Figure 3
From: Enhancement of autophagy is a potential modality for tumors refractory to radiotherapy
Frequencies of annexin V-positive cells induced by 10 Gy of a single dose of X-rays or fractionated X-rays. Basal levels of annexin V-positive cells in radioresistant HepG2-8960-R were higher than those in parental HepG2. (a) Annexin V-positive cells in HepG2 and HepG2-8960-R increased after acute exposure, however, induction level of annexin V-positive cells in HepG2 was higher than that in HepG2-8960-R. (b) Statistically significant induction of apoptosis was not observed both in HepG2 and HepG2-8960-R after exposure to fractionated 2 Gy of X-rays. Mean±S.D. of three independent experiments. *P<0.05 compared with control
