Fas and Fas-Ligand in Eutopic and Ectopic Endometrium of Women With Endometriosis: The Possible Immune Privilege of Ectopic Endometrium
Endometriotic lesions showed significantly stronger Fas-Ligand and weaker Fas expression compared to eutopic endometrium, suggesting immune privilege of ectopic tissue.
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This study examined Fas (Fas receptor) and Fas-Ligand expression in tissue specimens from 33 women with severe endometriosis and 18 women without endometriosis, using immunostaining across menstrual phases and comparing eutopic endometrium versus ectopic endometriotic lesions. Fas-Ligand staining was stronger in eutopic secretory-phase epithelial cells, while ectopic lesions showed significantly stronger Fas-Ligand staining than eutopic tissue regardless of menstrual phase; in parallel, Fas staining in eutopic tissue was reduced during the proliferative phase and strong in the secretory phase, whereas epithelial cells of ectopic endometrium showed reduced Fas staining independently of menstrual phase. The authors interpret the combination of reduced Fas with increased Fas-Ligand in ectopic lesions as suggesting a possible immune-privilege mechanism. The paper’s central relevance is to endometriosis: it directly compares Fas/Fas-Ligand expression in eutopic and ectopic endometrium and proposes an immune-privilege role for ectopic endometriotic tissue in endometriosis.
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- Endometriotic Tissue-derived Exosomes Downregulate NKG2D-mediated Cytotoxicity and Promote Apoptosis: Mechanisms for Survival of Ectopic Endometrial Tissue in Endometriosis 2024
- Promising effects of exosomes from menstrual blood-derived mesenchymal stem cells on endometriosis 2023
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- The Abundance and Function of Neutrophils in the Endometriosis Systemic and Pelvic Microenvironment 2023
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- Effect of PLGA Nanoparticle-Mediated Delivery of miRNA 503 on The Apoptosis of Ovarian Endometriosis Cells 2022
- Polyphenols as a Diet Therapy Concept for Endometriosis—Current Opinion and Future Perspectives 2021
- Faculty Opinions recommendation of Polyphenols as a Diet Therapy Concept for Endometriosis-Current Opinion and Future Perspectives. 2021
- Human Wharton’s jelly stem cells inhibit endometriosis through apoptosis induction 2020
- Endometriosis: What is the Influence of Immune Cells? 2020
- Phytochemical characteristics from Phaleria macrocarpa and its inhibitory activity on the peritoneal damage of endometriosis 2020
- The endometrial immune environment of women with endometriosis 2019
- Molecular-genetic background of endometriosis: diagnostic potential of heritable and expressed factors 2018
- Dysfunctional signaling underlying endometriosis: current state of knowledge 2018
- Comments on: Gene Polymorphisms in FAS (Rs3740286 and Rs4064) are Involved in Endometriosis Development in Brazilian Women, but not those in CASP8 (rs13416436 and rs2037815) 2018
- Endocannabinoids modulate apoptosis in endometriosis and adenomyosis 2017
- Immune-inflammation gene signatures in endometriosis patients 2016
- Resveratrol Enhances Apoptosis in Endometriotic Stromal Cells 2016
- Regulation of apoptotic pathways during endometriosis: from the molecular basis to the future perspectives 2016
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