Immunohistochemical study on p53, H-rasp21, c-erbB-2 protein and PCNA expression in HCC tissues of Han and minority ethnic patients

Figure 1 Strongly positive immunoperoxidase staining of the p53 protein with the anti-p53 mAb Do-7 in HCC, predominantly in nuclei. Absence of staining in bnontumorous liver. LSAB method, × 100

Figure 2 HCC with diffuse PCNA staining using mAb PC10. LSAB method, × 200

Figure 3 Cholangiocellular carcinoma showing extensive strongly membrance and plasma positivity for c-erbB-2 using poly-Ab code N. A485. LSAB method, × 400

Figure 4 Diffuse H-rasp21 using mAb Ncc-Ras-001 staining in HCC and nontumorious tissues. LSAB method, × 400