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Desita EAN, Arfian N, Setyaningsih WAW, Sari DCR. Calcitriol attenuates vascular remodeling in association with alteration of ppET-1/ET BR/eNOS and ET AR expression in acute and chronic phases of kidney ischemia-reperfusion injury in mice. Can J Physiol Pharmacol 2023; 101:8-17. [PMID: 36223656 DOI: 10.1139/cjpp-2022-0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Kidney ischemia-reperfusion injury (IRI) causes acute kidney injury with increasing risk of maladaptive repair through endothelin-1 (ET-1)/endothelin type A receptor (ETAR) signaling. Calcitriol shows renoprotection in kidney fibrosis, however, its effects on vasoactive substances expression and vascular remodeling following kidney IRI remain unclear. This research aimed to investigate Calcitriol's effects on preproendothelin-1 (ppET-1), ETAR, endothelial nitric oxide synthase (eNOS) mRNA expression and vascular remodeling in acute and chronic phases of kidney IRI in mice. Twenty-five male Swiss mice were randomly divided into five groups (n = 5): SO (sham-operated), IR3 (3 day kidney IRI), IR12 (12 day kidney IRI), IRD3 (3 day kidney IRI + Calcitriol 0.5 µg/kg body weight (BW)/day), and IRD12 (12 day kidney IRI + Calcitriol 0.5 µg/kg BW/day). Ischemia-reperfusion injury groups underwent bilateral renal pedicles clamping for 30 min, then reperfusion. Kidneys were harvested for Sirius Red staining to observe interstitial fibrosis and vascular remodeling, polymerase chain reaction to quantify ppET-1, endothelin type B receptor (ETBR), eNOS mRNA expression, and Western blotting to quantify ETAR protein expression. Calcitriol treatment in both phases of kidney IRI showed lower serum creatinine and ETAR protein expression, while higher eNOS and ETBR mRNA expression than IRI-only groups. Furthermore, ppET-1 mRNA expression was higher in IRD3 than IR3, but lower in IRD12 than IR12. Calcitriol also prevented vascular remodeling as indicated by lower wall thickness and higher lumen/wall area ratio than IRI-only groups.
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Affiliation(s)
- Eryna Ayu Nugra Desita
- Department of Anatomy, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Sleman, DI Yogyakarta, 55281, Indonesia
| | - Nur Arfian
- Department of Anatomy, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Sleman, DI Yogyakarta, 55281, Indonesia
| | - Wiwit Ananda Wahyu Setyaningsih
- Department of Anatomy, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Sleman, DI Yogyakarta, 55281, Indonesia
| | - Dwi Cahyani Ratna Sari
- Department of Anatomy, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Sleman, DI Yogyakarta, 55281, Indonesia
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Dao VTV, Elbatreek MH, Deile M, Nedvetsky PI, Güldner A, Ibarra-Alvarado C, Gödecke A, Schmidt HHHW. Non-canonical chemical feedback self-limits nitric oxide-cyclic GMP signaling in health and disease. Sci Rep 2020; 10:10012. [PMID: 32561822 PMCID: PMC7305106 DOI: 10.1038/s41598-020-66639-w] [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] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 05/22/2020] [Indexed: 12/31/2022] Open
Abstract
Nitric oxide (NO)-cyclic GMP (cGMP) signaling is a vasoprotective pathway therapeutically targeted, for example, in pulmonary hypertension. Its dysregulation in disease is incompletely understood. Here we show in pulmonary artery endothelial cells that feedback inhibition by NO of the NO receptor, the cGMP forming soluble guanylate cyclase (sGC), may contribute to this. Both endogenous NO from endothelial NO synthase and exogenous NO from NO donor compounds decreased sGC protein and activity. This effect was not mediated by cGMP as the NO-independent sGC stimulator, or direct activation of cGMP-dependent protein kinase did not mimic it. Thiol-sensitive mechanisms were also not involved as the thiol-reducing agent N-acetyl-L-cysteine did not prevent this feedback. Instead, both in-vitro and in-vivo and in health and acute respiratory lung disease, chronically elevated NO led to the inactivation and degradation of sGC while leaving the heme-free isoform, apo-sGC, intact or even increasing its levels. Thus, NO regulates sGC in a bimodal manner, acutely stimulating and chronically inhibiting, as part of self-limiting direct feedback that is cGMP independent. In high NO disease conditions, this is aggravated but can be functionally recovered in a mechanism-based manner by apo-sGC activators that re-establish cGMP formation.
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Affiliation(s)
- Vu Thao-Vi Dao
- Department of Pharmacology and Personalised Medicine, MeHNS, FHML, Maastricht University, Maastricht, The Netherlands
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt, Germany
| | - Mahmoud H Elbatreek
- Department of Pharmacology and Personalised Medicine, MeHNS, FHML, Maastricht University, Maastricht, The Netherlands.
- Department for Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt.
| | - Martin Deile
- Primary Care Center, Altenberger Str. 27, 01277, Dresden, Germany
| | - Pavel I Nedvetsky
- Universitätsklinikum Münster, Medical Clinic D, Medical Cell Biology, Münster, Germany
| | - Andreas Güldner
- Residency Anesthesiology, Department of Anesthesiology and Critical Care Medicine, Technische Universität, Dresden, Germany
| | - César Ibarra-Alvarado
- Facultad de Química, Universidad Autónoma de Querétaro, Santiago de Querétaro, Mexico
| | - Axel Gödecke
- Institut für Herz- und Kreislaufphysiologie Heinrich-Heine-Universität, Düsseldorf, Germany
| | - Harald H H W Schmidt
- Department of Pharmacology and Personalised Medicine, MeHNS, FHML, Maastricht University, Maastricht, The Netherlands.
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Turbeville HR, Taylor EB, Garrett MR, Didion SP, Ryan MJ, Sasser JM. Superimposed Preeclampsia Exacerbates Postpartum Renal Injury Despite Lack of Long-Term Blood Pressure Difference in the Dahl Salt-Sensitive Rat. Hypertension 2019; 73:650-658. [PMID: 30612494 PMCID: PMC6374193 DOI: 10.1161/hypertensionaha.118.12097] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Preeclampsia results in increased susceptibility to hypertension and chronic kidney disease postpartum; however, the mechanisms responsible for disease progression in these women remain unknown. The purpose of this study was to test the hypothesis that 2 mechanisms contribute to the link between the maternal syndrome of preeclampsia and the increased postpartum risk of cardiovascular and renal disease: (1) increased T cells in the kidney and (2) a decreased NO:ET-1 (endothelin-1) ratio. Dahl S rats (a previously characterized model of preeclampsia superimposed on chronic hypertension) who experienced 2 pregnancies and virgin littermate controls were studied at 6 months of age. Mean arterial pressure was measured via telemetry, and renal injury was assessed through both histological analysis and measurement of urinary markers including nephrin, podocalyxin, and KIM-1 (kidney injury marker 1). Contributing mechanisms were assessed through flow cytometric analysis of renal T cells, quantification of plasma TNF-α (tumor necrosis factor-α) and IL-10 (interleukin-10), and quantification of urinary concentrations of NO metabolites and ET-1. Although prior pregnancy did not exacerbate the hypertension at 6 months, this group showed greater renal injury compared with virgin littermates. Flow cytometric analyses revealed an increase in renal T cells after pregnancy, and cytokine analysis revealed a systemic proinflammatory shift. Finally, the NO:ET-1 ratio was reduced. These results demonstrate that the link between the maternal syndrome of superimposed preeclampsia and postpartum risk of chronic kidney disease could involve both immune system activation and dysregulation of the NO:ET-1 balance.
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Affiliation(s)
- Hannah R. Turbeville
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Erin B. Taylor
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi
| | - Michael R. Garrett
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Sean P. Didion
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Michael J. Ryan
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi
| | - Jennifer M. Sasser
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi
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Kuruppu S, Rajapakse NW, Parkington HC, Smith I. Pharmacological hypothesis: Nitric oxide-induced inhibition of ADAM-17 activity as well as vesicle release can in turn prevent the production of soluble endothelin-converting enzyme. Pharmacol Res Perspect 2017; 5. [PMID: 28971608 PMCID: PMC5625149 DOI: 10.1002/prp2.335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 02/23/2017] [Accepted: 04/19/2017] [Indexed: 12/20/2022] Open
Abstract
Endothelin‐1 (ET‐1) and nitric oxide (NO) are two highly potent vasoactive molecules with opposing effects on the vasculature. Endothelin‐converting enzyme (ECE) and nitric oxide synthase (NOS) catalyse the production of ET‐1 and NO, respectively. It is well established that these molecules play a crucial role in the initiation and progression of cardiovascular diseases and have therefore become targets of therapy. Many studies have examined the mechanism(s) by which NO regulates ET‐1 production. Expression and localization of ECE‐1 is a key factor that determines the rate of ET‐1 production. ECE‐1 can either be membrane bound or be released from the cell surface to produce a soluble form. NO has been shown to reduce the expression of both membrane‐bound and soluble ECE‐1. Several studies have examined the mechanism(s) behind NO‐mediated inhibition of ECE expression on the cell membrane. However, the precise mechanism(s) behind NO‐mediated inhibition of soluble ECE production are unknown. We hypothesize that both exogenous and endogenous NO, inhibits the production of soluble ECE‐1 by preventing its release via extracellular vesicles (e.g., exosomes), and/or by inhibiting the activity of A Disintegrin and Metalloprotease‐17 (ADAM17). If this hypothesis is proven correct in future studies, these pathways represent targets for the therapeutic manipulation of soluble ECE‐1 production.
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Affiliation(s)
- Sanjaya Kuruppu
- Department of Biochemistry & Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, 3800, Australia
| | - Niwanthi W Rajapakse
- Baker IDI Heart and Diabetes Institute, 75 Commercial Road, Melbourne, Victoria, 3004, Australia
| | - Helena C Parkington
- Department of Physiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, 3800, Australia
| | - Ian Smith
- Department of Biochemistry & Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, 3800, Australia
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Methylglyoxal-Glyoxalase 1 Balance: The Root of Vascular Damage. Int J Mol Sci 2017; 18:ijms18010188. [PMID: 28106778 PMCID: PMC5297820 DOI: 10.3390/ijms18010188] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/09/2017] [Accepted: 01/10/2017] [Indexed: 12/20/2022] Open
Abstract
The highly reactive dicarbonyl methylglyoxal (MGO) is mainly formed as byproduct of glycolysis. Therefore, high blood glucose levels determine increased MGO accumulation. Nonetheless, MGO levels are also increased as consequence of the ineffective action of its main detoxification pathway, the glyoxalase system, of which glyoxalase 1 (Glo1) is the rate-limiting enzyme. Indeed, a physiological decrease of Glo1 transcription and activity occurs not only in chronic hyperglycaemia but also with ageing, during which MGO accumulation occurs. MGO and its advanced glycated end products (AGEs) are associated with age-related diseases including diabetes, vascular dysfunction and neurodegeneration. Endothelial dysfunction is the first step in the initiation, progression and clinical outcome of vascular complications, such as retinopathy, nephropathy, impaired wound healing and macroangiopathy. Because of these considerations, studies have been centered on understanding the molecular basis of endothelial dysfunction in diabetes, unveiling a central role of MGO-Glo1 imbalance in the onset of vascular complications. This review focuses on the current understanding of MGO accumulation and Glo1 activity in diabetes, and their contribution on the impairment of endothelial function leading to diabetes-associated vascular damage.
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Martínez-Miguel P, Medrano-Andrés D, Griera-Merino M, Ortiz A, Rodríguez-Puyol M, Rodríguez-Puyol D, López-Ongil S. Tweak up-regulates endothelin-1 system in mouse and human endothelial cells. Cardiovasc Res 2016; 113:207-221. [DOI: 10.1093/cvr/cvw239] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 10/20/2016] [Accepted: 11/21/2016] [Indexed: 12/21/2022] Open
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Martínez-Miguel P, Valdivielso JM, Medrano-Andrés D, Román-García P, Cano-Peñalver JL, Rodríguez-Puyol M, Rodríguez-Puyol D, López-Ongil S. The active form of vitamin D, calcitriol, induces a complex dual upregulation of endothelin and nitric oxide in cultured endothelial cells. Am J Physiol Endocrinol Metab 2014; 307:E1085-96. [PMID: 25336523 DOI: 10.1152/ajpendo.00156.2014] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Despite the presence of vitamin D receptor (VDR) in endothelial cells, the effect of vitamin D on endothelial function is unknown. An unbalanced production of vasoactive endothelial factors such as nitric oxide (NO) or endothelin-1 (ET-1) results in endothelial dysfunction, which can alter the normal cardiovascular function. Present experiments were devoted to assess the effect of active vitamin D (calcitriol) on the synthesis of endothelial vasoactive factors. The results were that, in cells, calcitriol increased ET-1 and NO productions, which were measured by ELISA and fluorimetric assay, respectively. Calcitriol also increased endothelin-converting enzyme-1 (ECE-1) and endothelial-nitric oxide synthase (eNOS) activities, their mRNA (qPCR), their protein expressions (Western-blot), and their promoter activities (transfection assays). Calcitriol did not change prepro-ET-1 mRNA. The effect was specific to VDR activation because when VDR was silenced by siRNA, the observed effects disappeared. Mechanisms involved in each upregulation differed. ECE-1 upregulation depended on AP-1 activation, whereas eNOS upregulation depended directly on VDR activation. To evaluate the in vivo consequences of acute calcitriol treatment, normal Wistar rats were treated with a single ip injection of 400 ng/kg calcitriol and euthanized 24 h later. Results confirmed those observed in cells, that production and expression of both factors were increased by calcitriol. Besides, calcitriol-treated rats showed a slight rise in mean blood pressure, which decreased when pretreated with FR-901533, an ECE-1 antagonist. We conclude that calcitriol increases the synthesis of both ET-1 and NO in endothelial cells. However, the ET-1 upregulation seems to be biologically more relevant, as animals acutely treated with calcitriol show slight increases in blood pressure.
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Affiliation(s)
- Patricia Martínez-Miguel
- Research Unit and Nephrology Section, Fundación para la Investigación Biomédica del Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Madrid, Spain
| | | | | | - Pablo Román-García
- Servicio de Metabolismo Mineral y Óseo, Hospital Universitario Central de Asturias, Universidad de Oviedo, Oviedo, Spain; Instituto Reina Sofía de Investigación Nefrológica, Madrid, Spain; and
| | | | - Manuel Rodríguez-Puyol
- Instituto Reina Sofía de Investigación Nefrológica, Madrid, Spain; and Physiology Department, Universidad de Alcalá, Madrid, Spain
| | - Diego Rodríguez-Puyol
- Research Unit and Nephrology Section, Fundación para la Investigación Biomédica del Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Madrid, Spain; Instituto Reina Sofía de Investigación Nefrológica, Madrid, Spain; and
| | - Susana López-Ongil
- Research Unit and Instituto Reina Sofía de Investigación Nefrológica, Madrid, Spain; and
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Hyndman KA, Bugaj V, Mironova E, Stockand JD, Pollock JS. NOS1-dependent negative feedback regulation of the epithelial sodium channel in the collecting duct. Am J Physiol Renal Physiol 2014; 308:F244-51. [PMID: 25391901 DOI: 10.1152/ajprenal.00596.2013] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
With an increase in urine flow there is a significant increase in shear stress against the renal epithelium including the inner medullary collecting duct, resulting in an increase in nitric oxide (NO) production. The mechanisms of the shear stress-mediated increases in NO are undetermined. Previous studies found that shear stress increases epithelial sodium channel (ENaC) open probability and endothelin (ET)-1 production in an ENaC-dependent mechanism in the collecting duct (CD). Given that ET-1 stimulates NO production in the CD, we hypothesized that shear stress-induced NO production is downstream of shear stress-induced ENaC activation and ET-1 production in a negative feedback loop. We determined that nitric oxide synthase 1 (NOS1) and NOS3 contribute to shear stress-mediated NO production in the CD, that is attenuated by low doses of the ENaC inhibitors amiloride and benzamil. Moreover, ETB receptor blockade significantly blunted the shear stress-mediated NO production. We further elucidated whether mice lacking NOS1 in the collecting duct (CDNOS1KO) have an impaired renal ET-1 system in the CD. Although urinary ET-1 production and inner medullary ET receptor expression were similar between flox control and CDNOS1KO mice, acute ET-1 treatment significantly reduced ENaC open probability in CDs from flox mice but not CDNOS1KO mice compared with basal. Basal ENaC activity in CDs was similar between the genotypes. We conclude that during acute shear stress across the CD, ENaC acts in a negative feedback loop to stimulate NO production in an ETB/NOS1-dependent manner resulting in a decrease in ENaC open probability and promoting natriuresis.
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Affiliation(s)
- Kelly A Hyndman
- Department of Medicine, Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Vladislav Bugaj
- Department of Physiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas; and
| | - Elena Mironova
- Department of Physiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas; and
| | - James D Stockand
- Department of Physiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas; and
| | - Jennifer S Pollock
- Department of Medicine, Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama; Department of Medicine, Georgia Regents University, Augusta, Georgia
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Kuruppu S, Rajapakse NW, Dunstan RA, Smith AI. Nitric oxide inhibits the production of soluble endothelin converting enzyme-1. Mol Cell Biochem 2014; 396:49-54. [DOI: 10.1007/s11010-014-2141-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Accepted: 07/11/2014] [Indexed: 12/27/2022]
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10
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Nigro C, Raciti GA, Leone A, Fleming TH, Longo M, Prevenzano I, Fiory F, Mirra P, D'Esposito V, Ulianich L, Nawroth PP, Formisano P, Beguinot F, Miele C. Methylglyoxal impairs endothelial insulin sensitivity both in vitro and in vivo. Diabetologia 2014; 57:1485-94. [PMID: 24759959 DOI: 10.1007/s00125-014-3243-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 03/27/2014] [Indexed: 10/25/2022]
Abstract
AIMS/HYPOTHESIS Insulin exerts a direct action on vascular cells, thereby affecting the outcome and progression of diabetic vascular complications. However, the mechanism through which insulin signalling is impaired in the endothelium of diabetic individuals remains unclear. In this work, we have evaluated the role of the AGE precursor methylglyoxal (MGO) in generating endothelial insulin resistance both in cells and in animal models. METHODS Time course experiments were performed on mouse aortic endothelial cells (MAECs) incubated with 500 μmol/l MGO. The glyoxalase-1 inhibitor S-p-bromobenzylglutathione-cyclopentyl-diester (SpBrBzGSHCp2) was used to increase the endogenous levels of MGO. For the in vivo study, an MGO solution was administrated i.p. to C57BL/6 mice for 7 weeks. RESULTS MGO prevented the insulin-dependent activation of the IRS1/protein kinase Akt/endothelial nitric oxide synthase (eNOS) pathway, thereby blunting nitric oxide (NO) production, while extracellular signal-regulated kinase (ERK1/2) activation and endothelin-1 (ET-1) release were increased by MGO in MAECs. Similar results were obtained in MAECs treated with SpBrBzGSHCp2. In MGO- and SpBrBzGSHCp2-exposed cells, inhibition of ERK1/2 decreased IRS1 phosphorylation on S616 and rescued insulin-dependent Akt activation and NO generation, indicating that MGO inhibition of the IRS1/Akt/eNOS pathway is mediated, at least in part, by ERK1/2. Chronic administration of MGO to C57BL/6 mice impaired whole-body insulin sensitivity and induced endothelial insulin resistance. CONCLUSIONS/INTERPRETATION MGO impairs the action of insulin on the endothelium both in vitro and in vivo, at least in part through an ERK1/2-mediated mechanism. These findings may be instrumental in developing novel strategies for preserving endothelial function in diabetes.
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Affiliation(s)
- Cecilia Nigro
- Institute of Experimental Endocrinology and Oncology 'G. Salvatore', National Council of Research, Via Pansini 5, 80131, Naples, Italy
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O'Sullivan S, Medina C, Ledwidge M, Radomski MW, Gilmer JF. Nitric oxide-matrix metaloproteinase-9 interactions: biological and pharmacological significance--NO and MMP-9 interactions. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:603-17. [PMID: 24333402 DOI: 10.1016/j.bbamcr.2013.12.006] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 12/02/2013] [Accepted: 12/05/2013] [Indexed: 12/24/2022]
Abstract
Nitric oxide (NO) and matrix metalloproteinase 9 (MMP-9) levels are found to increase in inflammation states and in cancer, and their levels may be reciprocally modulated. Understanding interactions between NO and MMP-9 is of biological and pharmacological relevance and may prove crucial in designing new therapeutics. The reciprocal interaction between NO and MMP-9 have been studied for nearly twenty years but to our knowledge, are yet to be the subject of a review. This review provides a summary of published data regarding the complex and sometimes contradictory effects of NO on MMP-9. We also analyse molecular mechanisms modulating and mediating NO-MMP-9 interactions. Finally, a potential therapeutic relevance of these interactions is presented.
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Endothelin-converting enzyme-1 (ECE-1) is post-transcriptionally regulated by alternative polyadenylation. PLoS One 2014; 9:e83260. [PMID: 24497914 PMCID: PMC3908869 DOI: 10.1371/journal.pone.0083260] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 11/01/2013] [Indexed: 01/27/2023] Open
Abstract
Endothelin-converting enzyme-1 (ECE-1) is the enzyme predominantly responsible for producing active endothelin-1 (ET-1), a mitogenic peptide implicated in the aetiology of a number of diseases, including cancer. Elevated levels of ECE-1 have been observed in a range of malignancies, with high expression conferring poor prognosis and aiding the acquisition of androgen independence in prostate cancer. The mechanisms regulating the expression of ECE-1 in cancer cells are poorly understood, hampering the development of novel therapies targeting the endothelin axis. Here we provide evidence that the expression of ECE-1 is markedly inhibited by its 3′UTR, and that alternative polyadenylation (APA) results in the production of ECE-1 transcripts with truncated 3′UTRs which promote elevated protein expression. Abolition of the ECE-1 APA sites reduced protein expression from a reporter vector in prostate cancer cells, suggesting these sites are functional. This is the first study to identify ECE-1 as a target for APA, a regulatory mechanism aberrantly activated in cancer cells, and provides novel information about the mechanisms leading to ECE-1 overexpression in malignant cells.
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Martínez-Miguel P, Medrano-Andrés D, Lopes-Martín V, Arribas-Gómez I, Rodríguez-Puyol M, Rodríguez-Puyol D, López-Ongil S. Regulation of endothelin-converting enzyme-1 (ECE-1) by the calcimimetic R-568. Pharmacol Res 2013; 76:106-18. [DOI: 10.1016/j.phrs.2013.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 07/17/2013] [Accepted: 07/24/2013] [Indexed: 11/28/2022]
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Matrix Metalloproteinase Enhances Big-Endothelin-1 Constriction in Mesenteric Vessels of Pregnant Rats With Reduced Uterine Blood Flow. Hypertension 2013; 61:488-93. [DOI: 10.1161/hypertensionaha.111.00055] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Tanfin Z, Breuiller-Fouché M. The endothelin axis in uterine leiomyomas: new insights. Biol Reprod 2012; 87:5, 1-10. [PMID: 22553222 DOI: 10.1095/biolreprod.111.097725] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The endothelin axis, comprising endothelin-1 (ET-1) and its receptors (ETA and ETB), is involved in the pathophysiology of different human tumors. Here we review conventional approaches and gene expression profiling indicating the association of ET-1 and its cognate receptors with human and rat leiomyomas, the most common benign tumors of myometrium. Specifically, ET-1/ETA interactions affect human and rat leiomyoma cell proliferation through protein kinase C and mitogen-activated protein kinase-dependent signaling pathways. Recent experiments demonstrate that the ET-1 axis exerts a potent antiapoptotic effect involving sphingolipid metabolism and prostaglandin-endoperoxide synthase 2/prostaglandin system in the rat Eker leiomyoma tumor-derived ELT3 cell line. Evidence supports that steroid hormones, growth factors, and extracellular matrix are key regulators of the leiomyoma growth. Interestingly, the ET-1 axis is under steroid hormones and can cooperate with these growth factors. Therefore, ET-1 alone or in association with these factors could contribute to the complex regulation of uterine tumor growth, such as proliferation, survival, and extracellular matrix production. This review summarizes current knowledge and emerging data on ET-1 in uterine leiomyoma pathology.
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Affiliation(s)
- Zahra Tanfin
- Université Paris-Sud-11, Centre National de la Recherche Scientifique (CNRS), Institut de Biochimie et Biophysique Moléculaire et Cellulaire, Equipe Signalisation Moléculaire et Cellulaire utérine, Orsay, France
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