EPCAM and neoplasm: In addition, we tested several markers involved in tumor invasion and migration, including epithelial cell adhesion molecule (EpCAM) [22, 23], αvβ6 integrin [24], urokinase-type plasminogen activator receptor (uPAR) [25, 26], and epithelial membrane antigen (EMA, also known as MUC1) [27, 28].