PGR and cancer: The IC50 values of the MO2C-treated cancer cells were 11.31 μg/mL (MDA-MB-231ER(-)/PR(-)), 15.45 μg/mL (MCF-7ER(+)/PR(+)) 18.9 μg/mL (HepG2), 26.33 μg/mL (Huh-7), 30.17 μg/mL (LoVo), and 36.76 μg/mL (HCT116).