Cited by 158Mast cells and histamineEstrogen and related hormone effectsAsthma and respiratory diseases

Estradiol Augments while Tamoxifen Inhibits Rat Mast Cell Secretion

Vliagoftis, H., Dimitriadou, V., Boucher, W., Rozniecki, J.J., Correia, I., Raam, S., Theoharides, T.C.·2009·International Archives of Allergy and Immunology

Abstract

Mast cells have been studied extensively for their involvement in allergic reactions, where they secrete numerous powerful mediators in response to immunoglobulin E and specific antigens. However, they are also triggered by neuropeptides, they have been found in close contact with neurons, and they are activated in diseases such as angioedema, interstitial cystitis and irritable bowel disease, the prevalence of which is much higher in women. When tested on purified rat peritoneal mast cells, 17β-estradiol augmented secretion of histamine and serotonin, starting at 1 μM and in a dose-dependent manner, whether stimulated by the mast cell secretagogue compound 48/80 or the neuropeptide substance P. However, 17β-estradiol did not augment mast cell secretion stimulated by immunoglobulin E and specific antiserum indicating that immunologic stimulation is under different regulation. Testosterone inhibited secretion induced by compound 48/80. Tamoxifen, an estrogen receptor antagonist used in the treatment of breast cancer, inhibited serotonin and histamine release from purified rat peritoneal mast cells triggered by compound 48/80 or substance P. Tamoxifen also inhibited the increase in intracellular free Ca2+ originating from an influx of extracellular Ca2+ in response to compound 48/80. Moreover, tamoxifen antagonized the synergistic effect of phorbol myristate and the cation ionophore A23187 on mast cell secretion, suggesting that tamoxifen’s inhibition may be due to regulation of protein kinase C activity. Tamoxifen may, therefore, have a beneficial effect in other neuroimmunoendocrine disorders both through estrogen receptor blockade and inhibition of mast cell secretion.

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Crossref · 10.1159/000236217

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Authors
Vliagoftis, H., Dimitriadou, V., Boucher, W., Rozniecki, J. J., Correia, I., Raam, S., & Theoharides, T. C.
Affiliations
Tufts University (US)
Venue
International Archives of Allergy and Immunology
Publisher
S. Karger AG
Published
2009-09-02
Volume
98
Issue
4
Pages
398-409
ISSN
  • 1018-2438 (ISSN-L)
  • 1423-0097
OpenAlex
W1963785160
Cited by
158
References
0
Citations by year
2026: 3 · 2024: 3 · 2023: 3 · 2022: 4 · 2021: 5 · 2020: 3 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 5 · 2015: 8 · 2014: 3 · 2013: 2 · 2012: 5
FWCI
4.31
Type
journal article
Language
en
Open access
closed
Locations
  • International Archives of Allergy and Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01dk042409-03)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK42409)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Mast cells and histamine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Health Sciences › Medicine › Physiology › Asthma and respiratory diseases
Keywords
mast cell secretion, estradiol, tamoxifen, estrogen receptor antagonism, histamine release, serotonin release, compound 48/80, substance P, intracellular calcium, protein kinase C, testosterone, peritoneal mast cells, angioedema, irritable bowel disease
MeSH terms
Animals, Calcium, Estradiol, Exocytosis, Histamine Release, Male, Mast Cells, Protein Kinase C, Receptors, Estrogen, Serotonin, Tamoxifen, Testosterone, Cell Degranulation, Rats, Sprague-Dawley, Rats, In Vitro Techniques

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