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Papers of the Week
Il-1β Promotes Superficial Zone Cells Senescence in Articular Cartilage by Inhibiting Autophagy.
Authors
Xu W, Wang J, Cui L, Huang C, Xia N, Xie M, Liu D, Liao DAbstract
The superficial zone cells in articular cartilage (SFZCs) have been identified as stem/progenitor chondrocytes and promoted cell self-renewal in the osteoarthritis (OA). Several studies emphasized the involvement of senescence and autophagy in OA. Interleukin-1β (IL-1β) is one of the main inflammatory mediators of OA, and whether it induces senescence and autophagy in SFZCs remains unclear. The present study aimed to investigate autophagy flux, mitochondrial function, and intracellular reactive oxygen species (ROS) that resulted in senescence in SFZCs induced by IL-1β.