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Mariniello K, Pittaway JFH, Altieri B, Borges KS, Hadjidemetriou I, Ribeiro C, Ruiz-Babot G, Lim JA, Foster J, Cleaver J, Sosabowski J, Rahman N, Doroszko M, Hantel C, Sigala S, Abate A, Tamburello M, Kiseljak-Vassiliades K, Wierman M, Parvanta L, Abdel-Aziz TE, Chung TT, Di Marco A, Palazzo F, Gomez-Sanchez CE, Taylor DR, Rayner O, Ronchi CL, Gaston-Massuet C, Sbiera S, Drake WM, Rognoni E, Kroiss M, Breault DT, Fassnacht M, Guasti L. Dlk1 is a novel adrenocortical stem/progenitor cell marker that predicts malignancy in adrenocortical carcinoma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.22.609117. [PMID: 39229217 PMCID: PMC11370565 DOI: 10.1101/2024.08.22.609117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
Disruption of processes involved in tissue development and homeostatic self-renewal is increasingly implicated in cancer initiation, progression, and recurrence. The adrenal cortex is a dynamic tissue that undergoes life-long turnover. Here, using genetic fate mapping and murine adrenocortical carcinoma (ACC) models, we have identified a population of adrenocortical stem cells that express delta-like non-canonical Notch ligand 1 (DLK1). These cells are active during development, near dormant postnatally but are re-expressed in ACC. In a study of over 200 human ACC samples, we have shown DLK1 expression is ubiquitous and is an independent prognostic marker of recurrence-free survival. Paradoxically, despite its progenitor role, spatial transcriptomic analysis has identified DLK1 expressing cell populations to have increased steroidogenic potential in human ACC, a finding also observed in four human and one murine ACC cell lines. Finally, the cleavable DLK1 ectodomain is measurable in patients' serum and can discriminate between ACC and other adrenal pathologies with high sensitivity and specificity to aid in diagnosis and follow-up of ACC patients. These data demonstrate a prognostic role for DLK1 in ACC, detail its hierarchical expression in homeostasis and oncogenic transformation and propose a role for its use as a biomarker in this malignancy.
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Affiliation(s)
- Katia Mariniello
- Centre for Endocrinology, William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - James F H Pittaway
- Centre for Endocrinology, William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Barbara Altieri
- Division of Endocrinology and Diabetes, Dept. of Medicine, University Hospital, University of Würzburg, 97080 Würzburg, Germany
| | - Kleiton Silva Borges
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Irene Hadjidemetriou
- Centre for Endocrinology, William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Claudio Ribeiro
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Gerard Ruiz-Babot
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Technical, University Dresden, Dresden, Germany
| | - Jiang A Lim
- Centre for Endocrinology, William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Julie Foster
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ UK
| | - Julie Cleaver
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ UK
| | - Jane Sosabowski
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ UK
| | - Nafis Rahman
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Milena Doroszko
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Constanze Hantel
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), 8091 Zurich, Switzerland
| | - Sandra Sigala
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, 25124 Brescia, Italy
| | - Andrea Abate
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, 25124 Brescia, Italy
| | - Mariangela Tamburello
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, 25124 Brescia, Italy
| | - Katja Kiseljak-Vassiliades
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
- Division of Endocrinology, Metabolism and Diabetes at Rocky Mountain Regional Veterans Affair Medical Center, Washington, DC, USA
| | - Margaret Wierman
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
- Division of Endocrinology, Metabolism and Diabetes at Rocky Mountain Regional Veterans Affair Medical Center, Washington, DC, USA
| | - Laila Parvanta
- Department of Surgery, St Bartholomew's Hospital, West Smithfield, London, EC1A 7BE, United Kingdom
| | - Tarek E Abdel-Aziz
- Department of Surgery, University College London Hospitals NHS Foundation Trust, London NW1 2PG, United Kingdom
| | - Teng-Teng Chung
- Department of Endocrinology, University College London Hospitals NHS Foundation Trust, London NW1 2PG, United Kingdom
| | - Aimee Di Marco
- Department of Endocrine and Thyroid Surgery, Hammersmith Hospital, Imperial College London, London W12 0HS, United Kingdom
| | - Fausto Palazzo
- Department of Endocrine and Thyroid Surgery, Hammersmith Hospital, Imperial College London, London W12 0HS, United Kingdom
| | - Celso E Gomez-Sanchez
- Endocrine Section, G.V. (Sonny) Montgomery VA Medical Center and the Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, USA
| | - David R Taylor
- Department of Clinical Biochemistry (Synnovis Analytics), King's College Hospital, London SE5 9RS, United Kingdom
| | - Oliver Rayner
- Department of Clinical Biochemistry (Synnovis Analytics), King's College Hospital, London SE5 9RS, United Kingdom
| | - Cristina L Ronchi
- Institute of Metabolism and System Research College of Medical and Dental Sciences, University of Birmingham, B15 2TT, United Kingdom
| | - Carles Gaston-Massuet
- Centre for Endocrinology, William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Silviu Sbiera
- Division of Endocrinology and Diabetes, Dept. of Medicine, University Hospital, University of Würzburg, 97080 Würzburg, Germany
| | - William M Drake
- Centre for Endocrinology, William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Emanuel Rognoni
- Centre for Cell Biology & Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Matthias Kroiss
- Division of Endocrinology and Diabetes, Dept. of Medicine, University Hospital, University of Würzburg, 97080 Würzburg, Germany
- Department of Internal Medicine IV, LMU University Hospital, LMU Munich, Ziemssenstraße 5, 80336 München, Germany
| | - David T Breault
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
- Harvard Stem Cell Institute, Cambridge, Massachusetts
| | - Martin Fassnacht
- Division of Endocrinology and Diabetes, Dept. of Medicine, University Hospital, University of Würzburg, 97080 Würzburg, Germany
| | - Leonardo Guasti
- Centre for Endocrinology, William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
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Vlieghe H, Leonel ECR, Asiabi P, Amorim CA. The characterization and therapeutic applications of ovarian theca cells: An update. Life Sci 2023; 317:121479. [PMID: 36758341 DOI: 10.1016/j.lfs.2023.121479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/24/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023]
Abstract
Theca cells perform a range of roles during folliculogenesis. So far, little is known about their recruitment process and function since early research has mainly focused on the interactions between granulosa cells and the oocyte, leaving theca cells unfairly forgotten in the understanding of ovarian physiology and pathogenesis. Given that research on theca cells has greatly emerged in recent years, this review of literature aims to discuss the established theoretical concepts with the most recent findings about theca cells' characterization and origins, in vitro culture applications as models for fertility preservation and pharmacological/toxicological studies, its importance in unraveling pathogenic pathways, and stem-cell-based bioengineering for hormonal replacement therapies. Isolation and in vitro culture techniques for theca cells have led to essential advancements in their characterization as a specific cell population. Unraveling the origins of theca cells during the in vivo differentiation process in the adult ovary will assist the development of hormonal replacement therapies, reestablishment of fertility, and treatments for diseases such as premature ovarian insufficiency and polycystic ovarian syndrome, which seem to be directly influenced by theca cells.
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Affiliation(s)
- Hanne Vlieghe
- Pôle de Recherche en Physiopathologie de la Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Ellen C R Leonel
- Departament of Histology, Embryology and Cell Biology, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n Câmpus Samambaia, 74001-970 Goiânia, GO, Brazil
| | - Parinaz Asiabi
- In Vivo Cellular and Molecular Imaging Laboratory, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Christiani A Amorim
- Pôle de Recherche en Physiopathologie de la Reproduction, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium.
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Bakhtyukov AA, Derkach KV, Fokina EA, Lebedev IA, Sorokoumov VN, Bayunova LV, Shpakov AO. Effect of Different Luteinizing Hormone Receptor Agonists on Ovarian Steroidogenesis in Mature Female Rats. J EVOL BIOCHEM PHYS+ 2023. [DOI: 10.1134/s0022093023010052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
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Abedal-Majed MA, Springman SA, Jafar HD, Bell BE, Kurz SG, Wilson KE, Cupp AS. Naturally occurring androgen excess cows are present in dairy and beef herds and have similar characteristics to women with PCOS. J Anim Sci 2022; 100:6596684. [PMID: 35648128 DOI: 10.1093/jas/skac151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/26/2022] [Indexed: 02/06/2023] Open
Abstract
Beef cows with excess androstenedione (A4; High A4) in follicular fluid (FF) and secreted by the ovarian cortex have been reported from the University of Nebraska-Lincoln physiology herd displaying characteristics reminiscent of polycystic ovary syndrome (PCOS). Thus, we hypothesized that naturally occurring High A4 cows were present in other dairy and beef herds. Fourteen Jordan (Amman, Jordon) dairy heifers and 16 U.S. Meat Animal Research Center beef heifers were classified by FF (High A4: A4 > 40 ng/mL and Control: A4 < 20 ng/mL) and/or cortex culture media (High A4 > 1 ng/mL/d or Control < 1 ng/mL/d). High A4 dairy heifers (n = 6) had greater A4 concentrations (7.6-fold) in FF and (98-fold) greater in ovarian cortex culture media with greater numbers of primordial and fewer later-stage follicles than Controls (n = 8) even after 7 d of culture. Also, the ovarian cortex had greater staining for Picro Sirius red in High A4 dairy heifers compared with Controls indicating increased fibrosis. Thecal cells from High A4 dairy heifers had greater STAR, LHCGR, CYP17A, CD68, and PECAM mRNA expression with increased mRNA abundance of CYP17A1 and CD68 in the ovarian cortex cultures compared with Control dairy heifers. Similarly, cortex culture media from High A4 beef heifers (n = 10) had increased A4 (290-fold; P ≤ 0.001), testosterone (1,427-fold; P ≤ 0.001), and progesterone (9-fold; P ≤ 0.01) compared with Control heifers with increased primordial follicles and decreased later-stage follicles even after 7 d of culture, indicating abnormal follicular development. High A4 ovarian cortex cultures from beef heifers also had increased fibrosis markers and greater expression of PECAM (P = 0.01) with a tendency for increased vascular endothelial cadherin compared with Controls (n = 6). These two trials support our hypothesis that naturally occurring androgen excess cows are present in other dairy and beef herds. The ability to identify these females that have excess A4 ovarian microenvironments may allow for their use in understanding factors causing abnormal follicle development linked to androgen excess and inflammation.
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Affiliation(s)
- Mohamed A Abedal-Majed
- Department of Animal Production, School of Agriculture, The University of Jordan, Amman, Jordan
| | - Shelby A Springman
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Hanan D Jafar
- Cell Therapy Center, The University of Jordan, Amman, Jordan.,Department of Anatomy and Histology, School of Medicine, The University of Jordan, Amman, Jordan
| | - Brooke E Bell
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Scott G Kurz
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Kyle E Wilson
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Andrea S Cupp
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
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McFee RM, Romereim SM, Snider AP, Summers AF, Pohlmeier WE, Kurz SG, Cushman RA, Davis JS, Wood JR, Cupp AS. A high-androgen microenvironment inhibits granulosa cell proliferation and alters cell identity. Mol Cell Endocrinol 2021; 531:111288. [PMID: 33905753 DOI: 10.1016/j.mce.2021.111288] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/17/2021] [Accepted: 04/19/2021] [Indexed: 12/31/2022]
Abstract
A naturally occurring bovine model with excess follicular fluid androstenedione (High A4), reduced fertility, and polycystic ovary syndrome (PCOS)-like characteristics has been identified. We hypothesized High A4 granulosa cells (GCs) would exhibit altered cell proliferation and/or steroidogenesis. Microarrays of Control and High A4 GCs combined with Ingenuity Pathway Analysis indicated that High A4 GCs had cell cycle inhibition and increased expression of microRNAs that inhibit cell cycle genes. Granulosa cell culture confirmed that A4 treatment decreased GC proliferation, increased anti-Müllerian hormone, and increased mRNA for CTNNBIP1. Increased CTNNBIP1 prevents CTNNB1 from interacting with members of the WNT signaling pathway thereby inhibiting the cell cycle. Expression of CYP17A1 was upregulated in High A4 GCs presumably due to reduced FOS mRNA expression compared to Control granulosa cells. Furthermore, comparisons of High A4 GC with thecal and luteal cell transcriptomes indicated an altered cellular identity and function contributing to a PCOS-like phenotype.
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Affiliation(s)
- Renee M McFee
- University of Nebraska-Lincoln, School of Veterinary Medicine and Biomedical Sciences, P.O. Box 830905, Lincoln, NE, 68583-0905, USA
| | - Sarah M Romereim
- University of Nebraska-Lincoln, Department of Animal Science, 3940 Fair Street, Lincoln, NE, 68583-0908, USA
| | - Alexandria P Snider
- University of Nebraska-Lincoln, Department of Animal Science, 3940 Fair Street, Lincoln, NE, 68583-0908, USA
| | - Adam F Summers
- New Mexico State University, Animal and Range Sciences, Knox Hall Room 202, MSC 3-I Las Cruces, NM 88003, USA
| | - William E Pohlmeier
- University of Nebraska-Lincoln, Department of Animal Science, 3940 Fair Street, Lincoln, NE, 68583-0908, USA
| | - Scott G Kurz
- University of Nebraska-Lincoln, Department of Animal Science, 3940 Fair Street, Lincoln, NE, 68583-0908, USA
| | - Robert A Cushman
- USDA, Agricultural Research Service, U.S. Meat Animal Research Center, P.O. Box 166, Clay Center, NE, 68933, USA
| | - John S Davis
- University of Nebraska Medical Center, Olson Center for Women's Health, 983255 Nebraska Medical Center, Omaha, NE, 68198-3255, USA; VA Nebraska-Western Iowa Health Care System, Omaha, NE, 68105, USA
| | - Jennifer R Wood
- University of Nebraska-Lincoln, Department of Animal Science, 3940 Fair Street, Lincoln, NE, 68583-0908, USA
| | - Andrea S Cupp
- University of Nebraska-Lincoln, Department of Animal Science, 3940 Fair Street, Lincoln, NE, 68583-0908, USA.
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Yan YL, Titus T, Desvignes T, BreMiller R, Batzel P, Sydes J, Farnsworth D, Dillon D, Wegner J, Phillips JB, Peirce J, Dowd J, Buck CL, Miller A, Westerfield M, Postlethwait JH. A fish with no sex: gonadal and adrenal functions partition between zebrafish NR5A1 co-orthologs. Genetics 2021; 217:iyaa030. [PMID: 33724412 PMCID: PMC8045690 DOI: 10.1093/genetics/iyaa030] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/16/2020] [Indexed: 02/06/2023] Open
Abstract
People with NR5A1 mutations experience testicular dysgenesis, ovotestes, or adrenal insufficiency, but we do not completely understand the origin of this phenotypic diversity. NR5A1 is expressed in gonadal soma precursor cells before expression of the sex-determining gene SRY. Many fish have two co-orthologs of NR5A1 that likely partitioned ancestral gene subfunctions between them. To explore ancestral roles of NR5A1, we knocked out nr5a1a and nr5a1b in zebrafish. Single-cell RNA-seq identified nr5a1a-expressing cells that co-expressed genes for steroid biosynthesis and the chemokine receptor Cxcl12a in 1-day postfertilization (dpf) embryos, as does the mammalian adrenal-gonadal (interrenal-gonadal) primordium. In 2dpf embryos, nr5a1a was expressed stronger in the interrenal-gonadal primordium than in the early hypothalamus but nr5a1b showed the reverse. Adult Leydig cells expressed both ohnologs and granulosa cells expressed nr5a1a stronger than nr5a1b. Mutants for nr5a1a lacked the interrenal, formed incompletely differentiated testes, had no Leydig cells, and grew far larger than normal fish. Mutants for nr5a1b formed a disorganized interrenal and their gonads completely disappeared. All homozygous mutant genotypes lacked secondary sex characteristics, including male breeding tubercles and female sex papillae, and had exceedingly low levels of estradiol, 11-ketotestosterone, and cortisol. RNA-seq showed that at 21dpf, some animals were developing as females and others were not, independent of nr5a1 genotype. By 35dpf, all mutant genotypes greatly under-expressed ovary-biased genes. Because adult nr5a1a mutants form gonads but lack an interrenal and conversely, adult nr5a1b mutants lack a gonad but have an interrenal, the adrenal, and gonadal functions of the ancestral nr5a1 gene partitioned between ohnologs after the teleost genome duplication, likely owing to reciprocal loss of ancestral tissue-specific regulatory elements. Identifying such elements could provide hints to otherwise unexplained cases of Differences in Sex Development.
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Affiliation(s)
- Yi-Lin Yan
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Tom Titus
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Thomas Desvignes
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Ruth BreMiller
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Peter Batzel
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Jason Sydes
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Dylan Farnsworth
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Danielle Dillon
- Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Jeremy Wegner
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | | | - Judy Peirce
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - John Dowd
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | | | - Charles Loren Buck
- Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Adam Miller
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
| | - Monte Westerfield
- Institute of Neuroscience, University of Oregon, Eugene, OR 97403, USA
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Wang F, Xie N, Zhou J, Dai M, Zhang Q, Hardiman PJ, Qu F. Molecular mechanisms underlying altered neurobehavioural development of female offspring of mothers with polycystic ovary syndrome: FOS-mediated regulation of neurotrophins in placenta. EBioMedicine 2020; 60:102993. [PMID: 32949999 PMCID: PMC7501055 DOI: 10.1016/j.ebiom.2020.102993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/31/2020] [Accepted: 08/24/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND This study explored the mechanisms underlying altered neurobehavioural development of female offspring born to mothers with polycystic ovary syndrome (PCOS). METHODS In total, 20 women with PCOS and 32 healthy women who underwent caesarean deliveries with a single female foetus were recruited. Infants were assessed with Dubowitz scoring. Swan71 cell line with stable FOS overexpression was used to verify the regulatory effects of FOS on brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) expression. Learning and memory in female first-generation (F1) and second-generation (F2) offspring in a rat model of PCOS was tested using the Morris water maze at puberty and adulthood. Transcriptome analysis of pubertal hippocampi and hypothalami of female F1 offspring was conducted. FINDINGS Total score and behaviour subscales of Dubowitz scoring were significantly lower in female infants of women with PCOS. FOS and NGF protein levels were downregulated in placental villi of the PCOS group. FOS played a key role in BDNF inhibition and enhancing NGF in Swan71 cells. PCOS female F1 rats exhibited lower target crossing times during puberty when compared to controls. Transcriptome analysis revealed significant changes in hippocampal and hypothalamic neuronal pathways in female F1 rats at puberty. INTERPRETATION FOS regulation of neurotrophins in the placenta negatively affects neurobehavioural development of female offspring of PCOS mothers. FUNDING This study was funded by the National Key R&D Program of China (2018YFC1004900 to F.Q. and F.W.) and the National Natural Science Foundation of China (81874480 to F.Q.; 81873837 to F.W.).
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Affiliation(s)
- Fangfang Wang
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Ningning Xie
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Jue Zhou
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Minchen Dai
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Qing Zhang
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Paul J Hardiman
- Institute for Women's Health, University College London, London NW3 2PF, United Kingdom
| | - Fan Qu
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China; Institute for Women's Health, University College London, London NW3 2PF, United Kingdom.
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Cryptotanshinone Regulates Androgen Synthesis through the ERK/c-Fos/CYP17 Pathway in Porcine Granulosa Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:5985703. [PMID: 28167972 PMCID: PMC5266823 DOI: 10.1155/2017/5985703] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/08/2016] [Indexed: 12/21/2022]
Abstract
The aim of the study is to investigate the molecular mechanism behind androgen reduction in porcine granulosa cells (pGCs) with Salvia miltiorrhiza Bunge extract cryptotanshinone. PGCs were isolated from porcine ovaries and identified. Androgen excess model of the pGCs was induced with the MAPK inhibitor PD98059 and then treated with cryptotanshinone. The testosterone level was measured by radioimmunoassay in the culture media. The protein levels of P-ERK1/2, c-Fos, and CYP17 in the cells were measured by western blot. Cryptotanshinone decreased the concentration of testosterone and the protein level of CYP17 and increased the protein levels of P-ERK1/2 and c-Fos in the androgen excess mode. After the c-Fos gene was silenced by infection with c-Fos shRNA lentivirus, we measured the mRNA expression by quantitative RT-PCR and protein level by western blot of P-ERK1/2, c-Fos, and CYP17. This showed that the mRNA expression and protein level of P-ERK1/2 and c-Fos were significantly reduced in the shRNA–c-Fos group compared to the scrambled group, while those of CYP17 were significantly increased. So we concluded that cryptotanshinone can significantly reduce the androgen excess induced by PD98059 in pGCs. The possible molecular mechanism for this activity is regulating the ERK/c-Fos/CYP17 pathway.
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Huang X, Jin J, Shen S, Xia Y, Xu P, Zou X, Wang H, Yi L, Wang Y, Gao Q. Modulation of expression of 17-Hydroxylase/17,20 lyase (CYP17) and P450 aromatase (CYP19) by inhibition of MEK1 in a human ovarian granulosa-like tumor cell line. Gynecol Endocrinol 2016; 32:201-5. [PMID: 26526982 DOI: 10.3109/09513590.2015.1106470] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The differential steroid production in the theca and granulosa cells in ovary are resulted from unique enzyme expression profiles. Among them, c-fos, a downstream target of mitogen and extracellular signal-regulated kinases (MEK/ERK) signaling, takes part in this compartment. In this study, we investigated the effect of c-fos on the steady-state levels of CYP17 and CYP19 in human ovarian granulosa-like tumor cell line (KGN) by inhibiting MEK/ERK pathway with PD98059. As a result, our finding demonstrated the distinct distribution patterns of CYP17 and CYP19 in KGN. Moreover, the MEK/ERK pathway functions to inhibit the production of CYP17, while enhance the production of CYP19 in granulosa cells, probably involving a c-fos-dependent mechanism. In conclusion, factors such as c-fos may play a crucial role in the down-regulation of CYP17 and up-regulation of CYP19 in granulosa cells, thereby suppressing androstenedione synthesis.
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Affiliation(s)
- Xiao Huang
- a State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University , Nanjing , China and
| | - Jiewen Jin
- a State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University , Nanjing , China and
| | - Shanmei Shen
- b Divisions of Endocrinology , The Affiliated Drum Tower Hospital, Medical School, Nanjing University , Nanjing , China
| | - Yanjie Xia
- a State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University , Nanjing , China and
| | - Pei Xu
- a State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University , Nanjing , China and
| | - Xiang Zou
- a State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University , Nanjing , China and
| | - Hongwei Wang
- a State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University , Nanjing , China and
| | - Long Yi
- a State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University , Nanjing , China and
| | - Yong Wang
- a State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University , Nanjing , China and
| | - Qian Gao
- a State Key Laboratory of Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University , Nanjing , China and
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Blaha M, Nemcova L, Kepkova KV, Vodicka P, Prochazka R. Gene expression analysis of pig cumulus-oocyte complexes stimulated in vitro with follicle stimulating hormone or epidermal growth factor-like peptides. Reprod Biol Endocrinol 2015; 13:113. [PMID: 26445099 PMCID: PMC4596359 DOI: 10.1186/s12958-015-0112-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 10/02/2015] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The gonadotropin-induced resumption of oocyte meiosis in preovulatory follicles is preceded by expression of epidermal growth factor (EGF)-like peptides, amphiregulin (AREG) and epiregulin (EREG), in mural granulosa and cumulus cells. Both the gonadotropins and the EGF-like peptides possess the capacity to stimulate resumption of oocyte meiosis in vitro via activation of a broad signaling network in cumulus cells. To better understand the rapid genomic actions of gonadotropins (FSH) and EGF-like peptides, we analyzed transcriptomes of cumulus cells at 3 h after their stimulation. METHODS We hybridized aRNA from cumulus cells to a pig oligonucleotide microarray and compared the transcriptomes of FSH- and AREG/EREG-stimulated cumulus cells with untreated control cells and vice versa. The identified over- and underexpressed genes were subjected to functional genomic analysis according to their molecular and cellular functions. The expression pattern of 50 selected genes with a known or potential function in ovarian development was verified by real-time qRT-PCR. RESULTS Both FSH and AREG/EREG increased the expression of genes associated with regulation of cell proliferation, cell migration, blood coagulation and extracellular matrix remodeling. FSH alone induced the expression of genes involved in inflammatory response and in the response to reactive oxygen species. Moreover, FSH stimulated the expression of genes closely related to some ovulatory events either exclusively or significantly more than AREG/EREG (AREG, ADAMTS1, HAS2, TNFAIP6, PLAUR, PLAT, and HSD17B7). In contrast to AREG/EREG, FSH also increased the expression of genes coding for key transcription factors (CEBPB, FOS, ID1/3, and NR5A2), which may contribute to the differing expression profiles of FSH- and AREG/EREG-treated cumulus cells. CONCLUSIONS The impact of FSH on cumulus cell gene transcription was higher than the impact of EGF-like factors in terms of the number of cell functions affected as well as the number of over- and underexpressed genes. Both FSH and EGF-like factors overexpressed genes involved in the post-ovulatory switch in steroidogenesis and tissue remodelling. However, FSH was remarkably more efficient in the up-regulation of several specific genes essential for ovulation of matured oocytes and also genes that been reported to play an important role in maturation of cumulus-enclosed oocytes in vitro.
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Affiliation(s)
- Milan Blaha
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics, The Czech Academy of Sciences, Rumburska 89, 277 21, Libechov, Czech Republic
| | - Lucie Nemcova
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics, The Czech Academy of Sciences, Rumburska 89, 277 21, Libechov, Czech Republic
| | - Katerina Vodickova Kepkova
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics, The Czech Academy of Sciences, Rumburska 89, 277 21, Libechov, Czech Republic
| | - Petr Vodicka
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Radek Prochazka
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics, The Czech Academy of Sciences, Rumburska 89, 277 21, Libechov, Czech Republic.
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11
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Uchida S. Sympathetic regulation of estradiol secretion from the ovary. Auton Neurosci 2014; 187:27-35. [PMID: 25465703 DOI: 10.1016/j.autneu.2014.10.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 09/26/2014] [Accepted: 10/24/2014] [Indexed: 11/24/2022]
Abstract
It is well known that hormone secretion from endocrine glands is regulated by hierarchical feedback mechanisms. However, although Cannon revealed in the 1920s that sympathoadrenal medullary function increased during emergency situations, no studies on the autonomic nervous regulation of hormone secretion have been undertaken for many years. In the past 40 years, the autonomic nervous regulation of insulin secretion from the pancreas, gastrin secretion from the stomach, glucocorticoid secretion from the adrenal cortex, etc., has been demonstrated. Estradiol secretion from the ovary is strongly controlled by the hypothalamic-pituitary-ovarian axis, and its possible regulation by autonomic nerves has been largely unnoticed. Some histological studies have revealed rich adrenergic sympathetic innervation in the ovary. Recently, it has been demonstrated that the activation of the sympathetic nerves to the ovary directly reduces estradiol secretion from the ovary. This article reviews physiological and morphological studies, primarily in rats, on the sympathetic regulation of estradiol secretion from the ovary.
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Affiliation(s)
- Sae Uchida
- Department of Autonomic Neuroscience, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo 173-0015, Japan.
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12
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Uchida S, Kagitani F. Effects of electrical stimulation of autonomic nerves to the ovary on the ovarian testosterone secretion rate in rats. Auton Neurosci 2013; 180:48-52. [PMID: 24220239 DOI: 10.1016/j.autneu.2013.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 09/26/2013] [Accepted: 10/21/2013] [Indexed: 11/25/2022]
Abstract
Previously, we demonstrated that electrical stimulation of the superior ovarian nerve (SON), but not the ovarian nerve plexus (ONP), reduces the secretion rate of estradiol from the ovary via activation of alpha 2-adrenoceptors in rats. The inhibitory effect of SON on estradiol secretion may be due to reduced production of testosterone, a direct precursor of estradiol. Here, we examined the effects of electrical stimulation of the SON and the ONP on ovarian testosterone secretion in rats. On the day of estrous, ovarian venous blood samples were collected intermittently from the ovarian vein. The secretion rate of testosterone from the ovary was calculated from the difference in the testosterone concentration between ovarian venous plasma and systemic arterial blood plasma, and the rate of ovarian venous plasma flow. Stimulation of either the SON or ONP reduced the secretion rate of testosterone from the ovary. The reduction of the testosterone secretion rate by SON stimulation was not influenced by an alpha 2-adrenoceptor antagonist (yohimbine), but it was abolished by an alpha 1-adrenoceptor antagonist (prazosin). Our results show that ovarian nerves have an inhibitory role in ovarian testosterone secretion, via activation of alpha 1-adrenoceptors, but not alpha 2-adrenoceptors. This, therefore, indicates that the reduction of estradiol secretion by SON stimulation is independent of the reduction of testosterone secretion.
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Affiliation(s)
- Sae Uchida
- Department of Autonomic Neuroscience, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo 173-0015, Japan.
| | - Fusako Kagitani
- Department of Autonomic Neuroscience, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo 173-0015, Japan
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13
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Hofland J, Steenbergen J, Hofland LJ, van Koetsveld PM, Eijken M, van Nederveen FH, Kazemier G, de Herder WW, Feelders RA, de Jong FH. Protein kinase C-induced activin A switches adrenocortical steroidogenesis to aldosterone by suppressing CYP17A1 expression. Am J Physiol Endocrinol Metab 2013; 305:E736-44. [PMID: 23900415 DOI: 10.1152/ajpendo.00034.2013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Functional zonation of the adrenal cortex is a consequence of the zone-specific expression of P450c17 (CYP17A1) and its cofactors. Activin and inhibin peptides are differentially produced within the zones of the adrenal cortex and have been implicated in steroidogenic control. In this study, we investigated whether activin and inhibin can function as intermediates in functional zonation of the human adrenal cortex. Activin A suppressed CYP17A1 expression and P450c17 function in adrenocortical cell lines as well as in primary adrenal cell cultures. Inhibin βA-subunit mRNA and activin A protein levels were found to be increased up to 1,900-fold and 49-fold, respectively, after protein kinase C (PKC) stimulation through PMA or angiotensin II in H295R adrenocortical carcinoma cells. This was confirmed in HAC15 cells and for PMA in primary adrenal cell cultures. Both PMA and Ang II decreased CYP17A1 expression in the adrenocortical cell lines, whereas PMA concurrently suppressed CYP17A1 levels in the primary cultures. Inhibition of activin signaling during PKC stimulation through silencing of the inhibin βA-subunit or blocking of the activin type I receptor opposed the PMA-induced downregulation of CYP17A1 expression and P450c17 function. In contrast, PKA stimulation through adrenocorticotrophin or forskolin increased expression of the inhibin α-subunit and betaglycan, both of which are antagonists of activin action. These data indicate that activin A acts as a PKC-induced paracrine factor involved in the suppression of CYP17A1 in the zona glomerulosa and can thereby contribute to functional adrenocortical zonation.
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14
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Jones MR, Chazenbalk G, Xu N, Chua AK, Eigler T, Mengesha E, Chen YH, Lee JM, Pall M, Li X, Chen YDI, Taylor KD, Mathur R, Krauss RM, Rotter JI, Legro RS, Azziz R, Goodarzi MO. Steroidogenic regulatory factor FOS is underexpressed in polycystic ovary syndrome (PCOS) adipose tissue and genetically associated with PCOS susceptibility. J Clin Endocrinol Metab 2012; 97:E1750-7. [PMID: 22723319 PMCID: PMC3431575 DOI: 10.1210/jc.2011-2153] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Polycystic ovary syndrome (PCOS) is a heterogeneous common genetic disorder characterized by hyperandrogenemia and insulin resistance. Alterations in gene expression profiles of the ovary and adipose tissue identified the candidate gene FBJ murine osteosarcoma viral oncogene homolog (FOS) for further investigation of expression changes in metabolic tissues and genetic studies. OBJECTIVE The objective of the study was to confirm the underexpression of the FOS gene in sc adipose and determine whether variants in this gene are risk factors for PCOS. DESIGN RT-PCR was performed in sc fat from women with and without PCOS. Genotyping of single-nucleotide polymorphisms in the FOS locus was performed to test for association with PCOS. SETTING The study was conducted at a tertiary care academic institution. PARTICIPANTS Twenty-two PCOS and 13 control subjects were recruited for gene expression studies. We assembled a discovery genotyping cohort of 354 cases and 161 controls and a replication cohort of 476 cases and 315 controls, all of whom were Caucasian. MAIN MEASUREMENTS Gene expression by quantitative real-time RT-PCR, FOS genotype, and PCOS status were measured. RESULTS FOS expression was confirmed to be reduced in PCOS adipose tissue. Three single-nucleotide polymorphisms were significantly associated with PCOS in the discovery cohort (rs8006998, P = 0.0031; rs8013918, P = 0.0006; rs8013942, P = 0.0087). rs8006998 was also associated with PCOS in the replication cohort (P = 0.013). CONCLUSIONS Differential gene expression in sc fat and genetic association at the FOS locus in PCOS subjects implicates a role for this transcription factor in PCOS. FOS dysfunction may be a common factor between hyperandrogenism and insulin resistance.
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Affiliation(s)
- Michelle R Jones
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, California 90048, USA
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15
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Ortega I, Villanueva JA, Wong DH, Cress AB, Sokalska A, Stanley SD, Duleba AJ. Resveratrol reduces steroidogenesis in rat ovarian theca-interstitial cells: the role of inhibition of Akt/PKB signaling pathway. Endocrinology 2012; 153:4019-29. [PMID: 22719052 PMCID: PMC3404354 DOI: 10.1210/en.2012-1385] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Polycystic ovary syndrome is characterized by theca-interstitial hyperplasia and increased expression of steroidogenic genes, leading to excessive androgen production. Resveratrol, a natural polyphenol, promotes apoptosis and reduces rat theca-interstitial cell growth, in part by inhibiting the mevalonate pathway and decreasing the availability of substrates of isoprenylation [farnesyl-pyrophosphate (FPP) and geranylgeranyl-pyrophosphate (GGPP)]. This study evaluated the effect of resveratrol on rat theca-interstitial cell steroidogenesis. Because resveratrol may activate sirtuins, this study also investigated whether steroidogenesis was affected by sirtuin inhibitors (nicotinamide, sirtinol). Theca-interstitial cells were cultured with or without resveratrol (1-10 μm), GGPP (30 μm), FPP (30 μm), nicotinamide (1 mm), and/or sirtinol (10 μm). Resveratrol did not affect progesterone levels but reduced androgen production in a concentration-dependent fashion (androstenedione by up to 78% and androsterone by up to 76%). This inhibitory effect correlated with a decrease in mRNA expression of genes regulating androgen production, especially Cyp17a1 (by up to 73%). GGPP and FPP had no effect on androgen levels and Cyp17a1 mRNA levels and did not alter the effects induced by resveratrol. Similarly, sirtuin inhibitors did not reverse resveratrol-induced inhibition of steroidogenesis. However, resveratrol decreased activity of serine-threonine kinase/protein kinase B pathway, a cell-signaling pathway involved in ovarian steroidogenesis. The present findings indicate that resveratrol reduces androgen production primarily by inhibiting Cyp17a1 mRNA expression, and this inhibition may be mediated, in part, by blocking the activity of the serine-threonine kinase/protein kinase B pathway. These findings may be of clinical relevance to conditions associated with excessive production of androgens by theca cells, such as polycystic ovary syndrome.
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Affiliation(s)
- Israel Ortega
- Department of Obstetrics and Gynecology, University of California, Davis, 4860 Y Street, Sacramento, California 95817, USA
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16
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Chazenbalk G, Chen YH, Heneidi S, Lee JM, Pall M, Chen YDI, Azziz R. Abnormal expression of genes involved in inflammation, lipid metabolism, and Wnt signaling in the adipose tissue of polycystic ovary syndrome. J Clin Endocrinol Metab 2012; 97:E765-70. [PMID: 22344199 PMCID: PMC3339894 DOI: 10.1210/jc.2011-2377] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CONTEXT Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders in women. OBJECTIVE Our objective was to compare gene expression pattern in sc abdominal adipose tissue in nonobese PCOS patients vs. body mass index-matched controls. RESEARCH DESIGN AND METHODS Eleven PCOS subjects and 12 controls (body mass index 20-28 kg/m(2)) were recruited. Total RNA was isolated, and gene expression profiling was performed using Affymetrix Human Genome U133 arrays. Differentially expressed genes were classified by gene ontology. Microarray results for selected genes were confirmed by quantitative real-time PCR (RT-qPCR). Frequently sampled iv glucose tolerance tests were used to assess dynamic insulin sensitivity. RESULTS Ninety-six genes were identified with altered expression of at least 2-fold in nonobese PCOS adipose tissues. Inflammatory response genes were significantly down-regulated. RT-qPCR confirmed decreases in expression of IL6 (12.3-fold), CXCL2 (18.3-fold), and SOCS3 (22.6-fold). Lipid metabolism genes associated with insulin resistance were significantly up-regulated, with confirmed increases in DHRS9 (2.5-fold), UCLH1 (2.6-fold), and FADS1 (2.8-fold) expression. Wnt signaling genes (DKK2, JUN, and FOSB) were differentially expressed. RT-qPCR confirmed significant expression changes in DKK2 (1.9-fold increase), JUN (4.1-fold decrease), and FOSB (60-fold decrease). CONCLUSIONS Genes involved in inflammation, lipid metabolism, and Wnt signaling are differentially expressed in nonobese PCOS adipose tissue. Because these genes are known to affect adipogenesis and insulin resistance, we hypothesize that their dysregulation may contribute to the metabolic abnormalities observed in women with PCOS.
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Affiliation(s)
- Gregorio Chazenbalk
- Department of Obstetrics/Gynecology, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA
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Sirianni R, Nogueira E, Bassett MH, Carr BR, Suzuki T, Pezzi V, Andò S, Rainey WE. The AP-1 family member FOS blocks transcriptional activity of the nuclear receptor steroidogenic factor 1. J Cell Sci 2010; 123:3956-65. [PMID: 20980388 DOI: 10.1242/jcs.055806] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Steroid production in the adrenal zona glomerulosa is under the control of angiotensin II (Ang II), which, upon binding to its receptor, activates protein kinase C (PKC) within these cells. PKC is a potent inhibitor of the steroidogenic enzyme CYP17. We have demonstrated that, in the ovary, PKC activates expression of FOS, a member of the AP-1 family, and increased expression of this gene is linked to CYP17 downregulation. However, the pathway and the molecular mechanism responsible for the inhibitory effect of PKC on CYP17 expression are not defined. Herein, we demonstrated that Ang II inhibited CYP17 through PKC and ERK1/2-activated FOS and that blocking FOS expression decreased PKC-mediated inhibition. Although CYP17 transcription was activated by the nuclear receptor SF-1, expression of FOS resulted in a decrease in SF-1-mediated gene transcription. FOS physically interacted with the hinge region of SF-1 and modulated its transactivity, thus preventing binding of cofactors such as SRC1 and CBP, which were necessary to fully activate CYP17 transcription. Collectively, these results indicate a new regulatory mechanism for SF-1 transcriptional activity that might influence adrenal zone-specific expression of CYP17, a mechanism that can potentially be applied to other steroidogenic tissues.
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Affiliation(s)
- Rosa Sirianni
- Department of Pharmaco-Biology and Cell Biology, University of Calabria, Arcavacata di Rende (CS) 87036, Italy
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Baptiste CG, Battista MC, Trottier A, Baillargeon JP. Insulin and hyperandrogenism in women with polycystic ovary syndrome. J Steroid Biochem Mol Biol 2010; 122:42-52. [PMID: 20036327 PMCID: PMC3846536 DOI: 10.1016/j.jsbmb.2009.12.010] [Citation(s) in RCA: 174] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2009] [Revised: 12/15/2009] [Accepted: 12/18/2009] [Indexed: 01/23/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a very common endocrine disorder characterized by chronic anovulation, clinical and/or biochemical hyperandrogenism, and/or polycystic ovaries. But most experts consider that hyperandrogenism is the main characteristic of PCOS. Several theories propose different mechanisms to explain PCOS manifestations: (1) a primary enzymatic default in the ovarian and/or adrenal steroidogenesis; (2) an impairment in gonadotropin releasing hormone (GnRH) secretion that promotes luteal hormone (LH) secretion; or (3) alterations in insulin actions that lead to insulin resistance with compensatory hyperinsulinemia. However, in the past 20 years there has been growing evidence supporting that defects in insulin actions or in the insulin signalling pathways are central in the pathogenesis of the syndrome. Indeed, most women with PCOS are metabolically insulin resistant, in part due to genetic predisposition and in part secondary to obesity. But some women with typical PCOS do not display insulin resistance, which supports the hypothesis of a genetic predisposition specific to PCOS that would be revealed by the development of insulin resistance and compensatory hyperinsulinemia in most, but not all, women with PCOS. However, these hypotheses are not yet appropriately confirmed, and more research is still needed to unravel the true pathogenesis underlying this syndrome. The present review thus aims at discussing new concepts and findings regarding insulin actions in PCOS women and how it is related to hyperandrogenemia.
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Zhang D, Zheng H, Zhao J, Lin L, Li C, Liu J, Pan Y. Porphorymonas gingivalis induces intracellular adhesion molecule-1 expression in endothelial cells through the nuclear factor-kappaB pathway, but not through the p38 MAPK pathway. J Periodontal Res 2010; 46:31-8. [DOI: 10.1111/j.1600-0765.2010.01305.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Patel SS, Beshay VE, Escobar JC, Carr BR. 17α-Hydroxylase (CYP17) expression and subsequent androstenedione production in the human ovary. Reprod Sci 2010; 17:978-86. [PMID: 20720262 DOI: 10.1177/1933719110379055] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Traditionally, in women, only the theca cells in the ovary and the zona reticularis layer of the adrenal cortex are believed to synthesize androgens. Interestingly, their neighboring cell layers, the granulosa cells and the zona glomerulosa cells, respectively, do not produce androgens. Recent literature has highlighted the role of the activator protein (AP-1) transcription factor, c-Fos, in the dynamics of this structural and functional relationship. Differential expression of c-Fos is believed to result in distinct patterns of steroidogenesis among these compartments in both the ovary and the adrenal glands. Clinically, deficient c-Fos levels have been implicated in the pathogenesis of polycystic ovary syndrome (PCOS). In this review, we discuss the pivotal role of c-Fos in controlling the expression of CYP17 and hence androgen production in various organ systems throughout the human body.
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Affiliation(s)
- Satin S Patel
- Division of Reproductive Endocrinology and Infertility, University of Texas at Southwestern Medical Center, Dallas, TX 75390, USA.
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21
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Patel SS, Beshay VE, Escobar JC, Suzuki T, Carr BR. Molecular mechanism for repression of 17alpha-hydroxylase expression and androstenedione production in granulosa cells. J Clin Endocrinol Metab 2009; 94:5163-8. [PMID: 19850690 DOI: 10.1210/jc.2009-1341] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
CONTEXT According to the traditional two-cell two-gonadotropin model of follicular steroidogenesis, androgen production arises exclusively from theca cells. The granulosa cells, in turn, utilize androstenedione and testosterone, which are aromatized into estrone and estradiol, respectively. Differential expression of the activator protein-1 (AP-1) transcription factor, c-fos, has been postulated to result in distinct patterns of steroidogenesis in the theca and granulosa cell compartments. We hypothesize that c-fos functions to inhibit the production of 17alpha-hydroxylase 17,20 lyase (CYP17) in granulosa cells, thereby suppressing androgen synthesis. OBJECTIVE Our objective was to define the role of c-fos in the regulation of CYP17 production in granulosa cells. DESIGN AND METHODS Human luteinized granulosa (HGL5) cells were utilized for all experiments. The following techniques were used: mRNA extraction, steroid quantification, small interfering RNA silencing, microarray analysis, and immunohistochemistry. RESULTS Immunohistochemistry studies demonstrated significant staining of c-fos in the granulosa cell layer, but absent staining for CYP17. Conversely, the theca cell layer did not stain for c-fos, but staining was evident for CYP17. Treatment of HGL5 cells with the MAPK kinase inhibitor PD98059 resulted in an 11-fold increase in CYP17 mRNA levels. In c-fos gene silenced cells, CYP17 mRNA levels increased 8-fold. Androstenedione production was increased 13-fold after treatment with PD98059. CONCLUSIONS These results suggest that the AP-1 transcription factor, c-fos, may be one of the factors responsible for CYP17 repression and hence suppression of androstenedione production in granulosa cells. This may provide an explanation for the lack of CYP17 in granulosa cells.
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Affiliation(s)
- Satin S Patel
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9032, USA
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22
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Grafer CM, Thomas R, Lambrakos L, Montoya I, White S, Halvorson LM. GnRH stimulates expression of PACAP in the pituitary gonadotropes via both the PKA and PKC signaling systems. Mol Endocrinol 2009; 23:1022-32. [PMID: 19342443 DOI: 10.1210/me.2008-0477] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Recent studies have demonstrated a clear role for pituitary adenylate cyclase-activating polypeptide (PACAP) in the regulation of gonadotropin biosynthesis and secretion, both alone and in conjunction with GnRH. First defined as a hypothalamic releasing factor, PACAP subsequently has been identified in the gonadotrope subpopulation of the anterior pituitary gland, suggesting that PACAP may act as an autocrine-paracrine factor in this tissue. In initial studies, we determined that GnRH markedly stimulated endogenous PACAP mRNA levels and promoter-reporter activity in the mature gonadotrope cell line, LbetaT2. GnRH-stimulated rat PACAP promoter activity was blunted with deletion from position -915 to -402 and eliminated with further truncation to position -77 relative to the transcriptional start site. Site-directed mutagenesis demonstrated a functional requirement for a cAMP response element (CRE)-like site at position -205 and an activating protein-1 (AP-1)-like site at position -275, both of which bound CRE binding protein and AP-1 family members on EMSA. Treatment with pharmacological activators or inhibitors of second messenger signaling pathways implicated the protein kinase A, protein kinase C, and MAPK pathways in the GnRH response. In support of these in vitro data, we demonstrate that JunB binds to the rat PACAP gene promoter by chromatin immunoprecipitation assay and that small interfering RNA knockdown of JunB, cFos, and CRE binding protein factors blunts PACAP expression. In summary, these results further elucidate the complex functional interactions between PACAP and GnRH in the anterior pituitary. Specifically, these studies demonstrate that GnRH-stimulated PACAP gene expression is mediated via multiple signaling pathways acting on CRE/AP-1 sites in the proximal gene promoter. Because both PACAP and GnRH regulate gonadotropin biosynthesis and secretion, these results provide important insight into the critical fine tuning of gonadotrope function and, thereby, the maintenance of normal reproductive function.
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Affiliation(s)
- Constance M Grafer
- Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas 75390-9032, USA
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23
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Patel SS, Carrick KS, Carr BR. Virilization persists in a woman with an androgen-secreting granulosa cell tumor. Fertil Steril 2009; 91:933.e13-5. [DOI: 10.1016/j.fertnstert.2008.10.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Revised: 10/16/2008] [Accepted: 10/17/2008] [Indexed: 11/24/2022]
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Chaturvedi G, Arai K, Terranova PF, Roby KF. The Src tyrosine kinase pathway regulates thecal CYP17 expression and androstenedione secretion. Mol Cell Biochem 2008; 318:191-200. [PMID: 18642057 DOI: 10.1007/s11010-008-9871-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Accepted: 07/03/2008] [Indexed: 11/25/2022]
Abstract
In order to evaluate the role of Src tyrosine kinase in thecal cell steroidogenesis, a pharmacological approach was utilized by treating enriched populations of mouse ovarian theca-interstitial cells in vitro with a direct Src kinase inhibitor, PP2. Inhibition of Src with PP2 increased both basal and forskolin-stimulated androstenedione secretion, and increased cytochrome P450 17-alpha hydroxylase-lyase (CYP17) promoter activity and steady state mRNA. PP2 did not change thecal levels of StAR mRNA. Inhibition of mitogen-activated protein kinase kinase, a downstream regulator of Src activity, using PD98059 also increased forskolin-stimulated secretion of androstenedione above forskolin alone, but had no effect on basal secretion of androstenedione. Src inhibition increased mitogen-activated protein kinase phosphatase-1 protein and decreased phosphorylation of SF-1, which correlated with increased CYP17 promoter activity and mRNA levels. These results implicate Src tyrosine kinase in the regulation of CYP17 and thecal androgen secretion.
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Affiliation(s)
- Gaurav Chaturvedi
- Department of Molecular and Integrative Physiology, The Center for Reproductive Sciences, University of Kansas Medical Center, Kansas City, KS 66160, USA
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