The hypoxia-epigenetics-ncRNA axis in endometriosis: from molecular cascades to self-sustaining pathogenic circuits.

Endometriosis is a debilitating chronic inflammatory disorder driven by extensive molecular reprogramming. Despite significant bench research into its pathogenesis, translating these molecular discoveries into clinical practices that improve patient outcomes remains a critical challenge. This comprehensive review bridges the gap between basic life sciences and clinical application by delineating the hypoxia-epigenetics-non-coding RNA (ncRNA) axis as the primary engine of endometriosis pathogenesis. We elucidate how microenvironmental stress, specifically hypoxia via HIF-1α stabilization, initiates a coordinated cascade of aberrant DNA methylation, post-translational histone modifications, and ncRNA dysregulation. We illustrate how these isolated molecular events converge into a highly integrated, self-sustaining pathogenic circuit that drives hallmark clinical phenotypes, including progesterone resistance, chronic inflammation, and tissue invasiveness. To overcome traditional disciplinary silos, we propose a four-stage dynamic progression model that maps the transition from acute epigenetic stress to chronic disease manifestation, offering a robust framework for clinical stratification. Disrupting this specific axis offers new avenues for non-hormonal precision therapeutics and the development of non-invasive diagnostic biomarkers to address significant unmet clinical needs in endometriosis management.