Background Endometriosis is a common benign gynecologic disease in women of reproductive age, and its manifestations remarkably decrease quality of life. Lactate, as a metabolite, exerts prominent effects across a wide range of biological processes. The objective of this research is to explore the clinical value and immune features of lactate-related genes in endometriosis and contribute novel strategies for guiding the clinical management of patients with endometriosis. Methods We first conducted a differential expression analysis to identify the differentially expressed genes (DEGs) in the training set. By integrating the critical module genes from weighted gene co-expression network analysis (WGCNA) and lactate-related genes (LRGs), we preliminarily screened lactate-related differentially expressed genes (LR-DEGs). Machine learning algorithms, single-cell datasets, and clinical samples were used to further identify and validate core LR-DEGs. Subsequently, we evaluated the diagnostic value of the model constructed from core LR-DEGs for endometriosis and explored the biological functions of these genes. Additionally, we conducted immune-related analysis in endometriosis and identified small molecule compounds targeting core LR-DEGs. Results In this study, 22 candidate genes were identified by intersecting 2,318 DEGs and 2,177 key module genes with 357 LRGs. This list was further refined using three machine learning algorithms, resulting in three primary lactate-related biomarkers: BPGM, DHFR, and SLC25A13. A nomogram model constructed from core LR-DEGs demonstrated outstanding diagnostic performance in identifying patients with endometriosis. Immune-related analysis revealed significant associations between hub LR-DEGs and cellular immune dysregulation in endometriosis. Additionally, a gene–small molecule compound regulatory network was established to guide potential treatment strategies. Conclusion Taken together, our study established a robust relationship between lactate metabolism-related genes and endometriosis, with the model promising to enable the early diagnosis of endometriosis, contribute to the excavation of the immune molecular mechanisms of endometriosis, and support the discovery of potential targets for therapy in the metabolism of endometriosis.
Li et al. (Tue,) studied this question.
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