To examine the possibility that (-)-epicatechin sensitizes cancer cells to radiation by inducing apoptosis, we performed Western blot analysis for pro-caspase 3 and cleaved caspase 3 in Panc-1 cells exposed for 72 hours to 0 or 20 μ (-)-epicatechin and 0 or 6 Gy of radiation. The gene discussed is CASP3; the disease is cancer.