Figure 1

Representative results of p53, p21, pAkt, and 14-3-3σ imunohistochemistry in NPC tissues. Brown nuclear staining of tumor cells for p53 shown in A (× 100) and B (× 400), and for p21 in C (× 100) and D (× 400), and brown cytoplasm staining of tumor cells for pAkt shown in E (× 100) and F (× 400) and for 14-3-3σ in G (× 100) and H (× 400).