SETD1A and nasopharyngeal carcinoma: To determine whether nasopharyngeal carcinoma cells have molecular changes in SETD1A, the present study compared the difference in the expression of SETD1A in nasopharyngeal carcinoma cell lines (C666-1, SUNE-1, HNE-1, and 6-10b) and human nasopharyngeal epithelial cell line Np69 by RT-qPCR and western blotting analysis, respectively.