Gene expression data for 52 CRC cell lines from the CCLE cohort of the Gene Expression Atlas (https://www.ebi.ac.uk/gxa/home) suggest that the majority of CRC cell lines are epithelial (expressing variable but detectable E‐cadherin (CDH1) and keratins (KRT18, KRT20)), with only a small minority (5/52) purely expressing mesenchymal markers (Vimentin (VIM) and ZEB1; (Figure S1A) (Papatheodorou et al., 2018). The gene discussed is ZEB1; the disease is colorectal carcinoma.