Objective To study the alteration of bax, bcl-2, p170 expressing and the second effect on the adriamycin (ADR) induced cytotoxicity in acquired tamoxifen (TAM)-resistant MCF-7 cell line.

• 目的探讨获得性他莫昔芬(TAM)耐受MCF-7细胞bax、bcl-2、p170表达的变化及其对阿霉素(ADR)敏感性的影响。