© 1999 by Oxford University Press
Journal of the National Cancer Institute, Vol. 91, No. 19, 1604-1605,
October 6, 1999
© 1999 Oxford University Press
EDITORIALS |
Lung Resistance-Related Protein: Determining Its Role in Multidrug Resistance
Affiliations of authors: W. S. Dalton, H. Lee Moffitt Cancer Center, University of South Florida, Tampa; R. J. Scheper, Free University Hospital, Amsterdam, The Netherlands.
Correspondence to: William S. Dalton, M.D., Ph.D., H. Lee Moffitt Cancer Center, University of South Florida, 12902 Magnolia Dr., Tampa, FL 33612.
Resistance to cytotoxic drugs remains a major obstacle for the
successful treatment of cancer (1). Over the past two decades,
a great deal of information has emerged that elucidates how cancer
cells become drug resistant. At least one prominent drug-resistance
mechanism in cancer cells is the reduction of intracellular drug
concentration at the putative drug target. There are at least two
mechanisms capable of reducing drug concentration at the target site.
The most obvious mechanism involves an overall reduction in
intracellular drug concentration by reducing drug uptake or enhancing
drug efflux. A second mechanism could be a redistribution of drug
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