Methods:The multi-drug resistance-associated protein(MRP),P glucose protein(Pgp) expression of cell cycle during the process of drug resistance in hepatic carcinoma MCF7 cell treated with low concentration of adriamycin were detected by flowcytometry.

• 方法:采用流式细胞术检测经低浓度的阿霉素处理后的乳腺癌细胞系MCF7的多药耐药蛋白(MRP)和P糖蛋白(Pgp)表达,探讨耐药发生机制。