highly significantp < 0.01
CC 50 – 50% cytotoxic concentration (mean ± SD; μg/mL); SI – Selectivity Index (CC 50 VERO/ CC 50 Cancer); Statistical significance of higher cytotoxicity towards cancer-originating cell lines was evaluated regarding results obtained for non-cancerous VERO cells (2-way ANOVA; Dunnett’s multiple comparisons test); a highly significant ( p < 0.01) anticancer cytotoxicity was labeled where applicable.