Drug resistance of MDA-MB-453.

<p>(A-C) MDA-MB-453 cells were treated with the indicated concentration of anti-cancer drugs paclitaxel, 5-fluorouracil and cyclophosphamide respectively and the cell survival was determined using MTT assay. (D) Table showing the IC₅₀ concentration of drugs determined using the survival curves. Error bars are means ± SD of three independent experiments; (*p < 0.05, **p < 0.01, ***p < 0.001).