Fig. 3
The effects of X-ray irradiation on PKC-ι and p-PKC-ι expression levels. a and b – Photos of the western blot gels showing the PKC-ι and p-PKC-ι expression levels after C6 and U251 cells were exposed to X-ray irradiation at the indicated doses. c and d – Results for C6 and U251 showing thep-PKC-ι level normalized to total PKC-ι. The p-PKC-ι expression levels became lower with increasing X-ray irradiation. Statistical data were analyzed using SPSS 17.0. *p < 0.05, **p < 0.01. e and f – Pearson correlation analysis was performed to determine the correlation between p-PKC-ι and apoptotic rate. A negative linear correlation was found. The linear correlation coefficients were determined as rC6 = − 0.931 and rU251 = − 0.825