Figure 3

Immunohistochemical staining of CD18/HPAF cells grown in the pancreas of the nude mouse (A) and in SC tissues (B). The CD18/HPAF tumours in the pancreas show immunoreactivity to anti-MUC4 antiserum (1 : 100 dilution (A)), whereas the pancreatic tissue of the nude mouse remains unstained, as do the tumours grown in SC tissue (B). Original × 50 (A, B).