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Tetsuka M, Tanakadate M. Activation of HSD11B1 in the bovine cumulus-oocyte complex during IVM and IVF. Endocr Connect 2019; 8:1029-1039. [PMID: 31252401 PMCID: PMC6652248 DOI: 10.1530/ec-19-0188] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 06/26/2019] [Indexed: 02/02/2023]
Abstract
The bovine cumulus-oocyte complex (COC) is capable of converting cortisone, an inert glucocorticoid to active cortisol. This mechanism is mediated by 11β-hydroxysteroid oxidoreductase type 1 (HSD11B1), whose expression dramatically increases in the mature COC. In this study, we investigate the time course expression of HSD11B1 and the enzyme activity in the bovine COC undergoing maturation and fertilization in relation to key events taking place in the COC. Bovine COCs were subjected to in vitro maturation (IVM) and fertilization (IVF). The activities of HSD11B1 and HSD11B2, which mediates the opposite reaction, were measured using a radiometric conversion assay. In parallel studies, cumulus expansion, P4 production and the expression of genes associated with ovulation were measured. The reductive activity of HSD11B1 increased in the latter half of IVM and remained high during IVF, whereas the oxidative activity of HSD11B2 remained unchanged over both periods. Consequently, the net glucocorticoid metabolism in the bovine COC shifted from inactivation to activation around the time of ovulation and fertilization. The increase in HSD11B1 expression lagged behind that of P4 increase and cumulus expansion but ahead of the expressions of genes responsible for PGE2 synthesis. The reductive activity of HSD11B1 was well correlated with the cumulus expansion rate. This outcome indicates that the ability of the cumulus to activate glucocorticoids is related to its ability to synthesize hyaluronan. These results also indicate that the activation of HSD11B1 is an integral part of the sequential events taking place at the ovulation and fertilization in the bovine COC.
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Affiliation(s)
- Masafumi Tetsuka
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
- Correspondence should be addressed to M Tetsuka:
| | - Misato Tanakadate
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
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2
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Jonas KC, Chen S, Virta M, Mora J, Franks S, Huhtaniemi I, Hanyaloglu AC. Temporal reprogramming of calcium signalling via crosstalk of gonadotrophin receptors that associate as functionally asymmetric heteromers. Sci Rep 2018; 8:2239. [PMID: 29396488 PMCID: PMC5797151 DOI: 10.1038/s41598-018-20722-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 01/19/2018] [Indexed: 02/08/2023] Open
Abstract
Signal crosstalk between distinct G protein-coupled receptors (GPCRs) is one mechanism that underlies pleiotropic signalling. Such crosstalk is also pertinent for GPCRs activated by gonadotrophic hormones; follicle-stimulating hormone (FSH) and luteinising hormone (LH), with specific relevance to female reproduction. Here, we demonstrate that gonadotrophin receptor crosstalk alters LH-induced Gαq/11-calcium profiles. LH-induced calcium signals in both heterologous and primary human granulosa cells were prolonged by FSHR coexpression via influx of extracellular calcium in a receptor specific manner. LHR/FSHR crosstalk involves Gαq/11 activation as a Gαq/11 inhibitor abolished calcium responses. Interestingly, the enhanced LH-mediated calcium signalling induced by FSHR co-expression was dependent on intracellular calcium store release and involved Gβγ. Biophysical analysis of receptor and Gαq interactions indicated that ligand-dependent association between LHR and Gαq was rearranged in the presence of FSHR, enabling FSHR to closely associate with Gαq following LHR activation. This suggests that crosstalk may occur via close associations as heteromers. Super-resolution imaging revealed that LHR and FSHR formed constitutive heteromers at the plasma membrane. Intriguingly, the ratio of LHR:FSHR in heterotetramers was specifically altered following LH treatment. We propose that functionally significant FSHR/LHR crosstalk reprograms LH-mediated calcium signalling at the interface of receptor-G protein via formation of asymmetric complexes.
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Affiliation(s)
- K C Jonas
- Centre for Medical and Biomedical Education, St George's, University of London, London, UK.,Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Imperial College London, London, UK
| | - S Chen
- Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Imperial College London, London, UK.,Roche Pharma Research and Early Development, Roche Innovation Center Zürich, Zürich, Switzerland
| | - M Virta
- Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Imperial College London, London, UK
| | - J Mora
- Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Imperial College London, London, UK
| | - S Franks
- Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Imperial College London, London, UK
| | - I Huhtaniemi
- Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Imperial College London, London, UK.
| | - A C Hanyaloglu
- Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Imperial College London, London, UK.
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3
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Chapman K, Holmes M, Seckl J. 11β-hydroxysteroid dehydrogenases: intracellular gate-keepers of tissue glucocorticoid action. Physiol Rev 2013; 93:1139-206. [PMID: 23899562 DOI: 10.1152/physrev.00020.2012] [Citation(s) in RCA: 538] [Impact Index Per Article: 48.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Glucocorticoid action on target tissues is determined by the density of "nuclear" receptors and intracellular metabolism by the two isozymes of 11β-hydroxysteroid dehydrogenase (11β-HSD) which catalyze interconversion of active cortisol and corticosterone with inert cortisone and 11-dehydrocorticosterone. 11β-HSD type 1, a predominant reductase in most intact cells, catalyzes the regeneration of active glucocorticoids, thus amplifying cellular action. 11β-HSD1 is widely expressed in liver, adipose tissue, muscle, pancreatic islets, adult brain, inflammatory cells, and gonads. 11β-HSD1 is selectively elevated in adipose tissue in obesity where it contributes to metabolic complications. Similarly, 11β-HSD1 is elevated in the ageing brain where it exacerbates glucocorticoid-associated cognitive decline. Deficiency or selective inhibition of 11β-HSD1 improves multiple metabolic syndrome parameters in rodent models and human clinical trials and similarly improves cognitive function with ageing. The efficacy of inhibitors in human therapy remains unclear. 11β-HSD2 is a high-affinity dehydrogenase that inactivates glucocorticoids. In the distal nephron, 11β-HSD2 ensures that only aldosterone is an agonist at mineralocorticoid receptors (MR). 11β-HSD2 inhibition or genetic deficiency causes apparent mineralocorticoid excess and hypertension due to inappropriate glucocorticoid activation of renal MR. The placenta and fetus also highly express 11β-HSD2 which, by inactivating glucocorticoids, prevents premature maturation of fetal tissues and consequent developmental "programming." The role of 11β-HSD2 as a marker of programming is being explored. The 11β-HSDs thus illuminate the emerging biology of intracrine control, afford important insights into human pathogenesis, and offer new tissue-restricted therapeutic avenues.
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Affiliation(s)
- Karen Chapman
- Endocrinology Unit, Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
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Soriano-Hernández AD, Galvan-Salazar HR, Montes-Galindo DA, Rodriguez-Hernandez A, Martinez-Martinez R, Guzman-Esquivel J, Valdez-Velazquez LL, Baltazar-Rodriguez LM, Espinoza-Gómez F, Rojas-Martinez A, Ortiz-Lopez R, Gonzalez-Alvarez R, Delgado-Enciso I. Antitumor effect of meclofenamic acid on human androgen-independent prostate cancer: a preclinical evaluation. Int Urol Nephrol 2011; 44:471-7. [DOI: 10.1007/s11255-011-0012-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Accepted: 05/24/2011] [Indexed: 01/11/2023]
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5
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Chapman KE, Coutinho AE, Gray M, Gilmour JS, Savill JS, Seckl JR. The role and regulation of 11beta-hydroxysteroid dehydrogenase type 1 in the inflammatory response. Mol Cell Endocrinol 2009; 301:123-31. [PMID: 18973788 DOI: 10.1016/j.mce.2008.09.031] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 09/24/2008] [Accepted: 09/25/2008] [Indexed: 02/08/2023]
Abstract
Cortisone, a glucocorticoid hormone, was first used to treat rheumatoid arthritis in humans in the late 1940s, for which Hench, Reichstein and Kendall were awarded a Nobel Prize in 1950 and which led to the discovery of the anti-inflammatory effects of glucocorticoids. To be effective, the intrinsically inert cortisone must be converted to the active glucocorticoid, cortisol, by the intracellular action of 11beta-hydroxysteroid dehydrogenase type 1 (11beta-HSD1). Whilst orally administered cortisone is rapidly converted to the active hormone, cortisol, by first pass metabolism in the liver, recent work has highlighted an anti-inflammatory role for 11beta-HSD1 within specific tissues, including in leukocytes. Here, we review recent evidence pertaining to the anti-inflammatory role of 11beta-HSD1 and describe how inhibition of 11beta-HSD1, as widely proposed for treatment of metabolic disease, may impact upon inflammation. Finally, the mechanisms that regulate 11beta-HSD1 transcription will be discussed.
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Affiliation(s)
- Karen E Chapman
- Endocrinology Unit, Centre for Cardiovascular Sciences, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK.
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Gomez-Sanchez EP, Gomez-Sanchez MT, de Rodriguez AF, Romero DG, Warden MP, Plonczynski MW, Gomez-Sanchez CE. Immunohistochemical demonstration of the mineralocorticoid receptor, 11beta-hydroxysteroid dehydrogenase-1 and -2, and hexose-6-phosphate dehydrogenase in rat ovary. J Histochem Cytochem 2009; 57:633-41. [PMID: 19255253 DOI: 10.1369/jhc.2009.953059] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
An IHC survey using several monoclonal antibodies against different portions of the rat mineralocorticoid receptor (MR) molecule demonstrated significant specific MR immunoreactivity in the ovary, prompting further study of the localization of MR and of determinants of extrinsic MR ligand specificity, 11beta-hydroxysteroid dehydrogenase (11beta-HSD) types 1 and 2, and hexose-6-phosphate dehydrogenase (H6PDH). MR expression (real-time RT-PCR and Western blot) did not differ significantly in whole rat ovaries at early diestrus, late diestrus, estrus, and a few hours after ovulation. MR immunostaining was most intense in corporal lutea cells, light to moderate in oocytes and granulosa cells, and least intense in theca cells. Light immunoreactivity for 11beta-HSD2 occurred in most cells, with some mural granulosa cells of mature follicles staining more strongly. The distribution of immunoreactivity for 11beta-HSD1 and H6PDH required to generate NADPH, the cofactor required for reductase activity of 11beta-HSD1, was similar, with the most-intense staining in the cytoplasm of corporal lutea and theca cells and light or no staining in the granulosa and oocytes. MR function in the ovary is as yet unclear, but distinct patterns of distribution of 11beta-HSD1 and -2 and H6PDH suggest that the ligand for MR activation in different cells of the ovary may be differentially regulated.
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Affiliation(s)
- Elise P Gomez-Sanchez
- Research Service, G.V. (Sonny) Montgomery Veterans Affairs Medical Center and Division of Endocrinology, Department of Medicine, The University of Mississippi Medical Center, Jackson, Mississippi, USA.
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7
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Lee HY, Acosta TJ, Skarzynski DJ, Okuda K. Prostaglandin F2alpha stimulates 11Beta-hydroxysteroid dehydrogenase 1 enzyme bioactivity and protein expression in bovine endometrial stromal cells. Biol Reprod 2008; 80:657-64. [PMID: 19109222 DOI: 10.1095/biolreprod.108.073403] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
11Beta-hydroxysteroid dehydrogenase (HSD11B) enzymes have important roles in regulating cortisol availability in target tissues. We previously demonstrated that HSD11B1 is expressed and active in bovine endometrium and that cortisol suppresses prostaglandin (PG) F2alpha and PGE2 production in cultured bovine endometrial stromal cells. The present study was conducted to examine whether locally synthesized PGF2alpha and/or PGE2 regulates the enzymatic bioactivity and/or the expression of HSD11B1 in bovine endometrium. The conversion rate of cortisone to cortisol in cultured endometrial stromal cells was significantly stimulated by PGF2alpha (1 and 10 microM). In a dose-dependent manner, PGF2alpha but not PGE2 increased the net conversion of cortisone to cortisol in stromal cells after 4 h of treatment. In addition, the bioactivity of HSD11B1 was significantly inhibited by indomethacin (10 microM). The inhibitory effect of indomethacin on HSD11B1 bioactivity was abolished by PGF2alpha (1 microM) but not by PGE2. Although PGF2alpha (1 microM) did not affect the expression of HSD11B1 mRNA in cultured stromal cells, it significantly stimulated the protein expression of HSD11B1. Cycloheximide, a general translational inhibitor, abolished the stimulatory effects of PGF2alpha on HSD11B1 protein expression in endometrial stromal cells, indicating that PGF2alpha increases HSD11B1 protein expression by stimulating a posttranscriptional process rather than a transcriptional mechanism. These results demonstrate that PGF2alpha but not PGE2 increases HSD11B1 bioactivity and protein expression by stimulating a posttranscriptional mechanism in stromal cells and suggest that cortisol has a physiologically relevant role in preventing excessive uterine PG production in nonpregnant bovine endometrium.
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Affiliation(s)
- Hwa-Yong Lee
- Laboratory of Reproductive Endocrinology, Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
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Webb RJ, Sunak N, Wren L, Michael AE. Inactivation of glucocorticoids by 11beta-hydroxysteroid dehydrogenase enzymes increases during the meiotic maturation of porcine oocytes. Reproduction 2008; 136:725-32. [PMID: 18787080 DOI: 10.1530/rep-08-0289] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Recent reports have shown that glucocorticoids can modulate oocyte maturation in both teleost fish and mammals. Within potential target cells, the actions of physiological glucocorticoids are modulated by 11beta-hydroxysteroid dehydrogenase (HSD11B) isoenzymes that catalyse the interconversion of cortisol and cortisone. Hence, the objective of this study was to establish whether HSD11B enzymes mediate cortisol-cortisone metabolism in porcine oocytes and, if so, whether the rate of glucocorticoid metabolism changes during oocyte maturation. Enzyme activities were measured in cumulus-oocyte complexes (COCs) and denuded oocytes (DOs) using radiometric conversion assays. While COCs and DOs oxidised cortisol to inert cortisone, there was no detectable regeneration of cortisol from cortisone. The rate of cortisol oxidation was higher in expanded COCs than in compact COCs containing germinal vesicle (GV) stage oocytes (111+/-6 vs 2041+/-115 fmol cortisone/oocyte.24 h; P<0.001). Likewise, HSD11B activities were 17+/-1 fold higher in DOs from expanded COCs than in those from compact COCs (P<0.001). When GV stage oocytes were subject to a 48 h in vitro maturation protocol, the enzyme activities were significantly increased from 146+/-18 to 1857+/-276 fmol cortisone/oocyte.24 h in GV versus MII stage oocytes respectively (P<0.001). Cortisol metabolism was inhibited by established pharmacological inhibitors of HSD11B (glycyrrhetinic acid and carbenoxolone), and by porcine follicular and ovarian cyst fluid. We conclude that an HSD11B enzyme (or enzymes) functions within porcine oocytes to oxidise cortisol, and that this enzymatic inactivation of cortisol increases during oocyte maturation.
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Affiliation(s)
- Rachel J Webb
- Division of Clinical Developmental Sciences, Academic Section of Obstetrics and Gynaecology, Centre for Developmental and Endocrine Signalling, St George's University of London, Cranmer Terrace, London, UK
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Komiyama J, Nishimura R, Lee HY, Sakumoto R, Tetsuka M, Acosta TJ, Skarzynski DJ, Okuda K. Cortisol is a suppressor of apoptosis in bovine corpus luteum. Biol Reprod 2008; 78:888-95. [PMID: 18218610 DOI: 10.1095/biolreprod.107.065656] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Glucocorticoid (GC) acts as a modulator of physiological functions in several organs. In the present study, we examined whether GC suppresses luteolysis in bovine corpus luteum (CL). Cortisol (an active GC) reduced the mRNA expression of caspase 8 (CASP8) and caspase 3 (CASP3) and reduced the enzymatic activity of CASP3 and cell death induced by tumor necrosis factor (TNF) and interferon gamma (IFNG) in cultured bovine luteal cells. mRNAs and proteins of GC receptor (NR3C1), 11beta-hydroxysteroid dehydrogenase type 1 (HSD11B1), and HSD11B2 were expressed in CL throughout the estrous cycle. Moreover, the protein expression and the enzymatic activity of HSD11B1 were high at the early and the midluteal stages compared to the regressed luteal stage. These results suggest that cortisol suppresses TNF-IFNG-induced apoptosis in vitro by reducing apoptosis signals via CASP8 and CASP3 in bovine CL and that the local increase in cortisol production resulting from increased HSD11B1 at the early and midluteal stages helps to maintain CL function by suppressing apoptosis of luteal cells.
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Affiliation(s)
- Junichi Komiyama
- Laboratory of Reproductive Endocrinology, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
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10
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Myers M, Lamont MC, van den Driesche S, Mary N, Thong KJ, Hillier SG, Duncan WC. Role of luteal glucocorticoid metabolism during maternal recognition of pregnancy in women. Endocrinology 2007; 148:5769-79. [PMID: 17872369 DOI: 10.1210/en.2007-0742] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The human corpus luteum (hCL) is an active, transient, and dynamic endocrine gland. It will experience extensive tissue and vascular remodeling followed by 1) demise of the whole gland without any apparent scarring or 2) maintenance of structural and functional integrity dependent on conceptus-derived human chorionic gonadotropin (hCG). Because cortisol has well-characterized roles in tissue remodeling and repair, we hypothesized that it may have a role in controlling luteal dissolution during luteolysis and would be locally produced toward the end of the luteal cycle. Glucocorticoid-metabolizing enzymes [11beta-hydroxysteroid dehydrogenase (11betaHSD) types 1 and 2] and the glucocorticoid receptor (GR) were assessed in hCL and cultures of luteinized granulosa cells (LGC) using immunofluorescence and quantitative RT-PCR. Furthermore, the effect of cortisol on steroidogenic cell survival and fibroblast-like cell activity was explored in vitro. The hCL expressed 11betaHSD isoenzymes in LGC and nuclear GR in several cell types. hCG up-regulated the expression and activity of 11betaHSD type 1 (P < 0.05) and down-regulated type 2 enzyme (P < 0.05) in vitro and tended to do the same in vivo. Cortisol increased the survival of LGC treated with RU486 (P < 0.05) and suppressed the activity of a proteolytic enzyme associated with luteolysis in fibroblast-like cells (P < 0.05). Our results suggest that, rather than during luteolysis, it is luteal rescue with hCG that is associated with increased local cortisol generation by 11betaHSD type 1. Locally generated cortisol may therefore act on the hCL through GR to have a luteotropic role in the regulation of luteal tissue remodeling during maternal recognition of pregnancy.
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Affiliation(s)
- Michelle Myers
- Obstetrics and Gynaecology, The Queen's Medical Research Institute Centre for Reproductive Biology, 47 Little France Crescent, Edinburgh, Scotland, United Kingdom.
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11
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Chandras C, Harris TE, López Bernal A, Abayasekara DRE, Michael AE. PTGER1 and PTGER2 receptors mediate regulation of progesterone synthesis and type 1 11beta-hydroxysteroid dehydrogenase activity by prostaglandin E2 in human granulosa lutein cells. J Endocrinol 2007; 194:595-602. [PMID: 17761898 PMCID: PMC2040272 DOI: 10.1677/joe-07-0128] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
In luteinizing granulosa cells, prostaglandin E(2) (PGE(2)) can exert luteotrophic actions, apparently via the cAMP signalling pathway. In addition to stimulating progesterone synthesis, PGE(2) can also stimulate oxidation of the physiological glucocorticoid, cortisol, to its inactive metabolite, cortisone, by the type 1 11beta-hydroxysteroid dehydrogenase (11betaHSD1) enzyme in human granulosa-lutein cells. Having previously shown these human ovarian cells to express functional G-protein coupled, E-series prostaglandin (PTGER)1, PTGER2 and PTGER4 receptors, the aim of this study was to delineate the roles of PTGER1 and PTGER2 receptors in mediating the effects of PGE(2) on steroidogenesis and cortisol metabolism in human granulosa-lutein cells. PGE(2)-stimulated concentration-dependent increases in both progesterone production and cAMP accumulation (by 1.9 +/- 0.1- and 18.7 +/- 6.8-fold respectively at 3000 nM PGE(2)). While a selective PTGER1 antagonist, SC19220, could partially inhibit the steroidogenic response to PGE(2) (by 55.9 +/- 4.1% at 1000 nM PGE(2)), co-treatment with AH6809, a mixed PTGER1/PTGER2 receptor antagonist, completely abolished the stimulation of progesterone synthesis at all tested concentrations of PGE(2) and suppressed the stimulation of cAMP accumulation. Both PGE(2) and butaprost (a preferential PTGER2 receptor agonist) stimulated concentration-dependent increases in cortisol oxidation by 11betaHSD1 (by 42.5 +/- 3.1 and 40.0 +/- 3.0% respectively, at PGE(2) and butaprost concentrations of 1000 nM). Co-treatment with SC19220 enhanced the ability of both PGE(2) and butaprost to stimulate 11betaHSD1 activity (by 30.2 +/- 0.2 and 30.5 +/- 0.6% respectively), whereas co-treatment with AH6809 completely abolished the 11betaHSD1 responses to PGE(2) and butaprost. These findings implicate the PTGER2 receptor-cAMP signalling pathway in the stimulation of progesterone production and 11betaHSD1 activity by PGE(2) in human granulosa-lutein cells.
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MESH Headings
- 11-beta-Hydroxysteroid Dehydrogenase Type 1/metabolism
- Alprostadil/analogs & derivatives
- Alprostadil/pharmacology
- Cells, Cultured
- Cortisone/metabolism
- Cyclic AMP/metabolism
- Dibenz(b,f)(1,4)oxazepine-10(11H)-carboxylic acid, 8-chloro-, 2-acetylhydrazide/pharmacology
- Dinoprostone/pharmacology
- Dose-Response Relationship, Drug
- Female
- Humans
- Hydrocortisone/metabolism
- Luteal Cells/drug effects
- Luteal Cells/metabolism
- Progesterone/biosynthesis
- Prostaglandin Antagonists/pharmacology
- Prostaglandins E, Synthetic/pharmacology
- Receptors, Prostaglandin E/metabolism
- Receptors, Prostaglandin E, EP1 Subtype
- Receptors, Prostaglandin E, EP2 Subtype
- Xanthones/pharmacology
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Affiliation(s)
- C Chandras
- Department of Biochemistry and Molecular Biology, Royal Free and University College Medical School, University College LondonRowland Hill Street, London NW3 2PFUK
- Department of Veterinary Basic Science, Royal Veterinary CollegeRoyal College Street, London NW1 0TUUK
| | - T E Harris
- Department of Biochemistry and Molecular Biology, Royal Free and University College Medical School, University College LondonRowland Hill Street, London NW3 2PFUK
- Department of Veterinary Basic Science, Royal Veterinary CollegeRoyal College Street, London NW1 0TUUK
| | - A López Bernal
- Department of Clinical Science at South Bristol (Obstetrics and Gynaecology), University of BristolDorothy Hodgkin Building, Whitson Street, Bristol BS1 3NYUK
| | - D R E Abayasekara
- Department of Veterinary Basic Science, Royal Veterinary CollegeRoyal College Street, London NW1 0TUUK
| | - A E Michael
- Department of Biochemistry and Molecular Biology, Royal Free and University College Medical School, University College LondonRowland Hill Street, London NW3 2PFUK
- Division of Clinical Developmental Sciences, Academic Section of Obstetrics & Gynaecology, Centre for Developmental and Endocrine Signalling, St George's University of LondonCranmer Terrace Tooting, London SW17 0REUK
- (Requests for offprints should be addressed to A E Michael; )
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