Immuno-histochemical staining for p63 in tumor transplants generated from the As³⁺ and Cd²⁺-transformed line.

(A). As#2. There is moderate nuclear staining for p63 in the less differentiated peripheral tumor cells (#) whereas the well-differentiated cells (*) in the center of the tumor nests show no staining. (B). Cd#3. There is moderate nuclear staining for p63 in the less differentiated peripheral tumor cells (#) whereas the well-differentiated cells (*) in the center of the tumor nests show weak or no staining. The brown color indicates the presence of the protein whereas the blue/purple color indicates the nuclei that are stained with the counterstain hematoxylin. All images are at a magnification of 200X.