020/03/21 00:00 [received] PHST- 2020/06/04 00:00 [revised] PHST- 2020/08/01 00:00 [accepted] PHST- 2020/10/16 05:53 [entrez] PHST- 2020/10/17 06:00 [pubmed] PHST- 2021/05/13 06:00 [medline] PHST- 2020/09/28 00:00 [pmc-release] AID - 10.1155/2020/7517219 [doi] PST - epublish SO - Oxid Med Cell Longev. 2020 Sep 28;2020:7517219. doi: 10.1155/2020/7517219. eCollection 2020.