IFNG and nasopharyngeal carcinoma: We also administrated exogenous IFN-γ to three types of NPC cell lines, CNE-1, CNE-2 and 5- 8F, and did qPCR, flow cytometry (FC), Western-blot (WB) and RNA-Seq after 0, 4, 12, and 24 hours, to determine the expression level of above molecules at each time point.