CENPN and nasopharyngeal carcinoma: In order to investigate the possible mechanism by which knocking down CENP-N improves the radiosensitivity of NPC cells, the cells were exposed to a single dose of 6 Gy at 400 cGy/min for 1 min, after 24 h, the cellular proteins were extracted to detect the effect of knocking down CENP-N combined with radiotherapy on this signaling pathway and the expression of proteins associated with cell apoptosis, DNA damage, and cell cycle.