Fig. 5From: Combining carbon ion irradiation and non-homologous end-joining repair inhibitor NU7026 efficiently kills cancer cellsSurvival fraction after radiation exposure with NU7026 or B02 treatment in MEF. 20 μM NU7026 treatment (a–c), 20 μM B02 treatment (d–f). Wild-type cells (a and d), Lig4-KO cells (b and e), Rad54-KO cells (c and f). The presented results are the mean and SD of three independent experiments. Data were statistically evaluated with the student’s t test with comparisons between irradiation alone and other treated groups (* p < 0.05; ** p < 0.01; NS, non-significant)Back to article page