EPCAM and lung cancer: In 2019, Marhuenda determined the expression levels of epithelial cell adhesion molecules (EpCAMs) in four major subtypes of lung cancer cells, H522, H1437, H1975, and H520, under different hypoxic conditions to evaluate the effects of hypoxia on the growth and invasiveness of different subtypes of lung cancer (Marhuenda et al., 2019).