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Garcia FG, Helmo FR, da Silva MV, Rodrigues V, Oliveira CJF, Teixeira LDAS, Rogério ADP, Teixeira DNS. Elevated NS1 serum levels reduce CD119 expression and CXCL-10 synthesis in patients with dengue hemorrhagic fever. Rev Soc Bras Med Trop 2024; 57:e00410. [PMID: 39082520 PMCID: PMC11290849 DOI: 10.1590/0037-8682-0577-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 05/23/2024] [Indexed: 08/02/2024] Open
Abstract
BACKGROUND The intensity of dengue virus (DV) replication and circulating non-structural protein 1 (NS1) levels may promote changes in the human immune response and favor severe forms of infection. We investigated the correlations between NS1 with CXCL-8, CXCL-10, IFN-γ, and IL-12p40 serum levels, and IFN-γ receptor α chain (CD119) expression, and CXCL10 production by peripheral blood mononuclear cells (PBMCs) stimulated with recombinant IFN-γ in DV-infected patients with different clinical forms. METHODS Dengue virus NS1, CXCL-8, CXCL-10, IFN-γ, and IL-12p40 serum levels were measured in 152 DV-infected patients with different clinical forms and 20 non-infected individuals (NI) using enzyme-linked immunosorbent assay (ELISA). In addition, we investigated the CXCL-10 production after in vitro IFN-γ stimulation of PBMCs from 48 DV-infected individuals (with different clinical forms of dengue fever) and 20 NI individuals using ELISA, and CD119 expression on CD14+ cells with flow cytometry. RESULTS Patients with dengue hemorrhagic fever (DHF) had significantly higher NS1, CXCL-8, and CXCL-10 serum levels than those with classic dengue fever (DF). The response of PBMCs to IFN-γ stimulation was lower in patients with DHF than in those with DF or dengue with complications (DWC), with lower CD119 expression and reduced CXCL-10 synthesis. In addition, these alterations are associated with high NS1 serum levels. CONCLUSIONS Patients with DHF reported high NS1 levels, low CD119 expression, and low CXCL-10 synthesis in PBMCs, which may be associated with infection progression and severity.
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Affiliation(s)
| | | | - Marcos Vinícius da Silva
- Instituto de Ciências Biológicas e Naturais, Laboratório de
Imunologia. Uberaba, MG, Brasil
- Instituto de Ciências Biológicas e Naturais, Disciplina de
Parasitologia. Uberaba, MG, Brasil
| | - Virmondes Rodrigues
- Instituto de Ciências Biológicas e Naturais, Laboratório de
Imunologia. Uberaba, MG, Brasil
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Razizadeh MH, Zafarani A, Taghavi-Farahabadi M, Khorramdelazad H, Minaeian S, Mahmoudi M. Natural killer cells and their exosomes in viral infections and related therapeutic approaches: where are we? Cell Commun Signal 2023; 21:261. [PMID: 37749597 PMCID: PMC10519079 DOI: 10.1186/s12964-023-01266-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/11/2023] [Indexed: 09/27/2023] Open
Abstract
Innate immunity is the first line of the host immune system to fight against infections. Natural killer cells are the innate immunity lymphocytes responsible for fighting against virus-infected and cancerous cells. They have various mechanisms to suppress viral infections. On the other hand, viruses have evolved to utilize different ways to evade NK cell-mediated responses. Viruses can balance the response by regulating the cytokine release pattern and changing the proportion of activating and inhibitory receptors on the surface of NK cells. Exosomes are a subtype of extracellular vesicles that are involved in intercellular communication. Most cell populations can release these nano-sized vesicles, and it was shown that these vesicles produce identical outcomes to the originating cell from which they are released. In recent years, the role of NK cell-derived exosomes in various diseases including viral infections has been highlighted, drawing attention to utilizing the therapeutic potential of these nanoparticles. In this article, the role of NK cells in various viral infections and the mechanisms used by viruses to evade these important immune system cells are initially examined. Subsequently, the role of NK cell exosomes in controlling various viral infections is discussed. Finally, the current position of these cells in the treatment of viral infections and the therapeutic potential of their exosomes are reviewed. Video Abstract.
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Affiliation(s)
- Mohammad Hossein Razizadeh
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Antimicrobial Resistance Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Zafarani
- Department of Hematology and Blood Banking, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahsa Taghavi-Farahabadi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Khorramdelazad
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Sara Minaeian
- Antimicrobial Resistance Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Mahmoudi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
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3
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Shukla S, Jadhav SM, Gurav YK, Parashar D, Alagarasu K. Serum ferritin level as a prognostic biomarker for predicting dengue disease severity: A systematic review and meta-analysis. Rev Med Virol 2023; 33:e2468. [PMID: 37347209 DOI: 10.1002/rmv.2468] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/30/2023] [Accepted: 06/02/2023] [Indexed: 06/23/2023]
Abstract
Serum ferritin levels serves as biomarkers in many inflammatory and infectious diseases. This current systematic review and meta-analysis evaluated whether serum ferritin levels are associated with severe dengue and its utility as a biomarker of disease severity. Literature searches were conducted in PubMed, Scopus, ScienceDirect, the Cochrane library, and Google Scholar. A total of 18 studies examining the serum ferritin levels in dengue cases in the context of disease severity (nine studies having dengue classification as non-severe vs. severe dengue cases, and nine studies having dengue classification as dengue without warning signs (DwoWS), dengue with warning signs (DwWS), and severe dengue cases) were included and the quality of the studies was assessed using the Quality in Prognostic Factor Studies tool. The meta-analysis was performed using STATA software to calculate the effect size as a standardized mean difference (SMD) or Hedges 'g' for the continuous outcome. Higher serum ferritin levels were found in severe dengue cases compared to non-severe cases [SMD (Hedges 'g') 4.05 (95% C.I. 2.09-6.00), (I2 = 98.8%)]. In the second group, DwWS cases showed high serum ferritin levels compared to DwoWS [SMD 2.01 (95% C.I. 0.92-3.10), (I2 = 97.89%)], and severe dengue cases showed higher levels of serum ferritin compared to DwWS [SMD 2.66 (95% C.I. 1.72-4.48), (I2 = 98.78%)] and DwoWS cases [SMD 6.65 (95% C.I. 1.72-11.59), (I2 = 99.78%]. Subgroup analysis for the country of study (India vs. others), ferritin testing methods, and ferritin measurement day revealed testing method as a significant contributor to heterogeneity. To conclude, the present study suggests serum ferritin as a prognostic marker for dengue disease severity. Multi-centric studies involving a large number of dengue patients with a uniform case definition accounting for all the confounding variables might help in determining a universal cut-off value to discriminate between non-severe and severe dengue.
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Affiliation(s)
- Shridhar Shukla
- Diagnostic Reagent Facility, ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Santosh M Jadhav
- Bioinformatics and Data Management Group, ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Yogesh K Gurav
- Health Technology Assessment Group, ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Deepti Parashar
- Diagnostic Reagent Facility, ICMR-National Institute of Virology, Pune, Maharashtra, India
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Kalichamy Alagarasu
- Dengue and Chikungunya Group, ICMR-National Institute of Virology, Pune, Maharashtra, India
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Ferreira MS, Sousa JR, Bezerra Júnior PS, Cerqueira VD, Oliveira Júnior CA, Rivero GRC, Castro PHG, Silva GA, Muniz JAPC, da Silva EVP, Casseb SMM, Pagliari C, Martins LC, Tesh RB, Quaresma JAS, Vasconcelos PFC. Experimental Yellow Fever in Squirrel Monkey: Characterization of Liver In Situ Immune Response. Viruses 2023; 15:v15020551. [PMID: 36851765 PMCID: PMC9961022 DOI: 10.3390/v15020551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 01/31/2023] [Accepted: 02/10/2023] [Indexed: 02/19/2023] Open
Abstract
Non-human primates contribute to the spread of yellow fever virus (YFV) and the establishment of transmission cycles in endemic areas, such as Brazil. This study aims to investigate virological, histopathological and immunohistochemical findings in livers of squirrel monkeys (Saimiri spp.) infected with the YFV. Viremia occurred 1-30 days post infection (dpi) and the virus showed a predilection for the middle zone (Z2). The livers were jaundiced with subcapsular and hemorrhagic multifocal petechiae. Apoptosis, lytic and coagulative necrosis, steatosis and cellular edema were also observed. The immune response was characterized by the expression of S100, CD11b, CD57, CD4 and CD20; endothelial markers; stress and cell death; pro and anti-inflammatory cytokines, as well as Treg (IL-35) and IL-17 throughout the experimental period. Lesions during the severe phase of the disease were associated with excessive production of apoptotic pro-inflammatory cytokines, such as IFN-γ and TNF-α, released by inflammatory response cells (CD4+ and CD8+ T lymphocytes) and associated with high expression of molecules of adhesion in the inflammatory foci observed in Z2. Immunostaining of the local endothelium in vascular cells and the bile duct was intense, suggesting a fundamental role in liver damage and in the pathogenesis of the disease.
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Affiliation(s)
- Milene S. Ferreira
- Evandro Chagas Institute, Rodovia BR 316, km-07, Ananindeua 67030-000, Pará, Brazil
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 66075-110, Pará, Brazil
| | - Jorge R. Sousa
- Evandro Chagas Institute, Rodovia BR 316, km-07, Ananindeua 67030-000, Pará, Brazil
| | - Pedro S. Bezerra Júnior
- Laboratory of Animal Pathology, Institute of Veterinary Medicine, Federal University of Pará, Castanhal 68746-360, Pará, Brazil
| | - Valíria D. Cerqueira
- Laboratory of Animal Pathology, Institute of Veterinary Medicine, Federal University of Pará, Castanhal 68746-360, Pará, Brazil
| | - Carlos A. Oliveira Júnior
- Laboratory of Animal Pathology, Institute of Veterinary Medicine, Federal University of Pará, Castanhal 68746-360, Pará, Brazil
| | - Gabriela R. C. Rivero
- Laboratory of Animal Pathology, Institute of Veterinary Medicine, Federal University of Pará, Castanhal 68746-360, Pará, Brazil
| | | | - Gilmara A. Silva
- Evandro Chagas Institute, Rodovia BR 316, km-07, Ananindeua 67030-000, Pará, Brazil
| | | | | | - Samir M. M. Casseb
- Evandro Chagas Institute, Rodovia BR 316, km-07, Ananindeua 67030-000, Pará, Brazil
| | - Carla Pagliari
- Faculty of Medicine, University of Sao Paulo, Sao Paulo 01246-903, SP, Brazil
| | - Lívia C. Martins
- Evandro Chagas Institute, Rodovia BR 316, km-07, Ananindeua 67030-000, Pará, Brazil
| | - Robert B. Tesh
- Department of Pathology, Center for Tropical Diseases, University of Texas Medical Branch, Galveston, TX 77555-0419, USA
| | - Juarez A. S. Quaresma
- Evandro Chagas Institute, Rodovia BR 316, km-07, Ananindeua 67030-000, Pará, Brazil
- Tropical Medicine Center, Federal University of Pará, Belém 66055-240, Pará, Brazil
- Department of Pathology, Pará State University, Belém 66050-540, Pará, Brazil
| | - Pedro F. C. Vasconcelos
- Evandro Chagas Institute, Rodovia BR 316, km-07, Ananindeua 67030-000, Pará, Brazil
- Department of Pathology, Pará State University, Belém 66050-540, Pará, Brazil
- Correspondence: or ; Tel.: +55-91-3214-2270
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5
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Garishah FM, Boahen CK, Vadaq N, Pramudo SG, Tunjungputri RN, Riswari SF, van Rij RP, Alisjahbana B, Gasem MH, van der Ven AJAM, de Mast Q. Longitudinal proteomic profiling of the inflammatory response in dengue patients. PLoS Negl Trop Dis 2023; 17:e0011041. [PMID: 36595532 PMCID: PMC9838874 DOI: 10.1371/journal.pntd.0011041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 01/13/2023] [Accepted: 12/20/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND The immunopathogenesis of dengue virus (DENV) infection remains incompletely understood. To increase our understanding of inflammatory response in non-severe dengue, we assessed longitudinal changes in the inflammatory proteome in patients with an acute DENV infection. METHODS Using a multiplex proximity extension assay (PEA), we measured relative levels of 368 inflammatory markers in plasma samples from hospitalized patients with non-severe DENV infection in the acute (n = 43) and convalescence (n = 35) phase of the infection and samples of healthy controls (n = 10). RESULTS We identified 203 upregulated and 39 downregulated proteins in acute versus convalescent plasma samples. The upregulated proteins had a strong representation of interferon (IFN) and IFN-inducible effector proteins, cytokines (e.g. IL-10, IL-33) and cytokine receptors, chemokines, pro-apoptotic proteins (e.g. granzymes) and endothelial markers. A number of differentially expressed proteins (DEPs) have not been reported in previous studies. Functional network analysis highlighted a central role for IFNγ, IL-10, IL-33 and chemokines. We identified different novel associations between inflammatory proteins and circulating concentrations of the endothelial glycocalyx disruption surrogate marker syndecan-1. Conclusion: This unbiased proteome analysis provides a comprehensive insight in the inflammatory response in DENV infection and its association with glycocalyx disruption.
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Affiliation(s)
- Fadel Muhammad Garishah
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
- Center for Tropical and Infectious Diseases (CENTRID), Faculty of Medicine, Diponegoro University, Dr. Kariadi Hospital, Semarang, Indonesia
| | - Collins K. Boahen
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Internal Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Nadira Vadaq
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
- Center for Tropical and Infectious Diseases (CENTRID), Faculty of Medicine, Diponegoro University, Dr. Kariadi Hospital, Semarang, Indonesia
| | - Setyo G. Pramudo
- Department of Internal Medicine, Diponegoro National University Hospital, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
- Department of Internal Medicine, William Booth Hospital, Semarang, Indonesia
| | - Rahajeng N. Tunjungputri
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
- Center for Tropical and Infectious Diseases (CENTRID), Faculty of Medicine, Diponegoro University, Dr. Kariadi Hospital, Semarang, Indonesia
| | - Silvita Fitri Riswari
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
- Research Center for Care and Control of Infectious Disease (RC3ID), Universitas Padjadjaran, Bandung, Indonesia
- Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Ronald P. van Rij
- Department of Medical Microbiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Bachti Alisjahbana
- Research Center for Care and Control of Infectious Disease (RC3ID), Universitas Padjadjaran, Bandung, Indonesia
- Department of Internal Medicine, Hasan Sadikin General Hospital, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Muhammad Hussein Gasem
- Center for Tropical and Infectious Diseases (CENTRID), Faculty of Medicine, Diponegoro University, Dr. Kariadi Hospital, Semarang, Indonesia
- Department of Internal Medicine, Diponegoro National University Hospital, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - André J. A. M. van der Ven
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Quirijn de Mast
- Department of Internal Medicine and the Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
- * E-mail:
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6
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Liu X, Liu Y, Wu H, He Z, Li Z, Qin Z, Yu J, Zhu L, Wu Q, Xiao W, Shen C, Wan C, Zhang B, Zhao W. Murine diabetic models for dengue virus infection. J Med Virol 2022; 94:5943-5953. [PMID: 36000451 DOI: 10.1002/jmv.28088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/26/2022] [Accepted: 08/16/2022] [Indexed: 01/06/2023]
Abstract
Dengue virus (DENV) is a critical public health concern in tropical and subtropical regions worldwide. Thus, immunocompetent murine models of DENV infection with robust viremia are required for vaccine studies. Diabetes is highly prevalent worldwide, making it frequent comorbidity in patients with dengue fever. Therefore, murine models are needed to understand viral pathogenesis and disease progression. Acquired-induced and inherently diabetic C57BL/6 and db/db mice were inoculated with DENV-3 via the tail vein. After infection, both the diabetic C57BL/6 and db/db mice showed obvious weight loss with clinical manifestations. Quantitative reverse-transcription polymerase chain reaction revealed robust and replicable viremia in the two types of diabetic mice. Immunohistochemical detection showed persistent DENV-3 infection in the liver. Enzyme-linked immunosorbent assay for cytokine detection revealed that diabetic mice showed more severe inflammatory responses than did nondiabetic mice, and significant histological alterations were observed in diabetic mice. Thus, the diabetic mice were more susceptible to DENV infection than the nondiabetic mice. Taken together, we established two types of immunocompetent diabetic mice for DENV infection, which can be used to further study the mechanisms of dengue pathogenesis in diabetes and to develop antiviral pharmaceuticals and treatments.
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Affiliation(s)
- Xuling Liu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Yingfang Liu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Hao Wu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Zihan He
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Zhuoyun Li
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Zhiran Qin
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Jianhai Yu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Li Zhu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Qinghua Wu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Weiwei Xiao
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Chenguang Shen
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Chengsong Wan
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Bao Zhang
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
| | - Wei Zhao
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, People's Republic of China
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Coutinho-da-Silva MS, Sucupira PHF, Bicalho KA, Campi-Azevedo AC, Brito-de-Sousa JP, Peruhype-Magalhães V, Rios M, Teixeira-Carvalho A, Coelho-dos-Reis JGA, Antonelli LRDV, de Rezende VB, de Melo FLR, Garcia CC, Silva-Andrade JC, da Costa-Rocha IA, Bastos MDS, da Rocha LA, Silva VA, Ferreira EDS, Marinho EPM, Costa AG, Gomes MDS, Amaral LR, Furtado ECDS, da Silva EVP, Ramos BA, dos Santos ÉB, Freitas MNO, Vasconcelos PFDC, Martins-Filho OA, Araújo MSS, Ferreira MS, Martins LC. Serum Soluble Mediator Profiles and Networks During Acute Infection With Distinct DENV Serotypes. Front Immunol 2022; 13:892990. [PMID: 35711447 PMCID: PMC9193801 DOI: 10.3389/fimmu.2022.892990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
A panoramic analysis of chemokines, pro-inflammatory/regulatory cytokines, and growth factors was performed in serum samples from patients with acute DENV infection (n=317) by a high-throughput microbeads array. Most soluble mediators analyzed were increased in DENV patients regardless of the DENV serotype. The substantial increase (≥10-fold) of CXCL10, IL-6, and IFN-γ, and decreased levels of PDGF (<0.4-fold) was universally identified in all DENV serotypes. Of note, increased levels of CXCL8, CCL4, and IL-12 (≥3-9-fold) were selectively observed in DENV2 as compared to DENV1 and DENV4. Heatmap and biomarker signatures further illustrated the massive release of soluble mediators observed in DENV patients, confirming the marked increase of several soluble mediators in DENV2. Integrative correlation matrices and networks showed that DENV infection exhibited higher connectivity among soluble mediators. Of note, DENV2 displayed a more complex network, with higher connectivity involving a higher number of soluble mediators. The timeline kinetics (Day 0-1, D2, D3, D4-6) analysis additionally demonstrated differences among DENV serotypes. While DENV1 triggers a progressive increase of soluble mediators towards D3 and with a decline at D4-6, DENV2 and DENV4 develop with a progressive increase towards D4-6 with an early plateau observed in DENV4. Overall, our results provided a comprehensive overview of the immune response elicited by DENV infection, revealing that infection with distinct DENV serotypes causes distinct profiles, rhythms, and dynamic network connectivity of soluble mediators. Altogether, these findings may provide novel insights to understand the pathogenesis of acute infection with distinct DENV serotypes.
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Affiliation(s)
| | | | - Kelly Alves Bicalho
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
| | | | | | | | - Maria Rios
- Office of Blood Research and Review (OBRR), Center for Biologics Evaluation and Research (CBER), U.S. Food and Drug Administration (FDA), Silver Spring, MD, United States
| | | | | | | | | | - Fernanda Ludolf Ribeiro de Melo
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Cristiana Couto Garcia
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
- Laboratório de Vírus Respiratórios e Sarampo, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | | | | | - Michele de Souza Bastos
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
- Escola de Enfermagem de Manaus, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
| | - Lucia Alves da Rocha
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
- Escola de Enfermagem de Manaus, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
| | - Valderjane Aprigio Silva
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
| | - Ewerton da Silva Ferreira
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
| | | | - Allyson Guimarães Costa
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
- Escola de Enfermagem de Manaus, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Brazil
| | - Matheus de Souza Gomes
- Laboratório de Bioinformática e Análises Moleculares, Rede Multidisciplinar de Pesquisa, Ciência e Tecnologia, Universidade Federal de Uberlândia (UFU), Patos de Minas, Brazil
| | - Laurence Rodrigues Amaral
- Laboratório de Bioinformática e Análises Moleculares, Rede Multidisciplinar de Pesquisa, Ciência e Tecnologia, Universidade Federal de Uberlândia (UFU), Patos de Minas, Brazil
| | | | | | - Bruna Alves Ramos
- Departamento de Arboviroses e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Brazil
| | - Éder Barros dos Santos
- Departamento de Arboviroses e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Brazil
| | | | | | - Olindo Assis Martins-Filho
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
- *Correspondence: Olindo Assis Martins-Filho, ; Márcio Sobreira Silva Araújo,
| | - Márcio Sobreira Silva Araújo
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
- *Correspondence: Olindo Assis Martins-Filho, ; Márcio Sobreira Silva Araújo,
| | | | - Livia Carício Martins
- Departamento de Arboviroses e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Brazil
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8
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Abdul Rahman NA, Mohamad Norpi AS, Nordin ML, Mohd Amin MCI, Ahmad Fuaad AAH, Muhammad Azami NA, Marasini N, Azmi F. DENV-Mimetic Polymersome Nanoparticles Bearing Multi-Epitope Lipopeptides Antigen as the Next-Generation Dengue Vaccine. Pharmaceutics 2022; 14:pharmaceutics14010156. [PMID: 35057051 PMCID: PMC8781246 DOI: 10.3390/pharmaceutics14010156] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/06/2022] [Accepted: 01/08/2022] [Indexed: 02/04/2023] Open
Abstract
Dengue remains a severe threat to public health. The safety and efficacy of the licensed dengue vaccine is not clinically satisfactory, which necessitate the need of new approach in designing an effective dengue vaccine without eliciting adverse reaction. Herein, we have designed a lipidated multi-epitope peptide vaccine (LipoDV) that can elicit highly targeted humoral and cell-mediated immune responses. To improve its immunogenicity, LipoDV was presented on the surface of MPLA-functionalized polymersome nanoparticles (PNs-LipoDV-MPLA). The as-constructed vaccine delivery platform resembles the structural morphology of DENV owing to its spherical nanoscale particle size and surface immunostimulatory properties given by LipoDV and MPLA that emulating the functional role of DENV E and prM/M proteins respectively. A proof-of-concept study demonstrated that BALB/c mice immunized with PNs-LipoDV-MPLA induced a stronger antigen-specific antibody response with an enhanced cell-mediated immunity as characterized by the elevated IFN-γ secretion in comparison to other tested vaccine candidates which possess a lesser structural trait of DENV. The DENV-mimicking nanoparticles vaccine exhibited negligible toxicity as analyzed by hemolytic test, MTT assay, histopathological examination and abnormal toxicity test on immunized mice. Collectively, our study provides a strong foundation in designing an effective peptide-based vaccine delivery platform against DENV infection.
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Affiliation(s)
- Nur Adilah Abdul Rahman
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (N.A.A.R.); (A.S.M.N.); (M.L.N.); (M.C.I.M.A.)
| | - Abdin Shakirin Mohamad Norpi
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (N.A.A.R.); (A.S.M.N.); (M.L.N.); (M.C.I.M.A.)
- Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur, No. 3 Jalan Greentown, Ipoh 30450, Malaysia
| | - Muhammad Luqman Nordin
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (N.A.A.R.); (A.S.M.N.); (M.L.N.); (M.C.I.M.A.)
- Faculty of Veterinary Medicine, Universiti Malaysia Kelantan, Pengkalan Chepa, Kota Bharu 16100, Malaysia
| | - Mohd Cairul Iqbal Mohd Amin
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (N.A.A.R.); (A.S.M.N.); (M.L.N.); (M.C.I.M.A.)
| | | | - Nor Azila Muhammad Azami
- UKM Medical Molecular Biology Institute, University Kebangsaan Malaysia, Jalan Ya’acob Latiff, Bandar Tun Razak, Cheras, Kuala Lumpur 56000, Malaysia;
| | - Nirmal Marasini
- Faculty of Medicine, School of Biomedical Science, The University of Queensland, St. Lucia, QLD 4072, Australia;
| | - Fazren Azmi
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (N.A.A.R.); (A.S.M.N.); (M.L.N.); (M.C.I.M.A.)
- Correspondence: ; Tel.: +60-3-92897487
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9
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Phetsouphanh C, Phalora P, Hackstein CP, Thornhill J, Munier CML, Meyerowitz J, Murray L, VanVuuren C, Goedhals D, Drexhage L, Russell RA, Sattentau QJ, Mak JYW, Fairlie DP, Fidler S, Kelleher AD, Frater J, Klenerman P. Human MAIT cells respond to and suppress HIV-1. eLife 2021; 10:e50324. [PMID: 34951583 PMCID: PMC8752121 DOI: 10.7554/elife.50324] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 12/23/2021] [Indexed: 11/13/2022] Open
Abstract
Human MAIT cells sit at the interface between innate and adaptive immunity, are polyfunctional and are capable of killing pathogen infected cells via recognition of the Class IB molecule MR1. MAIT cells have recently been shown to possess an antiviral protective role in vivo and we therefore sought to explore this in relation to HIV-1 infection. There was marked activation of MAIT cells in vivo in HIV-1-infected individuals, which decreased following ART. Stimulation of THP1 monocytes with R5 tropic HIVBAL potently activated MAIT cells in vitro. This activation was dependent on IL-12 and IL-18 but was independent of the TCR. Upon activation, MAIT cells were able to upregulate granzyme B, IFNγ and HIV-1 restriction factors CCL3, 4, and 5. Restriction factors produced by MAIT cells inhibited HIV-1 infection of primary PBMCs and immortalized target cells in vitro. These data reveal MAIT cells to be an additional T cell population responding to HIV-1, with a potentially important role in controlling viral replication at mucosal sites.
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Affiliation(s)
- Chansavath Phetsouphanh
- Peter Medawar Building for Pathogen Research, University of OxfordOxfordUnited Kingdom
- The Kirby Institute, University of New South WalesSydneyAustralia
| | - Prabhjeet Phalora
- Peter Medawar Building for Pathogen Research, University of OxfordOxfordUnited Kingdom
| | | | | | | | - Jodi Meyerowitz
- Peter Medawar Building for Pathogen Research, University of OxfordOxfordUnited Kingdom
| | - Lyle Murray
- Peter Medawar Building for Pathogen Research, University of OxfordOxfordUnited Kingdom
| | | | - Dominique Goedhals
- Division of Virology, University of the Free State/National Health Laboratory ServiceFree StateSouth Africa
| | - Linnea Drexhage
- Sir William Dunn School of Pathology, University of OxfordOxfordUnited Kingdom
| | - Rebecca A Russell
- Sir William Dunn School of Pathology, University of OxfordOxfordUnited Kingdom
| | - Quentin J Sattentau
- Sir William Dunn School of Pathology, University of OxfordOxfordUnited Kingdom
| | - Jeffrey YW Mak
- ARC Centre of Excellence in Advanced Molecular Imaging, Institute for Molecular Bioscience, The University of QueenslandBrisbaneAustralia
- ARC Centre of Excellence in Advanced Molecular Imaging, Institute for Molecular Bioscience, The University of QueenslandBrisbaneAustralia
| | - David P Fairlie
- ARC Centre of Excellence in Advanced Molecular Imaging, Institute for Molecular Bioscience, The University of QueenslandBrisbaneAustralia
- ARC Centre of Excellence in Advanced Molecular Imaging, Institute for Molecular Bioscience, The University of QueenslandBrisbaneAustralia
| | | | | | - John Frater
- Peter Medawar Building for Pathogen Research, University of OxfordOxfordUnited Kingdom
| | - Paul Klenerman
- Peter Medawar Building for Pathogen Research, University of OxfordOxfordUnited Kingdom
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10
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Lignosus rhinocerus TM02® sclerotia extract inhibits dengue virus replication and Infection. J Herb Med 2021. [DOI: 10.1016/j.hermed.2021.100505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Rocha RF, Del Sarto JL, Gomes GF, Gonçalves MP, Rachid MA, Smetana JHC, Souza DG, Teixeira MM, Marques RE. Type I interferons are essential while type II interferon is dispensable for protection against St. Louis encephalitis virus infection in the mouse brain. Virulence 2021; 12:244-259. [PMID: 33410731 PMCID: PMC7808420 DOI: 10.1080/21505594.2020.1869392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 12/09/2020] [Accepted: 12/22/2020] [Indexed: 01/24/2023] Open
Abstract
St. Louis encephalitis virus (SLEV) is a neglected mosquito-borne flavivirus that causes severe neurological disease in humans. SLEV replication in the central nervous system (CNS) induces the local production of interferons (IFNs), which are attributed to host protection. The antiviral response to SLEV infection in the CNS is not completely understood, which led us to characterize the roles of IFNs using mouse models of St. Louis encephalitis. We infected mice deficient in type I IFN receptor (ABR-/-) or deficient in Type II IFN (IFNγ-/-) and assessed the contribution of each pathway to disease development. We found that type I and II IFNs play different roles in SLEV infection. Deficiency in type I IFN signaling was associated to an early and increased mortality, uncontrolled SLEV replication and impaired ISG expression, leading to increased proinflammatory cytokine production and brain pathology. Conversely, IFNγ-/- mice were moderately resistant to SLEV infection. IFNγ deficiency caused no changes to viral load or SLEV-induced encephalitis and did not change the expression of ISGs in the brain. We found that type I IFN is essential for the control of SLEV replication whereas type II IFN was not associated with protection in this model.
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Affiliation(s)
- Rebeca Froes Rocha
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
- Graduate Program in Genetics and Molecular Biology, State University of Campinas (UNICAMP), Campinas, Brazil
- Immunopharmacology Laboratory, Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Juliana L. Del Sarto
- Immunopharmacology Laboratory, Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Giovanni F. Gomes
- Laboratório de Neurofarmacologia, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Mariana P. Gonçalves
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
- Graduate Program in Genetics and Molecular Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Milene A. Rachid
- Laboratório de Apoptose, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Juliana H. C. Smetana
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Daniele G. Souza
- Laboratório de Interação Microrganismo-Hospedeiro, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Mauro Martins Teixeira
- Immunopharmacology Laboratory, Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Rafael Elias Marques
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
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12
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IL-18: The Forgotten Cytokine in Dengue Immunopathogenesis. J Immunol Res 2021; 2021:8214656. [PMID: 34840991 PMCID: PMC8626198 DOI: 10.1155/2021/8214656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/25/2021] [Accepted: 11/05/2021] [Indexed: 12/28/2022] Open
Abstract
Dengue fever is an infection by the dengue virus (DENV) transmitted by vector mosquitoes. It causes many infections in tropical and subtropical countries every year, thus posing a severe disease threat. Cytokine storms, one condition where many proinflammatory cytokines are mass-produced, might lead to cellular dysfunction in tissue/organ failures and often facilitate severe dengue disease in patients. Interleukin- (IL-) 18, similar to IL-1β, is a proinflammatory cytokine produced during inflammation following inflammasome activation. Inflammatory stimuli, including microbial infections, damage signals, and cytokines, all induce the production of IL-18. High serum IL-18 is remarkably correlated with severely ill dengue patients; however, its possible roles have been less explored. Based on the clinical and basic findings, this review discusses the potential immunopathogenic role of IL-18 when it participates in DENV infection and dengue disease progression based on existing findings and related past studies.
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13
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Coelho SVA, Rust NM, Vellasco L, Papa MP, Pereira ASG, da Silva Palazzo MF, Juliano MA, Costa SM, Alves AMB, Cordeiro MT, Marques ETA, Scharfstein J, de Arruda LB. Contact System Activation in Plasma from Dengue Patients Might Harness Endothelial Virus Replication through the Signaling of Bradykinin Receptors. Pharmaceuticals (Basel) 2021; 14:ph14010056. [PMID: 33445640 PMCID: PMC7827195 DOI: 10.3390/ph14010056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 01/06/2021] [Indexed: 02/06/2023] Open
Abstract
Since exacerbated inflammation and microvascular leakage are hallmarks of dengue virus (DENV) infection, here we interrogated whether systemic activation of the contact/kallikrein-kinin system (KKS) might hamper endothelial function. In vitro assays showed that dextran sulfate, a potent contact activator, failed to generate appreciable levels of activated plasma kallikrein (PKa) in the large majority of samples from a dengue cohort (n = 70), irrespective of severity of clinical symptoms. Impaired formation of PKa in dengue-plasmas correlated with the presence of cleaved Factor XII and high molecular weight kininogen (HK), suggesting that the prothrombogenic contact system is frequently triggered during the course of infection. Using two pathogenic arboviruses, DENV or Zika virus (ZIKV), we then asked whether exogenous BK could influence the outcome of infection of human brain microvascular endothelial cells (HBMECs). Unlike the unresponsive phenotype of Zika-infected HBMECs, we found that BK, acting via B2R, vigorously stimulated DENV-2 replication by reverting nitric oxide-driven apoptosis of endothelial cells. Using the mouse model of cerebral dengue infection, we next demonstrated that B2R targeting by icatibant decreased viral load in brain tissues. In summary, our study suggests that contact/KKS activation followed by BK-induced enhancement of DENV replication in the endothelium may underlie microvascular pathology in dengue.
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Affiliation(s)
- Sharton V. A. Coelho
- Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (S.V.A.C.); (N.M.R.); (M.P.P.); (A.S.G.P.)
| | - Naiara M. Rust
- Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (S.V.A.C.); (N.M.R.); (M.P.P.); (A.S.G.P.)
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (L.V.); (M.F.d.S.P.)
| | - Lucas Vellasco
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (L.V.); (M.F.d.S.P.)
| | - Michelle P. Papa
- Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (S.V.A.C.); (N.M.R.); (M.P.P.); (A.S.G.P.)
| | - Aline S. G. Pereira
- Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (S.V.A.C.); (N.M.R.); (M.P.P.); (A.S.G.P.)
| | - Matheus Ferreira da Silva Palazzo
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (L.V.); (M.F.d.S.P.)
| | - Maria Aparecida Juliano
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo 04023-062, Brazil;
| | - Simone M. Costa
- Laboratório de Biotecnologia e Fisiologia de Infecções Virais, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil; (S.M.C.); (A.M.B.A.)
| | - Ada M. B. Alves
- Laboratório de Biotecnologia e Fisiologia de Infecções Virais, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil; (S.M.C.); (A.M.B.A.)
| | - Marli T. Cordeiro
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Recife 50740-465, Brazil; (M.T.C.); (E.T.A.M.)
| | - Ernesto T. A. Marques
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Recife 50740-465, Brazil; (M.T.C.); (E.T.A.M.)
- Department of Infectious Diseases, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Júlio Scharfstein
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (L.V.); (M.F.d.S.P.)
- Correspondence: (J.S.); (L.B.d.A.)
| | - Luciana B. de Arruda
- Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (S.V.A.C.); (N.M.R.); (M.P.P.); (A.S.G.P.)
- Correspondence: (J.S.); (L.B.d.A.)
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14
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Lim SYM, Chieng JY, Pan Y. Recent insights on anti-dengue virus (DENV) medicinal plants: review on in vitro, in vivo and in silico discoveries. ALL LIFE 2020. [DOI: 10.1080/26895293.2020.1856192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Sharoen Yu Ming Lim
- Division of Biomedical Science, School of Pharmacy, University of Nottingham Malaysia, Semenyih, Malaysia
| | | | - Yan Pan
- Division of Biomedical Science, School of Pharmacy, University of Nottingham Malaysia, Semenyih, Malaysia
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15
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Valproic acid inhibits interferon-γ production by NK cells and increases susceptibility to Listeria monocytogenes infection. Sci Rep 2020; 10:17802. [PMID: 33082490 PMCID: PMC7576816 DOI: 10.1038/s41598-020-74836-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 10/07/2020] [Indexed: 12/22/2022] Open
Abstract
Valproic acid (VPA) is a drug commonly used for epileptic seizure control. Recently, it has been shown that VPA alters the activation of several immune cells, including Natural Killer (NK) cells, which play an important role in the containment of viruses and intracellular bacteria. Although VPA can increase susceptibility to extracellular pathogens, it is unknown whether the suppressor effect of VPA could affect the course of intracellular bacterial infection. This study aimed to evaluate the role of VPA during Listeria monocytogenes (L.m) infection, and whether NK cell activation was affected. We found that VPA significantly augmented mortality in L.m infected mice. This effect was associated with increased bacterial load in the spleen, liver, and blood. Concurrently, decreased levels of IFN-γ in serum and lower splenic indexes were observed. Moreover, in vitro analysis showed that VPA treatment decreased the frequency of IFN-γ-producing NK cells within L.m infected splenocytes. Similarly, VPA inhibited the production of IFN-γ by NK cells stimulated with IL-12 and IL-18, which is a crucial system for early IFN-γ production in listeriosis. Finally, VPA decreased the phosphorylation of STAT4, p65, and p38, without affecting the expression of IL-12 and IL-18 receptors. Altogether, our results indicate that VPA increases the susceptibility to Listeria monocytogenes infection and suggest that NK cell is one of the main targets of VPA, but further work is needed to ascertain this effect.
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16
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Jearanaiwitayakul T, Sunintaboon P, Chawengkittikul R, Limthongkul J, Midoeng P, Warit S, Ubol S. Nanodelivery system enhances the immunogenicity of dengue-2 nonstructural protein 1, DENV-2 NS1. Vaccine 2020; 38:6814-6825. [PMID: 32829977 DOI: 10.1016/j.vaccine.2020.08.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/19/2020] [Accepted: 08/09/2020] [Indexed: 12/11/2022]
Abstract
Nonstructural protein 1 (NS1) of dengue virus (DENV) is currently recognized as a dengue vaccine candidate. Unfortunately, most of non-replicating immunogens typically stimulate unsatisfactory immune responses, thus, the additional adjuvant is required. In this study, C-terminal truncated DENV-2 NS1 loaded in N,N,N, trimethyl chitosan nanoparticles (NS11-279TMC NPs) was prepared through the ionic gelation method. The immunogenicity of NS11-279TMC NPs was investigated using human ex vivo as well as the murine model. Through a human ex vivo model, it was demonstrated in this study that not only can TMC particles effectively deliver NS11-279 protein into monocyte-derived dendritic cells (MoDCs), but also potently stimulate those cells, resulting in increased expression of maturation marker (CD83), costimulating molecules (CD80, CD86 and HLA-DR) and markedly secreted various types of innate immune cytokines/chemokines. Moreover, mice administered with NS11-279TMC NPs strongly elicited both antibody and T cell responses, produced higher levels of IgG, IgG1, IgG2a and potently activated CD8+ T cells, as compared to mice administered with soluble NS11-279. Importantly, we further demonstrated that anti-NS11-279 antibody induced by this platform of NS11-279 effectively eliminated DENV-2 infected cells through antibody dependent complement-mediated cytotoxicity. Significantly, anti-DENV2 NS11-279 antibody exerted cross-antiviral activity against DENV-1 and -4 but not against DENV-3 infected cells. These findings demonstrate that TMC exerts a desirable adjuvant for enhancing delivery and antigenicity of NS1 based dengue vaccine.
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Affiliation(s)
| | - Panya Sunintaboon
- Department of Chemistry, Faculty of Science, Mahidol University, Salaya, Nakornpatom 73170, Thailand.
| | | | - Jitra Limthongkul
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
| | - Panuwat Midoeng
- Division of Pathology, Army Institute of Pathology, Phramongkutklao Hospital, Bangkok, Thailand.
| | - Saradee Warit
- Tuberculosis Research Laboratory, Medical Molecular Biology Research Unit, BIOTEC, National Science and Technology Development Agency, Thailand Science Park, Pathum Thani, Thailand..
| | - Sukathida Ubol
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
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17
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Rex DAB, Agarwal N, Prasad TSK, Kandasamy RK, Subbannayya Y, Pinto SM. A comprehensive pathway map of IL-18-mediated signalling. J Cell Commun Signal 2019; 14:257-266. [PMID: 31863285 DOI: 10.1007/s12079-019-00544-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 12/06/2019] [Indexed: 02/07/2023] Open
Abstract
Interleukin-18 (IL-18) is a member of the IL-1 family of cytokines and was initially described as an IFN-γ-inducing factor derived from anti-CD3-stimulated T-helper (Th)1 cells. IL-18 plays a significant role in the activation of hematopoietic cell types mediating both Th1 and Th2 responses and is the primary inducer of interferon-γ in these cells. The biological activity of IL-18 is mediated through its binding to the IL-18 receptor complex and activation of nuclear factor-κB (NF-κB), culminating in the production and release of several cytokines, chemokines, and cellular adhesion molecules. In certain cell types, IL-18 also activates mitogen-activated protein kinases (MAPKs) and phosphoinositide 3-kinase/ AKT serine/threonine kinase (PI3K/AKT) signaling modules leading to the production and release of proinflammatory cytokines. IL-18-mediated signaling acts as one of the vital components of the immunomodulatory cytokine networks involved in host defense, inflammation, and tissue regeneration. Albeit its biomedical importance, a comprehensive resource of IL-18 mediated signaling pathway is currently lacking. In this study, we report on the development of an integrated pathway map of IL-18/IL-18R signaling. The pathway map was developed through literature mining from published literature based on manual curation guidelines adapted from NetPath and includes information on 16 protein-protein interaction events, 38 enzyme-catalysis events, 12 protein translocation events, 26 activations/inhibition events, transcriptional regulators, 230 gene regulation events and 84 induced protein expression events. The IL-18 signaling pathway can be freely accessed through the WikiPathways database (https://www.wikipathways.org/index.php/Pathway:WP4754).
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Affiliation(s)
- D A B Rex
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - Nupur Agarwal
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - T S Keshava Prasad
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - Richard K Kandasamy
- Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491, Trondheim, Norway
| | - Yashwanth Subbannayya
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India. .,Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491, Trondheim, Norway.
| | - Sneha M Pinto
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India. .,Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491, Trondheim, Norway.
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18
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Petitdemange C, Maucourant C, Tarantino N, Rey J, Vieillard V. Glycogen synthetase kinase 3 inhibition drives MIC-A/B to promote cytokine production by human natural killer cells in Dengue virus type 2 infection. Eur J Immunol 2019; 50:342-352. [PMID: 31743425 DOI: 10.1002/eji.201948284] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/11/2019] [Accepted: 11/15/2019] [Indexed: 01/23/2023]
Abstract
Dengue virus (DENV) is the most widespread arbovirus worldwide and is responsible for major outbreaks. The host's immune response plays a crucial role in controlling this infection but might also contribute to the promotion of viral spread and immunopathology. In response to DENV infection, NK cells preferentially produce cytokines and are cytotoxic in the presence of specific antibodies. Here, we identified that DENV-2 inhibits glycogen synthase kinase 3 (GSK-3) activity to subsequently induce MHC class-1-related chain (MIC) A and MIC-B expression and IL-12 production in monocyte-derived DCs, independently of the STAT-3 pathway. The inhibition of GSK-3 by DENV-2 or small molecules induced MIC-A/B expression on monocyte-derived DCs, resulting in autologous NK cells of a specific increase in IFN-γ and TNF-α production, in the absence of direct cytotoxicity. Together, these findings identified GSK-3 as a regulator of MIC-A/B expression and suggested its role in DENV-2 infection to specifically induce cytokine production by NK cells.
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Affiliation(s)
- Caroline Petitdemange
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, UPMC, Paris, France
| | - Christopher Maucourant
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, UPMC, Paris, France
| | - Nadine Tarantino
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, UPMC, Paris, France
| | - Juliana Rey
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, UPMC, Paris, France
| | - Vincent Vieillard
- Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Sorbonne Université, UPMC, Paris, France
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19
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Kuczera D, Assolini JP, Tomiotto-Pellissier F, Pavanelli WR, Silveira GF. Highlights for Dengue Immunopathogenesis: Antibody-Dependent Enhancement, Cytokine Storm, and Beyond. J Interferon Cytokine Res 2019; 38:69-80. [PMID: 29443656 DOI: 10.1089/jir.2017.0037] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Infection with dengue virus (DENV) can lead to a wide spectrum of clinical presentations, ranging from asymptomatic infection to death. It is estimated that the disease manifests only in 90 million cases out of the total 390 million yearly infections. Even though research has not yet elucidated which are the precise pathophysiological mechanisms that trigger severe forms of dengue, the infection elicits a critical immune response significant for dengue pathogenesis development. Understanding how the immune response to DENV is established and how it can resolve the infection or turn into an immunopathology is of great importance in DENV research. Currently, studies have extensively debated 2 hypotheses involving immune response: antibody-dependent enhancement and cytokine storm. However, despite its undeniable importance in severe forms of the disease, these 2 hypotheses are based on a primed immune status resulting from previous heterologous infection, abstaining them from explaining the severe forms of dengue in naive immune subjects, for example. Thus, it seems that a more intricate arrangement of causes and conditions must be achieved to severe dengue to occur. Among them, the cytokine network signature elicited, in association with viral aspects deserves special attention regarding the establishment of infection and evolution to pathogenesis. In this work, we intend to shed light on how those elements contribute to severe dengue development.
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Affiliation(s)
- Diogo Kuczera
- 1 Laboratório de Virologia Molecular, Instituto Carlos Chagas , ICC/Fiocruz/PR, Curitiba, Brazil
| | - João Paulo Assolini
- 2 Departamento de Ciências Patológicas, Centro de Ciências Biológicas , Universidade Estadual de Londrina, Londrina, Brazil
| | - Fernanda Tomiotto-Pellissier
- 2 Departamento de Ciências Patológicas, Centro de Ciências Biológicas , Universidade Estadual de Londrina, Londrina, Brazil
| | - Wander Rogério Pavanelli
- 2 Departamento de Ciências Patológicas, Centro de Ciências Biológicas , Universidade Estadual de Londrina, Londrina, Brazil
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20
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Ahammad F, Tengku Abd Rashid TR, Mohamed M, Tanbin S, Ahmad Fuad FA. Contemporary Strategies and Current Trends in Designing Antiviral Drugs against Dengue Fever via Targeting Host-Based Approaches. Microorganisms 2019; 7:E296. [PMID: 31466307 PMCID: PMC6780377 DOI: 10.3390/microorganisms7090296] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/07/2019] [Accepted: 08/07/2019] [Indexed: 02/06/2023] Open
Abstract
Dengue virus (DENV) is an arboviral human pathogen transmitted through mosquito bite that infects an estimated ~400 million humans (~5% of the global population) annually. To date, no specific therapeutics have been developed that can prevent or treat infections resulting from this pathogen. DENV utilizes numerous host molecules and factors for transcribing the single-stranded ~11 kb positive-sense RNA genome. For example, the glycosylation machinery of the host is required for viral particles to assemble in the endoplasmic reticulum. Since a variety of host factors seem to be utilized by the pathogens, targeting these factors may result in DENV inhibitors, and will play an important role in attenuating the rapid emergence of other flaviviruses. Many experimental studies have yielded findings indicating that host factors facilitate infection, indicating that the focus should be given to targeting the processes contributing to pathogenesis along with many other immune responses. Here, we provide an extensive literature review in order to elucidate the progress made in the development of host-based approaches for DENV viral infections, focusing on host cellular mechanisms and factors responsible for viral replication, aiming to aid the potential development of host-dependent antiviral therapeutics.
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Affiliation(s)
- Foysal Ahammad
- Department of Biotechnology Engineering, International Islamic University Malaysia, Kuala Lumpur 50728, Malaysia
| | | | - Maizan Mohamed
- Faculty of Veterinary Medicine, Universiti Malaysia Kelantan, Locked Bag 36, Pengkalan Chepa, Kota Bharu 16100, Kelantan, Malaysia
| | - Suriyea Tanbin
- Department of Biotechnology Engineering, International Islamic University Malaysia, Kuala Lumpur 50728, Malaysia
| | - Fazia Adyani Ahmad Fuad
- Department of Biotechnology Engineering, International Islamic University Malaysia, Kuala Lumpur 50728, Malaysia.
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21
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Zandi K, Bassit L, Amblard F, Cox BD, Hassandarvish P, Moghaddam E, Yueh A, Libanio Rodrigues GO, Passos I, Costa VV, AbuBakar S, Zhou L, Kohler J, Teixeira MM, Schinazi RF. Nucleoside Analogs with Selective Antiviral Activity against Dengue Fever and Japanese Encephalitis Viruses. Antimicrob Agents Chemother 2019; 63:e00397-19. [PMID: 31061163 PMCID: PMC6591611 DOI: 10.1128/aac.00397-19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/03/2019] [Indexed: 02/07/2023] Open
Abstract
Dengue virus (DENV) and Japanese encephalitis virus (JEV) are important arthropod-borne viruses from the Flaviviridae family. DENV is a global public health problem with significant social and economic impacts, especially in tropical and subtropical areas. JEV is a neurotropic arbovirus endemic to east and southeast Asia. There are no U.S. FDA-approved antiviral drugs available to treat or to prevent DENV and JEV infections, leaving nearly one-third of the world's population at risk for infection. Therefore, it is crucial to discover potent antiviral agents against these viruses. Nucleoside analogs, as a class, are widely used for the treatment of viral infections. In this study, we discovered nucleoside analogs that possess potent and selective anti-JEV and anti-DENV activities across all serotypes in cell-based assay systems. Both viruses were susceptible to sugar-substituted 2'-C-methyl analogs with either cytosine or 7-deaza-7-fluoro-adenine nucleobases. Mouse studies confirmed the anti-DENV activity of these nucleoside analogs. Molecular models were assembled for DENV serotype 2 (DENV-2) and JEV RNA-dependent RNA polymerase replication complexes bound to nucleotide inhibitors. These models show similarities between JEV and DENV-2, which recognize the same nucleotide inhibitors. Collectively, our findings provide promising compounds and a structural rationale for the development of direct-acting antiviral agents with dual activity against JEV and DENV infections.
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Affiliation(s)
- Keivan Zandi
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
- Tropical Infectious Disease Research and Education Center, Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Leda Bassit
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Franck Amblard
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Bryan D Cox
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Pouya Hassandarvish
- Tropical Infectious Disease Research and Education Center, Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Ehsan Moghaddam
- Tropical Infectious Disease Research and Education Center, Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Andrew Yueh
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Taiwan, Republic of China
| | - Gisele Olinto Libanio Rodrigues
- Center for Research and Drug Development, Instituto de Ciencias Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ingredy Passos
- Center for Research and Drug Development, Instituto de Ciencias Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Vivian V Costa
- Center for Research and Drug Development, Instituto de Ciencias Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Sazaly AbuBakar
- Tropical Infectious Disease Research and Education Center, Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Longhu Zhou
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - James Kohler
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Mauro M Teixeira
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
- Center for Research and Drug Development, Instituto de Ciencias Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Raymond F Schinazi
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
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22
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Valero N, Mosquera J, Torres M, Duran A, Velastegui M, Reyes J, Fernandez M, Fernandez G, Veliz T. Increased serum ferritin and interleukin-18 levels in children with dengue. Braz J Microbiol 2019; 50:649-656. [PMID: 31243722 DOI: 10.1007/s42770-019-00105-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 06/12/2019] [Indexed: 12/12/2022] Open
Abstract
Activated monocytes/macrophages that produce a cytokine storm play an important role in the pathogenesis of dengue. Interleukin-18 (IL-18) is a proinflammatory cytokine produced by monocyte/macrophages that is increased during dengue. Ferritin is an acute-phase reactant and expressed by cells of the reticulo-endothelial system in response to infection by dengue virus. The aims of this study were to analyze the simultaneous expression of both IL-18 and ferritins in children infected by diverse serotypes of dengue virus (DENV) and determine their association with dengue severity. In this regard, children with dengue (n = 25) and healthy controls with similar age and sex (n = 20) were analyzed for circulating ferritin and cytokines. Monocytes were isolated by Hystopaque gradient and co-cultured with DENV-2. IL-18 and ferritin contents in blood, and IL-18 in culture supernatants were determined by ELISA. Increased levels of ferritin and IL-18 (p < 0.0001) were observed in dengue patients, not associated to NS1expression or type of infection (primary or secondary). Highest values of both molecules (p < 0.001) were observed in dengue with warning signs and severe dengue. Differential effect on IL-18/ferritin production was observed associated to viral serotype infection. There were no correlations between ferritin vs. IL-18 production, ferritin vs. NS1 status, and IL-18 vs. NS1 status. Viral-infected monocyte cultures showed increased production of IL-18 (p < 0.001). In conclusion, increased circulating ferritin and IL-18 are expressed in children infected by different serotypes of DENV associated with dengue severity.
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Affiliation(s)
- Nereida Valero
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, Zulia, 4001-A, Venezuela. .,Universidad Estatal del Sur de Manabi, Jipijapa, Ecuador.
| | - Jesus Mosquera
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, Zulia, 4001-A, Venezuela
| | - Mariana Torres
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, Zulia, 4001-A, Venezuela
| | - Anyelo Duran
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, Zulia, 4001-A, Venezuela
| | - Maria Velastegui
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, Zulia, 4001-A, Venezuela
| | - Javier Reyes
- Universidad Estatal del Sur de Manabi, Jipijapa, Ecuador
| | - Miriam Fernandez
- Facultad Ciencias de la Salud, Universidad Técnica de Ambato, Ambato, Ecuador
| | - Gerardo Fernandez
- Facultad Ciencias de la Salud, Universidad Técnica de Ambato, Ambato, Ecuador
| | - Teresa Veliz
- Universidad Estatal del Sur de Manabi, Jipijapa, Ecuador
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23
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Xue T, Li J, Liu C. A radical form of nitric oxide inhibits porcine circovirus type 2 replication in vitro. BMC Vet Res 2019; 15:47. [PMID: 30709350 PMCID: PMC6359798 DOI: 10.1186/s12917-019-1796-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 01/24/2019] [Indexed: 11/29/2022] Open
Abstract
Background Porcine circovirus type 2 (PCV2) is the causal agent of postweaning multisystemic wasting syndrome (PMWS), causing large economical losses of the global swine industry. Nitric oxide (NO), as an important signaling molecule, has antiviral activity on some viruses. To date, there is little information on the role of NO during PCV2 infection. Results We used indirect fluorescence assay (IFA), TCID50, real-time RT-qPCR and western blot assay to reveal the role of NO in restricting PCV2 replication. PCV2 replication was inhibited by a form of NO, NO•, whereas PCV2 was not susceptible to another form of NO, NO+. Conclusion Our findings indicate that the form of NO• has a potential role in the fight against PCV2 infection.
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Affiliation(s)
- Tao Xue
- School of Pharmacy, Linyi University, Linyi, 276000, China
| | - Jizong Li
- School of Pharmacy, Linyi University, Linyi, 276000, China.,Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences,Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing, 210014, China
| | - Chuanmin Liu
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences,Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing, 210014, China.
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24
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Rocha RF, Del Sarto JL, Marques RE, Costa VV, Teixeira MM. Host target-based approaches against arboviral diseases. Biol Chem 2018; 399:203-217. [PMID: 29145171 DOI: 10.1515/hsz-2017-0236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 10/16/2017] [Indexed: 12/20/2022]
Abstract
In the 20th century, socioeconomic and environmental changes facilitated the reintroduction of mosquitoes in developing cities, resulting in the reinsertion of mosquito-borne viral diseases and the dispersal of their causative agents on a worldwide scale. Recurrent outbreaks of arboviral diseases are being reported, even in regions without a previous history of arboviral disease transmission. Of note, arboviral infections represented approximately 30% of all emerging vector-borne diseases in the last decade. Therapeutic strategies against infectious viral diseases include the use of different classes of molecules that act directly on the pathogen and/or act by optimizing the host immune response. Drugs targeting the virus usually provide amelioration of symptoms by suppressing and controlling the infection. However, it is limited by the short-window of effectiveness, ineffectiveness against latent viruses, development of drug-resistant mutants and toxic side effects. Disease may also be a consequence of an excessive, uncontrolled or misplaced inflammatory response, treatments that interfere in host immune response are interesting options and can be used isolated or in combination with virus-targeted therapies. The use of host-targeted therapies requires specific knowledge regarding host immune patterns that may trigger dengue virus (DENV), chikungunya virus (CHIKV) or Zika virus (ZIKV) disease.
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Affiliation(s)
- Rebeca Froes Rocha
- Departament of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil.,Research Center for Drug Development, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Juliana Lemos Del Sarto
- Departament of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil.,Research Center for Drug Development, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Rafael Elias Marques
- Centro Nacional de Pesquisa em energia e materiais - CNPEM, Brazilian Biosciences National Laboratory, LNBio, Campinas 13083-970, São Paulo, Brazil
| | - Vivian Vasconcelos Costa
- Research Center for Drug Development, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil.,Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Mauro Martins Teixeira
- Departament of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil.,Research Center for Drug Development, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
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25
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Marques RE, Besnard AG, Maillet I, Fagundes CT, Souza DG, Ryffel B, Teixeira MM, Liew FY, Guabiraba R. Interleukin-33 contributes to disease severity in Dengue virus infection in mice. Immunology 2018; 155:477-490. [PMID: 30098206 DOI: 10.1111/imm.12988] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/20/2018] [Accepted: 08/03/2018] [Indexed: 02/06/2023] Open
Abstract
The excessive inflammation often present in patients with severe dengue infection is considered both a hallmark of disease and a target for potential treatments. Interleukin-33 (IL-33) is a pleiotropic cytokine with pro-inflammatory effects whose role in dengue has not been fully elucidated. We demonstrate that IL-33 plays a disease-exacerbating role during experimental dengue infection in immunocompetent mice. Mice infected with dengue virus serotype 2 (DENV2) produced high levels of IL-33. DENV2-infected mice treated with recombinant IL-33 developed markedly more severe disease compared with untreated mice as assessed by mortality, granulocytosis, liver damage and pro-inflammatory cytokine production. Conversely, ST2-/- mice (deficient in IL-33 receptor) infected with DENV2 developed significantly less severe disease compared with wild-type mice. Furthermore, the increased disease severity and the accompanying pathology induced by IL-33 during dengue infection were reversed by the simultaneous treatment with a CXCR2 receptor antagonist (DF2156A). Together, these results indicate that IL-33 plays a disease-exacerbating role in experimental dengue infection, probably driven by CXCR2-expressing cells, leading to elevated pro-inflammatory response-mediated pathology. Our results also indicate that IL-33 is a potential therapeutic target for dengue infection.
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Affiliation(s)
- Rafael E Marques
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Centre for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil
| | | | - Isabelle Maillet
- CNRS, UMR7355, Immunologie et Neurogénétique Expérimentales et Moléculaires, Université d'Orléans, Orléans, France
| | - Caio T Fagundes
- Departamento de Microbiologia do Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Danielle G Souza
- Departamento de Microbiologia do Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Bernhard Ryffel
- CNRS, UMR7355, Immunologie et Neurogénétique Expérimentales et Moléculaires, Université d'Orléans, Orléans, France
| | - Mauro M Teixeira
- Departamento de Bioquímica e Imunologia do Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Foo Y Liew
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK.,School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
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26
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The Temporal Role of Cytokines in Flavivirus Protection and Pathogenesis. CURRENT CLINICAL MICROBIOLOGY REPORTS 2018. [DOI: 10.1007/s40588-018-0106-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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27
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Paquin-Proulx D, Avelino-Silva VI, Santos BAN, Silveira Barsotti N, Siroma F, Fernandes Ramos J, Coracini Tonacio A, Song A, Maestri A, Barros Cerqueira N, Felix AC, Levi JE, Greenspun BC, de Mulder Rougvie M, Rosenberg MG, Nixon DF, Kallas EG. MAIT cells are activated in acute Dengue virus infection and after in vitro Zika virus infection. PLoS Negl Trop Dis 2018; 12:e0006154. [PMID: 29357366 PMCID: PMC5794195 DOI: 10.1371/journal.pntd.0006154] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 02/01/2018] [Accepted: 12/05/2017] [Indexed: 12/22/2022] Open
Abstract
Dengue virus (DENV) and Zika virus (ZIKV) are members of the Flaviviridae and are predominantly transmitted via mosquito bites. Both viruses are responsible for a growing number of infections in tropical and subtropical regions. DENV infection can cause lethargy with severe morbidity and dengue shock syndrome leading to death in some cases. ZIKV is now linked with Guillain-Barré syndrome and fetal malformations including microcephaly and developmental disorders (congenital Zika syndrome). The protective and pathogenic roles played by the immune response in these infections is unknown. Mucosal-associated invariant T (MAIT) cells are a population of innate T cells with potent anti-bacterial activity. MAIT cells have also been postulated to play a role in the immune response to viral infections. In this study, we evaluated MAIT cell frequency, phenotype, and function in samples from subjects with acute and convalescent DENV infection. We found that in acute DENV infection, MAIT cells had elevated co-expression of the activation markers CD38 and HLA-DR and had a poor IFNγ response following bacterial stimulation. Furthermore, we found that MAIT cells can produce IFNγ in response to in vitro infection with ZIKV. This MAIT cell response was independent of MR1, but dependent on IL-12 and IL-18. Our results suggest that MAIT cells may play an important role in the immune response to Flavivirus infections.
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Affiliation(s)
- Dominic Paquin-Proulx
- Department of Microbiology, Immunology & Tropical Medicine, The George Washington University, Washington, DC, United States of America
- * E-mail:
| | - Vivian I. Avelino-Silva
- School of Medicine, University of São Paulo, São Paulo, Brazil
- Hospital Sírio Libanés, São Paulo, Brazil
| | | | | | | | - Jessica Fernandes Ramos
- School of Medicine, University of São Paulo, São Paulo, Brazil
- Hospital Sírio Libanés, São Paulo, Brazil
| | - Adriana Coracini Tonacio
- School of Medicine, University of São Paulo, São Paulo, Brazil
- Hospital Sírio Libanés, São Paulo, Brazil
| | - Alice Song
- School of Medicine, University of São Paulo, São Paulo, Brazil
- Hospital Sírio Libanés, São Paulo, Brazil
| | - Alvino Maestri
- School of Medicine, University of São Paulo, São Paulo, Brazil
| | | | - Alvina Clara Felix
- Departamento de Molestias Infecciosas e Parasitarias-(LIM-52), Instituto de Medicina Tropical de São Paulo e Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - José Eduardo Levi
- Departamento de Molestias Infecciosas e Parasitarias-(LIM-52), Instituto de Medicina Tropical de São Paulo e Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Benjamin C. Greenspun
- Department of Microbiology, Immunology & Tropical Medicine, The George Washington University, Washington, DC, United States of America
| | - Miguel de Mulder Rougvie
- Department of Microbiology, Immunology & Tropical Medicine, The George Washington University, Washington, DC, United States of America
| | - Michael G. Rosenberg
- Pediatric Infectious Diseases Department, Jacobi Medical Center, Bronx, NY, United States of America
| | - Douglas F. Nixon
- Department of Microbiology, Immunology & Tropical Medicine, The George Washington University, Washington, DC, United States of America
| | - Esper G. Kallas
- School of Medicine, University of São Paulo, São Paulo, Brazil
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28
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Dengue Virus-Infected Dendritic Cells, but Not Monocytes, Activate Natural Killer Cells through a Contact-Dependent Mechanism Involving Adhesion Molecules. mBio 2017; 8:mBio.00741-17. [PMID: 28765218 PMCID: PMC5539423 DOI: 10.1128/mbio.00741-17] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Natural killer (NK) cells play a protective role against dengue virus (DENV) infection, but the cellular and molecular mechanisms are not fully understood. Using an optimized humanized mouse model, we show that human NK cells, through the secretion of gamma interferon (IFN-γ), are critical in the early defense against DENV infection. Depletion of NK cells or neutralization of IFN-γ leads to increased viremia and more severe thrombocytopenia and liver damage in humanized mice. In vitro studies using autologous human NK cells show that DENV-infected monocyte-derived dendritic cells (MDDCs), but not monocytes, activate NK cells in a contact-dependent manner, resulting in upregulation of CD69 and CD25 and secretion of IFN-γ. Blocking adhesion molecules (LFA-1, DNAM-1, CD2, and 2β4) on NK cells abolishes NK cell activation, IFN-γ secretion, and the control of DENV replication. NK cells activated by infected MDDCs also inhibit DENV infection in monocytes. These findings show the essential role of human NK cells in protection against acute DENV infection in vivo, identify adhesion molecules and dendritic cells required for NK cell activation, and delineate the sequence of events for NK cell activation and protection against DENV infection. Dengue is a mosquito-transmitted viral disease with a range of symptoms, from mild fever to life-threatening dengue hemorrhagic fever. The diverse disease manifestation is thought to result from a complex interplay between viral and host factors. Using mice engrafted with a human immune system, we show that human NK cells inhibit virus infection through secretion of the cytokine gamma interferon and reduce disease pathogenesis, including depletion of platelets and liver damage. During a natural infection, DENV initially infects dendritic cells in the skin. We find that NK cells interact with infected dendritic cells through physical contact mediated by adhesion molecules and become activated before they can control virus infection. These results show a critical role of human NK cells in controlling DENV infection in vivo and reveal the sequence of molecular and cellular events that activate NK cells to control dengue virus infection.
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29
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Hall A, Troupin A, Londono-Renteria B, Colpitts TM. Garlic Organosulfur Compounds Reduce Inflammation and Oxidative Stress during Dengue Virus Infection. Viruses 2017. [PMID: 28644404 PMCID: PMC5537651 DOI: 10.3390/v9070159] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Dengue virus (DENV) is a mosquito-borne flavivirus that causes significant global human disease and mortality. One approach to develop treatments for DENV infection and the prevention of severe disease is through investigation of natural medicines. Inflammation plays both beneficial and harmful roles during DENV infection. Studies have proposed that the oxidative stress response may be one mechanism responsible for triggering inflammation during DENV infection. Thus, blocking the oxidative stress response could reduce inflammation and the development of severe disease. Garlic has been shown to both reduce inflammation and affect the oxidative stress response. Here, we show that the garlic active compounds diallyl disulfide (DADS), diallyl sulfide (DAS) and alliin reduced inflammation during DENV infection and show that this reduction is due to the effects on the oxidative stress response. These results suggest that garlic could be used as an alternative treatment for DENV infection and for the prevention of severe disease development.
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Affiliation(s)
- Alex Hall
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209, USA.
| | - Andrea Troupin
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209, USA.
| | - Berlin Londono-Renteria
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209, USA
| | - Tonya M Colpitts
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209, USA.
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30
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Malavige GN, Ogg GS. Pathogenesis of vascular leak in dengue virus infection. Immunology 2017; 151:261-269. [PMID: 28437586 DOI: 10.1111/imm.12748] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 03/26/2017] [Accepted: 04/17/2017] [Indexed: 12/31/2022] Open
Abstract
Endothelial dysfunction leading to vascular leak is the hallmark of severe dengue. Vascular leak typically becomes clinically evident 3-6 days after the onset of illness, which is known as the critical phase. This critical phase follows the period of peak viraemia, and lasts for 24-48 hr and usually shows rapid and complete reversal, suggesting that it is likely to occur as a result of inflammatory mediators, rather than infection of the endothelium. Cytokines such as tumour necrosis factor-α, which are known to be elevated in the critical phase of dengue, are likely to be contributing factors. Dengue NS1, a soluble viral protein, has also been shown to disrupt the endothelial glycocalyx and thus contribute to vascular leak, although there appears to be a discordance between the timing of NS1 antigenaemia and occurrence of vascular leak. In addition, many inflammatory lipid mediators are elevated in acute dengue viral infection such as platelet activating factor (PAF) and leukotrienes. Furthermore, many other inflammatory mediators such as vascular endothelial growth factor and angiopoietin-2 have been shown to be elevated in patients with dengue haemorrhagic fever, exerting their action in part by inducing the activity of phospholipases, which have diverse inflammatory effects including generation of PAF. Platelets have also been shown to significantly contribute to endothelial dysfunction by production of interleukin-1β through activation of the NLRP3 inflammasome and also by inducing production of inflammatory cytokines by monocytes. Drugs that block down-stream immunological mediator pathways such as PAF may also be beneficial in the treatment of severe disease.
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Affiliation(s)
- Gathsaurie Neelika Malavige
- Centre for Dengue Research, University of Sri Jayewardenepura, Nugegoda, Sri Lanka.,MRC Human Immunology Unit, Radcliffe Department of Medicine, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Graham S Ogg
- MRC Human Immunology Unit, Radcliffe Department of Medicine, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
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31
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N-Methyl-d-Aspartate (NMDA) Receptor Blockade Prevents Neuronal Death Induced by Zika Virus Infection. mBio 2017; 8:mBio.00350-17. [PMID: 28442607 PMCID: PMC5405231 DOI: 10.1128/mbio.00350-17] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Zika virus (ZIKV) infection is a global health emergency that causes significant neurodegeneration. Neurodegenerative processes may be exacerbated by N-methyl-d-aspartate receptor (NMDAR)-dependent neuronal excitoxicity. Here, we have exploited the hypothesis that ZIKV-induced neurodegeneration can be rescued by blocking NMDA overstimulation with memantine. Our results show that ZIKV actively replicates in primary neurons and that virus replication is directly associated with massive neuronal cell death. Interestingly, treatment with memantine or other NMDAR blockers, including dizocilpine (MK-801), agmatine sulfate, or ifenprodil, prevents neuronal death without interfering with the ability of ZIKV to replicate in these cells. Moreover, in vivo experiments demonstrate that therapeutic memantine treatment prevents the increase of intraocular pressure (IOP) induced by infection and massively reduces neurodegeneration and microgliosis in the brain of infected mice. Our results indicate that the blockade of NMDARs by memantine provides potent neuroprotective effects against ZIKV-induced neuronal damage, suggesting it could be a viable treatment for patients at risk for ZIKV infection-induced neurodegeneration. Zika virus (ZIKV) infection is a global health emergency associated with serious neurological complications, including microcephaly and Guillain-Barré syndrome. Infection of experimental animals with ZIKV causes significant neuronal damage and microgliosis. Treatment with drugs that block NMDARs prevented neuronal damage both in vitro and in vivo. These results suggest that overactivation of NMDARs contributes significantly to the neuronal damage induced by ZIKV infection, and this is amenable to inhibition by drug treatment.
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32
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Marques RE, Del Sarto JL, Rocha RPF, Gomes GF, Cramer A, Rachid MA, Souza DG, Nogueira ML, Teixeira MM. Development of a model of Saint Louis encephalitis infection and disease in mice. J Neuroinflammation 2017; 14:61. [PMID: 28330482 PMCID: PMC5361699 DOI: 10.1186/s12974-017-0837-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 03/09/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Flaviviruses are a genre of closely related viral pathogens which emerged in the last decades in Brazil and in the world. Saint (St.) Louis encephalitis virus (SLEV) is a neglected flavivirus that can cause a severe neurological disease that may lead to death or sequelae. St. Louis encephalitis pathogenesis is poorly understood, which hinders the development of specific treatment or vaccine. METHODS To address this problem, we developed a model of SLEV infection in mice to study mechanisms involved in the pathogenesis of severe disease. The model consists in the intracranial inoculation of the SLEV strain BeH 355964, a strain isolated from a symptomatic human patient in Brazil, in adult immunocompetent mice. RESULTS Inoculated mice presented SLEV replication in the brain, accompanied by tissue damage, disease signs, and mortality approximately 7 days post infection. Infection was characterized by the production of proinflammatory cytokines and interferons and by leukocyte recruitment to the brain, composed mainly by neutrophils and lymphocytes. In vitro experiments indicated that SLEV is able to replicate in both neurons and glia and caused neuronal death and cytokine production, respectively. CONCLUSIONS Altogether, intracranial SLEV infection leads to meningoencephalitis in mice, recapitulating several aspects of St. Louis encephalitis in humans. Our study indicates that the central nervous system (CNS) inflammation is a major component of SLEV-induced disease. This model may be useful to identify mechanisms of disease pathogenesis or resistance to SLEV infection.
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Affiliation(s)
- Rafael Elias Marques
- Immunopharmacology, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. .,Present address: Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, São Paulo, Brazil.
| | - Juliana L Del Sarto
- Immunopharmacology, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Rebeca P F Rocha
- Immunopharmacology, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Giovanni F Gomes
- Laboratório de Investigação em Neurodegeneração e Infecção, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Allysson Cramer
- Laboratório de Imunorregulação de Doenças Infecciosas, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Milene A Rachid
- Laboratório de Apoptose, Departamento de Patologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Danielle G Souza
- Laboratório de Interação Microrganismo-Hospedeiro, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Maurício L Nogueira
- Laboratório de Pesquisas em Virologia, Departamento de Doenças dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil
| | - Mauro M Teixeira
- Immunopharmacology, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Liu C, Wen L, Xiao Q, He K. Nitric oxide-generating compound GSNO suppresses porcine circovirus type 2 infection in vitro and in vivo. BMC Vet Res 2017; 13:59. [PMID: 28222773 PMCID: PMC5320642 DOI: 10.1186/s12917-017-0976-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 02/15/2017] [Indexed: 01/25/2023] Open
Abstract
Background Nitric oxide (NO), an important signaling molecule with biological functions, has antimicrobial activity against a variety of pathogens including viruses. To our knowledge, little information is available about the regulatory effect of NO on porcine circovirus type 2 (PCV2) infection. This study was conducted to investigate the antiviral activity of NO generated from S-nitrosoglutathione (GSNO), during PCV2 infection of PK-15 cells and BALB/c mice. Results GSNO released considerable NO in the culture medium of PK-15 cells, and NO was scavenged by its scavenger hemoglobin (Hb) in a dose-dependent manner. NO strongly inhibited PCV2 replication in PK-15 cells, and the antiviral effect was reversed by Hb. An in vivo assay indicated that GSNO treatment reduced the progression of PCV2 infection in mice, evident as reductions in the percentages of PCV2-positive sera and tissue samples and in the viral DNA copies in serum samples. GSNO also improved the growth performance and immune organs (spleens and thymuses) of the PCV2-infected mice to some degree. Conclusions Our data demonstrate that the NO-generating compound GSNO suppresses PCV2 infection in PK-15 cells and BALB/c mice, indicating that NO and its donor, GSNO, have potential value as antiviral drugs against PCV2 infection.
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Affiliation(s)
- Chuanmin Liu
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China.,Key laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China.,National Center for Engineering Research of Veterinary Bio-products, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 12 Wen-Hui East Road, Hanjiang District, Yangzhou, 225009, China
| | - Libin Wen
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China.,Key laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China.,National Center for Engineering Research of Veterinary Bio-products, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 12 Wen-Hui East Road, Hanjiang District, Yangzhou, 225009, China
| | - Qi Xiao
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China.,Key laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China.,National Center for Engineering Research of Veterinary Bio-products, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 12 Wen-Hui East Road, Hanjiang District, Yangzhou, 225009, China
| | - Kongwang He
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China. .,Key laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China. .,National Center for Engineering Research of Veterinary Bio-products, 50 Zhong-ling Street, Xuanwu District, Nanjing, 210014, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 12 Wen-Hui East Road, Hanjiang District, Yangzhou, 225009, China.
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High Triglycerides Are Associated with Low Thrombocyte Counts and High VEGF in Nephropathia Epidemica. J Immunol Res 2016; 2016:8528270. [PMID: 28053993 PMCID: PMC5178363 DOI: 10.1155/2016/8528270] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 10/24/2016] [Indexed: 01/05/2023] Open
Abstract
Nephropathia epidemica (NE) is a mild form of hemorrhagic fever with renal syndrome. Several reports have demonstrated a severe alteration in lipoprotein metabolism. However, little is known about changes in circulating lipids in NE. The objectives of this study were to evaluate changes in serum total cholesterol, high density cholesterol (HDCL), and triglycerides. In addition to evaluation of serum cytokine activation associations, changes in lipid profile and cytokine activation were determined for gender, thrombocyte counts, and VEGF. Elevated levels of triglycerides and decreased HDCL were observed in NE, while total cholesterol did not differ from controls. High triglycerides were associated with both the lowest thrombocyte counts and high serum VEGF, as well as a high severity score. Additionally, there were higher levels of triglycerides in male than female NE patients. Low triglycerides were associated with upregulation of IFN-γ and IL-12, suggesting activation of Th1 helper cells. Furthermore, levels of IFN-γ and IL-12 were increased in patients with lower severity scores, suggesting that a Th1 type immune response is playing protective role in NE. These combined data advance the understanding of NE pathogenesis and indicate a role for high triglycerides in disease severity.
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Troupin A, Shirley D, Londono-Renteria B, Watson AM, McHale C, Hall A, Hartstone-Rose A, Klimstra WB, Gomez G, Colpitts TM. A Role for Human Skin Mast Cells in Dengue Virus Infection and Systemic Spread. THE JOURNAL OF IMMUNOLOGY 2016; 197:4382-4391. [PMID: 27799312 DOI: 10.4049/jimmunol.1600846] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 10/04/2016] [Indexed: 12/20/2022]
Abstract
Dengue virus (DENV) is a mosquito-borne flavivirus that causes serious global human disease and mortality. Skin immune cells are an important component of initial DENV infection and systemic spread. Here, we show that mast cells are a target of DENV in human skin and that DENV infection of skin mast cells induces degranulation and alters cytokine and growth factor expression profiles. Importantly, to our knowledge, we also demonstrate for the first time that DENV localizes within secretory granules in infected skin mast cells. In addition, DENV within extracellular granules was infectious in vitro and in vivo, trafficking through lymph to draining lymph nodes in mice. We demonstrate an important role for human skin mast cells in DENV infection and identify a novel mechanism for systemic spread of DENV infection from the initial peripheral mosquito injection site.
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Affiliation(s)
- Andrea Troupin
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209
| | - Devon Shirley
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209
| | - Berlin Londono-Renteria
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209
| | - Alan M Watson
- Department of Microbiology and Molecular Genetics, Center for Vaccine Research, University of Pittsburgh, Pittsburgh, PA 15260; and
| | - Cody McHale
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209
| | - Alex Hall
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209
| | - Adam Hartstone-Rose
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, SC 29209
| | - William B Klimstra
- Department of Microbiology and Molecular Genetics, Center for Vaccine Research, University of Pittsburgh, Pittsburgh, PA 15260; and
| | - Gregorio Gomez
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209
| | - Tonya M Colpitts
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209;
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Duran A, Valero N, Mosquera J, Delgado L, Alvarez-Mon M, Torres M. Role of the myeloid differentiation primary response (MYD88) and TIR-domain-containing adapter-inducing interferon-β (TRIF) pathways in dengue. Life Sci 2016; 162:33-40. [PMID: 27575706 DOI: 10.1016/j.lfs.2016.08.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 08/16/2016] [Accepted: 08/25/2016] [Indexed: 12/29/2022]
Abstract
AIMS Dengue disease courses with high viremia titers and high cytokine production suggesting viral replication and active immune response that could be related to viral evasion. One of the main targets of dengue virus (DENV) is monocyte/macrophage cells; however, little information regarding viral evasive mechanisms and pathway activation in monocytes infected by DENV is available. The aim of this study was to determine the role of myeloid differentiation primary response (MyD88), TIR-domain-containing adapter- inducing interferon-β (TRIF) and NF-kB pathways in viral replication and cytokine production in human monocyte cultures infected by DENV2. MAIN METHODS In this regard Pepinh- TRIF, Pepinh- MYD and pyrrolidine dithiocarbamate (PDTC) were used to inhibit TRIF, MYD88 and NF-kB pathways. Cytokine production was measured by ELISA. KEY FINDINGS Increased DENV replication and IFNα/β, TNF-α, IL-12 and IL-18 in infected cultures at 24h were found. All of these parameters were significantly decreased after TRIF, MYD88 or NF-kB inhibition. Association analysis between viral replication and cytokine production showed high significant positive correlation in TRIF and MYD88 treated cultures. SIGNIFICANCE This study shows that DENV2 induces activation of innate-immune response and transcription factors to drive viral expression and replication in the face of pro-inflammatory antiviral responses in vitro.
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Affiliation(s)
- Anyelo Duran
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela; Cátedra de Bioquímica General, Escuela de Bioanálisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela; Sociedad Venezolana de Microbiología
| | - Nereida Valero
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela; Sociedad Venezolana de Microbiología.
| | - Jesus Mosquera
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Lineth Delgado
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Melchor Alvarez-Mon
- Servicio de Enfermedades del Sistema Inmune y Oncología, Hospital Universitario "Príncipe de Asturias", Universidad de Alcalá, Madrid, Spain
| | - Mariana Torres
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
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Hu Y, Hu Y, Sun L, Wong J, Wang M. Antiviral effects of liposome-encapsulated PolyICLC against Dengue virus in a mouse model. Biochem Biophys Res Commun 2016; 478:913-8. [PMID: 27524246 DOI: 10.1016/j.bbrc.2016.08.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/29/2016] [Accepted: 08/08/2016] [Indexed: 11/29/2022]
Abstract
This study presents the first investigation of the antiviral effects of the liposome-encapsulated PolyICLC (LE-PolyICLC) on Dengue virus (DENV) in a mouse model. In vivo efficacy studies showed that LE-PolyICLC acted to increase antiviral mechanisms mainly through promoting cytokine expression associated with innate immunity, such as IFN-γ. In addition, the pro-inflammatory cytokine TNF-α was also increased, while IL-6 level was decreased in serum. The titers of total antibodies against DENV2 in mice were also elevated. Administration of LE-PolyICLC not only alleviated the loss of body weight, degree of morbidity, and pathological damage in brains, but also reduced the viral titers and expression of viral E protein in the brain. Notably, the effectiveness of LE-PolyICLC was better than PolyICLC on the basis of the data presented in this study. These results, therefore, set a foundation for further development of LE-PolyICLC as an attractive candidate of antiviral agents to be used in both prophylactic and therapeutic settings in DENV diseases.
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Affiliation(s)
- Yongxin Hu
- Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yanxin Hu
- Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Lunquan Sun
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha 410078, China.
| | - Jonathan Wong
- Biotechnology, DRDC, Box 4000, Station Main, Medicine Hat, Alta T1A 8K6, Canada.
| | - Ming Wang
- Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Minstry of Agriculture, Zhongmu Institutes of China Animal Husbandry Industry Co., Ltd, No. 156 Beiqing Road, Haidian District, Beijing 100095, China.
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Kuczera D, Bavia L, Mosimann ALP, Koishi AC, Mazzarotto GACA, Aoki MN, Mansano AMF, Tomeleri EI, Costa Junior WL, Miranda MM, Lo Sarzi M, Pavanelli WR, Conchon-Costa I, Duarte Dos Santos CN, Bordignon J. Isolation of dengue virus serotype 4 genotype II from a patient with high viral load and a mixed Th1/Th17 inflammatory cytokine profile in South Brazil. Virol J 2016; 13:93. [PMID: 27267473 PMCID: PMC4895951 DOI: 10.1186/s12985-016-0548-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 05/24/2016] [Indexed: 11/29/2022] Open
Abstract
Background We report the isolation and characterization of dengue virus (DENV) serotype 4 from a resident of Santa Fé, state of Paraná, South Brazil, in March 2013. This patient presented with hemorrhagic manifestations, high viral load and, interestingly, a mixed Th1/Th17 cytokine profile. Case presentation The patient presented with classical dengue symptoms, such as fever, rash, myalgia, arthralgia, and hemorrhagic manifestations including petechiae, gum bleeding and a positive tourniquet test result. A serum sample obtained 1 day after the initial appearance of clinical symptoms was positive for NS1 viral antigen, but this sample was negative for both IgM and IgG against DENV. Dengue virus infection was confirmed by isolation of the virus from C6/36 cells, and dengue virus serotyping was performed via one-step RT-PCR. The infection was confirmed to be caused by a serotype 4 dengue virus. Additionally, based on multiple alignment and phylogeny analyses of its complete genome sequence, the viral strain was classified as genotype II (termed LRV13/422). Moreover, a mixed Th1/Th17 cytokine profile was detected in the patient’s serum, and this result demonstrated significant inflammation. Biological characterization of the virus via in vitro assays comparing LRV13/422 with a laboratory-adapted reference strain of dengue virus serotype 4 (TVP/360) showed that LRV13/422 infects both vertebrate and invertebrate cell lines more efficiently than TVP/360. However, LRV13/422 was unable to inhibit type I interferon responses, as suggested by the results obtained for other dengue virus strains. Furthermore, LRV13/422 is the first completely sequenced serotype 4 dengue virus isolated in South Brazil. Conclusion The high viral load and mixed Th1/Th17 cytokine profile observed in the patient’s serum could have implications for the development of the hemorrhagic signs observed, and these potential relationships can now be further studied using suitable animal models and/or in vitro systems. Electronic supplementary material The online version of this article (doi:10.1186/s12985-016-0548-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Diogo Kuczera
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil
| | - Lorena Bavia
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil
| | | | - Andrea Cristine Koishi
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil
| | | | - Mateus Nóbrega Aoki
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil
| | | | | | | | - Milena Menegazzo Miranda
- Laboratório de Imunoparasitologia Experimental, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Maria Lo Sarzi
- Secretaria Municipal de Saúde de Cambé, Cambé, PR, Brazil
| | - Wander Rogério Pavanelli
- Laboratório de Imunoparasitologia Experimental, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Ivete Conchon-Costa
- Laboratório de Imunoparasitologia Experimental, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | | | - Juliano Bordignon
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Fiocruz, Curitiba, PR, Brazil.
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Abdul-Cader MS, Amarasinghe A, Abdul-Careem MF. Activation of toll-like receptor signaling pathways leading to nitric oxide-mediated antiviral responses. Arch Virol 2016; 161:2075-86. [PMID: 27233799 PMCID: PMC7087267 DOI: 10.1007/s00705-016-2904-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 05/17/2016] [Indexed: 02/07/2023]
Abstract
Toll-like receptors (TLRs), well-characterized pattern-recognizing receptors of the innate arm of the immune system, are vital in detecting pathogen-associated molecular patterns (PAMPs). The TLR-PAMP interaction initiates an intracellular signaling cascade, predominantly culminating in upregulation of antiviral components, including inducible nitric oxide synthase (iNOS). After activation, various TLR pathways can promote iNOS production via the myeloid differentiation primary response-88 (MyD-88) adapter protein. Subsequently, iNOS facilitates production of nitric oxide (NO), a highly reactive and potent antiviral molecule that can inhibit replication of RNA and DNA viruses. Furthermore, NO can diffuse freely across cell membranes and elicit antiviral mechanisms in various ways, including direct and indirect damage to viral genomes. This review emphasizes current knowledge of NO-mediated antiviral responses elicited after activation of TLR signaling pathways.
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Affiliation(s)
- Mohamed Sarjoon Abdul-Cader
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C58, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada
| | - Aruna Amarasinghe
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C58, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada
| | - Mohamed Faizal Abdul-Careem
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C58, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada.
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Opportunities for the development of novel therapies based on host-microbial interactions. Pharmacol Res 2016; 112:68-83. [PMID: 27107789 DOI: 10.1016/j.phrs.2016.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/07/2016] [Accepted: 04/08/2016] [Indexed: 12/21/2022]
Abstract
Immune responses are fundamental for protecting against most infectious agents. However, there is now much evidence to suggest that the pathogenesis and tissue damage after infection are not usually related to the direct action of the replication of microorganisms, but instead to altered immune responses triggered after the contact with the pathogen. This review article discusses several mechanisms necessary for the host to protect against microbial infection and focuses in aspects that cause altered inflammation and drive immunopathology. These basic findings can ultimately reveal pathways amenable to host-directed therapy in adjunct to antimicrobial therapy for future improved control measures for many infectious diseases. Therefore, modulating the effects of inflammatory pathways may represent a new therapy during infection outcome and disease.
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Kim SB, Choi JY, Uyangaa E, Patil AM, Hossain FMA, Hur J, Park SY, Lee JH, Kim K, Eo SK. Blockage of indoleamine 2,3-dioxygenase regulates Japanese encephalitis via enhancement of type I/II IFN innate and adaptive T-cell responses. J Neuroinflammation 2016; 13:79. [PMID: 27090635 PMCID: PMC4835894 DOI: 10.1186/s12974-016-0551-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 04/12/2016] [Indexed: 11/24/2022] Open
Abstract
Background Japanese encephalitis (JE), a leading cause of viral encephalitis, is characterized by extensive neuroinflammation following infection with neurotropic JE virus (JEV). Indoleamine 2,3-dioxygenase (IDO) has been identified as an enzyme associated with immunoregulatory function. Although the regulatory role of IDO in viral replication has been postulated, the in vivo role of IDO activity has not been fully addressed in neurotropic virus-caused encephalitis. Methods Mice in which IDO activity was inhibited by genetic ablation or using a specific inhibitor were examined for mortality and clinical signs after infection. Neuroinflammation was evaluated by central nervous system (CNS) infiltration of leukocytes and cytokine expression. IDO expression, viral burden, JEV-specific T-cell, and type I/II interferon (IFN-I/II) innate responses were also analyzed. Results Elevated expression of IDO activity in myeloid and neuron cells of the lymphoid and CNS tissues was closely associated with clinical signs of JE. Furthermore, inhibition of IDO activity enhanced resistance to JE, reduced the viral burden in lymphoid and CNS tissues, and resulted in early and increased CNS infiltration by Ly-6Chi monocytes, NK, CD4+, and CD8+ T-cells. JE amelioration in IDO-ablated mice was also associated with enhanced NK and JEV-specific T-cell responses. More interestingly, IDO ablation induced rapid enhancement of type I IFN (IFN-I) innate responses in CD11c+ dendritic cells (DCs), including conventional and plasmacytoid DCs, following JEV infection. This enhanced IFN-I innate response in IDO-ablated CD11c+ DCs was coupled with strong induction of PRRs (RIG-I, MDA5), transcription factors (IRF7, STAT1), and antiviral ISG genes (Mx1, Mx2, ISG49, ISG54, ISG56). IDO ablation also enhanced the IFN-I innate response in neuron cells, which may delay the spread of virus in the CNS. Finally, we identified that IDO ablation in myeloid cells derived from hematopoietic stem cells (HSCs) dominantly contributed to JE amelioration and that HSC-derived leukocytes played a key role in the enhanced IFN-I innate responses in the IDO-ablated environment. Conclusions Inhibition of IDO activity ameliorated JE via enhancement of antiviral IFN-I/II innate and adaptive T-cell responses and increased CNS infiltration of peripheral leukocytes. Therefore, our data provide valuable insight into the use of IDO inhibition by specific inhibitors as a promising tool for therapeutic and prophylactic strategies against viral encephalitis caused by neurotropic viruses.
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Affiliation(s)
- Seong Bum Kim
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Jin Young Choi
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Erdenebileg Uyangaa
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Ajit Mahadev Patil
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Ferdaus Mohd Altaf Hossain
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Jin Hur
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Sang-Youel Park
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea.,Department of Bioactive Material Sciences, Graduate School, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - John-Hwa Lee
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea.,Department of Bioactive Material Sciences, Graduate School, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - Koanhoi Kim
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, 50612, Republic of Korea
| | - Seong Kug Eo
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea. .,Department of Bioactive Material Sciences, Graduate School, Chonbuk National University, Jeonju, 54896, Republic of Korea.
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Sarathy VV, Milligan GN, Bourne N, Barrett ADT. Mouse models of dengue virus infection for vaccine testing. Vaccine 2015; 33:7051-60. [PMID: 26478201 PMCID: PMC5563257 DOI: 10.1016/j.vaccine.2015.09.112] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 09/10/2015] [Accepted: 09/16/2015] [Indexed: 01/09/2023]
Abstract
Dengue is a mosquito-borne disease caused by four serologically and genetically related viruses termed DENV-1 to DENV-4. With an annual global burden of approximately 390 million infections occurring in the tropics and subtropics worldwide, an effective vaccine to combat dengue is urgently needed. Historically, a major impediment to dengue research has been development of a suitable small animal infection model that mimics the features of human illness in the absence of neurologic disease that was the hallmark of earlier mouse models. Recent advances in immunocompromised murine infection models have resulted in development of lethal DENV-2, DENV-3 and DENV-4 models in AG129 mice that are deficient in both the interferon-α/β receptor (IFN-α/β R) and the interferon-γ receptor (IFN-γR). These models mimic many hallmark features of dengue disease in humans, such as viremia, thrombocytopenia, vascular leakage, and cytokine storm. Importantly AG129 mice develop lethal, acute, disseminated infection with systemic viral loads, which is characteristic of typical dengue illness. Infected AG129 mice generate an antibody response to DENV, and antibody-dependent enhancement (ADE) models have been established by both passive and maternal transfer of DENV-immune sera. Several steps have been taken to refine DENV mouse models. Viruses generated by peripheral in vivo passages incur substitutions that provide a virulent phenotype using smaller inocula. Because IFN signaling has a major role in immunity to DENV, mice that generate a cellular immune response are desired, but striking the balance between susceptibility to DENV and intact immunity is complicated. Great strides have been made using single-deficient IFN-α/βR mice for DENV-2 infection, and conditional knockdowns may offer additional approaches to provide a panoramic view that includes viral virulence and host immunity. Ultimately, the DENV AG129 mouse models result in reproducible lethality and offer multiple disease parameters to evaluate protection by candidate vaccines.
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Affiliation(s)
- Vanessa V Sarathy
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, United States; Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - Gregg N Milligan
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, United States; Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, United States; Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
| | - Nigel Bourne
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, United States; Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, United States; Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
| | - Alan D T Barrett
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, United States; Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, United States; Center for Tropical Diseases, University of Texas Medical Branch, Galveston, TX, United States; Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, TX, United States.
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Carneiro MBH, Lopes MEDM, Vaz LG, Sousa LMA, dos Santos LM, de Souza CC, Campos ACDA, Gomes DA, Gonçalves R, Tafuri WL, Vieira LQ. IFN-γ-Dependent Recruitment of CD4(+) T Cells and Macrophages Contributes to Pathogenesis During Leishmania amazonensis Infection. J Interferon Cytokine Res 2015; 35:935-47. [PMID: 26401717 PMCID: PMC4683564 DOI: 10.1089/jir.2015.0043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 06/09/2015] [Indexed: 12/21/2022] Open
Abstract
Interferon gamma (IFN-γ) is a key factor in the protection of hosts against intracellular parasites. This cytokine induces parasite killing through nitric oxide and reactive oxygen species production by phagocytes. Surprisingly, during Leishmania amazonensis infection, IFN-γ plays controversial roles. During in vitro infections, IFN-γ induces the proliferation of the amastigote forms of L. amazonensis. However, this cytokine is not essential at the beginning of an in vivo infection. It is not clear why IFN-γ does not mediate protection during the early stages of infection. Thus, the aim of our study was to investigate the role of IFN-γ during L. amazonensis infection. We infected IFN-γ(-/-) mice in the footpad and followed the development of leishmaniasis in these mice compared with that in WT mice. CD4(+) T lymphocytes and macrophages migrated earlier to the site of infection in the WT mice, and the earlier migration of these 2 cell types was associated with lesion development and parasite growth, respectively. These differences in the infiltrate populations were explained by the increased expression of chemokines in the lesions of the WT mice. Thus, we propose that IFN-γ plays a dual role during L. amazonensis infection; it is an important inducer of effector mechanisms, particularly through inducible nitric oxide synthase expression, and conversely, it is a mediator of inflammation and pathogenesis through the induction of the expression of chemokines. Our data provided evidence for a pathogenic effect of IFN-γ production during leishmaniasis that was previously unknown.
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Affiliation(s)
- Matheus Batista Heitor Carneiro
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mateus Eustáquio de Moura Lopes
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Leonardo Gomes Vaz
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Louisa Maria Andrade Sousa
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Liliane Martins dos Santos
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Carolina Carvalho de Souza
- Departamento de Patologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Carolina de Angelis Campos
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Dawidson Assis Gomes
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Gonçalves
- Departamento de Patologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Wagner Luiz Tafuri
- Departamento de Patologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Leda Quercia Vieira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Kim SB, Choi JY, Kim JH, Uyangaa E, Patil AM, Park SY, Lee JH, Kim K, Han YW, Eo SK. Amelioration of Japanese encephalitis by blockage of 4-1BB signaling is coupled to divergent enhancement of type I/II IFN responses and Ly-6C(hi) monocyte differentiation. J Neuroinflammation 2015; 12:216. [PMID: 26597582 PMCID: PMC4657197 DOI: 10.1186/s12974-015-0438-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 11/16/2015] [Indexed: 12/28/2022] Open
Abstract
Background Japanese encephalitis (JE), a neuroinflammation caused by zoonotic JE virus, is the major cause of viral encephalitis worldwide and poses an increasing threat to global health and welfare. To date, however, there has been no report describing the regulation of JE progression using immunomodulatory tools for developing therapeutic strategies. We tested whether blocking the 4-1BB signaling pathway would regulate JE progression using murine JE model. Methods Infected wild-type and 4-1BB-knockout (KO) mice were examined daily for mortality and clinical signs, and neuroinflammation in the CNS was evaluated by infiltration of inflammatory leukocytes and cytokine expression. In addition, viral burden, JEV-specific T cell, and type I/II IFN (IFN-I/II) innate responses were analyzed. Results Blocking the 4-1BB signaling pathway significantly increased resistance to JE and reduced viral burden in extraneural tissues and the CNS, rather than causing a detrimental effect. In addition, treatment with 4-1BB agonistic antibody exacerbated JE. Furthermore, JE amelioration and reduction of viral burden by blocking the 4-1BB signaling pathway were associated with an increased frequency of IFN-II-producing NK and CD4+ Th1 cells as well as increased infiltration of mature Ly-6Chi monocytes in the inflamed CNS. More interestingly, DCs and macrophages derived from 4-1BB KO mice showed potent and rapid IFN-I innate immune responses upon JEV infection, which was coupled to strong induction of PRRs (RIG-I, MDA5), transcription factors (IRF7), and antiviral ISG genes (ISG49, ISG54, ISG56). Further, the ablation of 4-1BB signaling enhanced IFN-I innate responses in neuron cells, which likely regulated viral spread in the CNS. Finally, we confirmed that blocking the 4-1BB signaling pathway in myeloid cells derived from hematopoietic stem cells (HSCs) played a dominant role in ameliorating JE. In support of this finding, HSC-derived leukocytes played a dominant role in generating the IFN-I innate responses in the host. Conclusions Blocking the 4-1BB signaling pathway ameliorates JE via divergent enhancement of IFN-II-producing NK and CD4+ Th1 cells and mature Ly-6Chi monocyte infiltration, as well as an IFN-I innate response of myeloid-derived cells. Therefore, regulation of the 4-1BB signaling pathway with antibodies or inhibitors could be a valuable therapeutic strategy for the treatment of JE.
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Affiliation(s)
- Seong Bum Kim
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Jin Young Choi
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Jin Hyoung Kim
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Erdenebelig Uyangaa
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Ajit Mahadev Patil
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Sang-Youel Park
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea.,Department of Bioactive Material Sciences, Graduate School, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - John Hwa Lee
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea.,Department of Bioactive Material Sciences, Graduate School, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - Koanhoi Kim
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, 50612, Republic of Korea
| | - Young Woo Han
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Seong Kug Eo
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea. .,Department of Bioactive Material Sciences, Graduate School, Chonbuk National University, Jeonju, 54896, Republic of Korea.
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Conroy AL, Gélvez M, Hawkes M, Rajwans N, Tran V, Liles WC, Villar-Centeno LA, Kain KC. Host biomarkers are associated with progression to dengue haemorrhagic fever: a nested case-control study. Int J Infect Dis 2015; 40:45-53. [PMID: 26255888 DOI: 10.1016/j.ijid.2015.07.027] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 07/28/2015] [Accepted: 07/30/2015] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES Dengue represents the most important arboviral infection worldwide. Onset of circulatory collapse can be unpredictable. Biomarkers that can identify individuals at risk of plasma leakage may facilitate better triage and clinical management. DESIGN Using a nested case-control design, we randomly selected subjects from a prospective cohort study of dengue in Colombia (n=1582). Using serum collected within 96 hours of fever onset, we tested 19 biomarkers by ELISA in cases (developed dengue hemorrhagic fever or dengue shock syndrome (DHF/DSS); n=46), and controls (uncomplicated dengue fever (DF); n=65) and healthy controls (HC); n=15. RESULTS Ang-1 levels were lower and angptl3, sKDR, sEng, sICAM-1, CRP, CXCL10/IP-10, IL-18 binding protein, CHI3L1, C5a and Factor D levels were increased in dengue compared to HC. sICAM-1, sEng and CXCL10/IP-10 were further elevated in subjects who subsequently developed DHF/DSS (p=0.008, p=0.028 and p=0.025, respectively). In a logistic regression model, age (odds ratio (OR) (95% CI): 0.95 (0.92-0.98), p=0.001), hyperesthesia/hyperalgesia (OR; 3.8 (1.4-10.4), p=0.008) and elevated sICAM-1 (>298ng/mL: OR; 6.3 (1.5-25.7), p=0.011) at presentation were independently associated with progression to DHF/DSS. CONCLUSIONS These results suggest that inflammation and endothelial activation are important pathways in the pathogenesis of dengue and sICAM-1 levels may identify individuals at risk of plasma leakage.
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Affiliation(s)
- Andrea L Conroy
- Sandra A. Rotman Laboratories, Sandra Rotman Centre, University Health Network-Toronto General Hospital, University of Toronto, Toronto, ON, M5G 1L7, Canada.
| | - Margarita Gélvez
- Centro de Investigaciones Epidemiológicas, Facultad de Salud, Universidad Industrial de Santander, Bucaramanga, Colombia.
| | - Michael Hawkes
- Department of Pediatrics, University of Alberta, Edmonton, AB, T6G 2E1, Canada.
| | - Nimerta Rajwans
- Sandra A. Rotman Laboratories, Sandra Rotman Centre, University Health Network-Toronto General Hospital, University of Toronto, Toronto, ON, M5G 1L7, Canada.
| | - Vanessa Tran
- Sandra A. Rotman Laboratories, Sandra Rotman Centre, University Health Network-Toronto General Hospital, University of Toronto, Toronto, ON, M5G 1L7, Canada.
| | - W Conrad Liles
- University of Washington, Department of Medicine, Seattle, WA, 98195, USA.
| | - Luis Angel Villar-Centeno
- Centro de Investigaciones Epidemiológicas, Facultad de Salud, Universidad Industrial de Santander, Bucaramanga, Colombia.
| | - Kevin C Kain
- Sandra A. Rotman Laboratories, Sandra Rotman Centre, University Health Network-Toronto General Hospital, University of Toronto, Toronto, ON, M5G 1L7, Canada; Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine, University of Toronto, Toronto, ON, M5G 2C4, Canada.
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Normal free interleukin-18 (IL-18) plasma levels in dengue virus infection and the need to measure both total IL-18 and IL-18 binding protein levels. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2015; 22:650-5. [PMID: 25878254 DOI: 10.1128/cvi.00147-15] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Accepted: 04/09/2015] [Indexed: 02/07/2023]
Abstract
Activated monocytes/macrophages and T lymphocytes that produce a cytokine storm are assumed to play a pivotal role in the pathogenesis of dengue. Interleukin-18 (IL-18) is a proinflammatory cytokine that is increased during dengue and known to induce gamma interferon (IFN-γ), which is crucial for dengue immune response. No data are available regarding the balance between IL-18 and its natural inhibitor IL-18 binding protein (IL-18BP) and how they interact within the inflammatory reaction of patients with dengue virus infections. Circulating levels of IL-18; IL-18BP; free, biologically active IL-18; the IL-18-dependent proinflammatory cytokine IFN-γ; monocyte-derived cytokines; and ferritin were assessed in adult Indonesian dengue patients (n = 95). Healthy individuals (n = 22) and leptospirosis (n = 19) and enteric fever (n = 6) patients served as controls. Total IL-18 levels were increased during dengue, leptospirosis, and enteric fever compared to healthy controls. However, due to a concurrent increase in IL-18BP levels, biologically active IL-18 levels remained similar in the different phases of dengue and in patients with leptospirosis. Biologically active IL-18 levels were also similar in patients with severe and nonsevere dengue. In conclusion, high total IL-18 and IL-18BP levels concur in dengue virus infections, leptospirosis, and enteric fever. This resulted in unchanged levels of free, biologically active IL-18 in dengue and leptospirosis, which underlines the importance of measuring both IL-18 and IL-18BP when studying the role of IL-18 in diseases.
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Time since onset of disease and individual clinical markers associate with transcriptional changes in uncomplicated dengue. PLoS Negl Trop Dis 2015; 9:e0003522. [PMID: 25768297 PMCID: PMC4358925 DOI: 10.1371/journal.pntd.0003522] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 01/05/2015] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Dengue virus (DENV) infection causes viral haemorrhagic fever that is characterized by extensive activation of the immune system. The aim of this study is to investigate the kinetics of the transcriptome signature changes during the course of disease and the association of genes in these signatures with clinical parameters. METHODOLOGY/PRINCIPLE FINDINGS Sequential whole blood samples from DENV infected patients in Jakarta were profiled using affymetrix microarrays, which were analysed using principal component analysis, limma, gene set analysis, and weighted gene co-expression network analysis. We show that time since onset of disease, but not diagnosis, has a large impact on the blood transcriptome of patients with non-severe dengue. Clinical diagnosis (according to the WHO classification) does not associate with differential gene expression. Network analysis however, indicated that the clinical markers platelet count, fibrinogen, albumin, IV fluid distributed per day and liver enzymes SGOT and SGPT strongly correlate with gene modules that are enriched for genes involved in the immune response. Overall, we see a shift in the transcriptome from immunity and inflammation to repair and recovery during the course of a DENV infection. CONCLUSIONS/SIGNIFICANCE Time since onset of disease associates with the shift in transcriptome signatures from immunity and inflammation to cell cycle and repair mechanisms in patients with non-severe dengue. The strong association of time with blood transcriptome changes hampers both the discovery as well as the potential application of biomarkers in dengue. However, we identified gene expression modules that associate with key clinical parameters of dengue that reflect the systemic activity of disease during the course of infection. The expression level of these gene modules may support earlier detection of disease progression as well as clinical management of dengue.
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Tsai CY, Liong KH, Gunalan MG, Li N, Lim DSL, Fisher DA, MacAry PA, Leo YS, Wong SC, Puan KJ, Wong SBJ. Type I IFNs and IL-18 regulate the antiviral response of primary human γδ T cells against dendritic cells infected with Dengue virus. THE JOURNAL OF IMMUNOLOGY 2015; 194:3890-900. [PMID: 25732728 DOI: 10.4049/jimmunol.1303343] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 01/30/2015] [Indexed: 01/08/2023]
Abstract
Little is known about the cellular mechanisms of innate immunity against dengue virus (DV) infection. Specifically, the γδ T cell response to DV has not been characterized in detail. In this article, we demonstrate that markers of activation, proliferation, and degranulation are upregulated on γδ T cells in PBMC isolated from individuals with acute dengue fever. Primary γδ T cells responded rapidly in vitro to autologous DV-infected dendritic cells by secreting IFN-γ and upregulating CD107a. The anti-DV IFN-γ response is regulated by type I IFN and IL-18 in a TCR-independent manner, and IFN-γ secreting γδ T cells predominantly expressed IL-18Rα. Antagonizing the ATP-dependent P2X7 receptor pathway of inflammasome activation significantly inhibited the anti-DV IFN-γ response of γδ T cells. Overnight priming with IL-18 produced effector γδ T cells with significantly increased ability to lyse autologous DV-infected dendritic cells. Monocytes were identified as accessory cells that augmented the anti-DV IFN-γ response of γδ T cells. Lack of monocytes in culture is associated with lower IL-18 levels in culture supernatant and diminished production of IFN-γ by γδ T cells, whereas addition of exogenous IL-18 restored the IFN-γ response of γδ T cells in monocyte-depleted cocultures with DV-infected DC. Our results indicate that primary γδ T cells contribute to the immune response during DV infection by providing an early source of IFN-γ, as well as by killing DV-infected cells, and suggest that monocytes participate as accessory cells that sense DV infection and amplify the cellular immune response against this virus in an IL-18-dependent manner.
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Affiliation(s)
- Chen-Yu Tsai
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Republic of Singapore
| | - Ka Hang Liong
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Republic of Singapore
| | - Matilda Gertrude Gunalan
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Republic of Singapore
| | - Na Li
- Singapore-MIT Alliance for Research and Technology, Singapore 138602, Republic of Singapore
| | - Daniel Say Liang Lim
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Republic of Singapore
| | - Dale A Fisher
- Division of Infectious Diseases, National University Hospital, Singapore 119074, Republic of Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Republic of Singapore
| | - Paul A MacAry
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Republic of Singapore; Immunology Programme, Life Science Institute, National University of Singapore, Singapore 117456, Republic of Singapore
| | - Yee Sin Leo
- Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore 308433, Republic of Singapore
| | - Siew-Cheng Wong
- Singapore Immunology Network, Agency for Science Technology and Research, Singapore 138648, Republic of Singapore; and
| | - Kia Joo Puan
- Singapore Immunology Network, Agency for Science Technology and Research, Singapore 138648, Republic of Singapore; and
| | - Soon Boon Justin Wong
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Republic of Singapore; Immunology Programme, Life Science Institute, National University of Singapore, Singapore 117456, Republic of Singapore; Department of Pathology, National University Hospital, Singapore 119074, Republic of Singapore
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A lethal murine infection model for dengue virus 3 in AG129 mice deficient in type I and II interferon receptors leads to systemic disease. J Virol 2014; 89:1254-66. [PMID: 25392217 DOI: 10.1128/jvi.01320-14] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
UNLABELLED The mosquito-borne disease dengue (DEN) is caused by four serologically and genetically related viruses, termed DENV-1 to DENV-4. Infection with one DENV usually leads to acute illness and results in lifelong homotypic immunity, but individuals remain susceptible to infection by the other three DENVs. The lack of a small-animal model that mimics systemic DEN disease without neurovirulence has been an obstacle, but DENV-2 models that resemble human disease have been recently developed in AG129 mice (deficient in interferon alpha/beta and interferon gamma receptor signaling). However, comparable DENV-1, -3, and -4 models have not been developed. We utilized a non-mouse-adapted DENV-3 Thai human isolate to develop a lethal infection model in AG129 mice. Intraperitoneal inoculation of six to eight-week-old animals with strain C0360/94 led to rapid, fatal disease. Lethal C0360/94 infection resulted in physical signs of illness, high viral loads in the spleen, liver, and large intestine, histological changes in the liver and spleen tissues, and increased serum cytokine levels. Importantly, the animals developed vascular leakage, thrombocytopenia, and leukopenia. Overall, we have developed a lethal DENV-3 murine infection model, with no evidence of neurotropic disease based on a non-mouse-adapted human isolate, which can be used to investigate DEN pathogenesis and to evaluate candidate vaccines and antivirals. This suggests that murine models utilizing non-mouse-adapted isolates can be obtained for all four DENVs. IMPORTANCE Dengue (DEN) is a mosquito-borne disease caused by four DENV serotypes (DENV-1, -2, -3, and -4) that have no treatments or vaccines. Primary infection with one DENV usually leads to acute illness followed by lifelong homotypic immunity, but susceptibility to infection by the other three DENVs remains. Therefore, a vaccine needs to protect from all four DENVs simultaneously. To date a suitable animal model to mimic systemic human illness exists only for DENV-2 in immunocompromised mice using passaged viruses; however, models are still needed for the remaining serotypes. This study describes establishment of a lethal systemic DENV-3 infection model with a human isolate in immunocompromised mice and is the first report of lethal infection by a nonadapted clinical DENV isolate without evidence of neurological disease. Our DENV-3 model provides a relevant platform to test DEN vaccines and antivirals.
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Pal T, Dutta SK, Mandal S, Saha B, Tripathi A. Differential clinical symptoms among acute phase Indian patients revealed significant association with dengue viral load and serum IFN-gamma level. J Clin Virol 2014; 61:365-70. [DOI: 10.1016/j.jcv.2014.09.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 08/12/2014] [Accepted: 09/05/2014] [Indexed: 12/01/2022]
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