Cellular Redox Status Regulates Emodin-Induced Radiosensitization of Nasopharyngeal Carcinoma Cells In Vitro and In Vivo

Table 2

Cell survival rates, expressed as a fraction of control (𝑛=3, 𝑥±𝑠).

Doses (Gy)	Fraction surviving
	radiation	hypoxia + radiation	3.9 𝜇g/mL emodin + hypoxia + radiation	7.8 𝜇g/mL emodin + hypoxia + radiation
0	1.000 ± 0.000	0.983 ± 0.010	0.972 ± 0.022	0.941 ± 0.041
2	0.763 ± 0.034	0.962 ± 0.021	0.890 ± 0.025	0.843 ± 0.036
4	0.284 ± 0.020	0.764 ± 0.014	0.423 ± 0.019	0.370 ± 0.027
6	0.122 ± 0.019	0.438 ± 0.023	0.179 ± 0.030	0.162 ± 0.018
8	0.060 ± 0.004	0.272 ± 0.016	0.103 ± 0.040	0.080 ± 0.004