Fig. 5From: MicroR-545 enhanced radiosensitivity via suppressing Ku70 expression in Lewis lung carcinoma xenograft modelEffect of irradiation on cell proliferation. The cells were transfected with miR-545 inhibitor or si-Ku70 and then irradiated with a single dose of 5Â Gy/1f/1d for 24Â h. (a) cell viability by using MTT assay. (b) Cell apoptosis by using TUNEL assayBack to article page