Table 2.

ABZ induces a lower SF2 (ie supra-additive) than the expected added SF2 (EAS) calculated by adding the effect of radiation alone and ABZ alone.

		% Survival
Cell line	ABZ (nM)	0 Gy	2 Gy	EAS
A375	0	100	61.6
	100	101.3	57.8
	500	93.2	28.1	53.8
A2058	0	100	85.0
	100	93.4	76.2
	500	80.2	56.8	64.8
H1530	0	100	62.8
	100	89.4	58.9
	500	80.5	37.1	43.3
H446	0	100	84.7
	100	92.6	73.3
	500	75.6	54.5	60.3