Fig. 6. Examples of the large differences in IC50 values for cisplatin reported by 3 different labs (bars a, d; b, e and c, f) for the same cell lines (MCF7, human breast cancer, and MDA-MB-231, epithelial human breast cancer). The effect of the solvent used to solubilise cisplatin is highlighted; other differences in the screening conditions including type of assay, time of treatment, and composition of culture media are listed in Table S6.†.
