Figure 3

(A)Annexin V and PI (propidium iodide) staining was performed, followed by flow cytometry. (B) The percentage of apoptotic cells was counted (Fig. 3A, areas 2 and 3). Almost 3–4% apoptosis was found in the control and Ubenimex groups. In the radiation and combined-treatment groups there was a high percentage of apoptosis. Combined treatment with Ubenimex and radiation resulted in a higher percentage of apoptosis than in the radiation alone group (p < 0.05). Errors bar represent the standard error of the mean.