An extended application on other human and mouse cancer cell lines with expression of Prss14/ST14 showed mAb3F3 can stain membrane or cell contact areas of MDA-MB-453 triple negative breast cancer, SNU216 and MKN45 human gastric adenocarcinoma, PC3 human prostate cancer, OE19 human esophageal adenocarcinoma, and HCT116 human colon carcinoma (Fig. 5c). The gene discussed is ST14; the disease is triple-negative breast carcinoma.