ZEB1 and breast cancer: Transforming growth factor induced (TGFBI), Zinc Finger E-Box Binding Homeobox 1 (Zeb1) and Snail Family Transcriptional Repressor 2 (Snai2) expression was increased after mesenchymal transformation (Figure 1, Figures S1A,D–F), while vimentin expression was upregulated in MCF-7-EMT breast cancer cells (Figure 1, Figure S1C) and Snail Family Transcriptional Repressor 1 (Snai1) was upregulated in T47D-EMT cells.