Figure 1.
PHY906 does not alter the radiosensitivity of EMT6 tumor cells in cell culture. Survival curves for EMT6 mouse mammary tumor cells in exponential growth in cell culture treated with radiation alone or in combination with 2 mg/ml of PHY906 present for 4 h before, during and 20 h after irradiation. The surviving fractions for cells treated with PHY906 plus radiation was normalized to the survivals for cells with PHY906 alone. Points are means ± SEM of data from 3 independent experiments.