Figure 1.

Immunohistochemical staining of SOX4 expression in PGC. Commercially available mouse-antihuman monoclonal antibody against SOX4 was used to stain the paraffin section. A, Strong cytoplasmic and nuclear expression of SOX4 was detected at the tumor cells of PGC tissues (original magnification × 400); B, SOX4 was negative in normal epithelium of gallbladder (original magnification × 400).