EPCAM and oropharynx squamous cell carcinoma: Positive staining was seen with the goat polyclonal R&D EpCAM antibody on the feline normal and neoplastic mammary cell lines and the oropharyngeal squamous cell carcinoma cell lines, whereas no staining was evident on the NLFK normal renal epithelial cell line (Figures 3, 4 and Table 2).