Unveiling the Pathological Landscape of Intrauterine Adhesion: Mechanistic Insights and Exosome-Biomaterial Therapeutic Innovations

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Intrauterine adhesion (IUA) is a fibrotic disorder caused by endometrial injury, characterized by structural damage and functional impairment of the endometrium, which severely impacts female reproductive health. The core pathology of IUA revolves around aberrant fibrosis, driven by intricate interactions among inflammation, epithelial-mesenchymal transition (EMT), and dysregulated cellular processes such as autophagy and ferroptosis. Inflammation acts as a pivotal initiator, directly activating fibrotic pathways or inducing EMT, thereby exacerbating fibrosis. Recent studies highlight the dual roles of autophagy and ferroptosis in IUA progression, where their dysregulation either mitigates or aggravates fibrotic outcomes, underscoring the complexity of its pathogenesis. Current treatments, such as transcervical resection of adhesions (TCRA), offer short-term anatomical restoration but fail to address high recurrence rates and insufficient endometrial regeneration. Exosomes have emerged as a promising cell-free therapeutic strategy, leveraging their bioactive cargo to modulate fibrosis, inflammation, and EMT. However, research on exosome-based therapies for IUA remains limited, particularly in targeting autophagy, ferroptosis, and their integration with biomaterials. Biomaterial-assisted exosome delivery systems, such as hydrogels and scaffolds, enhance therapeutic efficacy by e

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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