Figure 5From: DNMT (DNA methyltransferase) inhibitors radiosensitize human cancer cells by suppressing DNA repair activityWestern blot analysis of cleaved caspase-3. The cells were treated with a combination of three different DNMT inhibitors and 6 Gy of radiation. Increased cleaved caspase-3 protein level was observed in cells treated with a combination of psammaplin A and 6 Gy of radiation in the A549 cells.Back to article page