Fig. 7From: Identification of genes inducing resistance to ionizing radiation in human rectal cancer cell lines: re-sensitization of radio-resistant rectal cancer cells through down regulating NDRG1Six hours after 12 Gy irradiation, immunocytochemistry revealed that both active forms of caspase-3 and phosphorylated gamma H2AX were expressed in SNU-503, SNU-503R80Gy and SNU-503R80Gy shNDRG1Back to article page