Figure 1.

Immunostaining for New York esophageal squamous cell carcinoma (NY-ESO), melanoma antigen gene (MAGE)-A4, p53, and Ki-67 (A-D). Representative images showing staining for NY-ESO-1 (A), MAGE-A (B), p53 (C), and Ki-67 (D). NY-ESO-1 (A) and MAGE-A4 (B) were positive in the cytoplasm, whereas p53 (C) and Ki-67 (D) were positive in the nucleus. Scale bars: 100 μm.