Table 2

Clonogenic assay

Addition	Colony Number
nM
None	46 ± 5
L-365,260, 1000	17 ± 5^2-150
L-364,718, 1000	38 ± 5
CI-988, 1000	20 ± 4^2-150
CCK-8, 10	103 ± 9^2-160
CCK-8 ⁺ CI-988, 1000	53 ± 4

The mean number of NCI-H209 colonies ± S.D. of three determinations is indicated; this experiment is representative of two others.

↵2-150 p < 0.05,
↵2-160 p < 0.01 using Student's ttest.