Notably, these findings, using KPC;YFP (LSL‐KrasG12D/+;Trp53R172H/+;Pdx1‐Cre;R26LSL‐YFP) mice employing lineage‐traced cancer cells (Zheng et al, 2015), were validated using the additional mesenchymal markers such as Fsp1, Zeb1, and vimentin (Appendix Fig S1). This evidence concerns the gene ZEB1 and cancer.