ZEB2 and breast cancer: Increased lnc-ROR was detected in breast cancer tissues and overexpressed lnc-ROR promoted epithelial–mesenchymal transition (EMT) and tamoxifen resistance by acting as a molecular sponge for miR-205 and increasing the expression of ZEB1 and ZEB2, given the binding sites between miR-205 and ZEB2 (Zhang et al., 2017).