Table I.

IC₅₀ volume of non- and mildly-toxic doses of arsenic trioxide at different time-points.

Cell line		IC50µMa			95% >SR>85%b			SR>95%c
		24 h	48 h	72 h	24 h	48 h	72 h	24 h	48 h	72 h
SGC7901/ADM	5.57±0.36		2.63±0.18	1.42±0.09	0.10–0.08	0.10–0.75	0.05–0.25	0.01–0.01	0.01–0.01	0.01–0.05
SGC7901/S	5.94±0.54		3.06±0.28	1.59±0.12	0.25–1.30	0.07–0.08	0.04–0.25	0.01–0.25	0.01–0.07	0.01–0.04

^aData are presented as the mean ± standard deviation of three experiments (n=3).

^bSR>95% was considered the non-toxic dose.

^c95% >SR>85% was considered a mildly-toxic dose. SR, survival rate; IC₅₀, half maximal inhibitory concentration.