Cited by 65Reproductive System and PregnancyFatty Acid Research and HealthInflammatory mediators and NSAID effects

A role for lipoxin A4 as an anti-inflammatory mediator in the human endometrium

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Macdonald, Linsay J, Boddy, Sheila C, Denison, Fiona C, Sales, Kurt J, Jabbour, Henry N·2011·Reproduction

Abstract

Lipoxin A4 is a lipid mediator that elicits anti-inflammatory and pro-resolution actions via its receptor, formyl peptide receptor 2 (FPR2/ALX). In this study, we aimed to investigate the expression and potential role of lipoxin A4 and FPR2/ALX in the regulation of inflammation associated with cyclical remodeling of the human endometrium across the menstrual cycle and during early pregnancy. Using quantitative RT-PCR analysis, we found that FPR2/ALX expression is upregulated during the menstrual phase of the cycle and in decidua tissue from the first trimester of pregnancy. We localized the site of expression of FPR2/ALX in menstrual phase endometrium and first-trimester decidua tissue to glandular epithelial cells and cells within the stromal compartment, including cells lining the blood vessels and immune cells. Measurement of serum lipoxin A4 by ELISA revealed no difference in its levels across the menstrual cycle but an elevation in early pregnancy (P<0.001). We found that lipoxin A4 was regulated by human chorionic gonadotrophin (hCG) during early pregnancy, because treatment of human decidua tissue with hCG increased lipoxin A4 release (P<0.01). Finally, we have shown that lipoxin A4 can suppress phorbol myristate acetate-induced expression of the inflammatory cytokines interleukin 6 and 8 in human endometrium and decidua tissue. These results demonstrate for the first time that lipoxin A4 and its receptor FPR2/ALX can regulate inflammatory events in the human endometrium and decidua of early pregnancy.

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Authors
Macdonald, L. J., Boddy, S. C., Denison, F. C., Sales, K. J., & Jabbour, H. N.
Affiliations
The Queen's Medical Research Institute (GB)
Corresponding author
Jabbour, Henry N
Venue
Reproduction
Published
2011-08-01
Volume
142
Issue
2
Pages
345-352
ISSN
  • 1470-1626 (ISSN-L)
  • 1741-7899
OpenAlex
W2097930657
Cited by
65
References
47
Citations by year
2026: 3 · 2025: 3 · 2024: 6 · 2023: 3 · 2022: 3 · 2021: 5 · 2020: 10 · 2019: 5 · 2018: 1 · 2017: 2 · 2016: 4 · 2015: 2 · 2014: 5 · 2013: 11 · 2012: 1
FWCI
2.55
Type
journal article
Language
en
Open access
Locations
  • Reproduction (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (publishedVersion, other-oa)
Funders
Medical Research Council
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Reproductive System and Pregnancy
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Pharmacology › Inflammatory mediators and NSAID effects
Keywords
lipoxin A4, FPR2/ALX, endometrium, decidua, menstrual cycle, early pregnancy, inflammation resolution, human chorionic gonadotropin, interleukin-6, interleukin-8, endometrial remodeling, lipid mediators
MeSH terms
Adult, Decidua, Endometrium, Epithelial Cells, Female, Gene Expression Regulation, Chorionic Gonadotropin, Humans, Interleukins, Menstrual Cycle, Pregnancy, Pregnancy Trimester, First, RNA, Messenger, Tetradecanoylphorbol Acetate, Stromal Cells, Inflammation Mediators, Receptors, Formyl Peptide, Lipoxins, Receptors, Lipoxin, Tissue Culture Techniques, Young Adult

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