Pathogenesis of Endometriosis: Progesterone Resistance in Women with Endometriosis
Endometriosis pathogenesis involves progesterone resistance due to increased aromatase activity, decreased 17β-HSD-2 expression, and reduced progesterone receptors, leading to relative progesterone resistance and treatment failure.
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The paper reviews how steroid hormone dysregulation contributes to endometriosis pathogenesis, focusing on estrogen-dependent mechanisms and progesterone resistance in endometriotic lesions and the endometrium. It describes key molecular features including increased aromatase activity, decreased 17β-hydroxysteroid-dehydrogenase (17β-HSD-2) expression, reduced progesterone receptor (PR-A and PR-B) expression, and resulting enhanced estradiol bioavailability with altered signaling pathways. The authors state that progesterone resistance is linked to failure of long-term treatment for pain and infertility and may contribute to high recurrence after surgery and medical therapies. A major limitation explicitly noted is the need for more detailed mechanistic understanding in both endometrium and lesions to support development of long-term, resistance-overcoming modalities. This paper is centrally about endometriosis — it specifically focuses on progesterone resistance mechanisms driven by altered estrogen/progesterone steroid signaling.
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References (24)
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