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Aztatzi-Aguilar OG, Uribe-Ramírez M, Arias-Montaño JA, Barbier O, De Vizcaya-Ruiz A. Acute and subchronic exposure to air particulate matter induces expression of angiotensin and bradykinin-related genes in the lungs and heart: Angiotensin-II type-I receptor as a molecular target of particulate matter exposure. Part Fibre Toxicol 2015; 12:17. [PMID: 26113123 PMCID: PMC4482198 DOI: 10.1186/s12989-015-0094-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 06/15/2015] [Indexed: 01/03/2023] Open
Abstract
Background Particulate matter (PM) adverse effects on health include lung and heart damage. The renin-angiotensin-aldosterone (RAAS) and kallikrein-kinin (KKS) endocrine systems are involved in the pathophysiology of cardiovascular diseases and have been found to impact lung diseases. The aim of the present study was to evaluate whether PM exposure regulates elements of RAAS and KKS. Methods Sprague–Dawley rats were acutely (3 days) and subchronically (8 weeks) exposed to coarse (CP), fine (FP) or ultrafine (UFP) particulates using a particulate concentrator, and a control group exposed to filtered air (FA). We evaluated the mRNA of the RAAS components At1, At2r and Ace, and of the KKS components B1r, B2r and Klk-1 by RT-PCR in the lungs and heart. The ACE and AT1R protein were evaluated by Western blot, as were HO-1 and γGCSc as indicators of the antioxidant response and IL-6 levels as an inflammation marker. We performed a binding assay to determinate AT1R density in the lung, also the subcellular AT1R distribution in the lungs was evaluated. Finally, we performed a histological analysis of intramyocardial coronary arteries and the expression of markers of heart gene reprogramming (Acta1 and Col3a1). Results The PM fractions induced the expression of RAAS and KKS elements in the lungs and heart in a time-dependent manner. CP exposure induced Ace mRNA expression and regulated its protein in the lungs. Acute and subchronic exposure to FP and UFP induced the expression of At1r in the lungs and heart. All PM fractions increased the AT1R protein in a size-dependent manner in the lungs and heart after subchronic exposure. The AT1R lung protein showed a time-dependent change in subcellular distribution. In addition, the presence of AT1R in the heart was accompanied by a decrease in HO-1, which was concomitant with the induction of Acta1 and Col3a1 and the increment of IL-6. Moreover, exposure to all PM fractions increased coronary artery wall thickness. Conclusion We demonstrate that exposure to PM induces the expression of RAAS and KKS elements, including AT1R, which was the main target in the lungs and the heart.
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Affiliation(s)
- Octavio Gamaliel Aztatzi-Aguilar
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Avenida Instituto Politécnico Nacional, 2508, México D. F, CP. 07360, Mexico.
| | - Marisela Uribe-Ramírez
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Avenida Instituto Politécnico Nacional, 2508, México D. F, CP. 07360, Mexico.
| | - José Antonio Arias-Montaño
- Departamento de Fisiología, Neurociencias y Biofísica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Avenida Instituto Politécnico Nacional, 2508, México D. F, C.P. 07360, Mexico.
| | - Olivier Barbier
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Avenida Instituto Politécnico Nacional, 2508, México D. F, CP. 07360, Mexico.
| | - Andrea De Vizcaya-Ruiz
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Avenida Instituto Politécnico Nacional, 2508, México D. F, CP. 07360, Mexico.
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Clauss F, Charloux A, Piquard F, Doutreleau S, Talha S, Zoll J, Lugnier C, Geny B. Angiotensin-converting enzyme inhibition prevents myocardial infarction-induced increase in renal cortical cGMP and cAMP phosphodiesterase activities. Fundam Clin Pharmacol 2015; 29:352-61. [PMID: 25939307 DOI: 10.1111/fcp.12124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 03/05/2015] [Accepted: 04/16/2015] [Indexed: 12/28/2022]
Abstract
We investigated whether myocardial infarction (MI) enhances renal phosphodiesterases (PDE) activities, investigating particularly the relative contribution of PDE1-5 isozymes in total PDE activity involved in both cGMP and cAMP pathways, and whether angiotensin-converting enzyme inhibition (ACEi) decreases such renal PDE hyperactivities. We also investigated whether ACEi might thereby improve atrial natriuretic peptide (ANP) efficiency. We studied renal cortical PDE1-5 isozyme activities in sham (SH)-operated, MI rats and in MI rats treated with perindopril (ACEi) 1 month after coronary artery ligation. Circulating atrial natriuretic peptide (ANP), its second intracellular messenger cyclic guanosine monophosphate (cGMP) and cGMP/ANP ratio were also determined. Cortical cGMP-PDE2 (80.3 vs. 65.1 pmol/min/mg) and cGMP-PDE1 (50.7 vs. 30.1 pmol/min/mg), and cAMP-PDE2 (161 vs. 104.1 pmol/min/mg) and cAMP-PDE4 (307.5 vs. 197.2 pmol/min/mg) activities were higher in MI than in SH rats. Despite increased ANP plasma level, ANP efficiency tended to be decreased in MI compared to SH rats. Perindopril restored PDE activities and tended to improve ANP efficiency in MI rats. One month after coronary ligation, perindopril treatment of MI rats prevents the increase in renal cortical PDE activities. This may contribute to increase renal ANP efficiency in MI rats.
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Affiliation(s)
- François Clauss
- EA3072, Translational Medicine Federation, Institute of Physiology, University of Strasbourg, 67000, Strasbourg, France
| | - Anne Charloux
- EA3072, Translational Medicine Federation, Institute of Physiology, University of Strasbourg, 67000, Strasbourg, France.,Department of Physiology and Functional Explorations, Pôle de Pathologie thoracique, CHRU Hôpitaux Universitaires, BP 426, 67091, Strasbourg Cedex, France
| | - François Piquard
- EA3072, Translational Medicine Federation, Institute of Physiology, University of Strasbourg, 67000, Strasbourg, France.,Department of Physiology and Functional Explorations, Pôle de Pathologie thoracique, CHRU Hôpitaux Universitaires, BP 426, 67091, Strasbourg Cedex, France
| | - Stéphane Doutreleau
- EA3072, Translational Medicine Federation, Institute of Physiology, University of Strasbourg, 67000, Strasbourg, France.,Department of Physiology and Functional Explorations, Pôle de Pathologie thoracique, CHRU Hôpitaux Universitaires, BP 426, 67091, Strasbourg Cedex, France
| | - Samy Talha
- EA3072, Translational Medicine Federation, Institute of Physiology, University of Strasbourg, 67000, Strasbourg, France.,Department of Physiology and Functional Explorations, Pôle de Pathologie thoracique, CHRU Hôpitaux Universitaires, BP 426, 67091, Strasbourg Cedex, France
| | - Joffrey Zoll
- EA3072, Translational Medicine Federation, Institute of Physiology, University of Strasbourg, 67000, Strasbourg, France.,Department of Physiology and Functional Explorations, Pôle de Pathologie thoracique, CHRU Hôpitaux Universitaires, BP 426, 67091, Strasbourg Cedex, France
| | - Claire Lugnier
- CNRS-UMR 7213 Biophotonic and Pharmacology, 74 route du Rhin, BP 24, 67401, Illkirch, France
| | - Bernard Geny
- EA3072, Translational Medicine Federation, Institute of Physiology, University of Strasbourg, 67000, Strasbourg, France.,Department of Physiology and Functional Explorations, Pôle de Pathologie thoracique, CHRU Hôpitaux Universitaires, BP 426, 67091, Strasbourg Cedex, France
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Sykes SD, Mitchell C, Pringle KG, Wang Y, Zakar T, Lumbers ER. Methylation of promoter regions of genes of the human intrauterine Renin Angiotensin system and their expression. Int J Endocrinol 2015; 2015:459818. [PMID: 25918528 PMCID: PMC4396557 DOI: 10.1155/2015/459818] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/11/2015] [Accepted: 03/16/2015] [Indexed: 02/07/2023] Open
Abstract
The intrauterine renin angiotensin system (RAS) is implicated in placentation and labour onset. Here we investigate whether promoter methylation of RAS genes changes with gestation or labour and if it affects gene expression. Early gestation amnion and placenta were studied, as were term amnion, decidua, and placenta collected before labour (at elective caesarean section) or after spontaneous labour and delivery. The expression and degree of methylation of the prorenin receptor (ATP6AP2), angiotensin converting enzyme (ACE), angiotensin II type 1 receptor (AGTR1), and two proteases that can activate prorenin (kallikrein, KLK1, and cathepsin D, CTSD) were measured by qPCR and a DNA methylation array. There was no effect of gestation or labour on the methylation of RAS genes and CTSD. Amnion and decidua displayed strong correlations between the percent hypermethylation of RAS genes and CTSD, suggestive of global methylation. There were no correlations between the degree of methylation and mRNA abundance of any genes studied. KLK1 was the most methylated gene and the proportion of hypermethylated KLK1 alleles was lower in placenta than decidua. The presence of intermediate methylated alleles of KLK1 in early gestation placenta and in amnion after labour suggests that KLK1 methylation is uniquely dynamic in these tissues.
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Affiliation(s)
- Shane D. Sykes
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, NSW 2308, Australia
- Mothers and Babies Research Centre, Hunter Medical Research Institute, Newcastle, NSW 2308, Australia
| | - Carolyn Mitchell
- Mothers and Babies Research Centre, Hunter Medical Research Institute, Newcastle, NSW 2308, Australia
- School of Medicine and Public Health, University of Newcastle, Newcastle, NSW 2308, Australia
| | - Kirsty G. Pringle
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, NSW 2308, Australia
- Mothers and Babies Research Centre, Hunter Medical Research Institute, Newcastle, NSW 2308, Australia
| | - Yu Wang
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, NSW 2308, Australia
- Mothers and Babies Research Centre, Hunter Medical Research Institute, Newcastle, NSW 2308, Australia
| | - Tamas Zakar
- Mothers and Babies Research Centre, Hunter Medical Research Institute, Newcastle, NSW 2308, Australia
- School of Medicine and Public Health, University of Newcastle, Newcastle, NSW 2308, Australia
- Department of Obstetrics and Gynaecology, John Hunter Hospital, Newcastle, NSW 2308, Australia
| | - Eugenie R. Lumbers
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, NSW 2308, Australia
- Mothers and Babies Research Centre, Hunter Medical Research Institute, Newcastle, NSW 2308, Australia
- *Eugenie R. Lumbers:
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Valdés G, Schneider D, Corthorn J, Ortíz R, Acuña S, Padilla O. Administration of angiotensin II and a bradykinin B2 receptor blocker in midpregnancy impairs gestational outcome in guinea pigs. Reprod Biol Endocrinol 2014; 12:49. [PMID: 24893657 PMCID: PMC4062647 DOI: 10.1186/1477-7827-12-49] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 05/25/2014] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND The opposing renin-angiotensin system (RAS) and kallikrein-kinin system (KKS) are upregulated in pregnancy and localize in the utero-placental unit. To test their participation as counter-regulators, circulating angiotensin II (AII) was exogenously elevated and the bradykinin B2 receptor (B2R) was antagonized in pregnant guinea-pigs. We hypothesized that disrupting the RAS/KKS balance during the period of maximal trophoblast invasion and placental development would provoke increased blood pressure, defective trophoblast invasion and a preeclampsia-like syndrome. METHODS Pregnant guinea-pigs received subcutaneous infusions of AII (200 μg/kg/day), the B2R antagonist Bradyzide (BDZ; 62.5 microg/kg/day), or both (AII + BDZ) from gestational day 20 to 34. Non-pregnant cycling animals were included in a control group (C NP) or received AII + BDZ (AII + BDZ NP) during 14 days. Systolic blood pressure was determined during cycle in C NP, and on the last day of infusion, and 6 and 26 days thereafter in the remaining groups. Twenty six days after the infusions blood and urine were extracted, fetuses, placentas and kidneys were weighed, and trophoblast invasion of spiral arteries was defined in the utero-placental units by immunocytochemistry. RESULTS Systolic blood pressure transiently rose in a subgroup of the pregnant females while receiving AII + BDZ infusion, but not in AII + BDZ NP. Plasma creatinine was higher in AII- and BDZ-treated dams, but no proteinuria or hyperuricemia were observed. Kidney weight increased in AII + BDZ-treated pregnant and non-pregnant females. Aborted and dead fetuses were increased in dams that received AII and AII + BDZ. The fetal/placental weight ratio was reduced in litters of AII + BDZ-treated mothers. All groups that received interventions during pregnancy showed reduced replacement of endothelial cells by extravillous trophoblasts in lateral and myometrial spiral arteries. CONCLUSIONS The acute effects on fetal viability, and the persistently impaired renal/placental sufficiency and incomplete arterial remodeling implicate the RAS and KKS in the adaptations in pregnancy. The results partially confirm our hypothesis, as a preeclampsia-like syndrome was not induced. We demonstrate the feasibility of characterizing systemic and local modifications in pregnant guinea-pig, supporting its use to study normal placentation and related disorders.
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Affiliation(s)
- Gloria Valdés
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
- Departamento de Nefrología, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Daniela Schneider
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Jenny Corthorn
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
- Departamento de Nefrología, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Rita Ortíz
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Stephanie Acuña
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Oslando Padilla
- Departamento de Salud Pública, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
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Protective effect of captopril against clozapine-induced myocarditis in rats: Role of oxidative stress, proinflammatory cytokines and DNA damage. Chem Biol Interact 2014; 216:43-52. [DOI: 10.1016/j.cbi.2014.03.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 03/20/2014] [Accepted: 03/26/2014] [Indexed: 12/21/2022]
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Silva JA, Santana ET, Manchini MT, Antônio EL, Bocalini DS, Krieger JE, Tucci PJF, Serra AJ. Exercise training can prevent cardiac hypertrophy induced by sympathetic hyperactivity with modulation of kallikrein-kinin pathway and angiogenesis. PLoS One 2014; 9:e91017. [PMID: 24614810 PMCID: PMC3948752 DOI: 10.1371/journal.pone.0091017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 02/07/2014] [Indexed: 01/19/2023] Open
Abstract
Sympathetic hyperactivity induces adverse effects in myocardial. Recent studies have shown that exercise training induces cardioprotection against sympathetic overload; however, relevant mechanisms of this issue remain unclear. We analyzed whether exercise can prevent pathological hypertrophy induced by sympathetic hyperactivity with modulation of the kallikrein-kinin and angiogenesis pathways. Male Wistar rats were assigned to non-trained group that received vehicle; non-trained isoproterenol treated group (Iso, 0.3 mg kg(-1) day-(1)); and trained group (Iso+Exe) which was subjected to sympathetic hyperactivity with isoproterenol. The Iso rats showed hypertrophy and myocardial dysfunction with reduced force development and relaxation of muscle. The isoproterenol induced severe fibrosis, apoptosis and reduced myocardial capillary. Interestingly, exercise blunted hypertrophy, myocardial dysfunction, fibrosis, apoptosis and capillary decreases. The sympathetic hyperactivity was associated with high abundance of ANF mRNA and β-MHC mRNA, which was significantly attenuated by exercise. The tissue kallikrein was augmented in the Iso+Exe group, and kinin B1 receptor mRNA was increased in the Iso group. Moreover, exercise induced an increase of kinin B2 receptor mRNA in myocardial. The myocardial content of eNOS, VEGF, VEGF receptor 2, pAkt and Bcl-2 were increased in the Iso+Exe group. Likewise, increased expression of pro-apoptotic Bad in the Iso rats was prevented by prior exercise. Our results represent the first demonstration that exercise can modulate kallikrein-kinin and angiogenesis pathways in the myocardial on sympathetic hyperactivity. These findings suggest that kallikrein-kinin and angiogenesis may have a key role in protecting the heart.
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Affiliation(s)
- José Antônio Silva
- Universidade Nove de Julho (Uninove), Programa de Pós-graduação em Ciências da Reabilitação, Rua Vergueiro, São Paulo, SP, Brazil
- Universidade Nove de Julho (Uninove), Programa de Pós-graduação em Medicina, Rua Vergueiro, São Paulo, SP, Brazil
| | - Eduardo Tadeu Santana
- Universidade Nove de Julho (Uninove), Programa de Pós-graduação em Ciências da Reabilitação, Rua Vergueiro, São Paulo, SP, Brazil
| | - Martha Trindade Manchini
- Universidade Nove de Julho (Uninove), Programa de Pós-graduação em Ciências da Reabilitação, Rua Vergueiro, São Paulo, SP, Brazil
| | - Ednei Luis Antônio
- Universidade Federal de São Paulo (Unifesp), Rua Napoleão de Barros, São Paulo, SP, Brazil
| | - Danilo Sales Bocalini
- Universidade Nove de Julho (Uninove), Programa de Pós-graduação em Ciências da Reabilitação, Rua Vergueiro, São Paulo, SP, Brazil
| | - José Eduardo Krieger
- Universidade de São Paulo, Incor. Av. Dr. Enéas de Carvalho Aguiar, São Paulo, SP, Brazil
| | | | - Andrey Jorge Serra
- Universidade Nove de Julho (Uninove), Programa de Pós-graduação em Ciências da Reabilitação, Rua Vergueiro, São Paulo, SP, Brazil
- Universidade Nove de Julho (Uninove), Programa de Pós-graduação em Medicina, Rua Vergueiro, São Paulo, SP, Brazil
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Flores-Monroy J, Ferrario CM, Valencia-Hernández I, Hernández-Campos ME, Martínez-Aguilar L. Comparative Effects of a Novel Angiotensin-Converting Enzyme Inhibitor versus Captopril on Plasma Angiotensins after Myocardial Infarction. Pharmacology 2014; 94:21-8. [DOI: 10.1159/000365093] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 06/03/2014] [Indexed: 11/19/2022]
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