EPCAM and colorectal carcinoma: These co-cultures contained a higher number of cells with only a low cell surface level of the epithelial molecule EpCAM while having an increased percentage of CRC cells with positivity for lumican (LUM) that had been proven as an EMT marker in CRC [24, 25] (Fig. 3C-D), indicating the partial EMT (pEMT) in these cultures.