1
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Hardisty G, Nicol MQ, Shaw DJ, Bennet ID, Bryson K, Ligertwood Y, Schwarze J, Beard PM, Hopkins J, Dutia BM. Latent gammaherpesvirus infection enhances type I IFN response and reduces virus spread in an influenza A virus co-infection model. J Gen Virol 2024; 105. [PMID: 38329395 DOI: 10.1099/jgv.0.001962] [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] [Indexed: 02/09/2024] Open
Abstract
Infections with persistent or latent viruses alter host immune homeostasis and have potential to affect the outcome of concomitant acute viral infections such as influenza A virus (IAV). Gammaherpesviruses establish life-long infections and require an on-going immune response to control reactivation. We have used a murine model of co-infection to investigate the response to IAV infection in mice latently infected with the gammaherpesvirus MHV-68. Over the course of infection, latently infected BALB/c mice showed less weight loss, clinical signs, pulmonary cellular infiltration and expression of inflammatory mediators than naïve mice infected with IAV and had significantly more activated CD8+ T cells in the lungs. Four days after IAV infection, virus spread in the lungs of latently infected animals was significantly lower than in naïve animals. By 7 days after IAV infection latently infected lungs express elevated levels of cytokines and chemokines indicating they are primed to respond to the secondary infection. Investigation at an early time point showed that 24 h after IAV infection co-infected animals had higher expression of IFNβ and Ddx58 (RIG-I) and a range of ISGs than mice infected with IAV alone suggesting that the type I IFN response plays a role in the protective effect. This effect was mouse strain dependent and did not occur in 129/Sv/Ev mice. These results offer insight into innate immune mechanisms that could be utilized to protect against IAV infection and highlight on-going and persistent viral infections as a significant factor impacting the severity of acute respiratory infections.
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Affiliation(s)
- Gareth Hardisty
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, UK
- Centre for Inflammation Research, Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh BioQuarter, 4-5 Little France Drive, Edinburgh. EH16 4UU, UK
| | - Marlynne Q Nicol
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, UK
| | - Darren J Shaw
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, UK
| | - Ian D Bennet
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, UK
| | - Karen Bryson
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, UK
| | - Yvonne Ligertwood
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, UK
| | - Jurgen Schwarze
- Centre for Inflammation Research, Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh BioQuarter, 4-5 Little France Drive, Edinburgh. EH16 4UU, UK
| | - Philippa M Beard
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, UK
- School of Life Sciences, Keele University, Keele, Staffordshire, ST5 5BF, UK
| | - John Hopkins
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, UK
| | - Bernadette M Dutia
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, EH25 9RG, UK
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2
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Maquet C, Baiwir J, Loos P, Rodriguez-Rodriguez L, Javaux J, Sandor R, Perin F, Fallon PG, Mack M, Cataldo D, Gillet L, Machiels B. Ly6C
hi
monocytes balance regulatory and cytotoxic CD4 T cell responses to control virus-induced immunopathology. Sci Immunol 2022; 7:eabn3240. [DOI: 10.1126/sciimmunol.abn3240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Gammaherpesviruses (γHVs) have coevolved with their host, leading to a remarkably high infection prevalence and establishment of latency. The lifelong persistence of γHVs in hosts appears to broadly shape host immunity, and we show here that pulmonary infection with Murid herpesvirus 4 (MuHV-4), a mouse γHV, drives the recruitment of Ly6C
hi
monocytes (MOs) into the airway, thereby modulating the host immune response. The absence of Ly6C
hi
MOs is associated with severe virus-induced immunopathology and the systemic release of inflammatory mediators. Mechanistically, MuHV-4–imprinted MOs recruit CD4 T cells to the airways and trigger immunosuppressive signaling pathways through the PD-L1/PD-1 axis, thereby dampening the deleterious activation of cytotoxic CD4 T cells. These results uncover a role for Ly6C
hi
MOs in modulating CD4 T cell functions and reveal pathways that could be targeted therapeutically to reduce detrimental immunopathological responses associated with respiratory viral infections.
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Affiliation(s)
- Céline Maquet
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Jérôme Baiwir
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Pauline Loos
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Lucia Rodriguez-Rodriguez
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Justine Javaux
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Rémy Sandor
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Fabienne Perin
- Laboratory of Biology of Tumor and Development, GIGA-Cancer ULiège and “Centre Hospitalier Universitaire de Liège (CHU)”, Liège 4000, Belgium
| | - Padraic G. Fallon
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Matthias Mack
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Didier Cataldo
- Laboratory of Biology of Tumor and Development, GIGA-Cancer ULiège and “Centre Hospitalier Universitaire de Liège (CHU)”, Liège 4000, Belgium
| | - Laurent Gillet
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Bénédicte Machiels
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
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3
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Seo SU, Seong BL. Prospects on Repurposing a Live Attenuated Vaccine for the Control of Unrelated Infections. Front Immunol 2022; 13:877845. [PMID: 35651619 PMCID: PMC9149153 DOI: 10.3389/fimmu.2022.877845] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/31/2022] [Indexed: 12/03/2022] Open
Abstract
Live vaccines use attenuated microbes to acquire immunity against pathogens in a safe way. As live attenuated vaccines (LAVs) still maintain infectivity, the vaccination stimulates diverse immune responses by mimicking natural infection. Induction of pathogen-specific antibodies or cell-mediated cytotoxicity provides means of specific protection, but LAV can also elicit unintended off-target effects, termed non-specific effects. Such mechanisms as short-lived genetic interference and non-specific innate immune response or long-lasting trained immunity and heterologous immunity allow LAVs to develop resistance to subsequent microbial infections. Based on their safety and potential for interference, LAVs may be considered as an alternative for immediate mitigation and control of unexpected pandemic outbreaks before pathogen-specific therapeutic and prophylactic measures are deployed.
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Affiliation(s)
- Sang-Uk Seo
- Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Baik-Lin Seong
- Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea.,Vaccine Innovative Technology ALliance (VITAL)-Korea, Yonsei University, Seoul, South Korea
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4
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Huang DY, Wang GM, Ke ZR, Zhou Y, Yang HH, Ma TL, Guan CX. Megakaryocytes in pulmonary diseases. Life Sci 2022; 301:120602. [DOI: 10.1016/j.lfs.2022.120602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 02/06/2023]
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5
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A gammaherpesvirus licenses CD8 T cells to protect the host from pneumovirus-induced immunopathologies. Mucosal Immunol 2020; 13:799-813. [PMID: 32424182 PMCID: PMC7116076 DOI: 10.1038/s41385-020-0293-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 03/25/2020] [Accepted: 03/31/2020] [Indexed: 02/04/2023]
Abstract
Human respiratory syncytial virus (RSV) is a pneumovirus that causes severe infections in infants worldwide. Despite intensive research, safe and effective vaccines against RSV have remained elusive. The main reason is that RSV infection of children previously immunized with formalin-inactivated-RSV vaccines has been associated with exacerbated pathology, a phenomenon called RSV vaccine-enhanced respiratory disease. In parallel, despite the high RSV prevalence, only a minor proportion of children develop severe diseases. Interestingly, variation in the immune responses against RSV or following RSV vaccination could be linked with differences of exposure to microbes during childhood. Gammaherpesviruses (γHVs), such as the Epstein-Barr virus, are persistent viruses that deeply influence the immune system of their host and could therefore affect the development of pneumovirus-induced immunopathologies for the long term. Here, we showed that a previous ɣHV infection protects against both pneumovirus vaccine-enhanced disease and pneumovirus primary infection and that CD8 T cells are essential for this protection. These observations shed a new light on the understanding of pneumovirus-induced diseases and open new perspectives for the development of vaccine strategies.
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6
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Yap XZ, Hustin LSP, Sauerwein RW. T H1-Polarized T FH Cells Delay Naturally-Acquired Immunity to Malaria. Front Immunol 2019; 10:1096. [PMID: 31156642 PMCID: PMC6533880 DOI: 10.3389/fimmu.2019.01096] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 04/30/2019] [Indexed: 11/15/2022] Open
Abstract
Humoral immunity is a critical effector arm for protection against malaria but develops only slowly after repeated infections. T cell-mediated regulatory dynamics affect the development of antibody responses to Plasmodium parasites. Here, we hypothesize that T follicular helper cell (TFH) polarization generated by repeated Plasmodium asexual blood-stage infections delays the onset of protective humoral responses. IFN-γ production promotes polarization toward TFH1 and increased generation of regulatory follicular helper cells (TFR). Delineating the mechanisms that drive TH1 polarization will provide clues for appropriate induction of lasting, protective immunity against malaria.
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Affiliation(s)
- Xi Zen Yap
- Department of Medical Microbiology, RadboudUMC Centre for Infectious Diseases, Nijmegen, Netherlands
| | - Lucie S P Hustin
- Department of Medical Microbiology, RadboudUMC Centre for Infectious Diseases, Nijmegen, Netherlands.,Institut Curie, PSL Research University, CNRS UMR168, Paris, France
| | - Robert W Sauerwein
- Department of Medical Microbiology, RadboudUMC Centre for Infectious Diseases, Nijmegen, Netherlands
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7
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Sehrawat S, Kumar D, Rouse BT. Herpesviruses: Harmonious Pathogens but Relevant Cofactors in Other Diseases? Front Cell Infect Microbiol 2018; 8:177. [PMID: 29888215 PMCID: PMC5981231 DOI: 10.3389/fcimb.2018.00177] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/08/2018] [Indexed: 11/24/2022] Open
Abstract
Most vertebrates are infected with one or more herpesviruses and remain so for the rest of their lives. The relationship of immunocompetent healthy host with herpesviruses may sometime be considered as harmonious. However, clinically severe diseases can occur when host immunity is compromised due to aging, during some stress response, co-infections or during neoplastic disease conditions. Discord can also occur during iatrogenic immunosuppression used for controlling graft rejection, in some primary genetic immunodeficiencies as well as when the virus infects a non-native host. In this review, we discuss such issues and their influence on host-herpesvirus interaction.
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Affiliation(s)
- Sharvan Sehrawat
- Department of Biological Sciences, Indian Institute of Science Education and Research Mohali, Mohali, India
| | - Dhaneshwar Kumar
- Department of Biological Sciences, Indian Institute of Science Education and Research Mohali, Mohali, India
| | - Barry T Rouse
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Sciences, The University of Tennessee, Knoxville, Knoxville, TN, United States
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8
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Cruz-Muñoz ME, Fuentes-Pananá EM. Beta and Gamma Human Herpesviruses: Agonistic and Antagonistic Interactions with the Host Immune System. Front Microbiol 2018; 8:2521. [PMID: 29354096 PMCID: PMC5760548 DOI: 10.3389/fmicb.2017.02521] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 12/04/2017] [Indexed: 12/15/2022] Open
Abstract
Viruses are the most abundant and diverse biological entities in the planet. Historically, our main interest in viruses has focused on their pathogenic role, recognized by pandemics that have decimated the world population. However, viral infections have also played a major role in the evolution of cellular organisms, both through interchanging of genes with novel functions and shaping the immune system. Examples abound of infections that seriously compromise the host integrity, but evidence of plant and insect viruses mutualistic relationships have recently surfaced in which infected hosts are better suited for survival, arguing that virus-host interactions are initially parasitic but become mutualistic over years of co-evolution. A similar mutual help scenario has emerged with commensal gut bacteria. EBV is a herpesvirus that shares more than a hundred million years of co-evolution with humans, today successfully infecting close to 100% of the adult world population. Infection is usually acquired early in childhood persisting for the host lifetime mostly without apparent clinical symptoms. Disturbance of this homeostasis is rare and results in several diseases, of which the best understood are infectious mononucleosis and several EBV-associated cancers. Less understood are recently found inborn errors of the immune system that result in primary immunodeficiencies with an increased predisposition almost exclusive to EBV-associated diseases. Puzzling to these scenarios of broken homeostasis is the co-existence of immunosuppression, inflammation, autoimmunity and cancer. Homologous to EBV, HCMV, HHV-6 and HHV-7 are herpesviruses that also latently infect most individuals. Several lines of evidence support a mutualistic equilibrium between HCMV/EBV and hosts, that when altered trigger diseases in which the immune system plays a critical role. Interestingly, these beta and gamma herpesviruses persistently infect all immune lineages and early precursor cells. In this review, we will discuss the evidence of the benefits that infection of immune cells with these herpesviruses brings to the host. Also, the circumstances in which this positive relationship is broken, predisposing the host to diseases characterized by an abnormal function of the host immune system.
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Affiliation(s)
- Mario E Cruz-Muñoz
- Laboratorio de Inmunología Molecular, Facultad de Medicina, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
| | - Ezequiel M Fuentes-Pananá
- Unidad de Investigación en Virología y Cáncer, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
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9
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Chloroquine inhibits lytic replication of Kaposi's sarcoma-associated herpesvirus by disrupting mTOR and p38-MAPK activation. Antiviral Res 2016; 133:223-33. [PMID: 27521848 DOI: 10.1016/j.antiviral.2016.08.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 08/08/2016] [Indexed: 12/19/2022]
Abstract
Lytic infection is essential for the persistent infection and pathogenesis of Kaposi's sarcoma-associated herpesvirus (KSHV), and inhibiting KSHV lytic replication may effectively prevent the occurrence of KSHV-related diseases. Chloroquine (CQ), a well-known antimalarial drug and autophagy inhibitor, exerts broad-spectrum antiviral effects and shows anti-cancer therapeutic potential. However, the ability of CQ and its derivatives to control infection of oncogenic γ-herpesvirus remains undefined. Here we reveal that CQ suppresses KSHV lytic gene expression and virion production, and shows cytotoxicity toward KSHV lytically infected B cells at clinically acceptable doses. CQ suppresses mTOR and p38-MAPK pathway activation during KSHV lytic replication but not latent infection. Furthermore, CQ blocks Epstein-Barr virus (EBV) lytic replication via a distinct mechanism that is invoked to block virion production but does not affect viral gene expression. These results suggest that CQ is an effective antiviral drug against KSHV lytic infection. Our findings indicate that CQ treatment should be considered for controlling KSHV-related diseases, particularly for primary use in co-infection of KSHV with malaria.
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10
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Matar CG, Jacobs NT, Speck SH, Lamb TJ, Moormann AM. Does EBV alter the pathogenesis of malaria? Parasite Immunol 2015; 37:433-45. [DOI: 10.1111/pim.12212] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 05/20/2015] [Indexed: 02/06/2023]
Affiliation(s)
- C. G. Matar
- Department of Microbiology and Immunology; Emory University School of Medicine; Atlanta GA USA
| | - N. T. Jacobs
- Department of Pediatrics; Emory University School of Medicine; Atlanta GA USA
| | - S. H. Speck
- Department of Microbiology and Immunology; Emory University School of Medicine; Atlanta GA USA
- Emory Vaccine Center; Emory University; Atlanta GA USA
| | - T. J. Lamb
- Department of Pediatrics; Emory University School of Medicine; Atlanta GA USA
| | - A. M. Moormann
- Program in Molecular Medicine; University of Massachusetts Medical School; Worcester MA USA
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11
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Matar CG, Anthony NR, O’Flaherty BM, Jacobs NT, Priyamvada L, Engwerda CR, Speck SH, Lamb TJ. Gammaherpesvirus Co-infection with Malaria Suppresses Anti-parasitic Humoral Immunity. PLoS Pathog 2015; 11:e1004858. [PMID: 25996913 PMCID: PMC4440701 DOI: 10.1371/journal.ppat.1004858] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 04/06/2015] [Indexed: 11/18/2022] Open
Abstract
Immunity to non-cerebral severe malaria is estimated to occur within 1-2 infections in areas of endemic transmission for Plasmodium falciparum. Yet, nearly 20% of infected children die annually as a result of severe malaria. Multiple risk factors are postulated to exacerbate malarial disease, one being co-infections with other pathogens. Children living in Sub-Saharan Africa are seropositive for Epstein Barr Virus (EBV) by the age of 6 months. This timing overlaps with the waning of protective maternal antibodies and susceptibility to primary Plasmodium infection. However, the impact of acute EBV infection on the generation of anti-malarial immunity is unknown. Using well established mouse models of infection, we show here that acute, but not latent murine gammaherpesvirus 68 (MHV68) infection suppresses the anti-malarial humoral response to a secondary malaria infection. Importantly, this resulted in the transformation of a non-lethal P. yoelii XNL infection into a lethal one; an outcome that is correlated with a defect in the maintenance of germinal center B cells and T follicular helper (Tfh) cells in the spleen. Furthermore, we have identified the MHV68 M2 protein as an important virus encoded protein that can: (i) suppress anti-MHV68 humoral responses during acute MHV68 infection; and (ii) plays a critical role in the observed suppression of anti-malarial humoral responses in the setting of co-infection. Notably, co-infection with an M2-null mutant MHV68 eliminates lethality of P. yoelii XNL. Collectively, our data demonstrates that an acute gammaherpesvirus infection can negatively impact the development of an anti-malarial immune response. This suggests that acute infection with EBV should be investigated as a risk factor for non-cerebral severe malaria in young children living in areas endemic for Plasmodium transmission.
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Affiliation(s)
- Caline G. Matar
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Microbiology and Molecular Genetics Graduate Program, Laney Graduate School, Emory University, Atlanta, Georgia, United States of America
| | - Neil R. Anthony
- Division of Pediatric Infectious Disease, Department of Pediatrics, Emory University School of Medicine, Emory Children’s Centre, Atlanta, Georgia, United States of America
| | - Brigid M. O’Flaherty
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Microbiology and Molecular Genetics Graduate Program, Laney Graduate School, Emory University, Atlanta, Georgia, United States of America
| | - Nathan T. Jacobs
- Division of Pediatric Infectious Disease, Department of Pediatrics, Emory University School of Medicine, Emory Children’s Centre, Atlanta, Georgia, United States of America
- Population Biology, Ecology and Evolution Graduate Program, Laney Graduate School, Emory University, Atlanta, Georgia, United States of America
| | - Lalita Priyamvada
- Microbiology and Molecular Genetics Graduate Program, Laney Graduate School, Emory University, Atlanta, Georgia, United States of America
- Division of Pediatric Infectious Disease, Department of Pediatrics, Emory University School of Medicine, Emory Children’s Centre, Atlanta, Georgia, United States of America
| | - Christian R. Engwerda
- Immunology and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Brisbane, Queensland, Australia
| | - Samuel H. Speck
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Emory Vaccine Center, Emory University, Atlanta, Georgia, United States of America
- * E-mail: (SHS); (TJL)
| | - Tracey J. Lamb
- Division of Pediatric Infectious Disease, Department of Pediatrics, Emory University School of Medicine, Emory Children’s Centre, Atlanta, Georgia, United States of America
- * E-mail: (SHS); (TJL)
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12
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MacDuff DA, Reese TA, Kimmey JM, Weiss LA, Song C, Zhang X, Kambal A, Duan E, Carrero JA, Boisson B, Laplantine E, Israel A, Picard C, Colonna M, Edelson BT, Sibley LD, Stallings CL, Casanova JL, Iwai K, Virgin HW. Phenotypic complementation of genetic immunodeficiency by chronic herpesvirus infection. eLife 2015; 4. [PMID: 25599590 PMCID: PMC4298697 DOI: 10.7554/elife.04494] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Accepted: 12/24/2014] [Indexed: 12/12/2022] Open
Abstract
Variation in the presentation of hereditary immunodeficiencies may be explained by genetic or environmental factors. Patients with mutations in HOIL1 (RBCK1) present with amylopectinosis-associated myopathy with or without hyper-inflammation and immunodeficiency. We report that barrier-raised HOIL-1-deficient mice exhibit amylopectin-like deposits in the myocardium but show minimal signs of hyper-inflammation. However, they show immunodeficiency upon acute infection with Listeria monocytogenes, Toxoplasma gondii or Citrobacter rodentium. Increased susceptibility to Listeria was due to HOIL-1 function in hematopoietic cells and macrophages in production of protective cytokines. In contrast, HOIL-1-deficient mice showed enhanced control of chronic Mycobacterium tuberculosis or murine γ-herpesvirus 68 (MHV68), and these infections conferred a hyper-inflammatory phenotype. Surprisingly, chronic infection with MHV68 complemented the immunodeficiency of HOIL-1, IL-6, Caspase-1 and Caspase-1;Caspase-11-deficient mice following Listeria infection. Thus chronic herpesvirus infection generates signs of auto-inflammation and complements genetic immunodeficiency in mutant mice, highlighting the importance of accounting for the virome in genotype-phenotype studies. DOI:http://dx.doi.org/10.7554/eLife.04494.001 The immune system protects an individual from invading bacteria, viruses and parasites, as well as malfunctioning or cancerous host cells. However, some people inherit genetic defects that cause part of the immune system to be missing or to not work properly. This is called a genetic immunodeficiency, and puts individuals at a higher risk of infection and disease. The symptoms of immunodeficiencies can vary substantially between individuals, even when they have defects in the same gene. For example, only some of the individuals who have defects in both of their copies of a gene called HOIL-1—which has been linked to several roles in the body's immune response—are reported to suffer from an altered susceptibility to bacterial infections and chronic (persistent) inflammation. Gaining a clear understanding of the possible factors that influence such variations in the symptoms of genetic immune deficiencies could help to speed up their diagnosis, as well as helping to develop more effective treatments. MacDuff et al. studied mice that had mutations in both copies of the mouse equivalent of the HOIL-1 gene. These mice, when raised in a clean barrier facility that reduces their exposure to viruses, were severely immunodeficient and died when infected by certain bacteria and parasites, including Listeria monocytogenes. However, they were able to tolerate infections with a herpesvirus or the bacterium that causes tuberculosis. The immunodeficiency to L. monocytogenes was linked to problems producing protective molecules called cytokines, which form a crucial part of the immune response. Unexpectedly, MacDuff et al. found that a chronic herpesvirus infection substantially protected these very immunodeficient animals from infection with Listeria monocytogenes, and the mice were able to efficiently produce protective cytokines. Mice with two other distinct genetic deficiencies that affect their immune system were also better able to survive otherwise lethal bacterial infections if they had a long-term herpesvirus infection. Macduff et al. suggest that the chronic herpesvirus infection stimulates the immune system, and so allows it to compensate for the lack of cytokine production associated with various immunodeficiencies, including those caused by mutations in the HOIL-1 gene. This suggests that the presence of viruses or other long-term infections may be responsible for some of the variability seen in the symptoms of different individuals with the same genetic immunodeficiency. This is an important concept since essentially all humans have life-long chronic infections from various herpesviruses, as well as other viruses that form the human virome. DOI:http://dx.doi.org/10.7554/eLife.04494.002
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Affiliation(s)
- Donna A MacDuff
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
| | - Tiffany A Reese
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
| | - Jacqueline M Kimmey
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, United States
| | - Leslie A Weiss
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, United States
| | - Christina Song
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
| | - Xin Zhang
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
| | - Amal Kambal
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
| | - Erning Duan
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
| | - Javier A Carrero
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
| | | | - Emmanuel Laplantine
- Laboratory of Molecular Signaling and Cell Activation, Institut Pasteur, Centre National de la Recherche Scientifique, Unité de Recherche Associée, Paris, France
| | - Alain Israel
- Laboratory of Molecular Signaling and Cell Activation, Institut Pasteur, Centre National de la Recherche Scientifique, Unité de Recherche Associée, Paris, France
| | - Capucine Picard
- St Giles Laboratory of Human Genetics of Infectious Disease, Rockefeller University, New York, United States
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
| | - Brian T Edelson
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
| | - L David Sibley
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, United States
| | - Christina L Stallings
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, United States
| | | | - Kazuhiro Iwai
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Herbert W Virgin
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, United States
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13
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Faure E. Malarial pathocoenosis: beneficial and deleterious interactions between malaria and other human diseases. Front Physiol 2014; 5:441. [PMID: 25484866 PMCID: PMC4240042 DOI: 10.3389/fphys.2014.00441] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 10/28/2014] [Indexed: 11/28/2022] Open
Abstract
In nature, organisms are commonly infected by an assemblage of different parasite species or by genetically distinct parasite strains that interact in complex ways. Linked to co-infections, pathocoenosis, a term proposed by M. Grmek in 1969, refers to a pathological state arising from the interactions of diseases within a population and to the temporal and spatial dynamics of all of the diseases. In the long run, malaria was certainly one of the most important component of past pathocoenoses. Today this disease, which affects hundreds of millions of individuals and results in approximately one million deaths each year, is always highly endemic in over 20% of the world and is thus co-endemic with many other diseases. Therefore, the incidences of co-infections and possible direct and indirect interactions with Plasmodium parasites are very high. Both positive and negative interactions between malaria and other diseases caused by parasites belonging to numerous taxa have been described and in some cases, malaria may modify the process of another disease without being affected itself. Interactions include those observed during voluntary malarial infections intended to cure neuro-syphilis or during the enhanced activations of bacterial gastro-intestinal diseases and HIV infections. Complex relationships with multiple effects should also be considered, such as those observed during helminth infections. Moreover, reports dating back over 2000 years suggested that co- and multiple infections have generally deleterious consequences and analyses of historical texts indicated that malaria might exacerbate both plague and cholera, among other diseases. Possible biases affecting the research of etiological agents caused by the protean manifestations of malaria are discussed. A better understanding of the manner by which pathogens, particularly Plasmodium, modulate immune responses is particularly important for the diagnosis, cure, and control of diseases in human populations.
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Affiliation(s)
- Eric Faure
- Aix-Marseille Université, Centre National de la Recherche Scientifique, Centrale Marseille, I2M, UMR 7373Marseille, France
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Abstract
Murine gammaherpesvirus 68 (MHV68) is a natural rodent pathogen that has been used as a model to study the pathogenesis of human gammaherpesviruses. Like other herpesviruses, MHV68 causes acute infection and establishes life-long latency in the host. Recently, it has been shown that mice latently infected with MHV68 have resistance to unrelated pathogens in secondary infection models. We therefore hypothesized that latent MHV68 infection could modulate the host response to influenza A virus. To test this hypothesis, mice were infected intranasally with influenza virus following the establishment of MHV68 latency. Mice latently infected with MHV68 showed significantly higher survival to influenza A virus infection than did PBS mock-infected mice. Latent MHV68 infection led to lower influenza viral loads and decreased inflammatory pathology in the lungs. Alveolar macrophages of mice latently infected with MHV68 showed activated status, and adoptive transfer of those activated macrophages into mice followed the infection with influenza A virus had significantly greater survival rates than control mice, suggesting that activated alveolar macrophages are a key mechanistic component in protection from secondary infections.
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15
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Virgin HW. The virome in mammalian physiology and disease. Cell 2014; 157:142-50. [PMID: 24679532 DOI: 10.1016/j.cell.2014.02.032] [Citation(s) in RCA: 390] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 02/13/2014] [Accepted: 02/13/2014] [Indexed: 02/07/2023]
Abstract
The virome contains the most abundant and fastest mutating genetic elements on Earth. The mammalian virome is constituted of viruses that infect host cells, virus-derived elements in our chromosomes, and viruses that infect the broad array of other types of organisms that inhabit us. Virome interactions with the host cannot be encompassed by a monotheistic view of viruses as pathogens. Instead, the genetic and transcriptional identity of mammals is defined in part by our coevolved virome, a concept with profound implications for understanding health and disease.
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Affiliation(s)
- Herbert W Virgin
- Department of Pathology and Immunology, Washington University School of Medicine, Campus Box 8118, 660 South Euclid Avenue, St. Louis, MO 63110, USA.
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16
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Latent gammaherpesvirus 68 infection induces distinct transcriptional changes in different organs. J Virol 2013; 88:730-8. [PMID: 24155394 DOI: 10.1128/jvi.02708-13] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Previous studies identified a role for latent herpesvirus infection in cross-protection against infection and exacerbation of chronic inflammatory diseases. Here, we identified more than 500 genes differentially expressed in spleens, livers, or brains of mice latently infected with gammaherpesvirus 68 and found that distinct sets of genes linked to different pathways were altered in the spleen compared to those in the liver. Several of the most differentially expressed latency-specific genes (e.g., the gamma interferon [IFN-γ], Cxcl9, and Ccl5 genes) are associated with known latency-specific phenotypes. Chronic herpesvirus infection, therefore, significantly alters the transcriptional status of host organs. We speculate that such changes may influence host physiology, the status of the immune system, and disease susceptibility.
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Wilmore JR, Maue AC, Lefebvre JS, Haynes L, Rochford R. AcutePlasmodium chabaudiInfection Dampens Humoral Responses to a Secondary T-Dependent Antigen but Enhances Responses to a Secondary T-Independent Antigen. THE JOURNAL OF IMMUNOLOGY 2013; 191:4731-9. [DOI: 10.4049/jimmunol.1301450] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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18
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Abstract
Chronic infections with persistent pathogens such as helminths, mycobacteria, Plasmodium, and hepatitis viruses affect more than a third of the human population and are associated with increased susceptibility to other pathogens as well as reduced vaccine efficacy. Although these observations suggest an impact of chronic infections in modulating immunity to unrelated antigens, little is known regarding the underlying mechanisms. Here, we summarize evidence of the most prevalent infections affecting immunity to unrelated pathogens and vaccines, and discuss potential mechanisms of how different bystander chronic infections might impact immune responses. We suggest that bystander chronic infections affect different stages of host responses and may impact transmission and recognition of other pathogens, innate immune responses, priming and differentiation of adaptive effector responses, as well as the development and maintenance of immunological memory. Further understanding of the immunological effects of coinfection should provide opportunities to enhance vaccine efficacy and control of infectious diseases.
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Abstract
Nearly all human beings, by the time they reach adolescence, are infected with multiple herpesviruses. At any given time, this family of viruses accounts for 35-40 billion human infections worldwide, making herpesviruses among the most prevalent pathogens known to exist. Compared to most other viruses, herpesviruses are also unique in that infection lasts the life of the host. Remarkably, despite their prevalence and persistence, little is known about how these viruses interact with their hosts, especially during the clinically asymptomatic phase of infection referred to as latency. This review explores data in human and animal systems that reveal the ability of latent herpesviruses to modulate the immune response to self and environmental antigens. From the perspective of the host, there are both potentially detrimental and surprisingly beneficial effects of this lifelong interaction. The realization that latent herpesvirus infection modulates immune responses in asymptomatic hosts forces us to reconsider what constitutes a 'normal' immune system in a healthy individual.
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Affiliation(s)
- Douglas W. White
- Division of Rheumatology, Gundersen Lutheran Medical Center, La Crosse, WI, USA
| | - R. Suzanne Beard
- Department of Biological Sciences, Purdue University, West Lafayette, IN, USA
- Department of Microbiology & Immunology, Wake Forest University School of Medicine, Winston-Salem NC, USA
| | - Erik S. Barton
- Department of Microbiology & Immunology, Wake Forest University School of Medicine, Winston-Salem NC, USA
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20
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Barton E, Mandal P, Speck SH. Pathogenesis and host control of gammaherpesviruses: lessons from the mouse. Annu Rev Immunol 2011; 29:351-97. [PMID: 21219186 DOI: 10.1146/annurev-immunol-072710-081639] [Citation(s) in RCA: 192] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Gammaherpesviruses are lymphotropic viruses that are associated with the development of lymphoproliferative diseases, lymphomas, as well as other nonlymphoid cancers. Most known gammaherpesviruses establish latency in B lymphocytes. Research on Epstein-Barr virus (EBV) and murine gammaherpesvirus 68 (MHV68/γHV68/MHV4) has revealed a complex relationship between virus latency and the stage of B cell differentiation. Available data support a model in which gammaherpesvirus infection drives B cell proliferation and differentiation. In general, the characterized gammaherpesviruses exhibit a very narrow host tropism, which has severely limited studies on the human gammaherpesviruses EBV and Kaposi's sarcoma-associated herpesvirus. As such, there has been significant interest in developing animal models in which the pathogenesis of gammaherpesviruses can be characterized. MHV68 represents a unique model to define the effects of chronic viral infection on the antiviral immune response.
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Affiliation(s)
- Erik Barton
- Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907, USA
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Barton ES, White DW, Virgin HW. Herpesvirus latency and symbiotic protection from bacterial infection. Viral Immunol 2009; 22:3-4; author reply 5-6. [PMID: 19210221 DOI: 10.1089/vim.2008.0100] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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Wiley JA, Harmsen AG. Pneumocystis infection enhances antibody-mediated resistance to a subsequent influenza infection. THE JOURNAL OF IMMUNOLOGY 2008; 180:5613-24. [PMID: 18390746 DOI: 10.4049/jimmunol.180.8.5613] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In contrast to the detrimental outcomes most often associated with the resolution of coinfections, the model presented here involving a localized Pneumocystis infection of the lung, followed 2 wk later by an influenza virus infection, results in a significant beneficial outcome for the host. In the week following the influenza infection, immunocompetent coinfected animals exhibited an accelerated rate of virus clearance, an accelerated appearance of higher influenza-specific neutralizing Ab titers in their serum and bronchoalveolar lavage fluid (BALF), significantly reduced inflammatory cytokine levels in their BALF, and reduced levels of morbidity relative to animals infected only with influenza virus. The beneficial outcome observed in coinfected immunocompetent animals was dependent on the ongoing resolution of a viable Pneumocystis infection. No differences in viral clearance were detected between coinfected and influenza-only-infected muMT mice or likewise for SCID mice. The accelerated anti-influenza response did not appear to be associated with influenza-specific CD8 T cell-mediated responses or NK cell responses in the lung. Rather, the increased rate of viral clearance was due to the enhancement of the influenza-specific Ab response, which in turn was transiently dependent upon the resolution of the ongoing Pneumocystis infection.
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Affiliation(s)
- James A Wiley
- Department of Veterinary Molecular Biology, Montana State University, Bozeman, MT 59715, USA.
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