Research Article

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

Table 4

Effects of emodin and radiation on apoptosis and cell cycle progression of CNE-1 cells ( ) %.

GroupsG0/G1G2/M SIApoptosis

Control70.53 ± 1.3410.21 ± 0.6619.26 ± 0.8610.1 ± 2.1
Hypoxia72.16 ± 3.735.81 ± 0.1522.03 ± 1.121.7911.2 ± 0.8
Emodin68.73 ± 0.677.41 ± 0.1423.86 ± 1.161.3410.9 ± 1.4
2 Gy68.27 ± 3.3414.50 ± 0.2517.14 ± 0.640.6815.9 ±
Hypoxia + emodin68.91 ± 1.328.01 ± 0.2123.12 ± 1.351.2413.8 ± 1.7
Hypoxia + 2 Gy69.27 ± 2.6213.91 ± 0.1716.81 ± 0.820.7213.6 ± 0.7
Emodin + 2 Gy67.24 ± 1.6420.51 ± 1.0212.19 ± 0.140.47*22.8 ± 1.8
Emodin + hypoxia + 2 Gy63.33 ± 1.7921.14 ± 1.2115.53 ± 0.320.43*18.7 ± 1.3

SI (sensitivity index) = (experimental group / )/(control group / ); *SI ≤ 0.5, indicated by the duration of phase.
P < 0.05 compared with hypoxic cells group.