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Pascarella F, Scaramuzzo RT, Pini A, Cammalleri M, Bagnoli P, Ciantelli M, Filippi L. Propranolol: a new pharmacologic approach to counter retinopathy of prematurity progression. Front Pediatr 2024; 12:1322783. [PMID: 38292211 PMCID: PMC10824858 DOI: 10.3389/fped.2024.1322783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/04/2024] [Indexed: 02/01/2024] Open
Abstract
Despite the evident progress in neonatal medicine, retinopathy of prematurity (ROP) remains a serious threat to the vision of premature infants, due to a still partial understanding of the mechanisms underlying the development of this disease and the lack of drugs capable of arresting its progression. Although ROP is a multifactorial disease, retinal vascularization is strictly dependent on oxygen concentration. The exposition of the retina of a preterm newborn, still incompletely vascularized, to an atmosphere relatively hyperoxic, as the extrauterine environment, induces the downregulation of proangiogenic factors and therefore the interruption of vascularization (first ischemic phase of ROP). However, over the following weeks, the growing metabolic requirement of this ischemic retina produces a progressive hypoxia that specularly promotes the surge of proangiogenic factors, finally leading to proliferative retinopathy (second proliferative phase of ROP). The demonstration that the noradrenergic system is actively involved in the coupling between hypoxia and the induction of vasculogenesis paved the way for a pharmacologic intervention aimed at counteracting the interaction of noradrenaline with specific receptors and consequently the progression of ROP. A similar trend has been observed in infantile hemangiomas, the most common vascular lesion of childhood induced by pre-existing hypoxia, which shares similar characteristics with ROP. The fact that propranolol, an unselective antagonist of β1/2 adrenoceptors, counteracts the growth of infantile hemangiomas, suggested the idea of testing the efficacy of propranolol in infants with ROP. From preclinical studies, ongoing clinical trials demonstrated that topical administration of propranolol likely represents the optimal approach to reconcile its efficacy and maximum safety. Given the strict relationship between vessels and neurons, recovering retinal vascularization with propranolol may add further efficacy to prevent retinal dysfunction. In conclusion, the strategy of contrasting precociously the progression of the disease appears to be more advantageous than the current wait-and-see therapeutic approach, which instead is mainly focused on avoiding retinal detachment.
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Affiliation(s)
| | | | - Alessandro Pini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Maurizio Cammalleri
- Unit of General Physiology, Department of Biology, University of Pisa, Pisa, Italy
| | - Paola Bagnoli
- Unit of General Physiology, Department of Biology, University of Pisa, Pisa, Italy
| | | | - Luca Filippi
- Neonatology Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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Gambardella J, Santulli G, Fiordelisi A, Cerasuolo FA, Wang X, Prevete N, Sommella E, Avvisato R, Buonaiuto A, Altobelli GG, Rinaldi L, Chiuso F, Feliciello A, Dal Piaz F, Campiglia P, Ciccarelli M, Morisco C, Sadoshima J, Iaccarino G, Sorriento D. Infiltrating macrophages amplify doxorubicin-induced cardiac damage: role of catecholamines. Cell Mol Life Sci 2023; 80:323. [PMID: 37819449 PMCID: PMC10567889 DOI: 10.1007/s00018-023-04922-5] [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: 05/11/2023] [Revised: 08/12/2023] [Accepted: 08/13/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND The functional contribution of non-myocyte cardiac cells, such as inflammatory cells, in the setup of heart failure in response to doxorubicin (Dox) is recently becoming of growing interest. OBJECTIVES The study aims to evaluate the role of macrophages in cardiac damage elicited by Dox treatment. METHODS C57BL/6 mice were treated with one intraperitoneal injection of Dox (20 mg/kg) and followed up for 5 days by cardiac ultrasounds (CUS), histological, and flow cytometry evaluations. We also tested the impact of Dox in macrophage-depleted mice. Rat cardiomyoblasts were directly treated with Dox (D-Dox) or with a conditioned medium from cultured murine macrophages treated with Dox (M-Dox). RESULTS In response to Dox, macrophage infiltration preceded cardiac damage. Macrophage depletion prevents Dox-induced damage, suggesting a key role of these cells in promoting cardiotoxicity. To evaluate the crosstalk between macrophages and cardiac cells in response to DOX, we compared the effects of D-Dox and M-Dox in vitro. Cell vitality was lower in cardiomyoblasts and apoptosis was higher in response to M-Dox compared with D-Dox. These events were linked to p53-induced mitochondria morphology, function, and autophagy alterations. We identify a mechanistic role of catecholamines released by Dox-activated macrophages that lead to mitochondrial apoptosis of cardiac cells through β-AR stimulation. CONCLUSIONS Our data indicate that crosstalk between macrophages and cardiac cells participates in cardiac damage in response to Dox.
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Affiliation(s)
- Jessica Gambardella
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
- Department of Medicine (Cardiology) and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Montefiore University Hospital, New York, USA
| | - Gaetano Santulli
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
- Department of Medicine (Cardiology) and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Montefiore University Hospital, New York, USA
- Hypertension Research Center (CIRIAPA), Federico II University, Naples, Italy
| | - Antonella Fiordelisi
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | | | - Xujun Wang
- Department of Medicine (Cardiology) and Department of Molecular Pharmacology, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Montefiore University Hospital, New York, USA
| | - Nella Prevete
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), CNR, Naples, Italy
| | - Eduardo Sommella
- Department of Pharmacy, University of Salerno, Fisciano (Salerno), Italy
| | - Roberta Avvisato
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Antonietta Buonaiuto
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | | | - Laura Rinaldi
- Department of Molecular Medicine and Medical Biotechnology, Federico II University, Naples, Italy
| | - Francesco Chiuso
- Department of Molecular Medicine and Medical Biotechnology, Federico II University, Naples, Italy
| | - Antonio Feliciello
- Department of Molecular Medicine and Medical Biotechnology, Federico II University, Naples, Italy
| | - Fabrizio Dal Piaz
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno (Salerno), Baronissi, Italy
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, Fisciano (Salerno), Italy
| | - Michele Ciccarelli
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno (Salerno), Baronissi, Italy
| | - Carmine Morisco
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Rutgers University, Newark, New Jersey, USA
| | - Guido Iaccarino
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
- Hypertension Research Center (CIRIAPA), Federico II University, Naples, Italy
| | - Daniela Sorriento
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy.
- Hypertension Research Center (CIRIAPA), Federico II University, Naples, Italy.
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Britto-Júnior J, Lima AT, Fuguhara V, Monica FZ, Antunes E, De Nucci G. Investigation on the positive chronotropic action of 6-nitrodopamine in the rat isolated atria. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:1279-1290. [PMID: 36719453 DOI: 10.1007/s00210-023-02394-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 01/10/2023] [Indexed: 02/01/2023]
Abstract
6-Nitrodopamine (6-ND) is released from rat isolated atria being 100 times more potent than noradrenaline and adrenaline, and 10,000 times more potent than dopamine as a positive chronotropic agent. The present study aimed to investigate the interactions of 6-ND with the classical catecholamines, phosphodiesterase (PDE)-3 and PDE4, and the protein kinase A in rat isolated atria. Atrial incubation with 1 pM of dopamine, noradrenaline, or adrenaline had no effect on atrial frequency. Similar results were observed when the atria were incubated with 0.01 pM of 6-ND. However, co-incubation of 6-ND (0.01 pM) with dopamine, noradrenaline, or adrenaline (1 pM each) resulted in significant increases in atrial rate, which persisted over 30 min after washout of the agonists. The increased atrial frequency induced by co-incubation of 6-ND with the catecholamines was significantly reduced by the voltage-gated sodium channel blocker tetrodotoxin (1 µM, 30 min), indicating that the positive chronotropic effect of 6-ND is due in part to activation of nerve terminals. Pre-treatment of the animals with reserpine had no effect on the positive chronotropic effect induced by dopamine, noradrenaline, or adrenaline; however, reserpine markedly reduced the 6-ND (1 pM)-induced positive chronotropic effect. Incubation of the rat isolated atria with the protein kinase A inhibitor H-89 (1 µM, 30 min) abolished the increased atrial frequency induced by dopamine, noradrenaline, and adrenaline, but only attenuated the increases induced by 6-ND. 6-ND induces catecholamine release from adrenergic terminals and increases atrial frequency independently of PKA activation.
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Affiliation(s)
- José Britto-Júnior
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessália Vieira de Camargo, 126, Cidade Universitária, 13083-887, Campinas, São Paulo, Brazil.
| | - Antonio Tiago Lima
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessália Vieira de Camargo, 126, Cidade Universitária, 13083-887, Campinas, São Paulo, Brazil
| | - Vivian Fuguhara
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessália Vieira de Camargo, 126, Cidade Universitária, 13083-887, Campinas, São Paulo, Brazil
| | - Fabiola Z Monica
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessália Vieira de Camargo, 126, Cidade Universitária, 13083-887, Campinas, São Paulo, Brazil
| | - Edson Antunes
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessália Vieira de Camargo, 126, Cidade Universitária, 13083-887, Campinas, São Paulo, Brazil
| | - Gilberto De Nucci
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Rua Tessália Vieira de Camargo, 126, Cidade Universitária, 13083-887, Campinas, São Paulo, Brazil
- Department of Pharmacology, Faculty of Medicine, São Leopoldo Mandic, Campinas, SP, Brazil
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, SP, Brazil
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de Oliveira LFG, Britto-Júnior J, Lima AT, Moraes MO, Moraes MEA, de Souza VB, Schenka AA, Monica FZ, De Nucci G. Release of 6-nitrodopamine from human popliteal artery and vein. Life Sci 2023:121801. [PMID: 37244364 DOI: 10.1016/j.lfs.2023.121801] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/13/2023] [Accepted: 05/22/2023] [Indexed: 05/29/2023]
Abstract
6-Nitrodopamine (6-ND) is a novel catecholamine that is released from human umbilical cord vessels, and it causes vascular relaxation by acting as a dopamine D2-receptor antagonist. Here it was investigated whether human peripheral vessels obtained from patients who have undergone surgery for leg amputation release 6-ND, and its action in these tissues. Popliteal artery and vein strips present basal release of 6-ND, as measure by liquid chromatography coupled to tandem mass spectrometry. The release was significantly reduced when the tissues were pre-treated with the nitric oxide synthase inhibitor L-NAME (100 μM), or when the endothelium was mechanically removed. In U-46619 (3 nM) pre-contracted rings, 6-ND induced concentration-dependent relaxations (pEC50 8.18 ± 0.05 and 8.40 ± 0.08, in artery and vein rings, respectively). The concentration-dependent relaxations induced by 6-ND were unaffected in tissues pre-treated with L-NAME, but significantly reduced in tissues where the endothelium has been mechanically removed. In U-46619 (3 nM) pre-contracted rings, the selective dopamine D2 receptor antagonist L-741,626 also caused concentration-dependent relaxations (pEC50 8.92 ± 0.22 and 8.79 ± 0.19, in artery and vein rings, respectively). The concentration-dependent relaxations induced by L-741,626 were unaffected in tissues pre-treated with L-NAME, but significantly reduced in tissues where the endothelium has been mechanically removed. This is the first demonstration that 6-nitrodopamine is released from human peripheral artery and vein rings. The results also indicate that endothelium-derived dopamine is a major contractile agent in the popliteal artery and vein, and that selective dopamine D2-receptor antagonists such as 6-ND, may have therapeutic potential in the treatment of human peripheral vascular diseases.
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Affiliation(s)
| | - José Britto-Júnior
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil.
| | - Antonio Tiago Lima
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
| | - Manoel Odorico Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Maria Elisabete A Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Valéria Barbosa de Souza
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
| | - André Almeida Schenka
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
| | - Fabiola Z Monica
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil
| | - Gilberto De Nucci
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, São Paulo, Brazil; Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil; Deparment of Pharmacology, Faculty of Medicine, Metropolitan University of Santos, Santos, São Paulo, Brazil
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Ahmed A, Bibi A, Valoti M, Fusi F. Perivascular Adipose Tissue and Vascular Smooth Muscle Tone: Friends or Foes? Cells 2023; 12:cells12081196. [PMID: 37190105 DOI: 10.3390/cells12081196] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/09/2023] [Accepted: 04/15/2023] [Indexed: 05/17/2023] Open
Abstract
Perivascular adipose tissue (PVAT) is a specialized type of adipose tissue that surrounds most mammalian blood vessels. PVAT is a metabolically active, endocrine organ capable of regulating blood vessel tone, endothelium function, vascular smooth muscle cell growth and proliferation, and contributing critically to cardiovascular disease onset and progression. In the context of vascular tone regulation, under physiological conditions, PVAT exerts a potent anticontractile effect by releasing a plethora of vasoactive substances, including NO, H2S, H2O2, prostacyclin, palmitic acid methyl ester, angiotensin 1-7, adiponectin, leptin, and omentin. However, under certain pathophysiological conditions, PVAT exerts pro-contractile effects by decreasing the production of anticontractile and increasing that of pro-contractile factors, including superoxide anion, angiotensin II, catecholamines, prostaglandins, chemerin, resistin, and visfatin. The present review discusses the regulatory effect of PVAT on vascular tone and the factors involved. In this scenario, dissecting the precise role of PVAT is a prerequisite to the development of PVAT-targeted therapies.
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Affiliation(s)
- Amer Ahmed
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Aasia Bibi
- Nanotechnology Institute, CNR-NANOTEC, Via Monteroni, 73100 Lecce, Italy
| | - Massimo Valoti
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Fabio Fusi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy
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Zhang Y, Pan J, Liu Y, Zhang X, Cheng K. Effects of Ficus pandurata Hance var. angustifolia Cheng Flavonoids on Intestinal Barrier and Cognitive Function by Regulating Intestinal Microbiota. Foods 2023; 12:foods12081682. [PMID: 37107477 PMCID: PMC10137925 DOI: 10.3390/foods12081682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/25/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
More and more evidence has supported the interaction between circadian rhythms and intestinal microbes, which provides new insights into how dietary nutrition can improve host health. Our research showed that Ficus pandurata Hance var. angustifolia Cheng flavonoids (FCF) ameliorated the pathological damage of colon and abnormal intestinal microflora structure in mice with circadian clock disorder and improved their exploration and memory behaviors. Mechanism studies have shown that FCF is involved in regulating metabolic pathways and related metabolites, regulating the expression of related tight junction proteins in the colon and the levels of Aβ and inflammatory factors in the hippocampus. Further analysis found that these metabolites showed a certain correlation with intestinal flora and played a certain role in alleviating intestinal physiological damage and cognitive decline.
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Affiliation(s)
- Yuting Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China
| | - Junjie Pan
- Chemical Biology Center, Lishui Institute of Agriculture and Forestry Sciences, Lishui 323000, China
| | - Yanan Liu
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China
| | - Kejun Cheng
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China
- Chemical Biology Center, Lishui Institute of Agriculture and Forestry Sciences, Lishui 323000, China
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7
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Britto-Júnior J, Lima AT, Santos-Xavier JS, Gonzalez P, Mónica FZ, Campos R, Souza VBD, Schenka AA, Antunes E, Nucci GD. Relaxation of thoracic aorta and pulmonary artery rings of marmosets (Callithrix spp.) by endothelium-derived 6-nitrodopamine. Braz J Med Biol Res 2023; 56:e12622. [PMID: 37042871 PMCID: PMC10085761 DOI: 10.1590/1414-431x2023e12622] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/21/2023] [Indexed: 04/13/2023] Open
Abstract
6-Nitrodopamine is a novel catecholamine released by vascular tissues, heart, and vas deferens. The aim of this study was to investigate whether 6-nitrodopamine is released from the thoracic aorta and pulmonary artery rings of marmosets (Callithrix spp.) and to evaluate the relaxing and anti-contractile actions of this catecholamine. Release of 6-nitrodopamine, dopamine, noradrenaline, and adrenaline was assessed by liquid chromatography with tandem mass spectrometry (LC-MS/MS). The relaxations induced by 6-nitrodopamine and by the selective dopamine D2 receptor antagonist L-741,626 were evaluated on U-46619 (3 nM)-pre-contracted vessels. The effects of 6-nitrodopamine and L-741,626 on the contractions induced by electric-field stimulation (EFS), dopamine, noradrenaline, and adrenaline were also investigated. Both aorta and pulmonary artery rings exhibited endothelium-dependent release of 6-nitrodopamine, which was significantly reduced by the NO synthesis inhibitor L-NAME. Addition of 6-nitrodopamine or L-741,626 caused concentration-dependent relaxations of both vascular tissues, which were almost abolished by endothelium removal, whereas L-NAME and the soluble guanylate cyclase inhibitor ODQ had no effect on 6-nitrodopamine-induced relaxations. Additionally, pre-incubation with 6-nitrodopamine antagonized the dopamine-induced contractions, without affecting the noradrenaline- and adrenaline-induced contractions. Pre-incubation with L-741,626 antagonized the contractions induced by all catecholamines. The EFS-induced contractions were significantly increased by L-NAME, but unaffected by ODQ. Immunohistochemical assays showed no immunostaining of the neural tissue markers S-100 and calretinin in either vascular tissue. The results indicated that 6-nitrodopamine is the major catecholamine released by marmoset vascular tissues, and it acts as a potent and selective antagonist of dopamine D2-like receptors. 6-nitrodopamine release may be the major mechanism by which NO causes vasodilatation.
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Affiliation(s)
- J Britto-Júnior
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brasil
| | - A T Lima
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brasil
| | - J S Santos-Xavier
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brasil
| | - P Gonzalez
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brasil
| | - F Z Mónica
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brasil
| | - R Campos
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, CE, Brasil
- Unidade de Farmacologia Clínica, Centro de Pesquisa e Desenvolvimento de Medicamentos, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - V B de Souza
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brasil
| | - A A Schenka
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brasil
| | - E Antunes
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brasil
| | - G De Nucci
- Departamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brasil
- Unidade de Farmacologia Clínica, Centro de Pesquisa e Desenvolvimento de Medicamentos, Universidade Federal do Ceará, Fortaleza, CE, Brasil
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brasil
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Dorobantu M, Sorriento D. Editorial: Women in hypertension. Front Cardiovasc Med 2023; 10:1156589. [PMID: 37034330 PMCID: PMC10080142 DOI: 10.3389/fcvm.2023.1156589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/14/2023] [Indexed: 04/11/2023] Open
Affiliation(s)
- Maria Dorobantu
- Department of Cardiology, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
- The Romanian Academy, Bucharest, Romania
| | - Daniela Sorriento
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
- CIRIAPA Interdepartmental Center for Research on Arterial Hypertension and Associated Conditions CIRIAPA, Federico II University, Naples, Italy
- Correspondence: Daniela Sorriento
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Kaulanjan-Checkmodine P, Oucherif S, Prey S, Gontier E, Lacomme S, Loot M, Miljkovic-Licina M, Cario M, Léauté-Labrèze C, Taieb A, Moisan F, Rezvani HR. Is Infantile Hemangioma a Neuroendocrine Tumor? Int J Mol Sci 2022; 23:ijms23095140. [PMID: 35563552 PMCID: PMC9104933 DOI: 10.3390/ijms23095140] [Citation(s) in RCA: 4] [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: 02/03/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 02/04/2023] Open
Abstract
Infantile hemangioma (IH) is the most common infantile tumor, affecting 5–10% of newborns. Propranolol, a nonselective β-adrenergic receptor (ADRB) antagonist, is currently the first-line treatment for severe IH; however, both its mechanism of action and its main cellular target remain poorly understood. Since betablockers can antagonize the effect of natural ADRB agonists, we postulated that the catecholamine produced in situ in IH may have a role in the propranolol response. By quantifying catecholamines in the IH tissues, we found a higher amount of noradrenaline (NA) in untreated proliferative IHs than in involuted IHs or propranolol-treated IHs. We further found that the first three enzymes of the catecholamine biosynthesis pathway are expressed by IH cells and that their levels are reduced in propranolol-treated tumors. To study the role of NA in the pathophysiology of IH and its response to propranolol, we performed an in vitro angiogenesis assay in which IH-derived endothelial cells, pericytes and/or telocytes were incorporated. The results showed that the total tube formation is sensitive to propranolol only when exogenous NA is added in the three-cell model. We conclude that the IH’s sensitivity to propranolol depends on crosstalk between the endothelial cells, pericytes and telocytes in the context of a high local amount of local NA.
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Affiliation(s)
| | - Sandra Oucherif
- BRIC, UMR 1312, Inserm, University Bordeaux, F-33076 Bordeaux, France; (P.K.-C.); (S.O.); (S.P.); (M.C.); (C.L.-L.); (A.T.)
| | - Sorilla Prey
- BRIC, UMR 1312, Inserm, University Bordeaux, F-33076 Bordeaux, France; (P.K.-C.); (S.O.); (S.P.); (M.C.); (C.L.-L.); (A.T.)
- Service de Dermatologie Adulte et Pédiatrique, CHU de Bordeaux, F-33000 Bordeaux, France
| | - Etienne Gontier
- Electron Microscopy Unit, Bordeaux Imaging Center, F-33076 Bordeaux, France; (E.G.); (S.L.)
| | - Sabrina Lacomme
- Electron Microscopy Unit, Bordeaux Imaging Center, F-33076 Bordeaux, France; (E.G.); (S.L.)
| | - Maya Loot
- CHU de Bordeaux, Service de Chirurgie Pédiatrique, F-33000 Bordeaux, France;
| | - Marijana Miljkovic-Licina
- Department of Pathology and Immunology, University of Geneva Medical School, Rue Michel-Servet 1, CH-1211 Geneva, Switzerland;
| | - Muriel Cario
- BRIC, UMR 1312, Inserm, University Bordeaux, F-33076 Bordeaux, France; (P.K.-C.); (S.O.); (S.P.); (M.C.); (C.L.-L.); (A.T.)
- Centre de Référence pour les Maladies Rares de la Peau, CHU de Bordeaux, INSERM U1312, F-33000 Bordeaux, France
| | - Christine Léauté-Labrèze
- BRIC, UMR 1312, Inserm, University Bordeaux, F-33076 Bordeaux, France; (P.K.-C.); (S.O.); (S.P.); (M.C.); (C.L.-L.); (A.T.)
- Service de Dermatologie Adulte et Pédiatrique, CHU de Bordeaux, F-33000 Bordeaux, France
- Centre de Référence pour les Maladies Rares de la Peau, CHU de Bordeaux, INSERM U1312, F-33000 Bordeaux, France
| | - Alain Taieb
- BRIC, UMR 1312, Inserm, University Bordeaux, F-33076 Bordeaux, France; (P.K.-C.); (S.O.); (S.P.); (M.C.); (C.L.-L.); (A.T.)
- Service de Dermatologie Adulte et Pédiatrique, CHU de Bordeaux, F-33000 Bordeaux, France
- Centre de Référence pour les Maladies Rares de la Peau, CHU de Bordeaux, INSERM U1312, F-33000 Bordeaux, France
| | - François Moisan
- BRIC, UMR 1312, Inserm, University Bordeaux, F-33076 Bordeaux, France; (P.K.-C.); (S.O.); (S.P.); (M.C.); (C.L.-L.); (A.T.)
- Correspondence: (F.M.); (H.R.R.)
| | - Hamid Reza Rezvani
- BRIC, UMR 1312, Inserm, University Bordeaux, F-33076 Bordeaux, France; (P.K.-C.); (S.O.); (S.P.); (M.C.); (C.L.-L.); (A.T.)
- Centre de Référence pour les Maladies Rares de la Peau, CHU de Bordeaux, INSERM U1312, F-33000 Bordeaux, France
- Correspondence: (F.M.); (H.R.R.)
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10
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Yang H, Stebbeds W, Francis J, Pointon A, Obrezanova O, Beattie KA, Clements P, Harvey JS, Smith GF, Bender A. Deriving waveform parameters from calcium transients in human iPSC-derived cardiomyocytes to predict cardiac activity with machine learning. Stem Cell Reports 2022; 17:556-568. [PMID: 35148844 PMCID: PMC9039838 DOI: 10.1016/j.stemcr.2022.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 01/13/2022] [Accepted: 01/13/2022] [Indexed: 11/24/2022] Open
Abstract
Human induced pluripotent stem cell-derived cardiomyocytes have been established to detect dynamic calcium transients by fast kinetic fluorescence assays that provide insights into specific aspects of clinical cardiac activity. However, the precise derivation and use of waveform parameters to predict cardiac activity merit deeper investigation. In this study, we derived, evaluated, and applied 38 waveform parameters in a novel Python framework, including (among others) peak frequency, peak amplitude, peak widths, and a novel parameter, shoulder-tail ratio. We then trained a random forest model to predict cardiac activity based on the 25 parameters selected by correlation analysis. The area under the curve (AUC) obtained for leave-one-compound-out cross-validation was 0.86, thereby replicating the predictions of conventional methods and outperforming fingerprint-based methods by a large margin. This work demonstrates that machine learning is able to automate the assessment of cardiovascular liability from waveform data, reducing any risk of user-to-user variability and bias. An open-source algorithm was developed to derive parameters from waveform data A machine learning model was trained to predict cardiac activity of compounds Three parameters for peak width, height, and shape were found to be most predictive The model can facilitate the assessment of cardiovascular liability
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Affiliation(s)
- Hongbin Yang
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Cambridge, UK
| | | | | | - Amy Pointon
- Functional and Mechanistic Safety, Clinical Pharmacology & Safety Sciences, BioPharmaceuticals R&D, AstraZeneca, Cambridge, UK
| | - Olga Obrezanova
- Imaging and Data Analytics, Clinical Pharmacology & Safety Sciences, BioPharmaceuticals R&D, AstraZeneca, Cambridge, UK
| | | | | | | | - Graham F Smith
- Imaging and Data Analytics, Clinical Pharmacology & Safety Sciences, BioPharmaceuticals R&D, AstraZeneca, Cambridge, UK
| | - Andreas Bender
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Cambridge, UK; Imaging and Data Analytics, Clinical Pharmacology & Safety Sciences, BioPharmaceuticals R&D, AstraZeneca, Cambridge, UK.
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11
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Yang D, Dai X, Xing Y, Tang X, Yang G, Harrison AG, Cahoon J, Li H, Lv X, Yu X, Wang P, Wang H. Intrinsic cardiac adrenergic cells contribute to LPS-induced myocardial dysfunction. Commun Biol 2022; 5:96. [PMID: 35079095 PMCID: PMC8789803 DOI: 10.1038/s42003-022-03007-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 12/23/2021] [Indexed: 02/08/2023] Open
Abstract
Intrinsic cardiac adrenergic (ICA) cells regulate both developing and adult cardiac physiological and pathological processes. However, the role of ICA cells in septic cardiomyopathy is unknown. Here we show that norepinephrine (NE) secretion from ICA cells is increased through activation of Toll-like receptor 4 (TLR4) to aggravate myocardial TNF-α production and dysfunction by lipopolysaccharide (LPS). In ICA cells, LPS activated TLR4-MyD88/TRIF-AP-1 signaling that promoted NE biosynthesis through expression of tyrosine hydroxylase, but did not trigger TNF-α production due to impairment of p65 translocation. In a co-culture consisting of LPS-treated ICA cells and cardiomyocytes, the upregulation and secretion of NE from ICA cells activated cardiomyocyte β1-adrenergic receptor driving Ca2+/calmodulin-dependent protein kinase II (CaMKII) to crosstalk with NF-κB and mitogen-activated protein kinase pathways. Importantly, blockade of ICA cell-derived NE prevented LPS-induced myocardial dysfunction. Our findings suggest that ICA cells may be a potential therapeutic target for septic cardiomyopathy.
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Affiliation(s)
- Duomeng Yang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Xiaomeng Dai
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Yun Xing
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Xiangxu Tang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Guang Yang
- Department of Pathogen biology, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Andrew G Harrison
- Department of Immunology, University of Connecticut Health Center, 263 Farmington Ave., Farmington, CT, 06030, USA
| | - Jason Cahoon
- Department of Immunology, University of Connecticut Health Center, 263 Farmington Ave., Farmington, CT, 06030, USA
| | - Hongmei Li
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Xiuxiu Lv
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Xiaohui Yu
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Penghua Wang
- Department of Immunology, University of Connecticut Health Center, 263 Farmington Ave., Farmington, CT, 06030, USA
| | - Huadong Wang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China.
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12
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Giurdanella G, Longo A, Distefano A, Olivieri M, Cristaldi M, Cosentino A, Agafonova A, Caporarello N, Lupo G, Anfuso CD. The Anti-Inflammatory Effect of the β1-Adrenergic Receptor Antagonist Metoprolol on High Glucose Treated Human Microvascular Retinal Endothelial Cells. Cells 2021; 11:cells11010051. [PMID: 35011613 PMCID: PMC8750370 DOI: 10.3390/cells11010051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/16/2021] [Accepted: 12/21/2021] [Indexed: 12/11/2022] Open
Abstract
Hyperglycemia-induced impairment of the blood-retinal barrier represents the main pathological event in diabetic retinopathy that is elicited by a reduced cellular response to an accumulation of reactive oxygen species (ROS) and increased inflammation. The purpose of the study was to evaluate whether the selective β1-adrenoreceptor (β1-AR) antagonist metoprolol could modulate the inflammatory response to hyperglycemic conditions. For this purpose, human retinal endothelial cells (HREC) were treated with normal (5 mM) or high glucose (25 mM, HG) in the presence of metoprolol (10 μM), epinephrine (1 μM), or both compounds. Metoprolol prevented both the HG-induced reduction of cell viability (MTT assays) and the modulation of the angiogenic potential of HREC (tube formation assays) reducing the TNF-α, IL-1β, and VEGF mRNA levels (qRT-PCR). Moreover, metoprolol prevented the increase in phospho-ERK1/2, phospho-cPLA2, COX2, and protein levels (Western blot) as well as counteracting the translocation of ERK1/2 and cPLA2 (high-content screening). Metoprolol reduced ROS accumulation in HG-stimulated HREC by activating the anti-oxidative cellular response mediated by the Keap1/Nrf2/HO-1 pathway. In conclusion, metoprolol exerted a dual effect on HG-stimulated HREC, decreasing the activation of the pro-inflammatory ERK1/2/cPLA2/COX2 axis, and counteracting ROS accumulation by activating the Keap1/Nrf2/HO-1 pathway.
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Affiliation(s)
- Giovanni Giurdanella
- Biochemistry Section, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy; (G.G.); (A.L.); (A.D.); (A.C.); (A.A.); (C.D.A.)
| | - Anna Longo
- Biochemistry Section, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy; (G.G.); (A.L.); (A.D.); (A.C.); (A.A.); (C.D.A.)
| | - Alfio Distefano
- Biochemistry Section, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy; (G.G.); (A.L.); (A.D.); (A.C.); (A.A.); (C.D.A.)
| | - Melania Olivieri
- U.O. Clinical Pathology, Department of Hematology, AUSL Romagna, 47522 Cesena, Italy;
| | | | - Alessia Cosentino
- Biochemistry Section, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy; (G.G.); (A.L.); (A.D.); (A.C.); (A.A.); (C.D.A.)
| | - Aleksandra Agafonova
- Biochemistry Section, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy; (G.G.); (A.L.); (A.D.); (A.C.); (A.A.); (C.D.A.)
| | - Nunzia Caporarello
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA;
| | - Gabriella Lupo
- Biochemistry Section, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy; (G.G.); (A.L.); (A.D.); (A.C.); (A.A.); (C.D.A.)
- Correspondence:
| | - Carmelina Daniela Anfuso
- Biochemistry Section, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy; (G.G.); (A.L.); (A.D.); (A.C.); (A.A.); (C.D.A.)
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13
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Wang JS, Tsai PH, Tseng KF, Chen FY, Yang WC, Shen MY. Sesamol Ameliorates Renal Injury-Mediated Atherosclerosis via Inhibition of Oxidative Stress/IKKα/p53. Antioxidants (Basel) 2021; 10:antiox10101519. [PMID: 34679653 PMCID: PMC8532890 DOI: 10.3390/antiox10101519] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/10/2021] [Accepted: 09/22/2021] [Indexed: 12/11/2022] Open
Abstract
Patients with chronic kidney disease (CKD) are at an increased risk of premature death due to the development of cardiovascular disease (CVD) owing to atherosclerosis-mediated cardiovascular events. However, the mechanisms linking CKD and CVD are clear, and the current treatments for high-risk groups are limited. In this study, we aimed to examine the effects of sesamol, a natural compound extracted from sesame oil, on the development of atherosclerosis in a rodent CKD model, and reactive oxygen species-induced oxidative damage in an endothelial cell model. ApoE–/– mice were subjected to 5/6 nephrectomy (5/6 Nx) and administered sesamol for 8 weeks. Compared with the sham group, the 5/6 Nx ApoE–/– mice showed a significant increase in malondialdehyde levels and Oil Red O staining patterns, which significantly decreased following sesamol administration. Sesamol suppressed H2O2-induced expression of phospho-IKKα, p53, and caspase-3. Our results highlight the protective role of sesamol in renal injury-associated atherosclerosis and the pathological importance of oxidative stress burden in CKD–CVD interaction.
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Affiliation(s)
- Jie-Sian Wang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (J.-S.W.); (P.-H.T.); (F.-Y.C.)
- Division of Nephrology, Department of Internal Medicine, China Medical University Hospital, Taichung 40402, Taiwan
| | - Ping-Hsuan Tsai
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (J.-S.W.); (P.-H.T.); (F.-Y.C.)
| | - Kuo-Feng Tseng
- Department of Biological Science and Technology, China Medical University, Taichung 40402, Taiwan;
| | - Fang-Yu Chen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (J.-S.W.); (P.-H.T.); (F.-Y.C.)
| | - Wen-Chin Yang
- Agricultural Biotechnology Research Center, Academia Sinica, 128, Sec. 2, Academia Rd., Nankang, Taipei 115, Taiwan;
| | - Ming-Yi Shen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (J.-S.W.); (P.-H.T.); (F.-Y.C.)
- Department of Medical Research, China Medical University Hospital, Taichung 40402, Taiwan
- Department of Nursing, Asia University, Taichung 41354, Taiwan
- Correspondence: or ; Tel.: +886-4-2205-3366 (ext. 5809)
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14
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Cañes L, Alonso J, Ballester-Servera C, Varona S, Escudero JR, Andrés V, Rodríguez C, Martínez-González J. Targeting Tyrosine Hydroxylase for Abdominal Aortic Aneurysm: Impact on Inflammation, Oxidative Stress, and Vascular Remodeling. Hypertension 2021; 78:681-692. [PMID: 34304581 DOI: 10.1161/hypertensionaha.121.17517] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Laia Cañes
- Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Barcelona, Spain (L.C., J.A., C.B.-S., S.V., J.M.-G.).,CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain (L.C., J.A., S.V., J.R.E., V.A., C.R., J.M.-G.).,Instituto de Investigación Biomédica Sant Pau, Barcelona, Spain (L.C., J.A., C.B.-S., S.V., C.R., J.M.-G.)
| | - Judith Alonso
- Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Barcelona, Spain (L.C., J.A., C.B.-S., S.V., J.M.-G.).,CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain (L.C., J.A., S.V., J.R.E., V.A., C.R., J.M.-G.).,Instituto de Investigación Biomédica Sant Pau, Barcelona, Spain (L.C., J.A., C.B.-S., S.V., C.R., J.M.-G.)
| | - Carme Ballester-Servera
- Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Barcelona, Spain (L.C., J.A., C.B.-S., S.V., J.M.-G.).,CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain (L.C., J.A., S.V., J.R.E., V.A., C.R., J.M.-G.).,Instituto de Investigación Biomédica Sant Pau, Barcelona, Spain (L.C., J.A., C.B.-S., S.V., C.R., J.M.-G.)
| | - Saray Varona
- Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Barcelona, Spain (L.C., J.A., C.B.-S., S.V., J.M.-G.).,CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain (L.C., J.A., S.V., J.R.E., V.A., C.R., J.M.-G.).,Instituto de Investigación Biomédica Sant Pau, Barcelona, Spain (L.C., J.A., C.B.-S., S.V., C.R., J.M.-G.)
| | - José R Escudero
- Servicios Mancomunados de Angiología, Cirugía Vascular y Endovascular, Hospitales de la Santa Creu i Sant Pau/Dos de Mayo, Barcelona, Spain (J.R.E.)
| | - Vicente Andrés
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain (V.A.)
| | - Cristina Rodríguez
- CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain (L.C., J.A., S.V., J.R.E., V.A., C.R., J.M.-G.).,Instituto de Investigación Biomédica Sant Pau, Barcelona, Spain (L.C., J.A., C.B.-S., S.V., C.R., J.M.-G.).,Institut de Recerca Hospital de la Santa Creu i Sant Pau (IRHSCSP), Barcelona, Spain (C.R.)
| | - José Martínez-González
- Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Barcelona, Spain (L.C., J.A., C.B.-S., S.V., J.M.-G.).,CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain (L.C., J.A., S.V., J.R.E., V.A., C.R., J.M.-G.).,Instituto de Investigación Biomédica Sant Pau, Barcelona, Spain (L.C., J.A., C.B.-S., S.V., C.R., J.M.-G.)
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15
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Thomson K, Morgan I, Kelly T, Karouta C, Ashby R. Coadministration With Carbidopa Enhances the Antimyopic Effects of Levodopa in Chickens. Invest Ophthalmol Vis Sci 2021; 62:25. [PMID: 33877264 PMCID: PMC8083087 DOI: 10.1167/iovs.62.4.25] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Purpose Topical application of levodopa inhibits the development of form-deprivation myopia (FDM) and lens-induced myopia (LIM) in chicks. Here we examine whether coadministration with carbidopa enhances this protection and compare the effectiveness of topical versus systemic administration. We also investigate the degree to which topical and systemic administration of these compounds alters retinal dopamine release and examine whether this is the mechanism by which they inhibit experimental myopia. Methods Levodopa and levodopa:carbidopa (at a 4:1 ratio) were administered as twice-daily eye drops or once-daily intraperitoneal injections to chicks developing FDM or LIM over an ascending dose range. Axial length and refraction were measured following 4 days of treatment. Dopamine levels in the vitreous and blood were analyzed using liquid chromatography-mass spectrometry following topical or systemic administration of levodopa or levodopa:carbidopa. Finally, chicks receiving topical or systemic levodopa or levodopa:carbidopa were cotreated with the dopamine antagonist spiperone. Results Levodopa:carbidopa inhibited the development of FDM and LIM to a greater extent than levodopa alone (P < 0.05). Topical application was more effective than systemic administration (P < 0.001). Vitreal dopamine levels were increased to the greatest extent by topical application of levodopa:carbidopa (P < 0.001). Systemic but not topical administration significantly increased dopamine levels within the blood (P < 0.01). Cotreatment with spiperone inhibited the antimyopic effects (P < 0.05) of levodopa and levodopa:carbidopa. Conclusions The presence of carbidopa increases the bioavailability of levodopa within the eye, enhancing its antimyopic effects, with topical application showing the greatest efficacy. Thus levodopa:carbidopa may be a promising treatment for controlling the progression of human myopia.
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Affiliation(s)
- Kate Thomson
- Centre for Research in Therapeutic Solutions, Faculty of Science and Technology, University of Canberra, Canberra, Australia
| | - Ian Morgan
- Research School of Biology, Australian National University, Canberra, Australia
| | - Tamsin Kelly
- National Centre for Forensic Studies, Faculty of Science and Technology, University of Canberra, Canberra, Australia
| | - Cindy Karouta
- Centre for Research in Therapeutic Solutions, Faculty of Science and Technology, University of Canberra, Canberra, Australia
| | - Regan Ashby
- Centre for Research in Therapeutic Solutions, Faculty of Science and Technology, University of Canberra, Canberra, Australia.,Research School of Biology, Australian National University, Canberra, Australia
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16
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Lymperopoulos A, Cora N, Maning J, Brill AR, Sizova A. Signaling and function of cardiac autonomic nervous system receptors: Insights from the GPCR signalling universe. FEBS J 2021; 288:2645-2659. [DOI: 10.1111/febs.15771] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/02/2021] [Accepted: 02/16/2021] [Indexed: 12/16/2022]
Affiliation(s)
- Anastasios Lymperopoulos
- Laboratory for the Study of Neurohormonal Control of the Circulation Department of Pharmaceutical Sciences Nova Southeastern University Fort Lauderdale FL USA
| | - Natalie Cora
- Laboratory for the Study of Neurohormonal Control of the Circulation Department of Pharmaceutical Sciences Nova Southeastern University Fort Lauderdale FL USA
| | - Jennifer Maning
- Laboratory for the Study of Neurohormonal Control of the Circulation Department of Pharmaceutical Sciences Nova Southeastern University Fort Lauderdale FL USA
| | - Ava R. Brill
- Laboratory for the Study of Neurohormonal Control of the Circulation Department of Pharmaceutical Sciences Nova Southeastern University Fort Lauderdale FL USA
| | - Anastasiya Sizova
- Laboratory for the Study of Neurohormonal Control of the Circulation Department of Pharmaceutical Sciences Nova Southeastern University Fort Lauderdale FL USA
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17
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Leslie E, Lopez V, Anti NAO, Alvarez R, Kafeero I, Welsh DG, Romero M, Kaushal S, Johnson CM, Bosviel R, Blaženović I, Song R, Brito A, Frano MRL, Zhang L, Newman JW, Fiehn O, Wilson SM. Gestational long-term hypoxia induces metabolomic reprogramming and phenotypic transformations in fetal sheep pulmonary arteries. Am J Physiol Lung Cell Mol Physiol 2021; 320:L770-L784. [PMID: 33624555 DOI: 10.1152/ajplung.00469.2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Gestational long-term hypoxia increases the risk of myriad diseases in infants including persistent pulmonary hypertension. Similar to humans, fetal lamb lung development is susceptible to long-term intrauterine hypoxia, with structural and functional changes associated with the development of pulmonary hypertension including pulmonary arterial medial wall thickening and dysregulation of arterial reactivity, which culminates in decreased right ventricular output. To further explore the mechanisms associated with hypoxia-induced aberrations in the fetal sheep lung, we examined the premise that metabolomic changes and functional phenotypic transformations occur due to intrauterine, long-term hypoxia. To address this, we performed electron microscopy, Western immunoblotting, calcium imaging, and metabolomic analyses on pulmonary arteries isolated from near-term fetal lambs that had been exposed to low- or high-altitude (3,801 m) hypoxia for the latter 110+ days of gestation. Our results demonstrate that the sarcoplasmic reticulum was swollen with high luminal width and distances to the plasma membrane in the hypoxic group. Hypoxic animals were presented with higher endoplasmic reticulum stress and suppressed calcium storage. Metabolically, hypoxia was associated with lower levels of multiple omega-3 polyunsaturated fatty acids and derived lipid mediators (e.g., eicosapentaenoic acid, docosahexaenoic acid, α-linolenic acid, 5-hydroxyeicosapentaenoic acid (5-HEPE), 12-HEPE, 15-HEPE, prostaglandin E3, and 19(20)-epoxy docosapentaenoic acid) and higher levels of some omega-6 metabolites (P < 0.02) including 15-keto prostaglandin E2 and linoleoylglycerol. Collectively, the results reveal broad evidence for long-term hypoxia-induced metabolic reprogramming and phenotypic transformations in the pulmonary arteries of fetal sheep, conditions that likely contribute to the development of persistent pulmonary hypertension.
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Affiliation(s)
- Eric Leslie
- Department of Health, Exercise, and Sport Sciences, University of New Mexico, Albuquerque, New Mexico
| | - Vanessa Lopez
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Nana A O Anti
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Rafael Alvarez
- Center for Health Disparities and Molecular Mechanisms, Loma Linda University School of Medicine, Loma Linda, California
| | - Isaac Kafeero
- Center for Health Disparities and Molecular Mechanisms, Loma Linda University School of Medicine, Loma Linda, California
| | - Donald G Welsh
- Robarts Research Institute, Western University, London, Ontario, Canada
| | - Monica Romero
- Advanced Imaging and Microscopy Core, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Shawn Kaushal
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Catherine M Johnson
- Department of Food Science and Nutrition, California Polytechnic State University, San Luis Obispo, California
| | - Remy Bosviel
- NIH West Coast Metabolomics Center, Genome Center, University of California, Davis, California
| | - Ivana Blaženović
- NIH West Coast Metabolomics Center, Genome Center, University of California, Davis, California
| | - Rui Song
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Alex Brito
- Laboratory of Pharmacokinetics and Metabolomic Analysis, Institute of Translational Medicine and Biotechnology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.,World-Class Research Center "Digital biodesign and personalized healthcare," I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Michael R La Frano
- Department of Food Science and Nutrition, California Polytechnic State University, San Luis Obispo, California.,Center for Health Research, California Polytechnic State University, San Luis Obispo, California.,Cal Poly Metabolomics Service Center, California Polytechnic State University, San Luis Obispo, California
| | - Lubo Zhang
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - John W Newman
- NIH West Coast Metabolomics Center, Genome Center, University of California, Davis, California.,Department of Nutrition, University of California, Davis, California.,USDA-ARS Western Human Nutrition Research Center, Davis, California
| | - Oliver Fiehn
- NIH West Coast Metabolomics Center, Genome Center, University of California, Davis, California.,West Coast Metabolomics Center, University of California, Davis, California
| | - Sean M Wilson
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California.,Advanced Imaging and Microscopy Core, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
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18
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Gupta A, Rarick KR, Ramchandran R. Established, New and Emerging Concepts in Brain Vascular Development. Front Physiol 2021; 12:636736. [PMID: 33643074 PMCID: PMC7907611 DOI: 10.3389/fphys.2021.636736] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/15/2021] [Indexed: 12/20/2022] Open
Abstract
In this review, we discuss the state of our knowledge as it relates to embryonic brain vascular patterning in model systems zebrafish and mouse. We focus on the origins of endothelial cell and the distinguishing features of brain endothelial cells compared to non-brain endothelial cells, which is revealed by single cell RNA-sequencing methodologies. We also discuss the cross talk between brain endothelial cells and neural stem cells, and their effect on each other. In terms of mechanisms, we focus exclusively on Wnt signaling and the recent developments associated with this signaling network in brain vascular patterning, and the benefits and challenges associated with strategies for targeting the brain vasculature. We end the review with a discussion on the emerging areas of meningeal lymphatics, endothelial cilia biology and novel cerebrovascular structures identified in vertebrates.
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Affiliation(s)
- Ankan Gupta
- Department of Pediatrics, Division of Neonatology, Developmental Vascular Biology Program, Children’s Research Institute (CRI), Medical College of Wisconsin, Milwaukee, WI, United States
| | - Kevin R. Rarick
- Department of Pediatrics, Division of Critical Care, Children’s Research Institute (CRI), Medical College of Wisconsin, Milwaukee, WI, United States
| | - Ramani Ramchandran
- Department of Pediatrics, Division of Neonatology, Developmental Vascular Biology Program, Children’s Research Institute (CRI), Medical College of Wisconsin, Milwaukee, WI, United States
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19
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Hu Q, Guo Y, Zhang T, Feng J, Wang J, Dong X, Chen Y, Nie R, Feng Z, Huang Y, Deng M, Ke X. Importance of β 2AR elevation for re-endothelialization capacity mediated by late endothelial progenitor cells in hypertensive patients. Am J Physiol Heart Circ Physiol 2021; 320:H867-H880. [PMID: 33356961 DOI: 10.1152/ajpheart.00596.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 12/04/2020] [Indexed: 11/22/2022]
Abstract
Dysfunction of late endothelial progenitor cells (EPCs) has been suggested to be associated with hypertension. β2-Adrenergic receptor (β2AR) is a novel and key target for EPC homing. Here, we proposed that attenuated β2AR signaling contributes to EPCs dysfunction, whereas enhanced β2AR signaling restores EPCs' functions in hypertension. EPCs derived from hypertensive patients exhibited reduced cell number, impaired in vitro migratory and adhesion abilities, and impaired re-endothelialization after transplantation in nude mice with carotid artery injury. β2AR expression of EPCs from hypertensive patients was markedly downregulated, whereas the phosphorylation of the p38 mitogen-activated protein kinase (p38-MAPK) was elevated. The cleaved caspase-3 levels were elevated in EPCs. The overexpression of β2AR in EPCs from hypertensive patients inhibited p38-MAPK signaling, whereas it enhanced in vitro EPC proliferation, migration, and adhesion and in vivo re-endothelialization. The β2AR-mediated effects were attenuated by treating the EPCs with a neutralizing monoclonal antibody against β2AR, which could be partially antagonized by the p38-MAPK inhibitor SB203580. Moreover, shear stress stimulation, a classic nonpharmacological intervention, increased the phosphorylation levels of β2AR and enhanced the in vitro and in vivo functions of EPCs from hypertensive patients. Collectively, the current investigation demonstrated that impaired β2AR/p38-MAPK/caspase-3 signaling at least partially reduced the re-endothelialization capacity of EPCs from hypertensive patients. Restoration of β2AR expression and shear stress treatment could improve their endothelial repair capacity by regulating the p38-MAPK/caspase-3 signaling pathway. The clinical significance of β2AR in endothelium repair still requires further investigation.NEW & NOTEWORTHY Impaired β2-adrenergic receptor (β2AR) expression with an elevation of p38-MAPK/caspase-3 signaling at least partially contributes to the decline of re-endothelialization capacity of late endothelial progenitor cells (EPCs) from hypertensive patients. β2AR gene transfer and shear stress treatment improve the late EPC-mediated enhancement of the re-endothelialization capacity in hypertensive patients through activating β2AR/p38-MAPK/caspase-3 signaling. The present study is the first to reveal the potential molecular mechanism of the impaired endothelium-reparative capacity of late EPCs in hypertension after vascular injury and strongly suggests that β2AR is a novel and crucial therapeutic target for increasing EPC-mediated re-endothelialization capacity in hypertension.
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Affiliation(s)
- Qingsong Hu
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yiqun Guo
- Department of Interventional Radiology and Vascular Anomalies, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Tao Zhang
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jianyi Feng
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jinlong Wang
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiaobian Dong
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yangxin Chen
- Department of Cardiology, Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ruqiong Nie
- Department of Cardiology, Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zongming Feng
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, (Shenzhen Sun Yat-sen Cardiovascular Hospital), Shenzhen, China
| | - Yiteng Huang
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, (Shenzhen Sun Yat-sen Cardiovascular Hospital), Shenzhen, China
| | - Ming Deng
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, (Shenzhen Sun Yat-sen Cardiovascular Hospital), Shenzhen, China
| | - Xiao Ke
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, (Shenzhen Sun Yat-sen Cardiovascular Hospital), Shenzhen, China
- Shenzhen University School of Medicine and Shenzhen University Health Science Center, Shenzhen, China
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20
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Li Z, Korhonen EA, Merlini A, Strauss J, Wihuri E, Nurmi H, Antila S, Paech J, Deutsch U, Engelhardt B, Chintharlapalli S, Koh GY, Flügel A, Alitalo K. Angiopoietin-2 blockade ameliorates autoimmune neuroinflammation by inhibiting leukocyte recruitment into the CNS. J Clin Invest 2020; 130:1977-1990. [PMID: 32149735 PMCID: PMC7108925 DOI: 10.1172/jci130308] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 01/03/2020] [Indexed: 12/12/2022] Open
Abstract
Angiopoietin-2 (Ang2), a ligand of the endothelial Tie2 tyrosine kinase, is involved in vascular inflammation and leakage in critically ill patients. However, the role of Ang2 in demyelinating central nervous system (CNS) autoimmune diseases is unknown. Here, we report that Ang2 is critically involved in the pathogenesis of experimental autoimmune encephalomyelitis (EAE), a rodent model of multiple sclerosis. Ang2 expression was induced in CNS autoimmunity, and transgenic mice overexpressing Ang2 specifically in endothelial cells (ECs) developed a significantly more severe EAE. In contrast, treatment with Ang2-blocking Abs ameliorated neuroinflammation and decreased spinal cord demyelination and leukocyte infiltration into the CNS. Similarly, Ang2-binding and Tie2-activating Ab attenuated the development of CNS autoimmune disease. Ang2 blockade inhibited expression of EC adhesion molecules, improved blood-brain barrier integrity, and decreased expression of genes involved in antigen presentation and proinflammatory responses of microglia and macrophages, which was accompanied by inhibition of α5β1 integrin activation in microglia. Taken together, our data suggest that Ang2 provides a target for increasing Tie2 activation in ECs and inhibiting proinflammatory polarization of CNS myeloid cells via α5β1 integrin in neuroinflammation. Thus, Ang2 targeting may serve as a therapeutic option for the treatment of CNS autoimmune disease.
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Affiliation(s)
- Zhilin Li
- Wihuri Research Institute and Translational Cancer Medicine Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Emilia A Korhonen
- Wihuri Research Institute and Translational Cancer Medicine Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Arianna Merlini
- Institute for Neuroimmunology and Multiple Sclerosis Research, University Medical Centre Göttingen, Göttingen, Germany
| | - Judith Strauss
- Institute for Neuroimmunology and Multiple Sclerosis Research, University Medical Centre Göttingen, Göttingen, Germany
| | - Eleonoora Wihuri
- Wihuri Research Institute and Translational Cancer Medicine Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Harri Nurmi
- Wihuri Research Institute and Translational Cancer Medicine Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Salli Antila
- Wihuri Research Institute and Translational Cancer Medicine Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Jennifer Paech
- Wihuri Research Institute and Translational Cancer Medicine Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Urban Deutsch
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | | | | | - Gou Young Koh
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Alexander Flügel
- Institute for Neuroimmunology and Multiple Sclerosis Research, University Medical Centre Göttingen, Göttingen, Germany
| | - Kari Alitalo
- Wihuri Research Institute and Translational Cancer Medicine Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
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21
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Vitamin C and Cardiovascular Disease: An Update. Antioxidants (Basel) 2020; 9:antiox9121227. [PMID: 33287462 PMCID: PMC7761826 DOI: 10.3390/antiox9121227] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 02/07/2023] Open
Abstract
The potential beneficial effects of the antioxidant properties of vitamin C have been investigated in a number of pathological conditions. In this review, we assess both clinical and preclinical studies evaluating the role of vitamin C in cardiac and vascular disorders, including coronary heart disease, heart failure, hypertension, and cerebrovascular diseases. Pitfalls and controversies in investigations on vitamin C and cardiovascular disorders are also discussed.
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22
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Choi ME, Yoo H, Lee HR, Moon IJ, Lee WJ, Song Y, Chang SE. Carvedilol, an Adrenergic Blocker, Suppresses Melanin Synthesis by Inhibiting the cAMP/CREB Signaling Pathway in Human Melanocytes and Ex Vivo Human Skin Culture. Int J Mol Sci 2020; 21:ijms21228796. [PMID: 33233731 PMCID: PMC7699935 DOI: 10.3390/ijms21228796] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 12/02/2022] Open
Abstract
Catecholamines function via G protein-coupled receptors, triggering an increase in intracellular levels of 3′,5′-cyclic adenosine monophosphate (cAMP) in various cells. Catecholamine biosynthesis and the β-adrenergic receptor exist in melanocytes; thus, catecholamines may play critical roles in skin pigmentation. However, their action and mechanisms mediating melanogenesis in human skin have not yet been investigated. Therefore, we examined the potential anti-melanogenetic effect of carvedilol, a nonselective β-blocker with weak α1-blocking activities. Carvedilol reduced melanin content and cellular tyrosinase activity without compromising cellular viability in normal human melanocytes as well as in mel-Ab immortalized mouse melanocytes. Carvedilol downregulated microphthalmia-associated transcription factor (MITF), tyrosinase, tyrosinase-related protein (TRP)-1, and TRP-2. Carvedilol treatment led to the downregulation of phosphor-cAMP response element-binding protein (CREB). Moreover, the increase in cAMP levels upon treatment with forskolin reversed the anti-melanogenic action of carvedilol. In addition, carvedilol remarkably reduced the melanin index in ultraviolet-irradiated human skin cultures. Taken together, our results indicate that carvedilol effectively suppresses melanogenesis in human melanocytes and ex vivo human skin by inhibiting cAMP/protein kinase A/CREB signaling. The anti-melanogenic effects of carvedilol have potential significance for skin whitening agents.
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Affiliation(s)
- Myoung Eun Choi
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea; (M.E.C.); (H.Y.); (I.J.M.); (W.J.L.)
| | - Hanju Yoo
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea; (M.E.C.); (H.Y.); (I.J.M.); (W.J.L.)
- Bio-Medical Institute of Technology (BMIT), University of Ulsan College of Medicine, Ulsan 05505, Korea;
| | - Ha-Ri Lee
- Bio-Medical Institute of Technology (BMIT), University of Ulsan College of Medicine, Ulsan 05505, Korea;
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea
| | - Ik Joon Moon
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea; (M.E.C.); (H.Y.); (I.J.M.); (W.J.L.)
| | - Woo Jin Lee
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea; (M.E.C.); (H.Y.); (I.J.M.); (W.J.L.)
| | - Youngsup Song
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea
- Correspondence: (Y.S.); (S.E.C.); Tel.: +82-2-3010-2089 (Y.S.); +82-2-3010-3460 (S.E.C.)
| | - Sung Eun Chang
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea; (M.E.C.); (H.Y.); (I.J.M.); (W.J.L.)
- Correspondence: (Y.S.); (S.E.C.); Tel.: +82-2-3010-2089 (Y.S.); +82-2-3010-3460 (S.E.C.)
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23
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Nisimura LM, Bousquet P, Muccillo F, Tibirica E, Garzoni LR. Tyrosine hydroxylase and β2-adrenergic receptor expression in leukocytes of spontaneously hypertensive rats: putative peripheral markers of central sympathetic activity. ACTA ACUST UNITED AC 2020; 53:e9615. [PMID: 33146287 PMCID: PMC7643929 DOI: 10.1590/1414-431x20209615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 08/27/2020] [Indexed: 11/21/2022]
Abstract
The sympathetic nervous system (SNS) plays a fundamental role in the pathophysiology of cardiovascular diseases, including primary arterial hypertension. In this study, we aimed to investigate whether the expression of the rate-limiting enzyme in catecholamine synthesis, tyrosine hydroxylase (TH), and the β2-adrenergic receptor (β2-AR) in immune cells from peripheral blood, reflect central SNS activity in spontaneously hypertensive rats (SHR). TH expression in the lower brainstem and adrenal glands and β2-AR expression in the lower brainstem were analyzed by western blot analyses. In the leukocytes, TH and β2-AR expression was evaluated by flow cytometry before and after chronic treatment with the centrally-acting sympathoinhibitory drug clonidine. Western blot analyses showed increased TH and β2-AR expression in the lower brainstem and increased TH in adrenal glands from SHR compared to normotensive Wistar Kyoto rats (WKY). Lower brainstem from SHR treated with clonidine presented reduced TH and β2-AR levels, and adrenal glands had decreased TH expression compared to SHR treated with vehicle. Flow cytometry showed that the percentage of leukocytes that express β2-AR is higher in SHR than in WKY. However, the percentage of leukocytes that expressed TH was higher in WKY than in SHR. Moreover, chronic treatment with clonidine normalized the levels of TH and β2-AR in leukocytes from SHR to similar levels of those of WKY. Our study demonstrated that the percentage of leukocytes expressing TH and β2-AR was altered in arterial hypertension and can be modulated by central sympathetic inhibition with clonidine treatment.
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Affiliation(s)
- L M Nisimura
- Laboratório de Inovações em Terapias, Ensino e Bioprodutos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil.,Laboratório de Investigação Cardiovascular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
| | - P Bousquet
- Department of Pharmacology, Faculty of Medicine, University of Strasbourg, Strasbourg, France
| | - F Muccillo
- Instituto Nacional de Cardiologia, Ministério da Saúde, Rio de Janeiro, RJ, Brasil
| | - E Tibirica
- Laboratório de Investigação Cardiovascular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil.,Instituto Nacional de Cardiologia, Ministério da Saúde, Rio de Janeiro, RJ, Brasil
| | - L R Garzoni
- Laboratório de Inovações em Terapias, Ensino e Bioprodutos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
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24
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Britto-Júnior J, Antunes NJ, Campos R, Sucupira M, Mendes GD, Fernandes F, Moraes MO, Moraes MEA, De Nucci G. Determination of dopamine, noradrenaline, and adrenaline in Krebs-Henseleit solution by liquid chromatography coupled with tandem mass spectrometry and measurement of their basal release from Chelonoidis carbonaria aortae in vitro. Biomed Chromatogr 2020; 35:e4978. [PMID: 32866321 DOI: 10.1002/bmc.4978] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 08/14/2020] [Accepted: 08/27/2020] [Indexed: 01/07/2023]
Abstract
This study presented for the first time the development and validation of a sensitive method for quantification of dopamine, noradrenaline, and adrenaline in Krebs-Henseleit solution by LC-tandem mass spectrometry. Aliquots of 2.0 mL calibrators, quality controls, and samples of Krebs-Henseleit solution incubated with tortoise's aortic ring for 30 min were extracted by solid-phase extraction. Catecholamine separation was achieved on a 100 × 4.6 mm LiChrospher RP-8 column and the quantification was performed by a mass spectrometer equipped with an electrospray interface operating in positive ion mode. The run time was 4 min and the calibration curve was linear over the range of 0.1-20.0 ng/mL. The method was applied to the measurement of basal release of dopamine, noradrenaline, and adrenaline from the tortoise Chelonoidis carbonaria aortae in vitro. One aortic ring (30 mm) per tortoise (n = 5) was incubated for 30 min in a 5 mL organ bath filled with Krebs-Henseleit solution. The method demonstrated sensitivity, precision, and accuracy enough for its application in the measurement of basal release of these catecholamines from C. carbonaria aortic rings in vitro. The mean (standard deviation) concentrations of dopamine, noradrenaline, and adrenaline were 3.48 (2.55) ng/mL, 1.40 (0.57) ng/mL, and 1.87 (1.09) ng/mL, respectively.
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Affiliation(s)
- José Britto-Júnior
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Natalícia J Antunes
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Rafael Campos
- Superior Institute of Biomedical Sciences, Ceará State University (UECE), Fortaleza, CE, Brazil.,Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Mauro Sucupira
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Gustavo Duarte Mendes
- Department of Pharmacology, Faculty of Medicine, São Leopoldo Mandic, Campinas, SP, Brazil.,Department of Pharmacology, Faculty of Medicine, Metropolitan University of Santos, Santos, SP, Brazil
| | - Fernanda Fernandes
- Department of Pharmacology, Faculty of Medicine, São Leopoldo Mandic, Campinas, SP, Brazil
| | - Manoel Odorico Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Maria Elisabete A Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Gilberto De Nucci
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil.,Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil.,Department of Pharmacology, Faculty of Medicine, São Leopoldo Mandic, Campinas, SP, Brazil.,Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, Brazil
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25
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Abstract
Abstract
At the end of 2019, a new coronavirus infection occurred in the People’s Republic of China with an epicentre in the city of Wuhan. On February 11th, 2020, the World Health Organization assigned the official name of the infection caused by the new coronavirus – COVID-19. COVID-19 has affected people from all over the world given that the infection was noted in 200 countries resulting in annunciation of the pandemic situation. Human corona viruses cause mild to moderate respiratory infections. At the end of 2002, a new coronavirus appeared (SARS-CoV), the causal agent of atypical pneumonia, which caused acute respiratory distress syndrome (ARDS). The initial stage of COVID-19 infection is the penetration of SARS-CoV-2 into target cells that have angiotensin converting enzyme type II receptors. The virus enters the body through the respiratory tract and interacts primarily with toll-like receptors (TLRs). The events in SARS-Cov-2 induced infection follow the next scenario: epithelial cells via TLRs recognize and identify SARS-Cov-2, and after that the information is transmitted to the transcriptional NF-κB, which causes expression of the corresponding genes. Activated in this way, the epithelial cells begin to synthesize various biologically active molecules. The results obtained on preclinical material indicate that ROS generation increases and the antioxidant protection decreases, which plays a major role in the pathogenesis of SARS-CoV, as well as in the progression and severity of this respiratory disease.
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26
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Gambardella J, Khondkar W, Morelli MB, Wang X, Santulli G, Trimarco V. Arginine and Endothelial Function. Biomedicines 2020; 8:biomedicines8080277. [PMID: 32781796 PMCID: PMC7460461 DOI: 10.3390/biomedicines8080277] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/15/2022] Open
Abstract
Arginine (L-arginine), is an amino acid involved in a number of biological processes, including the biosynthesis of proteins, host immune response, urea cycle, and nitric oxide production. In this systematic review, we focus on the functional role of arginine in the regulation of endothelial function and vascular tone. Both clinical and preclinical studies are examined, analyzing the effects of arginine supplementation in hypertension, ischemic heart disease, aging, peripheral artery disease, and diabetes mellitus.
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Affiliation(s)
- Jessica Gambardella
- Department of Medicine (Division of Cardiology), Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine—Montefiore University Hospital, New York City, NY 10461, USA; (J.G.); (W.K.); (M.B.M.); (X.W.)
- Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism, Albert Einstein College of Medicine, New York City, NY 10461, USA
- Department of Advanced Biomedical Sciences, “Federico II” University, 80131 Naples, Italy
- International Translational Research and Medical Education (ITME), 80100 Naples, Italy
| | - Wafiq Khondkar
- Department of Medicine (Division of Cardiology), Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine—Montefiore University Hospital, New York City, NY 10461, USA; (J.G.); (W.K.); (M.B.M.); (X.W.)
| | - Marco Bruno Morelli
- Department of Medicine (Division of Cardiology), Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine—Montefiore University Hospital, New York City, NY 10461, USA; (J.G.); (W.K.); (M.B.M.); (X.W.)
- Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism, Albert Einstein College of Medicine, New York City, NY 10461, USA
| | - Xujun Wang
- Department of Medicine (Division of Cardiology), Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine—Montefiore University Hospital, New York City, NY 10461, USA; (J.G.); (W.K.); (M.B.M.); (X.W.)
| | - Gaetano Santulli
- Department of Medicine (Division of Cardiology), Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine—Montefiore University Hospital, New York City, NY 10461, USA; (J.G.); (W.K.); (M.B.M.); (X.W.)
- Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism, Albert Einstein College of Medicine, New York City, NY 10461, USA
- Department of Advanced Biomedical Sciences, “Federico II” University, 80131 Naples, Italy
- International Translational Research and Medical Education (ITME), 80100 Naples, Italy
- Correspondence:
| | - Valentina Trimarco
- Department of Neuroscience, “Federico II” University, 80131 Naples, Italy;
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27
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Britto‐Júnior J, Pinheiro DHA, Justo AFO, Figueiredo Murari GM, Campos R, Mariano FV, de Souza VB, Schenka AA, Mónica FZ, Antunes E, De Nucci G. Endothelium-derived dopamine modulates EFS-induced contractions of human umbilical vessels. Pharmacol Res Perspect 2020; 8:e00612. [PMID: 32567793 PMCID: PMC7307250 DOI: 10.1002/prp2.612] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/02/2020] [Accepted: 05/06/2020] [Indexed: 02/03/2023] Open
Abstract
Electrical field stimulation (EFS) induces contractions of both snake aorta and human umbilical cord vessels (HUCV) which were dependent on the presence of the endothelium. This study aimed to establish the nature of the mediator(s) responsible for EFS-induced contractions in HUCV. Rings with or without endothelium from human umbilical artery (HUA) or vein (HUV) were mounted in organ bath chambers containing oxygenated, heated Krebs-Henseleit's solution. Basal release of dopamine (DA), noradrenaline, and adrenaline was measured by LC-MS-MS. Cumulative concentration-response curves were performed with dopamine in the absence and in the presence of L-NAME or of dopamine antagonists. EFS studies were performed in the presence and absence of L-NAME, the α-adrenergic blockers prazosin and idazoxan, and the dopamine antagonists SCH-23390 and haloperidol. Tyrosine hydroxylase (TH) and dopa-decarboxylase (DDC) were studied by immunohistochemistry and fluorescence in situ hybridizations. Basal release of dopamine requires an intact endothelium in both HUA and HUV. TH and DDC are present only in the endothelium of both HUA and HUV as determined by immunohistochemistry. Dopamine induced contractions in HUA only in the presence of L-NAME. Dopamine-induced contractions in HUV were strongly potentiated by L-NAME. The EFS-induced contractions in both HUA and HUV were potentiated by L-NAME and inhibited by the D2-like receptor antagonist haloperidol. The α-adrenergic antagonists prazosin and idazoxan and the D1-like receptor antagonist SCH-23390 had no effect on the EFS-induced contractions of HUA and HUV. Endothelium-derived dopamine is a major modulator of HUCV reactivity in vitro.
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Affiliation(s)
- José Britto‐Júnior
- Department of PharmacologyFaculty of Medical SciencesState University of Campinas (UNICAMP)CampinasBrazil
| | - David H. A. Pinheiro
- Department of PharmacologyFaculty of Medical SciencesState University of Campinas (UNICAMP)CampinasBrazil
| | - Alberto F. O. Justo
- Department of PharmacologyFaculty of Medical SciencesState University of Campinas (UNICAMP)CampinasBrazil
| | | | - Rafael Campos
- Superior Institute of Biomedical SciencesCeará State University (UECE)FortalezaBrazil
| | - Fernanda V. Mariano
- Department of PathologyFaculty of Medical ScienceState University of Campinas (UNICAMP)CampinasBrazil
| | - Valéria B. de Souza
- Department of PharmacologyFaculty of Medical SciencesState University of Campinas (UNICAMP)CampinasBrazil
| | - André A. Schenka
- Department of PharmacologyFaculty of Medical SciencesState University of Campinas (UNICAMP)CampinasBrazil
| | - Fabiola Z. Mónica
- Department of PharmacologyFaculty of Medical SciencesState University of Campinas (UNICAMP)CampinasBrazil
| | - Edson Antunes
- Department of PharmacologyFaculty of Medical SciencesState University of Campinas (UNICAMP)CampinasBrazil
| | - Gilberto De Nucci
- Department of PharmacologyFaculty of Medical SciencesState University of Campinas (UNICAMP)CampinasBrazil
- Department of PharmacologyInstitute of Biomedical SciencesUniversity of São Paulo (USP)São PauloBrazil
- Brazil UniversityFernadopolisBrazil
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Peripheral Dopamine 2-Receptor Antagonist Reverses Hypertension in a Chronic Intermittent Hypoxia Rat Model. Int J Mol Sci 2020; 21:ijms21144893. [PMID: 32664461 PMCID: PMC7402302 DOI: 10.3390/ijms21144893] [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: 06/08/2020] [Revised: 07/06/2020] [Accepted: 07/09/2020] [Indexed: 12/16/2022] Open
Abstract
The sleep apnea-hypopnea syndrome (SAHS) involves periods of intermittent hypoxia, experimentally reproduced by exposing animal models to oscillatory PO2 patterns. In both situations, chronic intermittent hypoxia (CIH) exposure produces carotid body (CB) hyperactivation generating an increased input to the brainstem which originates sympathetic hyperactivity, followed by hypertension that is abolished by CB denervation. CB has dopamine (DA) receptors in chemoreceptor cells acting as DA-2 autoreceptors. The aim was to check if blocking DA-2 receptors could decrease the CB hypersensitivity produced by CIH, minimizing CIH-related effects. Domperidone (DOM), a selective peripheral DA-2 receptor antagonist that does not cross the blood-brain barrier, was used to examine its effect on CIH (30 days) exposed rats. Arterial pressure, CB secretory activity and whole-body plethysmography were measured. DOM, acute or chronically administered during the last 15 days of CIH, reversed the hypertension produced by CIH, an analogous effect to that obtained with CB denervation. DOM marginally decreased blood pressure in control animals and did not affect hypoxic ventilatory response in control or CIH animals. No adverse effects were observed. DOM, used as gastrokinetic and antiemetic drug, could be a therapeutic opportunity for hypertension in SAHS patients’ resistant to standard treatments.
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Campos R, Jacintho FF, Britto-Júnior J, Mónica FZ, Justo AFO, Pupo AS, Moreno RA, de Souza VB, Schenka AA, Antunes E, De Nucci G. Endothelium modulates electrical field stimulation-induced contractions of Chelonoidis carbonaria aortic rings. Comp Biochem Physiol C Toxicol Pharmacol 2020; 233:108763. [PMID: 32289528 DOI: 10.1016/j.cbpc.2020.108763] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/08/2020] [Accepted: 04/04/2020] [Indexed: 12/26/2022]
Abstract
The role of endothelium in the electrical-field stimulation (EFS)-induced contractions of Chelonoidis carbonaria aorta was investigated. Contractions were evaluated in the presence and absence of L-NAME (100 μM), tetrodotoxin (1 μM), phentolamine (10 and 100 μM), phenoxybenzamine (1 and 10 μM), prazosin (100 μM), idazoxan (100 μM), atropine (10 μM), D-tubocurarine (10 μM) or indomethacin (10 μM). EFS-induced contraction was also carried out in endothelium-denuded rings. EFS-induced contraction was investigated by the sandwich assay. Concentration curves to endothelin-1 (0.1-100 nM) and U46619 (0.001-100 μM) were also constructed to calculate both Emax and EC50. EFS at 16 Hz contracted Chelonoidis aorta, which was almost abolished by the endothelium removal. The addition of L-NAME increased the EFS response (2.0 ± 0.4 and 8.3 ± 1.9 mN). In L-NAME treated aortic rings, tetrodotoxin did not change the EFS-response (5.1 ± 1.8 and 4.9 ± 1.7 mN). Indomethacin, atropine and d-tubucurarine also did not affect the EFS-response. Phentolamine at 10 μM did not change the EFS-induced contraction; however, at 100 μM, reduced it (3.9 ± 1 and 1.9 ± 0.3 mN). Prazosin and idazoxan did not change EFS-induced contractions. Phenoxybenzamine at 1 μM reduced by 76% (9.6 ± 3.4 and 2.3 ± 0.8 mN) and at 10 μM by 90% the EFS response. Immunohistochemistry identified tyrosine hydroxylase in the endothelium and brain, whereas S100 protein was found only in brain. In conclusion, endothelium modulates EFS-induced contractions in Chelonoidis aortic rings and this modulation may be due to endothelium-derived catecholamines, possibly dopamine.
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Affiliation(s)
- Rafael Campos
- Superior Institute of Biomedical Sciences, Ceará State University (UECE), Fortaleza, Brazil; Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil.
| | - Felipe Fernandes Jacintho
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - José Britto-Júnior
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Fabíola Z Mónica
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | | | - André Sampaio Pupo
- Department of Pharmacology, Institute of Biosciences of Botucatu, UNESP - São Paulo State University, Botucatu, Brazil
| | - Ronilson Agnaldo Moreno
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Valéria Barbosa de Souza
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - André Almeida Schenka
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Edson Antunes
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Gilberto De Nucci
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil; Department of Pharmacology, Institute of Biomedical Sciences, USP - University of São Paulo, São Paulo, Brazil
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Sardu C, Gambardella J, Morelli MB, Wang X, Marfella R, Santulli G. Hypertension, Thrombosis, Kidney Failure, and Diabetes: Is COVID-19 an Endothelial Disease? A Comprehensive Evaluation of Clinical and Basic Evidence. J Clin Med 2020; 9:E1417. [PMID: 32403217 PMCID: PMC7290769 DOI: 10.3390/jcm9051417] [Citation(s) in RCA: 342] [Impact Index Per Article: 85.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/02/2020] [Accepted: 05/04/2020] [Indexed: 02/06/2023] Open
Abstract
The symptoms most commonly reported by patients affected by coronavirus disease (COVID-19) include cough, fever, and shortness of breath. However, other major events usually observed in COVID-19 patients (e.g., high blood pressure, arterial and venous thromboembolism, kidney disease, neurologic disorders, and diabetes mellitus) indicate that the virus is targeting the endothelium, one of the largest organs in the human body. Herein, we report a systematic and comprehensive evaluation of both clinical and preclinical evidence supporting the hypothesis that the endothelium is a key target organ in COVID-19, providing a mechanistic rationale behind its systemic manifestations.
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Affiliation(s)
- Celestino Sardu
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, 80100 Naples, Italy; (C.S.); (R.M.)
- Department of Medical Sciences, International University of Health and Medical Sciences “Saint Camillus”, 00131 Rome, Italy
| | - Jessica Gambardella
- Department of Advanced Biomedical Sciences, International Translational Research and Medical Education Academic Research Unit (ITME), “Federico II” University, 80131 Naples, Italy;
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine, Wilf Family Cardiovascular Research Institute, New York, NY 10461, USA; (M.B.M.); (X.W.)
| | - Marco Bruno Morelli
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine, Wilf Family Cardiovascular Research Institute, New York, NY 10461, USA; (M.B.M.); (X.W.)
- Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism (FIDAM), Montefiore University Hospital, New York, NY 10461, USA
| | - Xujun Wang
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine, Wilf Family Cardiovascular Research Institute, New York, NY 10461, USA; (M.B.M.); (X.W.)
| | - Raffaele Marfella
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, 80100 Naples, Italy; (C.S.); (R.M.)
| | - Gaetano Santulli
- Department of Advanced Biomedical Sciences, International Translational Research and Medical Education Academic Research Unit (ITME), “Federico II” University, 80131 Naples, Italy;
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine, Wilf Family Cardiovascular Research Institute, New York, NY 10461, USA; (M.B.M.); (X.W.)
- Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism (FIDAM), Montefiore University Hospital, New York, NY 10461, USA
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31
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Britto-Júnior J, Jacintho FF, Figueiredo Murari GM, Campos R, Moreno RA, Antunes E, Mónica FZ, De Nucci G. Electrical field stimulation induces endothelium-dependent contraction of human umbilical cord vessels. Life Sci 2020; 243:117257. [PMID: 31917992 DOI: 10.1016/j.lfs.2020.117257] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/22/2019] [Accepted: 12/31/2019] [Indexed: 11/24/2022]
Abstract
Electrical field stimulation (EFS) has been used for decades in classical pharmacological preparations in order to characterize the mediators released by neural endings involved in smooth muscle contraction or relaxation. Since most of the human umbilical cord has no innervation, EFS has never been used in this preparation. This study aimed to investigate the effect of EFS on vascular responsiveness from human umbilical cord. Segments of the human umbilical cord were obtained from normotensive parturients and the human umbilical artery (HUA) and the human umbilical vein (HUV) were isolated and mounted in organ bath chambers. Electrical field stimulation-induced contractions in both HUA (2.35 ± 1.31 mN and 3.77 ± 2.31 mN for 8 Hz and 16 Hz respectively, n = 24) and HUV (3.81 ± 2.54 mN and 6.26 ± 4.51 mN for 8 Hz and 16 Hz respectively, n = 25). The addition of tetrodotoxin (1 μM) did not alter the EFS-induced contractions in both tissues (n = 5). Pre-incubation with atropine (10 and 100 μM), glibenclamide (10 μM) and indomethacin (10 μM) did not affect the EFS-induced contractions in both tissues. The contractions of both vessels were significantly reduced by pre-incubation of the tissues with phentolamine (10 and 100 μM). The endothelium removal almost abolished the EFS- induced contractions in both vessels (n = 5). In sandwich preparation, donor tissue (with endothelium) released a factor (s) that promoted contraction of the recipient tissue (endothelium removal) in both HUA and HUV (n = 5, respectively). Our findings indicate a potential role of endothelium-derived catecholamines in modulating HUA and HUV reactivities.
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Affiliation(s)
- José Britto-Júnior
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (Unicamp), Campinas, Brazil.
| | - Felipe Fernandes Jacintho
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (Unicamp), Campinas, Brazil
| | | | - Rafael Campos
- Superior Institute of Biomedical Sciences, Ceará State University (UECE), Fortaleza, Brazil
| | - Ronilson Agnaldo Moreno
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (Unicamp), Campinas, Brazil
| | - Edson Antunes
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (Unicamp), Campinas, Brazil
| | - Fabiola Z Mónica
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (Unicamp), Campinas, Brazil
| | - Gilberto De Nucci
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (Unicamp), Campinas, Brazil; Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, Brazil; Metropolitan University of Santos (UNIMES), Santos, Brazil
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32
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β2AR-dependent signaling contributes to in-vivo reendothelialization capacity of endothelial progenitor cells by shear stress. J Hypertens 2020; 38:82-94. [DOI: 10.1097/hjh.0000000000002203] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dissection of heterocellular cross-talk in vascularized cardiac tissue mimetics. J Mol Cell Cardiol 2019; 138:269-282. [PMID: 31866374 DOI: 10.1016/j.yjmcc.2019.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 12/07/2019] [Accepted: 12/10/2019] [Indexed: 02/07/2023]
Abstract
Cellular specialization and interaction with other cell types in cardiac tissue is essential for the coordinated function of cell populations in the heart. The complex interplay between cardiomyocytes, endothelial cells and fibroblasts is necessary for adaptation but can also lead to pathophysiological remodeling. To understand this complex interplay, we developed 3D vascularized cardiac tissue mimetics (CTM) to study heterocellular cross-talk in hypertrophic, hypoxic and fibrogenic environments. This 3D platform responds to physiologic and pathologic stressors and mimics the microenvironment of diseased tissue. In combination with endothelial cell fluorescence reporters, these cardiac tissue mimetics can be used to precisely visualize and quantify cellular and functional responses upon stress stimulation. Utilizing this platform, we demonstrate that stimulation of α/β-adrenergic receptors with phenylephrine (PE) promotes cardiomyocyte hypertrophy, metabolic maturation and vascularization of CTMs. Increased vascularization was promoted by conditioned medium of PE-stimulated cardiomyocytes and blocked by inhibiting VEGF or upon β-adrenergic receptor antagonist treatment, demonstrating cardiomyocyte-endothelial cross-talk. Pathophysiological stressors such as severe hypoxia reduced angiogenic sprouting and increased cell death, while TGF β2 stimulation increased collagen deposition concomitant to endothelial-to-mesenchymal transition. In sum, we have developed a cardiac 3D culture system that reflects native cardiac tissue function, metabolism and morphology - and for the first time enables the tracking and analysis of cardiac vascularization dynamics in physiology and pathology.
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34
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Cabrera CP, Ng FL, Nicholls HL, Gupta A, Barnes MR, Munroe PB, Caulfield MJ. Over 1000 genetic loci influencing blood pressure with multiple systems and tissues implicated. Hum Mol Genet 2019; 28:R151-R161. [PMID: 31411675 PMCID: PMC6872427 DOI: 10.1093/hmg/ddz197] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/26/2019] [Accepted: 08/05/2019] [Indexed: 12/12/2022] Open
Abstract
High blood pressure (BP) remains the major heritable and modifiable risk factor for cardiovascular disease. Persistent high BP, or hypertension, is a complex trait with both genetic and environmental interactions. Despite swift advances in genomics, translating new discoveries to further our understanding of the underlying molecular mechanisms remains a challenge. More than 500 loci implicated in the regulation of BP have been revealed by genome-wide association studies (GWAS) in 2018 alone, taking the total number of BP genetic loci to over 1000. Even with the large number of loci now associated to BP, the genetic variance explained by all loci together remains low (~5.7%). These genetic associations have elucidated mechanisms and pathways regulating BP, highlighting potential new therapeutic and drug repurposing targets. A large proportion of the BP loci were discovered and reported simultaneously by multiple research groups, creating a knowledge gap, where the reported loci to date have not been investigated in a harmonious way. Here, we review the BP-associated genetic variants reported across GWAS studies and investigate their potential impact on the biological systems using in silico enrichment analyses for pathways, tissues, gene ontology and genetic pleiotropy.
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Affiliation(s)
- Claudia P Cabrera
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Centre, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- Centre for Translational Bioinformatics, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Fu Liang Ng
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Centre, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Hannah L Nicholls
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- Centre for Translational Bioinformatics, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Ajay Gupta
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Centre, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Michael R Barnes
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Centre, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- Centre for Translational Bioinformatics, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Patricia B Munroe
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Centre, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Mark J Caulfield
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- NIHR Barts Cardiovascular Biomedical Research Centre, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
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Silva IVG, de Figueiredo RC, Rios DRA. Effect of Different Classes of Antihypertensive Drugs on Endothelial Function and Inflammation. Int J Mol Sci 2019; 20:ijms20143458. [PMID: 31337127 PMCID: PMC6678872 DOI: 10.3390/ijms20143458] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/05/2019] [Accepted: 06/06/2019] [Indexed: 12/12/2022] Open
Abstract
Hypertension is characterized by structural and functional changes in blood vessels that travel with increased arterial stiffness, vascular inflammation, and endothelial dysfunction. Some antihypertensive drugs have been shown to improve endothelial function and reduce levels of inflammatory markers regardless of the effect of blood pressure lowering. Third-generation β-blockers, such as nebivolol and carvedilol, because they have additional properties, have been shown to improve endothelial function in patients with hypertension. Calcium channel antagonists, because they have antioxidant effects, may improve endothelial function and vascular inflammation.The Angiotensin Receptor Blocker (ARBs) are able to improve endothelial dysfunction and vascular inflammation in patients with hypertension and other cardiovascular diseases. Angiotensin converting enzyme (ACE) inhibitors have shown beneficial effects on endothelial function in patients with hypertension and other cardiovascular diseases, however there are few studies evaluating the effect of treatment with this class on the reduction of C-reactive protein (CRP) levels. Further studies are needed to assess whether treatment of endothelial dysfunction and vascular inflammation may improve the prognosis of patients with essential hypertension.
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Association of Prehospital Epinephrine Administration With Survival Among Patients With Traumatic Cardiac Arrest Caused By Traffic Collisions. Sci Rep 2019; 9:9922. [PMID: 31289342 PMCID: PMC6616542 DOI: 10.1038/s41598-019-46460-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 06/28/2019] [Indexed: 01/26/2023] Open
Abstract
For traumatic cardiac arrest (TCA), the effect of prehospital epinephrine administration was unclear. The aim of this study was to evaluate the relationship between prehospital epinephrine administration and survival in patients with TCA caused by traffic collisions. We conducted a nationwide, prospective, population-based observational study involving patients who experienced out-of-hospital cardiac arrest (OHCA) by using the All-Japan Utstein Registry. Blunt trauma patients with TCA who received prehospital epinephrine were compared with those who did not receive prehospital epinephrine. The primary outcome was 1-month survival of patients. The secondary outcome was prehospital return of spontaneous circulation (ROSC). A total of 5,204 patients with TCA were analyzed. Of those, 758 patients (14.6%) received prehospital epinephrine (Epinephrine group), whereas the remaining 4,446 patients (85.4%) did not receive prehospital epinephrine (No epinephrine group). Eleven (1.5%) and 41 (0.9%) patients in the Epinephrine and No epinephrine groups, respectively, survived for 1 month. In addition, 74 (9.8%) and 40 (0.9%) patients achieved prehospital ROSC in the Epinephrine and No epinephrine groups, respectively. In multivariable logistic regression models, prehospital epinephrine administration was not associated with 1-month survival (odds ratio [OR] 1.495, 95% confidence interval [CI] 0.758 to 2.946) and was associated with prehospital ROSC (OR 3.784, 95% CI 2.102 to 6.812). A propensity score-matched analysis showed similar results for 1-month survival (OR 2.363, 95% CI 0.606 to 9,223) and prehospital ROSC (OR 6.870, 95% CI 3.326 to 14.192). Prehospital epinephrine administration in patients with TCA was not associated with 1-month survival, but was beneficial in regard to prehospital ROSC.
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37
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Dopamine outside the brain: The eye, cardiovascular system and endocrine pancreas. Pharmacol Ther 2019; 203:107392. [PMID: 31299315 DOI: 10.1016/j.pharmthera.2019.07.003] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 07/05/2019] [Indexed: 01/11/2023]
Abstract
Dopamine (DA) and DA receptors (DR) have been extensively studied in the central nervous system (CNS), but their role in the periphery is still poorly understood. Here we summarize data on DA and DRs in the eye, cardiovascular system and endocrine pancreas, three districts where DA and DA-related drugs have been studied and the expression of DR documented. In the eye, DA modulates ciliary blood flow and aqueous production, which impacts on intraocular pressure and glaucoma. In the cardiovascular system, DA increases blood pressure and heart activity, mostly through a stimulation of adrenoceptors, and induces vasodilatation in the renal circulation, possibly through D1R stimulation. In pancreatic islets, beta cells store DA and co-release it with insulin. D1R is mainly expressed in beta cells, where it stimulates insulin release, while D2R is expressed in both beta and delta cells (in the latter at higher level), where it inhibits, respectively, insulin and somatostatin release. The formation of D2R-somatostatin receptor 5 heteromers (documented in the CNS), might add complexity to the system. DA may exert both direct autocrine effects on beta cells, and indirect paracrine effects through delta cells and somatostatin. Bromocriptine, an FDA approved drug for diabetes, endowed with both D1R (antagonistic) and D2R (agonistic) actions, may exert complex effects, resulting from the integration of direct effects on beta cells and paracrine effects from delta cells. A full comprehension of peripheral DA signaling deserves further studies that may generate innovative therapeutic drugs to manage conditions such as glaucoma, cardiovascular diseases and diabetes.
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Evlakhov VI, Poyasov IZ. [Adrenergic mechanisms of regulation of pulmonary microvessels tonicity and endothelial permeability]. ANGIOLOGIIA I SOSUDISTAIA KHIRURGIIA = ANGIOLOGY AND VASCULAR SURGERY 2019; 25:11-16. [PMID: 31503242 DOI: 10.33529/angi02019320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The review contains the data on adrenergic mechanisms of regulation of pulmonary microvessels tonicity and endothelial permeability. On smooth muscle cells of pulmonary vessels there are postsynaptic α1A-, α1B-, α1D- and α2A-, α2B-, α2C-adrenoreceptors whose activation by norepinephrine induces vasoconstriction. Excitation of β1- and β2-subtypes of adrenoreceptors leads to vasodilatation, Activation of α1-2- and β1-3-adrenoreceptors of the endothelium contributes to enhancement of nitric oxide synthesis. The resulting reaction of pulmonary microvessels in response to administration of catecholamines appears be determined by interaction of adrenergic mechanisms of regulation of tonicity of smooth muscle cells and synthesis of nitric oxide by the endothelium. Constrictor and dilator reactions of pulmonary venous vessels in response to activation of α- and β-adrenoreceptors, respectively, are more pronounced than in pulmonary arteries and make a significant contribution to the shifts of pulmonary vascular resistance. Excitation of α2- and β2-adrenoreceptors of endothelial cells of microvessels of the lungs contributes to a decrease in their permeability. In order to find out the role of adrenergic mechanisms in shifts of the capillary filtration coefficient in simulating various pathology of pulmonary circulation, it is necessary to carry out integral studies that would make it possible to evaluate alterations in macro- and microhaemodynamics of the lungs.
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Affiliation(s)
- V I Evlakhov
- Laboratory of Physiology of Visceral Systems named after K.M. Bykov, Institute of Experimental Medicine, Saint Petersburg, Russia
| | - I Z Poyasov
- Laboratory of Physiology of Visceral Systems named after K.M. Bykov, Institute of Experimental Medicine, Saint Petersburg, Russia
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Electrical field-induced contractions on Crotalus durissus terrificus and Bothrops jararaca aortae are caused by endothelium-derived catecholamine. PLoS One 2018; 13:e0203573. [PMID: 30199552 PMCID: PMC6130875 DOI: 10.1371/journal.pone.0203573] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 08/22/2018] [Indexed: 01/23/2023] Open
Abstract
Endothelium is the main source of catecholamine release in the electrical-field stimulation (EFS)–induced aortic contractions of the non- venomous snake Panterophis guttatus. However, adrenergic vasomotor control in venomous snakes such as Crotalus durissus terrificus and Bothrops jararaca has not yet been investigated. Crotalus and Bothrops aortic rings were mounted in an organ bath system. EFS-induced aortae contractions were performed in the presence and absence of guanethidine (30 μM), phentolamine (10 μM) or tetrodotoxin (1 μM). Frequency-induced contractions were also performed in aortae with endothelium removed. Immunohistochemical localization of both tyrosine hydroxylase (TH) and S-100 protein in snake aortic rings and brains, as well as in human tissue (paraganglioma tumour) were carried out. EFS (4 to 16 Hz) induced frequency-dependent aortic contractions in both Crotalus and Bothrops. The EFS-induced contractions were significantly reduced in the presence of either guanethidine or phentolamine in both snakes (p<0.05), whereas tetrodotoxin had no effect in either. Removal of the endothelium abolished the EFS-induced contractions in both snakes aortae (p<0.05). Immunohistochemistry revealed TH localization in endothelium of both snake aortae and human vessels. Nerve fibers were not observed in either snake aortae. In contrast, both TH and S100 protein were observed in snake brains and human tissue. Vascular endothelium is the main source of catecholamine release in EFS-induced contractions in Crotalus and Bothrops aortae. Human endothelial cells also expressed TH, indicating that endothelium- derived catecholamines possibly occur in mammalian vessels.
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Sabbagh MF, Heng JS, Luo C, Castanon RG, Nery JR, Rattner A, Goff LA, Ecker JR, Nathans J. Transcriptional and epigenomic landscapes of CNS and non-CNS vascular endothelial cells. eLife 2018; 7:36187. [PMID: 30188322 PMCID: PMC6126923 DOI: 10.7554/elife.36187] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 08/21/2018] [Indexed: 02/06/2023] Open
Abstract
Vascular endothelial cell (EC) function depends on appropriate organ-specific molecular and cellular specializations. To explore genomic mechanisms that control this specialization, we have analyzed and compared the transcriptome, accessible chromatin, and DNA methylome landscapes from mouse brain, liver, lung, and kidney ECs. Analysis of transcription factor (TF) gene expression and TF motifs at candidate cis-regulatory elements reveals both shared and organ-specific EC regulatory networks. In the embryo, only those ECs that are adjacent to or within the central nervous system (CNS) exhibit canonical Wnt signaling, which correlates precisely with blood-brain barrier (BBB) differentiation and Zic3 expression. In the early postnatal brain, single-cell RNA-seq of purified ECs reveals (1) close relationships between veins and mitotic cells and between arteries and tip cells, (2) a division of capillary ECs into vein-like and artery-like classes, and (3) new endothelial subtype markers, including new validated tip cell markers.
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Affiliation(s)
- Mark F Sabbagh
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, United States.,Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, United States
| | - Jacob S Heng
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, United States.,Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, United States
| | - Chongyuan Luo
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, La Jolla, United States.,Howard Hughes Medical Institute, The Salk Institute for Biological Studies, La Jolla, United States
| | - Rosa G Castanon
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, La Jolla, United States
| | - Joseph R Nery
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, La Jolla, United States
| | - Amir Rattner
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, United States
| | - Loyal A Goff
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, United States.,Institute for Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, United States
| | - Joseph R Ecker
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, La Jolla, United States.,Howard Hughes Medical Institute, The Salk Institute for Biological Studies, La Jolla, United States
| | - Jeremy Nathans
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, United States.,Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, United States.,Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, United States.,Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, United States
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41
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Papa I, Vinuesa CG. Synaptic Interactions in Germinal Centers. Front Immunol 2018; 9:1858. [PMID: 30150988 PMCID: PMC6099157 DOI: 10.3389/fimmu.2018.01858] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 07/27/2018] [Indexed: 12/27/2022] Open
Abstract
The germinal center (GC) is a complex, highly dynamic microanatomical niche that allows the generation of high-affinity antibody-producing plasma cells and memory B cells. These cells constitute the basis of long-lived highly protective antibody responses. For affinity maturation to occur, B cells undergo multiple rounds of proliferation and mutation of the genes that encode the immunoglobulin V region followed by selection by specialized T cells called follicular helper T (TFH) cells. In order to achieve this result, the GC requires spatially and temporally coordinated interactions between the different cell types, including B and T lymphocytes and follicular dendritic cells. Cognate interactions between TFH and GC B cells resemble cellular connections and synaptic communication within the nervous system, which allow signals to be transduced rapidly and effectively across the synaptic cleft. Such immunological synapses are particularly critical in the GC where the speed of T–B cell interactions is faster and their duration shorter than at other sites. In addition, the antigen-based specificity of cognate interactions in GCs is critical for affinity-based selection in which B cells compete for T cell help so that rapid modulation of the signaling threshold determines the outcome of the interaction. In the context of GCs, which contain large numbers of cells in a highly compacted structure, focused delivery of signals across the interacting cells becomes particularly important. Promiscuous or bystander delivery of positive selection signals could potentially lead to the appearance of long-lived self-reactive B cell clones. Cytokines, cytotoxic granules, and more recently neurotransmitters have been shown to be transferred from TFH to B cells upon cognate interactions. This review describes the current knowledge on immunological synapses occurring during GC responses including the type of granules, their content, and function in TFH-mediated help to B cells.
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Affiliation(s)
- Ilenia Papa
- John Curtin School of Medical Research, Australian National University, Acton, ACT, Australia
| | - Carola G Vinuesa
- John Curtin School of Medical Research, Australian National University, Acton, ACT, Australia
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Ajam T, Ajam S, Devaraj S, Mohammed K, Sawada S, Kamalesh M. Effect of carvedilol vs metoprolol succinate on mortality in heart failure with reduced ejection fraction. Am Heart J 2018; 199:1-6. [PMID: 29754646 DOI: 10.1016/j.ahj.2018.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 01/10/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND Beta blocker therapy is indicated in all patients with heart failure with reduced ejection fraction (HFrEF) as per current guidelines. The relative benefit of carvedilol to metoprolol succinate remains unknown. This study aimed to compare survival benefit of carvedilol to metoprolol succinate. METHODS The VA's databases were queried to identify 114,745 patients diagnosed with HFrEF from 2007 to 2015 who were prescribed carvedilol and metoprolol succinate. The study estimated the survival probability and hazard ratio by comparing the carvedilol and metoprolol patients using propensity score matching with replacement techniques on observed covariates. Sub-group analyses were performed separately for men, women, elderly, duration of therapy of more than 3 months, and diabetic patients. RESULTS A total of 43,941 metoprolol patients were matched with as many carvedilol patients. The adjusted hazard ratio of mortality for metoprolol succinate compared to carvedilol was 1.069 (95% CI: 1.046-1.092, P value: < .001). At six years, the survival probability was higher in the carvedilol group compared to the metoprolol succinate group (55.6% vs 49.2%, P value < .001). The sub-group analyses show that the results hold true separately for male, over or under 65 years old, therapy duration more than three months and non-diabetic patients. CONCLUSION Patients with HFrEF taking carvedilol had improved survival as compared to metoprolol succinate. The data supports the need for furthering testing to determine optimal choice of beta blockers in patients with heart failure with reduced ejection fraction.
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Campos R, Mónica FZ, Justo AFO, Cogo JC, Oliveira EDT, Moreno RA, Antunes E, De Nucci G. Electrical field stimulation-induced contractions on Pantherophis guttatus corpora cavernosa and aortae. PLoS One 2018; 13:e0196123. [PMID: 29672643 PMCID: PMC5908133 DOI: 10.1371/journal.pone.0196123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 04/06/2018] [Indexed: 01/30/2023] Open
Abstract
A tetrodotoxin (TTX)-resistant mechanism is responsible for the electrical field stimulation (EFS)-induced contractions and relaxations of Crotalus durissus terrificus corpora cavernosa. Here it was investigated whether this mechanism also occurs in corpora cavernosa and aortae of the non-venomous snake Pantherophis guttatus corpora cavernosa and aortae. Corpora cavernosa and aortic rings isolated from Pantherophis guttatus snake were mounted in organ bath system for isometric tension recording. EFS-induced contractions in both tissues were performed in the presence and absence of guanethidine (30 μM), phentolamine (10 μM) and tetrodotoxin (1 μM). In another set of experiments, the endothelium was removed from aortic rings and EFS-induced contractions were performed in the denuded rings. Electrical field stimulation-induced contractions were frequency-dependent in Pantherophis guttatus corpora cavernosa and aortic rings. The contractions were significantly reduced in the presence of guanethidine (30 μM) or phentolamine (10 μM). Pre-treatment with tetrodotoxin had no effect on the EFS-induced contractions of either corpora cavernosa or aortic rings. Surprisingly, the EFS-induced contractions of aortic rings denuded of endothelium were almost abolished. These results indicate that the TTX-resistant mechanism is present in EFS-induced contractions of Pantherophis guttatus corpora cavernosa and aortae. The experiments performed in the aorta indicate that the endothelium is the main source for the release of catecholamines induced by EFS.
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Affiliation(s)
- Rafael Campos
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas, (UNICAMP), Campinas, Brazil
- * E-mail:
| | - Fabíola Z. Mónica
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas, (UNICAMP), Campinas, Brazil
| | | | - José Carlos Cogo
- Faculty of Biomedical Engineering, Brazil University, Itaquera—São Paulo, Brazil
| | | | - Ronilson Agnaldo Moreno
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas, (UNICAMP), Campinas, Brazil
| | - Edson Antunes
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas, (UNICAMP), Campinas, Brazil
| | - Gilberto De Nucci
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas, (UNICAMP), Campinas, Brazil
- Institute of Biomedical Sciences, University of Sao Paulo (USP), Sao Paulo, Brazil
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The Amino-Terminal Domain of GRK5 Inhibits Cardiac Hypertrophy through the Regulation of Calcium-Calmodulin Dependent Transcription Factors. Int J Mol Sci 2018; 19:ijms19030861. [PMID: 29543709 PMCID: PMC5877722 DOI: 10.3390/ijms19030861] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 02/22/2018] [Accepted: 03/09/2018] [Indexed: 01/19/2023] Open
Abstract
We have recently demonstrated that the amino-terminal domain of G protein coupled receptor kinase (GRK) type 5, (GRK5-NT) inhibits NFκB activity in cardiac cells leading to a significant amelioration of LVH. Since GRK5-NT is known to bind calmodulin, this study aimed to evaluate the functional role of GRK5-NT in the regulation of calcium-calmodulin-dependent transcription factors. We found that the overexpression of GRK5-NT in cardiomyoblasts significantly reduced the activation and the nuclear translocation of NFAT and its cofactor GATA-4 in response to phenylephrine (PE). These results were confirmed in vivo in spontaneously hypertensive rats (SHR), in which intramyocardial adenovirus-mediated gene transfer of GRK5-NT reduced both wall thickness and ventricular mass by modulating NFAT and GATA-4 activity. To further verify in vitro the contribution of calmodulin in linking GRK5-NT to the NFAT/GATA-4 pathway, we examined the effects of a mutant of GRK5 (GRK5-NTPB), which is not able to bind calmodulin. When compared to GRK5-NT, GRK5-NTPB did not modify PE-induced NFAT and GATA-4 activation. In conclusion, this study identifies a double effect of GRK5-NT in the inhibition of LVH that is based on the regulation of multiple transcription factors through means of different mechanisms and proposes the amino-terminal sequence of GRK5 as a useful prototype for therapeutic purposes.
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Rahman AA, Lai NK, Albright JE, Urquhart PE, Webb AR, Morrison BE. Nigral dopaminergic neuron replenishment in adult mice through VE-cadherin-expressing neural progenitor cells. Neural Regen Res 2017; 12:1865-1869. [PMID: 29239333 PMCID: PMC5745841 DOI: 10.4103/1673-5374.219050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The function of dopaminergic neurons in the substantia nigra is of central importance to the coordination of movement by the brain's basal ganglia circuitry. This is evidenced by the loss of these neurons, resulting in the cardinal motor deficits associated with Parkinson's disease. In order to fully understand the physiology of these key neurons and develop potential therapies for their loss, it is essential to determine if and how dopaminergic neurons are replenished in the adult brain. Recent work has presented evidence for adult neurogenesis of these neurons by Nestin+/Sox2– neural progenitor cells. We sought to further validate this finding and explore a potential atypical origin for these progenitor cells. Since neural progenitor cells have a proximal association with the vasculature of the brain and subsets of endothelial cells are Nestin+, we hypothesized that dopaminergic neural progenitors might share a common cell lineage. Therefore, we employed a VE-cadherin promoter-driven CREERT2:THlox/THlox transgenic mouse line to ablate the tyrosine hydroxylase gene from endothelial cells in adult animals. After 26 weeks, but not 13 weeks, following the genetic blockade of tyrosine hydroxylase expression in VE-cadherin+ cells, we observed a significant reduction in tyrosine hydroxylase+ neurons in the substantia nigra. The results from this genetic lineage tracing study suggest that dopaminergic neurons are replenished in adult mice by a VE-cadherin+ progenitor cell population potentially arising from an endothelial lineage.
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Affiliation(s)
- Abir A Rahman
- Department of Biological Sciences, Boise State University, Boise, ID; Biomolecular Ph.D. Program, Boise State University, Boise, ID, USA
| | - Nathan K Lai
- Department of Biological Sciences, Boise State University, Boise, ID, USA
| | - Joshua E Albright
- Department of Biological Sciences, Boise State University, Boise, ID, USA
| | - Paige E Urquhart
- Department of Biological Sciences, Boise State University, Boise, ID, USA
| | - Abby R Webb
- Department of Biological Sciences, Boise State University, Boise, ID, USA
| | - Brad E Morrison
- Department of Biological Sciences, Boise State University, Boise, ID; Biomolecular Ph.D. Program, Boise State University, Boise, ID; Department of Biological Sciences, Boise State University, Boise, ID, USA
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Pirone A, Miragliotta V, Ciregia F, Giannessi E, Cozzi B. The catecholaminergic innervation of the claustrum of the pig. J Anat 2017; 232:158-166. [PMID: 28967096 DOI: 10.1111/joa.12706] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2017] [Indexed: 01/26/2023] Open
Abstract
Over the past decades, the number of studies employing the pig brain as a model for neurochemical studies has dramatically increased. The key translational features of the pig brain are the similarities with the cortical and subcortical structures of the human brain. In addition, the caudalmost part of the pig claustrum (CL) is characterized by a wide enlargement called posterior puddle, an ideal structure for physiological recordings. Several hypotheses have been proposed for CL function, the key factor being its reciprocal connectivity with most areas of the cerebral cortex and selected subcortical structures. However, afferents from the brainstem could also be involved. The brainstem is the main source of catecholaminergic axons that play an important neuromodulatory action in different brain functions. To study a possible role of the CL in catecholaminergic pathways, we analyzed the presence and the distribution of afferents immunostained with antibodies against tyrosine hydroxylase (TH) and dopamine betahydroxylase (DBH) in the pig CL. Here we show that the CL contains significant TH immunoreactive axons contacting perikarya, whereas projections staining for DBH are very scarce. Our findings hint at the possibility that brainstem catecholaminergic afferents project to the CL, suggesting (i) a possible role of this nucleus in functions controlled by brainstem structures; and, consequently, (ii) its potential involvement in the pathophysiology of neurodegenerative pathologies, including Parkinson's disease (PD).
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Affiliation(s)
- Andrea Pirone
- Department of Veterinary Sciences, University of Pisa, Pisa, Italy
| | | | - Federica Ciregia
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.,Department of Pharmacy, University of Pisa, Pisa, Italy
| | | | - Bruno Cozzi
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy
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Campos R, Mónica FZ, Rodrigues RL, Rojas-Moscoso JA, Moreno RA, Cogo JC, de Oliveira MA, Antunes E, De Nucci G. Tetrodotoxin-insensitive electrical field stimulation-induced contractions on Crotalus durissus terrificus corpus cavernosum. PLoS One 2017; 12:e0183766. [PMID: 28837636 PMCID: PMC5570490 DOI: 10.1371/journal.pone.0183766] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 08/10/2017] [Indexed: 11/18/2022] Open
Abstract
Reptiles are the first amniotes to develop an intromitent penis, however until now the mechanisms involved in the electrical field stimulation-induced contraction on corpora cavernosa isolated from Crotalus durissus terrificus were not investigated. Crotalus and rabbit corpora cavernosa were mounted in 10 mL organ baths for isometric tension recording. Electrical field stimulation (EFS)-induced contractions were performed in presence/absence of phentolamine (10 μM), guanethidine (30 μM), tetrodotoxin (1 μM and 1mM), A-803467 (10 μM), 3-iodo-L-Tyrosine (1 mM), salsolinol (3 μM) and a modified Krebs solution (equimolar substitution of NaCl by N-methyl-D-glucamine). Immuno-histochemistry for tyrosine hydroxylase was also performed. Electrical field stimulation (EFS; 8 Hz and 16 Hz) caused contractions in both Crotalus and rabbit corpora cavernosa. The contractions were abolished by previous incubation with either phentolamine or guanethidine. Tetrodotoxin (1 μM) also abolished the EFS-induced contractions of rabbit CC, but did not affect EFS-induced contractions of Crotalus CC. Addition of A-803467 (10 μM) did not change the EFS-induced contractions of Crotalus CC but abolished rabbit CC contractions. 3-iodo-L-Tyrosine and salsolinol had no effect on EFS-induced contractions of Crotalus CC and Rabbit CC. Replacement of NaCl by N- Methyl-D-glucamine (NMDG) abolished EFS-induced contractions of rabbit CC, but did not affect Crotalus CC. The presence of tyrosine hydroxylase was identified in endothelial cells only of Crotalus CC. Since the EFS-induced contractions of Crotalus CC is dependent on catecholamine release, insensitive to TTX, insensitive to A803467 and to NaCl replacement, it indicates that the source of cathecolamine is unlikely to be from adrenergic terminals. The finding that tyrosine hydroxylase is present in endothelial cells suggests that these cells can modulate Crotalus CC tone.
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Affiliation(s)
- Rafael Campos
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
- * E-mail:
| | - Fabíola Z. Mónica
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Renata Lopes Rodrigues
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | | | | | - José Carlos Cogo
- Faculty of Medical Sciences, Brazil University, Fernandópolis, Brazil
| | - Marco Antonio de Oliveira
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Edson Antunes
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Gilberto De Nucci
- Faculty of Medical Sciences, Department of Pharmacology, University of Campinas (UNICAMP), Campinas, Brazil
- Faculty of Medical Sciences, Brazil University, Fernandópolis, Brazil
- Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, Brazil
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Joris PJ, Plat J, Bakker SJL, Mensink RP. Effects of long-term magnesium supplementation on endothelial function and cardiometabolic risk markers: A randomized controlled trial in overweight/obese adults. Sci Rep 2017; 7:106. [PMID: 28273891 PMCID: PMC5428005 DOI: 10.1038/s41598-017-00205-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 02/14/2017] [Indexed: 01/22/2023] Open
Abstract
Long-term magnesium supplementation improves arterial stiffness, a cardiovascular disease risk marker. Effects on endothelial function may be another mechanism whereby increased magnesium intakes affect cardiovascular risk. Therefore, a 24-week, randomized, double-blind, placebo-controlled trial was performed to examine effects of magnesium supplementation on endothelial function and cardiometabolic risk markers. Fifty-two overweight and obese subjects (30 men and 22 women, age 62 ± 6 years) were randomized to receive either three times daily magnesium (total dose: 350 mg) or placebo capsules. Endothelial function was assessed at the start and at the end of the study. Cardiometabolic risk markers were measured at baseline, after 12 weeks, and at week 24. Brachial artery flow-mediated vasodilation did not change following long-term magnesium supplementation (0.49 pp; 95% CI: −0.38 to 1.36 pp; P = 0.26). Changes in reactive hyperemia index, retinal microvascular caliber and plasma markers for microvascular endothelial function (sVCAM-1, sICAM-1 and sE-selectin) were also not different. In addition, no effects on serum lipids, plasma glucose, insulin sensitivity, and low-grade systemic inflammation were observed. In conclusion, a daily magnesium supplement of 350 mg for 24 weeks does not improve endothelial function and cardiometabolic risk markers in overweight and obese middle-aged and elderly adults.
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Affiliation(s)
- Peter J Joris
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, 6200, MD, The Netherlands. .,The Top Institute of Food and Nutrition (TIFN), Wageningen, 6709, PA, The Netherlands.
| | - Jogchum Plat
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, 6200, MD, The Netherlands
| | - Stephan J L Bakker
- Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, 9713, GZ, The Netherlands
| | - Ronald P Mensink
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, 6200, MD, The Netherlands.,The Top Institute of Food and Nutrition (TIFN), Wageningen, 6709, PA, The Netherlands
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Osinga TE, Links TP, Dullaart RPF, Pacak K, van der Horst-Schrivers ANA, Kerstens MN, Kema IP. Emerging role of dopamine in neovascularization of pheochromocytoma and paraganglioma. FASEB J 2017; 31:2226-2240. [PMID: 28264974 DOI: 10.1096/fj.201601131r] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 02/07/2017] [Indexed: 01/11/2023]
Abstract
Dopamine is a catecholamine that acts both as a neurotransmitter and as a hormone, exerting its functions via dopamine (DA) receptors that are present in a broad variety of organs and cells throughout the body. In the circulation, DA is primarily stored in and transported by blood platelets. Recently, the important contribution of DA in the regulation of angiogenesis has been recognized. In vitro and in vivo studies have shown that DA inhibits angiogenesis through activation of the DA receptor type 2. Overproduction of catecholamines is the biochemical hallmark of pheochromocytoma (PCC) and paraganglioma (PGL). The increased production of DA has been shown to be an independent predictor of malignancy in these tumors. The precise relationship underlying the association between DA production and PCC and PGL behavior needs further clarification. Herein, we review the biochemical and physiologic aspects of DA with a focus on its relations with VEGF and hypoxia inducible factor related angiogenesis pathways, with special emphasis on DA producing PCC and PGL.-Osinga, T. E., Links, T. P., Dullaart, R. P. F., Pacak, K., van der Horst-Schrivers, A. N. A., Kerstens, M. N., Kema, I. P. Emerging role of dopamine in neovascularization of pheochromocytoma and paraganglioma.
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Affiliation(s)
- Thamara E Osinga
- Department of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Thera P Links
- Department of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Robin P F Dullaart
- Department of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Karel Pacak
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Michiel N Kerstens
- Department of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ido P Kema
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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50
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Seto SW, Chang D, Ko WM, Zhou X, Kiat H, Bensoussan A, Lee SMY, Hoi MPM, Steiner GZ, Liu J. Sailuotong Prevents Hydrogen Peroxide (H₂O₂)-Induced Injury in EA.hy926 Cells. Int J Mol Sci 2017; 18:E95. [PMID: 28067784 PMCID: PMC5297729 DOI: 10.3390/ijms18010095] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/15/2016] [Accepted: 12/22/2016] [Indexed: 12/20/2022] Open
Abstract
Sailuotong (SLT) is a standardised three-herb formulation consisting of Panax ginseng, Ginkgo biloba, and Crocus sativus designed for the management of vascular dementia. While the latest clinical trials have demonstrated beneficial effects of SLT in vascular dementia, the underlying cellular mechanisms have not been fully explored. The aim of this study was to assess the ability and mechanisms of SLT to act against hydrogen peroxide (H₂O₂)-induced oxidative damage in cultured human vascular endothelial cells (EAhy926). SLT (1-50 µg/mL) significantly suppressed the H₂O₂-induced cell death and abolished the H₂O₂-induced reactive oxygen species (ROS) generation in a concentration-dependent manner. Similarly, H₂O₂ (0.5 mM; 24 h) caused a ~2-fold increase in lactate dehydrogenase (LDH) release from the EA.hy926 cells which were significantly suppressed by SLT (1-50 µg/mL) in a concentration-dependent manner. Incubation of SLT (50 µg/mL) increased superoxide dismutase (SOD) activity and suppressed the H₂O₂-enhanced Bax/Bcl-2 ratio and cleaved caspase-3 expression. In conclusion, our results suggest that SLT protects EA.hy916 cells against H₂O₂-mediated injury via direct reduction of intracellular ROS generation and an increase in SOD activity. These protective effects are closely associated with the inhibition of the apoptotic death cascade via the suppression of caspase-3 activation and reduction of Bax/Bcl-2 ratio, thereby indicating a potential mechanism of action for the clinical effects observed.
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Affiliation(s)
- Sai Wang Seto
- National Institute of Complementary Medicine (NICM), Western Sydney University, Penrith, NSW 2571, Australia.
| | - Dennis Chang
- National Institute of Complementary Medicine (NICM), Western Sydney University, Penrith, NSW 2571, Australia.
| | - Wai Man Ko
- National Institute of Complementary Medicine (NICM), Western Sydney University, Penrith, NSW 2571, Australia.
| | - Xian Zhou
- National Institute of Complementary Medicine (NICM), Western Sydney University, Penrith, NSW 2571, Australia.
| | - Hosen Kiat
- Faculty of Medicine, University of New South Wales, NSW 2052, Australia.
- School of Medicine, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
- Faculty of Medicine and Health Sciences, Macquarie University, NSW 2109, Australia.
| | - Alan Bensoussan
- National Institute of Complementary Medicine (NICM), Western Sydney University, Penrith, NSW 2571, Australia.
| | - Simon M Y Lee
- State Key Laboratory Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - Maggie P M Hoi
- State Key Laboratory Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - Genevieve Z Steiner
- National Institute of Complementary Medicine (NICM), Western Sydney University, Penrith, NSW 2571, Australia.
| | - Jianxun Liu
- National Institute of Complementary Medicine (NICM), Western Sydney University, Penrith, NSW 2571, Australia.
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China.
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