Kilinc Bugrahan Regaip, Kostak Feyza, Yilmaz Omer Faruk, Pehlivanoglu Suray, Sirin Duygu Yasar
Department of Biology, Institute of Natural and Applied Sciences, Namık Kemal University, Tekirdag, Turkey.
Department of Molecular Biology and Genetics, Necmettin Erbakan University, Konya, Turkey.
J Cell Mol Med. 2025 Aug;29(16):e70791. doi: 10.1111/jcmm.70791.
Osteoarthritis is a progressive degenerative joint disorder characterised by cartilage degradation and chronic inflammation. Beyond their well-established lipid-lowering properties, statins, particularly pitavastatin and rosuvastatin, have demonstrated promising anti-inflammatory and chondroprotective effects. This study comprehensively evaluated these effects on human primary chondrocytes using an integrative approach involving in silico and in vitro experiments. Key molecular targets, including NF-κB, IL-1β and SOX9, were analysed to elucidate the mechanisms underlying the therapeutic potential of these statins. Molecular docking analyses using the CB-Dock2 platform revealed strong binding affinities of both statins with the target proteins, with pitavastatin exhibiting a higher binding score (-8.0) compared to rosuvastatin (-7.9). Bioinformatics analyses via STITCH and STRING databases highlighted the involvement of both statins in pathways regulating inflammation, lipid metabolism, and cartilage homeostasis. In vitro experiments demonstrated that both statins preserved chondrocyte viability at 24 and 48 h; however, prolonged exposure led to significant declines, with rosuvastatin exhibiting greater cytotoxicity. Western blot analyses confirmed that both statins effectively suppressed IL-1β expression, indicative of potent anti-inflammatory activity. Pitavastatin transiently enhanced SOX9 expression, peaking at 24 h before declining, while rosuvastatin showed a more sustained but moderate increase. NF-κB expression steadily increased over time with both statins, suggesting potential activation of compensatory inflammatory pathways during prolonged exposure. These findings underscore the dual anti-inflammatory and chondroprotective roles of pitavastatin and rosuvastatin, while highlighting the need for careful consideration of dosage and treatment duration to mitigate cytotoxic effects and provide novel insights into the molecular mechanisms of statins.
骨关节炎是一种进行性退行性关节疾病,其特征为软骨降解和慢性炎症。除了其已确立的降脂特性外,他汀类药物,特别是匹伐他汀和瑞舒伐他汀,已显示出有前景的抗炎和软骨保护作用。本研究使用涉及计算机模拟和体外实验的综合方法,全面评估了这些药物对人原代软骨细胞的影响。分析了包括NF-κB、IL-1β和SOX9在内的关键分子靶点,以阐明这些他汀类药物治疗潜力的潜在机制。使用CB-Dock2平台进行的分子对接分析显示,两种他汀类药物与靶蛋白均具有较强的结合亲和力,匹伐他汀的结合分数(-8.0)高于瑞舒伐他汀(-7.9)。通过STITCH和STRING数据库进行的生物信息学分析强调了两种他汀类药物均参与调节炎症、脂质代谢和软骨稳态的途径。体外实验表明,两种他汀类药物在24小时和48小时时均能保持软骨细胞活力;然而,长时间暴露会导致显著下降,瑞舒伐他汀表现出更大的细胞毒性。蛋白质印迹分析证实,两种他汀类药物均能有效抑制IL-1β表达,表明其具有强大的抗炎活性。匹伐他汀短暂增强SOX9表达,在24小时达到峰值后下降,而瑞舒伐他汀则表现出更持续但适度的增加。两种他汀类药物作用下,NF-κB表达随时间稳步增加,表明长时间暴露期间可能激活了代偿性炎症途径。这些发现强调了匹伐他汀和瑞舒伐他汀的双重抗炎和软骨保护作用,同时突出了需要仔细考虑剂量和治疗持续时间以减轻细胞毒性作用,并为他汀类药物的分子机制提供了新的见解。