P-Glycoprotein Is More Efficient at Limiting Uptake than Inducing Efflux of Colchicine and Vinblastine in HL-60 Cells


Purpose. To investigate the role of the P-glycoprotein (P-gp) drug efflux pump in the intracellular disposition of colchicine and vinblastine. Methods. Uptake and efflux kinetics were studied in vitro in human lymphocytes and in HL-60 cells with or without the P-gp modulator, verapamil. Results. In human lymphocytes, colchicine was slowly taken up (uptake… (More)
DOI: 10.1023/A:1011914902121


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