Journal of assisted reproduction and genetics · 2020
Characterizing the endometrial fluid cytokine profile in women with endometriosis.
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Llarena Natalia C, Richards Elliott G, Priyadarshini Anju, Fletcher David, Bonfield Tracey, Flyckt Rebecca L
Аннотация
PURPOSE: To compare growth factor and cytokine profiles in the endometrial secretions of patients with and without endometriosis to determine whether a particular protein profile is predictive of the disease.
METHODS: Patients undergoing laparoscopic gynecologic surgery for benign indications were recruited for this prospective cohort study. Prior to surgery, endometrial fluid was aspirated and multiplex immunoassay was used to quantify 7 cytokines and growth factors. During surgery, each patient was staged according to the ASRM staging system for endometriosis. Cytokines and growth factors were evaluated using the Mann-Whitney and Kruskal-Wallis tests. Combinations of cytokines were evaluated using logistic regression analysis, and ROC curves were generated to evaluate the predictive capacity of the assay.
RESULTS: Endometrial secretions were analyzed from 60 patients. Nineteen had stage 3-4 endometriosis, 19 had stage 1-2 disease, and 22 had no endometriosis. There were no significant differences between controls and stage 1-2 endometriosis; however, levels of IL-1α and IL-6 were significantly increased in women with moderate-to-severe disease. A combination of IL-1α, IL-1β, and IL-6 in endometrial secretions predicts stage 3-4 endometriosis with an AUC of 0.78. A threshold value of 118 pg/mL yields a sensitivity of 75% and specificity of 70%.
CONCLUSION: Aspiration of endometrial fluid is a safe and effective approach for evaluating the endometrial profile of women with endometriosis. Women with moderate-to-severe endometriosis demonstrate a distinct cytokine profile compared to controls. A combination of IL-1α, IL-1β, and IL-6 in the endometrial secretions is predictive of stage 3-4 endometriosis, but is not predictive of minimal-to-mild disease.
METHODS: Patients undergoing laparoscopic gynecologic surgery for benign indications were recruited for this prospective cohort study. Prior to surgery, endometrial fluid was aspirated and multiplex immunoassay was used to quantify 7 cytokines and growth factors. During surgery, each patient was staged according to the ASRM staging system for endometriosis. Cytokines and growth factors were evaluated using the Mann-Whitney and Kruskal-Wallis tests. Combinations of cytokines were evaluated using logistic regression analysis, and ROC curves were generated to evaluate the predictive capacity of the assay.
RESULTS: Endometrial secretions were analyzed from 60 patients. Nineteen had stage 3-4 endometriosis, 19 had stage 1-2 disease, and 22 had no endometriosis. There were no significant differences between controls and stage 1-2 endometriosis; however, levels of IL-1α and IL-6 were significantly increased in women with moderate-to-severe disease. A combination of IL-1α, IL-1β, and IL-6 in endometrial secretions predicts stage 3-4 endometriosis with an AUC of 0.78. A threshold value of 118 pg/mL yields a sensitivity of 75% and specificity of 70%.
CONCLUSION: Aspiration of endometrial fluid is a safe and effective approach for evaluating the endometrial profile of women with endometriosis. Women with moderate-to-severe endometriosis demonstrate a distinct cytokine profile compared to controls. A combination of IL-1α, IL-1β, and IL-6 in the endometrial secretions is predictive of stage 3-4 endometriosis, but is not predictive of minimal-to-mild disease.