| Literature DB >> 2390489 |
H J Broxterman1, H M Pinedo, G J Schuurhuis, J Lankelma.
Abstract
Cyclosporin A (Sandimmune) rapidly induced an increase in daunorubicin accumulation in multidrug-resistant human ovarian carcinoma cells (2780AD) and was more potent than verapamil. Steady-state 3H-cyclosporin A accumulation at 37 degrees C in 2780AD cells was 60-70% of that in the sensitive A2780 cells. A rapid increase of ATP consumption and lactate production was induced in 2780AD cells by verapamil, but not by cyclosporin A. These results suggest that the interactions of cyclosporin A and verapamil with P-glycoprotein, which leads to inhibition of drug transport, have a different mechanistic basis.Entities:
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Year: 1990 PMID: 2390489 PMCID: PMC1971735 DOI: 10.1038/bjc.1990.234
Source DB: PubMed Journal: Br J Cancer ISSN: 0007-0920 Impact factor: 7.640