目的揭示急性早幼粒细胞白血病产生维甲酸耐药的机制，探讨耐药性逆转的方法。

Objective to study the mechanism of drug resistance of APL to ATRA and the methods of reversion.

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目的：研究卡维地洛对人膀胱癌耐药细胞株BIU-87/ADM的多药耐药性逆转作用。

Purpose:To study the reversal effects on multidrug resistance in multidrug-resistent bladder cell lines BIU-87/ADM.

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目的合成阿霉素聚氰基丙烯酸异丁酯纳米粒，观察其对阿霉素耐受性细胞株K5 6 2 （K5 6 2 /DOX）耐药性逆转效果并探讨可能机制。

Objective To investigate the reversing effect of doxorubicin-loaded polyisobultylcyanoacrylate nanoparticles (NP-DOX) on multidrug resistant cell line K562/DOX and the possible mechanism.

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