Fig. 5

Experiments in vivo. a Illustration of the experimental design. b The weights of tumor-bearing mice of each group (6 Gy, n = 5, mean ± SD). c Relative tumor volume of each group (6 Gy, n = 5, mean ± SD, triple asterisks indicate P < 0.001 according to Student’s two tailed t-test). d H&E staining, Ki67 staining and TUNEL staining of tumor sections. Scale bar: 100 μm