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Proença AB, Medeiros GR, Reis GDS, Losito LDF, Ferraz LM, Bargut TCL, Soares NP, Alexandre-Santos B, Campagnole-Santos MJ, Magliano DC, Nobrega ACLD, Santos RAS, Frantz EDC. Adipose tissue plasticity mediated by the counterregulatory axis of the renin-angiotensin system: Role of Mas and MrgD receptors. J Cell Physiol 2024. [PMID: 38577921 DOI: 10.1002/jcp.31265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/28/2024] [Accepted: 03/18/2024] [Indexed: 04/06/2024]
Abstract
The renin-angiotensin system (RAS) is an endocrine system composed of two main axes: the classical and the counterregulatory, very often displaying opposing effects. The classical axis, primarily mediated by angiotensin receptors type 1 (AT1R), is linked to obesity-associated metabolic effects. On the other hand, the counterregulatory axis appears to exert antiobesity effects through the activation of two receptors, the G protein-coupled receptor (MasR) and Mas-related receptor type D (MrgD). The local RAS in adipose organ has prompted extensive research into white adipose tissue and brown adipose tissue (BAT), with a key role in regulating the cellular and metabolic plasticity of these tissues. The MasR activation favors the brown plasticity signature in the adipose organ by improve the thermogenesis, adipogenesis, and lipolysis, decrease the inflammatory state, and overall energy homeostasis. The MrgD metabolic effects are related to the maintenance of BAT functionality, but the signaling remains unexplored. This review provides a summary of RAS counterregulatory actions triggered by Mas and MrgD receptors on adipose tissue plasticity. Focus on the effects related to the morphology and function of adipose tissue, especially from animal studies, will be given targeting new avenues for treatment of obesity-associated metabolic effects.
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Affiliation(s)
- Ana Beatriz Proença
- Department of Physiology, Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
- Department of Morphology, Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Gabriela Rodrigues Medeiros
- Department of Physiology, Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
- Department of Morphology, Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Guilherme Dos Santos Reis
- Department of Physiology, Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
- Department of Morphology, Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Luiza da França Losito
- Department of Physiology, Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
- Department of Morphology, Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Luiza Mazzali Ferraz
- Department of Physiology, Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
- Department of Morphology, Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Thereza Cristina Lonzetti Bargut
- Department of Basic Sciences, Nova Friburgo Health Institute, Fluminense Federal University, Nova Friburgo, Rio de Janeiro, Brazil
| | - Nícia Pedreira Soares
- Department of Physiology and Biophysics, National Institute of Science and Technology in Nanobiopharmaceutics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Beatriz Alexandre-Santos
- Department of Physiology, Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
- Department of Morphology, Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Maria Jose Campagnole-Santos
- Department of Physiology and Biophysics, National Institute of Science and Technology in Nanobiopharmaceutics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - D'Angelo Carlo Magliano
- Department of Morphology, Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Antonio Claudio Lucas da Nobrega
- Department of Physiology, Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - Robson Augusto Souza Santos
- Department of Physiology and Biophysics, National Institute of Science and Technology in Nanobiopharmaceutics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Eliete Dalla Corte Frantz
- Department of Physiology, Laboratory of Exercise Sciences, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
- Department of Morphology, Research Center on Morphology and Metabolism, Biomedical Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
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Larrinaga G, Valdivia A, Arrieta-Aguirre I, Solano-Iturri JD, Ugalde-Olano A, Loizaga-Iriarte A, Santos-Martín A, Pérez-Fernández A, Angulo JC, López JI. The Expression of Alamandine Receptor MrgD in Clear Cell Renal Cell Carcinoma Is Associated with a Worse Prognosis and Unfavorable Response to Antiangiogenic Therapy. Int J Mol Sci 2024; 25:1499. [PMID: 38338778 PMCID: PMC10855800 DOI: 10.3390/ijms25031499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Renal cell carcinoma (RCC) ranks among the most prevalent malignancies in Western countries, marked by its notable heterogeneity, which contributes to an unpredictable clinical trajectory. The insufficiency of dependable biomarkers adds complexity to assessing this tumor progression. Imbalances of several components of the intrarenal renin-angiotensin system (iRAS) significantly impact patient prognoses and responses to first-line immunotherapies. In this study, we analyzed the immunohistochemical expression of the Mas-related G-protein-coupled receptor D (MrgD), which recognizes the novel RAS peptide alamandine (ALA), in a series of 87 clear cell renal cell (CCRCCs), 19 papillary (PRCC), 7 chromophobe (ChRCC) renal cell carcinomas, and 11 renal oncocytomas (RO). MrgD was expressed in all the renal tumor subtypes, with a higher mean staining intensity in the PRCCs, ChRCCs, and ROs. A high expression of MrgD at the tumor center and at the infiltrative front of CCRCC tissues was significantly associated with a high histological grade, large tumor diameter, local invasion, and locoregional node and distant metastasis. Patients with worse 5-year cancer-specific survival and a poorer response to antiangiogenic tyrosine-kinase inhibitors (TKIs) showed higher MrgD expression at the center of their primary tumors. These findings suggest a possible role of MrgD in renal carcinogenetic processes. Further studies are necessary to unveil its potential as a novel biomarker for CCRCC prognosis and response to frontline therapies.
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Affiliation(s)
- Gorka Larrinaga
- Department of Nursing, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
| | - Asier Valdivia
- Department of Cellular Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Inés Arrieta-Aguirre
- Department of Nursing, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Jon Danel Solano-Iturri
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Pathology, Cruces University Hospital, 48903 Barakaldo, Spain
| | - Aitziber Ugalde-Olano
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Pathology, Basurto University Hospital, 48903 Barakaldo, Spain
| | - Ana Loizaga-Iriarte
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Urology, Basurto University Hospital, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain
| | - Aida Santos-Martín
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Urology, Basurto University Hospital, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain
| | - Amparo Pérez-Fernández
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Urology, Basurto University Hospital, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain
| | - Javier C. Angulo
- Clinical Department, Faculty of Medical Sciences, European University of Madrid, 28905 Getafe, Spain;
- Department of Urology, University Hospital of Getafe, 28907 Madrid, Spain
| | - José I. López
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
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Cerri GC, Santos SHS, Bader M, Santos RAS. Brown adipose tissue transcriptome unveils an important role of the Beta-alanine/alamandine receptor, MrgD, in metabolism. J Nutr Biochem 2023; 114:109268. [PMID: 36641071 DOI: 10.1016/j.jnutbio.2023.109268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 10/28/2022] [Accepted: 01/05/2023] [Indexed: 01/13/2023]
Abstract
Alamandine is a recently described heptapeptide component of the renin-angiotensin system (RAS), and its effects are mediated by the receptor Mas-related G protein-coupled receptor D (MrgD) RAS represents an important link between obesity and its consequences by directly modulating the thermogenesis and brown adipose tissue (BAT) function. The alamandine/MrgD metabolic effects and signaling remain unexplored. In this context, the main goal of the present study was to assess the metabolic consequences of MrgD genetic ablation in C57BL6/J mice by evaluating brown adipose tissue RNA sequencing. The main results showed that MrgD-KO mice have diminished brown adipose tissue and that a high-glucose diet (HG) decreased both circulating alamandine levels and MrgD expression in BAT from wild-type mice (WT). BAT transcriptome reveals that MrgD-KO HG mice regulated 45 genes, while WT HG mice regulated 1,148 genes. MrgD-KO mice fed a standard diet (ST) compared with WT ST mice regulated 476 genes, of which 445 genes were downregulated. BAT uses the MrgD receptor to display a normal pattern of gene expression and to respond, like WT mice, to an HG diet. In conclusion, the MrgD signaling is important for the metabolic regulation and manutention of BAT functionality.
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Affiliation(s)
- Gabriela C Cerri
- Laboratory of Hypertension, Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; National Institute of Science and Technology in Nanobiopharmaceutics (INCT-Nanobiofar), Belo Horizonte, Minas Gerais, Brazil
| | - Sérgio H S Santos
- Institute of Agricultural Sciences, Food Engineering College, Federeal University of Minas Gerais, Montes Claros, Minas Gerais, Brazil
| | - Michael Bader
- Max Delbrück Center for Molecular Medicine, Berlin-Buch, Germany; National Institute of Science and Technology in Nanobiopharmaceutics (INCT-Nanobiofar), Belo Horizonte, Minas Gerais, Brazil
| | - Robson A S Santos
- Laboratory of Hypertension, Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; National Institute of Science and Technology in Nanobiopharmaceutics (INCT-Nanobiofar), Belo Horizonte, Minas Gerais, Brazil.
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Liu Q, Zheng B, Zhang Y, Huang W, Hong Q, Meng Y. Alamandine via MrgD receptor attenuates pulmonary fibrosis via NOX4 and autophagy pathway. Can J Physiol Pharmacol 2021; 99:885-893. [PMID: 33517849 DOI: 10.1139/cjpp-2020-0662] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Alamandine (ALA) and its receptor MrgD were recently identified as components of the renin-angiotensin system, which confer protection against cardio-fibrosis and renal-fibrosis; however, the effects of ALA on pulmonary fibrosis are unknown. This study was designed to serve two goals: (i) to evaluate the ALA/MrgD axis ability in the prevention of angiotensin II (Ang II) - induced pulmonary fibrosis in fibroblasts, and (ii) to determine the effect of ALA in bleomycin (BLM) - treated C57B/6 mice. In vivo experiments revealed that the treatment of C57B/6 mice with ALA prevented BLM-induced fibrosis, and these findings were similar to those reported for pirfenidone. The antifibrosis actions of ALA were mediated via alleviation of oxidative injury and autophagy induction. In addition, in vitro studies revealed that ALA treatment attenuated Ang II-induced α-collagen I, CTGF, and α-SMA production in fibroblast which was blocked by D-Pro7-Ang-(1-7), a MrgD antagonist. This led to alleviation of oxidative injury and induction of autophagy similar to that reported for rapamycin. This study demonstrated that ALA via MrgD receptor reduced pulmonary fibrosis through attenuation of oxidative injury and induction of autophagy.
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Affiliation(s)
- Qingxia Liu
- Departments of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Respiratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, China
| | - Bojun Zheng
- Department of Critical Care Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yue Zhang
- Departments of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wenhui Huang
- Departments of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qiaohui Hong
- Departments of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ying Meng
- Departments of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Silva MM, de Souza-Neto FP, Jesus ICGD, Gonçalves GK, Santuchi MDC, Sanches BDL, de Alcântara-Leonídio TC, Melo MB, Vieira MAR, Guatimosim S, Santos RAS, da Silva RF. Alamandine improves cardiac remodeling induced by transverse aortic constriction in mice. Am J Physiol Heart Circ Physiol 2021; 320:H352-H363. [PMID: 33124885 DOI: 10.1152/ajpheart.00328.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 09/30/2020] [Accepted: 10/21/2020] [Indexed: 12/30/2022]
Abstract
Alamandine is the newest identified peptide of the renin-angiotensin system (RAS) and has protective effects in the cardiovascular system. Although the involvement of classical RAS components in the genesis and progression of cardiac remodeling is well known, less is known about the effects of alamandine. Therefore, in the present study we investigated the effects of alamandine on cardiac remodeling induced by transverse aortic constriction (TAC) in mice. Male mice (C57BL/6), 10-12 wk of age, were divided into three groups: sham operated, TAC, and TAC + ALA (30 µg/kg/day alamandine for 14 days). The TAC surgery was performed under ketamine and xylazine anesthesia. At the end of treatment, the animals were submitted to echocardiographic examination and subsequently euthanized for tissue collection. TAC induced myocyte hypertrophy, collagen deposition, and the expression of matrix metalloproteinase (MMP)-2 and transforming growth factor (TGF)-β in the left ventricle. These markers of cardiac remodeling were reduced by oral treatment with alamandine. Western blotting analysis showed that alamandine prevents the increase in ERK1/2 phosphorylation and reverts the decrease in 5'-adenosine monophosphate-activated protein kinase (AMPK)α phosphorylation induced by TAC. Although both TAC and TAC + ALA increased SERCA2 expression, the phosphorylation of phospholamban in the Thr17 residue was increased solely in the alamandine-treated group. The echocardiographic data showed that there are no functional or morphological alterations after 2 wk of TAC. Alamandine treatment prevents myocyte hypertrophy and cardiac fibrosis induced by TAC. Our results reinforce the cardioprotective role of alamandine and highlight its therapeutic potential for treating heart diseases related to pressure overload conditions.NEW & NOTEWORTHY Alamandine is the newest identified component of the renin-angiotensin system protective arm. Considering the beneficial effects already described so far, alamandine is a promising target for cardiovascular disease treatment. We demonstrated for the first time that alamandine improves many aspects of cardiac remodeling induced by pressure overload, including cell hypertrophy, fibrosis, and oxidative stress markers.
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Affiliation(s)
- Mário Morais Silva
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Gleisy Kelly Gonçalves
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Bruno de Lima Sanches
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Marcos Barrouin Melo
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Silvia Guatimosim
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Almeida-Santos AF, de Melo LA, Gonçalves SCA, Oliveira Amaral LB, Santos RAS, Campagnole-Santos MJ, Kangussu LM. Alamandine through MrgD receptor induces antidepressant-like effect in transgenic rats with low brain angiotensinogen. Horm Behav 2021; 127:104880. [PMID: 33129833 DOI: 10.1016/j.yhbeh.2020.104880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/25/2020] [Accepted: 10/22/2020] [Indexed: 01/30/2023]
Abstract
Alamandine (Ala1-Arg2-Val3-Tyr4-Ile5-His6-Pro7), a heptapeptide hormone of the renin-angiotensin system (RAS), exerts its effects through the Mas-related G-protein coupled receptor of the type D, MrgD, which is expressed in different tissues, including the brain. In the present study, we tested the hypothesis that alamandine could attenuate the depression-like behavior observed in transgenic rats with low brain angiotensinogen, TGR (ASrAOGEN)680. Transgenic rats exhibited a significant increase in the immobility time in forced swim test, a phenotype reversed by intracerebroventricular infusion of alamandine. Pretreatment with D-Pro7-Ang-(1-7), a Mas/MrgD receptor antagonist, prevented the antidepressant-like effect induced by this peptide demonstrating, for the first time, that alamandine through MrgD receptor, can modulate depression-like behavior in TGR (ASrAOGEN)680. This result shows an action of alamandine which strengthens the importance of the counter-regulatory arms of the RAS in fight and treatment of neuropsychiatric diseases.
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Affiliation(s)
- Ana F Almeida-Santos
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil; National Institute of Science and Technology in Nanobiopharmaceutics (INCT-Nanobiofar), Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Leonardo A de Melo
- Department of Morphology of the Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Sthéfanie C A Gonçalves
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil; National Institute of Science and Technology in Nanobiopharmaceutics (INCT-Nanobiofar), Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Laura B Oliveira Amaral
- Department of Morphology of the Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Robson A S Santos
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil; National Institute of Science and Technology in Nanobiopharmaceutics (INCT-Nanobiofar), Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.
| | - Maria José Campagnole-Santos
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil; National Institute of Science and Technology in Nanobiopharmaceutics (INCT-Nanobiofar), Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.
| | - Lucas M Kangussu
- National Institute of Science and Technology in Nanobiopharmaceutics (INCT-Nanobiofar), Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil; Department of Morphology of the Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.
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de Souza-Neto FP, Silva MME, Santuchi MC, de Alcântara-Leonídio TC, Motta-Santos D, Oliveira AC, Melo MB, Canta GN, de Souza LE, Irigoyen MCC, Campagnole-Santos MJ, Guatimosim S, Santos RAS, da Silva RF. Alamandine attenuates arterial remodelling induced by transverse aortic constriction in mice. Clin Sci (Lond) 2019; 133:629-43. [PMID: 30737255 DOI: 10.1042/CS20180547] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 01/19/2019] [Accepted: 02/08/2019] [Indexed: 12/27/2022]
Abstract
Aims: The renin-angiotensin system (RAS) plays an important role in the pathophysiology of vascular diseases, especially as a mediator of inflammation and tissue remodelling. Alamandine (Ala1-angiotensin-(1-7)) is a new biologically active peptide from the RAS, interacting with Mas-related G-protein-coupled receptor member D. Although a growing number of studies reveal the cardioprotective effects of alamandine, there is a paucity of data on its participation in vascular remodelling associated events. In the present study, we investigated the effects of alamandine on ascending aorta remodelling after transverse aortic constriction (TAC) in mice. Methods and results: C57BL/6J male mice were divided into the following groups: Sham (sham-operated), TAC (operated) and TAC+ALA (operated and treated with alamandine-HPβCD (2-Hydroxypropyl-β-cyclodextrin), 30 μg/kg/day, by gavage). Oral administration of alamandine for 14 days attenuated arterial remodelling by decreasing ascending aorta media layer thickness and the cells density in the adventitia induced by TAC. Alamandine administration attenuated ascending aorta fibrosis induced by TAC, through a reduction in the following parameters; total collagen deposition, expression collagen III and transforming growth factor-β (TGF-β) transcripts, matrix metalloproteinases (MMPs) activity and vascular expression of MMP-2. Importantly, alamandine decreased vascular expression of proinflammatory genes as CCL2, tumour necrosis factor α (TNF-α) and interleukin-1β (IL-1β), and was able to increase expression of MRC1 and FIZZ1, pro-resolution markers, after TAC surgery. Conclusion: Alamandine treatment attenuates vascular remodelling after TAC, at least in part, through anti-fibrotic and anti-inflammatory effects. Hence, this work opens new avenues for the use of this heptapeptide also as a therapeutic target for vascular disease.
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Tetzner A, Naughton M, Gebolys K, Eichhorst J, Sala E, Villacañas Ó, Walther T. Decarboxylation of Ang-(1-7) to Ala 1-Ang-(1-7) leads to significant changes in pharmacodynamics. Eur J Pharmacol 2018; 833:116-123. [PMID: 29792841 DOI: 10.1016/j.ejphar.2018.05.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 05/18/2018] [Accepted: 05/18/2018] [Indexed: 11/28/2022]
Abstract
The heptapeptide angiotensin (Ang)-(1-7) is part of the beneficial arm of the renin-angiotensin system. Ang-(1-7) has cardiovascular protective effects, stimulates regeneration, and opposes the often detrimental effects of AngII. We recently identified the G protein-coupled receptors Mas and MrgD as receptors for the heptapeptide. Ala1-Ang-(1-7) (Alamandine), a decarboxylated form of Ang-(1-7), has similar vasorelaxant effects, but has been described as only stimulating MrgD. Therefore, this study aimed to characterise the consequences of the lack of the carboxyl group in amino acid 1 on intracellular signalling and to identify the receptor fingerprint for Ala1-Ang-(1-7). In primary endothelial and mesangial cells, Ala1-Ang-(1-7) elevated cAMP concentration. Dose response curves generated with Ang-(1-7) and Ala1-Ang-(1-7) significantly differed from each other, with a much lower EC50 and a bell-shape curve for Ala1-Ang-(1-7). We provided pharmacological proof that both, Mas and MrgD, are functional receptors for Ala1-Ang-(1-7). Consequently, in primary mesangial cells with genetic deficiency in both receptors, the heptapeptide failed to increase cAMP concentration. As we previously described for Ang-(1-7), the Ala1-Ang-(1-7)-mediated cAMP increase in Mas/MrgD-transfected HEK293 cells and primary cells was blocked by the AT2 receptor blocker, PD123319. The very distinct dose-response curves for both heptapeptides could be explained by in silico modelling, electrostatic potential calculations, and an involvement of Galpha i for higher concentrations of Ala1-Ang-(1-7). Our results identify Ala1-Ang-(1-7) as a peptide with specific pharmacodynamic properties and builds the basis for the design of more potent and efficient Ang-(1-7) analogues for therapeutic intervention in a rapidly growing number of diseases.
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Affiliation(s)
- Anja Tetzner
- Dept. Pharmacology and Therapeutics, School of Medicine and School of Pharmacy, University College Cork (UCC), Cork, Ireland; Departments Obstetrics and Paediatric Surgery, University of Leipzig, Leipzig, Germany
| | - Maura Naughton
- Dept. Pharmacology and Therapeutics, School of Medicine and School of Pharmacy, University College Cork (UCC), Cork, Ireland
| | - Kinga Gebolys
- Dept. Pharmacology and Therapeutics, School of Medicine and School of Pharmacy, University College Cork (UCC), Cork, Ireland
| | - Jenny Eichhorst
- Leibniz-Forschungsinstitut for Molekulare Pharmakologie (FMP), Berlin, Germany
| | | | | | - Thomas Walther
- Dept. Pharmacology and Therapeutics, School of Medicine and School of Pharmacy, University College Cork (UCC), Cork, Ireland; Departments Obstetrics and Paediatric Surgery, University of Leipzig, Leipzig, Germany; Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany.
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Hrenak J, Paulis L, Simko F. Angiotensin A/Alamandine/MrgD Axis: Another Clue to Understanding Cardiovascular Pathophysiology. Int J Mol Sci 2016; 17:ijms17071098. [PMID: 27447621 PMCID: PMC4964474 DOI: 10.3390/ijms17071098] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 06/29/2016] [Accepted: 07/02/2016] [Indexed: 12/13/2022] Open
Abstract
The renin-angiotensin system (RAS) plays a crucial role in cardiovascular regulations and its modulation is a challenging target for the vast majority of cardioprotective strategies. However, many biological effects of these drugs cannot be explained by the known mode of action. Our comprehension of the RAS is thus far from complete. The RAS represents an ingenious system of "checks and balances". It incorporates vasoconstrictive, pro-proliferative, and pro-inflammatory compounds on one hand and molecules with opposing action on the other hand. The list of these molecules is still not definitive because new biological properties can be achieved by minor alteration of the molecular structure. The angiotensin A/alamandine-MrgD cascade associates the deleterious and protective branches of the RAS. Its identification provided a novel clue to the understanding of the RAS. Angiotensin A (Ang A) is positioned at the "crossroad" in this system since it either elicits direct vasoconstrictive and pro-proliferative actions or it is further metabolized to alamandine, triggering opposing effects. Alamandine, the central molecule of this cascade, can be generated both from the "deleterious" Ang A as well as from the "protective" angiotensin 1-7. This pathway modulates peripheral and central blood pressure regulation and cardiovascular remodeling. Further research will elucidate its interactions in cardiovascular pathophysiology and its possible therapeutic implications.
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Affiliation(s)
- Jaroslav Hrenak
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia.
- 1st Clinic of Medicine, Donauisar Klinikum, 944 69 Deggendorf, Germany.
| | - Ludovit Paulis
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia.
- Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, 814 38 Bratislava, Slovakia.
| | - Fedor Simko
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia.
- 3rd Clinic of Medicine, Faculty of Medicine, Comenius University, 833 05 Bratislava, Slovakia.
- Institute of Experimental Endocrinology, BMC, Slovak Academy of Sciences, 814 38 Bratislava, Slovakia.
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