Fig. 4

Cytotoxicity assay. Cell survival measured by CellTiter-Blue® after 24 h of (+)-pinoresinol treatment on MDA-MB-231, MCF7 and MCF10A cells. Data are represented as the treatment average (±SEM) with respect to the control, which was considered as 100 %, for three independent assays carried out in triplicate. * MDA-MB-231, † MCF7 and ∆ MCF10A indicate statistically significant differences at p < 0.05