EGFR and cervical cancer: 7MeERT also had higher antiproliferative activities in epidermoid carcinoma A431 cells overexpressing EGFR (IC50 = 5 μM, Figure 2G) and cervical cancer HeLa cells (IC50 = 1 μM, Figure 2H) compared to Ertredin (IC50 = 50 μM).