Another cell adhesion molecule, the carcinoembryonic antigen‐related cell adhesion molecule 1 (CEACAM1), exhibited differential expression within the epithelium of the superficial bladder tumors and the prostate intraepithelial neoplasia of the prostate; however, in both cancers, CEACAM1 overexpression effectively suppressed tumor vascularization.23 The gene discussed is CEACAM1; the disease is prostate intraepithelial neoplasia.