Regulation of Steroidogenic Acute Regulatory Protein Expression and Progesterone Production in Endometriotic Stromal Cells

Shih-Fu Tsai
In: Journal of Clinical Endocrinology & Metabolism · 2001 · vol. 86(12) , pp. 5765–5773 · doi:10.1210/jc.86.12.5765 · W4231222638
OA: bronze CC0 ⤵ 12 in-corpus citations
📄 Open PDF View on OpenAlex View at publisher
⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-08 ⓘ

This study found that increased StAR expression in endometriotic stromal cells, induced by PGE2, leads to elevated progesterone production, correlating with endometriosis formation.

One-sentence paraphrase of the abstract; not a substitute for reading it. No clinical advice. How this works

Abstract

The regulation of steroidogenic acute regulatory protein (StAR) gene expression and the synthesis of steroids from cholesterol in ectopic endometriosis tissues were investigated. Peritoneal fluid and endometrial tissues were collected from patients with endometriosis and otherwise healthy women. Peritoneal progesterone and 17β-E2 concentrations were highest in early stage endometriosis compared with those in advanced stage endometriosis and in normal women. In concordance with the profile of peritoneal steroids, StAR mRNA and protein were greatest in ectopic implants of early endometriosis. In the advanced stage, concentrations of StAR mRNA and protein were also greater compared with those in normal endometrium. In contrast, P450 side-chain cleavage enzyme and 3β-hydroxysteroid dehydrogenase transcripts were not different between normal endometrium and ectopic endometriotic implants. Expression of StAR mRNA was detected in purified stromal, but not epithelial, cells. Treatment with PGE2, but not TNFα, or IL-1β significantly increased StAR expression and thus induced progesterone production in cultured endometriotic stromal cells. These results demonstrated that aberrant expression of StAR in ectopic endometriotic tissues leading to increased peritoneal progesterone is associated with the formation of endometriosis. Induction of StAR gene expression by peritoneal PGE2 in endometriotic stromal cells may further contribute to the development of endometriosis.

My notes (saved in your browser only)

Condition tags

endometriosis

Citation neighborhood (2-hop)

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. Outer rings show 2-hop neighbours — papers reached through the immediate citers/citees. [ collapse to 1-hop ]

References (28)

Cited by (12)

Source provenance

openalex
last seen: 2026-06-10T17:14:06.276822+00:00
License: CC0 · commercial use OK