Multidrug resistance (MDR) to antitumor agents represents a significant challenge to effective chemotherapy. The use of MDR modulators is a promising approach to overcome the undesired MDR phenotype. The more effective MDR modulators are urgently needed for clinical use. This review focuses on literatures published in 1998-2001.
Keywords: Multidrug Resistance, chemotherapy, MDR phenotype, antitumor agents