Figure 2.

Immunohistochemical staining of positive control (G1) tissue using antibody against β-catenin. Intense immunoreactivity was present throughout the epithelial cells, in cell membrane and cytoplasm (100× magnification) (1). Immunohistochemical staining of G2 tissue using antibody against β-catenin showing less intense staining (100× magnification) (2). Immunohistochemical staining of negative control (G5) tissue using antibody against β-catenin. (100× magnification)(3).