Immunohistochemical Expression and Prognostic Value of CD97 and Its Ligand CD55 in Primary Gallbladder Carcinoma

Figure 1

Immunohistochemical stainings for CD97 and CD55 in GBC tissues (original magnification ×200). (A) and (B) CD97 and CD55 stainings were negative in nontumor brain tissues; (C) weak CD97 positive expression was found in the cytoplasm at various levels in GBC tissues with low clinical stage; (D) strong CD97 positive expression was found in the cytoplasm at various levels in GBC tissues with high clinical stage; (E) weak CD55 positive expression was found in the cell membrane at various levels in GBC tissues with low clinical stage; (F) strong CD55 positive expression was found in the cell membrane at various levels in GBC tissues with high clinical stage.