Figure 1:

1a. MDA-MB-468 Percent Cell Death. Cell death did not differ between MDA-MB-468 breast cancer cells pretreated with WR-1065 and their untreated controls at 10 Gy and 20 Gy. Breast cancer cells receiving radio-protective pretreatment reached the same degree of cell death as untreated breast cancer cells. (10 Gy: 54.6% vs. 52.8%, p>0.05; 20 Gy: 63.1% vs. 60.4%, p>0.05) 1b. MDA-MB-468 Microscopic Images. There was decreased breast cancer cell density at 10 Gy compared to 0 Gy. There was even further reduction in cells at 20 Gy compared to 10 Gy. No remarkable difference in cell density was observed between breast cancer cells pre-treated with WR-1065 compared to the controls at 0 Gy, 10 Gy, and 20 Gy, respectively.