Reversal of Tumour Drug Resistance with Monoclonal Antibodies
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Emergence of drug resistance is a major problem in cancer chemotherapy. P-glycoprotein, a product of the MDR1 gene, plays an important role in multidrug resistance. Since P-glycoprotein is expressed on the tumour cell surface, therapeutic application of monoclonal antibodies (mAbs) against P-glycoprotein has been considered. Anti-P-glycoprotein mAbs enhance immune responses against multidrug-resistant tumours expressing P-glycoprotein, and also inhibit the transport function of P-glycoprotein. Accordingly, selective elimination of multidrug-resistant tumours has been demonstrated in vitro and in vivo. Although there remain many questions to be solved, selective targeting of multidrug-resistant tumours by anti-P-glycoprotein mAbs is a promising strategy for overcoming multidrug resistance.
KeywordsAdis International Limited Multidrug Resistance Vinca Alkaloid Anti Tumour Drug Multidrug Transporter
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