1
|
Dos Ramos Almeida CJL, Veras FP, Paiva IM, Schneider AH, Silva JDC, Gomes GF, Costa VF, Silva BMS, Caetite DB, Silva CMS, Salina ACG, Martins R, Bonilha CS, Cunha LD, Jamur MC, Silva LLPD, Arruda E, Zamboni DS, Louzada-Junior P, de Oliveira RDR, Alves-Filho JC, Cunha TM, Cunha FDQ. Neutrophil virucidal activity against SARS-CoV-2 is mediated by NETs. J Infect Dis 2023:jiad526. [PMID: 38015657 DOI: 10.1093/infdis/jiad526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 11/10/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND The inflammation in the lungs and other vital organs in COVID-19 are characterized by the presence of neutrophils and high concentration of neutrophil extracellular traps (NETs), which also seems to mediate host tissue damage. However, it is not known whether NETs could have virucidal activity against SARS-CoV-2. METHODS We investigated whether NETs could prevent SARS-CoV-2 replication in neutrophils and epithelial cells, and what the consequence of NETs degradation in K18-humanized ACE2 transgenic mice infected with SARS-CoV-2. RESULTS Here, by immunofluorescence microscopy we observed that viral particles co-localize with NETs in neutrophils isolated from COVID-19 patients or from healthy individuals and infected in vitro. The inhibition of NETs production increased virus replication in neutrophils. In parallel, we observed that NETs inhibited virus abilities to infect and replicate in epithelial cells after 24 h of infection. Degradation of NETs with DNase I prevented their virucidal effect in vitro. Using K18-humanized ACE2 transgenic mice we observed a higher viral load in animals treated with DNase I. On the other hand, the virucidal effect of NETs was not dependent on neutrophil elastase or myeloperoxidase activity. CONCLUSION Our results provide evidence of the role of NETosis as a mechanism of SARS-CoV-2 viral capture and inhibition.
Collapse
Affiliation(s)
- Cícero José Luíz Dos Ramos Almeida
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Flávio Protásio Veras
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Isadora Marques Paiva
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Ayda Henriques Schneider
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Juliana da Costa Silva
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Giovanni Freitas Gomes
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Victor Ferreira Costa
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Bruna Manuella Souza Silva
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Diego Brito Caetite
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Camila Meirelles Souza Silva
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Ana Caroline Guerta Salina
- Department of Cellular and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Ronaldo Martins
- Department of Cellular and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Caio Santos Bonilha
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Larissa Dias Cunha
- Department of Cellular and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Maria Célia Jamur
- Department of Cellular and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Luís Lamberti Pinto da Silva
- Department of Cellular and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Eurico Arruda
- Department of Cellular and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Dario Simões Zamboni
- Department of Cellular and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Paulo Louzada-Junior
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Renê Donizeti Ribeiro de Oliveira
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - José Carlos Alves-Filho
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Thiago Mattar Cunha
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Fernando de Queiroz Cunha
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| |
Collapse
|
2
|
Ribeiro R, Silva EG, Moreira FC, Gomes GF, Cussat GR, Silva BSR, da Silva MCM, de Barros Fernandes H, de Sena Oliveira C, de Oliveira Guarnieri L, Lopes V, Ferreira CN, de Faria AMC, Maioli TU, Ribeiro FM, de Miranda AS, Moraes GSP, de Oliveira ACP, Vieira LB. Chronic hyperpalatable diet induces impairment of hippocampal-dependent memories and alters glutamatergic and fractalkine axis signaling. Sci Rep 2023; 13:16358. [PMID: 37773430 PMCID: PMC10541447 DOI: 10.1038/s41598-023-42955-9] [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: 04/25/2023] [Accepted: 09/16/2023] [Indexed: 10/01/2023] Open
Abstract
Chronic consumption of hyperpalatable and hypercaloric foods has been pointed out as a factor associated with cognitive decline and memory impairment in obesity. In this context, the integration between peripheral and central inflammation may play a significant role in the negative effects of an obesogenic environment on memory. However, little is known about how obesity-related peripheral inflammation affects specific neurotransmission systems involved with memory regulation. Here, we test the hypothesis that chronic exposure to a highly palatable diet may cause neuroinflammation, glutamatergic dysfunction, and memory impairment. For that, we exposed C57BL/6J mice to a high sugar and butter diet (HSB) for 12 weeks, and we investigated its effects on behavior, glial reactivity, blood-brain barrier permeability, pro-inflammatory features, glutamatergic alterations, plasticity, and fractalkine-CX3CR1 axis. Our results revealed that HSB diet induced a decrease in memory reconsolidation and extinction, as well as an increase in hippocampal glutamate levels. Although our data indicated a peripheral pro-inflammatory profile, we did not observe hippocampal neuroinflammatory features. Furthermore, we also observed that the HSB diet increased hippocampal fractalkine levels, a key chemokine associated with neuroprotection and inflammatory regulation. Then, we hypothesized that the elevation on glutamate levels may saturate synaptic communication, partially limiting plasticity, whereas fractalkine levels increase as a strategy to decrease glutamatergic damage.
Collapse
Affiliation(s)
- Roberta Ribeiro
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Ave. Antonio Carlos 6627, Belo Horizonte, MG, CEP: 31270-901, Brazil
| | - Emanuele Guimarães Silva
- Department of Immunology and Biochemistry, ICB, University of Minas Gerais, Belo Horizonte, Brazil
| | - Felipe Caixeta Moreira
- Department of Immunology and Biochemistry, ICB, University of Minas Gerais, Belo Horizonte, Brazil
| | - Giovanni Freitas Gomes
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Gabriela Reis Cussat
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Ave. Antonio Carlos 6627, Belo Horizonte, MG, CEP: 31270-901, Brazil
| | - Barbara Stehling Ramos Silva
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Ave. Antonio Carlos 6627, Belo Horizonte, MG, CEP: 31270-901, Brazil
| | - Maria Carolina Machado da Silva
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Ave. Antonio Carlos 6627, Belo Horizonte, MG, CEP: 31270-901, Brazil
| | | | - Carolina de Sena Oliveira
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Ave. Antonio Carlos 6627, Belo Horizonte, MG, CEP: 31270-901, Brazil
| | | | - Victoria Lopes
- Colégio Técnico, University of Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Tatiani Uceli Maioli
- Department of Immunology and Biochemistry, ICB, University of Minas Gerais, Belo Horizonte, Brazil
| | - Fabíola Mara Ribeiro
- Department of Immunology and Biochemistry, ICB, University of Minas Gerais, Belo Horizonte, Brazil
| | | | | | | | - Luciene Bruno Vieira
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Ave. Antonio Carlos 6627, Belo Horizonte, MG, CEP: 31270-901, Brazil.
| |
Collapse
|
3
|
Silva CMS, Wanderley CWS, Veras FP, Gonçalves AV, Lima MHF, Toller-Kawahisa JE, Gomes GF, Nascimento DC, Monteiro VVS, Paiva IM, Almeida CJLR, Caetité DB, Silva JC, Lopes MIF, Bonjorno LP, Giannini MC, Amaral NB, Benatti MN, Santana RC, Damasceno LEA, Silva BMS, Schneider AH, Castro IMS, Silva JCS, Vasconcelos AP, Gonçalves TT, Batah SS, Rodrigues TS, Costa VF, Pontelli MC, Martins RB, Martins TV, Espósito DLA, Cebinelli GCM, da Fonseca BAL, Leiria LOS, Cunha LD, Arruda E, Nakaia HI, Fabro AT, Oliveira RDR, Zamboni DS, Louzada-Junior P, Cunha TM, Alves-Filho JCF, Cunha FQ. Gasdermin-D activation by SARS-CoV-2 triggers NET and mediate COVID-19 immunopathology. Crit Care 2022; 26:206. [PMID: 35799268 PMCID: PMC9261892 DOI: 10.1186/s13054-022-04062-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 06/07/2022] [Indexed: 12/15/2022] Open
Abstract
Abstract
Background
The release of neutrophil extracellular traps (NETs) is associated with inflammation, coagulopathy, and organ damage found in severe cases of COVID-19. However, the molecular mechanisms underlying the release of NETs in COVID-19 remain unclear.
Objectives
We aim to investigate the role of the Gasdermin-D (GSDMD) pathway on NETs release and the development of organ damage during COVID-19.
Methods
We performed a single-cell transcriptome analysis in public data of bronchoalveolar lavage. Then, we enrolled 63 hospitalized patients with moderate and severe COVID-19. We analyze in blood and lung tissue samples the expression of GSDMD, presence of NETs, and signaling pathways upstreaming. Furthermore, we analyzed the treatment with disulfiram in a mouse model of SARS-CoV-2 infection.
Results
We found that the SARS-CoV-2 virus directly activates the pore-forming protein GSDMD that triggers NET production and organ damage in COVID-19. Single-cell transcriptome analysis revealed that the expression of GSDMD and inflammasome-related genes were increased in COVID-19 patients. High expression of active GSDMD associated with NETs structures was found in the lung tissue of COVID-19 patients. Furthermore, we showed that activation of GSDMD in neutrophils requires active caspase1/4 and live SARS-CoV-2, which infects neutrophils. In a mouse model of SARS-CoV-2 infection, the treatment with disulfiram inhibited NETs release and reduced organ damage.
Conclusion
These results demonstrated that GSDMD-dependent NETosis plays a critical role in COVID-19 immunopathology and suggests GSDMD as a novel potential target for improving the COVID-19 therapeutic strategy.
Collapse
|
4
|
Rodrigues PB, Gomes GF, Angelim MKSC, Souza GF, Muraro SP, Toledo-Teixeira DA, Rattis BAC, Passos AS, Pral LP, de Rezende Rodovalho V, dos Santos P. Gomes AB, Matheus VA, Antunes ASLM, Crunfli F, Antunes KH, de Souza APD, Consonni SR, Leiria LO, Alves-Filho JC, Cunha TM, Moraes-Vieira PMM, Proença-Módena JL, R. Vinolo MA. Impact of Microbiota Depletion by Antibiotics on SARS-CoV-2 Infection of K18-hACE2 Mice. Cells 2022; 11:2572. [PMID: 36010648 PMCID: PMC9406363 DOI: 10.3390/cells11162572] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/12/2022] [Accepted: 08/13/2022] [Indexed: 11/25/2022] Open
Abstract
Clinical and experimental data indicate that severe acute respiratory syndrome coronavirus (SARS-CoV)-2 infection is associated with significant changes in the composition and function of intestinal microbiota. However, the relevance of these effects for SARS-CoV-2 pathophysiology is unknown. In this study, we analyzed the impact of microbiota depletion after antibiotic treatment on the clinical and immunological responses of K18-hACE2 mice to SARS-CoV-2 infection. Mice were treated with a combination of antibiotics (kanamycin, gentamicin, metronidazole, vancomycin, and colistin, Abx) for 3 days, and 24 h later, they were infected with SARS-CoV-2 B lineage. Here, we show that more than 80% of mice succumbed to infection by day 11 post-infection. Treatment with Abx had no impact on mortality. However, Abx-treated mice presented better clinical symptoms, with similar weight loss between infected-treated and non-treated groups. We observed no differences in lung and colon histopathological scores or lung, colon, heart, brain and kidney viral load between groups on day 5 of infection. Despite some minor differences in the expression of antiviral and inflammatory markers in the lungs and colon, no robust change was observed in Abx-treated mice. Together, these findings indicate that microbiota depletion has no impact on SARS-CoV-2 infection in mice.
Collapse
Affiliation(s)
- Patrícia Brito Rodrigues
- Laboratory of Immunoinflammation, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| | - Giovanni Freitas Gomes
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14000-000, Brazil
| | - Monara K. S. C. Angelim
- Laboratory of Immunometabolism, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| | - Gabriela F. Souza
- Laboratory of Emerging Viruses, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil or
| | - Stefanie Primon Muraro
- Laboratory of Emerging Viruses, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil or
| | - Daniel A. Toledo-Teixeira
- Laboratory of Emerging Viruses, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil or
| | - Bruna Amanda Cruz Rattis
- Department of Pathology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14000-000, Brazil
| | - Amanda Stephane Passos
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14000-000, Brazil
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14000-000, Brazil
| | - Laís Passarielo Pral
- Laboratory of Immunoinflammation, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| | - Vinícius de Rezende Rodovalho
- Laboratory of Immunoinflammation, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| | | | - Valquíria Aparecida Matheus
- Laboratory of Immunoinflammation, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| | | | - Fernanda Crunfli
- Laboratory of Neuroproteomics, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| | - Krist Helen Antunes
- Laboratory of Clinical and Experimental Immunology, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90000-000, Brazil
| | - Ana Paula Duarte de Souza
- Laboratory of Clinical and Experimental Immunology, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90000-000, Brazil
| | - Sílvio Roberto Consonni
- Laboratory of Citochemistry and Immunocitochemistry, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| | - Luiz Osório Leiria
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14000-000, Brazil
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14000-000, Brazil
| | - José Carlos Alves-Filho
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14000-000, Brazil
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14000-000, Brazil
| | - Thiago M. Cunha
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14000-000, Brazil
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14000-000, Brazil
| | - Pedro M. M. Moraes-Vieira
- Laboratory of Immunometabolism, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
- Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas 13000-000, Brazil
- Experimental Medicine Research Cluster, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| | - José Luiz Proença-Módena
- Laboratory of Emerging Viruses, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil or
- Experimental Medicine Research Cluster, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| | - Marco Aurélio R. Vinolo
- Laboratory of Immunoinflammation, Institute of Biology, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
- Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas 13000-000, Brazil
- Experimental Medicine Research Cluster, University of Campinas (UNICAMP), Campinas 13000-000, Brazil
| |
Collapse
|
5
|
da Silva MCM, Gomes GF, de Barros Fernandes H, da Silva AM, Teixeira AL, Moreira FA, de Miranda AS, de Oliveira ACP. Inhibition of CSF1R, a receptor involved in microglia viability, alters behavioral and molecular changes induced by cocaine. Sci Rep 2021; 11:15989. [PMID: 34362959 PMCID: PMC8346567 DOI: 10.1038/s41598-021-95059-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 03/30/2021] [Accepted: 07/13/2021] [Indexed: 02/07/2023] Open
Abstract
Different data suggest that microglia may participate in the drug addiction process as these cells respond to neurochemical changes induced by the administration of these substances. In order to study the role of microglia in drug abuse, Swiss mice aged 8-9 weeks were treated with the CSF1R inhibitor PLX3397 (40 mg/kg, p.o.) and submitted to behavioral sensitization or conditioned place preference (CPP) induced by cocaine (15 mg/kg, i.p.). Thereafter, brains were used to evaluate the effects of CSF1R inhibition and cocaine administration on morphological, biochemical and molecular changes. CSF1R inhibition attenuated behavioral sensitization, reduced the number of Iba-1+ cells and increased ramification and lengths of the branches in the remaining microglia. Additionally, both cocaine and PLX3397 increased the cell body to total cell size ratio of Iba-1+ cells, as well as CD68+ and GFAP+ stained areas, suggesting an activated pattern of the glial cells. Besides, CSF1R inhibition increased CX3CL1 levels in the striatum, prefrontal cortex and hippocampus, as well as reduced CX3CR1 expression in the hippocampus. In this region, cocaine also reduced BDNF levels, an effect that was enhanced by CSF1R inhibition. In summary, our results suggest that microglia participate in the behavioral and molecular changes induced by cocaine. This study contributes to the understanding of the role of microglia in cocaine addiction.
Collapse
Affiliation(s)
- Maria Carolina Machado da Silva
- Neuropharmacology Laboratory, Department of Pharmacology, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Giovanni Freitas Gomes
- Neuropharmacology Laboratory, Department of Pharmacology, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil
| | - Heliana de Barros Fernandes
- Neurobiology Laboratory Conceição Machado, Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Laboratory of Inflammatory Genes, Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Aristóbolo Mendes da Silva
- Laboratory of Inflammatory Genes, Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Antônio Lúcio Teixeira
- Department of Psychiatry and Behavioral Science McGovern School, The University of Texas Health Science Center at Houston, Houston, USA
| | - Fabrício A Moreira
- Neuropsychopharmacology Laboratory, Department of Pharmacology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Aline Silva de Miranda
- Neurobiology Laboratory Conceição Machado, Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Antônio Carlos Pinheiro de Oliveira
- Neuropharmacology Laboratory, Department of Pharmacology, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Belo Horizonte, MG, 31270-901, Brazil.
| |
Collapse
|
6
|
Carvalho-Paulo D, Bento Torres Neto J, Filho CS, de Oliveira TCG, de Sousa AA, dos Reis RR, dos Santos ZA, de Lima CM, de Oliveira MA, Said NM, Freitas SF, Sosthenes MCK, Gomes GF, Henrique EP, Pereira PDC, de Siqueira LS, de Melo MAD, Guerreiro Diniz C, Magalhães NGDM, Diniz JAP, Vasconcelos PFDC, Diniz DG, Anthony DC, Sherry DF, Brites D, Picanço Diniz CW. Microglial Morphology Across Distantly Related Species: Phylogenetic, Environmental and Age Influences on Microglia Reactivity and Surveillance States. Front Immunol 2021; 12:683026. [PMID: 34220831 PMCID: PMC8250867 DOI: 10.3389/fimmu.2021.683026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/31/2021] [Indexed: 12/16/2022] Open
Abstract
Microglial immunosurveillance of the brain parenchyma to detect local perturbations in homeostasis, in all species, results in the adoption of a spectrum of morphological changes that reflect functional adaptations. Here, we review the contribution of these changes in microglia morphology in distantly related species, in homeostatic and non-homeostatic conditions, with three principal goals (1): to review the phylogenetic influences on the morphological diversity of microglia during homeostasis (2); to explore the impact of homeostatic perturbations (Dengue virus challenge) in distantly related species (Mus musculus and Callithrix penicillata) as a proxy for the differential immune response in small and large brains; and (3) to examine the influences of environmental enrichment and aging on the plasticity of the microglial morphological response following an immunological challenge (neurotropic arbovirus infection). Our findings reveal that the differences in microglia morphology across distantly related species under homeostatic condition cannot be attributed to the phylogenetic origin of the species. However, large and small brains, under similar non-homeostatic conditions, display differential microglial morphological responses, and we argue that age and environment interact to affect the microglia morphology after an immunological challenge; in particular, mice living in an enriched environment exhibit a more efficient immune response to the virus resulting in earlier removal of the virus and earlier return to the homeostatic morphological phenotype of microglia than it is observed in sedentary mice.
Collapse
Affiliation(s)
- Dario Carvalho-Paulo
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - João Bento Torres Neto
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
- Faculdade de Fisioterapia e Terapia Ocupacional, Universidade Federal do Pará, Belém, Brazil
| | - Carlos Santos Filho
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Thais Cristina Galdino de Oliveira
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Aline Andrade de Sousa
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Renata Rodrigues dos Reis
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Zaire Alves dos Santos
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Camila Mendes de Lima
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Marcus Augusto de Oliveira
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Nivin Mazen Said
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Sinara Franco Freitas
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Marcia Consentino Kronka Sosthenes
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Giovanni Freitas Gomes
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | - Ediely Pereira Henrique
- Laboratório de Biologia Molecular e Neuroecologia, Instituto Federal de Educação Ciência e Tecnologia do Pará, Bragança, Brazil
| | - Patrick Douglas Côrrea Pereira
- Laboratório de Biologia Molecular e Neuroecologia, Instituto Federal de Educação Ciência e Tecnologia do Pará, Bragança, Brazil
| | - Lucas Silva de Siqueira
- Laboratório de Biologia Molecular e Neuroecologia, Instituto Federal de Educação Ciência e Tecnologia do Pará, Bragança, Brazil
| | - Mauro André Damasceno de Melo
- Laboratório de Biologia Molecular e Neuroecologia, Instituto Federal de Educação Ciência e Tecnologia do Pará, Bragança, Brazil
| | - Cristovam Guerreiro Diniz
- Laboratório de Biologia Molecular e Neuroecologia, Instituto Federal de Educação Ciência e Tecnologia do Pará, Bragança, Brazil
| | - Nara Gyzely de Morais Magalhães
- Laboratório de Biologia Molecular e Neuroecologia, Instituto Federal de Educação Ciência e Tecnologia do Pará, Bragança, Brazil
| | | | - Pedro Fernando da Costa Vasconcelos
- Dep. de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Belém, Brazil
- Departamento de Patologia, Universidade do Estado do Pará, Belém, Brazil
| | - Daniel Guerreiro Diniz
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
- Laboratório de Microscopia Eletrônica, Instituto Evandro Chagas, Belém, Brazil
| | | | - David Francis Sherry
- Department of Psychology, Advanced Facility for Avian Research, University of Western Ontario, London, ON, Canada
| | - Dora Brites
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Cristovam Wanderley Picanço Diniz
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| |
Collapse
|
7
|
Bellozi PMQ, Gomes GF, de Oliveira LR, Olmo IG, Vieira ÉLM, Ribeiro FM, Fiebich BL, de Oliveira ACP. NVP-BEZ235 (Dactolisib) Has Protective Effects in a Transgenic Mouse Model of Alzheimer's Disease. Front Pharmacol 2019; 10:1345. [PMID: 31798451 PMCID: PMC6864823 DOI: 10.3389/fphar.2019.01345] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 10/24/2019] [Indexed: 01/03/2023] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disease and the main cause of dementia. Its major symptom is memory loss, which is a result of neuronal cell death, which is accompanied by neuroinflammation. Some studies indicate the overactivation of the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/mechanistic target of rapamycin (mTOR) pathway in this disease, being, thus, a potential target for pharmacological treatment. Here, we used a transgenic mouse model of AD that expresses a mutant amyloid-β precursor protein (T41 mice) to investigate the effects of dactolisib (alternative name: NVP-BEZ235, abbreviation BEZ), a dual PI3K/mTOR inhibitor. Ten-months-old T41 animals were treated for 14 days with BEZ or vehicle via oral gavage and then submitted to social memory, open field and contextual conditioned fear tests. Hippocampal slices were prepared and Aβ1-42 content, NeuN, Iba-1, CD68 and GFAP were evaluated. Tissues were further processed to evaluate cytokines levels through cytometric bead array. The treatment with BEZ (5 mg/kg) reduced social memory impairment in T41 mice. However, BEZ did not have any effect on altered Aβ levels, NeuN, or GFAP staining. The drug reduced the CD68/Iba-1 ratio in CA3 region of hippocampus. Finally, BEZ diminished IL-10 levels in T41 mice. Thus, although its mechanisms are not clear, BEZ protects against memory impairment, reduces microglial activation and reestablishes IL-10 levels, revealing beneficial effects, which should be further investigated for the treatment of AD.
Collapse
Affiliation(s)
| | - Giovanni Freitas Gomes
- Department of Pharmacology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Isabella Guimarães Olmo
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Fabíola Mara Ribeiro
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Bernd L Fiebich
- Neuroimmunology and Neurochemistry Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, Freiburg im Breisgau, Germany
| | | |
Collapse
|
8
|
Bellozi PMQ, Gomes GF, da Silva MCM, Lima IVDA, Batista CRÁ, Carneiro Junior WDO, Dória JG, Vieira ÉLM, Vieira RP, de Freitas RP, Ferreira CN, Candelario-Jalil E, Wyss-Coray T, Ribeiro FM, de Oliveira ACP. A positive allosteric modulator of mGluR5 promotes neuroprotective effects in mouse models of Alzheimer's disease. Neuropharmacology 2019; 160:107785. [PMID: 31541651 DOI: 10.1016/j.neuropharm.2019.107785] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/06/2019] [Accepted: 09/17/2019] [Indexed: 12/26/2022]
Abstract
Alzheimer's Disease (AD) is the most prevalent neurodegenerative disorder. Despite advances in the understanding of its pathophysiology, none of the available therapies prevents disease progression. Excess glutamate plays an important role in excitotoxicity by activating ionotropic receptors. However, the mechanisms modulating neuronal cell survival/death via metabotropic glutamate receptors (mGluRs) are not completely understood. Recent data indicates that CDPPB, a positive allosteric modulator of mGluR5, has neuroprotective effects. Thus, this work aimed to investigate CDPPB treatment effects on amyloid-β (Aβ) induced pathological alterations in vitro and in vivo and in a transgenic mouse model of AD (T41 mice). Aβ induced cell death in primary cultures of hippocampal neurons, which was prevented by CDPPB. Male C57BL/6 mice underwent stereotaxic surgery for unilateral intra-hippocampal Aβ injection, which induced memory deficits, neurodegeneration, neuronal viability reduction and decrease of doublecortin-positive cells, a marker of immature neurons and neuronal proliferation. Treatment with CDPPB for 8 days reversed neurodegeneration and doublecortin-positive cells loss and recovered memory function. Fourteen months old T41 mice presented cognitive deficits, neuronal viability reduction, gliosis and Aβ accumulation. Treatment with CDPPB for 28 days increased neuronal viability (32.2% increase in NeuN+ cells) and reduced gliosis in CA1 region (Iba-1+ area by 31.3% and GFAP+ area by 37.5%) in transgenic animals, without inducing hepatotoxicity. However, it did not reverse cognitive deficit. Despite a four-week treatment did not prevent memory loss in aged transgenic mice, CDPPB is protective against Aβ stimulus. Therefore, this drug represents a potential candidate for further investigations as AD treatment.
Collapse
Affiliation(s)
| | - Giovanni Freitas Gomes
- Department of Pharmacology, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | | | | | | | | | - Juliana Guimarães Dória
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | | | - Rafael Pinto Vieira
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | | | - Claudia Natália Ferreira
- Clinical Pathology Sector of COLTEC, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | | | - Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Fabíola Mara Ribeiro
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | | |
Collapse
|
9
|
Gomes GF, Peixoto RDDF, Maciel BG, Santos KFD, Bayma LR, Feitoza Neto PA, Fernandes TN, de Abreu CC, Casseb SMM, de Lima CM, de Oliveira MA, Diniz DG, Vasconcelos PFDC, Sosthenes MCK, Diniz CWP. Differential Microglial Morphological Response, TNFα, and Viral Load in Sedentary-like and Active Murine Models After Systemic Non-neurotropic Dengue Virus Infection. J Histochem Cytochem 2019; 67:419-439. [PMID: 30924711 DOI: 10.1369/0022155419835218] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Peripheral inflammatory stimuli increase proinflammatory cytokines in the bloodstream and central nervous system and activate microglial cells. Here we tested the hypothesis that contrasting environments mimicking sedentary and active lives would be associated with differential microglial morphological responses, inflammatory cytokines concentration, and virus load in the peripheral blood. For this, mice were maintained either in standard (standard environment) or enriched cages (enriched environment) and then subjected to a single (DENV1) serotype infection. Blood samples from infected animals showed higher viral loads and higher tumor necrosis factor-α (TNFα) mRNA concentrations than control subjects. Using an unbiased stereological sampling approach, we selected 544 microglia from lateral septum for microscopic 3D reconstruction. Morphological complexity contributed most to cluster formation. Infected groups exhibited significant increase in the microglia morphological complexity and number, despite the absence of dengue virus antigens in the brain. Two microglial phenotypes (type I with lower and type II with higher morphological complexity) were found in both infected and control groups. However, microglia from infected mice maintained in enriched environment showed only one morphological phenotype. Two-way ANOVA revealed that environmental changes and infection influenced type-I and II microglial morphologies and number. Environmental enrichment and infection interactions may contribute to microglial morphological change to a point that type-I and II morphological phenotypes could no longer be distinguished in infected mice from enriched environment. Significant linear correlation was found between morphological complexity and TNFα peripheral blood. Our findings demonstrated that sedentary-like and active murine models exhibited differential microglial responses and peripheral inflammation to systemic non-neurotropic infections with DENV1 virus.
Collapse
Affiliation(s)
- Giovanni Freitas Gomes
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Railana Deise da Fonseca Peixoto
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Brenda Gonçalves Maciel
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Kedma Farias Dos Santos
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Lohrane Rosa Bayma
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Pedro Alves Feitoza Neto
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Taiany Nogueira Fernandes
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Cintya Castro de Abreu
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | | | - Camila Mendes de Lima
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Marcus Augusto de Oliveira
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Daniel Guerreiro Diniz
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | | | - Marcia Consentino Kronka Sosthenes
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| | - Cristovam Wanderley Picanço Diniz
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Brasil
| |
Collapse
|
10
|
Gomes JAS, Oliveira MC, Gobira PH, Silva GC, Marçal AP, Gomes GF, Ferrari CZ, Lemos VS, Oliveira ACPD, Vieira LB, Ferreira AVM, Aguiar DC. A high-refined carbohydrate diet facilitates compulsive-like behavior in mice through the nitric oxide pathway. Nitric Oxide 2018; 80:61-69. [PMID: 30125695 DOI: 10.1016/j.niox.2018.08.008] [Citation(s) in RCA: 6] [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: 04/13/2018] [Revised: 08/13/2018] [Accepted: 08/16/2018] [Indexed: 01/17/2023]
Abstract
Obesity is characterized by abnormal adipose tissue expansion and is associated with chronic inflammation. Obesity itself may induce several comorbidities, including psychiatric disorders. It has been previously demonstrated that proinflammatory cytokines are able to up-regulate inducible nitric oxide synthase (iNOS) and nitric oxide (NO) release, which both have a role in compulsive related behaviors. OBJECTIVE To evaluate whether acute or chronic consumption of a high-refined carbohydrate-containing (HC) diet will modify burying-behavior in the Marble Burying Test (MBT) through augmentation of NO signaling in the striatum, a brain region related to the reward system. Further, we also verified the effects of chronic consumption of a HC diet on the reinforcing effects induced by cocaine in the Conditioned Place Preference (CPP) test. METHODS Male BALB/c mice received a standard diet (control diet) or a HC diet for 3 days or 12 weeks. RESULTS An increase in burying behavior occurred in the MBT after chronic consumption of a HC diet that was associated with an increase of nitrite levels in the striatum. The pre-treatment with Aminoguanidine (50 mg/kg), a preferential inhibitor of iNOS, prevented such alterations. Additionally, a chronic HC diet also induced a higher expression of iNOS in this region and higher glutamate release from striatal synaptosomes. Neither statistical differences were observed in the expression levels of the neuronal isoform of NOS nor in microglia number and activation. Finally, the reinforcing effects induced by cocaine (15 mg/kg, i.p.) during the expression of the conditioned response in the CPP test were not different between the chronically HC diet fed mice and the control group. However, HC diet-feeding mice presented impairment of cocaine-preference extinction. CONCLUSION Altogether, our results suggest that the chronic consumption of a HC diet induces compulsive-like behavior through a mechanism possibly associated with NO activation in the striatum.
Collapse
Affiliation(s)
- Júlia Ariana Souza Gomes
- Laboratório de Neuropsicofarmacologia, Departamento de Farmacologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Departamento de Farmacologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Marina C Oliveira
- Departmento de Nutrição, Escola de Enfermagem, Universidade Federal de Minas Gerais Belo Horizonte, MG, Brazil
| | - Pedro Henrique Gobira
- Laboratório de Neuropsicofarmacologia, Departamento de Farmacologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Grazielle C Silva
- Laboratório de Fisiologia Cardiovascular, Departmento de Fisiologia e Biofísica, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Anna Paula Marçal
- Laboratório de Neuropsicofarmacologia, Departamento de Farmacologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Giovanni Freitas Gomes
- Laboratório de Neurofarmacologia, Departmento de Farmacologia, Universidade Federal de Minas Gerais Belo Horizonte, MG, Brazil
| | - Carolina Zaniboni Ferrari
- Laboratório de Neurofarmacologia, Departmento de Farmacologia, Universidade Federal de Minas Gerais Belo Horizonte, MG, Brazil
| | - Virginia Soares Lemos
- Laboratório de Fisiologia Cardiovascular, Departmento de Fisiologia e Biofísica, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Luciene Bruno Vieira
- Laboratório de Neurofarmacologia, Departmento de Farmacologia, Universidade Federal de Minas Gerais Belo Horizonte, MG, Brazil
| | - Adaliene V M Ferreira
- Departmento de Nutrição, Escola de Enfermagem, Universidade Federal de Minas Gerais Belo Horizonte, MG, Brazil
| | - Daniele C Aguiar
- Laboratório de Neuropsicofarmacologia, Departamento de Farmacologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
| |
Collapse
|
11
|
Diniz DG, Fôro CAR, Turiel MCP, Sosthenes MCK, Demachki S, Gomes GF, Rego CMD, Magalhães MC, Pinho BG, Ramos JP, Casseb SMM, Brito MDV, da Silva EVP, Nunes MRT, Diniz JAP, Cunningham C, Perry VH, Vasconcelos PFC, Diniz CWP. Environmental influences on antibody-enhanced dengue disease outcomes. Mem Inst Oswaldo Cruz 2013; 107:1021-9. [PMID: 23295753 DOI: 10.1590/s0074-02762012000800010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Accepted: 10/02/2012] [Indexed: 11/22/2022] Open
Abstract
Because an enriched environment (EE) enhances T-cell activity and T-lymphocytes contribute to immunopathogenesis during heterologous dengue virus (DENV) infections, we hypothesised that an EE increases dengue severity. To compare single serotype (SS) and antibody-enhanced disease (AED) infections regimens, serial intraperitoneal were performed with DENV3 (genotype III) infected brain homogenate or anti-DENV2 hyperimmune serum followed 24 h later by DENV3 (genotype III) infected brain homogenate. Compared AED for which significant differences were detected between the EE and impoverished environmental (IE) groups (Kaplan-Meyer log-rank test, p = 0.0025), no significant differences were detected between the SS experimental groups (Kaplan-Meyer log-rank test, p = 0.089). Survival curves from EE and IE animals infected with the AED regimen were extended after corticoid injection and this effect was greater in the EE than in the IE group (Kaplan-Meyer log-rank test, p = 0.0162). Under the AED regimen the EE group showed more intense clinical signs than the IE group. Dyspnoea, tremor, hunched posture, ruffled fur, immobility, pre-terminal paralysis, shock and death were associated with dominant T-lymphocytic hyperplasia and presence of viral antigens in the liver and lungs. We propose that the increased expansion of these memory T-cells and serotype cross-reactive antibodies facilitates the infection of these cells by DENV and that these events correlate with disease severity in an EE.
Collapse
Affiliation(s)
- Daniel Guerreiro Diniz
- Laboratório de Investigações em Neurodegeneração e Infecção, Hospital Universitário João de Barros Barreto, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Gomes GF, Vargas JVC, Filho EDM. Utilization of temperature distribution in expiratory speaking flow as a new parameter for speech production analysis. J Med Eng Technol 2004; 28:22-31. [PMID: 14660182 DOI: 10.1080/0309190032000112298] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A new instrument with potential use for speech production analysis is utilized in this study to measure the temperature and velocity of the expiratory speaking flow outside the oral cavity. From a physical point of view, the temperature patterns of individuals with healthy voices are expected to be different from individuals with breathy voices, since their air flow patterns are different: during breathy speech production, the glottis does not close completely, and the leakage of warm air through the glottis increases the extent of the hotter-than-ambient temperature field outside the oral cavity. The instrument is a pipe through which the tested individual breathes out while producing a sustained vowel. A tap water heat exchanger keeps the pipe wall at a temperature level considerably lower than the body temperature. The temperature gradient along the pipe centreline is measured and related to the average air velocity at the oral cavity. The measurements were performed in 30 male and 30 female subjects without vocal complaints. The objective of this initial investigation was to evaluate the possibility of establishing patterns of normality for the temperature distribution outside the oral cavity in expiratory speaking flow. In the experiments, all the temperature measurements increased as the expiratory air flow of the individual increased during speech production, therefore the instrument results agree with the physical behavior predicted by fluid mechanics and heat transfer principles. The collected data allowed for the construction of charts with two distinct normalized temperature distributions outside the oral cavity, for male and female individuals, respectively. These charts have the potential for future utilization in a follow-up study for comparison with similar measurements obtained with individuals with vocal fold pathologies, aiming to eventually produce a reliable new instrument for early detection of vocal problems through a non-invasive procedure.
Collapse
Affiliation(s)
- G F Gomes
- Serviço de Endoscopia, Hospital N. Sa das Graças, (CEP) Curitiba, PR, Brazil
| | | | | |
Collapse
|