KLF4 and cancer: To interrogate the role of KLF4 in EMT/MET further, we performed a pairwise correlation analysis in the Cancer Cell Line Encyclopedia (CCLE) cohort among three distinct transcriptomic-based EMT scoring metrics (76GS, KS, and MLR) and the expression levels of KLF4 and those of the other canonical epithelial and mesenchymal factors.