© 2000 by Oxford University Press
Journal of the National Cancer Institute, Vol. 92, No. 20, 1628-1629,
October 18, 2000
© 2000 Oxford University Press
EDITORIAL |
Adenosine Triphosphate-Binding Cassette Proteins and Bioavailability: "We Can Pump You Up (or Out)"
Affiliation of author: University of Pittsburgh Cancer Institute, Departments of Medicine and Pharmacology, University of Pittsburgh School of Medicine, PA.
Correspondence to: Merrill J. Egorin, M.D., University of Pittsburgh Cancer Institute, E-1040 Biomedical Sciences Tower, 200 Lothrop St., Pittsburgh, PA 15213 (e-mail: egorinmj@msx.upmc.edu).
The adenosine triphosphate-binding cassette (ABC) superfamily of proteins (18) has become a prominent and important area of research in antineoplastic pharmacology and tumor cell biology (913). The article by Jonker et al. (14) in this issue of the Journal is an excellent example of the careful types of studies being pursued in this ever-expanding area of research. Consideration of the results of this article and others like it raises fundamental issues and questions in a variety of areas almost as disparate as the various members of the ABC superfamily and the substrates they handle.
The fact that ABC proteins are inherent components of
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