Figure 1. GRB7 expression in normal breast and ovarian tissues.

Representative images of normal tissues stained with the GRB7 antibody (brown) and Hematoxylin (blue). (A) Normal breast tissue showing no GRB7 expression in the mammary ducts. (B) Normal breast tissue showing high GRB7 expression (3+) in the myoepithelial cells of mammary ducts. (C) Normal ovarian surface epithelium showing strong cytoplasmic GRB7 (3+) expression. (D) Normal ovarian tissue showing no GRB7 expression in the stroma. (E) Normal fallopian tubes with weak GRB7 (1+) expression. All images were taken with a 40× objective (scale bar 50 μm).