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Updated: May 5, 2026
Mouse Model of Surgically-induced Endometriosis by Auto-transplantation of Uterine Tissue
Published on: January 6, 2012
Single-cell and spatial transcriptomic profiling revealed niche interactions sustaining growth of endometriotic
Song Liu1, Xiaoyan Li2, Zhiyue Gu2
1Center for Bioinformatics, National Infrastructures for Translational Medicine, Institute of Clinical Medicine & Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.
Abstract:
Endometriosis is a chronic condition with limited therapeutic options. The molecular aberrations promoting ectopic attachment and interactions with the local microenvironment sustaining lesion growth have been unclear, prohibiting development of targeted therapies. Here, we performed single-cell and spatial transcriptomic profiling of ectopic lesions and eutopic endometrium in endometriosis. We found that ectopic endometrial stromal (EnS) cells retained cyclical gene expression patterns of their eutopic counterparts while exhibiting unique gene expression that contributes to the pathogenesis of endometriosis. We identified two distinct ovarian stromal cells (OSCs) localized at different zones of the lesion, showing differential gene expression profiles associated with fibrosis and inflammation, respectively. We also identified WNT5A upregulation and aberrant activation of non-canonical WNT signaling in endometrial stromal cells that may contribute to the lesion establishment, offering novel targets for therapeutic intervention. These data will enhance our understanding of the molecular mechanisms underlying endometriosis and paves the way for developing non-hormonal treatments.
Insights
This study reveals unique gene expression in endometriosis lesions, identifying specific ovarian stromal cells and WNT5A signaling as potential targets for new non-hormonal therapies.
Area of Science:
- Reproductive Biology
- Molecular Pathology
- Genomics
Background:
- Endometriosis is a chronic gynecological condition with limited treatment options.
- The molecular mechanisms driving endometriosis lesion development and growth remain poorly understood.
- Targeted therapies are hindered by the lack of clarity on molecular aberrations in ectopic endometrial tissue.
Purpose of the Study:
- To elucidate the molecular landscape of endometriosis lesions using advanced transcriptomic profiling.
- To identify specific cell types and signaling pathways involved in endometriosis pathogenesis.
- To uncover novel therapeutic targets for non-hormonal endometriosis treatments.
Main Methods:
- Single-cell and spatial transcriptomic profiling of ectopic endometriosis lesions and eutopic endometrium.
- Comparative gene expression analysis between lesional and normal endometrial stromal cells.
- Identification and characterization of distinct ovarian stromal cell populations within lesions.
Main Results:
- Ectopic endometrial stromal (EnS) cells maintain cyclical patterns but exhibit unique pathogenic gene expression.
- Two distinct ovarian stromal cell (OSC) populations were identified in lesions, linked to fibrosis and inflammation.
- Upregulation of WNT5A and aberrant non-canonical WNT signaling were observed in EnS cells.
Conclusions:
- Endometriosis pathogenesis involves unique molecular features of ectopic stromal cells and specific microenvironmental interactions.
- WNT5A and non-canonical WNT signaling represent promising novel therapeutic targets for endometriosis.
- These findings advance the understanding of endometriosis molecular mechanisms and support the development of non-hormonal interventions.
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