Cited by 42Estrogen and related hormone effectsEffects and risks of endocrine disrupting chemicalsReceptor Mechanisms and Signaling

Activation of estrogen receptor-α by the anion nitrite

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Veselik, David J., Divekar, Shailaja, Dakshanamurthy, Sivanesan, Storchan, Geoffrey B., Turner, Jasmine M.A., Graham, Kelly L., Huang, Li, Stoica, Adriana +1 more·2008·Cancer Research

Abstract

In this study, the ability of nitrite and nitrate to mimic the effects of estradiol on growth and gene expression was measured in the human breast cancer cell line MCF-7. Similar to estradiol, treatment of MCF-7 cells with either 1 mumol/L nitrite or 1 mumol/L nitrate resulted in approximately 4-fold increase in cell growth and 2.3-fold to 3-fold increase in progesterone receptor (PgR), pS2, and cathepsin D mRNAs that were blocked by the antiestrogen ICI 182,780. The anions also recruited estrogen receptor-alpha (ERalpha) to the pS2 promoter and activated exogenously expressed ERalpha when tested in transient cotransfection assays. To determine whether nitrite or nitrate was the active anion, diphenyleneiodonium was used to inhibit oxidation/reduction reactions in the cell. The ability of diphenyleneiodonium to block the effects of nitrate, but not nitrite, on the induction of PgR mRNA and the activation of exogenously expressed ERalpha suggests that nitrite is the active anion. Concentrations of nitrite, as low as 100 nmol/L, induced a significant increase in PgR mRNA, suggesting that physiologically and environmentally relevant doses of the anion activate ERalpha. Nitrite activated the chimeric receptor Gal-ER containing the DNA-binding domain of GAL-4 and the ligand-binding domain of ERalpha and blocked the binding of estradiol to the receptor, suggesting that the anion activates ERalpha through the ligand-binding domain. Mutational analysis identified the amino acids Cys381, His516, Lys520, Lys529, Asn532, and His547 as important for nitrite activation of the receptor.

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Crossref · 10.1158/0008-5472.can-07-2783

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Research works printed but not linked: 2

  1. Stoica A, Pentecost E, Martin MB. Effects of selenite on estrogen receptor-a expression and activity in MCF-7 breast cancer cells. J Cell Biochem 2000;79:282-92.
  2. Reese JC, Katzenellenbogen BS. Mutagensis of cysteines in the hormone binding domain of the human estrogen receptor. J Biol Chem 1991;266:10880-7.

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Authors
Veselik, D. J., Divekar, S., Dakshanamurthy, S., Storchan, G. B., Turner, J. M. A., Graham, K. L., Huang, L., Stoica, A., & Martin, M. B.
Affiliations
  • 1Biochemistry and Molecular and Cellular Biology, Departments of
  • 2Oncology, and
  • Georgetown University (US)
Venue
Cancer Research
Published
2008-05-15
Volume
68
Issue
10
Pages
3950-3958
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2146393174
Cited by
42
References
48
Citations by year
2026: 1 · 2025: 1 · 2024: 5 · 2023: 3 · 2022: 1 · 2021: 2 · 2020: 2 · 2019: 1 · 2018: 2 · 2017: 4 · 2016: 4 · 2015: 1 · 2014: 1 · 2013: 2 · 2012: 2
FWCI
1.90
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (CA51008)
  • National Cancer Institute (P30 CA-51008, P50-CA-58185, CA-51008, U54CA100970, P50CA058185, U54 CA0100970, P30CA051008)
  • National Institute of Environmental Health Sciences (ES 11745, R01ES011745)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Effects and risks of endocrine disrupting chemicals
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
nitrite, nitrate, estrogen receptor alpha, estrogen receptor activation, breast cancer, MCF-7 cells, progesterone receptor, pS2 gene expression, cathepsin D, fulvestrant, diphenyleneiodonium, ligand-binding domain, estradiol binding
MeSH terms
Fulvestrant, Amino Acids, Animals, Anions, Cathepsin D, Chlorocebus aethiops, Estradiol, Humans, Molecular Conformation, Nitrites, Promoter Regions, Genetic, Receptors, Progesterone, Transfection, COS Cells, Cell Line, Tumor, Estrogen Receptor alpha

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