Figure 6.

Number of detected γH2AX clusters in MCF-7 breast cancer cell nuclei (“MCF-7”) in comparison to cell nuclei of CCD-1059SK fibroblasts (“Fibis”). The columns of each panel represent the mean values calculated from 20 nuclei each. The error bars on top of the column indicate the standard deviation. For each time step after the irradiation process, the data are given for cells exposed to ionizing radiation of 2 Gy (left) and for cells subjected to the same culturing procedure but not to radiation treatment (right). Level of significance between the corresponding values: *** = 0.1%. For further details see text.