Osteoarthritis (OA) is the most prevalent and debilitating joint disease, and there are currently no effective disease-modifying treatments available. Multiple risk factors for OA, such as aging, result in progressive damage and loss of articular cartilage. Autonomous circadian clocks have been identified in mouse cartilage, and environmental disruption of circadian rhythms in mice predisposes animals to OA-like damage. However, the contribution of the cartilage clock mechanisms to the maintenance of tissue homeostasis is still unclear. Here, we have shown that expression of the core clock transcription factor BMAL1 is disrupted in human OA cartilage and in aged mouse cartilage. Furthermore, targeted
Michal Dudek, Nicole Gossan, Nan Yang, Hee-Jeong Im, Jayalath P.D. Ruckshanthi, Hikari Yoshitane, Xin Li, Ding Jin, Ping Wang, Maya Boudiffa, Ilaria Bellantuono, Yoshitaka Fukada, Ray P. Boot-Handford, Qing-Jun Meng
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