MTOR and nasopharyngeal carcinoma: Spearman's correlation analysis revealed that in NPC tumors, LMP1 expression positively correlated with expression of p-mTOR (r = 0.359, p < 0.001), p-P70S6K (r = 0.293, p < 0.001), and p-4EBP1 (r = 0.290, p < 0.001) (Table 1).