PMID- 38342566 OWN - NLM STAT- MEDLINE DCOM- 20240214 LR - 20240216 IS - 1875-5364 (Electronic) IS - 1875-5364 (Linking) VI - 22 IP - 2 DP - 2024 Feb TI - Activation of NRF2 by celastrol increases antioxidant functions and prevents the progression of osteoarthritis in mice. PG - 137-145 LID - S1875-5364(24)60586-8 [pii] LID - 10.1016/S1875-5364(24)60586-8 [doi] AB - Excessive oxidative stress impairs cartilage matrix metabolism balance, significantly contributing to osteoarthritis (OA) development. Celastrol (CSL), a drug derived from Tripterygium wilfordii, has recognized applications in the treatment of cancer and immune system disorders, yet its antioxidative stress mechanisms in OA remain underexplored. This study aimed to substantiate CSL's chondroprotective effects and unravel its underlying mechanisms. We investigated CSL's impact on chondrocytes under both normal and inflammatory conditions. In vitro, CSL mitigated interleukin (IL)-1beta-induced activation of proteinases and promoted cartilage extracellular matrix (ECM) synthesis. In vivo, intra-articular injection of CSL ameliorated cartilage degeneration and mitigated subchondral bone lesions in OA mice. Mechanistically, it was found that inhibiting nuclear factor erythroid 2-related factor 2 (NRF2) abrogated CSL-mediated antioxidative functions and exacerbated the progression of OA. This study is the first to elucidate the role of CSL in the treatment of OA through the activation of NRF2, offering a novel therapeutic avenue for arthritis therapy. CI - Copyright (c) 2024 China Pharmaceutical University. Published by Elsevier B.V. All rights reserved. FAU - Liu, Mingming AU - Liu M AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Guo, Jiatian AU - Guo J AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Zhao, Jing AU - Zhao J AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Li, Hongye AU - Li H AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Feng, Xiaoxiao AU - Feng X AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Liu, Haojun AU - Liu H AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Zhang, Hao AU - Zhang H AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Jia, Xuejun AU - Jia X AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Wei, Rushuai AU - Wei R AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Li, Fang AU - Li F AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. FAU - Chen, Chong AU - Chen C AD - Institute of Hematology, Xuzhou Medical University, Xuzhou 221004, China. FAU - Hou, Mingzhuang AU - Hou M AD - Department of Orthopaedics, The First Afliated Hospital of Soochow University, Soochow University, Suzhou 215006, China. Electronic address: xhy_8@163.com. FAU - Lv, Nanning AU - Lv N AD - Department of Orthopedic Surgery, The Affiliated Lianyungang Clinical College of Xuzhou Medical University (The Second People's Hospital of Lianyungang), Lianyungang 222003, China. Electronic address: lvnanning123@163.com. FAU - Xu, Haiyan AU - Xu H AD - Department of human anatomy, Xuzhou Medical University, Xuzhou 221004, China. Electronic address: houmingzhuangyll@163.com. LA - eng PT - Journal Article PL - China TA - Chin J Nat Med JT - Chinese journal of natural medicines JID - 101504416 RN - 0 (NF-E2-Related Factor 2) RN - 0 (Antioxidants) RN - L8GG98663L (celastrol) RN - 0 (Pentacyclic Triterpenes) RN - 0 (Interleukin-1beta) SB - IM MH - Mice MH - Animals MH - *NF-E2-Related Factor 2/genetics/metabolism MH - Antioxidants/pharmacology/metabolism MH - *Osteoarthritis/drug therapy/metabolism/pathology MH - Pentacyclic Triterpenes/pharmacology/metabolism MH - Chondrocytes MH - Interleukin-1beta OTO - NOTNLM OT - Articular cartilage OT - Celastrol OT - Extracellular matrix OT - NRF2 OT - Osteoarthritis EDAT- 2024/02/12 05:43 MHDA- 2024/02/12 05:44 CRDT- 2024/02/11 20:59 PHST- 2023/08/26 00:00 [received] PHST- 2024/02/12 05:44 [medline] PHST- 2024/02/12 05:43 [pubmed] PHST- 2024/02/11 20:59 [entrez] AID - S1875-5364(24)60586-8 [pii] AID - 10.1016/S1875-5364(24)60586-8 [doi] PST - ppublish SO - Chin J Nat Med. 2024 Feb;22(2):137-145. doi: 10.1016/S1875-5364(24)60586-8.