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MC_21839_sm_suppl-fig.tif44KSupplementary Figure: Effect of quercetin-3-methyl ether or lapatinib on cell growth in lapatinib-resistant breast cancer cells (SK-Br-3-Lap R). Cells were treated with quercetin-3-methyl ether (0, 1, or 5 μM) or lapatinib (1 μM) in 10% FBS/McCoy for 72 h. Cell growth was assessed using the MTS assay. Data are shown as means S.E. The asterisks (*) indicate a significant difference (p < 0.05) between groups treated with quercetin-3-methyl ether and the group treated with lapatinib.

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