Chondrocyte cell cycle regulation

The regulation of the chondrocyte cell cycle is a complex network involving cyclin-dependent kinases (CDKs), cyclins (especially cyclin D1), transcription factors such as ATF-2, CREB, and SOX9, as well as multiple signaling pathways including TGF-β, Notch, FGFs, Hedgehog/Ihh, and BMP. These molecular regulators integrate signals to coordinate chondrocyte proliferation, cell cycle exit, differentiation, and apoptosis, especially during the process of endochondral ossification and growth plate development[1][3][4][5][7]. Disruption of key cell cycle proteins or signals (e.g., cyclin D1, ATF-2, Notch, FGFRs, PTH/PTHrP receptor pathways) can lead to skeletal growth defects such as dwarfism, chondrodysplasias, or abnormal cartilage development[1][3][4][5][7]. While not a single therapeutic target, the regulators within this network are considered therapeutic targets or biomarkers in diseases impacting bone and cartilage development.

Other names

Chondrocyte cell cycle controlCell cycle regulation in chondrocytesChondrocyte proliferation and differentiation regulation

Modulation of signaling pathways (e.g., TGF-β receptor inhibition, Notch pathway modulation, FGF inhibition); Inhibition of cyclin-dependent kinases; Interruption of transcription factor activity.