Tumor necrosis factor alpha secretion by peritoneal macrophages in patients with endometriosis

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Peritoneal macrophages from endometriosis patients exhibited significantly higher TNF-α secretion than controls, correlating with disease activity and stage.

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This study examined whether peritoneal macrophages from women with endometriosis secrete higher levels of tumor necrosis factor alpha (TNF-α) and whether TNF-α secretion correlates with endometriosis activity. During infertility work-up, 100 women undergoing diagnostic laparoscopy were grouped into an endometriosis-free control group and three endometriosis groups spanning increasing rAFS stages/activity based on macroscopic assessment, and TNF-α concentrations were compared, with results also stated as being in accordance with histological findings. TNF-α secretion by peritoneal macrophages was significantly higher in patients with proven endometriosis than controls, increasing across groups (from a median 6.2 pg/ml in controls up to 200.15 pg/ml in advanced stages), and the authors concluded TNF-α may reflect both activity and stage. This paper is centrally about endometriosis — it measures TNF-α secretion by peritoneal macrophages across endometriosis stages and activity.

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Abstract

IntroductionAs a cytotoxic product of activated monocytes, macrophages, and lymphocytes, tumor necrosis factor alpha (TNF-alpha)--together with other cytokines and growth factors--is an important component in the immune response of the human organism. In addition, TNF-alpha plays a central role in neoangiogenesis. Because of its cytotoxicity with regard to several tumor cells and its motility-hindering effect on human sperm, TNF-alpha is considered to be a significant pelvic mediator of female sterility.ObjectiveThe goal of our study was to determine as to whether or not an increased TNF-alpha secretion by peritoneal macrophages (PM) can be measured in female patients with endometriosis compared with healthy subjects, and if TNF-alpha secretion can be correlated with the activity of endometriosis.MethodsDuring infertility work-up, 100 female patients underwent a diagnostic laparoscopy. In accordance with the rAFS classification as well as from the macroscopic aspect of the degree of activity of the endometriosis, the patients were divided as follows: an endometriosis-free control group with a completely normal pelvic status (n=35) and three groups with increasing stages of endometriosis (n=65). In the control group (Group 1), the TNF-alpha concentrations (median values with minimum / maximum) were 6.2 pg/ml (1.9/10.2), in Group 2 with rAFS stage I/II less active endometriosis 56.33 pg/ml (39.5/71.2), in Group 3 with rAFS stage I/II but highly active endometriosis 81.41 pg/ml (68.4/98.7), while in Group 4 with rAFS stage III/IV 200,15 pg/ml (182.6/226.8), respectively.ConclusionIn conclusion, we were able to show that the TNF-alpha secretion of PM was significantly higher in patients with proven endometriosis compared to the control group. These results were found to be statistically significant and were in accordance with the histological findings. Thus, due to its immunomodulating potential, TNF-alpha may be a marker of both activity and stage of endometriosis.
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Abstract

Introduction As a cytotoxic product of activated monocytes, macrophages, and lymphocytes, tumor necrosis factor alpha (TNF-α)—together with other cytokines and growth factors—is an important component in the immune response of the human organism. In addition, TNF-α plays a central role in neoangiogenesis. Because of its cytotoxicity with regard to several tumor cells and its motility-hindering effect on human sperm, TNF-α is considered to be a significant pelvic mediator of female sterility.

Objective

The goal of our study was to determine as to whether or not an increased TNF-α secretion by peritoneal macrophages (PM) can be measured in female patients with endometriosis compared with healthy subjects, and if TNF-α secretion can be correlated with the activity of endometriosis.

Methods

During infertility work-up, 100 female patients underwent a diagnostic laparoscopy. In accordance with the rAFS classification as well as from the macroscopic aspect of the degree of activity of the endometriosis, the patients were divided as follows: an endometriosis-free control group with a completely normal pelvic status (n=35) and three groups with increasing stages of endometriosis (n=65). In the control group (Group 1), the TNF-α concentrations (median values with minimum / maximum) were 6.2 pg/ml (1.9/10.2), in Group 2 with rAFS stage I/II less active endometriosis 56.33 pg/ml (39.5/71.2), in Group 3 with rAFS stage I/II but highly active endometriosis 81.41 pg/ml (68.4/98.7), while in Group 4 with rAFS stage III/IV 200,15 pg/ml (182.6/226.8), respectively.

Conclusion

In conclusion, we were able to show that the TNF-α secretion of PM was significantly higher in patients with proven endometriosis compared to the control group. These results were found to be statistically significant and were in accordance with the histological findings. Thus, due to its immunomodulating potential, TNF-α may be a marker of both activity and stage of endometriosis. Similar content being viewed by others

References

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J Immunol 142:3134–3139 Wilson TJ, Hertzog PJ, Angus D, Munnery L, Wood EC, Kola I (1994) Decreased natural killer cell activity in endometriosis patients: relationship to disease pathogenesis. Fertil Steril 62:1086–1088 Witz CA (2002) Pathogenesis of endometriosis. Gynecol Obstet Invest 53 [Suppl 1]:52–62 Author information Authors and Affiliations Corresponding author Additional information The first two authors have contributed equally to this publication Rights and permissions About this article Cite this article Richter, O.N., Dorn, C., Rösing, B. et al. Tumor necrosis factor alpha secretion by peritoneal macrophages in patients with endometriosis. Arch Gynecol Obstet 271, 143–147 (2005). https://doi.org/10.1007/s00404-003-0591-9 Received: Accepted: Published: Issue date: DOI: https://doi.org/10.1007/s00404-003-0591-9

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Macrophages Tumor Necrosis Factor-alpha Adult Ascitic Fluid Ascitic Fluid Biomarkers Biomarkers Endometriosis Endometriosis Female Humans Laparoscopy Macrophages Peritoneal Lavage Prospective Studies Tumor Necrosis Factor-alpha

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