EPCAM and neoplasm: Tumor cells isolated from pancreatic tumors were analyzed for the expression of the EMT transcription factors Snail 1, Snail 2, Twist 1, Twist 2, Zeb 1, and Zeb 2 (Figure 4A), the epithelial markers E-cadherin, b-catenin, and Epcam and the mesenchymal markers Vimentin and N-cadherin (Figure 4B).