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Santos FM, Costa VRDM, de Araújo S, de Sousa CDF, Moreira TP, Gonçalves MR, dos Santos ACPM, Ferreira HAS, Costa PAC, Barrioni BR, Bargi-Souza P, Pereira MDM, Nogueira ML, Souza DDG, Guimarães PPG, Teixeira MM, Queiroz-Junior CM, Costa VV. Essential role of the CCL2-CCR2 axis in Mayaro virus-induced disease. J Virol 2024; 98:e0110223. [PMID: 38169294 PMCID: PMC10805060 DOI: 10.1128/jvi.01102-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/02/2023] [Indexed: 01/05/2024] Open
Abstract
Mayaro virus (MAYV) is an emerging arbovirus member of the Togaviridae family and Alphavirus genus. MAYV infection causes an acute febrile illness accompanied by persistent polyarthralgia and myalgia. Understanding the mechanisms involved in arthritis caused by alphaviruses is necessary to develop specific therapies. In this work, we investigated the role of the CCL2/CCR2 axis in the pathogenesis of MAYV-induced disease. For this, wild-type (WT) C57BL/6J and CCR2-/- mice were infected with MAYV subcutaneously and evaluated for disease development. MAYV infection induced an acute inflammatory disease in WT mice. The immune response profile was characterized by an increase in the production of inflammatory mediators, such as IL-6, TNF, and CCL2. Higher levels of CCL2 at the local and systemic levels were followed by the significant recruitment of CCR2+ macrophages and a cellular response orchestrated by these cells. CCR2-/- mice showed an increase in CXCL-1 levels, followed by a replacement of the macrophage inflammatory infiltrate by neutrophils. Additionally, the absence of the CCR2 receptor protected mice from bone loss induced by MAYV. Accordingly, the silencing of CCL2 chemokine expression in vivo and the pharmacological blockade of CCR2 promoted a partial improvement in disease. Cell culture data support the mechanism underlying the bone pathology of MAYV, in which MAYV infection promotes a pro-osteoclastogenic microenvironment mediated by CCL2, IL-6, and TNF, which induces the migration and differentiation of osteoclast precursor cells. Overall, these data contribute to the understanding of the pathophysiology of MAYV infection and the identification future of specific therapeutic targets in MAYV-induced disease.IMPORTANCEThis work demonstrates the role of the CCL2/CCR2 axis in MAYV-induced disease. The infection of wild-type (WT) C57BL/6J and CCR2-/- mice was associated with high levels of CCL2, an important chemoattractant involved in the recruitment of macrophages, the main precursor of osteoclasts. In the absence of the CCR2 receptor, there is a mitigation of macrophage migration to the target organs of infection and protection of these mice against bone loss induced by MAYV infection. Much evidence has shown that host immune response factors contribute significantly to the tissue damage associated with alphavirus infections. Thus, this work highlights molecular and cellular targets involved in the pathogenesis of arthritis triggered by MAYV and identifies novel therapeutic possibilities directed to the host inflammatory response unleashed by MAYV.
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Affiliation(s)
- Franciele Martins Santos
- Department of Morphology, Drug Research and Development Center, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Victor Rodrigues de Melo Costa
- Department of Morphology, Drug Research and Development Center, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Simone de Araújo
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Carla Daiane Ferreira de Sousa
- Department of Microbiology, Host Microorganism Interaction Laboratory, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Thaiane Pinto Moreira
- Department of Microbiology, Host Microorganism Interaction Laboratory, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Matheus Rodrigues Gonçalves
- Department of Morphology, Drug Research and Development Center, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Anna Clara Paiva Menezes dos Santos
- Department of Microbiology, Host Microorganism Interaction Laboratory, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Pedro Augusto Carvalho Costa
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Breno Rocha Barrioni
- Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Paula Bargi-Souza
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Marivalda de Magalhães Pereira
- Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Maurício Lacerda Nogueira
- Virology Research Laboratory, São José do Rio Preto School of Medicine (FAMERP), São José do Rio Preto, São Paulo, Brazil
| | - Danielle da Glória Souza
- Department of Microbiology, Host Microorganism Interaction Laboratory, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Drug Research and Development Center, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Celso Martins Queiroz-Junior
- Department of Morphology, Drug Research and Development Center, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Vivian Vasconcelos Costa
- Department of Morphology, Drug Research and Development Center, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Moreira TP, Sousa CDFD, Melo Costa VRD, Queiroz-Junior CM, Santos FM, Bonilha CS, Ésper LM, Nogueira ML, Cunha TM, Teixeira MM, Costa VV, de Souza DDG. Tumour necrosis factor plays a deleterious role in the pathogenesis of chikungunya virus infection. Immunology 2023; 168:444-458. [PMID: 36164989 DOI: 10.1111/imm.13583] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 09/01/2022] [Indexed: 11/28/2022] Open
Abstract
Arthralgia is a hallmark of chikungunya virus (CHIKV) infection and can be very debilitating and associated with a robust local inflammatory response. Many pathophysiological aspects associated with the disease remain to be elucidated. Here, we describe a novel model of CHIKV infection in immunocompetent mice and evaluate the role of tumour necrosis factor in the pathogenesis of the disease. C57BL/6 wild type (WT) or TNF receptor 1 deficient (TNFR1-/- ) mice were inoculated with 1 × 106 PFU of CHIKV in the paw. Alternatively, etanercept was used to inhibit TNF in infected WT mice. Hypernociception, inflammatory and virological analysis were performed. Inoculation of CHIKV into WT mice induced persistent hypernociception. There was significant viral replication in target organs and local production of inflammatory mediators in early time-points after infection. CHIKV infection was associated with specific humoral IgM and IgG responses. In TNFR1-/- mice, there was a decrease in the hypernociception threshold, which was associated with a milder local inflammatory response in the paw but delayed viral clearance. Local or systemic treatment with etanercept reduced CHIKV-induced hypernociception. This is the first study to describe hypernociception, a clinical correlation of arthralgia, in immunocompetent mice infected with CHIKV. It also demonstrates the dual role of TNF in contributing to viral clearance but driving tissue damage and hypernociception. Inhibition of TNF may have therapeutic benefits but its role in viral clearance suggests that viral levels must be monitored in CHIKV-infected patients and that TNF inhibitors should ideally be used in combination with anti-viral drugs.
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Affiliation(s)
- Thaiane Pinto Moreira
- Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | | | | | - Franciele Martins Santos
- Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Caio Santos Bonilha
- Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.,Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Lísia Maria Ésper
- Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mauricio Lacerda Nogueira
- Department of Dermatological, Infectious and Parasitic Diseases, Medical School of São José do Rio Preto, São Paulo, São José do Rio Preto, Brazil
| | - Thiago Mattar Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Mauro Martins Teixeira
- Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Vivian Vasconcelos Costa
- Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Daniele da Glória de Souza
- Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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de Menezes MT, Moreira FRR, Whittaker C, Santos FM, Queiroz DC, Geddes V, Fonseca PLC, de Jesus JG, Mendes-Oliveira F, Reis-Souza V, Santos B, Zauli DAG, de Lima AB, de Brito Mendonça C, Alvim LB, do Prado Silva J, Malta FSV, de Souza Ferreira AC, Faria NR, Sabino EC, Aguiar RS. Dynamics of Early Establishment of SARS-CoV-2 VOC Omicron Lineages in Minas Gerais, Brazil. Viruses 2023; 15:585. [PMID: 36851799 PMCID: PMC9962645 DOI: 10.3390/v15020585] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/21/2023] [Accepted: 01/24/2023] [Indexed: 02/22/2023] Open
Abstract
Brazil is one of the nations most affected by Coronavirus disease 2019 (COVID-19). The introduction and establishment of new virus variants can be related to an increase in cases and fatalities. The emergence of Omicron, the most modified SARS-CoV-2 variant, caused alarm for the public health of Brazil. In this study, we examined the effects of the Omicron introduction in Minas Gerais (MG), the second-most populous state of Brazil. A total of 430 Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) samples from November 2021 to June 2022 from Belo Horizonte (BH) city were sequenced. These newly sequenced genomes comprise 72% of all previously available SARS-CoV-2 genomes for the city. Evolutionary analysis of novel viral genomes reveals that a great diversity of Omicron sublineages have circulated in BH, a pattern in-keeping with observations across Brazil more generally. Bayesian phylogeographic reconstructions indicate that this diversity is a product of a large number of international and national importations. As observed previously, São Paulo state is shown as a significant hub for viral spread throughout the country, contributing to around 70% of all viral Omicron introductions detected in MG.
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Affiliation(s)
- Mariane Talon de Menezes
- Laboratory of Molecular Virology, Institute of Biology, Department of Genetics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
| | - Filipe Romero Rebello Moreira
- Laboratory of Molecular Virology, Institute of Biology, Department of Genetics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
- MRC Centre for Global Infectious Disease Analysis, Imperial College London, London SW7 2BX, UK
| | - Charles Whittaker
- MRC Centre for Global Infectious Disease Analysis, Imperial College London, London SW7 2BX, UK
| | - Franciele Martins Santos
- Laboratory of Integrative Biology, Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270, Brazil
| | - Daniel Costa Queiroz
- Laboratory of Integrative Biology, Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270, Brazil
| | - Victor Geddes
- Laboratory of Integrative Biology, Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270, Brazil
| | - Paula Luize Camargos Fonseca
- Laboratory of Integrative Biology, Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270, Brazil
| | - Jaqueline Góes de Jesus
- Institute of Tropical Medicine, Faculty of Medicine, University of São Paulo, São Paulo 04023, Brazil
- Department of Infectious and Parasitic Diseases, Faculty of Medicine, University of São Paulo, São Paulo 04023, Brazil
| | - Franciane Mendes-Oliveira
- Institute of Tropical Medicine, Faculty of Medicine, University of São Paulo, São Paulo 04023, Brazil
| | - Valquíria Reis-Souza
- Institute of Tropical Medicine, Faculty of Medicine, University of São Paulo, São Paulo 04023, Brazil
| | | | | | - Aline Brito de Lima
- Pardini Group, Research and Development Department, Belo Horizonte 31270, Brazil
| | | | - Luige Biciati Alvim
- Pardini Group, Research and Development Department, Belo Horizonte 31270, Brazil
| | - Joice do Prado Silva
- Pardini Group, Research and Development Department, Belo Horizonte 31270, Brazil
| | | | | | - Nuno R. Faria
- MRC Centre for Global Infectious Disease Analysis, Imperial College London, London SW7 2BX, UK
- Institute of Tropical Medicine, Faculty of Medicine, University of São Paulo, São Paulo 04023, Brazil
- Department of Zoology, University of Oxford, Oxford OX3 7BN, UK
| | - Ester Cerdeira Sabino
- Institute of Tropical Medicine, Faculty of Medicine, University of São Paulo, São Paulo 04023, Brazil
- Department of Infectious and Parasitic Diseases, Faculty of Medicine, University of São Paulo, São Paulo 04023, Brazil
| | - Renato Santana Aguiar
- Laboratory of Molecular Virology, Institute of Biology, Department of Genetics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
- Laboratory of Integrative Biology, Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270, Brazil
- D’OR Institute of Research and Teaching, Rio de Janeiro 21941-901, Brazil
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Ferreira APS, Seguro FS, Abdo ARN, Santos FM, Maciel FVR, Nardinelli L, Giorgi RR, Ruiz ARL, Rocha VG, Bendit I. EFICÁCIA NO MUNDO REAL DO TRATAMENTO COM MESILATO DE IMATINIBE EM PACIENTES COM LEUCEMIA MIELOIDE CRÔNICA FASE CRÔNICA. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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5
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Oliveira AV, Lanna EAT, Motta NC, Souza G, Souza GA, Oliveira JM, Freato TA, Santos FM. Extenders and cryosolutions for Grumata (Prochilodus vimboides) sperm preservation. Cryo Letters 2022; 43:246-254. [PMID: 36626128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Prochilodus vimboides populations are being reduced in rivers due to changes in their habitat, overfishing, urbanization, and pollution. OBJECTIVE To evaluate the effect of sperm extender solutions for short-term storage and cryosolutions for freezing sperm of Prochilodus vimboides. MATERIALS AND METHODS For short-term storage, the sperm was diluted in 0.9% NaCl, 1.2% NaCl, 5% glucose, 5% BTS, or 6% MIII. Sperm motility was evaluated after 0, 24, 48, and 72 h of short-term storage at 4-6 degree C. For cryopreservation, sperm samples were diluted in the same extenders and factorially combined with three cryoprotectants (dimethylsulfoxide, methyl glycol, and ethylene glycol). After thawing, sperm motility and oxidative stress parameters were evaluated. RESULTS Dilution of samples in BTS preserved sperm motility >40% for up to 48 h. Samples cryopreserved in 5% glucose and methylglycol presented higher sperm motility, lower catalase, and lipid peroxidation activities. CONCLUSION Prochilodus vimboides sperm can be cooled for up to 48 h in an extender solution of 5% BTS and cryopreserved in 5% glucose and methyl glycol. doi.org/10.54680/fr22410110612.
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Affiliation(s)
- A V Oliveira
- Agricultural Research Company of Minas Gerais, EPAMIG, Viçosa, MG, Brazil.
| | - E A T Lanna
- Department of Animal Science, Federal University of Viçosa, Viçosa, MG, Brazil
| | - N C Motta
- Department of Animal Science, Federal University of Lavras, Lavras, MG, Brazil
| | - G Souza
- Non-governmental Organization, Piabanha Project, Itaocara, RJ, Brazil
| | - G A Souza
- Department of Forest Engineering, Federal University of Viçosa, MG, Brazil
| | - J M Oliveira
- Department of Animal Biology, Federal University of Viçosa, MG, Brazil
| | - T A Freato
- Meteorological and Climate Research Center Applied to Agriculture, State University of Campinas, Campinas, SP, Brazil
| | - F M Santos
- Department of Animal Biology, Federal University of Viçosa, MG, Brazil
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Silva AVFG, Menezes D, Moreira FRR, Torres OA, Fonseca PLC, Moreira RG, Alves HJ, Alves VR, Amaral TMDR, Coelho AN, Saraiva Duarte JM, da Rocha AV, de Almeida LGP, de Araújo JLF, de Oliveira HS, de Oliveira NJC, Zolini C, de Sousa JH, de Souza EG, de Souza RM, Ferreira LDL, Lehmkuhl Gerber A, Guimarães APDC, Maia PHS, Marim FM, Miguita L, Monteiro CC, Neto TS, Pugêdo FSF, Queiroz DC, Queiroz DNAC, Resende-Moreira LC, Santos FM, Souza EFC, Voloch CM, Vasconcelos AT, de Aguiar RS, de Souza RP. Seroprevalence, Prevalence, and Genomic Surveillance: Monitoring the Initial Phases of the SARS-CoV-2 Pandemic in Betim, Brazil. Front Microbiol 2022; 13:799713. [PMID: 35197952 PMCID: PMC8859412 DOI: 10.3389/fmicb.2022.799713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/07/2022] [Indexed: 11/18/2022] Open
Abstract
The COVID-19 pandemic has created an unprecedented need for epidemiological monitoring using diverse strategies. We conducted a project combining prevalence, seroprevalence, and genomic surveillance approaches to describe the initial pandemic stages in Betim City, Brazil. We collected 3239 subjects in a population-based age-, sex- and neighborhood-stratified, household, prospective; cross-sectional study divided into three surveys 21 days apart sampling the same geographical area. In the first survey, overall prevalence (participants positive in serological or molecular tests) reached 0.46% (90% CI 0.12–0.80%), followed by 2.69% (90% CI 1.88–3.49%) in the second survey and 6.67% (90% CI 5.42–7.92%) in the third. The underreporting reached 11, 19.6, and 20.4 times in each survey. We observed increased odds to test positive in females compared to males (OR 1.88 95% CI 1.25–2.82), while the single best predictor for positivity was ageusia/anosmia (OR 8.12, 95% CI 4.72–13.98). Thirty-five SARS-CoV-2 genomes were sequenced, of which 18 were classified as lineage B.1.1.28, while 17 were B.1.1.33. Multiple independent viral introductions were observed. Integration of multiple epidemiological strategies was able to adequately describe COVID-19 dispersion in the city. Presented results have helped local government authorities to guide pandemic management.
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Affiliation(s)
| | - Diego Menezes
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Paula Luize Camargos Fonseca
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rennan Garcias Moreira
- Centro de Laboratórios Multiusuários, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Hugo José Alves
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | | | - Júlia Maria Saraiva Duarte
- Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | - João Locke Ferreira de Araújo
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Camila Zolini
- Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jôsy Hubner de Sousa
- Programa de Pós-graduação em Biologia Celular, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Rafael Marques de Souza
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciana de Lima Ferreira
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | | | - Fernanda Martins Marim
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lucyene Miguita
- Departamento de Patologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | | | - Daniel Costa Queiroz
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Luciana Cunha Resende-Moreira
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Franciele Martins Santos
- Programa de Pós-graduação em Biologia Celular, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Carolina Moreira Voloch
- Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Renato Santana de Aguiar
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Instituto D'Or de Pesquisa e Ensino (IDOR), Rio de Janeiro, Brazil
| | - Renan Pedra de Souza
- Programa de Pós Graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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7
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Duarte DR, Barroca-Ferreira J, Gonçalves AM, Santos FM, Rocha SM, Pedro AQ, Maia CJ, Passarinha LA. Impact of glycerol feeding profiles on STEAP1 biosynthesis by Komagataella pastoris using a methanol-inducible promoter. Appl Microbiol Biotechnol 2021; 105:4635-4648. [PMID: 34059939 DOI: 10.1007/s00253-021-11367-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 05/11/2021] [Accepted: 05/25/2021] [Indexed: 02/08/2023]
Abstract
Currently, the lack of reliable strategies for the diagnosis and treatment of cancer makes the identification and characterization of new therapeutic targets a pressing matter. Several studies have proposed the Six Transmembrane Epithelial Antigen of the Prostate 1 (STEAP1) as a promising therapeutic target for prostate cancer. Although structural and functional studies may provide deeper insights on the role of STEAP1 in cancer, such techniques require high amounts of purified protein through biotechnological processes. Based on the results presented, this work proposes the application, for the first time, of a fed-batch profile to improve STEAP1 biosynthesis in mini-bioreactor Komagataella pastoris X-33 Mut+ methanol-induced cultures, by evaluating three glycerol feeding profiles-constant, exponential, and gradient-during the pre-induction phase. Interestingly, different glycerol feeding profiles produced differently processed STEAP1. This platform was optimized using a combination of chemical chaperones for ensuring the structural stabilization and appropriate processing of the target protein. The supplementation of culture medium with 6 % (v/v) DMSO and 1 M proline onto a gradient glycerol/constant methanol feeding promoted increased biosynthesis levels of STEAP1 and minimized aggregation events. Deglycosylation assays with peptide N-glycosidase F showed that glycerol constant feed is associated with an N-glycosylated pattern of STEAP1. The biological activity of recombinant STEAP1 was also validated, once the protein enhanced the proliferation of LNCaP and PC3 cancer cells, in comparison with non-tumoral cell cultures. This methodology could be a crucial starting point for large-scale production of active and stable conformation of recombinant human STEAP1. Thus, it could open up new strategies to unveil the structural rearrangement of STEAP1 and to better understand the biological role of the protein in cancer onset and progression.
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Affiliation(s)
- D R Duarte
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6201-506, Covilhã, Portugal.,UCIBIO - Applied Molecular Biosciences Unit, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - J Barroca-Ferreira
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6201-506, Covilhã, Portugal.,UCIBIO - Applied Molecular Biosciences Unit, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - A M Gonçalves
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6201-506, Covilhã, Portugal.,UCIBIO - Applied Molecular Biosciences Unit, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - F M Santos
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6201-506, Covilhã, Portugal.,UCIBIO - Applied Molecular Biosciences Unit, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal.,Laboratório de Fármaco-Toxicologia, UBI Medical, Universidade da Beira Interior, Covilhã, Portugal.,Unidad de Proteomica, Centro Nacional de Biotecnologia, CSIC, Campus de Cantoblanco, Calle Darwin 3, 28049, Madrid, Spain
| | - S M Rocha
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6201-506, Covilhã, Portugal
| | - A Q Pedro
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6201-506, Covilhã, Portugal.,CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193, Aveiro, Portugal
| | - C J Maia
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6201-506, Covilhã, Portugal
| | - L A Passarinha
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, 6201-506, Covilhã, Portugal. .,UCIBIO - Applied Molecular Biosciences Unit, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal. .,Laboratório de Fármaco-Toxicologia, UBI Medical, Universidade da Beira Interior, Covilhã, Portugal.
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Santos FM, Dias RS, de Oliveira MD, Costa ICTA, Fernandes LDS, Pessoa CR, da Matta SLP, Costa VV, Souza DG, da Silva CC, de Paula SO. Animal model of arthritis and myositis induced by the Mayaro virus. PLoS Negl Trop Dis 2019; 13:e0007375. [PMID: 31050676 PMCID: PMC6519846 DOI: 10.1371/journal.pntd.0007375] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 05/15/2019] [Accepted: 04/09/2019] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND The Mayaro virus (MAYV) is an endemic arbovirus in South American countries, where it is responsible for sporadic outbreaks of Mayaro fever. Clinical manifestations include fever, headache, ocular pain, rash, myalgia, and debilitating and persistent polyarthralgia. Understanding the mechanisms associated with MAYV-induced arthritis is of great importance due to the potential for its emergence, urbanization and dispersion to other regions. METHODS 15-day old Balb/c mice were infected by two distinct pathways, below the forelimb and in the rear footpad. Animals were observed for a period of 21 days. During this time, they were monitored every 24 hours for disease signs, such as weight loss and muscle weakness. Histological damage in the muscles and joints was evaluated 3, 7, 10, 15 and 20 days post-infection. The cytokine profile in serum and muscles during MAYV infection was evaluated by flow cytometry at different post-infection times. For pain analysis, the animals were submitted to the von Frey test and titre in different organs was evaluated throughout the study to obtain viral kinetics. FINDINGS Infection by two distinct pathways, below the forelimb and in the rear footpad, resulted in a homogeneous viral spread and the development of acute disease in animals. Clinical signs were observed such as ruffled fur, hunched posture, eye irritation and slight gait alteration. In the physical test, both groups presented loss of resistance, which was associated with histopathological damage, including myositis, arthritis, tenosynovitis and periostitis. The immune response was characterized by a strong inflammatory response mediated by the cytokines TNF-α, IL-6 and INF-γ and chemokine MCP-1, followed by the action of IL-10 and IL-4 cytokines. INTERPRETATION The results showed that Balb/c mice represent a promising model to study mechanisms involved in MAYV pathogenesis and for future antiviral testing.
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Affiliation(s)
- Franciele Martins Santos
- Molecular Immunovirology Laboratory, Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Roberto Sousa Dias
- Molecular Immunovirology Laboratory, Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Michelle Dias de Oliveira
- Molecular Immunovirology Laboratory, Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | | | - Luciana de Souza Fernandes
- Molecular Immunovirology Laboratory, Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Carine Ribeiro Pessoa
- Molecular Immunovirology Laboratory, Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Sérgio Luis Pinto da Matta
- Structural Biology Laboratory, Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | | | - Danielle G. Souza
- Department of Microbiology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Sérgio Oliveira de Paula
- Molecular Immunovirology Laboratory, Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
- * E-mail:
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9
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Rocha MN, Duarte MM, Mansur SB, Silva BDME, Pereira TN, Adelino TÉR, Giovanetti M, Alcantara LCJ, Santos FM, Costa VRDM, Teixeira MM, Iani FCDM, Costa VV, Moreira LA. Pluripotency of Wolbachia against Arboviruses: the case of yellow fever. Gates Open Res 2019; 3:161. [PMID: 31259313 PMCID: PMC6561079 DOI: 10.12688/gatesopenres.12903.2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2019] [Indexed: 12/16/2022] Open
Abstract
Background: Yellow fever outbreaks have re-emerged in Brazil during 2016-18, with mortality rates up to 30%. Although urban transmission has not been reported since 1942, the risk of re-urbanization of yellow fever is significant, as Aedes aegypti is present in most tropical and sub-tropical cities in the World and still remains the main vector of urban YFV. Although the YFV vaccine is safe and effective, it does not always reach populations at greatest risk of infection and there is an acknowledged global shortage of vaccine supply. The introgression of Wolbachia bacteria into Ae. aegypti mosquito populations is being trialed in several countries ( www.worldmosquito.org) as a biocontrol method against dengue, Zika and chikungunya. Here, we studied the ability of Wolbachia to reduce the transmission potential of Ae. aegypti mosquitoes for Yellow fever virus (YFV). Methods: Two recently isolated YFV (primate and human) were used to challenge field-derived wild-type and Wolbachia-infected ( wMel +) Ae. aegypti mosquitoes. The YFV infection status was followed for 7, 14 and 21 days post-oral feeding (dpf). The YFV transmission potential of mosquitoes was evaluated via nano-injection of saliva into uninfected mosquitoes or by inoculation in mice. Results: We found that Wolbachia was able to significantly reduce the prevalence of mosquitoes with YFV infected heads and thoraces for both viral isolates. Furthermore, analyses of mosquito saliva, through indirect injection into naïve mosquitoes or via interferon-deficient mouse model, indicated Wolbachia was associated with profound reduction in the YFV transmission potential of mosquitoes (14dpf). Conclusions: Our results suggest that Wolbachia introgression could be used as a complementary strategy for prevention of urban yellow fever transmission, along with the human vaccination program.
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Affiliation(s)
| | - Myrian Morato Duarte
- Serviço de Virologia e Riquetsioses, Fundação Ezequiel Dias-LACEN, Belo Horizonte, MG, Brazil
| | | | | | | | | | - Marta Giovanetti
- Laboratório de Flavivírus, IOC, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
- Laboratório de Genética Celular e Molecular, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luis Carlos Junior Alcantara
- Laboratório de Flavivírus, IOC, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
- Laboratório de Genética Celular e Molecular, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Franciele Martins Santos
- Centro de Pesquisa e Desenvolvimento de Fármacos, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Research Group in Arboviral Diseases, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Victor Rodrigues de Melo Costa
- Centro de Pesquisa e Desenvolvimento de Fármacos, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Research Group in Arboviral Diseases, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Mauro Martins Teixeira
- Centro de Pesquisa e Desenvolvimento de Fármacos, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Immunopharmacology Lab, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Felipe Campos de Melo Iani
- Serviço de Virologia e Riquetsioses, Fundação Ezequiel Dias-LACEN, Belo Horizonte, MG, Brazil
- Laboratório de Genética Celular e Molecular, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Vivian Vasconcelos Costa
- Centro de Pesquisa e Desenvolvimento de Fármacos, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Research Group in Arboviral Diseases, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
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10
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Rocha MN, Duarte MM, Mansur SB, Silva BDME, Pereira TN, Adelino TÉR, Giovanetti M, Alcantara LCJ, Santos FM, Costa VRDM, Teixeira MM, Iani FCDM, Costa VV, Moreira LA. Pluripotency of Wolbachia against Arbovirus: the case of yellow fever. Gates Open Res 2019. [DOI: 10.12688/gatesopenres.12903.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Yellow fever outbreaks have re-emerged in Brazil during 2016-18, with mortality rates up to 30%. Although urban transmission has not been reported since 1942, the risk of re-urbanization of yellow fever is significant, as Aedes aegypti is present in most tropical and sub-tropical cities in the World and used to be the main vector in the past. The introgression of Wolbachia bacteria into Ae. aegypti mosquito populations is being trialed in several countries (www.worldmosquito.org)as a biocontrol method against dengue, Zika and chikungunya. Here, we studied the ability of Wolbachia to reduce the transmission potential of Ae. aegypti mosquitoes for yellow fever virus (YFV). Methods: Two recently isolated YFV (primate and human) were used to challenge field-derived wild-type and Wolbachia-infected (wMel +) Ae. aegypti mosquitoes. The YFV infection status was followed for 7, 14 and 21 days post-oral feeding (dpf). The YFV transmission potential of mosquitoes was evaluated via nano-injection of saliva into uninfected mosquitoes or by inoculation in mice. Results: We found that Wolbachia was able to significantly reduce the prevalence of mosquitoes with YFV infected heads and thoraces for both viral isolates. Furthermore, analyses of mosquito saliva, through indirect injection into naïve mosquitoes or via interferon-deficient mouse model, indicated Wolbachia was associated with profound reduction in the YFV transmission potential of mosquitoes (14dpf). Conclusions: Our results suggest that Wolbachia introgression could be used as a complementary strategy for prevention of urban yellow fever transmission, along with the human vaccination program.
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Oliveira ME, Santos FM, Bonifácio RP, Freitas MF, Martins DO, Chacur M. Low level laser therapy alters satellite glial cell expression and reverses nociceptive behavior in rats with neuropathic pain. Photochem Photobiol Sci 2018; 16:547-554. [PMID: 28125108 DOI: 10.1039/c6pp00360e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Nerve injury often results in persistent or chronic neuropathic pain characterized by spontaneous burning pain accompanied by allodynia and hyperalgesia. Low level laser therapy (LLLT) is a noninvasive method that has proved to be clinically effective in reducing pain sensitivity and consequently in improving the quality of life. Here we examined the effects of LLLT on pain sensitivity induced by chronic constriction injury (CCI) in rats. CCI was performed on adult male rats, subjected thereafter to 10 sessions of LLLT, every other day, and starting 14 days after CCI. Over the treatment period, the animals were evaluated for nociception using behavioral tests, such as allodynia, thermal and mechanical hyperalgesia. Following the sessions, we observed the involvement of satellite glial cells in the dorsal root ganglion (DRG) using immunoblotting and immunofluorescence approaches. In addition we analyzed the expression levels of interleukin 1 (IL-1β) and fractalkine (FKN) after the same stimulus. RESULTS LLLT induced an early reduction (starting at the second session; p ≤ 0.001) of the mechanical and thermal hyperalgesia and allodynia in CCI rats, which persisted until the last session. Regarding cellular changes, we observed a decrease of GFAP (50%; p ≤ 0.001) expression after LLLT in the ipsilateral DRG when compared with the naive group. We also observed a significant increase of pro-inflammatory cytokines after CCI, whereas LLLT dramatically inhibited the overexpression of these proteins. CONCLUSIONS These data provide evidence that LLLT reverses CCI-induced behavioral hypersensitivity, reduces glial cell activation in the DRG and decreases pro-inflammatory cytokines; we suggest that this involvement of glial cells can be one potential mechanism in such an effect.
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Affiliation(s)
- M E Oliveira
- Department of Anatomy, Laboratory of Functional Neuroanatomy of Pain, SP, Brazil.
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12
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Martins DO, Santos FM, Britto LRG, Lemos JBD, Chacur M. Neurochemical effects of photobiostimulation in the trigeminal ganglion after inferior alveolar nerve injury. J BIOL REG HOMEOS AG 2017; 31:147-152. [PMID: 28337884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Orofacial pain is associated with peripheral and central sensitization of trigeminal nociceptive neurons. Nerve injury results in release of chemical mediators that contribute to persistent pain conditions. The activation of the transient receptor potential vanilloid 1 (TRPV1), promotes release of calcitonin gene-related peptide (CGRP) and substance P (SP) from trigeminal nerve terminals. CGRP and SP contribute to the development of peripheral hyperalgesia. The expression of SP and CGRP by primary afferent neurons is rapidly increased in response to peripheral inflammation. CGRP receptor activation promotes activation of AMPA receptors, leading to increased firing of neurons which is reflected as central sensitization. In this study we investigated whether inferior alveolar nerve (IAN) injury influences AMPA receptors, CGRP, SP and TRPV1 expression in the trigeminal ganglion (TG). The relative expression of the protein of interest from naive rats was compared to those from injured rats and animals that received low level laser therapy (LLLT). IAN-injury did not change expression of GluA1, GluA2 and CGRP, but increased the expression of TRPV1 and SP. LLLT increases GluA1 and GluA2 expression and decreases TVPV1, SP and CGRP. These results, together with previous behavioral data, suggest that IAN-injury induced changes in the proteins analyzed, which could impact on nociceptive threshold. These data may help to understand the molecular mechanisms of pain sensitization in the TG.
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Affiliation(s)
- D O Martins
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paula, SP, Brazil
| | - F M Santos
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paula, SP, Brazil
- University Nove de Julho, São Paulo, SP, Brazil
| | - L R G Britto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - J B D Lemos
- School of Dentistry, University of São Paulo, São Paulo, SP, Brazil
| | - M Chacur
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paula, SP, Brazil
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13
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Oliveira VM, Hamawaki OT, Nogueira AO, Sousa LB, Santos FM, Hamawaki RL. Selection for wide adaptability and high phenotypic stability of Brazilian soybean genotypes. Genet Mol Res 2016; 15:gmr7843. [PMID: 27051037 DOI: 10.4238/gmr.15017843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Advances in genetic enhancement techniques have led to an increase in soybean production. Thus, soybean is currently one the most economically important cultured species worldwide. The objectives of the present study were to study the interaction of soybean genotypes per environment in terms of grain productivity and to evaluate their phenotypic adaptability and stability, with the final aim of selecting lineages with high productivity, wide adaptability, and high stability. Seven soybean genotypes, consisting of five lineages developed by the soybean genetic enhancement program of the Universidade Federal de Uberlândia (Brazil) and two controls, were evaluated during several annual cycles in seven different environments. A randomized complete block design (RCBD) with three replicates was adopted in each site. This study followed the methodology proposed by Eberhart and Russel and Lin and Binns, with modifications by Carneiro, and the AMMI (additive main effects and multiplicative interaction model) analysis. The average productivity of soybean cultivars in the trials was 2739.26 kg/ha. The L01V13 genotype and the UFUS Guarani cultivar had wide adaptation according to the methodology proposed by Eberhart and Russel and Lin and Binns, with modifications by Carneiro. When analyzed with the AMMI model, the UFUS Guarani cultivar showed high stability. In general, the methodologies studied are complementary and, when used together, increase the reliability of the classification, providing support for the use of specific soybean cultivars in different environments.
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Affiliation(s)
- V M Oliveira
- Universidade Estadual de Goiás, Palmeiras de Goiás, GO, Brasil
| | - O T Hamawaki
- Instituto de Ciências Agrárias, Universidade Federal de Uberlândia, Uberlândia, MG, Brasil
| | - A O Nogueira
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, MG, Brasil
| | - L B Sousa
- Instituto de Ciências Agrárias, Universidade Federal de Uberlândia, Uberlândia, MG, Brasil
| | | | - R L Hamawaki
- Universidade Federal de Uberlândia, Uberlândia, MG, Brasil
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14
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Gomes MB, Tannus LRM, Cobas RA, Matheus ASM, Dualib P, Zucatti AT, Cani C, Guedes AD, Santos FM, Sepulveda J, Tolentino M, Façanha MC, Faria ACRA, Lavigne S, Montenegro AP, Rodacki M, de Fatima Guedes M, Szundy R, Cordeiro MM, Santos PTS, Negrato CA. Determinants of self-monitoring of blood glucose in patients with Type 1 diabetes: a multi-centre study in Brazil. Diabet Med 2013; 30:1255-62. [PMID: 23721292 DOI: 10.1111/dme.12236] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 03/26/2013] [Accepted: 05/15/2013] [Indexed: 11/27/2022]
Abstract
AIM The aim of this study was to determine the relationship between the daily frequency of self-monitoring of blood glucose and glycaemic control, demographic and socio-economic status in patients with Type 1 diabetes under routine clinical care in Brazil. METHODS This was a cross-sectional, multi-centre study conducted between December 2008 and December 2010 in 28 public clinics in 20 Brazilian cities. The data were obtained from 3176 patients, aged 22 ± 11.8 years, of whom 56.3% were female and 57.4% were Caucasian. The mean time since diabetes diagnosis was 11.7 ± 8.1 years. RESULTS The prevalence of self-monitoring of blood glucose was 88.5%. There was a significant increase in self-monitoring frequency associated with female gender, lower ages, more intensive diabetes management and higher socio-economic status. A correlation between HbA(1c) levels and the daily frequency of self-monitoring was observed (r(s) = -0.13; P = 0.001). The mean HbA1c levels were related to the daily frequency of self-monitoring (P < 0.001) without additional benefit to patients who performed self-monitoring more than four times daily (9.2, 11.2, 10.2,15.2 and 15% for one, two, three, four, five or more self-monitoring tests daily, respectively; P < 0.0001). CONCLUSIONS The majority of our patients (88.5%) performed three or more self-monitoring tests daily, with more frequent testing reported by females, younger patients, those on intensive insulin regimens and of higher socio-economic status. No additional benefit was found in patients who performed self-monitoring more than four times daily. The diabetes care team must improve patients' education regarding self-monitoring of blood glucose and its benefits.
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Affiliation(s)
- M B Gomes
- Department of Internal Medicine, Diabetes Unit, State University Hospital of Rio de Janeiro, São Paulo, Brazil
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15
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Elsner VR, Lovatel GA, Bertoldi K, Vanzella C, Santos FM, Spindler C, de Almeida EF, Nardin P, Siqueira IR. Effect of different exercise protocols on histone acetyltransferases and histone deacetylases activities in rat hippocampus. Neuroscience 2011; 192:580-7. [PMID: 21745541 DOI: 10.1016/j.neuroscience.2011.06.066] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 06/23/2011] [Accepted: 06/23/2011] [Indexed: 11/25/2022]
Abstract
Regular and moderate exercise has been considered an interesting neuroprotective strategy. Although the mechanisms by which physical exercise alters brain function are not clear, it appears that neuroprotective properties of exercise could be related to chromatin remodeling, specifically the induction of histone acetylation through modulation of histone deacetylases (HDAC) and histone acetyltransferases (HAT) activities. The aim of the present work was to investigate the effect of exercise on HDAC and HAT activities in rat whole hippocampus at different times after treadmill. Adult male Wistar rats were assigned to non-exercised (sedentary) and exercised groups on different protocols: a single session of treadmill exercise (running for 20 min) and a chronic treadmill protocol (running once daily for 20 min, for 2 weeks). The effects of exercise on HDAC and HAT activities were measured immediately, 1 h and 18 h after the single session or the last training session of chronic treadmill exercise using specific assay kits. The single session of treadmill exercise reduced HDAC activity, increased HAT activity and increased the HAT/HDAC balance in rat hippocampus immediately and 1 h after exercise, an indicative of histone hyperacetylation status. The acetylation balance was also influenced by the circadian rhythm, since the HAT/HDAC ratio was significantly decreased in the early morning in all groups when compared to the afternoon. These data support the hypothesis that exercise neuroprotective effects may be related, at least in part, to acetylation levels through modulation of HAT and HDAC activities. We also demonstrated circadian changes in the HAT and HDAC activities and, consequently, in the acetylation levels.
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Affiliation(s)
- V R Elsner
- Programa de Pós-Graduação em Ciências Biológicas: Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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16
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Pitanga TN, Santos FM, Meirelles T, Dutra AAN, Carvalho LCP. L 003 The role Monocyte Derived Microparticles in the Process of Atherosclerosis: Oxidative Effects on LDL and HDL. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71769-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Santos FM, Rodrigues RGS, Trindade-Filho EM. [Physical exercise versus exercise program using electrical stimulation devices for home use]. Rev Saude Publica 2008; 42:117-22. [PMID: 18200348 DOI: 10.1590/s0034-89102008000100015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2006] [Accepted: 09/10/2007] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To evaluate the effects of electrical muscle stimulation with devices for home use on neuromuscular conditioning. METHODS The study sample comprised 20 sedentary, right-handed, voluntary women aged from 18 to 25 years in the city of Maceió, Northeastern Brazil, in 2006. Subjects were randomly divided into two groups: group A included women who underwent muscle stimulation using commercial electrical devices; group B included those women who performed physical activities with loads. The training program for both groups consisted of two weekly sessions for two months, in a total of 16 sessions. Comparisons of body weight, cirtometry, fleximetry, and muscle strength before and after exercise were determined using the paired t-test. For the comparisons between both groups, Student's t-test was used and a 5% significance level was adopted. RESULTS Muscle strength subjectively assessed before and after each intervention was increased in both groups. Significant increases in muscle mass and strength were seen only in those subjects who performed voluntary physical activity. Resisted knee flexion and extension exercises effectively increased muscle mass and strength when compared to electrical stimulation at 87 Hz which did not produce a similar effect. CONCLUSIONS The study results showed that electrical stimulation devices for passive physical exercising commercially available are less effective than voluntary physical exercise.
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Affiliation(s)
- F M Santos
- Faculdade de Fisioterapia, Universidade de Ciências da Saúde de Alagoas, Maceió, AL, Brasil
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18
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Gamelas JAF, Santos FM, Felix V, Cavaleiro AMV, de Matos Gomes E, Belsley M, Drew MGB. Novel charge transfer supramolecular assemblies with Keggin anions and 2-amino-5-nitropyridine. Dalton Trans 2006:1197-203. [PMID: 16482357 DOI: 10.1039/b508986g] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several novel compounds with the non-linear optical chromophore 2-amino-5-nitropyridine (2A5NP) and Keggin polyoxoanions (alpha-isomers), having the general formula (2A5NP)(m)H(n)[XM12O40].xH2O, M = Mo, W, were synthesised. Compounds were obtained with X = P, n = 3, m = 3 and 4 and X = Si, n = m = 4 (x = 2-6). Thus, for each of the anions [PMo12O40]3- and [PW12O40]3- two different compounds were obtained, with the same anion and organic counterpart but with a different stoichiometric ratio. These presented different charge transfer properties and thermal stability. All compounds were characterised by spectroscopic and analytical techniques. The single crystal X-ray diffraction structure of (2A5NP)4H3[PMo12O40].2.5H2O.0.5C2H5OH showed that the water solvent molecules and the organic chromophores are assembled via infinite one-dimensional chains of hydrogen bonds with formation of open channels, which accommodate [PMo12O40]3- and ethanol solvent molecules.
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Affiliation(s)
- J A F Gamelas
- Department of Chemistry, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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Queiroz AP, Santos FM, Sassaroli A, Hársi CM, Monezi TA, Mehnert DU. Electropositive filter membrane as an alternative for the elimination of PCR inhibitors from sewage and water samples. Appl Environ Microbiol 2001; 67:4614-8. [PMID: 11571164 PMCID: PMC93211 DOI: 10.1128/aem.67.10.4614-4618.2001] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PCR is the best method for the detection of enteric viruses present at low concentrations in environmental samples. However, some organic and inorganic compounds present in these samples can interfere in the reaction. Many of these substances are cytotoxic, too. The ZP60S filter membranes used in addition to fluorpentane treatment are quite efficient for virus concentration and simultaneous elimination of cytotoxicity from environmental samples. In this study, both procedures were used to promote the elimination of reverse transcriptase PCR (RT-PCR) inhibitors from sewage and sewage-polluted creek water. Samples were subjected separately to each of the following procedures: filtration through electropositive filter membranes (ZP60S), organic extraction with Vertrel XF, and filtration through ZP60S followed by organic extraction. Afterwards, aliquots were experimentally inoculated with rotavirus SA-11 RNA and subjected to RT-seminested PCR for amplification of the VP7 gene. Results showed that the ZP60S membranes efficiently eliminated the RT-PCR inhibitors from water samples. The sample processing method was also applied to 31 in natural sewage and creek water samples for detection of naturally occurring rotavirus. A duplex seminested PCR was used for the quick detection of couples of the four rotavirus genotypes (G1 to G4). Eight samples (25.8%) were positive, and rotavirus sequences were not detected in 23 (74.2%). Results were confirmed by direct immunoperoxidase method. In summary, the use of electropositive filter membrane is appropriate for the elimination of substances that can interfere with RT-PCR, obviating additional sample purification methods.
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Affiliation(s)
- A P Queiroz
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, 05508-900 São Paulo, São Paulo, Brazil
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Queiroz AP, Santos FM, Hársi CM, Candeias JM, Monezi TA, Mehnert DU. Factors that can interfere with virus concentration from wastewater when using Zeta Plus 60S filter membranes. Mem Inst Oswaldo Cruz 2000; 95:713-6. [PMID: 10998222 DOI: 10.1590/s0074-02762000000500018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Zeta plus filter membranes (ZP60S) have been shown to be efficient for rotavirus concentration from wastewater and for the reduction of cytotoxicity for cell cultures. Recently a variability in both properties was observed. In view of the low costs and the high virus recovery rates obtained in the past, we re-evaluated the application of ZP60S filter membranes for virus concentration from environmental samples. Some factors that could interfere with the concentration strategy using ZP60S were also considered and assessed including the type of water to be filtered and the possible release of toxic substances from the membrane matrix during filtration.
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Affiliation(s)
- A P Queiroz
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, 05508-900, Brasil
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Figueiredo JM, Câmara CA, Amarante EG, Miranda AL, Santos FM, Rodrigues CR, Fraga CA, Barreiro EJ. Design and synthesis of novel potent antinociceptive agents: methyl-imidazolyl N-acylhydrazone derivatives. Bioorg Med Chem 2000; 8:2243-8. [PMID: 11026537 DOI: 10.1016/s0968-0896(00)00152-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
This paper describes recent results of design, synthesis and pharmacological evaluation of new N-heterocyclic functionalized N-acylhydrazone compounds, belonging to the 2-methyl-imidazolyl-3-acylhydrazone class (4a-e). These compounds were planned by applying the molecular simplification strategy to propose the structural modifications on the previously described functionalized imidazo [1,2-a]pyridine 3-acylhydrazone series (2), which presented an important analgesic profile. This new series (4) was synthesized in order to investigate the possible pharmacophoric contribution of the N-heteroaromatic ring and N-acylhydrazone moieties to the analgesic activity. Compounds 4a-b are the most potent antinociceptive agents from this series.
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Affiliation(s)
- J M Figueiredo
- Laboratorio de Avaliação e Síntese de Substâncias Bioativas (LASSBio), Faculdade de Farmácia, Rio de Janeiro, RJ, Brazil
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Passos LC, Lopes AA, Esteves FP, Santos FM. [Difference of hospital mortality of acute myocardial infarction between men and women treated with primary angioplasty]. Arq Bras Cardiol 1998; 71:587-90. [PMID: 10347934 DOI: 10.1590/s0066-782x1998001000005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To compare the in-hospital case-fatality rate of men and women submitted to percutaneous transluminal coronary angioplasty (PTCA) as a strategy of reperfusion in acute myocardial infarction (MI). METHODS A retrospective cohort study based on information abstracted from medical records of MI patients admitted to a hospital where PTCA is used as the preferred method for early myocardial reperfusion. A total of 83 patients, 35 (42%) women and 48 (58%) men, who met the criteria for early myocardial reperfusion was included in the analysis. RESULTS The mean age of women was higher than that of men (66 +/- 10 vs 58 +/- 11 years; p < 0.001). The women also had a higher frequency of diabetes mellitus (37.1% vs 6.4%; p < 0.001). Despite these differences in age and in the frequency of diabetes mellitus, the percentage of patients in whom the PTCA was considered successful was similar between men (83.3%) and women (82.3%). The case-fatality rate was also similar between men and women; 14.6% and 14.3%, respectively. CONCLUSION The possibility that the excess risk of death in women with MI may be reduced and even eliminated with the use of PTCA, supports to the need for the development of a clinical trial to assess this question.
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Schoendorff J, Alvarez-Sala JL, Santos FM, Espinós D. [Pseudocystic pulmonary images]. Rev Clin Esp 1996; 196:127-8. [PMID: 8685486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- J Schoendorff
- Servicios de Medicina Interna, Hospital La Zarzuela, Madrid
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Santos FM, Alvarez RS, Alonso CH, Servet JM, Real AA. [Digestive hemorrhages in shock]. Rev Clin Esp 1975; 137:71-5. [PMID: 1079621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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