Exploring Epithelial–Mesenchymal Transition Signals in Endometriosis Diagnosis and In Vitro Fertilization Outcomes

Vito Cela, Elisa Malacarne, Maria Elena Rosa Obino, Ilaria Marzi, Francesca Papini, Francesca Vergine, Elena Pisacreta, Elisa Zappelli, Deborah Pietrobono, Giorgia Scarfò, Simona Daniele, Ferdinando Franzoni, Claudia Martini, Paolo Giovanni Artini
Biomedicines · 2021 · vol. 9(11) , pp. 1681 · doi:10.3390/biomedicines9111681 · PMID:34829910 · PMC8615497 · W3211516661
article OA: gold CC0 ⤵ 8 in-corpus citations
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Abstract

Endometriosis (EMS) pathogenesis has been related to the release of inflammatory mediators in peritoneal fluid, creating an altered microenvironment that leads to low-grade oocyte/embryos and to the reduction of implantation rates. The Epithelial-Mesenchymal Transition (EMT), an inflammation-related process, can be a further contributing factor to EMS. This study aimed to investigate, among various cytokines and EMT markers (Cadherins, TGF-β, HIF-1α), diagnostic markers of EMS and prognostic factors of in vitro fertilization (IVF) outcomes. Herein, EMS patients manifested higher serum levels of the inflammatory molecules IL-6, IL-8, and IL-12 and a decrease in the concentrations of the anti-inflammatory IL-10. Moreover, biochemical markers associated with the EMT process were more elevated in serum and follicular fluid (FF) of EMS patients than in controls. At the end, the number of good-quality embryos was inversely related to serum IL-6 and EMT markers. Interestingly, serum IL-6 and FF IL-10 concentrations differentiated EMS patients from controls. Finally, serum IL-8 and E-Cadherin levels, as well as FF IL-10, predicted positive IVF outcome with great accuracy. Our data confirm the pivotal role of inflammatory mediators (i.e., IL-6 and IL-10) in EMS pathogenesis and suggest that EMT-related markers are elevated in EMS patients and can be predictive of IVF outcome.

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endometriosis

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