To confirm previous studies, the last of the measurements performed involving the molecular mechanism of the apoptosis process was the assessment of the activity of caspase 3/7 in breast cancer cells (MCF-7 and MDA-MB-231) treated with the compounds under investigation (EDAG-1 and EDAG-8) and the conventionally used therapeutic agent (cisplatin) at 0.5 and 1 μM concentrations (treatment duration: 24 h). The gene discussed is CASP3; the disease is breast cancer.