The cell death of Z138c-TMP2 and Z138c-miRNA-17-92s after different doses of radiation. The cell death ratios of Z138c-TMP2 cells and Z138c-miRNA-17-92 cells were evaluated using traditional PI staining assay. A) one representative of cell death as detected by 1% Hochest33324 staining at 3 days after radiation. B) one representative of cell death as detected by FCM at 3 days after radiation. C) a summary of cell death ratios in Z138c-TMP2 and Z138c-miRNA-17-92 cells. Data have been presented as mean ± s.d. (N = 5). One representative of three experiments has been shown. *P < 0.05, **P < 0.01 or ***P < 0.001 as compared among the identical groups.