Table 3.

Survival Fraction on Ishikawa Cells of Cordycepin, Cisplatin, and Their Combinations

Compounds (Concentration)	Survival Fraction*
Cordycepin (12.5 μg/ml)	0.97 ± 0.02
Cordycepin (25 μg/ml)	0.78 ± 0.01
Cordycepin (50 μg/ml)	0.15 ± 0.03
Cordycepin (100 μg/ml)	0.02 ± 0.02
Cisplatin (0.0625 μg/ml)	0.51 ± 0.03
Cisplatin (0.125 μg/ml)	0.36 ± 0.03
Cisplatin (0.25 μg/ml)	0.06 ± 0.01
Cisplatin (0.5 μg/ml)	0.02 ± 0.01
Cordycepin (12.5 μg/ml) plus cisplatin (0.0625 μg/ml)	0.34 ± 0.04
Cordycepin (12.5 μg/ml) plus cisplatin (0.125 μg/ml)	0.24 ± 0.01
Cordycepin (12.5 μg/ml) plus cisplatin (0.25 μg/ml)	0.04 ± 0.01
Cordycepin (25 μg/ml) plus cisplatin (0.0625 μg/ml)	0.34 ± 0.04
Cordycepin (25 μg/ml) plus cisplatin (0.125 μg/ml)	0.18 ± 0.01
Cordycepin (25 μg/ml) plus cisplatin (0.25 μg/ml)	0.02 ± 0.01

^*The values of all survival fractions are p < 0.01.