Fig. 9From: A purified and lyophilized Pseudomonas aeruginosa derived pyocyanin induces promising apoptotic and necrotic activities against MCF-7 human breast adenocarcinomaThe cytotoxic effect of pyocyanin on normal human cell PBMCs (A) and on MCF-7 cells using MTT assay B showed selective cytotoxicity on MCF-7 at concentrations below 45 μg/ml without affecting normal human cells. The error bars indicate standard deviations. The asterisks represent statistical significance (P < 0.05).Back to article page