Table 2. The viability of GC cells in which DUSP4 was knocked down or overexpressed treated with different concentrations of DOX.

cell lines	IC50(μg/ml)
	Negative+ DOX	DUSP4 siRNA+ DOX	DUSP4 plasmid+DOX
SGC7901	0.831(0.7142 to 0.9478)	0.4135(0.3733 to 0.4538)	1.734(0.9695 to 2.498)
BGC	1.039(0.9223 to 1.155)	0.7258(0.6675 to 0.7841)	2.426(1.624 to 3.228)
KATO	2.755(2.262 to 3.247)	0.4289(0.4031 to 0.4547)	3.718(2.742 to 4.694)
mkn45	3.198(2.536 to 3.860)	0.4323(0.3490 to 0.5155)	5.127(2.440 to 7.814)

IC₅₀ values show Doxorubicin concentration [μg/ml. mean (95% confidence intervals)].