Fig. 3

Assessment of caspase inhibition. MDA-MB 231 cells were incubated with 5 mM MβCD in the presence and absence of Z-VAD [OME]-FMK (20 µM) for a 2 h, b 4 h, c 6 h, d 12 h and e 24 h. Cell viability was measured by MTT (a–d) and XTT (e). Statistical analysis: One way anova, post hock test Tukey. *P < 0.05, **P < 0.01, **P < 0.001, N.S. not significant