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Sann S, Kleinewietfeld M, Cantaert T. Balancing functions of regulatory T cells in mosquito-borne viral infections. Emerg Microbes Infect 2024; 13:2304061. [PMID: 38192073 PMCID: PMC10812859 DOI: 10.1080/22221751.2024.2304061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/07/2024] [Indexed: 01/10/2024]
Abstract
Mosquito-borne viral infections are on the rise worldwide and can lead to severe symptoms such as haemorrhage, encephalitis, arthritis or microcephaly. A protective immune response following mosquito-borne viral infections requires the generation of a controlled and balanced immune response leading to viral clearance without immunopathology. Here, regulatory T cells play a central role in restoring immune homeostasis. In current review, we aim to provide an overview and summary of the phenotypes of FOXP3+ Tregs in various mosquito-borne arboviral disease, their association with disease severity and their functional characteristics. Furthermore, we discuss the role of cytokines and Tregs in the immunopathogenesis of mosquito-borne infections. Lastly, we discuss possible novel lines of research which could provide additional insight into the role of Tregs in mosquito-borne viral infections in order to develop novel therapeutic approaches or vaccination strategies.
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Affiliation(s)
- Sotheary Sann
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
- Department of Immunology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Markus Kleinewietfeld
- Department of Immunology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
- VIB Laboratory of Translational Immunomodulation, VIB Center for Inflammation Research (IRC), Hasselt University, Diepenbeek, Belgium
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
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2
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Rahman NAA, Fuaad AAHA, Azami NAM, Amin MCIM, Azmi F. Next-generation Dengue Vaccines: Leveraging Peptide-Based Immunogens and Advanced Nanoparticles as Delivery Platforms. J Pharm Sci 2024; 113:2044-2054. [PMID: 38761864 DOI: 10.1016/j.xphs.2024.05.010] [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: 02/28/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
Dengue, caused by the dengue virus (DENV), is a prevalent arthropod-borne disease in humans and poses a significant burden on public health. Severe cases of dengue can be life-threatening. Although a licensed dengue vaccine is available, its efficacy varies across different virus serotypes and may exacerbate the disease in some seronegative recipients. Developing a safe and effective vaccine against all DENV serotypes remains challenging and requires continued research. Conventional approaches in dengue vaccine development, using live or attenuated microorganisms or parts of them often contain unnecessary epitopes, risking allergenic or autoimmune reactions. To address these challenges, innovative strategies such as peptide vaccines have been explored. Peptide vaccines offer a safer alternative by inducing specific immune responses with minimal immunogenic fragments. Chemical modification strategies of peptides have revolutionized their design, allowing for the incorporation of multi-epitope presentation, self-adjuvanting features, and self-assembling properties. These modifications enhance the antigenicity of the peptides, leading to improved vaccine efficacy. This review outlines advancements in peptide-based dengue vaccine development, leveraging nanoparticles as antigen-displaying platforms. Additionally, key immunological considerations for enhancing efficacy and safety against DENV infection have been addressed, providing insight into the next-generation of dengue vaccine development leveraging on peptide-nanoparticle technology.
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Affiliation(s)
- Nur Adilah Abdul Rahman
- Centre for Drug Delivery Technology and Vaccine (CENTRIC), Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
| | - Abdullah Al-Hadi Ahmad Fuaad
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
| | - Nor Azila Muhammad Azami
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, 56000 Cheras, Federal Territory of Kuala Lumpur, Malaysia
| | - Mohd Cairul Iqbal Mohd Amin
- Centre for Drug Delivery Technology and Vaccine (CENTRIC), Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
| | - Fazren Azmi
- Centre for Drug Delivery Technology and Vaccine (CENTRIC), Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia.
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Sann S, Heng B, Vo HTM, Arroyo Hornero R, Lay S, Sorn S, Ken S, Ou TP, Laurent D, Yay C, Ly S, Dussart P, Duong V, Sakuntabhai A, Kleinewietfeld M, Cantaert T. Increased frequencies of highly activated regulatory T cells skewed to a T helper 1-like phenotype with reduced suppressive capacity in dengue patients. mBio 2024; 15:e0006324. [PMID: 38752787 PMCID: PMC11237415 DOI: 10.1128/mbio.00063-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 04/08/2024] [Indexed: 06/13/2024] Open
Abstract
The pathogenesis of dengue involves a complex interplay between the viral factor and the host immune response. A mismatch between the infecting serotype and the adaptive memory response is hypothesized to lead to exacerbated immune responses resulting in severe dengue. Here, we aim to define in detail the phenotype and function of different regulatory T cell (Treg) subsets and their association with disease severity in a cohort of acute dengue virus (DENV)-infected Cambodian children. Treg frequencies and proliferation of Tregs are increased in dengue patients compared to age-matched controls. Tregs from dengue patients are skewed to a Th1-type Treg phenotype. Interestingly, Tregs from severe dengue patients produce more interleukin-10 after in vitro stimulation compared to Tregs from classical dengue fever patients. Functionally, Tregs from dengue patients have reduced suppressive capacity, irrespective of disease severity. Taken together, these data suggest that even though Treg frequencies are increased in the blood of acute DENV-infected patients, Tregs fail to resolve inflammation and thereby could contribute to the immunopathology of dengue. IMPORTANCE According to the World Health Organization, dengue is the fastest-spreading, epidemic-prone infectious disease. The extent of dengue virus infections increased over the years, mainly driven by globalization-including travel and trade-and environmental changes. Dengue is an immunopathology caused by an imbalanced immune response to a secondary heterotypic infection. As regulatory T cells (Tregs) are essential in maintaining immune homeostasis and dampening excessive immune activation, this study addressed the role of Tregs in dengue immunopathology. We show that Tregs from dengue patients are highly activated, skewed to a Th1-like Treg phenotype and less suppressive compared to healthy donor Tregs. Our data suggest that Tregs fail to resolve ongoing inflammation during dengue infection and hence contribute to the immunopathology of severe dengue disease. These data clarify the role of Tregs in dengue immunopathogenesis, emphasizing the need to develop T cell-based vaccines for dengue.
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Affiliation(s)
- Sotheary Sann
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
- VIB Laboratory of Translational Immunomodulation, Hasselt University, Diepenbeek, Belgium
- Department of Immunology, Hasselt University, Diepenbeek, Belgium
- University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium
| | - Borita Heng
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Hoa Thi My Vo
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Rebeca Arroyo Hornero
- VIB Laboratory of Translational Immunomodulation, Hasselt University, Diepenbeek, Belgium
- Department of Immunology, Hasselt University, Diepenbeek, Belgium
- University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium
| | - Sokchea Lay
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Sopheak Sorn
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Sreymom Ken
- Virology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Tey Putita Ou
- Virology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Denis Laurent
- Kantha Bopha Children's Hospital, Phnom Penh, Cambodia
| | | | - Sowath Ly
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Philippe Dussart
- Virology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Veasna Duong
- Virology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Anavaj Sakuntabhai
- Department of Global Health, Ecology and Emergence of Arthropod-borne Pathogens, Institut Pasteur, Université de Paris, Paris, France
- Université de Paris-Cité, CNRS UMR 2000, Paris, France
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE) USC 1510, Paris, France
| | - Markus Kleinewietfeld
- VIB Laboratory of Translational Immunomodulation, Hasselt University, Diepenbeek, Belgium
- Department of Immunology, Hasselt University, Diepenbeek, Belgium
- University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
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Dias AG, Duarte E, Zambrana JV, Cardona-Ospina JA, Bos S, Roy V, Kuan G, Balmaseda A, Alter G, Harris E. Complement-dependent virion lysis mediated by dengue-Zika virus cross-reactive antibodies correlates with protection from severe dengue disease. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.06.03.24308395. [PMID: 38883768 PMCID: PMC11177908 DOI: 10.1101/2024.06.03.24308395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Primary infection with one of four dengue virus serotypes (DENV1-4) may generate antibodies that protect or enhance subsequent secondary heterotypic infections. However, the characteristics of heterotypic cross-reactive antibodies associated with protection from symptomatic infection and severe disease are not well-defined. We selected plasma samples collected before a secondary DENV heterotypic infection that was classified either as dengue fever (DF, n = 31) or dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS, n = 33) from our longstanding pediatric cohort in Nicaragua. We screened various antibody properties to determine the features correlated with protection from DHF/DSS. Protection was associated with high levels of binding of various antibody isotypes, IgG subclasses and effector functions, including antibody-dependent complement deposition, ADCD. Although the samples were derived from DENV-exposed, Zika virus (ZIKV)-naïve individuals, the protective ADCD association was stronger when assays were conducted with recombinant ZIKV antigens. Further, we showed that a complement-mediated virion lysis (virolysis) assay conducted with ZIKV virions was strongly associated with protection, a finding reproduced in an independent sample set collected prior to secondary heterotypic inapparent versus symptomatic DENV infection. Virolysis was the main antibody feature correlated with protection from DHF/DSS and severe symptoms, such as thrombocytopenia, hemorrhagic manifestations, and plasma leakage. Hence, anti-DENV antibodies that cross-react with ZIKV, target virion-associated epitopes, and mediate complement-dependent virolysis are correlated with protection from secondary symptomatic DENV infection and DHF/DSS. These findings may support the rational design and evaluation of dengue vaccines and development of therapeutics.
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Affiliation(s)
- Antonio G Dias
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Elias Duarte
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Jose Victor Zambrana
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Harbor, MI, USA
| | - Jaime A Cardona-Ospina
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Sandra Bos
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Vicky Roy
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Guillermina Kuan
- Sustainable Sciences Institute, Managua, Nicaragua
- Centro de Salud Sócrates Flores Vivas, Ministerio de Salud, Managua, Nicaragua
| | - Angel Balmaseda
- Sustainable Sciences Institute, Managua, Nicaragua
- Laboratorio Nacional de Virologia, Centro Nacional de Diagnóstico y Referencia, Ministerio de Salud, Managua, Nicaragua
| | - Galit Alter
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
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Li X, Liao C, Wu J, Yi B, Zha R, Deng Q, Xu J, Guo C, Lu J. Distinct serum exosomal miRNA profiles detected in acute and asymptomatic dengue infections: A community-based study in Baiyun District, Guangzhou. Heliyon 2024; 10:e31546. [PMID: 38807894 PMCID: PMC11130723 DOI: 10.1016/j.heliyon.2024.e31546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/30/2024] Open
Abstract
Background In recent years, research on exosomal miRNAs has provided new insights into exploring the mechanism of viral infection and disease prevention. This study aimed to investigate the serum exosomal miRNA expression profile of dengue-infected individuals through a community survey of dengue virus (DENV) infection. Methods A seroprevalence study of 1253 healthy persons was first conducted to ascertain the DENV infection status in Baiyun District, Guangzhou. A total of 18 serum samples, including 6 healthy controls (HC), 6 asymptomatic DENV infections (AsymptDI), and 6 confirmed dengue fever patients (AcuteDI), were collected for exosome isolation and then sRNA sequencing. Through bioinformatics analysis, we discovered distinct serum exosomal miRNA profiles among the different groups and identified differentially expressed miRNAs (DEMs). These findings were further validated by qRT-PCR. Results The community survey of DENV infection indicated that the DENV IgG antibody positivity rate among the population was 11.97 % in the study area, with asymptomatic infected individuals accounting for 93.06 % of the anti-DENV IgG positives. The age and Guangzhou household registration were associated with DENV IgG antibody positivity by logistic regression analysis. Distinct miRNA profiles were observed between healthy individuals and DENV infections. A total of 1854 miRNAs were identified in 18 serum exosome samples from the initial analysis of the sequencing data. Comparative analysis revealed 23 DEMs comprising 5 upregulated and 18 downregulated miRNAs in the DENV-infected group (mergedDI). In comparison to AcuteDI, 18 upregulated miRNAs were identified in AsymptDI. Moreover, functional enrichment of the predicted target genes of DEMs indicated that these miRNAs were involved in biological processes and pathways related to cell adhesion, focal adhesion, endocytosis, and ECM-receptor interaction. Eight DEMs were validated by qRT-PCR. Conclusion The Baiyun District of Guangzhou exhibits a notable proportion of asymptomatic DENV infections as suggested in other research, highlighting the need for enhanced monitoring and screening of asymptomatic persons and the elderly. Differential miRNA expression among healthy, symptomatic and asymptomatic DENV-infected individuals suggests their potential as biomarkers for distinguishing DENV infection and offers new avenues of investigating the mechanisms underlying DENV asymptomatic infections.
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Affiliation(s)
- Xiaokang Li
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
- One Health Center of Excellence for Research & Training, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Conghui Liao
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
- One Health Center of Excellence for Research & Training, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jiani Wu
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
- One Health Center of Excellence for Research & Training, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Boyang Yi
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
- One Health Center of Excellence for Research & Training, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Renyun Zha
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
- One Health Center of Excellence for Research & Training, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Qiang Deng
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
- One Health Center of Excellence for Research & Training, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jianhua Xu
- Guangzhou Baiyun District Center for Disease Control and Prevention, Guangzhou, 510445, China
| | - Cheng Guo
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jiahai Lu
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
- One Health Center of Excellence for Research & Training, Sun Yat-Sen University, Guangzhou, 510080, China
- National Medical Products Administration Key Laboratory for Quality Monitoring and Evaluation of Vaccines and Biological Products, Guangzhou, 510080, China
- Hainan Key Novel Thinktank “Hainan Medical University ‘One Health’ Research Center”, Haikou, 571199, China
- Research Institute of Sun Yat-Sen University in Shenzhen, Shenzhen, 518057, China
- Key Laboratory of Tropical Diseases Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, 510080, China
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Henriques P, Rosa A, Caldeira-Araújo H, Soares P, Vigário AM. Flying under the radar - impact and factors influencing asymptomatic DENV infections. Front Cell Infect Microbiol 2023; 13:1284651. [PMID: 38076464 PMCID: PMC10704250 DOI: 10.3389/fcimb.2023.1284651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/06/2023] [Indexed: 12/18/2023] Open
Abstract
The clinical outcome of DENV and other Flaviviruses infections represents a spectrum of severity that ranges from mild manifestations to severe disease, which can ultimately lead to death. Nonetheless, most of these infections result in an asymptomatic outcome that may play an important role in the persistent circulation of these viruses. Also, although little is known about the mechanisms that lead to these asymptomatic infections, they are likely the result of a complex interplay between viral and host factors. Specific characteristics of the infecting viral strain, such as its replicating efficiency, coupled with host factors, like gene expression of key molecules involved in the immune response or in the protection against disease, are among crucial factors to study. This review revisits recent data on factors that may contribute to the asymptomatic outcome of the world's widespread DENV, highlighting the importance of silent infections in the transmission of this pathogen and the immune status of the host.
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Affiliation(s)
- Paulo Henriques
- Projecto Medicina, Faculdade de Ciências da Vida, Universidade da Madeira, Funchal, Portugal
| | - Alexandra Rosa
- Projecto Medicina, Faculdade de Ciências da Vida, Universidade da Madeira, Funchal, Portugal
| | - Helena Caldeira-Araújo
- Projecto Medicina, Faculdade de Ciências da Vida, Universidade da Madeira, Funchal, Portugal
- CQM-Centro de Química da Madeira, Universidade da Madeira, Funchal, Portugal
| | - Pedro Soares
- Department of Biology, CBMA (Centre of Molecular and Environmental Biology), Braga, Portugal
- Department of Biology, Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Braga, Portugal
| | - Ana Margarida Vigário
- Projecto Medicina, Faculdade de Ciências da Vida, Universidade da Madeira, Funchal, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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Kalimuddin S, Ooi EE. Minding the "T"s beyond the "B"s: Shaping vaccines for future pandemics. PLoS Biol 2023; 21:e3002351. [PMID: 37934720 PMCID: PMC10629617 DOI: 10.1371/journal.pbio.3002351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023] Open
Abstract
The COVID-19 pandemic has accelerated the development of vaccines for viral infections. However, a failure to integrate T cell immunity as a determinant of vaccine efficacy could curtail advancement of newer vaccines for pandemic preparedness.
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Affiliation(s)
- Shirin Kalimuddin
- Department of Infectious Diseases, Singapore General Hospital, Singapore
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore
| | - Eng Eong Ooi
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore
- Viral Research and Experimental Medicine Centre, SingHealth Duke-NUS Academic Medical Centre, Singapore
- Department of Clinical Research, Singapore General Hospital, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
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Ioannidis LJ, Studniberg SI, Eriksson EM, Suwarto S, Denis D, Liao Y, Shi W, Garnham AL, Sasmono RT, Hansen DS. Integrated systems immunology approach identifies impaired effector T cell memory responses as a feature of progression to severe dengue fever. J Biomed Sci 2023; 30:24. [PMID: 37055751 PMCID: PMC10103532 DOI: 10.1186/s12929-023-00916-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/02/2023] [Indexed: 04/15/2023] Open
Abstract
BACKGROUND Typical symptoms of uncomplicated dengue fever (DF) include headache, muscle pains, rash, cough, and vomiting. A proportion of cases progress to severe dengue hemorrhagic fever (DHF), associated with increased vascular permeability, thrombocytopenia, and hemorrhages. Progression to severe dengue is difficult to diagnose at the onset of fever, which complicates patient triage, posing a socio-economic burden on health systems. METHODS To identify parameters associated with protection and susceptibility to DHF, we pursued a systems immunology approach integrating plasma chemokine profiling, high-dimensional mass cytometry and peripheral blood mononuclear cell (PBMC) transcriptomic analysis at the onset of fever in a prospective study conducted in Indonesia. RESULTS After a secondary infection, progression to uncomplicated dengue featured transcriptional profiles associated with increased cell proliferation and metabolism, and an expansion of ICOS+CD4+ and CD8+ effector memory T cells. These responses were virtually absent in cases progressing to severe DHF, that instead mounted an innate-like response, characterised by inflammatory transcriptional profiles, high circulating levels of inflammatory chemokines and with high frequencies of CD4low non-classical monocytes predicting increased odds of severe disease. CONCLUSIONS Our results suggests that effector memory T cell activation might play an important role ameliorating severe disease symptoms during a secondary dengue infection, and in the absence of that response, a strong innate inflammatory response is required to control viral replication. Our research also identified discrete cell populations predicting increased odds of severe disease, with potential diagnostic value.
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Affiliation(s)
- Lisa J Ioannidis
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, The University of Melbourne, Parkville, VIC, Australia
| | - Stephanie I Studniberg
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, The University of Melbourne, Parkville, VIC, Australia
| | - Emily M Eriksson
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, The University of Melbourne, Parkville, VIC, Australia
| | - Suhendro Suwarto
- Division of Tropical and Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo National Hospital (RSCM), Jakarta, Indonesia
| | - Dionisius Denis
- Eijkman Research Center for Molecular Biology, Jakarta, Indonesia
| | - Yang Liao
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
| | - Wei Shi
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia
| | - Alexandra L Garnham
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- School of Mathematics and Statistics, The University of Melbourne, Parkville, VIC, Australia
| | - R Tedjo Sasmono
- Eijkman Research Center for Molecular Biology, Jakarta, Indonesia
| | - Diana S Hansen
- Department of Medical Biology, The University of Melbourne, Parkville, VIC, Australia.
- Department of Microbiology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia.
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9
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Robinson ML, Glass DR, Duran V, Agudelo Rojas OL, Sanz AM, Consuegra M, Sahoo MK, Hartmann FJ, Bosse M, Gelvez RM, Bueno N, Pinsky BA, Montoya JG, Maecker H, Estupiñan Cardenas MI, Villar Centeno LA, Garrido EMR, Rosso F, Bendall SC, Einav S. Magnitude and kinetics of the human immune cell response associated with severe dengue progression by single-cell proteomics. SCIENCE ADVANCES 2023; 9:eade7702. [PMID: 36961888 PMCID: PMC10038348 DOI: 10.1126/sciadv.ade7702] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 02/21/2023] [Indexed: 06/17/2023]
Abstract
Approximately 5 million dengue virus-infected patients progress to a potentially life-threatening severe dengue (SD) infection annually. To identify the immune features and temporal dynamics underlying SD progression, we performed deep immune profiling by mass cytometry of PBMCs collected longitudinally from SD progressors (SDp) and uncomplicated dengue (D) patients. While D is characterized by early activation of innate immune responses, in SDp there is rapid expansion and activation of IgG-secreting plasma cells and memory and regulatory T cells. Concurrently, SDp, particularly children, demonstrate increased proinflammatory NK cells, inadequate expansion of CD16+ monocytes, and high expression of the FcγR CD64 on myeloid cells, yet a signature of diminished antigen presentation. Syndrome-specific determinants include suppressed dendritic cell abundance in shock/hemorrhage versus enriched plasma cell expansion in organ impairment. This study reveals uncoordinated immune responses in SDp and provides insights into SD pathogenesis in humans with potential implications for prediction and treatment.
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Affiliation(s)
- Makeda L. Robinson
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - David R. Glass
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Veronica Duran
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Chan Zuckerberg Biohub, 499 Illinois St., 4th Floor, San Francisco, CA 94158, USA
| | | | - Ana Maria Sanz
- Clinical Research Center, Fundación Valle del Lili, Cali, Colombia
| | - Monika Consuegra
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Malaya Kumar Sahoo
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Felix J. Hartmann
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Marc Bosse
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Rosa Margarita Gelvez
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Nathalia Bueno
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Benjamin A. Pinsky
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Jose G. Montoya
- Palo Alto Medical Foundation, Dr. Jack S. Remington Laboratory for Specialty Diagnostics, Palo Alto, CA, USA
| | - Holden Maecker
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Luis Angel Villar Centeno
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Elsa Marina Rojas Garrido
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Fernando Rosso
- Clinical Research Center, Fundación Valle del Lili, Cali, Colombia
- Department of Internal Medicine, Division of Infectious Diseases, Fundación Valle del Lili, Cali, Colombia
| | - Sean C. Bendall
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Shirit Einav
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Chan Zuckerberg Biohub, 499 Illinois St., 4th Floor, San Francisco, CA 94158, USA
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
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10
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Dengue virus infection - a review of pathogenesis, vaccines, diagnosis and therapy. Virus Res 2023; 324:199018. [PMID: 36493993 DOI: 10.1016/j.virusres.2022.199018] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 10/19/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022]
Abstract
The transmission of dengue virus (DENV) from an infected Aedes mosquito to a human, causes illness ranging from mild dengue fever to fatal dengue shock syndrome. The similar conserved structure and sequence among distinct DENV serotypes or different flaviviruses has resulted in the occurrence of cross reaction followed by antibody-dependent enhancement (ADE). Thus far, the vaccine which can provide effective protection against infection by different DENV serotypes remains the biggest hurdle to overcome. Therefore, deep investigation is crucial for the potent and effective therapeutic drugs development. In addition, the cross-reactivity of flaviviruses that leads to false diagnosis in clinical settings could result to delay proper intervention management. Thus, the accurate diagnostic with high specificity and sensitivity is highly required to provide prompt diagnosis in respect to render early treatment for DENV infected individuals. In this review, the recent development of neutralizing antibodies, antiviral agents, and vaccine candidates in therapeutic platform for DENV infection will be discussed. Moreover, the discovery of antigenic cryptic epitopes, principle of molecular mimicry, and application of single-chain or single-domain antibodies towards DENV will also be presented.
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11
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Cable J, Saphire EO, Hayday AC, Wiltshire TD, Mousa JJ, Humphreys DP, Breij ECW, Bruhns P, Broketa M, Furuya G, Hauser BM, Mahévas M, Carfi A, Cantaert T, Kwong PD, Tripathi P, Davis JH, Brewis N, Keyt BA, Fennemann FL, Dussupt V, Sivasubramanian A, Kim PM, Rawi R, Richardson E, Leventhal D, Wolters RM, Geuijen CAW, Sleeman MA, Pengo N, Donnellan FR. Antibodies as drugs-a Keystone Symposia report. Ann N Y Acad Sci 2023; 1519:153-166. [PMID: 36382536 PMCID: PMC10103175 DOI: 10.1111/nyas.14915] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Therapeutic antibodies have broad indications across diverse disease states, such as oncology, autoimmune diseases, and infectious diseases. New research continues to identify antibodies with therapeutic potential as well as methods to improve upon endogenous antibodies and to design antibodies de novo. On April 27-30, 2022, experts in antibody research across academia and industry met for the Keystone symposium "Antibodies as Drugs" to present the state-of-the-art in antibody therapeutics, repertoires and deep learning, bispecific antibodies, and engineering.
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Affiliation(s)
| | - Erica Ollmann Saphire
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California, USA.,Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Adrian C Hayday
- Peter Gorer Department of Immunobiology, King's College London, London, UK.,Cancer Research UK Cancer Immunotherapy Accelerator, London, UK.,Immunosurveillance Laboratory, The Francis Crick Institute, London, UK
| | | | - Jarrod J Mousa
- Department of Infectious Diseases and Center for Vaccines and Immunology, College of Veterinary Medicine, Athens, Georgia, USA.,Department of Biochemistry and Molecular Biology, Franklin College of Arts and Sciences, University of Georgia, Athens, Georgia, USA.,Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | | | - Esther C W Breij
- Translational Research and Precision Medicine, Genmab BV, Utrecht, the Netherlands
| | - Pierre Bruhns
- Institut Pasteur, Université de Paris, Unit of Antibodies in Therapy and Pathology, Paris, France
| | - Matteo Broketa
- Institut Pasteur, Université de Paris, Unit of Antibodies in Therapy and Pathology, Paris, France
| | - Genta Furuya
- Department of Preventive Medicine and Department of Pathology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Blake M Hauser
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
| | - Matthieu Mahévas
- Service de Médecine Interne, Centre de Référence des Cytopénies Auto-immunes de l'adulte, Centre Hospitalier Universitaire Henri-Mondor, Assistance Publique-Hôpitaux de Paris, Université Paris-Est Créteil, Créteil, France
| | - Andrea Carfi
- Moderna Inc., Cambridge, Massachusetts, USA.,Department of Pathology, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Peter D Kwong
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Prabhanshu Tripathi
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | | | | | - Bruce A Keyt
- IGM Biosciences, Inc., Mountainview, California, USA
| | | | - Vincent Dussupt
- Emerging Infectious Diseases Branch, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | | | - Philip M Kim
- Department of Molecular Genetics, Donnelly Centre for Cellular and Biomolecular Research, Toronto, Ontario, Canada.,Department of Computer Science, University of Toronto, Toronto, Ontario, Canada
| | - Reda Rawi
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Eve Richardson
- Department of Statistics, University of Oxford, Oxford, UK
| | | | - Rachael M Wolters
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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12
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Rajamanickam A, Nathella PK, Venkataraman A, Varadarjan P, Kannan S, Pandiarajan AN, Renji RM, Elavarasan E, Thimmaiah A, Sasidaran K, Krishnamoorthy N, Natarajan S, Ramaswamy G, Sundaram B, Putlibai S, Hissar S, Selladurai E, Uma Devi KR, Nutman TB, Babu S. Unique cellular immune signatures of multisystem inflammatory syndrome in children. PLoS Pathog 2022; 18:e1010915. [PMID: 36322537 PMCID: PMC9629618 DOI: 10.1371/journal.ppat.1010915] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 10/04/2022] [Indexed: 11/11/2022] Open
Abstract
The clinical presentation of MIS-C overlaps with other infectious/non-infectious diseases such as acute COVID-19, Kawasaki disease, acute dengue, enteric fever, and systemic lupus erythematosus. We examined the ex-vivo cellular parameters with the aim of distinguishing MIS-C from other syndromes with overlapping clinical presentations. MIS-C children differed from children with non-MIS-C conditions by having increased numbers of naïve CD8+ T cells, naïve, immature and atypical memory B cells and diminished numbers of transitional memory, stem cell memory, central and effector memory CD4+ and CD8+ T cells, classical, activated memory B and plasma cells and monocyte (intermediate and non-classical) and dendritic cell (plasmacytoid and myeloid) subsets. All of the above alterations were significantly reversed at 6-9 months post-recovery in MIS-C. Thus, MIS-C is characterized by a distinct cellular signature that distinguishes it from other syndromes with overlapping clinical presentations. Trial Registration: ClinicalTrials.gov clinicaltrial.gov. No: NCT04844242.
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Affiliation(s)
- Anuradha Rajamanickam
- National Institutes of Health-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India
- * E-mail: (AR); (NPV)
| | - Pavan Kumar Nathella
- ICMR-National Institute for Research in Tuberculosis, Chennai, India
- * E-mail: (AR); (NPV)
| | | | | | - Srinithi Kannan
- Institute of Child Health and Hospital for Children, Chennai, India
| | - Arul Nancy Pandiarajan
- National Institutes of Health-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India
| | - Rachel Mariam Renji
- National Institutes of Health-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India
| | | | | | | | | | | | | | | | | | - Syed Hissar
- ICMR-National Institute for Research in Tuberculosis, Chennai, India
| | | | | | - Thomas B. Nutman
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Subash Babu
- National Institutes of Health-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
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13
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Vo HTM, Upasani V, Auerswald H, Lay S, Sann S, Vanderlinden A, Ken S, Sorn S, Ly S, Duong V, Dussart P, Cantaert T. Temporal patterns of functional anti-dengue antibodies in dengue infected individuals with different disease outcome or infection history. Sci Rep 2022; 12:17863. [PMID: 36284116 PMCID: PMC9596418 DOI: 10.1038/s41598-022-21722-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 09/30/2022] [Indexed: 01/20/2023] Open
Abstract
Heterotypic secondary dengue virus (DENV) infection is a risk factor for the development of severe disease. To assess the contribution of the developing polyclonal humoral immune response to the course of acute infection, we have determined anti-DENV IgG titers, neutralizing antibodies, percentages of antibodies binding to DENV-infected cells and antibody‑dependent enhancement (ADE) to the infecting serotype in DENV-infected Cambodian children (n = 58), ranging from asymptomatic dengue to severe disease. The results showed that ADE titers are highest against the infecting serotype during heterotypic secondary DENV-2 infection. Moreover, IgG titers, neutralizing antibodies and ADE titers against the infecting serotype peak at D10 and are maintained until D60 after laboratory-confirmed secondary DENV infection. Anti-DENV IgG titers and the magnitude of the functional antibody response were higher in secondary DENV-infected patients compared to primary infected patients. No differences in antibody titers, neutralizing or enhancing antibodies could be observed between asymptomatic or hospitalized patients between 6 and 8 days after laboratory-confirmed DENV-1 infection. However, at this time point, the level of IgG bound to DENV-infected cells was associated with disease severity in hospitalized patients. Taken together, our data offer insights for more comprehensive interpretation of antibody response profile to natural infection and its correlation to disease outcome.
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Affiliation(s)
- Hoa Thi My Vo
- Immunology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
- Centre for Tropical Medicine, Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
| | - Vinit Upasani
- Immunology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Heidi Auerswald
- Virology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Sokchea Lay
- Immunology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Sotheary Sann
- Immunology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Axelle Vanderlinden
- Immunology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Sreymom Ken
- Virology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Sopheak Sorn
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Sowath Ly
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Veasna Duong
- Virology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
| | - Philippe Dussart
- Virology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia
- The Pasteur Network, Institut Pasteur de Madagascar, Antananarivo, Madagascar
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, The Pasteur Network, Phnom Penh, Cambodia.
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14
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Marzan-Rivera N, Serrano-Collazo C, Cruz L, Pantoja P, Ortiz-Rosa A, Arana T, Martinez MI, Burgos AG, Roman C, Mendez LB, Geerling E, Pinto AK, Brien JD, Sariol CA. Infection order outweighs the role of CD4 + T cells in tertiary flavivirus exposure. iScience 2022; 25:104764. [PMID: 35982798 PMCID: PMC9379573 DOI: 10.1016/j.isci.2022.104764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/12/2022] [Accepted: 07/11/2022] [Indexed: 11/22/2022] Open
Abstract
The link between CD4+ T and B cells during immune responses to DENV and ZIKV and their roles in cross-protection during heterologous infection is an active area of research. Here we used CD4+ lymphocyte depletions to dissect the impact of cellular immunity on humoral responses during a tertiary flavivirus infection in macaques. We show that CD4+ depletion in DENV/ZIKV-primed animals followed by DENV resulted in dysregulated adaptive immune responses. We show a delay in DENV-specific IgM/IgG antibody titers and binding and neutralization in the DENV/ZIKV-primed CD4-depleted animals but not in ZIKV/DENV-primed CD4-depleted animals. This study confirms the critical role of CD4+ cells in priming an early effective humoral response during sequential flavivirus infections. Our work here suggests that the order of flavivirus exposure affects the outcome of a tertiary infection. Our findings have implications for understanding the complex flavivirus immune responses and for the development of effective flavivirus vaccines.
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Affiliation(s)
- Nicole Marzan-Rivera
- Department of Microbiology and Medical Zoology, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
| | - Crisanta Serrano-Collazo
- Unit of Comparative Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
| | - Lorna Cruz
- Department of Microbiology and Medical Zoology, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
- Unit of Comparative Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
| | - Petraleigh Pantoja
- Unit of Comparative Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
| | - Alexandra Ortiz-Rosa
- Department of Biology, University of Puerto Rico Rio Piedras Campus, San Juan, PR 00931, USA
| | - Teresa Arana
- Department of Microbiology and Medical Zoology, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
- Unit of Comparative Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
| | - Melween I. Martinez
- Unit of Comparative Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
- Caribbean Primate Research Center, School of Medicine, University of Puerto Rico-Medical Sciences Campus, Toa Baja, PR 00952, USA
| | - Armando G. Burgos
- Unit of Comparative Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
- Caribbean Primate Research Center, School of Medicine, University of Puerto Rico-Medical Sciences Campus, Toa Baja, PR 00952, USA
| | - Chiara Roman
- Unit of Comparative Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
| | - Loyda B. Mendez
- Department of Science & Technology, Universidad Ana G. Mendez, Recinto de Carolina, Carolina, PR 00985, USA
| | - Elizabeth Geerling
- Department of Molecular Microbiology and Immunology, Saint Louis University, St Louis, MO 631204, USA
| | - Amelia K. Pinto
- Department of Molecular Microbiology and Immunology, Saint Louis University, St Louis, MO 631204, USA
| | - James D. Brien
- Department of Molecular Microbiology and Immunology, Saint Louis University, St Louis, MO 631204, USA
| | - Carlos A. Sariol
- Department of Microbiology and Medical Zoology, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
- Unit of Comparative Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
- Department of Biology, University of Puerto Rico Rio Piedras Campus, San Juan, PR 00931, USA
- Department of Internal Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR 00935, USA
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15
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Xiong N, Sun Q. Identification of stage-related and severity-related biomarkers and exploration of immune landscape for Dengue by comprehensive analyses. Virol J 2022; 19:130. [PMID: 35918744 PMCID: PMC9344228 DOI: 10.1186/s12985-022-01853-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 07/14/2022] [Indexed: 11/22/2022] Open
Abstract
Background At present, there are still no specific therapeutic drugs and appropriate vaccines for Dengue. Therefore, it is important to explore distinct clinical diagnostic indicators. Methods In this study, we combined differentially expressed genes (DEGs) analysis, weighted co-expression network analysis (WGCNA) and Receiver Operator Characteristic Curve (ROC) to screen a stable and robust biomarker with diagnosis value for Dengue patients. CIBERSORT was used to evaluate immune landscape of Dengue patients. Gene Ontology (GO) enrichment, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis and Gene set enrichment analysis (GSEA) were applied to explore potential functions of hub genes. Results CD38 and Plasma cells have excellent Area Under the Curve (AUC) in distinguishing clinical stages for Dengue patients, and activated memory CD4+ T cells and Monocytes have good AUC for this function. ZNF595 has acceptable AUC in discriminating dengue hemorrhagic fever (DHF) from dengue fever (DF) in whole acute stages. Analyzing any serotype, we can obtain consistent results. Negative inhibition of viral replication based on GO, KEGG and GSEA analysis results, up-regulated autophagy genes and the impairing immune system are potential reasons resulting in DHF. Conclusions CD38, Plasma cells, activated memory CD4+ T cells and Monocytes can be used to distinguish clinical stages for dengue patients, and ZNF595 can be used to discriminate DHF from DF, regardless of serotypes. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12985-022-01853-8.
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Affiliation(s)
- Nan Xiong
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, People's Republic of China.,Kunming Medical University, Kunming, 650500, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, 650118, People's Republic of China
| | - Qiangming Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, People's Republic of China. .,Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, 650118, People's Republic of China.
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16
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Liu YE, Saul S, Rao AM, Robinson ML, Agudelo Rojas OL, Sanz AM, Verghese M, Solis D, Sibai M, Huang CH, Sahoo MK, Gelvez RM, Bueno N, Estupiñan Cardenas MI, Villar Centeno LA, Rojas Garrido EM, Rosso F, Donato M, Pinsky BA, Einav S, Khatri P. An 8-gene machine learning model improves clinical prediction of severe dengue progression. Genome Med 2022; 14:33. [PMID: 35346346 PMCID: PMC8959795 DOI: 10.1186/s13073-022-01034-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 02/24/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Each year 3-6 million people develop life-threatening severe dengue (SD). Clinical warning signs for SD manifest late in the disease course and are nonspecific, leading to missed cases and excess hospital burden. Better SD prognostics are urgently needed. METHODS We integrated 11 public datasets profiling the blood transcriptome of 365 dengue patients of all ages and from seven countries, encompassing biological, clinical, and technical heterogeneity. We performed an iterative multi-cohort analysis to identify differentially expressed genes (DEGs) between non-severe patients and SD progressors. Using only these DEGs, we trained an XGBoost machine learning model on public data to predict progression to SD. All model parameters were "locked" prior to validation in an independent, prospectively enrolled cohort of 377 dengue patients in Colombia. We measured expression of the DEGs in whole blood samples collected upon presentation, prior to SD progression. We then compared the accuracy of the locked XGBoost model and clinical warning signs in predicting SD. RESULTS We identified eight SD-associated DEGs in the public datasets and built an 8-gene XGBoost model that accurately predicted SD progression in the independent validation cohort with 86.4% (95% CI 68.2-100) sensitivity and 79.7% (95% CI 75.5-83.9) specificity. Given the 5.8% proportion of SD cases in this cohort, the 8-gene model had a positive and negative predictive value (PPV and NPV) of 20.9% (95% CI 16.7-25.6) and 99.0% (95% CI 97.7-100.0), respectively. Compared to clinical warning signs at presentation, which had 77.3% (95% CI 58.3-94.1) sensitivity and 39.7% (95% CI 34.7-44.9) specificity, the 8-gene model led to an 80% reduction in the number needed to predict (NNP) from 25.4 to 5.0. Importantly, the 8-gene model accurately predicted subsequent SD in the first three days post-fever onset and up to three days prior to SD progression. CONCLUSIONS The 8-gene XGBoost model, trained on heterogeneous public datasets, accurately predicted progression to SD in a large, independent, prospective cohort, including during the early febrile stage when SD prediction remains clinically difficult. The model has potential to be translated to a point-of-care prognostic assay to reduce dengue morbidity and mortality without overwhelming limited healthcare resources.
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Affiliation(s)
- Yiran E. Liu
- grid.168010.e0000000419368956Institute for Immunity, Transplantation and Infection, School of Medicine, Stanford University, CA Stanford, USA ,grid.168010.e0000000419368956Cancer Biology Graduate Program, School of Medicine, Stanford University, CA Stanford, USA ,grid.168010.e0000000419368956Division of Infectious Diseases and Geographic Medicine, Department of Medicine, School of Medicine, Stanford University, CA Stanford, USA
| | - Sirle Saul
- grid.168010.e0000000419368956Division of Infectious Diseases and Geographic Medicine, Department of Medicine, School of Medicine, Stanford University, CA Stanford, USA
| | - Aditya Manohar Rao
- grid.168010.e0000000419368956Institute for Immunity, Transplantation and Infection, School of Medicine, Stanford University, CA Stanford, USA ,grid.168010.e0000000419368956Immunology Graduate Program, School of Medicine, Stanford University, CA Stanford, USA
| | - Makeda Lucretia Robinson
- grid.168010.e0000000419368956Division of Infectious Diseases and Geographic Medicine, Department of Medicine, School of Medicine, Stanford University, CA Stanford, USA ,grid.168010.e0000000419368956Department of Pathology, School of Medicine, Stanford University, CA Stanford, USA
| | | | - Ana Maria Sanz
- grid.477264.4Clinical Research Center, Fundación Valle del Lili, Cali, Colombia
| | - Michelle Verghese
- grid.168010.e0000000419368956Department of Pathology, School of Medicine, Stanford University, CA Stanford, USA
| | - Daniel Solis
- grid.168010.e0000000419368956Department of Pathology, School of Medicine, Stanford University, CA Stanford, USA
| | - Mamdouh Sibai
- grid.168010.e0000000419368956Department of Pathology, School of Medicine, Stanford University, CA Stanford, USA
| | - Chun Hong Huang
- grid.168010.e0000000419368956Department of Pathology, School of Medicine, Stanford University, CA Stanford, USA
| | - Malaya Kumar Sahoo
- grid.168010.e0000000419368956Department of Pathology, School of Medicine, Stanford University, CA Stanford, USA
| | - Rosa Margarita Gelvez
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Bucaramanga, Colombia
| | - Nathalia Bueno
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Bucaramanga, Colombia
| | | | | | | | - Fernando Rosso
- grid.477264.4Clinical Research Center, Fundación Valle del Lili, Cali, Colombia ,grid.477264.4Division of Infectious Diseases, Department of Internal Medicine, Fundación Valle del Lili, Cali, Colombia
| | - Michele Donato
- grid.168010.e0000000419368956Institute for Immunity, Transplantation and Infection, School of Medicine, Stanford University, CA Stanford, USA ,grid.168010.e0000000419368956Center for Biomedical Informatics Research, Department of Medicine, School of Medicine, Stanford University, CA Stanford, USA
| | - Benjamin A. Pinsky
- grid.168010.e0000000419368956Division of Infectious Diseases and Geographic Medicine, Department of Medicine, School of Medicine, Stanford University, CA Stanford, USA ,grid.168010.e0000000419368956Department of Pathology, School of Medicine, Stanford University, CA Stanford, USA
| | - Shirit Einav
- grid.168010.e0000000419368956Division of Infectious Diseases and Geographic Medicine, Department of Medicine, School of Medicine, Stanford University, CA Stanford, USA ,grid.168010.e0000000419368956Department of Microbiology and Immunology, School of Medicine, Stanford University, CA Stanford, USA
| | - Purvesh Khatri
- grid.168010.e0000000419368956Institute for Immunity, Transplantation and Infection, School of Medicine, Stanford University, CA Stanford, USA ,grid.168010.e0000000419368956Center for Biomedical Informatics Research, Department of Medicine, School of Medicine, Stanford University, CA Stanford, USA
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17
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Single-cell Temporal Analysis of Natural Dengue Infection Reveals Skin-Homing Lymphocyte Expansion One Day before Defervescence. iScience 2022; 25:104034. [PMID: 35345453 PMCID: PMC8957021 DOI: 10.1016/j.isci.2022.104034] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 02/02/2022] [Accepted: 03/02/2022] [Indexed: 11/28/2022] Open
Abstract
Effective clinical management of acute dengue virus (DENV) infection relies on the timing of suitable treatments during the disease progression. We analyzed single-cell transcriptomic profiles of the peripheral blood mononuclear cell samples from two DENV patients, collected daily during acute phase and also at convalescence. Key immune cell types demonstrated different dynamic responses over the course of the infection. On the day before defervescence (Day −1), we observed the peak expression of several prominent genes in the adaptive immunological pathways. We also characterized unique effector T cell clusters that expressed skin-homing signature genes at Day −1, whereas upregulation of skin and gut homing genes was also observed in plasma cells and plasmablasts during the febrile period. This work provides an overview of unique molecular dynamics that signify the entry of the critical phase, and the findings could improve the patient management of DENV infection. Time-course scRNA-seq reveals immune response dynamics during acute dengue infection Rapid transcriptional switching was observed one day before fever subsided (Day -1) Skin-homing signatures were observed in specific T cells during the febrile phase Expansion of skin-homing CD69+ PD-1+ T cells at Day -1 was confirmed with FACS
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18
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Mapalagamage M, Weiskopf D, Sette A, De Silva AD. Current Understanding of the Role of T Cells in Chikungunya, Dengue and Zika Infections. Viruses 2022; 14:v14020242. [PMID: 35215836 PMCID: PMC8878350 DOI: 10.3390/v14020242] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/14/2022] [Accepted: 01/15/2022] [Indexed: 02/06/2023] Open
Abstract
Arboviral infections such as Chikungunya (CHIKV), Dengue (DENV) and Zika (ZIKV) are a major disease burden in tropical and sub-tropical countries, and there are no effective vaccinations or therapeutic drugs available at this time. Understanding the role of the T cell response is very important when designing effective vaccines. Currently, comprehensive identification of T cell epitopes during a DENV infection shows that CD8 and CD4 T cells and their specific phenotypes play protective and pathogenic roles. The protective role of CD8 T cells in DENV is carried out through the killing of infected cells and the production of proinflammatory cytokines, as CD4 T cells enhance B cell and CD8 T cell activities. A limited number of studies attempted to identify the involvement of T cells in CHIKV and ZIKV infection. The identification of human immunodominant ZIKV viral epitopes responsive to specific T cells is scarce, and none have been identified for CHIKV. In CHIKV infection, CD8 T cells are activated during the acute phase in the lymph nodes/blood, and CD4 T cells are activated during the chronic phase in the joints/muscles. Studies on the role of T cells in ZIKV-neuropathogenesis are limited and need to be explored. Many studies have shown the modulating actions of T cells due to cross-reactivity between DENV-ZIKV co-infections and have repeated heterologous/homologous DENV infection, which is an important factor to consider when developing an effective vaccine.
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Affiliation(s)
- Maheshi Mapalagamage
- Department of Zoology and Environment Sciences, Faculty of Science, University of Colombo, Colombo 00700, Sri Lanka;
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA; (D.W.); (A.S.)
| | - Daniela Weiskopf
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA; (D.W.); (A.S.)
| | - Alessandro Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA; (D.W.); (A.S.)
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California San Diego (UCSD), La Jolla, CA 92037, USA
| | - Aruna Dharshan De Silva
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA; (D.W.); (A.S.)
- Department of Paraclinical Sciences, Faculty of Medicine, General Sir John Kotelawala Defence University, Colombo 10390, Sri Lanka
- Correspondence:
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19
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Yu ED, Wang H, da Silva Antunes R, Tian Y, Tippalagama R, Alahakoon SU, Premawansa G, Wijewickrama A, Premawansa S, De Silva AD, Frazier A, Grifoni A, Sette A, Weiskopf D. A Population of CD4 +CD8 + Double-Positive T Cells Associated with Risk of Plasma Leakage in Dengue Viral Infection. Viruses 2022; 14:90. [PMID: 35062294 PMCID: PMC8779337 DOI: 10.3390/v14010090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/30/2021] [Accepted: 01/03/2022] [Indexed: 02/04/2023] Open
Abstract
According to the WHO 2009 classification, dengue with warning signs is at the risk of developing severe form of dengue disease. One of the most important warning signs is plasma leakage, which can be a serious complication associated with higher morbidity and mortality. We report that the frequency of CD4+CD8+ double-positive (DP) T cells is significantly increased in patients at risk of developing plasma leakage. Transcriptomic analysis demonstrated that CD4+CD8+ DP cells were distinct from CD4+ Single Positive (SP) T cells but co-clustered with CD8+ SP cells, indicating a largely similar transcriptional profile. Twenty significant differentially expressed (DE) genes were identified between CD4+CD8+ DP and CD8+ SP cells. These genes encode OX40 and CCR4 proteins as well as other molecules associated with cell signaling on the cell surface (NT5E, MXRA8, and PTPRK). While comparing the profile of gene expression in CD4+CD8+ DP cells from patients with and without warning signs of plasma leakage, similar expression profile was observed, implying a role of CD4+CD8+ DP cells in plasma leakage through a quantitative increase rather than functional alteration. This study provided novel insight into the host immune response during the acute febrile phase of DENV infection and the role of CD4+CD8+ DP T cells in the pathogenesis of plasma leakage.
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Affiliation(s)
- Esther Dawen Yu
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; (E.D.Y.); (R.d.S.A.); (Y.T.); (R.T.); (A.D.D.S.); (A.F.); (A.G.)
| | - Hao Wang
- School of Medicine, University of California San Diego, La Jolla, CA 92037, USA;
| | - Ricardo da Silva Antunes
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; (E.D.Y.); (R.d.S.A.); (Y.T.); (R.T.); (A.D.D.S.); (A.F.); (A.G.)
| | - Yuan Tian
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; (E.D.Y.); (R.d.S.A.); (Y.T.); (R.T.); (A.D.D.S.); (A.F.); (A.G.)
| | - Rashmi Tippalagama
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; (E.D.Y.); (R.d.S.A.); (Y.T.); (R.T.); (A.D.D.S.); (A.F.); (A.G.)
| | | | | | | | - Sunil Premawansa
- Department of Zoology and Environment Sciences, University of Colombo, Colombo 00700, Sri Lanka;
| | - Aruna Dharshan De Silva
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; (E.D.Y.); (R.d.S.A.); (Y.T.); (R.T.); (A.D.D.S.); (A.F.); (A.G.)
- Genetech Research Institute, Colombo 00800, Sri Lanka;
- Department of Paraclinical Sciences, Faculty of Medicine, General Sir John Kotelawala Defence University, Mount Lavinia 10390, Sri Lanka
| | - April Frazier
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; (E.D.Y.); (R.d.S.A.); (Y.T.); (R.T.); (A.D.D.S.); (A.F.); (A.G.)
| | - Alba Grifoni
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; (E.D.Y.); (R.d.S.A.); (Y.T.); (R.T.); (A.D.D.S.); (A.F.); (A.G.)
| | - Alessandro Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; (E.D.Y.); (R.d.S.A.); (Y.T.); (R.T.); (A.D.D.S.); (A.F.); (A.G.)
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, La Jolla, CA 92037, USA
| | - Daniela Weiskopf
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; (E.D.Y.); (R.d.S.A.); (Y.T.); (R.T.); (A.D.D.S.); (A.F.); (A.G.)
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, La Jolla, CA 92037, USA
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20
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Bajrai LH, Sohrab SS, Alandijany TA, Mobashir M, Reyaz M, Kamal MA, Firoz A, Parveen S, Azhar EI. Gene Expression Profiling of Early Acute Febrile Stage of Dengue Infection and Its Comparative Analysis With Streptococcus pneumoniae Infection. Front Cell Infect Microbiol 2021; 11:707905. [PMID: 34778101 PMCID: PMC8581568 DOI: 10.3389/fcimb.2021.707905] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 09/30/2021] [Indexed: 02/05/2023] Open
Abstract
Infectious diseases are the disorders caused by organisms such as bacteria, viruses, fungi, or parasites. Although many of them are permentantly hazardous, a number of them live in and on our bodies and they are normally harmless or even helpful. Under certain circumstances, some organisms may cause diseases and these infectious diseases may be passed directly from person to person or via intermediate vectors including insects and other animals. Dengue virus and Streptococcus pneumoniae are the critical and common sources of infectious diseases. So, it is critical to understand the gene expression profiling and their inferred functions in comparison to the normal and virus infected conditions. Here, we have analyzed the gene expression profiling for dengue hemorrhagic fever, dengue fever, and normal human dataset. Similar to it, streptococcus pneumoniae infectious data were analyzed and both the outcomes were compared. Our study leads to the conclusion that the dengue hemorrhagic fever arises in result to potential change in the gene expression pattern, and the inferred functions obviously belong to the immune system, but also there are some additional potential pathways which are critical signaling pathways. In the case of pneumoniae infection, 19 pathways were enriched, almost all these pathways are associated with the immune system and 17 of the enriched pathways were common with dengue infection except platelet activation and antigen processing and presentation. In terms of the comparative study between dengue virus and Streptococcus pneumoniae infection, we conclude that cell adhesion molecules (CAMs), MAPK signaling pathway, natural killer cell mediated cytotoxicity, regulation of actin cytoskeleton, and cytokine-cytokine receptor interaction are commonly enriched in all the three cases of dengue infection and Streptococcus pneumoniae infection, focal adhesion was enriched between classical dengue fever — dengue hemorrhagic fever, dengue hemorrhagic fever—normal samples, and SP, and antigen processing and presentation and Leukocyte transendothelial migration were enriched in classical dengue fever —normal samples, dengue hemorrhagic fever—normal samples, and Streptococcus pneumoniae infection.
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Affiliation(s)
- Leena H Bajrai
- Special Infectious Agents Unit - BSL-3, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia.,Biochemistry Department, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sayed S Sohrab
- Special Infectious Agents Unit - BSL-3, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Thamir A Alandijany
- Special Infectious Agents Unit - BSL-3, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammad Mobashir
- SciLifeLab, Department of Oncology and Pathology Karolinska Institutet, Stockholm, Sweden
| | - Muddassir Reyaz
- Department of Healthcare Management, Jamia Hamdard Hamdard Nagar, New Delhi, India
| | - Mohammad A Kamal
- West China School of Nursing/Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.,Enzymoics, Novel Global Community Educational Foundation, Hebersham, NSW, Australia
| | - Ahmad Firoz
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Shabana Parveen
- Department of Bioscience, Jamia Millia Islamia, New Delhi, India
| | - Esam I Azhar
- Special Infectious Agents Unit - BSL-3, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
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21
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Mammalian animal models for dengue virus infection: a recent overview. Arch Virol 2021; 167:31-44. [PMID: 34761286 PMCID: PMC8579898 DOI: 10.1007/s00705-021-05298-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/26/2021] [Indexed: 02/07/2023]
Abstract
Dengue, a rapidly spreading mosquito-borne human viral disease caused by dengue virus (DENV), is a public health concern in tropical and subtropical areas due to its expanding geographical range. DENV can cause a wide spectrum of illnesses in humans, ranging from asymptomatic infection or mild dengue fever (DF) to life-threatening dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS). Dengue is caused by four DENV serotypes; however, dengue pathogenesis is complex and poorly understood. Establishing a useful animal model that can exhibit dengue-fever-like signs similar to those in humans is essential to improve our understanding of the host response and pathogenesis of DENV. Although several animal models, including mouse models, non-human primate models, and a recently reported tree shrew model, have been investigated for DENV infection, animal models with clinical signs that are similar to those of DF in humans have not yet been established. Although animal models are essential for understanding the pathogenesis of DENV infection and for drug and vaccine development, each animal model has its own strengths and limitations. Therefore, in this review, we provide a recent overview of animal models for DENV infection and pathogenesis, focusing on studies of the antibody-dependent enhancement (ADE) effect in animal models.
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22
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Wu W, Ren H, Lu L. Increasingly expanded future risk of dengue fever in the Pearl River Delta, China. PLoS Negl Trop Dis 2021; 15:e0009745. [PMID: 34559817 PMCID: PMC8462684 DOI: 10.1371/journal.pntd.0009745] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 08/18/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND In recent years, frequent outbreaks of dengue fever (DF) have become an increasingly serious public health issue in China, especially in the Pearl River Delta (PRD) with fast socioeconomic developments. Previous studies mainly focused on the historic DF epidemics, their influencing factors, and the prediction of DF risks. However, the future risks of this disease under both different socioeconomic development and representative concentration pathways (RCPs) scenarios remain little understood. METHODOLOGY AND PRINCIPAL FINDINGS In this study, a spatial dataset of gross domestic product (GDP), population density, and land use and land coverage (LULC) in 2050 and 2070 was obtained by simulation based on the different shared socioeconomic pathways (SSPs), and the future climatic data derived from the RCP scenarios were integrated into the Maxent models for predicting the future DF risk in the PRD region. Among all the variables included in this study, socioeconomics factors made the dominant contribution (83% or so) during simulating the current spatial distribution of the DF epidemics in the PRD region. Moreover, the spatial distribution of future DF risk identified by the climatic and socioeconomic (C&S) variables models was more detailed than that of the climatic variables models. Along with global warming and socioeconomic development, the zones with DF high and moderate risk will continue to increase, and the population at high and moderate risk will reach a maximum of 48.47 million (i.e., 63.78% of the whole PRD) under the RCP 4.5/SSP2 in 2070. CONCLUSIONS The increasing DF risk may be an inevitable public health threat in the PRD region with rapid socioeconomic developments and global warming in the future. Our results suggest that curbs in emissions and more sustainable socioeconomic growth targets offer hope for limiting the future impact of dengue, and effective prevention and control need to continue to be strengthened at the junction of Guangzhou-Foshan, north-central Zhongshan city, and central-western Dongguan city. Our study provides useful clues for relevant hygienic authorities making targeted adapting strategies for this disease.
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Affiliation(s)
- Wei Wu
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
- School of Geography and Ocean Science, Nanjing University, Nanjing, China
- Key Laboratory of Coastal zone Development and Protection, Ministry of Land and Resources of China, Nanjing, China
| | - Hongyan Ren
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
- * E-mail:
| | - Liang Lu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
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23
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Bournazos S, Vo HTM, Duong V, Auerswald H, Ly S, Sakuntabhai A, Dussart P, Cantaert T, Ravetch JV. Antibody fucosylation predicts disease severity in secondary dengue infection. Science 2021; 372:1102-1105. [PMID: 34083490 DOI: 10.1126/science.abc7303] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 01/19/2021] [Accepted: 04/14/2021] [Indexed: 12/13/2022]
Abstract
Although antiviral antibodies generally confer protective functions, antibodies against dengue virus (DENV) are associated with enhanced disease susceptibility. Antibodies can mediate DENV infection of leukocytes via Fcγ receptors, likely contributing to dengue disease pathogenesis. To determine if this mechanism accounts for variable disease severity, we examined Fab and Fc structures of anti-DENV antibodies from patients before and after infection and with variable disease outcomes. Neither antibody titers nor neutralizing activity correlated with disease severity in DENV-infected populations. Rather, DENV infection induced a specific increase in immunoglobulin G1 (IgG1) afucosylation, and the levels of afucosylated IgG1 were predictive of dengue disease severity. Thus, the IgG1 fucosylation status represents a robust prognostic tool for dengue disease, highlighting the key role of the Fc glycan structure in dengue pathogenesis.
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Affiliation(s)
- Stylianos Bournazos
- Laboratory of Molecular Genetics and Immunology, The Rockefeller University, New York, NY, USA
| | - Hoa Thi My Vo
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Veasna Duong
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Heidi Auerswald
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Sowath Ly
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Anavaj Sakuntabhai
- Functional Genetics of Infectious Diseases Unit, Department of Global Health, Institut Pasteur, Paris Cedex 15, France.,Centre National de la Recherche Scientifique (CNRS), UMR2000, Paris Cedex 15, France
| | - Philippe Dussart
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia.
| | - Jeffrey V Ravetch
- Laboratory of Molecular Genetics and Immunology, The Rockefeller University, New York, NY, USA.
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24
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Rouers A, Chng MHY, Lee B, Rajapakse MP, Kaur K, Toh YX, Sathiakumar D, Loy T, Thein TL, Lim VW, Singhal A, Yeo TW, Leo YS, Vora KA, Casimiro D, Lim B, Tucker-Kellogg L, Rivino L, Newell EW, Fink K. Immune cell phenotypes associated with disease severity and long-term neutralizing antibody titers after natural dengue virus infection. CELL REPORTS MEDICINE 2021; 2:100278. [PMID: 34095880 PMCID: PMC8149372 DOI: 10.1016/j.xcrm.2021.100278] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 02/08/2021] [Accepted: 04/21/2021] [Indexed: 12/20/2022]
Abstract
Prior immunological exposure to dengue virus can be both protective and disease-enhancing during subsequent infections with different dengue virus serotypes. We provide here a systematic, longitudinal analysis of B cell, T cell, and antibody responses in the same patients. Antibody responses as well as T and B cell activation differentiate primary from secondary responses. Hospitalization is associated with lower frequencies of activated, terminally differentiated T cells and higher percentages of effector memory CD4 T cells. Patients with more severe disease tend to have higher percentages of plasmablasts. This does not translate into long-term antibody titers, since neutralizing titers after 6 months correlate with percentages of specific memory B cells, but not with acute plasmablast activation. Overall, our unbiased analysis reveals associations between cellular profiles and disease severity, opening opportunities to study immunopathology in dengue disease and the potential predictive value of these parameters.
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Affiliation(s)
- Angeline Rouers
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
- A∗STAR ID Labs, Agency for Science, Technology and Research, Singapore 138468, Singapore
| | - Melissa Hui Yen Chng
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
| | - Bernett Lee
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
| | - Menaka P. Rajapakse
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
| | - Kaval Kaur
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
| | - Ying Xiu Toh
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
| | - Durgalakshmi Sathiakumar
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
| | - Thomas Loy
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
- A∗STAR ID Labs, Agency for Science, Technology and Research, Singapore 138468, Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
| | - Tun-Linn Thein
- National Centre for Infectious Diseases, Singapore 308442, Singapore
| | - Vanessa W.X. Lim
- National Centre for Infectious Diseases, Singapore 308442, Singapore
| | - Amit Singhal
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
- A∗STAR ID Labs, Agency for Science, Technology and Research, Singapore 138468, Singapore
- Lee Kong Chian School of Medicine, Singapore 308232, Singapore
| | - Tsin Wen Yeo
- Lee Kong Chian School of Medicine, Singapore 308232, Singapore
- Tan Tock Seng Hospital, Singapore 308433, Singapore
| | - Yee-Sin Leo
- National Centre for Infectious Diseases, Singapore 308442, Singapore
- Lee Kong Chian School of Medicine, Singapore 308232, Singapore
- Tan Tock Seng Hospital, Singapore 308433, Singapore
- Yong Loo Lin School of Medicine, Singapore 119228, Singapore
- Saw Swee Hock School of Public Health, Singapore 117549, Singapore
| | - Kalpit A. Vora
- Department of Infectious Diseases and Vaccines Research, Merck, Kenilworth, NJ, USA
| | - Danilo Casimiro
- Department of Infectious Diseases and Vaccines Research, Merck, Kenilworth, NJ, USA
| | - Bing Lim
- Merck Sharp & Dohme Translational Medicine Research Centre, 8A Biomedical Grove, Singapore 138648, Singapore
| | - Lisa Tucker-Kellogg
- Cancer and Stem Cell Biology, and Centre for Computational Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Laura Rivino
- Emerging Infectious Diseases Programme, Duke-NUS Medical School, Singapore 169857, Singapore
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
| | - Evan W. Newell
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Katja Fink
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
- Corresponding author
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25
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CD27 hiCD38 hi plasmablasts are activated B cells of mixed origin with distinct function. iScience 2021; 24:102482. [PMID: 34113823 PMCID: PMC8169951 DOI: 10.1016/j.isci.2021.102482] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/23/2020] [Accepted: 04/26/2021] [Indexed: 01/09/2023] Open
Abstract
Clinically important broadly reactive B cells evolve during multiple infections, with B cells re-activated after secondary infection differing from B cells activated after a primary infection. Here we studied CD27highCD38high plasmablasts from patients with a primary or secondary dengue virus infection. Three transcriptionally and functionally distinct clusters were identified. The largest cluster 0/1 was plasma cell-related, with cells coding for serotype cross-reactive antibodies of the IgG1 isotype, consistent with memory B cell activation during an extrafollicular response. Cells in clusters 2 and 3 expressed low levels of antibody genes and high levels of genes associated with oxidative phosphorylation, EIF2 pathway, and mitochondrial dysfunction. Clusters 2 and 3 showed a transcriptional footprint of T cell help, in line with activation from naive B cells or memory B cells. Our results contribute to the understanding of the parallel B cell activation events that occur in humans after natural primary and secondary infection.
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26
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Lin CY, Huang CH, Wang WH, Tenhunen J, Hung LC, Lin CC, Chen YC, Chen YH, Liao WT. Mono-(2-ethylhexyl) phthalate Promotes Dengue Virus Infection by Decreasing IL-23-Mediated Antiviral Responses. Front Immunol 2021; 12:599345. [PMID: 33659001 PMCID: PMC7919524 DOI: 10.3389/fimmu.2021.599345] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 01/11/2021] [Indexed: 11/30/2022] Open
Abstract
Exposure to environmental hormones such as di(2-ethylhexyl) phthalate (DEHP) has become a critical human health issue globally. This study aimed to investigate the correlations between DEHP/mono-(2-ethylhexyl) phthalate (MEHP) levels and macrophage-associated immune responses and clinical manifestations in dengue virus (DV)-infected patients. Among 89 DV-infected patients, those with DV infection-related gastrointestinal (GI) bleeding (n = 13, 15% of patients) had significantly higher DEHP exposure than those without GI bleeding (n = 76, 85% of patients), which were 114.2 ng/ml versus 52.5 ng/ml ΣDEHP in urine; p = 0.023). In an in vitro study using cultured human monocyte-derived macrophages (MDMs) to investigate the effects of MEHP, treatment increased IL-1β and TNF-α release but decreased IL-23 release, with negative correlations observed between urine ΣDEHP and serum IL-23 levels in patients. MEHP-treated MDMs had lower antiviral Th17 response induction activity in mixed T-cell response tests. The in vitro data showed that MEHP increased DV viral load and decreased IL-23 release dose-dependently, and adding IL-23 to MEHP-exposed MDMs significantly reduced the DV viral load. MEHP also suppressed IL-23 expression via the peroxisome proliferator-activated receptor-gamma (PPAR-γ) pathway. Further, the PPAR-γ antagonist GW9662 significantly reversed MEHP-induced IL-23 suppression and reduced the DV viral load. These study findings help to explain the associations between high MEHP levels and the high global burden of dengue disease.
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Affiliation(s)
- Chun-Yu Lin
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Graduate Institute of Medicine, College of Medicine, Center for Tropical Medicine and Infectious Diseases Research, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Surgical Sciences, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Chung-Hao Huang
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Graduate Institute of Medicine, College of Medicine, Center for Tropical Medicine and Infectious Diseases Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Hung Wang
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Graduate Institute of Medicine, College of Medicine, Center for Tropical Medicine and Infectious Diseases Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jyrki Tenhunen
- Department of Surgical Sciences, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Ling-Chien Hung
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Graduate Institute of Medicine, College of Medicine, Center for Tropical Medicine and Infectious Diseases Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chi-Chou Lin
- Department of Biotechnology, College of Biomedical Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Cheng Chen
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Graduate Institute of Medicine, College of Medicine, Center for Tropical Medicine and Infectious Diseases Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yen-Hsu Chen
- School of Medicine, Graduate Institute of Medicine, College of Medicine, Center for Tropical Medicine and Infectious Diseases Research, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.,Department of Biological Science and Technology, College of Biological Science and Technology, National Chiao Tung University, HsinChu, Taiwan
| | - Wei-Ting Liao
- Department of Biotechnology, College of Biomedical Science, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Upasani V, Vo HTM, Auerswald H, Laurent D, Heng S, Duong V, Rodenhuis-Zybert IA, Dussart P, Cantaert T. Direct Infection of B Cells by Dengue Virus Modulates B Cell Responses in a Cambodian Pediatric Cohort. Front Immunol 2021; 11:594813. [PMID: 33643283 PMCID: PMC7907177 DOI: 10.3389/fimmu.2020.594813] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 12/24/2020] [Indexed: 12/11/2022] Open
Abstract
Dengue is an acute viral disease caused by dengue virus (DENV), which is transmitted by Aedes mosquitoes. Symptoms of DENV infection range from inapparent to severe and can be life-threatening. DENV replicates in primary immune cells such as dendritic cells and macrophages, which contribute to the dissemination of the virus. Susceptibility of other immune cells such as B cells to direct infection by DENV and their subsequent response to infection is not well defined. In a cohort of 60 Cambodian children, we showed that B cells are susceptible to DENV infection. Moreover, we show that B cells can support viral replication of laboratory adapted and patient-derived DENV strains. B cells were permissive to DENV infection albeit low titers of infectious virions were released in cell supernatants CD300a, a phosphatidylserine receptor, was identified as a potential attachment factor or receptor for entry of DENV into B cells. In spite of expressing Fcγ-receptors, antibody-mediated enhancement of DENV infection was not observed in B cells in an in vitro model. Direct infection by DENV induced proliferation of B cells in dengue patients in vivo and plasmablast/plasma cell formation in vitro. To summarize, our results show that B cells are susceptible to direct infection by DENV via CD300a and the subsequent B cell responses could contribute to dengue pathogenesis.
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Affiliation(s)
- Vinit Upasani
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia.,Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | - Hoa Thi My Vo
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Heidi Auerswald
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Denis Laurent
- Kantha Bopha Children Hospital, Phnom Penh, Cambodia
| | - Sothy Heng
- Kantha Bopha Children Hospital, Phnom Penh, Cambodia
| | - Veasna Duong
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Izabela A Rodenhuis-Zybert
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | - Philippe Dussart
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
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28
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Vo HTM, Duong V, Ly S, Li QZ, Dussart P, Cantaert T. Autoantibody Profiling in Plasma of Dengue Virus-Infected Individuals. Pathogens 2020; 9:E1060. [PMID: 33352902 PMCID: PMC7766539 DOI: 10.3390/pathogens9121060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 12/23/2022] Open
Abstract
Dengue is an arboviral disease caused by dengue virus (DENV) with high prevalence in tropical and sub-tropical regions. Autoimmune syndromes following dengue can be observed in long term follow up. Anti-DENV antibodies are cross-reactive with surface antigens on endothelial cells or platelets and could be involved in the pathogenesis of dengue. However, no studies have analyzed the autoantibody repertoire and its roles in dengue pathogenesis. Hence, we aimed to describe the autoantibody profile in dengue patients with different disease severities. We utilized a protein array with 128 putative autoantigens to screen for IgM and IgG reactivity in plasma obtained from healthy donors (n = 8), asymptomatic individuals infected with DENV (n = 11) and hospitalized dengue patients (n = 21). Even though the patient cohort is small, we show that 80 IgM and 6 IgG autoantibodies were elevated in DENV infected patients compared to age-matched healthy donors. Individuals undergoing a primary DENV infection showed higher amounts of IgG autoantibodies, not IgM autoantibodies, compared to individuals undergoing secondary infection. No differences were observed between asymptomatic and hospitalized dengue patients. Nineteen autoantibodies, which react against several coagulation and complement components, correlated with platelet counts in severe dengue patients. This current study provides a framework to explore a possible role of candidate autoantibodies in dengue immunopathogenesis.
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Affiliation(s)
- Hoa Thi My Vo
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, 5 Monivong Blvd., Phnom Penh 12201, Cambodia;
| | - Veasna Duong
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, 5 Monivong Blvd., Phnom Penh 12201, Cambodia; (V.D.); (P.D.)
| | - Sowath Ly
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, 5 Monivong Blvd., Phnom Penh 12201, Cambodia;
| | - Quan-Zhen Li
- Department of Immunology and Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA;
| | - Philippe Dussart
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, 5 Monivong Blvd., Phnom Penh 12201, Cambodia; (V.D.); (P.D.)
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, 5 Monivong Blvd., Phnom Penh 12201, Cambodia;
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29
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Wang Y, He Y, Tong J, Qin Y, Xie T, Li J, Li J, Xiang J, Cui Y, Higgs ES, Xiang J. Characterization of an Asymptomatic Cohort of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infected Individuals Outside of Wuhan, China. Clin Infect Dis 2020; 71:2132-2138. [PMID: 32442265 PMCID: PMC7314201 DOI: 10.1093/cid/ciaa629] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/20/2020] [Indexed: 01/08/2023] Open
Abstract
PURPOSE We aimed to further clarify the epidemiological and clinical characteristics of asymptomatic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections. METHODS We identified close contacts of confirmed coronavirus disease 2019 (COVID-19) cases in northeast Chongqing, China, who were confirmed by real-time reverse transcription polymerase chain reaction-positive (RT-PCR+). We stratified this cohort by normal vs abnormal findings on chest computed tomography (CT) and compared the strata regarding comorbidities, demographics, laboratory findings, viral transmission and other factors. RESULTS Between January 2020 and March 2020, we identified and hospitalized 279 RT-PCR+ contacts of COVID-19 patients. 63 (23%) remained asymptomatic until discharge; 29 had abnormal and 34 had normal chest CT findings. The mean cohort age was 39.3 years, and 87.3% had no comorbidities. Mean time to diagnosis after close contact with a COVID-19 index patient was 16.0 days, and it was 13.4 days and 18.7 days for those with abnormal and normal CT findings, respectively (P < .05). Nine patients (14.3%) transmitted the virus to others; 4 and 5 were in the abnormal and normal CT strata, respectively. The median length of time for nucleic acid to turn negative was 13 days compared with 10.4 days in those with normal chest CT scans (P < .05). CONCLUSIONS A portion of asymptomatic individuals were capable of transmitting the virus to others. Given the frequency and potential infectiousness of asymptomatic infections, testing of traced contacts is essential. Studies of the impact of treatment of asymptomatic RT-PCR+ individuals on disease progression and transmission should be undertaken.
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Affiliation(s)
- Yubo Wang
- Department of Respiratory Medicine, Daping Hospital, Army Medical
University, Chongqing, China
| | - Yong He
- Department of Respiratory Medicine, Daping Hospital, Army Medical
University, Chongqing, China
| | - Jin Tong
- Department of Respiratory Medicine, Second Affiliated Hospital of
Chongqing Medical University, Chongqing, China
| | - Yalan Qin
- Department of Critical Care Medicine, Second Affiliated Hospital of
Chongqing Medical University, Chongqing, China
| | - Ting Xie
- Department of Infection, Chongqing Three Gorges Central
Hospital, Chongqing, China
| | - Jianghua Li
- Department of Respiratory Medicine, Daping Hospital, Army Medical
University, Chongqing, China
| | - Jianrong Li
- Department of Respiratory Medicine, Wanzhou District
Hospital, Chongqing, China
| | - Jianhua Xiang
- Department of Respiratory Medicine, Chongqing Three Gorges Central
Hospital, Chongqing, China
| | - Yong Cui
- Department of Critical Care Medicine, Chongqing Three Gorges Central
Hospital, Chongqing, China
| | - Elizabeth S Higgs
- Division of Clinical Research, National Institute of Allergy and
Infectious Diseases, National Institutes of Health, Bethesda,
Maryland, USA
| | - Jianglin Xiang
- Department of Infection, Chongqing Three Gorges Central
Hospital, Chongqing, China
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30
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Elong Ngono A, Syed T, Nguyen AV, Regla-Nava JA, Susantono M, Spasova D, Aguilar A, West M, Sparks J, Gonzalez A, Branche E, DeHart JL, Vega JB, Karmali PP, Chivukula P, Kamrud K, Aliahmad P, Wang N, Shresta S. CD8 + T cells mediate protection against Zika virus induced by an NS3-based vaccine. SCIENCE ADVANCES 2020; 6:eabb2154. [PMID: 33148638 PMCID: PMC7673678 DOI: 10.1126/sciadv.abb2154] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 09/21/2020] [Indexed: 05/07/2023]
Abstract
Zika virus (ZIKV) is associated with congenital malformations in infants born to infected mothers, and with Guillain-Barré syndrome in infected adults. Development of ZIKV vaccines has focused predominantly on the induction of neutralizing antibodies, although a suboptimal antibody response may theoretically enhance disease severity through antibody-dependent enhancement (ADE). Here, we report induction of a protective anti-ZIKV CD8+ T cell response in the HLA-B*0702 Ifnar1-/- transgenic mice using an alphavirus-based replicon RNA vaccine expressing ZIKV nonstructural protein NS3, a potent T cell antigen. The NS3 vaccine did not induce a neutralizing antibody response but elicited polyfunctional CD8+ T cells that were necessary and sufficient for preventing death in lethally infected adult mice and fetal growth restriction in infected pregnant mice. These data identify CD8+ T cells as the major mediators of ZIKV NS3 vaccine-induced protection and suggest a new strategy to develop safe and effective anti-flavivirus vaccines.
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Affiliation(s)
- Annie Elong Ngono
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Thasneem Syed
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Anh-Viet Nguyen
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Jose Angel Regla-Nava
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Mercylia Susantono
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Darina Spasova
- Synthetic Genomics Inc., 11149 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Allison Aguilar
- Synthetic Genomics Inc., 11149 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Melissa West
- Synthetic Genomics Inc., 11149 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Jessica Sparks
- Synthetic Genomics Inc., 11149 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Andrew Gonzalez
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Emilie Branche
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Jason L DeHart
- Synthetic Genomics Inc., 11149 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Jerel Boyd Vega
- Arcturus Therapeutics Inc., 10628 Science Center Drive, Suite 250, San Diego, CA 92121, USA
| | - Priya Prakash Karmali
- Arcturus Therapeutics Inc., 10628 Science Center Drive, Suite 250, San Diego, CA 92121, USA
| | - Padmanabh Chivukula
- Arcturus Therapeutics Inc., 10628 Science Center Drive, Suite 250, San Diego, CA 92121, USA
| | - Kurt Kamrud
- Synthetic Genomics Inc., 11149 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Parinaz Aliahmad
- Synthetic Genomics Inc., 11149 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Nathaniel Wang
- Synthetic Genomics Inc., 11149 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Sujan Shresta
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA.
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31
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Matangkasombut P, Manopwisedjaroen K, Pitabut N, Thaloengsok S, Suraamornkul S, Yingtaweesak T, Duong V, Sakuntabhai A, Paul R, Singhasivanon P. Dengue viremia kinetics in asymptomatic and symptomatic infection. Int J Infect Dis 2020; 101:90-97. [PMID: 32992011 DOI: 10.1016/j.ijid.2020.09.1446] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Dengue infection is a global health threat. While symptomatic cases contribute to morbidity and mortality, the majority of infected people are asymptomatic but serve as an important reservoir. However, the kinetics of viremia in asymptomatic infections remains unknown. METHODS We enrolled 279 hospital-based symptomatic index cases and quantified dengue virus (DENV) RNA at enrollment and at the day of defervescence. To identify asymptomatic cases, 175 household members of index cases were monitored for clinical symptoms during follow-up, and blood was taken twice weekly to test for and quantify DENV RNA until cleared. RESULTS We detected DENV in thirteen asymptomatic household members (7.43%). Their DENV serotypes were primarily the same as those of their family index cases. The median peak DENV viremia in asymptomatic subjects was lower than that of symptomatic individuals during the febrile phase, and the viral decay rate was slower in asymptomatic infections. CONCLUSIONS DENV level and kinetics in asymptomatic individuals differed significantly from those of symptomatic cases. Despite the lower viremia, the slower decay rate in asymptomatic infections could lead to their prolonging the infectious reservoir. The improvement of transmission control to prevent such long-lived asymptomatic infections from transmitting the DENV is needed.
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Affiliation(s)
- Ponpan Matangkasombut
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand; Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Bangkok, Thailand.
| | | | - Nada Pitabut
- Office of Research Services, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Faculty of Medicine, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand
| | - Sasikanya Thaloengsok
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | | | | | - Veasna Duong
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, PO Box 983, Phnom Penh, Cambodia
| | - Anavaj Sakuntabhai
- Institut Pasteur, Functional Genetics of Infectious Diseases Unit, UMR 2000 (CNRS), Paris 75015, France
| | - Richard Paul
- Institut Pasteur, Functional Genetics of Infectious Diseases Unit, UMR 2000 (CNRS), Paris 75015, France
| | - Pratap Singhasivanon
- Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
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32
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Finkelstein JL, Colt S, Layden AJ, Krisher JT, Stewart-Ibarra AM, Polhemus M, Beltrán-Ayala E, Tedesco JM, Cárdenas WB, Endy T, Mehta S. Micronutrients, Immunological Parameters, and Dengue Virus Infection in Coastal Ecuador: A Nested Case-Control Study in an Infectious Disease Surveillance Program. J Infect Dis 2020; 221:91-101. [PMID: 31428794 DOI: 10.1093/infdis/jiz427] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 08/16/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Micronutrients are known to modulate host immunity, and there is limited literature on this association in the context of dengue virus infection (DENV). METHODS Using a nested case-control design in a surveillance program, we measured the following: anthropometry; nutritional biomarkers including serum ferritin, soluble transferrin receptor, retinol-binding protein (RBP), 25-hydroxy vitamin D, folate, and vitamin B12; and a panel of immune response markers. We then compared these measures across 4 illness categories: healthy control, nonfebrile DENV, other febrile illness (OFI), and apparent DENV using multivariate polytomous logistic regression models. RESULTS Among 142 participants, serum ferritin (ng/mL) was associated with apparent DENV compared to healthy controls (odds ratio [OR], 2.66; confidence interval [CI], 1.53-4.62; P = .001), and RBP concentrations (µmol/L) were associated with apparent DENV (OR, 0.03; CI, 0.00-0.30; P = .003) and OFI (OR, 0.02; CI, 0.00-0.24; P = .003). In a subset of 71 participants, interleukin-15 levels (median fluorescent intensity) were positively associated with apparent DENV (OR, 1.09; CI, 1.03-1.14; P = .001) and negatively associated with nonfebrile DENV (OR, 0.89; CI, 0.80-0.99; P = .03) compared to healthy controls. CONCLUSIONS After adjusting for the acute-phase response, serum ferritin and RBP concentrations were associated with apparent DENV and may represent biomarkers of clinical importance in the context of dengue illness.
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Affiliation(s)
| | - Susannah Colt
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
| | - Alexander J Layden
- Division of Nutritional Sciences, Cornell University, Ithaca, New York.,University of Pittsburgh School of Medicine, Pennyslvania
| | - Jesse T Krisher
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
| | - Anna M Stewart-Ibarra
- Department of Medicine and Center for Global Health and Translational Science, SUNY Upstate Medical University, Syracuse, New York
| | - Mark Polhemus
- Department of Medicine and Center for Global Health and Translational Science, SUNY Upstate Medical University, Syracuse, New York
| | - Efraín Beltrán-Ayala
- Ministry of Health, Machala, El Oro, Ecuador.,Department of Medicine, Technical University of Machala, El Oro, Ecuador
| | - Julia M Tedesco
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
| | - Washington B Cárdenas
- Escuela Superior Politécnica del Litoral, Laboratorio para Investigaciones Biomédicas, Guayaquil, Ecuador
| | - Timothy Endy
- Department of Medicine and Center for Global Health and Translational Science, SUNY Upstate Medical University, Syracuse, New York
| | - Saurabh Mehta
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
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TLR2 on blood monocytes senses dengue virus infection and its expression correlates with disease pathogenesis. Nat Commun 2020; 11:3177. [PMID: 32576819 PMCID: PMC7311456 DOI: 10.1038/s41467-020-16849-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 05/27/2020] [Indexed: 12/13/2022] Open
Abstract
Vascular permeability and plasma leakage are immune-pathologies of severe dengue virus (DENV) infection, but the mechanisms underlying the exacerbated inflammation during DENV pathogenesis are unclear. Here, we demonstrate that TLR2, together with its co-receptors CD14 and TLR6, is an innate sensor of DENV particles inducing inflammatory cytokine expression and impairing vascular integrity in vitro. Blocking TLR2 prior to DENV infection in vitro abrogates NF-κB activation while CD14 and TLR6 block has a moderate effect. Moreover, TLR2 block prior to DENV infection of peripheral blood mononuclear cells prevents activation of human vascular endothelium, suggesting a potential role of the TLR2-responses in vascular integrity. TLR2 expression on CD14 + + classical monocytes isolated in an acute phase from DENV-infected pediatric patients correlates with severe disease development. Altogether, these data identify a role for TLR2 in DENV infection and provide insights into the complex interaction between the virus and innate receptors that may underlie disease pathogenesis.
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34
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Izmirly AM, Alturki SO, Alturki SO, Connors J, Haddad EK. Challenges in Dengue Vaccines Development: Pre-existing Infections and Cross-Reactivity. Front Immunol 2020; 11:1055. [PMID: 32655548 PMCID: PMC7325873 DOI: 10.3389/fimmu.2020.01055] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 05/01/2020] [Indexed: 12/31/2022] Open
Abstract
Dengue is one of the most frequently transmitted mosquito-borne diseases in the world, which creates a significant public health concern globally, especially in tropical and subtropical countries. It is estimated that more than 390 million people are infected with dengue virus each year and around 96 million develop clinical pathologies. Dengue infections are not only a health problem but also a substantial economic burden. To date, there are no effective antiviral therapies and there is only one licensed dengue vaccine that only demonstrated protection in the seropositive (Immune), naturally infected with dengue, but not dengue seronegative (Naïve) vaccines. In this review, we address several immune components and their interplay with the dengue virus. Additionally, we summarize the literature pertaining to current dengue vaccine development and advances. Moreover, we review some of the factors affecting vaccine responses, such as the pre-vaccination environment, and provide an overview of the significant challenges that face the development of an efficient/protective dengue vaccine including the presence of multiple serotypes, antibody-dependent enhancement (ADE), as well as cross-reactivity with other flaviviruses. Finally, we discuss targeting T follicular helper cells (Tfh), a significant cell population that is essential for the production of high-affinity antibodies, which might be one of the elements needed to be specifically targeted to enhance vaccine precision to dengue regardless of dengue serostatus.
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Affiliation(s)
- Abdullah M Izmirly
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Drexel University College of Medicine, Philadelphia, PA, United States.,Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, United States.,Department of Medical Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sana O Alturki
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, United States.,Department of Medical Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sawsan O Alturki
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, United States.,Department of Medical Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jennifer Connors
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Drexel University College of Medicine, Philadelphia, PA, United States.,Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, United States
| | - Elias K Haddad
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Drexel University College of Medicine, Philadelphia, PA, United States.,Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, United States
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35
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Wilken L, Rimmelzwaan GF. Adaptive Immunity to Dengue Virus: Slippery Slope or Solid Ground for Rational Vaccine Design? Pathogens 2020; 9:pathogens9060470. [PMID: 32549226 PMCID: PMC7350362 DOI: 10.3390/pathogens9060470] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 12/15/2022] Open
Abstract
The four serotypes of dengue virus are the most widespread causes of arboviral disease, currently placing half of the human population at risk of infection. Pre-existing immunity to one dengue virus serotype can predispose to severe disease following secondary infection with a different serotype. The phenomenon of immune enhancement has complicated vaccine development and likely explains the poor long-term safety profile of a recently licenced dengue vaccine. Therefore, alternative vaccine strategies should be considered. This review summarises studies dissecting the adaptive immune responses to dengue virus infection and (experimental) vaccination. In particular, we discuss the roles of (i) neutralising antibodies, (ii) antibodies to non-structural protein 1, and (iii) T cells in protection and pathogenesis. We also address how these findings could translate into next-generation vaccine approaches that mitigate the risk of enhanced dengue disease. Finally, we argue that the development of a safe and efficacious dengue vaccine is an attainable goal.
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36
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Waggoner JJ, Katzelnick LC, Burger-Calderon R, Gallini J, Moore RH, Kuan G, Balmaseda A, Pinsky BA, Harris E. Antibody-Dependent Enhancement of Severe Disease Is Mediated by Serum Viral Load in Pediatric Dengue Virus Infections. J Infect Dis 2020; 221:1846-1854. [PMID: 32236481 PMCID: PMC7213574 DOI: 10.1093/infdis/jiz618] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/19/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Low preexisting anti-dengue virus (DENV) antibody levels are associated with elevated disease severity. While antibody-dependent enhancement of dengue is thought to be driven by viral load, this has not been conclusively shown. We evaluated the association between preinfection anti-DENV antibody titers, viral load, and disease severity among 133 dengue cases in a Nicaraguan pediatric cohort study. METHODS Viral load was quantified in acute-phase serum by real-time reverse transcription polymerase chain reaction and analyzed in relation to preinfection antibody titer (measured by inhibition enzyme-linked immunosorbent assay) and dengue severity, categorized using 3 definitions. RESULTS Higher viral load was significantly associated with dengue severity; for each increase of 1.0 log10 copies/mL, the odds of severe dengue increased approximately 50%, regardless of severity definition. Viral load at presentation and the odds of severe disease were highest among patients with low to intermediate preinfection antibody titers and lowest among those with the highest antibody titers. We showed the effect of preinfection antibody titer on disease severity was mediated by viral load for each of 3 dengue severity outcomes. CONCLUSIONS This study demonstrates the association between preinfection anti-DENV antibody titer, serum viral load, and disease severity, and provides evidence for the mechanism of antibody-dependent enhancement in dengue cases.
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Affiliation(s)
- Jesse J Waggoner
- Department of Medicine, Emory University, Atlanta, Georgia, USA
- Department of Global Health, Rollins School of Public Health, Atlanta, Georgia, USA
| | - Leah C Katzelnick
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California, USA
| | | | - Julia Gallini
- Biostatistics Collaboration Core, Department of Biostatistics and Bioinformatics, Emory University, Atlanta, Georgia, USA
| | - Renee H Moore
- Biostatistics Collaboration Core, Department of Biostatistics and Bioinformatics, Emory University, Atlanta, Georgia, USA
| | - Guillermina Kuan
- Centro de Salud Sócrates Flores Vivas, Ministry of Health, Managua, Nicaragua
| | - Angel Balmaseda
- Sustainable Sciences Institute, Managua, Nicaragua
- Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua
| | - Benjamin A Pinsky
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
- Department of Medicine, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, California, USA
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California, USA
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Balz K, Trassl L, Härtel V, Nelson PP, Skevaki C. Virus-Induced T Cell-Mediated Heterologous Immunity and Vaccine Development. Front Immunol 2020; 11:513. [PMID: 32296430 PMCID: PMC7137989 DOI: 10.3389/fimmu.2020.00513] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 03/06/2020] [Indexed: 12/15/2022] Open
Abstract
Heterologous immunity (H.I.) is a consequence of an encounter with a specific antigen, which can alter the subsequent immune response to a different antigen. This can happen at the innate immune system level—often called trained immunity or innate immune memory—and/or at the adaptive immune system level involving T memory cells and antibodies. Viruses may also induce T cell-mediated H.I., which can confer protection or drive immunopathology against other virus subtypes, related or unrelated viruses, other pathogens, auto- or allo-antigens. It is important to understand the underlying mechanisms for the development of antiviral “universal” vaccines and broader T cell responses rather than just subtype-specific antibody responses as in the case of influenza. Furthermore, knowledge about determinants of vaccine-mediated H.I. may inform public health policies and provide suggestions for repurposing existing vaccines. Here, we introduce H.I. and provide an overview of evidence on virus- and antiviral vaccine-induced T cell-mediated cross-reactive responses. We also discuss the factors influencing final clinical outcome of virus-mediated H.I. as well as non-specific beneficial effects of live attenuated antiviral vaccines such as measles and vaccinia. Available epidemiological and mechanistic data have implications both for the development of new vaccines and for personalized vaccinology, which are presented. Finally, we formulate future research priorities and opportunities.
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Affiliation(s)
- Kathrin Balz
- German Center for Lung Research (DZL), Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Lilith Trassl
- German Center for Lung Research (DZL), Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Valerie Härtel
- German Center for Lung Research (DZL), Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Philipp P Nelson
- German Center for Lung Research (DZL), Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Chrysanthi Skevaki
- German Center for Lung Research (DZL), Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
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Matheus S, Talla C, Labeau B, de Laval F, Briolant S, Berthelot L, Vray M, Rousset D. Performance of 2 Commercial Serologic Tests for Diagnosing Zika Virus Infection. Emerg Infect Dis 2019; 25:1153-1160. [PMID: 31107211 PMCID: PMC6537740 DOI: 10.3201/eid2506.180361] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Reliable serologic tests are needed for diagnosis and surveillance of Zika virus infection. We evaluated the Euroimmun and Dia.Pro serologic tests for detection of Zika virus IgM and IgG by using a panel of 199 samples from a region endemic for flaviviruses. Kinetics of Zika virus antibodies were monitored from 300 sequential specimens sampled over a period of 10 months after infection. We observed suboptimal performance; sensitivity for Zika virus IgM was low, especially in the Euroimmun assay (49%), whereas IgM could be detected for months with the Dia.pro assay. The specificity of the Zika virus IgG assays was also low, especially that of Dia.Pro (62%); findings were strongly influenced by the epidemiologic context. These results highlight the complexity of serologic diagnosis of Zika virus infection in regions endemic for flaviviruses. Accurate analysis of the performance of assays is required to adapt and interpret algorithms.
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39
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Adaptive immune responses to primary and secondary dengue virus infections. Nat Rev Immunol 2019; 19:218-230. [PMID: 30679808 DOI: 10.1038/s41577-019-0123-x] [Citation(s) in RCA: 164] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Dengue is the leading mosquito-borne viral illness infecting humans. Owing to the circulation of multiple serotypes, global expansion of the disease and recent gains in vaccination coverage, pre-existing immunity to dengue virus is abundant in the human population, and secondary dengue infections are common. Here, we contrast the mechanisms initiating and sustaining adaptive immune responses during primary infection with the immune pathways that are pre-existing and reactivated during secondary dengue. We also discuss new developments in our understanding of the contributions of CD4+ T cells, CD8+ T cells and antibodies to immunity and memory recall. Memory recall may lead to protective or pathological outcomes, and understanding of these processes will be key to developing or refining dengue vaccines to be safe and effective.
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40
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Upasani V, Vo HTM, Ung S, Heng S, Laurent D, Choeung R, Duong V, Sorn S, Ly S, Rodenhuis-Zybert IA, Dussart P, Cantaert T. Impaired Antibody-Independent Immune Response of B Cells in Patients With Acute Dengue Infection. Front Immunol 2019; 10:2500. [PMID: 31736948 PMCID: PMC6834554 DOI: 10.3389/fimmu.2019.02500] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 10/07/2019] [Indexed: 12/14/2022] Open
Abstract
Dengue is a mosquito-borne viral disease caused by dengue virus (DENV). The disease is endemic to more than 100 countries with 390 million dengue infections per year. Humoral immune responses during primary and secondary DENV infections are well-investigated. However, the impact of DENV infection on B cell subsets and their antibody-independent functions are not well-documented. Through this study, we aimed to define the distribution of B cell subsets in the acute phase of DENV infection and characterize the effect of DENV infection on B cell functions such as differentiation into memory and plasma cells and cytokine production. In our cohort of Cambodian children, we observed decreased percentages of CD24hiCD38hi B cells and CD27− naïve B cells within the CD19 population and increased percentages of CD27+CD38hiCD138+ plasma cells as early as 4 days post appearance of fever in patients with severe dengue compared to patients with mild disease. Lower percentages of CD19+CD24hiCD38hi B cells in DENV-infected patients were associated with decreased concentrations of soluble CD40L in patient plasma and decreased platelet counts in these patients. In addition, CD19+CD24hiCD38hi and CD19+CD27− B cells from DENV-infected patients did not produce IL-10 or TNF-α upon stimulation in vitro, suggesting their contribution to an altered immune response during DENV infection. In addition, CD19+CD27− naïve B cells isolated from dengue patients were refractory to TLR/anti-IgM stimulation in vitro, which correlated to the increased expression of inhibitory Fcγ receptors (FcγR) CD32 and LILRB1 on CD19+CD27− naïve B cells from DENV-infected patients. Collectively, our results indicate that a defective B cell response in dengue patients may contribute to the pathogenesis of dengue during the early phase of infection.
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Affiliation(s)
- Vinit Upasani
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia.,Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | - Hoa Thi My Vo
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Sivlin Ung
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Sothy Heng
- Kantha Bopha Children Hospital, Phnom Penh, Cambodia
| | - Denis Laurent
- Kantha Bopha Children Hospital, Phnom Penh, Cambodia
| | - Rithy Choeung
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Veasna Duong
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Sopheak Sorn
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Sowath Ly
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Izabela A Rodenhuis-Zybert
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, Netherlands
| | - Philippe Dussart
- Virology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
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Lin CY, Kolliopoulos C, Huang CH, Tenhunen J, Heldin CH, Chen YH, Heldin P. High levels of serum hyaluronan is an early predictor of dengue warning signs and perturbs vascular integrity. EBioMedicine 2019; 48:425-441. [PMID: 31526718 PMCID: PMC6838418 DOI: 10.1016/j.ebiom.2019.09.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 08/30/2019] [Accepted: 09/06/2019] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND A main pathological feature of severe dengue virus infection is endothelial hyper-permeability. The dengue virus nonstructural protein 1 (NS1) has been implicated in the vascular leakage that characterizes severe dengue virus infection, however, the molecular mechanisms involved are not known. METHODS A cohort of 250 dengue patients has been followed from the onset of symptoms to the recovery phase. Serum hyaluronan levels and several other clinical parameters were recorded. The effect of NS1 treatment of cultured fibroblasts and endothelial cells on the expressions of hyaluronan synthetic and catabolic enzymes and the hyaluronan receptor CD44, were determined, as have the effects on the formation of hyaluronan-rich matrices and endothelial permeability. FINDINGS Elevated serum hyaluronan levels (≥70 ng/ml) during early infection was found to be an independent predictor for occurrence of warning signs, and thus severe dengue fever. High circulating levels of the viral protein NS1, indicative of disease severity, correlated with high concentrations of serum hyaluronan. NS1 exposure decreased the expression of CD44 in differentiating endothelial cells impairing the integrity of vessel-like structures, and promoted the synthesis of hyaluronan in dermal fibroblasts and endothelial cells in synergy with dengue-induced pro-inflammatory mediators. Deposited hyaluronan-rich matrices around cells cultured in vitro recruited CD44-expressing macrophage-like cells, suggesting a mechanism for enhancement of inflammation. In cultured endothelial cells, perturbed hyaluronan-CD44 interactions enhanced endothelial permeability through modulation of VE-cadherin and cytoskeleton re-organization, and exacerbated the NS1-induced disruption of endothelial integrity. INTERPRETATION Pharmacological targeting of hyaluronan biosynthesis and/or its CD44-mediated signaling may limit the life-threatening vascular leakiness during moderate-to-severe dengue virus infection. FUND: This work was supported in part by grants from the Swedish Cancer Society (2018/337; 2016/445), the Swedish Research Council (2015-02757), the Ludwig Institute for Cancer Research, Uppsala University, the Ministry of Science and Technology, Taiwan (106-2314-B-037-088- and 106-2915-I-037-501-), Kaohsiung Medical University Hospital (KMUH103-3 T05) and Academy of Finland. The funders played no role in the design, interpretation or writing of the manuscript.
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Affiliation(s)
- Chun-Yu Lin
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, SE-751 23 Uppsala, Sweden; Division of Infectious Diseases, Department of Internal Medicine, Infection Control Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; School of Medicine, Graduate Institute of Medicine, Sepsis Research Center, Center of Dengue Fever Control and Research, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Surgical Sciences, Uppsala University, Akademiska Hospital, 751 85 Uppsala, Sweden
| | - Constantinos Kolliopoulos
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, SE-751 23 Uppsala, Sweden
| | - Chung-Hao Huang
- Division of Infectious Diseases, Department of Internal Medicine, Infection Control Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; School of Medicine, Graduate Institute of Medicine, Sepsis Research Center, Center of Dengue Fever Control and Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jyrki Tenhunen
- Department of Surgical Sciences, Uppsala University, Akademiska Hospital, 751 85 Uppsala, Sweden; Critical Care Medicine Research Group, Department of Intensive Care, Tampere University Hospital, Tampere, Finland
| | - Carl-Henrik Heldin
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, SE-751 23 Uppsala, Sweden
| | - Yen-Hsu Chen
- School of Medicine, Graduate Institute of Medicine, Sepsis Research Center, Center of Dengue Fever Control and Research, Kaohsiung Medical University, Kaohsiung, Taiwan; Deparent of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan; Department of Biological Science and Technology, College of Biological Science and Technology, National Chiao Tung University, HsinChu, Taiwan.
| | - Paraskevi Heldin
- Department of Medical Biochemistry and Microbiology, Uppsala University, Box 582, SE-751 23 Uppsala, Sweden.
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Metabolic perturbations and cellular stress underpin susceptibility to symptomatic live-attenuated yellow fever infection. Nat Med 2019; 25:1218-1224. [PMID: 31308506 DOI: 10.1038/s41591-019-0510-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 05/20/2019] [Indexed: 12/19/2022]
Abstract
Flaviviral infections result in a wide spectrum of clinical outcomes, ranging from asymptomatic infection to severe disease. Although the correlates of severe disease have been explored1-4, the pathophysiology that differentiates symptomatic from asymptomatic infection remains undefined. To understand the molecular underpinnings of symptomatic infection, the blood transcriptomic and metabolomic profiles of individuals were examined before and after inoculation with the live yellow fever viral vaccine (YF17D). It was found that individuals with adaptive endoplasmic reticulum (ER) stress and reduced tricarboxylic acid cycle activity at baseline showed increased susceptibility to symptomatic outcome. YF17D infection in these individuals induced maladaptive ER stress, triggering downstream proinflammatory responses that correlated with symptomatic outcome. The findings of the present study thus suggest that the ER stress response and immunometabolism underpin symptomatic yellow fever and possibly even other flaviviral infections. Modulating either ER stress or metabolism could be exploited for prophylaxis against symptomatic flaviviral infection outcome.
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43
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Ly S, Fortas C, Duong V, Benmarhnia T, Sakuntabhai A, Paul R, Huy R, Sorn S, Nguon K, Chan S, Kimsan S, Ong S, Kim KS, Buoy S, Voeung L, Dussart P, Buchy P, Tarantola A. Asymptomatic Dengue Virus Infections, Cambodia, 2012-2013. Emerg Infect Dis 2019; 25:1354-1362. [PMID: 31211672 PMCID: PMC6590774 DOI: 10.3201/eid2507.181794] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
We investigated dengue virus (DENV) and asymptomatic DENV infections in rural villages of Kampong Cham Province, Cambodia, during 2012 and 2013. We conducted perifocal investigations in and around households for 149 DENV index cases identified through hospital and village surveillance. We tested participants 0.5-30 years of age by using nonstructural 1 rapid tests and confirmed DENV infections using quantitative reverse transcription PCR or nonstructural 1-capture ELISA. We used multivariable Poisson regressions to explore links between participants' DENV infection status and household characteristics. Of 7,960 study participants, 346 (4.4%) were infected with DENV, among whom 302 (87.3%) were <15 years of age and 225 (65.0%) were <9 years of age. We identified 26 (7.5%) participants with strictly asymptomatic DENV infection at diagnosis and during follow-up. We linked symptomatic DENV infection status to familial relationships with index cases. During the 2-year study, we saw fewer asymptomatic DENV infections than expected based on the literature.
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Affiliation(s)
| | | | - Veasna Duong
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Tarik Benmarhnia
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Anavaj Sakuntabhai
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Richard Paul
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Rekol Huy
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Sopheak Sorn
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Kunthy Nguon
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Siam Chan
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Souv Kimsan
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Sivuth Ong
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Kim Srorn Kim
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Sowathy Buoy
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Lim Voeung
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
| | - Philippe Dussart
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia (S. Ly, C. Fortas, V. Duong, S. Sorn, K. Nguon, S. Chan, S. Kimsan, S. Ong, P. Dussart, P. Buchy, A. Tarantola)
- University of California, San Diego, California, USA (T. Benmarhnia)
- Institut Pasteur, Paris, France (A. Sakuntabhai, R. Paul)
- Malaria National Center, Phnom Penh (R. Huy)
- Kampong Cham Provincial Hospital, Kampong Cham, Cambodia (K.S. Kim)
- Prey Chhor District Referral Hospital, Kampong Cham (S. Buoy)
- Tboung Khmum District Referral Hospital, Thoung Khmum, Cambodia (L. Voeung)
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Roth C, Cantaert T, Colas C, Prot M, Casadémont I, Levillayer L, Thalmensi J, Langlade-Demoyen P, Gerke C, Bahl K, Ciaramella G, Simon-Loriere E, Sakuntabhai A. A Modified mRNA Vaccine Targeting Immunodominant NS Epitopes Protects Against Dengue Virus Infection in HLA Class I Transgenic Mice. Front Immunol 2019; 10:1424. [PMID: 31293584 PMCID: PMC6598640 DOI: 10.3389/fimmu.2019.01424] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 06/05/2019] [Indexed: 11/13/2022] Open
Abstract
Dengue virus (DENV) induces strong T and B cell responses upon infection. Hence, it is difficult to determine the contribution of cell-mediated immunity alone in the long lasting protection against DENV infection and disease. Numerous CD4+ and CD8+ T cell epitopes have been identified, mainly in the non-structural proteins of DENV. Taking into account the immunogenicity and peptide sequence conservation among the different DENV serotypes, a minimal DENV antigen, called DENV1-NS, has been designed. This antigen is enriched in conserved and highly antigenic epitopes located in the NS3, NS4B, and NS5 regions of DENV1. To evaluate the ability of the DENV1-NS poly-epitope to express the antigenic peptides in the context of different HLA class I molecules, we established its in vivo immunogenicity by measuring, after DNA immunization and electroporation, the activation of DENV-specific CD8 T cells in transgenic mice expressing the human HLA-A*0201, -A*2402, -B*0702, and -B*3502 class I alleles. We then engineered a lipid nanoparticle (LNP) encapsulated modified mRNA vaccine encoding DENV1-NS and tested immunogenicity and protection in these human HLA class I transgenic mice, after transient blockade of the interferon (IFN) type I receptor. Significant protection was observed, after two injections of the mRNA vaccine. Collectively, these data strongly support the development of T cell-based vaccines targeting immunodominant T cell epitopes that generate potent virus-specific T cell responses conferring immunity against DENV infection.
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Affiliation(s)
- Claude Roth
- Functional Genetics of Infectious Diseases Unit, Institut Pasteur, Paris, France
- CNRS UMR 2000: Génomique Évolutive, Modélisation et Santé, Institut Pasteur, Paris, France
| | | | - Chloé Colas
- Functional Genetics of Infectious Diseases Unit, Institut Pasteur, Paris, France
- CNRS UMR 2000: Génomique Évolutive, Modélisation et Santé, Institut Pasteur, Paris, France
| | - Matthieu Prot
- Functional Genetics of Infectious Diseases Unit, Institut Pasteur, Paris, France
- CNRS UMR 2000: Génomique Évolutive, Modélisation et Santé, Institut Pasteur, Paris, France
| | - Isabelle Casadémont
- Functional Genetics of Infectious Diseases Unit, Institut Pasteur, Paris, France
- CNRS UMR 2000: Génomique Évolutive, Modélisation et Santé, Institut Pasteur, Paris, France
| | - Laurine Levillayer
- Functional Genetics of Infectious Diseases Unit, Institut Pasteur, Paris, France
- CNRS UMR 2000: Génomique Évolutive, Modélisation et Santé, Institut Pasteur, Paris, France
| | | | | | | | - Kapil Bahl
- Moderna, Inc., Cambridge, MA, United States
| | | | - Etienne Simon-Loriere
- Functional Genetics of Infectious Diseases Unit, Institut Pasteur, Paris, France
- CNRS UMR 2000: Génomique Évolutive, Modélisation et Santé, Institut Pasteur, Paris, France
| | - Anavaj Sakuntabhai
- Functional Genetics of Infectious Diseases Unit, Institut Pasteur, Paris, France
- CNRS UMR 2000: Génomique Évolutive, Modélisation et Santé, Institut Pasteur, Paris, France
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45
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Elong Ngono A, Shresta S. Cross-Reactive T Cell Immunity to Dengue and Zika Viruses: New Insights Into Vaccine Development. Front Immunol 2019; 10:1316. [PMID: 31244855 PMCID: PMC6579874 DOI: 10.3389/fimmu.2019.01316] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 05/23/2019] [Indexed: 11/25/2022] Open
Abstract
Dengue virus (DENV) is a member of the Flavivirus family that includes Zika virus (ZIKV), West Nile virus, Japanese encephalitis virus, and yellow fever virus. As the most prevalent of the flaviviruses, DENV is responsible for tens of millions of infections each year. The clinical manifestations of infection with one of the four DENV serotypes (DENV1–4) range from no symptoms to hemorrhagic fever and shock (“severe dengue”), which is fatal in ~25,000 patients annually. Many factors contribute to the development of severe dengue, including the DENV serotype and host expression of certain HLA alleles; however, it now seems clear that pre-existing immunity to DENV—and possibly other flaviviruses—is a major precipitating factor. While primary infection with one DENV serotype elicits strong cellular and humoral immune responses that likely confer long-lived protection against the same serotype, subsequent infection with a different serotype carries an increased risk of developing severe dengue. Thus, primary DENV infection elicits cross-reactive immunity that may be protective or pathogenic, depending on the context of the subsequent infection. Many flaviviruses share high sequence homology, raising the possibility that cross-reactive immunity to one virus may contribute to protection against or pathogenesis of a second virus in a similar manner. In addition, several flaviviruses are now endemic in overlapping geographic regions, underscoring the need to gain more knowledge about the mechanisms underlying cross-reactive immunity to different DENV serotypes and flaviviruses. Here, we review our current understanding of T cell immunity to DENV, focusing on cross-reactivity with other serotypes and flaviviruses such as ZIKV, and the role of DENV-elicited CD4+ and CD8+ T cells in protection. Recent work in this area supports a beneficial role for cross-reactive T cells and provides new insights into the design of safe and efficient flavivirus/pan-flavivirus vaccines.
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Affiliation(s)
- Annie Elong Ngono
- Division of Inflammation Biology, La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Sujan Shresta
- Division of Inflammation Biology, La Jolla Institute for Immunology, La Jolla, CA, United States.,Department of Medicine, School of Medicine, University of California San Diego, La Jolla, CA, United States
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46
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Wen J, Shresta S. Antigenic cross-reactivity between Zika and dengue viruses: is it time to develop a universal vaccine? Curr Opin Immunol 2019; 59:1-8. [PMID: 30884384 DOI: 10.1016/j.coi.2019.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/06/2019] [Indexed: 12/22/2022]
Abstract
Zika and the four serotypes of dengue are closely related flaviviruses that share a high degree of structural and sequence homology and co-circulate in many regions of the world. Here, we review recent studies investigating antigenic cross-reactivity between the two viruses. We discuss the pathogenic and protective roles of cross-reactive anti-viral antibody and T cell responses, respectively, in modulating the outcome of secondary dengue or Zika infection. Based on recent findings and increased incidence of severe disease in seronegative recipients of the first dengue vaccine to be licensed, we propose that the time has come to focus on developing pan-flavivirus vaccines that protect against Zika and four dengue serotypes by eliciting protective cross-reactive T cell responses while concomitantly reducing production of cross-reactive antibodies that can exacerbate disease.
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Affiliation(s)
- Jinsheng Wen
- Division of Inflammation Biology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Institute of Arboviruses, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China; Department of Microbiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Sujan Shresta
- Division of Inflammation Biology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Institute of Arboviruses, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
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47
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Andrade P, Gimblet-Ochieng C, Modirian F, Collins M, Cárdenas M, Katzelnick LC, Montoya M, Michlmayr D, Kuan G, Balmaseda A, Coloma J, de Silva AM, Harris E. Impact of pre-existing dengue immunity on human antibody and memory B cell responses to Zika. Nat Commun 2019; 10:938. [PMID: 30808875 PMCID: PMC6391383 DOI: 10.1038/s41467-019-08845-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 02/04/2019] [Indexed: 12/21/2022] Open
Abstract
Little is known about enduring memory B cell (MBC) responses to Zika virus (ZIKV) and their relationship with circulating antibodies. Here we comprehensively assess MBC frequency and specificity alongside serum binding and neutralizing antibody responses to ZIKV ~2 weeks and ~8 months postinfection in 31 pediatric subjects with 0, 1 or >1 prior infections with the related dengue virus (DENV). ZIKV infection elicits a robust type-specific MBC response, and the majority of late convalescent anti-ZIKV serum neutralizing activity is attributable to ZIKV-specific antibodies. The number of prior DENV infections does not influence type-specific or cross-reactive MBC responses, although ZIKV has the highest cross-reactivity with DENV3. DENV cross-reactive MBCs expanded by ZIKV infection decline in number and proportion by late convalescence. Finally, ZIKV induces greater cross-reactivity in the MBC pool than in serum antibodies. Our data suggest immunity to DENV only modestly shapes breadth and magnitude of enduring ZIKV antibody responses.
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Affiliation(s)
- Paulina Andrade
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
- Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, EC170157, Ecuador
| | - Ciara Gimblet-Ochieng
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, 27599-7292, USA
| | - Faraz Modirian
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
| | - Matthew Collins
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, 27599-7292, USA
- Hope Clinic of the Emory Vaccine Center, Division of Infectious Diseases, Department of Medicine, School of Medicine, Emory University, Decatur, GA, 30030, USA
| | - Maritza Cárdenas
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
| | - Leah C Katzelnick
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
| | - Magelda Montoya
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
| | - Daniela Michlmayr
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
| | - Guillermina Kuan
- Centro de Salud Sócrates Flores Vivas, Ministry of Health, Managua, 12014, Nicaragua
- Sustainable Sciences Institute, Managua, 14007, Nicaragua
| | - Angel Balmaseda
- Sustainable Sciences Institute, Managua, 14007, Nicaragua
- Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, 16064, Nicaragua
| | - Josefina Coloma
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
| | - Aravinda M de Silva
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, 27599-7292, USA
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA.
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48
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Patro ARK, Mohanty S, Prusty BK, Singh DK, Gaikwad S, Saswat T, Chattopadhyay S, Das BK, Tripathy R, Ravindran B. Cytokine Signature Associated with Disease Severity in Dengue. Viruses 2019; 11:v11010034. [PMID: 30626045 PMCID: PMC6357178 DOI: 10.3390/v11010034] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/13/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022] Open
Abstract
Dengue is the most rapidly spreading viral disease transmitted by the bite of infected Aedes mosquitos. The pathogenesis of dengue is still unclear; although host immune responses and virus serotypes have been proposed to contribute to disease severity. In this study, we examined the circulating dengue virus (DENV) and measured plasma levels of inflammatory mediators. Ninety-eight patients during a dengue outbreak in eastern India in 2016 were included in the study. The presence of DENV was demonstrated by detecting NS1 antigen; IgM capture ELISA and serotypes were discriminated by type-specific RT-PCR and/or sequencing. Plasma samples were assayed for 41-plex cytokine/chemokines using multiplex Luminex assay. Eighty-five (87%) samples were positive by NS1/IgM capture ELISA/RT-PCR. All four serotypes of DENV were detected in this outbreak, with DENV-2 as the predominant type, seen in 55% of cases. Mixed infections were seen in 39% of subjects. Among the host inflammatory biomarkers, GM-CSF, IFN-γ, IL-10, IL-15, IL-8, MCP-1, IL-6, MIP-1β, and TNF-α levels were significantly increased in dengue with and without warning signs, in severe dengue patients in comparison to healthy controls. Four cytokines IFN-γ, GM-CSF, IL-10, and MIP-1β correlated significantly with disease severity and could serve as potential predictor for disease severity. Information on the host biomarkers and the dengue serotype may help guide in optimizing effective intervention strategies.
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Affiliation(s)
- A Raj Kumar Patro
- Infectious Disease Biology Group, Institute of Life Sciences, Bhubaneswar 751023, India.
| | - Sriprasad Mohanty
- Departments of Medicine, SCB Medical College & Hospital, Cuttack 753007, India.
| | - Birendra K Prusty
- Infectious Disease Biology Group, Institute of Life Sciences, Bhubaneswar 751023, India.
| | - Diwakar K Singh
- Infectious Disease Biology Group, Institute of Life Sciences, Bhubaneswar 751023, India.
| | - Sagar Gaikwad
- Infectious Disease Biology Group, Institute of Life Sciences, Bhubaneswar 751023, India.
| | - Tanuja Saswat
- Infectious Disease Biology Group, Institute of Life Sciences, Bhubaneswar 751023, India.
| | - Soma Chattopadhyay
- Infectious Disease Biology Group, Institute of Life Sciences, Bhubaneswar 751023, India.
| | - Bidyut K Das
- Departments of Medicine, SCB Medical College & Hospital, Cuttack 753007, India.
| | - Rina Tripathy
- Department of Biochemistry, SCB Medical College & Hospital, Cuttack 753007, India.
| | - Balachandran Ravindran
- Infectious Disease Biology Group, Institute of Life Sciences, Bhubaneswar 751023, India.
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49
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Duncan R, Grigorenko E, Fisher C, Hockman D, Lanning B. Advances in multiplex nucleic acid diagnostics for blood-borne pathogens: promises and pitfalls - an update. Expert Rev Mol Diagn 2018; 19:15-25. [DOI: 10.1080/14737159.2019.1559055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Robert Duncan
- Center for Biologics Evaluation and Research, US FDA, Silver Spring, MD, USA
| | | | - Carolyn Fisher
- Center for Biologics Evaluation and Research, US FDA, Silver Spring, MD, USA
| | | | - Bryan Lanning
- Center for Biologics Evaluation and Research, US FDA, Silver Spring, MD, USA
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50
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Popper SJ, Strouts FR, Lindow JC, Cheng HK, Montoya M, Balmaseda A, Durbin AP, Whitehead SS, Harris E, Kirkpatrick BD, Relman DA. Early Transcriptional Responses After Dengue Vaccination Mirror the Response to Natural Infection and Predict Neutralizing Antibody Titers. J Infect Dis 2018; 218:1911-1921. [PMID: 30010906 PMCID: PMC6217718 DOI: 10.1093/infdis/jiy434] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/11/2018] [Indexed: 11/13/2022] Open
Abstract
Background Several promising live attenuated dengue vaccines are in development, but information about innate immune responses and early correlates of protection is lacking. Methods We characterized human genome-wide transcripts in whole blood from 10 volunteers at 11 time points after immunization with the dengue virus type 3 (DENV-3) component of the National Institutes of Health dengue vaccine candidate TV003 and from 30 hospitalized children with acute primary DENV-3 infection. We compared day-specific gene expression patterns with subsequent neutralizing antibody (NAb) titers. Results The transcriptional response to vaccination was largely confined to days 5-20 and was dominated by an interferon-associated signature and a cell cycle signature that peaked on days 8 and 14, respectively. Changes in transcript abundance were much greater in magnitude and scope in symptomatic natural infection than following vaccination (maximum fold-change >200 vs 21 postvaccination; 3210 vs 286 transcripts with significant fold-change), but shared gene modules were induced in the same sequence. The abundances of 131 transcripts on days 8 and 9 postvaccination were strongly correlated with NAb titers measured 6 weeks postvaccination. Conclusions Live attenuated dengue vaccination elicits early transcriptional responses that mirror those found in symptomatic natural infection and provide candidate early markers of protection against DENV infection. Clinical Trials Registration NCT00831012.
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Affiliation(s)
- Stephen J Popper
- Department of Medicine, Stanford University School of Medicine, California
| | - Fiona R Strouts
- Department of Medicine, Stanford University School of Medicine, California
| | - Janet C Lindow
- Vaccine Testing Center, University of Vermont College of Medicine, Burlington
| | - Henry K Cheng
- Department of Medicine, Stanford University School of Medicine, California
| | - Magelda Montoya
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley
| | - Angel Balmaseda
- Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua
| | - Anna P Durbin
- Center for Immunization Research, Johns Hopkins Bloomberg School of Public Health, Baltimore
| | - Stephen S Whitehead
- Laboratory of Infectious Diseases, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley
| | - Beth D Kirkpatrick
- Vaccine Testing Center, University of Vermont College of Medicine, Burlington
| | - David A Relman
- Department of Medicine, Stanford University School of Medicine, California
- Department of Microbiology and Immunology, Stanford University School of Medicine
- Veterans Affairs Palo Alto Health Care System, California
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