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Updated: May 15, 2025

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Establishment of an Experimental Mouse Model of Endometrioma to Study its Related Infertility
Published on: April 5, 2024
741
Association Between Circulating Cytokines and Endometriosis: A Mendelian Randomization Study
Xiao Xu1,2,3, Jie Mei1,2,3, Bin Zhang4
1Department of Gynecology, Maternal and Child Health Center of Anhui Medical University, the Fifth Affiliated Clinical College of Anhui Medical University, Hefei, Anhui, China.
Journal of Cellular and Molecular Medicine
|April 10, 2025
Summary
This study found that higher levels of TNF-Related Apoptosis-Inducing Ligand (TRAIL) reduce endometriosis risk. It also identified DSG 2 as a key gene, with lower expression linked to endometriosis development.
Area of Science:
- Reproductive immunology
- Genetics
- Molecular biology
Background:
- Circulating cytokines are crucial in female reproductive dysfunction.
- Endometriosis (EM) is linked to immune cytokines, but causality remains unproven.
Purpose of the Study:
- To investigate the causal relationship between 41 cytokines and endometriosis using Mendelian randomization (MR).
- To identify potential diagnostic markers and therapeutic targets for endometriosis.
Main Methods:
- Mendelian randomization (MR) analysis of Genome-Wide Association Study (GWAS) data for 41 cytokines and endometriosis.
- Gene annotation (MAGMA), co-expression network analysis (WGCNA), and gene set enrichment analysis (GSEA).
- Validation using quantitative Real-Time Polymerase Chain Reaction (qRT-PCR) on clinical samples.
Main Results:
- Mendelian randomization identified a causal link between TNF-Related Apoptosis-Inducing Ligand (TRAIL) and endometriosis.
- Elevated TRAIL levels were associated with reduced endometriosis risk (β = -0.061, p = 2.267e-6).
- WGCNA identified DSG 2 as a TRAIL-related gene associated with endometriosis; qRT-PCR confirmed lower DSG 2 expression in endometriosis patients.
Conclusions:
- Elevated TRAIL levels significantly reduce endometriosis risk.
- Decreased DSG 2 expression, a TRAIL-related gene, may contribute to endometriosis development via multiple signaling pathways.
- These findings suggest TRAIL and DSG 2 as potential diagnostic markers and therapeutic targets for endometriosis.
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