Peritoneal endometriosis is an inflammatory disease

Jean‐Christophe Lousse, Jean-Christophe Lousse, Anne Van Langendonckt, Sylvie Defrere, Reinaldo Gonzalez Ramos, Sebastien Colette, Jacques Donnez
Frontiers in bioscience (Elite edition) · 2011 · vol. E4(1) , pp. 23 · doi:10.2741/358 · PMID:22201853 · W2037339155
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⚙ AI-generated summary by claude@2026-06, 2026-06-06 ⓘ

This paper explores the roles of iron, nuclear factor-kappa B, and prostaglandins in peritoneal endometriosis pathogenesis, emphasizing peritoneal macrophages and oxidative stress in this inflammatory disease.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-06 · read from full text ⓘ

This review discusses peritoneal endometriosis as a chronic inflammatory disease, focusing on increased peritoneal macrophages and macrophage-secreted products, and on how inflammation contributes to pain and infertility as well as to the development of peritoneal lesions. It synthesizes evidence that oxidative stress in the peritoneal environment—driven by reactive oxygen species produced after pro-oxidants such as heme and iron enter during retrograde menstruation—can promote cellular damage and proinflammatory gene expression via nuclear factor-kappa B activation, including regulation of prostaglandin biosynthetic enzymes and elevated prostaglandin concentrations. The paper uses patient biopsy data alongside in vitro and in vivo studies, and it explicitly frames its conclusions as a discussion of available data and potential molecular interactions rather than a single new experiment. This paper is centrally about endometriosis — it specifically reviews inflammation in peritoneal endometriosis, highlighting macrophages, oxidative stress/iron, NF-kappa B, and prostaglandins in pathogenesis.

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Abstract

Peritoneal endometriosis is a chronic inflammatory disease characterized by increased numbers of peritoneal macrophages and their secreted products. Inflammation plays a major role in pain and infertility associated with endometriosis, but is also extensively involved in the molecular processes that lead to peritoneal lesion development. Peritoneal oxidative stress is currently thought to be a major constituent of the endometriosis-associated inflammatory response. Excessive production of reactive oxygen species, secondary to peritoneal influx of pro-oxidants such as heme and iron during retrograde menstruation, may induce cellular damage and increased proinflammatory gene expression through nuclear factor-kappa B activation. In particular, prostaglandin biosynthetic enzyme expression is regulated by this transcriptional factor, and increased peritoneal prostaglandin concentrations have been demonstrated in endometriosis. In the light of available data collected from patient biopsies, as well as in vitro and in vivo studies, the respective involvement and potential molecular interactions of iron, nuclear factor-kappa B and prostaglandins in the pathogenesis of endometriosis are explored and discussed. The key role of peritoneal macrophages is emphasized and potential therapeutic targets are examined.
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Abstract

Peritoneal endometriosis is a chronic inflammatory disease characterized by increased numbers of peritoneal macrophages and their secreted products. Inflammation plays a major role in pain and infertility associated with endometriosis, but is also extensively involved in the molecular processes that lead to peritoneal lesion development. Peritoneal oxidative stress is currently thought to be a major constituent of the endometriosisassociated inflammatory response. Excessive production of reactive oxygen species, secondary to peritoneal influx of pro-oxidants such as heme and iron during retrograde menstruation, may induce cellular damage and increased proinflammatory gene expression through nuclear factorkappa B activation. In particular, prostaglandin biosynthetic enzyme expression is regulated by this transcriptional factor, and increased peritoneal prostaglandin concentrations have been demonstrated in endometriosis. In the light of available data collected from patient biopsies, as well as in vitro and in vivo studies, the respective involvement and potential molecular interactions of iron, nuclear factor-kappa B and prostaglandins in the pathogenesis of endometriosis are explored and discussed. The key role of peritoneal macrophages is emphasized and potential therapeutic targets are examined.

Keywords

- Peritoneal endometriosis - Inflammation - Oxidative Stress - iron - NF-kappa B - Prostaglandins - Macrophages - Medical Treatment - Review

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Condition tags

endometriosisinfertility

MeSH descriptors

Endometriosis Inflammation Peritoneal Diseases Endometriosis Endometriosis Female Humans Inflammation Inflammation Iron Iron NF-kappa B NF-kappa B Peritoneal Diseases Peritoneal Diseases Prostaglandins Prostaglandins

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