EIF4G1 and nasopharyngeal carcinoma: In addition to the transcript level, using immunohistochemistry, we also found that the levels of EIF4G1 protein were significantly greater in formalin-fixed paraffin-embedded (FFPE) NPC tissue samples (n = 137) than the non-cancerous nasopharyngeal tissue samples (n = 53) (P < 0.001) (Table 1).