ANTIPROGESTAGENOS 5 ANTIPROGESTINS 5 BREAST CANCER 5 CANCER DE MAMA 5 ISOFORMAS DEL RECEPTOR DE PROGESTERONA ACQUIRED HORMONE RESISTANCE 3 AKT 3 DE NOVO HORMONE-RESISTANCE 3 DNA-METHYLATION 3 DNMT INHIBITORS 3 ERK 3 INHIBIDORES DE LAS DNMTS 3 METASTASIS 3 METILACION 3 PROGESTERONE RECEPTOR ISOFORMS 3 RESISTENCIA HORMONAL ADQUIRIDA 3 RESISTENCIA HORMONAL CONSTITUTIVA 3 TUMOR REGRESSION 3 CELL CYCLE INHIBITORS 2 EJE RB-E2F 2 INHIBIDORES DE CICLO CELULAR 2 PROGESTERONE RECEPTORS ISOFORMS 2 RB-E2F AXIS 2