Cited by 1,950Estrogen and related hormone effectsInflammatory mediators and NSAID effectsMenopause: Health Impacts and Treatments

The complex role of estrogens in inflammation

Straub, Rainer H.·2007·Endocrine Reviews

Abstract

There is still an unresolved paradox with respect to the immunomodulating role of estrogens. On one side, we recognize inhibition of bone resorption and suppression of inflammation in several animal models of chronic inflammatory diseases. On the other hand, we realize the immunosupportive role of estrogens in trauma/sepsis and the proinflammatory effects in some chronic autoimmune diseases in humans. This review examines possible causes for this paradox. This review delineates how the effects of estrogens are dependent on criteria such as: 1) the immune stimulus (foreign antigens or autoantigens) and subsequent antigen-specific immune responses (e.g., T cell inhibited by estrogens vs. activation of B cell); 2) the cell types involved during different phases of the disease; 3) the target organ with its specific microenvironment; 4) timing of 17β-estradiol administration in relation to the disease course (and the reproductive status of a woman); 5) the concentration of estrogens; 6) the variability in expression of estrogen receptor α and β depending on the microenvironment and the cell type; and 7) intracellular metabolism of estrogens leading to important biologically active metabolites with quite different anti- and proinflammatory function. Also mentioned are systemic supersystems such as the hypothalamic-pituitary-adrenal axis, the sensory nervous system, and the sympathetic nervous system and how they are influenced by estrogens. This review reinforces the concept that estrogens have antiinflammatory but also proinflammatory roles depending on above-mentioned criteria. It also explains that a uniform concept as to the action of estrogens cannot be found for all inflammatory diseases due to the enormous variable responses of immune and repair systems.

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Crossref · 10.1210/er.2007-0001

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Authors
Straub, R. H.
Affiliations
University Hospital Regensburg (DE)
Corresponding author
Straub, Rainer H.
Venue
Endocrine Reviews
Published
2007-08-01
Volume
28
Issue
5
Pages
521-574
ISSN
  • 0163-769X (ISSN-L)
  • 1945-7189
OpenAlex
W2159203244
Cited by
1,950
References
605
Citations by year
2026: 118 · 2025: 157 · 2024: 129 · 2023: 136 · 2022: 137 · 2021: 196 · 2020: 123 · 2019: 100 · 2018: 100 · 2017: 98 · 2016: 77 · 2015: 104 · 2014: 81 · 2013: 71 · 2012: 83
FWCI
5.84
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrine Reviews (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Health Sciences › Medicine › Pharmacology › Inflammatory mediators and NSAID effects
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Menopause: Health Impacts and Treatments
Keywords
estrogen, inflammation, immunomodulation, estrogen receptor alpha, estrogen receptor beta, estradiol, estrogen metabolism, bone resorption, autoimmune disease, sepsis, trauma (physical injury), T cell activation, B cell activation, hypothalamic-pituitary-adrenal axis, sympathetic nervous system, sensory nervous system, reproductive status
MeSH terms
Animals, Autoimmune Diseases, Cell Movement, Estrogens, Female, Humans, Inflammation, Leukocytes, Neovascularization, Pathologic, Pregnancy, Receptors, Estrogen, Estrogen Replacement Therapy, Apoptosis, Mice

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