Fig. 2

Effect of different radiation dose on level of miR-21 and cell viability in TE-1 cells. Cells were exposed to different dose (0, 2, 4, 6, 8 Gy) of irradiation at a rate of 2.4 Gy/min and subsequently cultured for 48 h. Then, cells were collected. a miR-21 level and b cell viability were detected by qRT-PCR and MTT assay, respectively. c After irradiation at 6 Gy, cell viability in TE-1 cells was detected. *P < 0.05, **P < 0.01, ***P < 0.001 vs. 0 Gy/min