1
|
Tang ZR, Deng SL, Lian ZX, Yu K. Terazosin reduces steroidogenic factor 1 and upregulates heat shock protein 90 expression in LH-induced bovine ovarian theca cells. Free Radic Biol Med 2021; 163:190-195. [PMID: 33352221 DOI: 10.1016/j.freeradbiomed.2020.12.016] [Citation(s) in RCA: 3] [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] [Received: 08/27/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 01/19/2023]
Abstract
Hyperthecosis syndrome is a common endocrine system metabolic disorder in women of childbearing age. The main symptoms are elevated androgen levels, abnormal ovulation, and excessive oxidative stress. Currently, there is no effective treatment for hyperthecosis syndrome. α(1)-adrenergic receptor (ADRA1) is involved in the metabolic pathway of ovarian steroid hormone. This study studied the mechanism of the ADRA1 inhibitor terazosin in the LH-induced bovine theca cells in vitro. We found that terazosin regulates the expression of steroidogenic factor 1 (SF1) and downstream genes through the ERK1/2 pathway, reducing androgen content. Terazosin promotes the expression of HSP90 and reduces the activity of iNOS. In addition, Terazosin up-regulates the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and its downstream gene γ-GCS, which improves the ability of theca cells to resist oxidative stress. This study provides a reference for the treatment of human hyperthecosis syndrome.
Collapse
Affiliation(s)
- Zi-Run Tang
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Shou-Long Deng
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zheng-Xing Lian
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Kun Yu
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
| |
Collapse
|
2
|
Tamura K, Naraba H, Hara T, Nakamura K, Yoshie M, Kogo H, Tachikawa E. A positive feedback loop between progesterone and microsomal prostaglandin E synthase-1-mediated PGE2 promotes production of both in mouse granulosa cells. Prostaglandins Other Lipid Mediat 2016; 123:56-62. [DOI: 10.1016/j.prostaglandins.2016.05.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 04/30/2016] [Accepted: 05/04/2016] [Indexed: 12/26/2022]
|
3
|
Paracrine Regulation of Steroidogenesis in Theca Cells by Granulosa Cells Derived from Mouse Preantral Follicles. BIOMED RESEARCH INTERNATIONAL 2015; 2015:925691. [PMID: 26357661 PMCID: PMC4556819 DOI: 10.1155/2015/925691] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Revised: 06/14/2015] [Accepted: 06/28/2015] [Indexed: 12/11/2022]
Abstract
Interaction partners of follicular cells play a significant role in steroidogenesis, follicular formation, and development. Androgen secreted by theca cells (TCs) can initiate follicle development and ovulation and provide precursor materials for estrogen synthesis. Therefore, studies on ovarian microenvironment will not only lead to better understanding of the steroidogenesis but also have clinical significance for ovarian endocrine abnormalities such as hyperandrogenism in polycystic ovary syndrome (PCOS). This study applied the Transwell coculture model to investigate if the interaction between granulosa and theca cells may affect androgen production in theca cells. Concentrations of testosterone and androstenedione in the spent medium were measured by radioimmunoassay and enzyme linked immunosorbent assay, respectively. The results show that the coculture with granulosa cells (GCs) increases steroidogenesis in TCs. In addition, testosterone and androstenedione productions in response to LH stimulation were also increased in the coculture model. Significantly increased mRNA expressions of steroidogenic enzymes (Star, Cyp11a1, Cyp17a1, and Hsd3b2) were observed in the cocultured TCs. Thus, GCs were capable of promoting steroidogenesis and LH responsiveness in TCs. This study provided a basis for further exploration of ovarian endocrine mechanism and pathologies.
Collapse
|
4
|
Gao LL, Liu XQ, Xu BQ, Jiang SW, Cui YG, Liu JY. SET/PP2A system regulates androgen production in ovarian follicles in vitro. Mol Cell Endocrinol 2013; 374:108-16. [PMID: 23628604 DOI: 10.1016/j.mce.2013.04.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Revised: 03/15/2013] [Accepted: 04/19/2013] [Indexed: 01/31/2023]
Abstract
SET has multiple cell functions including nucleosome assembly, histone binding, transcription control, and cell apoptosis. In ovaries SET is predominantly expressed in theca cells and oocytes. In our study, SET overexpression in theca cells stimulated testosterone production whereas SET knockdown decreased testosterone production. Moreover, SET negatively regulated PP2A activity. Treatment with PP2A inhibitor okadaic acid (OA) led to increased testosterone synthesis, while treatment with PP2A activators resulted in the decreased testosterone synthesis. Furthermore, PP2A knockdown confirmed the key role of PP2A in the testosterone synthesis, and OA was able to block the AdH1-SiRNA/SET-mediated inhibition of testosterone production. The central role of PP2A in SET-mediated regulation of testosterone production was confirmed by the finding that SET promoted the lyase activity of P450c17 and that PP2A inhibited its lyase activity. Taken together, these results reveal a specific, SET-initiated, PP2A-mediated, pathway that leads to the increased lyase activity of P450c17 and testosterone biosynthesis.
Collapse
Affiliation(s)
- Ling-Ling Gao
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China.
| | | | | | | | | | | |
Collapse
|
5
|
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.
Collapse
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
| | | | | | | |
Collapse
|
6
|
Taniguchi F, Couse JF, Rodriguez KF, Emmen JMA, Poirier D, Korach KS. Estrogen receptor-alpha mediates an intraovarian negative feedback loop on thecal cell steroidogenesis via modulation of Cyp17a1 (cytochrome P450, steroid 17alpha-hydroxylase/17,20 lyase) expression. FASEB J 2006; 21:586-95. [PMID: 17158782 PMCID: PMC1896370 DOI: 10.1096/fj.06-6681com] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Excess androgen synthesis by thecal cells is invariably detrimental to preovulatory follicles in the ovary and is considered a fundamental characteristic of polycystic ovary syndrome in women. Investigators have long postulated that granulosa cell-derived estrogens modulate thecal cell steroidogenesis via a short negative-feedback loop within the follicle. To test this hypothesis, we assessed the steroidogenic capacity of individual wild-type (WT) and estrogen receptor-alpha (ER alpha)-null follicles when cultured in vitro under comparable conditions. Late-stage ER alpha-null follicles exhibited markedly increased expression of the thecal cell enzyme CYP17A1 and secreted much greater amounts of its end product, androstenedione. This phenotype was reproduced in WT follicles when exposed to an aromatase inhibitor or ER-antagonist, and prevented when the former treatment was supplemented with an ER alpha-specific agonist. ER alpha-null follicles also exhibited increased testosterone synthesis due to ectopic expression of hydroxysteroid (17beta) dehydrogenase type 3 (HSD17B3), a testis-specific androgenic enzyme. These data indicate that ER alpha functions within thecal cells to negatively modulate the capacity for androgen synthesis by repressing Cyp17a1 expression, and the biological activity of androgens produced by inhibiting Hsd17b3 expression. Hence, these findings provide novel evidence of an intraovarian ER alpha function that may be critical to the latter stages of folliculogenesis and overall ovarian function.
Collapse
Affiliation(s)
- Fuminori Taniguchi
- Department of Obstetrics and Gynecology, Tottori University Hospital, Yonago, Japan, 683-8504
| | - John F. Couse
- Receptor Biology Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709 USA
| | - Karina F. Rodriguez
- Receptor Biology Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709 USA
| | - Judith M. A. Emmen
- Receptor Biology Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709 USA
| | - Donald Poirier
- Medicinal Chemistry Division, Oncology and Molecular Endocrinology Research Center, Centre Hospitalier Universitaire de Quebec (CHUQ), Pavillon CHUL, 2705 Laurier Boulevard, Sainte-Foy, Quebec, G1V 4G2, Canada
| | - Kenneth S. Korach
- Receptor Biology Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709 USA
- Correspondence: Receptor Biology Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences/National Institutes of Health, MD B3-02, P.O. Box 12233, Research Triangle Park, NC 27709. Phone: (919) 541-3512; Fax: (919) 541-0696; E-mail:
| |
Collapse
|
7
|
Abstract
Ovarian steroid production and subsequent local steroid-mediated signaling are critical for normal ovarian processes, including follicle growth, oocyte maturation, and ovulation. In contrast, elevated steroidogenesis and/or increased steroid signaling in the ovary can lead to profound ovarian pathology, such as polycystic ovarian syndrome, the leading cause of infertility in reproductive age women. Through the use of several in vitro and animal models, great strides have been made toward characterizing the mechanisms regulating local steroid production and action in the ovary. Examples of this progress include insights into luteinizing hormone (LH)- and growth factor-mediated signaling, steroidogenic acute regulatory protein (StAR) activation, and both genomic and nongenomic steroid-mediated signaling in somatic and germ cells, respectively. The following review will address these advances, focusing on how this rapidly expanding knowledge base can be used to better understand female reproduction, and to further improve treatments for common diseases of infertility.
Collapse
Affiliation(s)
- Michelle Jamnongjit
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Department of Pharmacology, University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd., Dallas, Texas 75390-8857, USA
| | - Stephen R Hammes
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Department of Pharmacology, University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd., Dallas, Texas 75390-8857, USA
- Corresponding author Stephen R Hammes, M.D., Ph.D., Phone: 214-648-3749, FAX: 214-648-7934,
| |
Collapse
|