<p>The expression of p-Mnk1 and p-eIF4E protein was detected by immunohistochemistry using specific antibodies as described in the section of materials and methods. Strong positive expression of p-Mnk1 was found in nuclei of NPC (Fig. 1A, 20×, IHC, AEC staining). Low and weak nuclear positive expression of p-Mnk1 was showed in the non-cancerous nasopharyngeal epithelial cells (Fig. 1B, 20×, IHC, AEC staining). Strong positive expression of p-eIF4E in the cytoplasm of NPC (Fig. 1C, 20×, IHC, AEC staining). Weak positive expression of p-eIF4E in the cytoplasm of the non-cancerous nasopharyngeal epithelial cells (Fig. 1D, 20×, IHC, AEC staining).</p
