Proteomic Comparison of Malignant Human Germ Cell Tumor Cell Lines

Figure 4

Immunohistochemical analysis of selected proteins (more highly expressed in TCam-2 than in NTERA-2) in tumor-free testis, GCNIS, seminoma, and embryonal carcinoma: a tumor-free testis and GCNIS show no differences in CD81 and CBX-3 >expression (a, b, f, g). The expression of CD81 and CBX-3 in embryonal carcinomas (d, i) is significantly lower than that in seminomas (c, h). The differences between seminomas and embryonal carcinomas in staining intensity (IRS) of CD81 (i) and CBX-3 (j) are significant.