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Diaz-Zegarra LA, Espejo MS, Ibañez AM, Rando ME, Pagola LE, De Giusti VC, Aiello EA. Activation of G Protein-Coupled Estrogen Receptor (GPER) Negatively Modulates Cardiac Excitation-Contraction Coupling (ECC) through the PI3K/NOS/NO Pathway. Int J Mol Sci 2024; 25:8993. [PMID: 39201679 PMCID: PMC11354384 DOI: 10.3390/ijms25168993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/12/2024] [Accepted: 07/17/2024] [Indexed: 09/03/2024] Open
Abstract
The G-protein-coupled estrogen receptor (GPER) has been described to exert several cardioprotective effects. However, the exact mechanism involved in cardiac protection remains unclear. The aim of this study is to investigate the role of GPER activation on excitation-contraction coupling (ECC) and the possibility that such effect participates in cardioprotection. The cardiac myocytes of male Wistar rats were isolated with a digestive buffer and loaded with Fura-2-AM for the measurement of intracellular calcium transient (CaT). Sarcomere shortening (SS) and L-type calcium current (ICaL) were also registered. The confocal technique was used to measure nitric oxide (NO) production in cells loaded with DAF-FM-diacetate. Cardiac myocytes exposed to 17-β-estradiol (E2, 10 nM) or G-1 (1 μM) for fifteen minutes decreased CaT, SS, and ICaL. These effects were prevented using G-36 (antagonist of GPER, 1 μM), L-Name (NO synthase -NOS- inhibitor, 100 nM), or wortmannin (phosphoinositide-3-kinase -PI3K- inhibitor, 100 nM). Moreover, G1 increased NO production, and this effect was abolished in the presence of wortmannin. We concluded that the selective activation of GPER with E2 or G1 in the isolated cardiac myocytes of male rats induced a negative inotropic effect due to the reduction in ICaL and the decrease in CaT. Finally, the pathway that we proposed to be implicated in these effects is PI3K-NOS-NO.
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Affiliation(s)
- Leandro A. Diaz-Zegarra
- Centro de Investigaciones Cardiovasculares “Dr. Horacio E. Cingolani”, Facultad de Ciencias Médicas, Universidad Nacional de La Plata—CONICET, La Plata 1900, Buenos Aires, Argentina; (L.A.D.-Z.); (M.S.E.); (A.M.I.); (M.E.R.); (L.E.P.); (V.C.D.G.)
| | - María S. Espejo
- Centro de Investigaciones Cardiovasculares “Dr. Horacio E. Cingolani”, Facultad de Ciencias Médicas, Universidad Nacional de La Plata—CONICET, La Plata 1900, Buenos Aires, Argentina; (L.A.D.-Z.); (M.S.E.); (A.M.I.); (M.E.R.); (L.E.P.); (V.C.D.G.)
- Biomedicine Department, Health, Aarhus University, 8000 Aarhus, Midtjylland, Denmark
| | - Alejandro M. Ibañez
- Centro de Investigaciones Cardiovasculares “Dr. Horacio E. Cingolani”, Facultad de Ciencias Médicas, Universidad Nacional de La Plata—CONICET, La Plata 1900, Buenos Aires, Argentina; (L.A.D.-Z.); (M.S.E.); (A.M.I.); (M.E.R.); (L.E.P.); (V.C.D.G.)
| | - Mónica E. Rando
- Centro de Investigaciones Cardiovasculares “Dr. Horacio E. Cingolani”, Facultad de Ciencias Médicas, Universidad Nacional de La Plata—CONICET, La Plata 1900, Buenos Aires, Argentina; (L.A.D.-Z.); (M.S.E.); (A.M.I.); (M.E.R.); (L.E.P.); (V.C.D.G.)
| | - Lucia E. Pagola
- Centro de Investigaciones Cardiovasculares “Dr. Horacio E. Cingolani”, Facultad de Ciencias Médicas, Universidad Nacional de La Plata—CONICET, La Plata 1900, Buenos Aires, Argentina; (L.A.D.-Z.); (M.S.E.); (A.M.I.); (M.E.R.); (L.E.P.); (V.C.D.G.)
| | - Verónica C. De Giusti
- Centro de Investigaciones Cardiovasculares “Dr. Horacio E. Cingolani”, Facultad de Ciencias Médicas, Universidad Nacional de La Plata—CONICET, La Plata 1900, Buenos Aires, Argentina; (L.A.D.-Z.); (M.S.E.); (A.M.I.); (M.E.R.); (L.E.P.); (V.C.D.G.)
| | - Ernesto A. Aiello
- Centro de Investigaciones Cardiovasculares “Dr. Horacio E. Cingolani”, Facultad de Ciencias Médicas, Universidad Nacional de La Plata—CONICET, La Plata 1900, Buenos Aires, Argentina; (L.A.D.-Z.); (M.S.E.); (A.M.I.); (M.E.R.); (L.E.P.); (V.C.D.G.)
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Bkaily G, Jacques D. Calcium Homeostasis, Transporters, and Blockers in Health and Diseases of the Cardiovascular System. Int J Mol Sci 2023; 24:ijms24108803. [PMID: 37240147 DOI: 10.3390/ijms24108803] [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: 02/21/2023] [Revised: 05/06/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Calcium is a highly positively charged ionic species. It regulates all cell types' functions and is an important second messenger that controls and triggers several mechanisms, including membrane stabilization, permeability, contraction, secretion, mitosis, intercellular communications, and in the activation of kinases and gene expression. Therefore, controlling calcium transport and its intracellular homeostasis in physiology leads to the healthy functioning of the biological system. However, abnormal extracellular and intracellular calcium homeostasis leads to cardiovascular, skeletal, immune, secretory diseases, and cancer. Therefore, the pharmacological control of calcium influx directly via calcium channels and exchangers and its outflow via calcium pumps and uptake by the ER/SR are crucial in treating calcium transport remodeling in pathology. Here, we mainly focused on selective calcium transporters and blockers in the cardiovascular system.
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Affiliation(s)
- Ghassan Bkaily
- Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
| | - Danielle Jacques
- Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
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Subbamanda YD, Bhargava A. Intercommunication between Voltage-Gated Calcium Channels and Estrogen Receptor/Estrogen Signaling: Insights into Physiological and Pathological Conditions. Cells 2022; 11:cells11233850. [PMID: 36497108 PMCID: PMC9739980 DOI: 10.3390/cells11233850] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
Voltage-gated calcium channels (VGCCs) and estrogen receptors are important cellular proteins that have been shown to interact with each other across varied cells and tissues. Estrogen hormone, the ligand for estrogen receptors, can also exert its effects independent of estrogen receptors that collectively constitute non-genomic mechanisms. Here, we provide insights into the VGCC regulation by estrogen and the possible mechanisms involved therein across several cell types. Notably, most of the interaction is described in neuronal and cardiovascular tissues given the importance of VGCCs in these electrically excitable tissues. We describe the modulation of various VGCCs by estrogen known so far in physiological conditions and pathological conditions. We observed that in most in vitro studies higher concentrations of estrogen were used while a handful of in vivo studies used meager concentrations resulting in inhibition or upregulation of VGCCs, respectively. There is a need for more relevant physiological assays to study the regulation of VGCCs by estrogen. Additionally, other interacting receptors and partners need to be identified that may be involved in exerting estrogen receptor-independent effects of estrogen.
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Singh R, Nasci VL, Guthrie G, Ertuglu LA, Butt MK, Kirabo A, Gohar EY. Emerging Roles for G Protein-Coupled Estrogen Receptor 1 in Cardio-Renal Health: Implications for Aging. Biomolecules 2022; 12:412. [PMID: 35327604 PMCID: PMC8946600 DOI: 10.3390/biom12030412] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/25/2022] [Accepted: 03/01/2022] [Indexed: 02/05/2023] Open
Abstract
Cardiovascular (CV) and renal diseases are increasingly prevalent in the United States and globally. CV-related mortality is the leading cause of death in the United States, while renal-related mortality is the 8th. Despite advanced therapeutics, both diseases persist, warranting continued exploration of disease mechanisms to develop novel therapeutics and advance clinical outcomes for cardio-renal health. CV and renal diseases increase with age, and there are sex differences evident in both the prevalence and progression of CV and renal disease. These age and sex differences seen in cardio-renal health implicate sex hormones as potentially important regulators to be studied. One such regulator is G protein-coupled estrogen receptor 1 (GPER1). GPER1 has been implicated in estrogen signaling and is expressed in a variety of tissues including the heart, vasculature, and kidney. GPER1 has been shown to be protective against CV and renal diseases in different experimental animal models. GPER1 actions involve multiple signaling pathways: interaction with aldosterone and endothelin-1 signaling, stimulation of the release of nitric oxide, and reduction in oxidative stress, inflammation, and immune infiltration. This review will discuss the current literature regarding GPER1 and cardio-renal health, particularly in the context of aging. Improving our understanding of GPER1-evoked mechanisms may reveal novel therapeutics aimed at improving cardio-renal health and clinical outcomes in the elderly.
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Affiliation(s)
- Ravneet Singh
- Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Medical Research Building IV, Nashville, TN 37232, USA; (R.S.); (V.L.N.)
| | - Victoria L. Nasci
- Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Medical Research Building IV, Nashville, TN 37232, USA; (R.S.); (V.L.N.)
| | - Ginger Guthrie
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35233, USA; (G.G.); (M.K.B.)
| | - Lale A. Ertuglu
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.A.E.); (A.K.)
| | - Maryam K. Butt
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35233, USA; (G.G.); (M.K.B.)
| | - Annet Kirabo
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (L.A.E.); (A.K.)
| | - Eman Y. Gohar
- Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Medical Research Building IV, Nashville, TN 37232, USA; (R.S.); (V.L.N.)
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Firth JM, Yang HY, Francis AJ, Islam N, MacLeod KT. The Effect of Estrogen on Intracellular Ca 2+ and Na + Regulation in Heart Failure. ACTA ACUST UNITED AC 2020; 5:901-912. [PMID: 33015413 PMCID: PMC7524784 DOI: 10.1016/j.jacbts.2020.06.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 12/31/2022]
Abstract
During the progression toward heart failure, indicators of in vivo whole-heart function suggest greater impairment in the absence of estrogen. At the single cardiac myocyte level, the absence of estrogen results in further reduction of Ca2+ transient amplitudes, further slowing of transient decay kinetics, less SR Ca2+ content, and a further increase in Ca2+ spark frequencies and spark-mediated SR leak compared with animals with normal estrus cycles. Cardiac myocyte Na+ regulation is also more disrupted in the absence of estrogen.
Contradictory findings of estrogen supplementation in cardiac disease highlight the need to investigate the involvement of estrogen in the progression of heart failure in an animal model that lacks traditional comorbidities. Heart failure was induced by aortic constriction (AC) in female guinea pigs. Selected AC animals were ovariectomized (ACOV), and a group of these received 17β-estradiol supplementation (ACOV+E). One hundred-fifty days post-AC surgery, left-ventricular myocytes were isolated, and their electrophysiology and Ca2+ and Na+ regulation were examined. Long-term absence of ovarian hormones exacerbates the decline in cardiac function during the progression to heart failure. Estrogen supplementation reverses these aggravating effects.
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Key Words
- AC, aortic constriction
- ACOV+E, aortic constriction with ovariectomy, supplemented with 17β-estradiol
- ACOV, aortic constriction with ovariectomy
- FS, fractional shortening
- ICa, l-type Ca2+ channel current (cadmium-sensitive)
- INa,L, late Na+ current (ranolazine-sensitive)
- NCX, Na+/Ca2+ exchange
- OV, ovariectomy
- SERCA, Sarco/endoplasmic reticulum Ca2+-ATPase
- SR, sarcoplasmic reticulum
- calcium regulation
- cardiomyocytes
- estrogen
- excitation-contraction coupling
- female
- heart failure
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Affiliation(s)
- Jahn M Firth
- National Heart and Lung Institute, Imperial College, Hammersmith Hospital, London, United Kingdom
| | - Hsiang-Yu Yang
- Cardiovascular Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (R.O.C.)
| | - Alice J Francis
- National Heart and Lung Institute, Imperial College, Hammersmith Hospital, London, United Kingdom
| | - Najah Islam
- National Heart and Lung Institute, Imperial College, Hammersmith Hospital, London, United Kingdom
| | - Kenneth T MacLeod
- National Heart and Lung Institute, Imperial College, Hammersmith Hospital, London, United Kingdom
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Atheroprotective effects of 17β-oestradiol are mediated by peroxisome proliferator-activated receptor γ in human coronary artery smooth muscle cells. ACTA ACUST UNITED AC 2020; 5:e118-e126. [PMID: 32665986 PMCID: PMC7339869 DOI: 10.5114/amsad.2020.96103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/18/2020] [Indexed: 02/07/2023]
Abstract
Introduction 17β-oestradiol (E2) mediates vasculoprotection in various preclinical and clinical models of atherosclerosis and neointimal hyperplasia. However, the molecular mechanisms underlying these effects are still not fully elucidated. Previous studies have demonstrated the essential role of the peroxisome-proliferator-activated-receptor-γ (PPARγ) in mediating vasculoprotective effects of E2 in vivo. The aim of the current study was to investigate whether PPARγ mediates vasculoprotective mechanisms of E2 in human coronary artery smooth muscle cells (HCASMC). Material and methods Primary HCASMC were stimulated with E2 (10 nM), the selective oestrogen receptor α (ERα) agonist propylpyrazole triol (PPT) (50 nM) and the selective ERα antagonist methyl-piperidino-pyrazole (MPP) (1 µM), respectively. Changes in PPARγ mRNA, protein expression, and DNA binding affinity were assessed. Results E2 significantly increased PPARγ expression in HCASMC (1.95 ±0.41-fold; n = 5; p = 0.0335). This effect was mimicked by ERα agonist PPT (1.63 ±0.27-fold; n = 7; p = 0.0489) and was abrogated by co-incubation with ERα antagonist MPP (1.17 ±0.18-fold; n = 3; pvs. control > 0.05). PPARγ-DNA binding activity to PPRE remained unchanged upon stimulation with E2 (0.94 ±0.11-fold; n = 4; pvs. control > 0.05). Pharmacological inhibition of PI3K/Akt by LY294002 abrogated E2-induced expression of PPARγ (0.24 ±0.09-fold; n = 3; pvs. E2 = 0.0017). Conclusions The present study identifies PPARγ as an important downstream mediator of E2-related atheroprotective effects in HCASMC. PPARγ agonism might be a promising therapeutic strategy to prevent neointimal hyperplasia and consecutive cardiovascular events in postmenopausal women with depleted E2 plasma levels.
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Kotula-Balak M, Duliban M, Pawlicki P, Tuz R, Bilinska B, Płachno BJ, Arent ZJ, Krakowska I, Tarasiuk K. The meaning of non-classical estrogen receptors and peroxisome proliferator-activated receptor for boar Leydig cell of immature testis. Acta Histochem 2020; 122:151526. [PMID: 32094002 DOI: 10.1016/j.acthis.2020.151526] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 02/10/2020] [Accepted: 02/10/2020] [Indexed: 01/09/2023]
Abstract
Communication in biological systems involves diverse-types of cell-cell interaction including cross-talk between receptors expressed by the target cells. Recently, novel sort of estrogen receptors (G protein - coupled estrogen receptor; GPER and estrogen-related receptor; ERR) that signal directly via estrogen binding and/or via mutual interaction-regulated estrogen signaling were reported in various organs including testis. Peroxisome proliferator - activated receptor (PPAR) is responsible for maintaining of lipid homeostasis that is critical for sex steroid production in the testis. Here, we investigated the role of interaction between GPER, ERRβ and PPARγ in steroidogenic Leydig cells of immature boar testis. Testicular fragments cultured ex vivo were treated with GPER or PPARγ antagonists. Then, cell ultrastructure, expression and localization of GPER, ERRβ, PPARγ together with the molecular receptor mechanism, through cyclic AMP and Raf/Ras/extracellular signal activated kinases (ERK), in the control of cholesterol concentration and estrogen production by Leydig cells were studied. In the ultrastructure of antagonist-treated Leydig cells, mitochondria were not branched and not bifurcated as they were found in control. Additionally, in PPARγ-blocked Leydig cells changes in the number of lipid droplets were revealed. Independent of used antagonist, western blot revealed decreased co-expression of GPER, ERRβ, PPARγ with exception of increased expression of ERRβ after PPARγ blockage. Immunohistochemistry confirmed presence of all receptors partially located in the nucleus or cytoplasm of Leydig cells of both control and treated testes. Changes in receptor expression, decreased cholesterol and increased estradiol tissue concentrations occurred through decreased cAMP level (with exception after GPER blockage) as well as Raf/Ras/ERK pathway expression. These all findings indicate that GPER-ERRβ-PPARγ interaction exists in immature boar testis and regulates Leydig cell function. Further detailed studies and considerations on GPER-ERRβ-PPARγ as possible diagnosis/therapy target in disturbances of testis steroidogenic function are needed.
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Affiliation(s)
- M Kotula-Balak
- University Centre of Veterinary Medicine, University of Agriculture in Krakow, Mickiewicza 24/28, 30-059, Krakow, Poland.
| | - M Duliban
- Department of Endocrinology, Institute of Zoology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387 Krakow, Poland
| | - P Pawlicki
- Department of Endocrinology, Institute of Zoology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387 Krakow, Poland
| | - R Tuz
- Department of Swine and Small Animal Breeding, Institute of Animal Sciences, University of Agriculture in Krakow, Mickiewicza 24/28, 30-059 Krakow, Poland
| | - B Bilinska
- Department of Endocrinology, Institute of Zoology, Jagiellonian University in Krakow, Gronostajowa 9, 30-387 Krakow, Poland
| | - B J Płachno
- Department of Plant Cytology and Embryology, Institute of Botany, Jagiellonian University in Kraków, Poland, Gronostajowa 9, 30-387 Krakow, Poland
| | - Z J Arent
- University Centre of Veterinary Medicine, University of Agriculture in Krakow, Mickiewicza 24/28, 30-059, Krakow, Poland
| | - I Krakowska
- University Centre of Veterinary Medicine, University of Agriculture in Krakow, Mickiewicza 24/28, 30-059, Krakow, Poland
| | - K Tarasiuk
- University Centre of Veterinary Medicine, University of Agriculture in Krakow, Mickiewicza 24/28, 30-059, Krakow, Poland
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Tran QK. Reciprocality Between Estrogen Biology and Calcium Signaling in the Cardiovascular System. Front Endocrinol (Lausanne) 2020; 11:568203. [PMID: 33133016 PMCID: PMC7550652 DOI: 10.3389/fendo.2020.568203] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 08/19/2020] [Indexed: 12/30/2022] Open
Abstract
17β-Estradiol (E2) is the main estrogenic hormone in the body and exerts many cardiovascular protective effects. Via three receptors known to date, including estrogen receptors α (ERα) and β (ERβ) and the G protein-coupled estrogen receptor 1 (GPER, aka GPR30), E2 regulates numerous calcium-dependent activities in cardiovascular tissues. Nevertheless, effects of E2 and its receptors on components of the calcium signaling machinery (CSM), the underlying mechanisms, and the linked functional impact are only beginning to be elucidated. A picture is emerging of the reciprocality between estrogen biology and Ca2+ signaling. Therein, E2 and GPER, via both E2-dependent and E2-independent actions, moderate Ca2+-dependent activities; in turn, ERα and GPER are regulated by Ca2+ at the receptor level and downstream signaling via a feedforward loop. This article reviews current understanding of the effects of E2 and its receptors on the cardiovascular CSM and vice versa with a focus on mechanisms and combined functional impact. An overview of the main CSM components in cardiovascular tissues will be first provided, followed by a brief review of estrogen receptors and their Ca2+-dependent regulation. The effects of estrogenic agonists to stimulate acute Ca2+ signals will then be reviewed. Subsequently, E2-dependent and E2-independent effects of GPER on components of the Ca2+ signals triggered by other stimuli will be discussed. Finally, a case study will illustrate how the many mechanisms are coordinated to moderate Ca2+-dependent activities in the cardiovascular system.
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Chaturantabut S, Shwartz A, Evason KJ, Cox AG, Labella K, Schepers AG, Yang S, Aravena M, Houvras Y, Mancio-Silva L, Romano S, Gorelick DA, Cohen DE, Zon LI, Bhatia SN, North TE, Goessling W. Estrogen Activation of G-Protein-Coupled Estrogen Receptor 1 Regulates Phosphoinositide 3-Kinase and mTOR Signaling to Promote Liver Growth in Zebrafish and Proliferation of Human Hepatocytes. Gastroenterology 2019; 156:1788-1804.e13. [PMID: 30641053 PMCID: PMC6532055 DOI: 10.1053/j.gastro.2019.01.010] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/04/2019] [Accepted: 01/07/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Patients with cirrhosis are at high risk for hepatocellular carcinoma (HCC) and often have increased serum levels of estrogen. It is not clear how estrogen promotes hepatic growth. We investigated the effects of estrogen on hepatocyte proliferation during zebrafish development, liver regeneration, and carcinogenesis. We also studied human hepatocytes and liver tissues. METHODS Zebrafish were exposed to selective modifiers of estrogen signaling at larval and adult stages. Liver growth was assessed by gene expression, fluorescent imaging, and histologic analyses. We monitored liver regeneration after hepatocyte ablation and HCC development after administration of chemical carcinogens (dimethylbenzanthrazene). Proliferation of human hepatocytes was measured in a coculture system. We measured levels of G-protein-coupled estrogen receptor (GPER1) in HCC and nontumor liver tissues from 68 patients by immunohistochemistry. RESULTS Exposure to 17β-estradiol (E2) increased proliferation of hepatocytes and liver volume and mass in larval and adult zebrafish. Chemical genetic and epistasis experiments showed that GPER1 mediates the effects of E2 via the phosphoinositide 3-kinase-protein kinase B-mechanistic target of rapamycin pathway: gper1-knockout and mtor-knockout zebrafish did not increase liver growth in response to E2. HCC samples from patients had increased levels of GPER1 compared with nontumor tissue samples; estrogen promoted proliferation of human primary hepatocytes. Estrogen accelerated hepatocarcinogenesis specifically in male zebrafish. Chemical inhibition or genetic loss of GPER1 significantly reduced tumor development in the zebrafish. CONCLUSIONS In an analysis of zebrafish and human liver cells and tissues, we found GPER1 to be a hepatic estrogen sensor that regulates liver growth during development, regeneration, and tumorigenesis. Inhibitors of GPER1 might be developed for liver cancer prevention or treatment. TRANSCRIPT PROFILING The accession number in the Gene Expression Omnibus is GSE92544.
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Affiliation(s)
- Saireudee Chaturantabut
- Genetics Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Arkadi Shwartz
- Genetics Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | | | - Andrew G. Cox
- Genetics Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts;,Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Kyle Labella
- Genetics Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Arnout G. Schepers
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Song Yang
- Stem Cell Program, Division of Hematology/Oncology, Boston Children’s Hospital, Boston, Massachusetts
| | - Marianna Aravena
- Division of Gastroenterology and Hepatology, Weill Cornell Medical College, New York, New York
| | - Yariv Houvras
- Departments of Surgery and Medicine, Weill Cornell Medical College, New York, New York
| | - Liliana Mancio-Silva
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Shannon Romano
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Daniel A. Gorelick
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, Alabama
| | - David E. Cohen
- Division of Gastroenterology and Hepatology, Weill Cornell Medical College, New York, New York
| | - Leonard I. Zon
- Stem Cell Program, Division of Hematology/Oncology, Boston Children’s Hospital, Boston, Massachusetts;,Howard Hughes Medical Institute, Chevy Chase, Maryland;,Harvard Stem Cell Institute, Cambridge, Massachusetts;,Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Sangeeta N. Bhatia
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts;,Harvard–MIT Division of Health Sciences and Technology, Cambridge, Massachusetts;,Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Trista E. North
- Stem Cell Program, Division of Hematology/Oncology, Boston Children’s Hospital, Boston, Massachusetts;,Harvard Stem Cell Institute, Cambridge, Massachusetts
| | - Wolfram Goessling
- Genetics Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; Harvard Stem Cell Institute, Cambridge, Massachusetts; Dana-Farber Cancer Institute, Boston, Massachusetts; Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts; Divison of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts.
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10
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Waghulde H, Cheng X, Galla S, Mell B, Cai J, Pruett-Miller SM, Vazquez G, Patterson A, Vijay-kumar M, Joe B. Attenuation of Microbiotal Dysbiosis and Hypertension in a CRISPR/Cas9 Gene Ablation Rat Model of GPER1. Hypertension 2018; 72:1125-1132. [PMID: 30354811 PMCID: PMC6208154 DOI: 10.1161/hypertensionaha.118.11175] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 08/09/2018] [Indexed: 12/20/2022]
Abstract
G-protein-coupled estrogen receptor, Gper1, has been implicated in cardiovascular disease, but its mechanistic role in blood pressure control is poorly understood. Here, we demonstrate that genetically salt-sensitive hypertensive rats with complete genomic excision of Gper1 by a multiplexed guide RNA CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)/Cas9 (CRISPR associated proteins) approach present with lower blood pressure, which was accompanied by altered microbiota, different levels of circulating short chain fatty acids, and improved vascular relaxation. Microbiotal transplantation from hypertensive Gper1+/+ rats reversed the cardiovascular protective effect exerted by the genomic deletion of Gper1. Thus, this study reveals a role for Gper1 in promoting microbiotal alterations that contribute to cardiovascular pathology. However, the exact mechanism by which Gper1 regulates blood pressure is still unknown. Our results indicate that the function of Gper1 is contextually dependent on the microbiome, whereby, contemplation of using Gper1 as a target for therapy of cardiovascular disease requires caution.
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Affiliation(s)
- Harshal Waghulde
- Center for Hypertension and Personalized Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
- Physiological Genomics Laboratory, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Xi Cheng
- Center for Hypertension and Personalized Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
- Physiological Genomics Laboratory, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Sarah Galla
- Center for Hypertension and Personalized Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
- Physiological Genomics Laboratory, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Blair Mell
- Center for Hypertension and Personalized Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
- Physiological Genomics Laboratory, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Jingwei Cai
- Department of Veterinary and Biomedical Sciences, University Park, PA 16802
| | - Shondra M. Pruett-Miller
- Genome Engineering and iPSC Center, Washington University School of Medicine, St. Louis, MO 63110
| | - Guillermo Vazquez
- Center for Hypertension and Personalized Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
- Physiological Genomics Laboratory, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Andrew Patterson
- Department of Veterinary and Biomedical Sciences, University Park, PA 16802
| | - Matam Vijay-kumar
- Center for Hypertension and Personalized Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Bina Joe
- Center for Hypertension and Personalized Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
- Physiological Genomics Laboratory, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
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11
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Kotula-Balak M, Milon A, Pawlicki P, Opydo-Chanek M, Pacwa A, Lesniak K, Sekula M, Zarzycka M, Bubka M, Tworzydlo W, Bilinska B, Hejmej A. Insights into the role of estrogen-related receptors α, β and γ in tumor Leydig cells. Tissue Cell 2018; 52:78-91. [DOI: 10.1016/j.tice.2018.04.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/08/2018] [Accepted: 04/09/2018] [Indexed: 01/05/2023]
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12
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Machuki J, Zhang H, Harding S, Sun H. Molecular pathways of oestrogen receptors and β-adrenergic receptors in cardiac cells: Recognition of their similarities, interactions and therapeutic value. Acta Physiol (Oxf) 2018; 222. [PMID: 28994249 PMCID: PMC5813217 DOI: 10.1111/apha.12978] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/07/2017] [Accepted: 10/02/2017] [Indexed: 12/18/2022]
Abstract
Oestrogen receptors (ERs) and β-adrenergic receptors (βARs) play important roles in the cardiovascular system. Moreover, these receptors are expressed in cardiac myocytes and vascular tissues. Numerous experimental observations support the hypothesis that similarities and interactions exist between the signalling pathways of ERs (ERα, ERβ and GPR30) and βARs (β1 AR, β2 AR and β3 AR). The recently discovered oestrogen receptor GPR30 shares structural features with the βARs, and this forms the basis for the interactions and functional overlap. GPR30 possesses protein kinase A (PKA) phosphorylation sites and PDZ binding motifs and interacts with A-kinase anchoring protein 5 (AKAP5), all of which enable its interaction with the βAR pathways. The interactions between ERs and βARs occur downstream of the G-protein-coupled receptor, through the Gαs and Gαi proteins. This review presents an up-to-date description of ERs and βARs and demonstrates functional synergism and interactions among these receptors in cardiac cells. We explore their signalling cascades and the mechanisms that orchestrate their interactions and propose new perspectives on the signalling patterns for the GPR30 based on its structural resemblance to the βARs. In addition, we explore the relevance of these interactions to cell physiology, drugs (especially β-blockers and calcium channel blockers) and cardioprotection. Furthermore, a receptor-independent mechanism for oestrogen and its influence on the expression of βARs and calcium-handling proteins are discussed. Finally, we highlight promising therapeutic avenues that can be derived from the shared pathways, especially the phosphatidylinositol-3-OH kinase (PI3K/Akt) pathway.
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Affiliation(s)
- J.O. Machuki
- Department of Physiology; Xuzhou Medical University; Xuzhou China
| | - H.Y. Zhang
- Department of Physiology; Xuzhou Medical University; Xuzhou China
| | - S.E. Harding
- National Heart and Lung Institute; Imperial College; London UK
| | - H. Sun
- Department of Physiology; Xuzhou Medical University; Xuzhou China
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Nishie T, Kobayashi Y, Kimura K, Okuda K. Acute stimulation of a smooth muscle constrictor by oestradiol-17β via GPER1 in bovine oviducts. Reprod Domest Anim 2017; 53:326-332. [DOI: 10.1111/rda.13108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 10/01/2017] [Indexed: 02/01/2023]
Affiliation(s)
- T Nishie
- Laboratory of Reproductive Physiology; Graduate School of Environmental and Life Science; Okayama University; Okayama Japan
| | - Y Kobayashi
- Laboratory of Reproductive Physiology; Graduate School of Environmental and Life Science; Okayama University; Okayama Japan
| | - K Kimura
- Laboratory of Reproductive Physiology; Graduate School of Environmental and Life Science; Okayama University; Okayama Japan
| | - K Okuda
- Obihiro University of Agriculture and Veterinary Medicine; Hokkaido Japan
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14
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Suppression of store-operated Ca2+ entry by activation of GPER: contribution to a clamping effect on endothelial Ca2+ signaling. Biochem J 2017; 474:3627-3642. [DOI: 10.1042/bcj20170630] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 09/15/2017] [Accepted: 09/18/2017] [Indexed: 12/20/2022]
Abstract
The G protein-coupled estrogen receptor 1 (GPER, formerly also known as GPR30) modulates many Ca2+-dependent activities in endothelial cells. However, the underlying mechanisms are poorly understood. We recently reported that GPER acts to prolong cytoplasmic Ca2+ signals by interacting with and promoting inhibitory phosphorylation of the plasma membrane Ca2+-ATPase. In the present study, we examined the role of GPER activation in modulating store-operated Ca2+ entry (SOCE) via effects on the stromal interaction molecule 1 (STIM1). GPER activation by agonist G-1 reduces the peak but prolongs the plateau of bradykinin-induced Ca2+ signals in primary endothelial cells. G-1 dose-dependently inhibits thapsigargin-induced SOCE measured by the Mn2+ quenching method. GPER heterologous expression reduces SOCE, which is further pronounced by G-1 treatment. Consistently, GPER gene silencing in endothelial cells is associated with an increase in SOCE. Treatment with G-1 reduces puncta formation by STIM1 triggered by the activation of SOCE. The effect of GPER activation to inhibit SOCE is not affected by combined nonphosphorylatable substitutions at serines 486 and 668 on STIM1, but is substantially reduced by similar substitutions at serines 575, 608 and 621. Taken together with our recently reported inhibitory actions of GPER on Ca2+ efflux, the current data contribute to a model in which GPER acts to clamp agonist-induced cytoplasmic Ca2+ signals. Kinetic modeling based on current and reported data is used to estimate the overall effect of GPER activation on point activity of endothelial nitric oxide synthase during the time course of agonist-induced total Ca2+ signals.
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15
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Cao X, Huang J, Zhang G, Zuo W, Lan C, Sun Q, Yang D, Gao D, Cheng CHK, Zhou WL. Functional expression of G protein-coupled receptor 30 in immature rat epididymal epithelium. Cell Biol Int 2016; 41:134-146. [PMID: 27888566 DOI: 10.1002/cbin.10709] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 11/18/2016] [Indexed: 12/12/2022]
Abstract
The aim of this study is to investigate the functional role of G protein-coupled receptor 30 (GPR30) in the epididymis. We found that GPR30 is expressed in the epithelium of the immature rat epididymis and is involved in chloride secretion into the caudal epididymis lumen. The short-circuit current (Isc) experiments showed that in primary cultured caudal epididymis epithelium, activation of GPR30 by its specific agonist G1 induced a mono-phasic current increase, and G15, the specific antagonist of GPR30, could completely inhibit the current induced by G1. The G1-induced Isc was largely blocked by application of the non-specific chloride channel inhibitor diphenylamine-dicarboxylic acid (DPC), or by the cystic fibrosis transmembrane conductance regulator (CFTR) inhibitor CFTRinh-172 , suggesting that the current was mainly mediated through CFTR. In addition, after stimulating GPR30 by G1, the intracellular concentration of cAMP in the epithelium was significantly increased, indicating that the cAMP signal pathway is involved and could be responsible for the CFTR activation. Finally, to further investigate the function of GPR30 in vivo, G15 was administrated into rats subcutaneously. The osmotic pressure of the micro perfusion solution from epididymis was measured and the sperms were collected. Results showed that there was an osmotic pressure increase of the perfusion solution from G15 treated rats. When the GPR30 was inhibited by G15 endogenously, the motility of sperms decreased. Our data demonstrated that GPR30 is involved in the formation of caudal epididymis fluid micro-environment thus affecting sperm motility.
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Affiliation(s)
- Xiaonian Cao
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jiehong Huang
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Geng Zhang
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wulin Zuo
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Chongfeng Lan
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Qing Sun
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Dengliang Yang
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Dongdong Gao
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Christopher H K Cheng
- School of Biomedical Sciences, the Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Wen-Liang Zhou
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
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16
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Ji Y, Han Z, Shao L, Zhao Y. Ultrasound-targeted microbubble destruction of calcium channel subunit α 1D siRNA inhibits breast cancer via G protein-coupled receptor 30. Oncol Rep 2016; 36:1886-92. [PMID: 27572936 PMCID: PMC5022872 DOI: 10.3892/or.2016.5031] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 08/16/2016] [Indexed: 11/16/2022] Open
Abstract
Estrogen has been closely associated with breast cancer. Several studies reported that Ca2+ signal and Ca2+ channels act in estrogen-modulated non-genomic pathway of breast cancer, however little was revealed on the function of L-type Ca2+ channels. The L-type Ca2+ channel subunit α 1D, named Cav1.3 was found in breast cancer cells. We aimed to investigate the expression and activity of Cav1.3 in human breast cancer, and reveal the effect of estrogen in regulating the expression of Cav1.3. The qRT-PCR and western blotting were employed to show that Cav1.3 was highly expressed in breast cancer tissues. E2 exposure rapidly upregulated the expression of Cav1.3 in dosage- and time-dependent manner, and promoted Ca2+ influx. The silencing of G protein-coupled estrogen receptor 30 (GPER1/GPR30) using siRNA transfection inhibited the upregulation of Cav1.3 and Ca2+ influx induced by E2. Moreover, the inhibition of Cav1.3 by siRNA transfection suppressed E2-induced second peak of Ca2+ signal, the expression of p-ERK1/2, and the cell proliferation. Ultrasound-targeted microbubble destruction (UTMD) of Cav1.3 siRNA was used in MCF-7 cells in vitro and in the tumor xenografts mice in vivo. The application of UTMD significantly suppressed the tumor growth and promoted the survival rate. In conclusion, E2 upregulated the expression of Cav1.3 for Ca2+ influx to promote the expression of p-ERK1/2 for cell proliferation. The study confirmed that the mechanism of E2 inducing the expression of Cav1.3 through a non-genomic pathway, and highlighted that UTMD of Cav1.3 siRNA is a powerful promising technology for breast cancer gene therapy.
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Affiliation(s)
- Yanlei Ji
- Department of Special Diagnosis, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Zhen Han
- Department of Internal Medicine, Jinan Second People's Hospital, Jinan, Shandong 250001, P.R. China
| | - Limei Shao
- Department of Special Diagnosis, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Yuehuan Zhao
- Department of Special Diagnosis, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
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Ferrari LF, Khomula EV, Araldi D, Levine JD. Marked Sexual Dimorphism in the Role of the Ryanodine Receptor in a Model of Pain Chronification in the Rat. Sci Rep 2016; 6:31221. [PMID: 27499186 PMCID: PMC4976309 DOI: 10.1038/srep31221] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/14/2016] [Indexed: 12/19/2022] Open
Abstract
Hyperalgesic priming, an estrogen dependent model of the transition to chronic pain, produced by agonists at receptors that activate protein kinase C epsilon (PKCε), occurs in male but not in female rats. However, activation of second messengers downstream of PKCε, such as the ryanodine receptor, induces priming in both sexes. Since estrogen regulates intracellular calcium, we investigated the interaction between estrogen and ryanodine in the susceptibility to develop priming in females. The lowest dose of ryanodine able to induce priming in females (1 pg) is 1/100,000th that needed in males (100 ng), an effect dependent on the activation of ryanodine receptors. Treatment of female rats with antisense to estrogen receptor alpha (ERα), but not beta (ERβ), mRNA, prevented the induction of priming by low dose ryanodine, and the ERα agonist, PPT, induced ryanodine receptor-dependent priming. In vitro application of ryanodine in low concentration (2 nM) to small DRG neurons cultured from females, significantly potentiated calcium release via ryanodine receptors induced by caffeine. This effect was only observed in IB4+ neurons, cultured in the presence of β-estradiol or PPT. Our results demonstrate a profound regulatory role of ERα in ryanodine receptor-dependent transition to chronic pain.
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Affiliation(s)
- Luiz F Ferrari
- Departments of Medicine and Oral Surgery, and Division of Neuroscience, University of California at San Francisco, 521 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Eugen V Khomula
- Departments of Medicine and Oral Surgery, and Division of Neuroscience, University of California at San Francisco, 521 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Dionéia Araldi
- Departments of Medicine and Oral Surgery, and Division of Neuroscience, University of California at San Francisco, 521 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Jon D Levine
- Departments of Medicine and Oral Surgery, and Division of Neuroscience, University of California at San Francisco, 521 Parnassus Avenue, San Francisco, CA 94143, USA
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18
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Zarzycka M, Gorowska-Wojtowicz E, Tworzydlo W, Klak A, Kozub K, Hejmej A, Bilinska B, Kotula-Balak M. Are aryl hydrocarbon receptor and G-protein-coupled receptor 30 involved in the regulation of seasonal testis activity in photosensitive rodent-the bank vole (Myodes glareolus)? Theriogenology 2016; 86:674-686.e1. [PMID: 27004452 DOI: 10.1016/j.theriogenology.2016.02.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 12/14/2015] [Accepted: 02/22/2016] [Indexed: 02/03/2023]
Abstract
Within the reproductive system both aryl hydrocarbon receptor (AHR) and G-protein-coupled receptor 30 (GPR30) contribute to estrogen signaling and controlling of reproductive physiology. The specific question is whether and how AHR and GPR30 are involved in regulation of testis function in seasonally breeding rodents. Bank vole testes were obtained from animals reared under 18 hours light:6 hours dark (LD) and 6 hours light:18 hours dark (SD) conditions. Aryl hydrocarbon receptor and GPR30 expression were analyzed by quantitative reverse transcriptase-polymerase chain reaction, Western blot, and immunohistochemistry and/or immunofluorescent staining. In addition, the activity of enzymes involved in the intracellular signal transduction; extracellular signal-regulated kinase (ERK), protein kinase (PKA), matrix metalloproteinase 9 (MMP 9) and the concentrations of cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP), and calcium (Ca(2+)) were examined by immunohistochemical, immunoenzymatic, and colorimetric assays, respectively. Aryl hydrocarbon receptor and GPR30 were expressed in testes of actively reproducing voles and regressed ones although their expression at the messenger RNA and AHR also at protein level appeared to be photoperiod-dependent. A specific cellular localization and expression of AHR and GPR30 correlated with the expression of ERK, PKA, and MMP 9. Moreover, we found robust differences in the levels of cAMP, cGMP, and Ca(2+) in testicular homogenates between LD and SD voles. In the testes of LD voles, the levels of second messengers were always higher compared to SD. In vole testis, AHR and GPR30 can induce signaling pathways that involve ERK, PKA, MMP 9 and cAMP, cGMP, Ca(2+). In addition, in AHR, signaling the engagement of both photoperiod and estrogens, whereas in GPR30, signaling only estrogens is reported. It is likely that in vole, because of a differential activity of signaling molecules, signal transduction via AHR rather than through GPR30 plays a role in regulation of seasonal changes of testis physiology.
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Affiliation(s)
- Marta Zarzycka
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | | | - Waclaw Tworzydlo
- Department of Developmental Biology and Morphology of Invertebrates, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Aleksandra Klak
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Klaudia Kozub
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Anna Hejmej
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
| | - Barbara Bilinska
- Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland
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Reuquén P, Oróstica ML, Rojas I, Díaz P, Parada-Bustamante A, Orihuela PA. Estradiol increases IP3 by a nongenomic mechanism in the smooth muscle cells from the rat oviduct. Reproduction 2015; 150:331-41. [PMID: 26159830 DOI: 10.1530/rep-15-0137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 07/09/2015] [Indexed: 12/20/2022]
Abstract
Estradiol (E2) accelerates egg transport by a nongenomic action, requiring activation of estrogen receptor (ER) and successive cAMP and IP3 production in the rat oviduct. Furthermore, E2 increases IP3 production in primary cultures of oviductal smooth muscle cells. As smooth muscle cells are the mechanical effectors for the accelerated oocyte transport induced by E2 in the oviduct, herein we determined the mechanism by which E2 increases IP3 in these cells. Inhibition of protein synthesis by Actinomycin D did not affect the E2-induced IP3 increase, although this was blocked by the ER antagonist ICI182780 and the inhibitor of phospholipase C (PLC) ET-18-OCH3. Immunoelectron microscopy for ESR1 or ESR2 showed that these receptors were associated with the plasma membrane, indicating compatible localization with E2 nongenomic actions in the smooth muscle cells. Furthermore, ESR1 but not ESR2 agonist mimicked the effect of E2 on the IP3 level. Finally, E2 stimulated the activity of a protein associated with the contractile tone, calcium/calmodulin-dependent protein kinase II (CaMKII), in the smooth muscle cells. We conclude that E2 increases IP3 by a nongenomic action operated by ESR1 and that involves the activation of PLC in the smooth muscle cells of the rat oviduct. This E2 effect is associated with CaMKII activation in the smooth muscle cells, suggesting that IP3 and CaMKII are involved in the contractile activity necessary to accelerate oviductal egg transport.
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Affiliation(s)
- Patricia Reuquén
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - María L Oróstica
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - Israel Rojas
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - Patricia Díaz
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - Alexis Parada-Bustamante
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - Pedro A Orihuela
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
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20
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Pellegrini M, Bulzomi P, Lecis M, Leone S, Campesi I, Franconi F, Marino M. Endocrine disruptors differently influence estrogen receptor β and androgen receptor in male and female rat VSMC. J Cell Physiol 2014; 229:1061-8. [PMID: 24347325 DOI: 10.1002/jcp.24530] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 12/11/2013] [Indexed: 12/18/2022]
Abstract
Sex steroid hormones differently control the major physiological processes in male and female organisms. In particular, their effects on vascular smooth muscle cells (VSMCs) migration are at the root of sex/gender-related differences reported in the cardiovascular system. Several exogenous substances, defined endocrine disruptor chemicals (EDCs), could interfere with these androgen and estrogen effects; however, the sex/gender-related susceptibility of VSMC motility to EDCs is completely unknown. Here, the effect of naturally occurring (naringenin, Nar) and synthetic (bisphenol A, BPA) EDCs on male and female VSMC motility has been evaluated. 17β-estradiol (E2, 0.1 nM-1 µM) induced a dose-dependent inhibition of motility in female-derived VSMC. In contrast, neither dihydrotestosterone (DHT, 0.01-100 nM) nor the common precursor of sex steroid hormones, testosterone (Tes, 0.01-100 nM) modified male-derived VSMC motility. Estrogen receptor (ER) β subtype-dependent activation of p38 was necessary for the E2 effect on cell motility. High BPA concentration prevented E2 effects in female-derived cells being without any effect in male-derived cells. Nar mimicked E2 effects on female-derived cells even in the presence of E2 or BPA. Intriguingly, Nar also inhibited the male-derived VSMC mobility. This latter effect was prevented by ERβ inhibitor, but not by the androgen receptor (AR) inhibitor. As a whole, ERβ-dependent signals in VSMC results more susceptible to the impact of EDCs than AR signals suggesting a possible high and overall susceptibility of female to EDCs. However, several male-derived cells, including VSMC, express ERβ, which could also serve as target of EDC disruption in male organisms.
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21
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Prossnitz ER, Barton M. Estrogen biology: new insights into GPER function and clinical opportunities. Mol Cell Endocrinol 2014; 389:71-83. [PMID: 24530924 PMCID: PMC4040308 DOI: 10.1016/j.mce.2014.02.002] [Citation(s) in RCA: 285] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 02/04/2014] [Indexed: 12/16/2022]
Abstract
Estrogens play an important role in the regulation of normal physiology, aging and many disease states. Although the nuclear estrogen receptors have classically been described to function as ligand-activated transcription factors mediating genomic effects in hormonally regulated tissues, more recent studies reveal that estrogens also mediate rapid signaling events traditionally associated with G protein-coupled receptors. The G protein-coupled estrogen receptor GPER (formerly GPR30) has now become recognized as a major mediator of estrogen's rapid cellular effects throughout the body. With the discovery of selective synthetic ligands for GPER, both agonists and antagonists, as well as the use of GPER knockout mice, significant advances have been made in our understanding of GPER function at the cellular, tissue and organismal levels. In many instances, the protective/beneficial effects of estrogen are mimicked by selective GPER agonism and are absent or reduced in GPER knockout mice, suggesting an essential or at least parallel role for GPER in the actions of estrogen. In this review, we will discuss recent advances and our current understanding of the role of GPER and the activity of clinically used drugs, such as SERMs and SERDs, in physiology and disease. We will also highlight novel opportunities for clinical development towards GPER-targeted therapeutics, for molecular imaging, as well as for theranostic approaches and personalized medicine.
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Affiliation(s)
- Eric R Prossnitz
- Department of Cell Biology and Physiology, UNM Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87120, USA.
| | - Matthias Barton
- Molecular Internal Medicine, University of Zurich, Switzerland.
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