Fig. 1From: Zoledronic acid blocks the interaction between breast cancer cells and regulatory T-cellsEffects of ZA treatment on proliferation of MDA-MB-231 cells. MDA-MB-231 cells were treated with various concentrations ZA for 72 h. Cell proliferation was determined by the XTT assay. Each data point represents the mean ± standard deviation based on quadruplicate determinations in three to five independent experiments. Significant difference was determined using one-way ANOVA; **P < 0.01, *** P < 0.001Back to article page