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A multidrug resistance transporter from human MCF-7 breast cancer cells

Open access
Doyle, L. Austin, Yang, Weidong, Abruzzo, Lynne V., Krogmann, Tammy, Gao, Yongming, Rishi, Arun K., Ross, Douglas D.·1998·Proceedings of the National Academy of Sciences

Abstract

MCF-7/AdrVp is a multidrug-resistant human breast cancer subline that displays an ATP-dependent reduction in the intracellular accumulation of anthracycline anticancer drugs in the absence of overexpression of known multidrug resistance transporters such as P glycoprotein or the multidrug resistance protein. RNA fingerprinting led to the identification of a 2.4-kb mRNA that is overexpressed in MCF-7/AdrVp cells relative to parental MCF-7 cells. The mRNA encodes a 663-aa member of the ATP-binding cassette superfamily of transporters that we term breast cancer resistance protein (BCRP). Enforced expression of the full-length BCRP cDNA in MCF-7 breast cancer cells confers resistance to mitoxantrone, doxorubicin, and daunorubicin, reduces daunorubicin accumulation and retention, and causes an ATP-dependent enhancement of the efflux of rhodamine 123 in the cloned transfected cells. BCRP is a xenobiotic transporter that appears to play a major role in the multidrug resistance phenotype of MCF-7/AdrVp human breast cancer cells.

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Metadata

Authors
Doyle, L. A., Yang, W., Abruzzo, L. V., Krogmann, T., Gao, Y., Rishi, A. K., & Ross, D. D.
Venue
Proceedings of the National Academy of Sciences
Published
1998-12-22
Volume
95
Issue
26
Pages
15665-15670
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2142024216
Cited by
2,322
References
1
FWCI
14.49
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: A multidrug resistance transporter from human MCF-7 breast cancer cells. https://app.cochat.ai/papers/10.1073/pnas.95.26.15665
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Doyle, L. A., Yang, W., Abruzzo, L. V., Krogmann, T., Gao, Y., Rishi, A. K., & Ross, D. D. (1998). A multidrug resistance transporter from human MCF-7 breast cancer cells. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.95.26.15665

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