TGFB1 and cancer: First, a robust pan‐cancer derived EMT gene signature was obtained (Mak et al, 2016) (Appendix Table S2), and its overall expression pattern with increased mesenchymal and decreased epithelial genes expression in NSCLC cell line expression profiles (A549, NCI‐H358 and HCC827) treated with TGF‐β1 was confirmed (Appendix Fig S1A–C).