Fig. 3From: Regulation of voltage-gated potassium channels attenuates resistance of side-population cells to gefitinib in the human lung cancer cell line NCI-H460Characterization of SP cells in NCI-H460 lung cancer cells. a Real-time RT-PCR analysis of cancer stem cell marker genes b showing proliferation of sorted SP cells and Non-SP cells. Results are mean ± SE of triplicate experiments, (*) p < 0.05Back to article page