Increased expression of monocyte chemotactic protein-1 in the endometrium of women with endometriosis

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This study found increased expression of monocyte chemotactic protein-1 in the endometrium of women diagnosed with endometriosis.

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This study investigated the expression of monocyte chemotactic protein-1 (MCP-1) in the intrauterine endometrium of women with endometriosis compared to controls. Using immunohistochemistry and in situ hybridization, researchers found that MCP-1 protein and mRNA levels were significantly elevated in endometrial glands across all phases of the menstrual cycle. The up-regulation varied according to the clinical stage of the disease, suggesting a link between disease severity and cytokine expression. These results indicate pathophysiological changes in the eutopic endometrium, positioning MCP-1 as a key mediator potentially involved in recruiting peritoneal macrophages during endometriosis pathogenesis. This paper is centrally about endometriosis — specifically examining molecular markers within the uterine lining associated with the disease.

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Abstract

The pathogenesis of endometriosis, a disease widely believed to arise from an aberrant growth of endometrial tissue outside the uterus, is still unclear. We have previously observed that cytokine-stimulated endometrial cells of women with endometriosis secrete in vitro increased amounts of monocyte chemotactic protein-1 (MCP-1). This factor may be important in the recruitment and activation of peritoneal macrophages observed in endometriosis patients. The present study reports that, in the presence of the disease, such an up-regulation of MCP-1 expression arises in vivo and can be encountered in situ in the intrauterine endometrium. In women with endometriosis, MCP-1 expression was elevated in endometrial glands, both at the level of the protein (immunohistochemistry) and the mRNA (in situ hybridization). This was observed throughout the menstrual cycle and varied according to the stage of the disease. These findings strongly argue in favor of the presence of pathophysiological changes in the eutopic endometrium of patients with endometriosis and make plausible MCP-1 as a key effector cell mediator involved in the pathogenesis of the disease.
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Abstract The pathogenesis of endometriosis, a disease widely believed to arise from an aberrant growth of endometrial tissue outside the uterus, is still unclear. We have previously observed that cytokine-stimulated endometrial cells of women with endometriosis secrete in vitro increased amounts of monocyte chemotactic protein-1 (MCP-1). This factor may be important in the recruitment and activation of peritoneal macrophages observed in endometriosis patients. The present study reports that, in the presence of the disease, such an up-regulation of MCP-1 expression arises in vivo and can be encountered in situ in the intrauterine endometrium. In women with endometriosis, MCP-1 expression was elevated in endometrial glands, both at the level of the protein (immunohistochemistry) and the mRNA (in situ hybridization). This was observed throughout the menstrual cycle and varied according to the stage of the disease. These findings strongly argue in favor of the presence of pathophysiological changes in the eutopic endometrium of patients with endometriosis and make plausible MCP-1 as a key effector cell mediator involved in the pathogenesis of the disease. Full text PDFImages in this article Selected References These references are in PubMed. This may not be the complete list of references from this article. - Akoum A., Lemay A., Brunet C., Hébert J. Cytokine-induced secretion of monocyte chemotactic protein-1 by human endometriotic cells in culture. The Groupe d'Investigation en Gynécologie. Am J Obstet Gynecol. 1995 Feb;172(2 Pt 1):594–600. doi: 10.1016/0002-9378(95)90578-2. [DOI] [PubMed] [Google Scholar] - Akoum A., Lemay A., McColl S. R., Paradis I., Maheux R. Increased monocyte chemotactic protein-1 level and activity in the peripheral blood of women with endometriosis. Le Groupe d'Investigation en Gynécologie. 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endometriosis

MeSH descriptors

Chemokine CCL2 Endometriosis Endometrium Adult Adult Chemokine CCL2 Chemokine CCL2 Chemokine CCL2 Endometriosis Endometriosis Endometriosis Endometriosis Endometrium Endometrium Female Female Humans Humans Immunohistochemistry Immunohistochemistry

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