Damaged endometrial tissue microenvironment

The damaged endometrial tissue microenvironment is a complex pathological state characterized by the disruption of the normal uterine lining, often resulting from mechanical trauma or severe infection (Zhang et al., 2023). This environment is defined by a shift toward a pro-fibrotic and pro-inflammatory state, where excessive extracellular matrix deposition by myofibroblasts leads to intrauterine adhesions, commonly known as Asherman's syndrome (Yu et al., 2018). Key molecular features include the upregulation of Transforming Growth Factor-beta (TGF-beta) and a decrease in vascular endothelial growth factor (VEGF), which impairs the angiogenesis necessary for cyclical tissue regeneration (Santamaria et al., 2018). Therapeutic interventions targeting this microenvironment focus on restoring receptivity through the use of hormonal therapy, vasodilators like sildenafil, and regenerative approaches such as mesenchymal stem cell (MSC) therapy or platelet-rich plasma (PRP) (Xie et al., 2020). These treatments aim to modulate the local immune response and stimulate the proliferation of endogenous endometrial progenitor cells to support embryo implantation and successful pregnancy (Gargett et al., 2016). Furthermore, the microenvironment's state is often monitored via ultrasound for endometrial thickness and through molecular markers of fibrosis and inflammation (Liu et al., 2020). Understanding the spatial and temporal dynamics of this niche is crucial for developing targeted interventions to restore uterine function and treat refractory infertility (Zhang et al., 2023).

Other names

Injured uterine microenvironmentFibrotic endometrial nicheAsherman's syndrome microenvironmentThin endometrium microenvironment

Therapeutic interventions aim to promote angiogenesis, reduce fibrotic scarring, and modulate the local immune response to restore the functional layer of the endometrium (Xie et al., 2020; Santamaria et al., 2018).