Cited by 556Ovarian function and disordersAdrenal Hormones and DisordersSexual Differentiation and Disorders

Augmented androgen production is a stable steroidogenic phenotype of propagated theca cells from polycystic ovaries

Nelson, Velen L., Legro, Richard S., Strauss, Jerome F., McAllister, Jan M.·1999·Molecular Endocrinology

Abstract

To test the hypothesis that the hyperandrogenemia associated with polycystic ovary syndrome (PCOS) results from an intrinsic abnormality in ovarian theca cell steroidogenesis, we examined steroid hormone production, steroidogenic enzyme activity, and mRNA expression in normal and PCOS theca cells propagated in long-term culture. Progesterone (P4), 17alpha-hydroxyprogesterone (17OHP4), and testosterone (T) production per cell were markedly increased in PCOS theca cell cultures. Moreover, basal and forskolin-stimulated pregnenolone, P4, and dehydroepiandrosterone metabolism were increased dramatically in PCOS theca cells. PCOS theca cells were capable of substantial metabolism of precursors into T, reflecting expression of an androgenic 17beta-hydroxysteroid dehydrogenase. Forskolin-stimulated cholesterol side chain cleavage enzyme (CYP11A) and 17alpha-hydroxylase/17,20-desmolase (CYP17) expression were augmented in PCOS theca cells compared with normal cells, whereas no differences were found in steroidogenic acute regulatory protein mRNA expression. Collectively, these observations establish that increased CYP11A and CYP17 mRNA expression, as well as increased CYP17, 3beta-hydroxysteroid dehydrogenase, and 17beta-hydroxysteroid dehydrogenase enzyme activity per theca cell, and consequently increased production of P4, 17OHP4, and T, are stable properties of PCOS theca cells. These findings are consistent with the notion that there is an intrinsic alteration in the steroidogenic activity of PCOS thecal cells that encompasses multiple steps in the biosynthetic pathway.

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Crossref · 10.1210/mend.13.6.0311

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Authors
Nelson, V. L., Legro, R. S., Strauss, J. F., & McAllister, J. M.
Affiliations
  • Pennsylvania State University (US)
  • University of Pennsylvania (US)
Venue
Molecular Endocrinology
Published
1999-06
Volume
13
Issue
6
Pages
946-957
ISSN
  • 0888-8809 (ISSN-L)
  • 1944-9917
OpenAlex
W1995994721
Cited by
556
References
31
Citations by year
2026: 12 · 2025: 20 · 2024: 22 · 2023: 25 · 2022: 27 · 2021: 24 · 2020: 24 · 2019: 30 · 2018: 21 · 2017: 16 · 2016: 23 · 2015: 25 · 2014: 24 · 2013: 26 · 2012: 21
FWCI
13.02
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (U54-HD34449, R01HD33852, R01HD033852, U54HD034449)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian function and disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
Keywords
polycystic ovary syndrome, theca cells, steroidogenesis, hyperandrogenemia, progesterone, testosterone, 17-hydroxyprogesterone, CYP11A, CYP17, 17β-hydroxysteroid dehydrogenase, 3β-hydroxysteroid dehydrogenase, steroidogenic enzymes, steroidogenic acute regulatory protein, long-term cell culture
MeSH terms
Steroidogenic Acute Regulatory Protein, Adult, Androgens, Cells, Cultured, Cholesterol Side-Chain Cleavage Enzyme, Dehydroepiandrosterone, Female, Colforsin, Gene Expression Regulation, Humans, Phenotype, Phosphoproteins, Polycystic Ovary Syndrome, Pregnenolone, Progesterone, Reference Values, Steroid 17-alpha-Hydroxylase, Theca Cells, 17-Hydroxysteroid Dehydrogenases

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