METHODS They were compared that the rates of apoptosis in human breast cancer cell line MCF 7/ADR which were reistant to adriamycin(Dox) and their parental sensitive cell line MCF 7 induced by Dox in the presence or absence of TTD.

• 方法MDR细胞株MCF－7/Adr与其相应的敏感株MCF－7进行对比研究。 比较粉防己碱对阿霉素（Dox）诱导MDR细胞及其相应的敏感株的凋亡作用。