Efatutazone affects the expression of differentiation markers in MCFDCIS cells. Fold changes of human CK6a & b, CK17, CK8, MUC1, PgR, and ESR1 mRNAs in MCFDCIS cells treated 72 h with 0.01 µM efatutazone analyzed by qRT-PCR and compared to cells treated with vehicle. Mean ± SEM (Student’s t test; n = 3; *p < 0.05 vs vehicle; **p < 0.01 vs vehicle)