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Cited by 217

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Identification of a Novel Estrogen Response Element in the Breast Cancer Resistance Protein ( ABCG2 ) Gene

Ee, Pui Lai Rachel, Kamalakaran, Sitharthan, Tonetti, Debra, He, Xiaolong, Ross, Douglas D., Beck, William T.·2004·Cancer Research

Abstract

The breast cancer resistance protein (BCRP) is an ATP-binding cassette half transporter that confers resistance to anticancer drugs such as mitoxantrone, anthracyclines, topotecan, and SN-38. Initial characterization of the BCRP promoter revealed that it is TATA-less with 5 putative Sp1 sites downstream from a putative CpG island and several AP1 sites (K. J. Bailey-Dell et al., Biochim. Biophys. Acta, 1520: 234–241, 2001). Here, we examined the sequence of the 5′-flanking region of the BCRP gene and found a putative estrogen response element (ERE). We showed that estrogen enhanced the expression of BCRP mRNA in the estrogen receptor (ER)-positive T47D:A18 cells and PA-1 cells stably expressing ERα. In BCRP promoter-luciferase assays, sequential deletions of the BCRP promoter showed that the region between −243 and −115 is essential for the ER effect. Mutation of the ERE found within this region attenuated the estrogen response, whereas deletion of the site completely abrogated the estrogen effect. Furthermore, electrophoretic mobility shift assays revealed specific binding of ERα to the BCRP promoter through the identified ERE. Taken together, we provide evidence herein for a novel ERE in the BCRP promoter.

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Metadata

Authors
Ee, P. L. R., Kamalakaran, S., Tonetti, D., He, X., Ross, D. D., & Beck, W. T.
Venue
Cancer Research
Published
2004-02-15
Volume
64
Issue
4
Pages
1247-1251
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2104409728
Cited by
217
References
1
FWCI
6.61
Type
journal article
Language
en
Open access
closed

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Ee, P. L. R., Kamalakaran, S., Tonetti, D., He, X., Ross, D. D., & Beck, W. T. (2004). Identification of a Novel Estrogen Response Element in the Breast Cancer Resistance Protein ( ABCG2 ) Gene. Cancer Research. https://doi.org/10.1158/0008-5472.can-03-3583

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