IC50 values for mitoxantrone in HeLa and HeLa/SN100 cells in the presence of α-adrenoceptor antagonists.

Each value shows the mean ± S.E. (n = 4).Relative sensitivity: the ratio of IC50 values for mitoxantrone in the control divided by that in the groups treated with α-adrenoceptor antagonists.*and**: significantly different from the respective control at pp所有数值均以平均值±标准误（Standard Error，S.E.）表示，样本量n=4。 相对敏感性：指对照组中米托蒽醌（mitoxantrone）的半数抑制浓度（half maximal inhibitory concentration，IC50）与α肾上腺素受体拮抗剂（α-adrenoceptor antagonists）处理组中对应数值的比值。 *与**：与各自对应的对照组相比在pp显著性水平下具有显著性差异。