Cited by 99Estrogen and related hormone effectsGenomics and Chromatin DynamicsEpigenetics and DNA Methylation

Regulation of GREB1 Transcription by Estrogen Receptor α through a Multipartite Enhancer Spread Over 20 kb of Upstream Flanking Sequences

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Deschênes, Julie, Bourdeau, Veéronique, White, John H., Mader, Sylvie·2007·Journal of Biological Chemistry

Abstract

Estrogen receptors activate transcription in part through direct interactions with specific DNA motifs, called estrogen response elements (EREs). Here we show that the strong and sustained induction of the gene regulated in breast cancer 1 (GREB1), a gene of unknown function that has been previously suggested to play a role in the effects of estradiol on breast cancer cell proliferation (Rae, J. M., Johnson, M. D., Scheys, J. O., Cordero, K. E., Larios, J. M., and Lippman, M. E. (2005) Breast Cancer Res. Treat 92, 141-149), is mediated by binding of estrogen receptor alpha (ERalpha) to three consensus EREs spread over approximately 20 kb of upstream flanking sequences. In addition to ERalpha, coactivator SRC-3, acetylated histones and phosphorylated RNA polymerase II (P-polII) were detected on all three EREs in the presence of estrogen, while basal recruitment of ERalpha and P-polII was observed only on the proximal element. Chromatin loops were formed between each ERE and the GREB1 transcriptional start site in the presence of estrogen but not of a total antiestrogen. Furthermore, estradiol induced physical association between EREs, suggesting that these elements function as a potent multipartite enhancer to regulate GREB1 transcription.

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  1. Pike, M. C., Spicer, D. V., Dahmoush, L., and Press, M. F. (1993) Epidemiol. Rev. 15, 17-35

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Authors
Deschênes, J., Bourdeau, V., White, J. H., & Mader, S.
Affiliations
  • Institute for Research in Immunology and Cancer (CA)
  • McGill University (CA)
Corresponding author
Mader, Sylvie
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2007-06
Volume
282
Issue
24
Pages
17335-17339
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2015104432
Cited by
99
References
33
Citations by year
2025: 3 · 2024: 1 · 2023: 2 · 2022: 1 · 2021: 4 · 2020: 7 · 2019: 4 · 2018: 5 · 2017: 2 · 2016: 9 · 2015: 6 · 2014: 8 · 2013: 7 · 2012: 8
FWCI
3.93
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Canadian Imperial Bank of Commerce
  • Canadian Institutes of Health Research
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
GREB1, estrogen receptor alpha, estrogen response element, estradiol, transcriptional regulation, chromatin looping, histone acetylation, RNA polymerase II phosphorylation, breast cancer
MeSH terms
Enhancer Elements, Genetic, Estradiol, Gene Expression Regulation, Histones, Humans, Neoplasm Proteins, Transcription, Genetic, RNA, Small Interfering, Cell Line, Tumor, Estrogen Receptor alpha

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