Figure 5From: p53-independent early and late apoptosis is mediated by ceramide after exposure of tumor cells to photon or carbon ion irradiation Pearson correlations between the percentages of cells in sub-G1 after 10Gy of photon or 33.4 or 18 keV/μm carbon ion irradiation as a function of ceramide production. The comparisons are: A: radiation quality; B: cell radiosensitivity; C: p53-status; D: early and late apoptosis.Back to article page