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Gonçalves AP, Almeida LT, de Rezende IM, Fradico JRB, Pereira LS, Ramalho DB, Pascoal Xavier MA, Calzavara Silva CE, Monath TP, LaBeaud AD, Drumond BP, Campi-Azevedo AC, Martins-Filho OA, Teixeira-Carvalho A, Alves PA. Evaluation of humoral immune response after yellow fever infection: an observational study on patients from the 2017-2018 sylvatic outbreak in Brazil. Microbiol Spectr 2024; 12:e0370323. [PMID: 38511952 PMCID: PMC11064539 DOI: 10.1128/spectrum.03703-23] [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: 10/17/2023] [Accepted: 03/08/2024] [Indexed: 03/22/2024] Open
Abstract
Between 2016 and 2018, Brazil experienced major sylvatic yellow fever (YF) outbreaks that caused hundreds of casualties, with Minas Gerais (MG) being the most affected state. These outbreaks provided a unique opportunity to assess the immune response triggered by the wild-type (WT) yellow fever virus (YFV) in humans. The plaque reduction neutralization test (PRNT) is currently the standard method to assess the humoral immune response to YFV by measuring neutralizing antibodies (nAbs). The present study aimed to evaluate the humoral immune response of patients from the 2017-2018 sylvatic YF outbreak in MG with different disease outcomes by using PRNTs with a WT YFV strain, isolated from the 2017-2018 outbreak, and a vaccine YFV strain. Samples from naturally infected YF patients were tested, in comparison with healthy vaccinees. Results showed that both groups presented different levels of nAb against the WT and vaccine strains, and the levels of neutralization against the strains varied homotypically and heterotypically. Results based on the geometric mean titers (GMTs) suggest that the humoral immune response after a natural infection of YFV can reach higher levels than that induced by vaccination (GMT of patients against WT YFV compared to GMT of vaccinees, P < 0.0001). These findings suggest that the humoral immune responses triggered by the vaccine and WT strains of YFV are different, possibly due to genetic and antigenic differences between these viruses. Therefore, current means of assessing the immune response in naturally infected YF individuals and immunological surveillance methods in areas with intense viral circulation may need to be updated.IMPORTANCEYellow fever is a deadly febrile disease caused by the YFV. Despite the existence of effective vaccines, this disease still represents a public health concern worldwide. Much is known about the immune response against the vaccine strains of the YFV, but recent studies have shown that it differs from that induced by WT strains. The extent of this difference and the mechanisms behind it are still unclear. Thus, studies aimed to better understand the immune response against this virus are relevant and necessary. The present study evaluated levels of neutralizing antibodies of yellow fever patients from recent outbreaks in Brazil, in comparison with healthy vaccinees, using plaque reduction neutralization tests with WT and vaccine YFV strains. Results showed that the humoral immune response in naturally infected patients was higher than that induced by vaccination, thus providing new insights into the immune response triggered against these viruses.
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Affiliation(s)
| | - Letícia Trindade Almeida
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Minas Gerais, Brazil
| | - Izabela Maurício de Rezende
- Department of Pediatrics, Infectious Disease Division, Stanford University School of Medicine, Stanford, California, USA
| | | | - Leonardo Soares Pereira
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Hospital Eduardo de Menezes (HEM), Fundação Hospitalar do Estado de Minas Gerais (FHEMIG), Belo Horizonte, Minas Gerais, Brazil
| | - Dario Brock Ramalho
- Hospital Eduardo de Menezes (HEM), Fundação Hospitalar do Estado de Minas Gerais (FHEMIG), Belo Horizonte, Minas Gerais, Brazil
| | - Marcelo Antônio Pascoal Xavier
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Minas Gerais, Brazil
- Departamento de Anatomia Patológica e Medicina Legal, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | | | - Angelle Desiree LaBeaud
- Department of Pediatrics, Infectious Disease Division, Stanford University School of Medicine, Stanford, California, USA
| | - Betania Paiva Drumond
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | | | - Andréa Teixeira-Carvalho
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Minas Gerais, Brazil
| | - Pedro Augusto Alves
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Minas Gerais, Brazil
| | - Grupo de Estudos de Pesquisa e Resposta em Febre Amarela do Estado de Minas Gerais
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Minas Gerais, Brazil
- Department of Pediatrics, Infectious Disease Division, Stanford University School of Medicine, Stanford, California, USA
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Hospital Eduardo de Menezes (HEM), Fundação Hospitalar do Estado de Minas Gerais (FHEMIG), Belo Horizonte, Minas Gerais, Brazil
- Departamento de Anatomia Patológica e Medicina Legal, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Crozet BioPharma LLC, Lexington, Massachusetts, USA
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da Silva Menegatto MB, Ferraz AC, Lima RLS, Almeida LT, de Brito RCF, Reis AB, Carneiro CM, de Lima WG, de Mello Silva B, de Magalhães JC, Magalhães CLDB. Oropouche virus infection induces ROS production and oxidative stress in liver and spleen of mice. J Gen Virol 2023; 104. [PMID: 37192107 DOI: 10.1099/jgv.0.001857] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023] Open
Abstract
Oropouche virus (OROV) is the aetiological agent of Oropouche fever, the symptoms of which are common to most arboviruses, such as fever, headache, malaise, nausea and vomiting. More than half a million people have been infected with OROV since its isolation in 1955. Although Oropouche fever is classified as a neglected and emerging disease, to date, there are no antiviral drugs or vaccines available against the infection and little is known about its pathogenicity. Therefore, it is essential to elucidate the possible mechanisms involved in its pathogenesis. Since oxidative stress plays a pivotal role in the progression of various viral diseases, in this study, redox homeostasis in the target organs of OROV infection was evaluated using an animal model. Infected BALB/c mice exhibited reduced weight gain, splenomegaly, leukopenia, thrombocytopenia, anaemia, development of anti-OROV neutralizing antibodies, increased liver transaminases, and serum levels of pro-inflammatory cytokines tumour necrosis factor (TNF-α) and interferon-γ (IFN-γ). The OROV genome and infectious particles were detected in the liver and spleen of infected animals, with liver inflammation and an increase in the number and total area of lymphoid nodules in the spleen. In relation to redox homeostasis in the liver and spleen, infection led to an increase in reactive oxygen species (ROS) levels, increased oxidative stress biomarkers malondialdehyde (MDA) and carbonyl protein, and decreased activity of the antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT). Taken together, these results help elucidate some important aspects of OROV infection that may contribute to the pathogenesis of Oropouche.
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Affiliation(s)
- Marília Bueno da Silva Menegatto
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Ariane Coelho Ferraz
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Rafaela Lameira Souza Lima
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Letícia Trindade Almeida
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Instituto de Pesquisa Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Rory Cristiane Fortes de Brito
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Alexandre Barbosa Reis
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Cláudia Martins Carneiro
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Programa de Pós Graduação em Biotecnologia, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Wanderson Geraldo de Lima
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Minas Gerais, Brazil
| | - Breno de Mello Silva
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Programa de Pós Graduação em Biotecnologia, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Minas Gerais, Brazil
| | - José Carlos de Magalhães
- Programa de Pós Graduação em Biotecnologia, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Departamento de Química, Biotecnologia e Engenharia de Bioprocessos, Universidade Federal de São João del-Rei, Ouro Branco, Minas Gerais, Brazil
| | - Cintia Lopes de Brito Magalhães
- Programa de Pós Graduação em Ciências Biológicas, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Programa de Pós Graduação em Biotecnologia, Núcleo de Pesquisa em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Minas Gerais, Brazil
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Almeida LT, Gonçalves AB, Franco-Luiz APM, Silva TBDS, Alves PA, Monte-Neto RLD. Molecular detection of omicron SARS-CoV-2 variant is achieved by RT-LAMP despite genomic mutations. Mem Inst Oswaldo Cruz 2022; 117:e220050. [PMID: 35766650 PMCID: PMC9219828 DOI: 10.1590/0074-02760220050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/19/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus (SARS-CoV-2) omicron variant was first detected in South Africa in November 2021. Since then, the number of cases due to this variant increases enormously every day in different parts of the world. Mutations within omicron genome may impair the molecular detection resulting in false negative results during Coronavirus disease 19 (COVID-19) diagnosis. OBJECTIVES To verify if colorimetric reverse transcription loop-mediated isothermal amplification (RT-LAMP) targeting N and E genes would work efficiently to detect omicron SARS-CoV-2 variant and its sub-lineages. METHODS SARS-CoV-2 reverse transcription quantitative polymerase chain reaction (RT-qPCR) positive samples were sequenced by next generation DNA sequencing. The consensus sequences generated were submitted to Pangolin tool for SARS-CoV-2 lineage identification. RT-LAMP reactions were performed at 65ºC/30 min targeting N and E. FINDINGS SARS-CoV-2 omicron can be detected by RT-LAMP targeting N and E genes despite the genomic mutation of this more transmissible lineage. Omicron SARS-CoV-2 sub-lineages were tested and efficiently detected by RT-LAMP. We demonstrated that this test is very sensitive in detecting omicron variant, with LoD as low as 0.4 copies/µL. MAIN CONCLUSIONS Molecular detection of omicron SARS-CoV-2 variant and its sub-lineages can be achieved by RT-LAMP despite the genomic mutations as a very sensitive surveillance tool for COVID-19 molecular diagnosis.
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Affiliation(s)
- Letícia Trindade Almeida
- Fundação Oswaldo Cruz-Fiocruz, Instituto René Rachou, Biotecnologia Aplicada a Patógenos, Belo Horizonte, MG, Brasil
| | - Amanda Bonoto Gonçalves
- Fundação Oswaldo Cruz-Fiocruz, Instituto René Rachou, Biotecnologia Aplicada a Patógenos, Belo Horizonte, MG, Brasil
| | - Ana Paula Moreira Franco-Luiz
- Fundação Oswaldo Cruz-Fiocruz, Instituto René Rachou, Biotecnologia Aplicada a Patógenos, Belo Horizonte, MG, Brasil
| | | | - Pedro Augusto Alves
- Fundação Oswaldo Cruz-Fiocruz, Instituto René Rachou, Imunologia de Doenças Virais, Belo Horizonte, MG, Brasil
| | - Rubens Lima do Monte-Neto
- Fundação Oswaldo Cruz-Fiocruz, Instituto René Rachou, Biotecnologia Aplicada a Patógenos, Belo Horizonte, MG, Brasil
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4
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Pereira SH, Almeida LT, Ferraz AC, Ladeira MDS, Ladeira LO, Magalhães CLDB, Silva BDM. Antioxidant and antiviral activity of fullerol against Zika virus. Acta Trop 2021; 224:106135. [PMID: 34536367 DOI: 10.1016/j.actatropica.2021.106135] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 08/05/2021] [Accepted: 09/06/2021] [Indexed: 11/17/2022]
Abstract
Neglected for years, Zika virus (ZIKV) has become one of the most relevant arboviruses in current public health. The recent Zika fever epidemic in the Americas generated a worldwide alert due to the association with diseases such as Guillain-Barré syndrome and congenital syndromes. Among the pathogenesis of ZIKV, recent studies suggest that oxidative stress plays an important role during infection and that compounds capable of modulating oxidative stress are promising as therapeutics. Furthermore, so far there are no specific and efficient antiviral drug or vaccine available against ZIKV. Thus, fullerol was evaluated in the context of infection by ZIKV, since it is a carbon nanomaterial known for its potent antioxidant action. In this study, fullerol did not alter cell viability at the concentrations tested, proving to be inert, beyond to presenting high antioxidant power at low concentrations. ZIKV infection of human glioblastoma increased the production of reactive oxygen species by 60% and modulated the Nrf-2 pathway activity negatively. After treatment with fullerol, both conditions were restored to baseline levels. Additionally, fullerol was able to reduce viral production by up to 90%. Therefore, our results suggest that fullerol as a promising candidate in the control of ZIKV infections, presenting both antioxidant and antiviral action.
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Affiliation(s)
- Samille Henriques Pereira
- Laboratório de Biologia e Tecnologia de Micro-organismos, Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Brazil; Programa de Pós Graduação em Biotecnologia, Universidade Federal de Ouro Preto, Brazil
| | - Letícia Trindade Almeida
- Laboratório de Biologia e Tecnologia de Micro-organismos, Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Brazil; Programa de Pós Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Brazil
| | - Ariane Coelho Ferraz
- Laboratório de Biologia e Tecnologia de Micro-organismos, Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Brazil; Programa de Pós Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Brazil
| | | | | | - Cíntia Lopes de Brito Magalhães
- Laboratório de Biologia e Tecnologia de Micro-organismos, Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Brazil; Programa de Pós Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Brazil
| | - Breno de Mello Silva
- Laboratório de Biologia e Tecnologia de Micro-organismos, Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Brazil; Programa de Pós Graduação em Biotecnologia, Universidade Federal de Ouro Preto, Brazil; Programa de Pós Graduação em Ciências Biológicas, Universidade Federal de Ouro Preto, Brazil.
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Ferraz AC, Almeida LT, da Silva Caetano CC, da Silva Menegatto MB, Souza Lima RL, de Senna JPN, de Oliveira Cardoso JM, Perucci LO, Talvani A, Geraldo de Lima W, de Mello Silva B, Barbosa Reis A, de Magalhães JC, Lopes de Brito Magalhães C. Hepatoprotective, antioxidant, anti-inflammatory, and antiviral activities of silymarin against mayaro virus infection. Antiviral Res 2021; 194:105168. [PMID: 34437912 DOI: 10.1016/j.antiviral.2021.105168] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 08/19/2021] [Accepted: 08/22/2021] [Indexed: 12/17/2022]
Abstract
Infection caused by Mayaro virus (MAYV) is responsible for causing acute nonspecific fever, in which the majority of patients develop incapacitating and persistent arthritis/arthralgia. Mayaro fever is a neglected and underreported disease without treatment or vaccine, which has gained attention in recent years after the competence of Aedes aegypti to transmit MAYV was observed in the laboratory, coupled with the fact that cases are being increasingly reported outside of endemic forest areas, calling attention to the potential of an urban cycle arising in the near future. Thus, to mitigate the lack of information about the pathological aspects of MAYV, we previously described the involvement of oxidative stress in MAYV infection in cultured cells and in a non-lethal mouse model. Additionally, we showed that silymarin, a natural compound, attenuated MAYV-induced oxidative stress and inhibited MAYV replication in cells. The antioxidant and anti-MAYV effects prompted us to determine whether silymarin could also reduce oxidative stress and MAYV replication after infection in an immunocompetent animal model. We show that infected mice exhibited reduced weight gain, hepatomegaly, splenomegaly, anaemia, thrombocytopenia, leukopenia, increased liver transaminases, increased pro-inflammatory cytokines and liver inflammation, increased oxidative damage biomarkers, and reduced antioxidant enzyme activity. However, in animals infected and treated with silymarin, all these parameters were reversed or significantly improved, and the detection of viral load in the liver, spleen, brain, thigh muscle, and footpad was significantly reduced. This work reinforces the potent hepatoprotective, antioxidant, anti-inflammatory, and antiviral effects of silymarin against MAYV infection, demonstrating its potential against Mayaro fever disease.
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Affiliation(s)
- Ariane Coelho Ferraz
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Letícia Trindade Almeida
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Camila Carla da Silva Caetano
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Marília Bueno da Silva Menegatto
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Rafaela Lameira Souza Lima
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Joao Pinto Nelson de Senna
- Departamento de Cie^ncias Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Jamille Mirelle de Oliveira Cardoso
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Luiza Oliveira Perucci
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Programa de Pós Graduação Em Biotecnologia, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Programa de Pós Graduação Em Saúde e Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - André Talvani
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Programa de Pós Graduação Em Saúde e Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Departamento de Cie^ncias Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Wanderson Geraldo de Lima
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Departamento de Cie^ncias Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Breno de Mello Silva
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Programa de Pós Graduação Em Biotecnologia, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Programa de Pós Graduação Em Saúde e Nutrição, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Departamento de Cie^ncias Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Alexandre Barbosa Reis
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Departamento de Análises Clínicas, Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - José Carlos de Magalhães
- Departamento de Química, Biotecnologia e Engenharia de Bioprocessos, Universidade Federal de São João Del-Rei, Ouro Branco, Minas Gerais, Brazil
| | - Cintia Lopes de Brito Magalhães
- Programa de Pós Graduação Em Cie^ncias Biológicas, Núcleo de Pesquisas Em Cie^ncias Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Departamento de Cie^ncias Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
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da Silva Caetano CC, Camini FC, Almeida LT, Ferraz AC, da Silva TF, Lima RLS, de Freitas Carvalho MM, de Freitas Castro T, Carneiro CM, de Mello Silva B, de Queiroz Silva S, de Magalhães JC, de Brito Magalhães CL. Mayaro Virus Induction of Oxidative Stress is Associated With Liver Pathology in a Non-Lethal Mouse Model. Sci Rep 2019; 9:15289. [PMID: 31653913 PMCID: PMC6814867 DOI: 10.1038/s41598-019-51713-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 10/01/2019] [Indexed: 02/01/2023] Open
Abstract
Mayaro virus (MAYV) causes Mayaro fever in humans, a self-limiting acute disease, with persistent arthralgia and arthritis. Although MAYV has a remerging potential, its pathogenic mechanisms remain unclear. Here, we characterized a model of MAYV infection in 3-4-week BALB/c mice. We investigated whether the liver acts as a site of viral replication and if the infection could cause histopathological alterations and an imbalance in redox homeostasis, culminating with oxidative stress. MAYV-infected mice revealed lower weight gain; however, the disease was self-resolving. High virus titre, neutralizing antibodies, and increased levels of aspartate and alanine aminotransferases were detected in the serum. Infectious viral particles were recovered in the liver of infected animals and the histological examination of liver tissues revealed significant increase in the inflammatory infiltrate. MAYV induced significant oxidative stress in the liver of infected animals, as well as a deregulation of enzymatic antioxidant components. Collectively, this is the first study to report that oxidative stress occurs in MAYV infection in vivo, and that it may be crucial in virus pathogenesis. Future studies are warranted to address the alternative therapeutic strategies for Mayaro fever, such as those based on antioxidant compounds.
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Affiliation(s)
- Camila Carla da Silva Caetano
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Fernanda Caetano Camini
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Letícia Trindade Almeida
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Ariane Coelho Ferraz
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Tales Fernando da Silva
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | | | - Mayara Medeiros de Freitas Carvalho
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Thalles de Freitas Castro
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Cláudia Martins Carneiro
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Clinical Analysis Departament, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Postgraduate Program of Biotechnology, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Breno de Mello Silva
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Biological Science Departament, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Postgraduate Program of Biotechnology, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Silvana de Queiroz Silva
- Biological Science Departament, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Postgraduate Program of Biotechnology, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - José Carlos de Magalhães
- Department of Chemistry, Biotechnology and Bioprocess Engineering, Universidade Federal de São João del-Rei, Ouro Branco, Minas Gerais, Brazil
| | - Cintia Lopes de Brito Magalhães
- Postgraduate Program of Biological Science, Biological Sciences Research Center, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
- Biological Science Departament, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
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Camini FC, da Silva TF, da Silva Caetano CC, Almeida LT, Ferraz AC, Alves Vitoreti VM, de Mello Silva B, de Queiroz Silva S, de Magalhães JC, de Brito Magalhães CL. Antiviral activity of silymarin against Mayaro virus and protective effect in virus-induced oxidative stress. Antiviral Res 2018; 158:8-12. [PMID: 30076863 DOI: 10.1016/j.antiviral.2018.07.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/21/2018] [Accepted: 07/28/2018] [Indexed: 01/29/2023]
Abstract
Mayaro virus (MAYV) is a neglected arbovirus belonging to the family Togaviridae. Its infection leads to Mayaro fever, with clinical manifestations such as fever, myalgia, headache, rash, arthralgia, vomiting, and diarrhea. The most prominent complaint from infected person is the long-lasting arthritis/arthralgia. The treatment for Mayaro fever is mainly symptom-based and there are no vaccines or antiviral drugs currently available, thus, natural products with anti-MAYV activity may provide a potential alternative. Recent evidences suggest that oxidative stress plays an important role in MAYV infection and compounds capable of modulating oxidative stress could represent a novel therapeutic approach in modulating MAYV-associated oxidative cellular damage. Silymarin is a complex extracted of Silybum marianum, or milk thistle, and its major active compound is silybin, which has a remarkable biological effect. Its antioxidant and antiviral effects, including its antiviral activity against the Chikungunya virus (CHIKV), prompted us to think whether silymarin could also reduce the replication of the MAYV and restore the pro-oxidant/antioxidant balance in the context of MAYV infection, leading to reduced cellular oxidative stress. We assessed the antiviral activity and protective effect of silymarin against oxidative stress in MAYV-infected HepG2 cells. Cytopathic effect inhibition, viral replication, and plaque reduction assays were used to determine the anti-MAYV activity of silymarin. Additionally, we determined whether silymarin could reduce MAYV-induced oxidative cell damage. Briefly, silymarin exhibited potent antiviral activity against MAYV and reduced MAYV-induced ROS formation and levels of malondialdehyde (MDA) and carbonyl protein, which are biomarkers of oxidative stress. In conclusion, the ability of silymarin to inhibit MAYV replication and attenuate MAYV-induce oxidative stress warrants further investigation of this compound as a novel therapeutic approach to Mayaro fever disease.
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Affiliation(s)
- Fernanda Caetano Camini
- Núcleo de Pesquisas em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Tales Fernando da Silva
- Núcleo de Pesquisas em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Camila Carla da Silva Caetano
- Núcleo de Pesquisas em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Letícia Trindade Almeida
- Núcleo de Pesquisas em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Ariane Coelho Ferraz
- Núcleo de Pesquisas em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | | | - Breno de Mello Silva
- Núcleo de Pesquisas em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Silvana de Queiroz Silva
- Núcleo de Pesquisas em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - José Carlos de Magalhães
- Departamento de Química, Biotecnologia e Engenharia de Bioprocessos, Universidade Federal de São João del-Rei, Ouro Branco, Minas Gerais, Brazil
| | - Cintia Lopes de Brito Magalhães
- Núcleo de Pesquisas em Ciências Biológicas, NUPEB, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
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Camini FC, da Silva Caetano CC, Almeida LT, da Costa Guerra JF, de Mello Silva B, de Queiroz Silva S, de Magalhães JC, de Brito Magalhães CL. Oxidative stress in Mayaro virus infection. Virus Res 2017; 236:1-8. [DOI: 10.1016/j.virusres.2017.04.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 04/18/2017] [Accepted: 04/24/2017] [Indexed: 12/13/2022]
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