Research Article

Effect of Chemotherapeutics and Tocopherols on MCF-7 Breast Adenocarcinoma and KGN Ovarian Carcinoma Cell Lines In Vitro

Figure 1

Doxorubicin-induced cytotoxicity. MCF-7 and KGN cells were exposed to Dox 0, 5, 10, 25μM for (a) 24h (24H+), (b) 24h exposure and 24h culture with medium (24H+24H-), (c) 24h exposure and 48h culture with medium (24H+48H-), or (d) 72h continuous exposure (72H+). Complete RPMI (MCF-7) or DMEM/F12 (KGN) without Dox (0μM) was used as a control. Cell viability was assessed by a crystal violet assay, in which cell number was obtained by comparison with a standard curve and % cell viability was calculated from medium control. Means ± SD of 3 independent experiments shown. Data analysed by one-way ANOVA with Tukey’s post hoc test. p ≤ 0.05; p ≤ 0.01, p ≤ 0.0001 compared to control.
(a) 24H+
(b) 24H+24H-
(c) 24H+48H-
(d) 72H+