ZEB1 and breast cancer: These miRNAs have been shown to maintain the epithelial phenotype in breast cancer; to inhibit cell migration and invasion by targeting epithelial-mesenchymal transition (EMT) repressors and transcriptional factors ZEB1 and ZEB2 [12]–[15]; to suppress the genes involved in migration, such as MSN, FN1[16], and WAVE3[17]; and to directly target actin-regulatory proteins, FHOD1 and PPM1F [18].