Consistent with this ability to target a cancer promoting cell surface protein, radionuclide-conjugated mAb 10D7 was effective as a contrast agent for PET imaging of subcutaneous and intraperitoneal xenografts in mice, and this mAb was able to specifically deliver a cytotoxin to inhibit proliferation of CDCP1 expressing EOC cells in vitro, and growth of intraperitoneal xenograft tumors of EOC cells in mice. This evidence concerns the gene CDCP1 and cancer.