To create isogenic cell line pairs for mechanistic studies, we incubated epithelial/resistant NSCLC cells (H1975, HCC366, and HCC4006) with 5 ng/ml TGF‐β for at least 14 days, which led to the expected changes in the expression of vimentin, Snail, Slug, ZEB1, Twist, E‐cadherin, β‐catenin, and claudin 7 (Fig 2A and Appendix Fig S2). Here, SNAI1 is linked to non-small cell lung carcinoma.