Apoptose e expressão de proteína BCL-2 nos implantes de endométrio ectópico de pacientes portadoras de endometriose
Ectopic endometrial implants in endometriosis patients exhibit significantly lower apoptosis rates and higher BCL-2 protein expression compared to eutopic endometrium in healthy women.
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This study compared spontaneous apoptosis and Bcl-2 protein expression in ectopic endometrial implants from women with endometriosis versus eutopic endometrium from healthy controls. Researchers analyzed tissue samples collected during surgery using TUNEL assays and immunohistochemistry to determine apoptotic indices and gene expression levels across different menstrual cycle phases. The results demonstrated that ectopic lesions exhibited significantly lower rates of apoptosis and higher Bcl-2 expression than control tissues, regardless of the menstrual phase. These findings indicate that reduced cell death susceptibility contributes to the survival and colonization of ectopic endometrial cells, playing a fundamental role in the disease's pathogenesis. This paper is centrally about endometriosis — specifically investigating the molecular mechanisms of implant survival through apoptosis regulation.
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