EPCAM and neoplasm: Moreover, 37 ± 6% of EpCAM+E-cadherin+ tumour cells expressed αV in association with β6, while only 14% ± 4% of non-epithelial αV+EpCAMnegE-cadherinneg cells were β6+, suggesting that αV pairs with β8 or β3 in αV+β6neg cells (Fig. 2b and Supplementary Fig. 2c).