A role for lipoxin A4 as an anti-inflammatory mediator in the human endometrium
| Autor: | Sheila C. Boddy, Kurt J. Sales, Fiona C. Denison, Henry N. Jabbour, Linsay J. Macdonald |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Embryology
medicine.medical_specialty Lipoxin Stromal cell media_common.quotation_subject Decidua Obstetrics and Gynecology Inflammation Cell Biology Biology Endometrium Proinflammatory cytokine Formyl peptide receptor 2 chemistry.chemical_compound Endocrinology medicine.anatomical_structure Reproductive Medicine chemistry Internal medicine medicine medicine.symptom reproductive and urinary physiology Menstrual cycle media_common |
| Zdroj: | REPRODUCTION. 142:345-352 |
| ISSN: | 1741-7899 1470-1626 |
| DOI: | 10.1530/rep-11-0021 |
| Popis: | Lipoxin A4is 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 A4and 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 A4by ELISA revealed no difference in its levels across the menstrual cycle but an elevation in early pregnancy (P4was regulated by human chorionic gonadotrophin (hCG) during early pregnancy, because treatment of human decidua tissue with hCG increased lipoxin A4release (P4can 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 A4and its receptor FPR2/ALX can regulate inflammatory events in the human endometrium and decidua of early pregnancy. |
| Databáze: | OpenAIRE |
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