Abstract Title:

Thymoquinone Inhibits IL-1β-Induced Inflammation in Human Osteoarthritis Chondrocytes by Suppressing NF-κB and MAPKs Signaling Pathway.

Abstract Source:

Inflammation. 2015 Jul 9. Epub 2015 Jul 9. PMID: 26156811

Abstract Author(s):

Dongyan Wang, Jiutao Qiao, Xin Zhao, Tianxin Chen, Dehong Guan

Article Affiliation:

Dongyan Wang


Thymoquinone, an active ingredient isolated from Nigella sativa, has been reported to have anti-inflammatory effects. However, the anti-inflammatory effect of thymoquinone on IL-1β-stimulated osteoarthritis chondrocytes remains unclear. In this study, we designed to investigate the anti-inflammatory effects and elucidated the underlying mechanism of thymoquinone on IL-1β-stimulated human osteoarthritis chondrocytes. The effects of thymoquinone on inflammatory mediators COX-2, iNOS, NO, PGE2, as well as MMP-1, MMP3, MMP13 production were detected. The results demonstrated that thymoquinone concentration-dependently inhibited IL-1β-induced COX-2, iNOS, NO, and PGE2 production. Thymoquinone also suppressed IL-1β-induced MMP-1, MMP3, and MMP13 production. We found thatthymoquinone significantly inhibited IL-1β-induced NF-κB activation and IκBα degradation. In addition, thymoquinone was found to suppress IL-1β-induced mitogen-activated protein kinases (MAPKs) activation. In conclusion, thymoquinone inhibited IL-1β-induced inflammatory mediator production byinhibition of NF-κB and MAPKs signaling pathways in osteoarthritis chondrocytes. Thymoquinone may be a potential agent in the treatment of osteoarthritis.

Study Type : Human In Vitro

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