Fig. 2
Sensitivity of parental and reistant sub lines to docetaxel. The survival ratio of MCF-7 (a, b) and MDA-MB-231 (c, d) sub-lines compared to corresponding parental cell lines (MCF-7PAR/ MDAPAR). Cells were exposed to docetaxel at the indicated concentrations for 72 h and survival was estimated using an MTT assay. Values are expressed as relative values compared to the parental cell lines. Mean values of three independent experiments ± SEM are shown