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. 2020 Dec 5;11(12):1035. doi: 10.1038/s41419-020-03241-y

Fig. 1. Derivation of a chemoresistant variant of Med8A MB.

Fig. 1

a Med8A-S and DAOY cells were treated with vincristine at the indicated concentrations for 48 h, and cell viability assessed by measuring the fluorescence after incubation with CellTiter-Blue (CTB) for 4 h. As plotted is the mean ± SD of an experiment performed in triplicates, representative of at least 3 independent experiments. b Schematic for derivation of drug resistant Med8A cells. The chemosensitive parental cell line, Med8A-S, was subjected to incremental selection in vincristine over a period of 4 months to derive the stable chemoresistant variant Med8A-R. The endpoint vincristine concentration was at 0.16 μg/mL. Med8A-S and Med8A-R were treated with (c) vincristine (d) cisplatin (e) mitoxantrone and (f) idarubicin for 48 h and cell viability assessed with CTB. The data represent the mean ± SD of three replicates; ***p < 0.001, two-way ANOVA with Bonferroni’s multiple comparison test.