Figure 2

The different proliferative ability of Z138c-TMP2 and Z138c-miRNA-17-92 cell lines after different doses of radiation. The cell proliferation of Z138c cells expressing miRNA-17-92 or control vector was detected using a ³H-TdR incorporation assay after different doses of irradiation. A) the cell proliferation of Z138c-TMP2 or Z138c-miRNA-17-92 cells after different doses of radiation. B) the cell proliferation of cells without radiation. C) the cell proliferation of Z138c-TMP2 or Z138c-miRNA-17-92 cells at different days after 2 Gy radiation. D) the cell proliferation of cells at different days after 4 Gy radiation. 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.