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Letafati A, Ardekani OS, Naderisemiromi M, Norouzi M, Shafiei M, Nik S, Mozhgani SH. Unraveling the dynamic mechanisms of natural killer cells in viral infections: insights and implications. Virol J 2024; 21:18. [PMID: 38216935 PMCID: PMC10785350 DOI: 10.1186/s12985-024-02287-0] [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: 08/27/2023] [Accepted: 01/04/2024] [Indexed: 01/14/2024] Open
Abstract
Viruses pose a constant threat to human well-being, necessitating the immune system to develop robust defenses. Natural killer (NK) cells, which play a crucial role in the immune system, have become recognized as vital participants in protecting the body against viral infections. These remarkable innate immune cells possess the unique ability to directly recognize and eliminate infected cells, thereby contributing to the early control and containment of viral pathogens. However, recent research has uncovered an intriguing phenomenon: the alteration of NK cells during viral infections. In addition to their well-established role in antiviral defense, NK cells undergo dynamic changes in their phenotype, function, and regulatory mechanisms upon encountering viral pathogens. These alterations can significantly impact the effectiveness of NK cell responses during viral infections. This review explores the multifaceted role of NK cells in antiviral immunity, highlighting their conventional effector functions as well as the emerging concept of NK cell alteration in the context of viral infections. Understanding the intricate interplay between NK cells and viral infections is crucial for advancing our knowledge of antiviral immune responses and could offer valuable information for the creation of innovative therapeutic approaches to combat viral diseases.
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Affiliation(s)
- Arash Letafati
- Department of Virology, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran
| | - Omid Salahi Ardekani
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran
| | - Mina Naderisemiromi
- Department of Immunology, Faculty of Medicine and Health, The University of Manchester, Manchester, UK
| | - Mehdi Norouzi
- Department of Virology, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran
| | | | - Soheil Nik
- School of Medicine, Alborz University of Medical Sciences, Karaj, Alborz, Iran
| | - Sayed-Hamidreza Mozhgani
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran.
- Department of Microbiology and Virology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
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2
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Boudreau CM, Burke JS, Yousif AS, Sangesland M, Jastrzebski S, Verschoor C, Kuchel G, Lingwood D, Kleanthous H, De Bruijn I, Landolfi V, Sridhar S, Alter G. Antibody-mediated NK cell activation as a correlate of immunity against influenza infection. Nat Commun 2023; 14:5170. [PMID: 37620306 PMCID: PMC10449820 DOI: 10.1038/s41467-023-40699-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023] Open
Abstract
Antibodies play a critical role in protection against influenza; yet titers and viral neutralization represent incomplete correlates of immunity. Instead, the ability of antibodies to leverage the antiviral power of the innate immune system has been implicated in protection from and clearance of influenza infection. Here, post-hoc analysis of the humoral immune response to influenza is comprehensively profiled in a cohort of vaccinated older adults (65 + ) monitored for influenza infection during the 2012/2013 season in the United States (NCT: 01427309). While robust humoral immune responses arose against the vaccine and circulating strains, influenza-specific antibody effector profiles differed in individuals that later became infected with influenza, who are deficient in NK cell activating antibodies to both hemagglutinin and neuraminidase, compared to individuals who remained uninfected. Furthermore, NK cell activation was strongly associated with the NK cell senescence marker CD57, arguing for the need for selective induction of influenza-specific afucosylated NK activating antibodies in older adults to achieve protection. High dose vaccination, currently used for older adults, was insufficient to generate this NK cell-activating humoral response. Next generation vaccines able to selectively bolster NK cell activating antibodies may be required to achieve protection in the setting of progressively senescent NK cells.
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Affiliation(s)
- Carolyn M Boudreau
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, 02129, USA
- PhD Program in Virology, Division of Medical Sciences, Harvard University, Boston, MA, 02115, USA
| | - John S Burke
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, 02129, USA
| | - Ashraf S Yousif
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, 02129, USA
| | - Maya Sangesland
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, 02129, USA
- PhD Program in Virology, Division of Medical Sciences, Harvard University, Boston, MA, 02115, USA
| | | | - Chris Verschoor
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, L8S 4L8, Canada
| | - George Kuchel
- Center on Aging, UCONN Health Center, Farmington, CT, 06030, USA
| | - Daniel Lingwood
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, 02129, USA
| | | | | | | | | | - Galit Alter
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, 02129, USA.
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3
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Ferrero MR, Tavares LP, Garcia CC. The Dual Role of CCR5 in the Course of Influenza Infection: Exploring Treatment Opportunities. Front Immunol 2022; 12:826621. [PMID: 35126379 PMCID: PMC8810482 DOI: 10.3389/fimmu.2021.826621] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/31/2021] [Indexed: 12/12/2022] Open
Abstract
Influenza is one of the most relevant respiratory viruses to human health causing annual epidemics, and recurrent pandemics. Influenza disease is principally associated with inappropriate activation of the immune response. Chemokine receptor 5 (CCR5) and its cognate chemokines CCL3, CCL4 and CCL5 are rapidly induced upon influenza infection, contributing to leukocyte recruitment into the airways and a consequent effective antiviral response. Here we discuss the existing evidence for CCR5 role in the host immune responses to influenza virus. Complete absence of CCR5 in mice revealed the receptor’s role in coping with influenza via the recruitment of early memory CD8+ T cells, B cell activation and later recruitment of activated CD4+ T cells. Moreover, CCR5 contributes to inflammatory resolution by enhancing alveolar macrophages survival and reprogramming macrophages to pro-resolving phenotypes. In contrast, CCR5 activation is associated with excessive recruitment of neutrophils, inflammatory monocytes, and NK cells in models of severe influenza pneumonia. The available data suggests that, while CCL5 can play a protective role in influenza infection, CCL3 may contribute to an overwhelming inflammatory process that can harm the lung tissue. In humans, the gene encoding CCR5 might contain a 32-base pair deletion, resulting in a truncated protein. While discordant data in literature regarding this CCR5 mutation and influenza severity, the association of CCR5delta32 and HIV resistance fostered the development of different CCR5 inhibitors, now being tested in lung inflammation therapy. The potential use of CCR5 inhibitors to modulate the inflammatory response in severe human influenza infections is to be addressed.
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Affiliation(s)
- Maximiliano Ruben Ferrero
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA)-CONICET-Partner Institute of the Max Planck Society, Buenos Aires, Argentina
- Laboratory of Inflammation, Oswaldo Cruz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
- *Correspondence: Maximiliano Ruben Ferrero,
| | - Luciana Pádua Tavares
- Pulmonary and Critical Care Medicine Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, United States
| | - Cristiana Couto Garcia
- Laboratory of Respiratory Virus and Measles, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
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4
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Salazar F, Bignell E, Brown GD, Cook PC, Warris A. Pathogenesis of Respiratory Viral and Fungal Coinfections. Clin Microbiol Rev 2022; 35:e0009421. [PMID: 34788127 PMCID: PMC8597983 DOI: 10.1128/cmr.00094-21] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Individuals suffering from severe viral respiratory tract infections have recently emerged as "at risk" groups for developing invasive fungal infections. Influenza virus is one of the most common causes of acute lower respiratory tract infections worldwide. Fungal infections complicating influenza pneumonia are associated with increased disease severity and mortality, with invasive pulmonary aspergillosis being the most common manifestation. Strikingly, similar observations have been made during the current coronavirus disease 2019 (COVID-19) pandemic. The copathogenesis of respiratory viral and fungal coinfections is complex and involves a dynamic interplay between the host immune defenses and the virulence of the microbes involved that often results in failure to return to homeostasis. In this review, we discuss the main mechanisms underlying susceptibility to invasive fungal disease following respiratory viral infections. A comprehensive understanding of these interactions will aid the development of therapeutic modalities against newly identified targets to prevent and treat these emerging coinfections.
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Affiliation(s)
- Fabián Salazar
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Elaine Bignell
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Gordon D. Brown
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Peter C. Cook
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - Adilia Warris
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
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5
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Wu W, Metcalf JP. The Role of Type I IFNs in Influenza: Antiviral Superheroes or Immunopathogenic Villains? J Innate Immun 2020; 12:437-447. [PMID: 32564033 DOI: 10.1159/000508379] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/03/2020] [Indexed: 12/29/2022] Open
Abstract
The important role of interferons (IFNs) in antiviral innate immune defense is well established. Although recombinant IFN-α was approved for cancer and chronic viral infection treatment by regulatory agencies in many countries starting in 1986, no IFNs are approved for treatment of influenza A virus (IAV) infection. This is partially due to the complex effects of IFNs in acute influenza infection. IAV attacks the human respiratory system and causes significant morbidity and mortality globally. During influenza infection, depending on the strain of IAV and the individual host, type I IFNs can have protective antiviral effects or can contribute to immunopathology. In the context of virus infection, the immune system has complicated mechanisms regulating the expression and effects of type I IFN to maximize the antiviral response by both activating and enhancing beneficial innate cell function, while limiting immunopathological responses that lead to exaggerated tissue damage. In this review, we summarize the complicated, but important, role of type I IFNs in influenza infections. This includes both protective and harmful effects of these important cytokines during infection.
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Affiliation(s)
- Wenxin Wu
- Department of Medicine, Pulmonary, Critical Care and Sleep Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA,
| | - Jordan P Metcalf
- Department of Medicine, Pulmonary, Critical Care and Sleep Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.,Department of Microbiology and Immunology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.,Pulmonary Section, Medicine Service, Veterans Affairs Medical Center, Oklahoma City, Oklahoma, USA
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6
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Responsiveness to Influenza Vaccination Correlates with NKG2C-Expression on NK Cells. Vaccines (Basel) 2020; 8:vaccines8020281. [PMID: 32517137 PMCID: PMC7349951 DOI: 10.3390/vaccines8020281] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/24/2020] [Accepted: 06/03/2020] [Indexed: 12/24/2022] Open
Abstract
Influenza vaccination often results in a large percentage of low responders, especially in high-risk groups. As a first line of defense, natural killer (NK) cells play a crucial role in the fight against infections. However, their implication with regard to vaccine responsiveness is insufficiently assessed. Therefore, this study aimed at the validation of essential NK cell features potentially associated with differential vaccine responsiveness with a special focus on NKG2C- and/or CD57-expressing NK cells considered to harbor memory-like functions. To this end, 16 healthy volunteers were vaccinated with an adjuvanted pandemic influenza vaccine. Vaccine responders and low responders were classified according to their hemagglutination inhibition antibody titers. A majority of responders displayed enhanced frequencies of NKG2C-expressing NK cells 7- or 14-days post-vaccination as compared to low responders, whereas the expression of CD57 was not differentially modulated. The NK cell cytotoxic potential was found to be confined to CD56dimCD16+ NKG2C-expressing NK cells in the responders but not in the low responders, which was further confirmed by stochastic neighbor embedding analysis. The presented study is the first of its kind that ascribes CD56dimCD16+ NKG2C-expressing NK cells a crucial role in biasing adaptive immune responses upon influenza vaccination and suggests NKG2C as a potential biomarker in predicting pandemic influenza vaccine responsiveness.
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7
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Abstract
The novel coronavirus pandemic, also known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has placed an immense strain on healthcare systems across the entire world. Consequently, multiple federal and state governments have placed restrictions on hospitals such as limiting "elective surgery" and recommending social or physical distancing. We review the literature on several areas that have been affected including surgical selection, inpatient care, and physician well-being. These areas affecting inpatient paradigms include surgical priority, physical or social distancing, file sharing for online clinical communications, and physician wellness. During this crisis, it is important that orthopaedic departments place an emphasis on personnel safety and slowing the spread of the virus so that the department can still maintain vital functions. Physical distancing and emerging technologies such as inpatient telemedicine and online file sharing applications can enable orthopaedic programs to still function while attempting to protect medical staff and patients from the novel coronavirus spread. This literature review sought to provide evidence-based guidance to orthopaedic departments during an unprecedented time. Orthopaedic surgeons should follow the Centers for Disease Control and Prevention guidelines, wear personal protective equipment (PPE) when appropriate, have teams created using physical distancing, understand the department's policy on elective surgery, and engage in routines which enhance physician wellness.
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8
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The Effects of AHCC®, a Standardized Extract of Cultured Lentinura edodes Mycelia, on Natural Killer and T Cells in Health and Disease: Reviews on Human and Animal Studies. J Immunol Res 2019; 2019:3758576. [PMID: 31930148 PMCID: PMC6942843 DOI: 10.1155/2019/3758576] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 11/20/2019] [Indexed: 12/17/2022] Open
Abstract
Mushrooms have been used for various health conditions for many years by traditional medicines practiced in different regions of the world although the exact effects of mushroom extracts on the immune system are not fully understood. AHCC® is a standardized extract of cultured shiitake or Lentinula edodes mycelia (ECLM) which contains a mixture of nutrients including oligosaccharides, amino acids, and minerals obtained through liquid culture. AHCC® is reported to modulate the numbers and functions of immune cells including natural killer (NK) and T cells which play important roles in host defense, suggesting the possible implication of its supplementation in defending the host against infections and malignancies via modulating the immune system. Here, we review in vivo and in vitro effects of AHCC® on NK and T cells of humans and animals in health and disease, providing a platform for the better understanding of immune-mediated mechanisms and clinical implications of AHCC®.
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9
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Wong J, Layton D, Wheatley AK, Kent SJ. Improving immunological insights into the ferret model of human viral infectious disease. Influenza Other Respir Viruses 2019; 13:535-546. [PMID: 31583825 PMCID: PMC6800307 DOI: 10.1111/irv.12687] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/18/2019] [Accepted: 09/20/2019] [Indexed: 12/14/2022] Open
Abstract
Ferrets are a well‐established model for studying both the pathogenesis and transmission of human respiratory viruses and evaluation of antiviral vaccines. Advanced immunological studies would add substantial value to the ferret models of disease but are hindered by the low number of ferret‐reactive reagents available for flow cytometry and immunohistochemistry. Nevertheless, progress has been made to understand immune responses in the ferret model with a limited set of ferret‐specific reagents and assays. This review examines current immunological insights gained from the ferret model across relevant human respiratory diseases, with a focus on influenza viruses. We highlight key knowledge gaps that need to be bridged to advance the utility of ferrets for immunological studies.
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Affiliation(s)
- Julius Wong
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Vic., Australia
| | - Daniel Layton
- CSIRO Health and Biosecurity, Australian Animal Health Laboratories, Geelong, Vic., Australia
| | - Adam K Wheatley
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Vic., Australia
| | - Stephen J Kent
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Vic., Australia.,Melbourne Sexual Health Centre and Department of Infectious Diseases, Alfred Hospital and Central Clinical School, Monash University, Melbourne, Vic., Australia.,ARC Centre for Excellence in Convergent Bio-Nano Science and Technology, University of Melbourne, Parkville, Vic., Australia
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10
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Rao S, Ghosh D, Asturias EJ, Weinberg A. What can we learn about influenza infection and vaccination from transcriptomics? Hum Vaccin Immunother 2019; 15:2615-2623. [PMID: 31116679 PMCID: PMC6930070 DOI: 10.1080/21645515.2019.1608744] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Transcriptomics studies the set of RNA transcripts produced by the genome using high-throughput sequencing and bioinformatics. This growing field has revolutionized our understanding of host-pathogen interactions, revealing new insights into the host response to influenza infection and vaccination. Studies using transcriptomics have identified a unique immunosignature for influenza discernable from other bacterial and viral pathogens, key transcriptional factors that discriminate early from late, mild versus severe, and symptomatic versus asymptomatic infection. Recent studies evaluating the host response to influenza vaccines have revealed key differences in live versus inactivated influenza vaccines, identified early transcriptional signatures that predict hemagglutinin antibody production following vaccination, increased our understanding of how adjuvants enhance the immune response to influenza vaccine antigens, and demonstrate biologic variability in the response to vaccination due to host factors. These studies demonstrate the potential for influenza transcriptomics to be applied to clinical care, understanding the mechanisms of infection, and informing vaccine development.
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Affiliation(s)
- Suchitra Rao
- Department of Pediatrics (Infectious Diseases, Hospital Medicine, Epidemiology), University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, USA
| | - Debashis Ghosh
- Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, CO, USA
| | - Edwin J Asturias
- Department of Pediatrics (Pediatric Infectious Diseases), University of Colorado School of Medicine and Children's Hospital Colorado and Department of Epidemiology, Center for Global Health, Colorado School of Public Health, Aurora, CO, USA
| | - Adriana Weinberg
- Department of Medicine, Pathology and Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
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11
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Scharenberg M, Vangeti S, Kekäläinen E, Bergman P, Al-Ameri M, Johansson N, Sondén K, Falck-Jones S, Färnert A, Ljunggren HG, Michaëlsson J, Smed-Sörensen A, Marquardt N. Influenza A Virus Infection Induces Hyperresponsiveness in Human Lung Tissue-Resident and Peripheral Blood NK Cells. Front Immunol 2019; 10:1116. [PMID: 31156653 PMCID: PMC6534051 DOI: 10.3389/fimmu.2019.01116] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 05/01/2019] [Indexed: 12/29/2022] Open
Abstract
NK cells in the human lung respond to influenza A virus- (IAV-) infected target cells. However, the detailed functional capacity of human lung and peripheral blood NK cells remains to be determined in IAV and other respiratory viral infections. Here, we investigated the effects of IAV infection on human lung and peripheral blood NK cells in vitro and ex vivo following clinical infection. IAV infection of lung- and peripheral blood-derived mononuclear cells in vitro induced NK cell hyperresponsiveness to K562 target cells, including increased degranulation and cytokine production particularly in the CD56brightCD16- subset of NK cells. Furthermore, lung CD16- NK cells showed increased IAV-mediated but target cell-independent activation compared to CD16+ lung NK cells or total NK cells in peripheral blood. IAV infection rendered peripheral blood NK cells responsive toward the normally NK cell-resistant lung epithelial cell line A549, indicating that NK cell activation during IAV infection could contribute to killing of surrounding non-infected epithelial cells. In vivo, peripheral blood CD56dimCD16+ and CD56brightCD16- NK cells were primed during acute IAV infection, and a small subset of CD16-CD49a+CXCR3+ NK cells could be identified, with CD49a and CXCR3 potentially promoting homing to and tissue-retention in the lung during acute infection. Together, we show that IAV respiratory viral infections prime otherwise hyporesponsive lung NK cells, indicating that both CD16+ and CD16- NK cells including CD16-CD49a+ tissue-resident NK cells could contribute to host immunity but possibly also tissue damage in clinical IAV infection.
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Affiliation(s)
- Marlena Scharenberg
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Sindhu Vangeti
- Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Eliisa Kekäläinen
- Immunobiology Research Program & Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland.,HUSLAB, Division of Clinical Microbiology, Helsinki University Hospital, Helsinki, Finland
| | - Per Bergman
- Thoracic Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Mamdoh Al-Ameri
- Thoracic Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Niclas Johansson
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden.,Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Klara Sondén
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden.,Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Sara Falck-Jones
- Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Anna Färnert
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden.,Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Hans-Gustaf Ljunggren
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Jakob Michaëlsson
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Anna Smed-Sörensen
- Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Nicole Marquardt
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
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12
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Littauer EQ, Skountzou I. Hormonal Regulation of Physiology, Innate Immunity and Antibody Response to H1N1 Influenza Virus Infection During Pregnancy. Front Immunol 2018; 9:2455. [PMID: 30420854 PMCID: PMC6215819 DOI: 10.3389/fimmu.2018.02455] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 10/04/2018] [Indexed: 12/13/2022] Open
Abstract
In 2009, the H1N1 swine flu pandemic highlighted the vulnerability of pregnant women to influenza viral infection. Pregnant women infected with influenza A virus were at increased risk of hospitalization and severe acute respiratory distress syndrome (ARDS), which is associated with high mortality, while their newborns had an increased risk of pre-term birth or low birth weight. Pregnant women have a unique immunological profile modulated by the sex hormones required to maintain pregnancy, namely progesterone and estrogens. The role of these hormones in coordinating maternal immunotolerance in uterine tissue and cellular subsets has been well researched; however, these hormones have wide-ranging effects outside the uterus in modulating the immune response to disease. In this review, we compile research findings in the clinic and in animal models that elaborate on the unique features of H1N1 influenza A viral pathogenesis during pregnancy, the crosstalk between innate immune signaling and hormonal regulation during pregnancy, and the role of pregnancy hormones in modulating cellular responses to influenza A viral infection at mid-gestation. We highlight the ways in which lung architecture and function is stressed by pregnancy, increasing baseline inflammation prior to infection. We demonstrate that infection disrupts progesterone production and upregulates inflammatory mediators, such as cyclooxygenase-2 (COX-2) and prostaglandins, resulting in pre-term labor and spontaneous abortions. Lastly, we profile the ways in which pregnancy alters innate and adaptive cellular immune responses to H1N1 influenza viral infection, and the ways in which these protect fetal development at the expense of effective long-term immune memory. Thus, we highlight advancements in the field of reproductive immunology in response to viral infection and illustrate how that knowledge might be used to develop more effective post-infection therapies and vaccination strategies.
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Affiliation(s)
- Elizabeth Q Littauer
- Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States.,Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA, United States
| | - Ioanna Skountzou
- Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States.,Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA, United States
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13
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Korenkov DA, Laurie KL, Reading PC, Carolan LA, Chan KF, Isakova-Sivak II, Smolonogina TA, Subbarao K, Barr IG, Villanueva J, Shcherbik S, Bousse T, Rudenko LG. Safety, immunogenicity and protection of A(H3N2) live attenuated influenza vaccines containing wild-type nucleoprotein in a ferret model. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2018; 64:95-104. [PMID: 29929009 PMCID: PMC6330673 DOI: 10.1016/j.meegid.2018.06.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/14/2018] [Accepted: 06/16/2018] [Indexed: 11/21/2022]
Abstract
Live attenuated influenza vaccines (LAIVs) are promising tools for the induction of broad protection from influenza due to their ability to stimulate cross-reactive T cells against influenza pathogens. One of the major targets for cytotoxic T-cell immunity is viral nucleoprotein (NP), which is relatively conserved among antigenically distant influenza viruses. Nevertheless, a diversity of epitope composition has been found in the NP protein of different lineages of influenza A viruses. The H2N2 master donor virus which is currently used as a backbone for the LAIV and donor of the six genomic segments encoding the internal proteins, A/Leningrad/134/17/57 (MDV Len/17), was isolated 60 years ago. As such, NP-specific T-cell immunity induced upon vaccination with classical LAIVs with a 6:2 genome composition containing this older NP might be suboptimal against currently circulating influenza viruses. In this study, a panel of H3N2 LAIV candidates with wild-type NP genes derived from circulating viruses were generated by reverse genetics (5:3 genome composition). These viruses displayed the cold adaptation and temperature sensitivity phenotypes of MDV Len/17 in vitro. LAIVs with both 6:2 and 5:3 genome compositions were attenuated and replicated to a similar extent in the upper respiratory tract of ferrets. LAIVs were immunogenic as high neutralizing and hemagglutination inhibition serum antibody titers were detected 21 days after infection. All vaccinated animals were protected against infection with heterologous H3N2 influenza A viruses. Thus, LAIV with a 5:3 genome composition is safe, immunogenic and can induce cross-protective immunity.
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MESH Headings
- Animal Diseases/immunology
- Animal Diseases/prevention & control
- Animal Diseases/virology
- Animals
- Antibodies, Neutralizing/blood
- Antibodies, Neutralizing/immunology
- Antibodies, Viral/blood
- Antibodies, Viral/immunology
- Disease Models, Animal
- Female
- Ferrets
- Genome, Viral
- Immunogenicity, Vaccine
- Influenza A Virus, H3N2 Subtype/genetics
- Influenza A Virus, H3N2 Subtype/immunology
- Influenza Vaccines/adverse effects
- Influenza Vaccines/genetics
- Influenza Vaccines/immunology
- Male
- Neutralization Tests
- Nucleoproteins/genetics
- Nucleoproteins/immunology
- Orthomyxoviridae Infections/veterinary
- Vaccination
- Vaccines, Attenuated/adverse effects
- Vaccines, Attenuated/genetics
- Vaccines, Attenuated/immunology
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Affiliation(s)
- Daniil A Korenkov
- Department of Virology, Institute of Experimental Medicine, 12, acad. Pavlova street, Saint Petersburg, Russia.
| | - Karen L Laurie
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory at The Peter Doherty Institute for Infection & Immunity, Melbourne, Australia
| | - Patrick C Reading
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory at The Peter Doherty Institute for Infection & Immunity, Melbourne, Australia
| | - Louise A Carolan
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory at The Peter Doherty Institute for Infection & Immunity, Melbourne, Australia
| | - Kok Fei Chan
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory at The Peter Doherty Institute for Infection & Immunity, Melbourne, Australia
| | - Irina I Isakova-Sivak
- Department of Virology, Institute of Experimental Medicine, 12, acad. Pavlova street, Saint Petersburg, Russia
| | - Tatiana A Smolonogina
- Department of Virology, Institute of Experimental Medicine, 12, acad. Pavlova street, Saint Petersburg, Russia
| | - Kanta Subbarao
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory at The Peter Doherty Institute for Infection & Immunity, Melbourne, Australia
| | - Ian G Barr
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory at The Peter Doherty Institute for Infection & Immunity, Melbourne, Australia
| | | | | | - Tatiana Bousse
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Larisa G Rudenko
- Department of Virology, Institute of Experimental Medicine, 12, acad. Pavlova street, Saint Petersburg, Russia
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14
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Kotomina T, Korenkov D, Matyushenko V, Prokopenko P, Rudenko L, Isakova-Sivak I. Live attenuated influenza vaccine viral vector induces functional cytotoxic T-cell immune response against foreign CD8+ T-cell epitopes inserted into NA and NS1 genes using the 2A self-cleavage site. Hum Vaccin Immunother 2018; 14:2964-2970. [PMID: 30024831 DOI: 10.1080/21645515.2018.1502529] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The development of viral vector vaccines against various pathogens for which conventional vaccination approaches are not applicable has been a priority for a number of years. One promising approach is the insertion of immunodominant conservative cytotoxic T-cell (CTL) epitopes into the genome of a viral vector, which then delivers these epitopes to target cells, inducing immunity. Many different viruses have been assessed as viral vectors for CTL-based vaccines, but only a few of them are clinically relevant, mainly because of safety issues and limited knowledge about their performance in humans. In this regard, the use of licensed cold-adapted live attenuated influenza vaccine (LAIV) viruses as a vector delivery system has clear advantages for CTL-based vector vaccines against other respiratory pathogens: LAIV is known to induce all arms of the adaptive immune system and is administered via nasal spray, and its production process is relatively easy and inexpensive. Here we present the first results of the use of an LAIV backbone for designing a CTL epitope-based vaccine against respiratory syncytial virus (RSV). The chimeric LAIV-RSV vaccine candidates were attenuated in mice and induced strong, fully functional CTL immunity in this animal model.
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Affiliation(s)
- Tatiana Kotomina
- a Department of Virology , Institute of Experimental Medicine , Saint Petersburg , Russia
| | - Daniil Korenkov
- a Department of Virology , Institute of Experimental Medicine , Saint Petersburg , Russia
| | - Victoria Matyushenko
- a Department of Virology , Institute of Experimental Medicine , Saint Petersburg , Russia
| | - Polina Prokopenko
- a Department of Virology , Institute of Experimental Medicine , Saint Petersburg , Russia
| | - Larisa Rudenko
- a Department of Virology , Institute of Experimental Medicine , Saint Petersburg , Russia
| | - Irina Isakova-Sivak
- a Department of Virology , Institute of Experimental Medicine , Saint Petersburg , Russia
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15
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Veerapandian R, Snyder JD, Samarasinghe AE. Influenza in Asthmatics: For Better or for Worse? Front Immunol 2018; 9:1843. [PMID: 30147697 PMCID: PMC6095982 DOI: 10.3389/fimmu.2018.01843] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 07/26/2018] [Indexed: 12/17/2022] Open
Abstract
Asthma and influenza are two pathologic conditions of the respiratory tract that affect millions worldwide. Influenza virus of the 2009 pandemic was highly transmissible and caused severe respiratory disease in young and middle-aged individuals. Asthma was discovered to be an underlying co-morbidity that led to hospitalizations during this influenza pandemic albeit with less severe outcomes. However, animal studies that investigated the relationship between allergic inflammation and pandemic (p)H1N1 infection, showed that while characteristics of allergic airways disease were exacerbated by this virus, governing immune responses that cause exacerbations may actually protect the host from severe outcomes associated with influenza. To better understand the relationship between asthma and severe influenza during the last pandemic, we conducted a systematic literature review of reports on hospitalized patients with asthma as a co-morbid condition during the pH1N1 season. Herein, we report that numerous other underlying conditions, such as cardiovascular, neurologic, and metabolic diseases may have been underplayed as major drivers of severe influenza during the 2009 pandemic. This review synopses, (1) asthma and influenza independently, (2) epidemiologic data surrounding asthma during the 2009 influenza pandemic, and (3) recent advances in our understanding of allergic host–pathogen interactions in the context of allergic airways disease and influenza in mouse models. Our goal is to showcase possible immunological benefits of allergic airways inflammation as countermeasures for influenza virus infections as a learning tool to discover novel pathways that can enhance our ability to hinder influenza virus replication and host pathology induced thereof.
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Affiliation(s)
- Raja Veerapandian
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States.,Children's Foundation Research Institute, University of Tennessee Health Science Center, Memphis, TN, United States
| | - John D Snyder
- Children's Foundation Research Institute, University of Tennessee Health Science Center, Memphis, TN, United States.,College of Graduate Health Sciences, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Amali E Samarasinghe
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States.,Children's Foundation Research Institute, University of Tennessee Health Science Center, Memphis, TN, United States
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16
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Wein AN, Dunbar PR, McMaster SR, Li ZRT, Denning TL, Kohlmeier JE. IL-36γ Protects against Severe Influenza Infection by Promoting Lung Alveolar Macrophage Survival and Limiting Viral Replication. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2018; 201:573-582. [PMID: 29848754 PMCID: PMC6089355 DOI: 10.4049/jimmunol.1701796] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 05/08/2018] [Indexed: 12/13/2022]
Abstract
Although influenza virus infection remains a concerning disease for public health, the roles of individual cytokines during the immune response to influenza infection are not fully understood. We have identified IL-36γ as a key mediator of immune protection during both high- and low-pathogenesis influenza infection. Il36g mRNA is upregulated in the lung following influenza infection, and mice lacking IL-36γ have greatly increased morbidity and mortality upon infection with either H1N1 or H3N2 influenza. The increased severity of influenza infection in IL-36γ-knockout (KO) mice is associated with increased viral titers, higher levels of proinflammatory cytokines early in infection, and more diffuse pathologic conditions late in the disease course. Interestingly, the increased severity of disease in IL-36γ-KO mice correlates with a rapid loss of alveolar macrophages following infection. We find that the alveolar macrophages from naive IL-36γ-KO mice have higher expression of M2-like surface markers compared with wild-type (WT) mice and show increased apoptosis within 24 h of infection. Finally, transfer of WT alveolar macrophages to IL-36γ-KO mice restores protection against lethal influenza challenge to levels observed in WT mice. Together, these data identify a critical role for IL-36γ in immunity against influenza virus and demonstrate the importance of IL-36γ signaling for alveolar macrophage survival during infection.
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Affiliation(s)
- Alexander N Wein
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322; and
| | - Paul R Dunbar
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322; and
| | - Sean R McMaster
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322; and
| | - Zheng-Rong Tiger Li
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322; and
| | - Timothy L Denning
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303
| | - Jacob E Kohlmeier
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322; and
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17
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Lu J, Duan X, Zhao W, Wang J, Wang H, Zhou K, Fang M. Aged Mice are More Resistant to Influenza Virus Infection due to Reduced Inflammation and Lung Pathology. Aging Dis 2018; 9:358-373. [PMID: 29896425 PMCID: PMC5988592 DOI: 10.14336/ad.2017.0701] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 07/01/2017] [Indexed: 12/24/2022] Open
Abstract
Immune responses are a double-edged sword. Effective and appropriate immune responses capable of controlling viral infection while also largely preserving tissue integrity, are critical for host survival. Too strong immune responses might result in immune pathology, while too weak immune responses might cause viral persistence. Physiologic ageing is accompanied with a decline in the normal functioning of the immune system, which is termed as "immunosenescence". We show that aged mice (16-19 months old) are more resistant to influenza A virus (IAV) infection than the young mice. Strong immune responses in the young mice after IAV infection result in faster clearance of virus, but also cause severe lung injury and higher mortality rate. While in the aged mice, the delayed and milder immune responses contribute to reduced pulmonary damage, and are still capable to clear the infection even with a slower kinetics, displaying a more resistant phenotype during IAV infection. Hence, our work demonstrates that moderate immune responses as a decline with ageing in the aged mice balance the immune pathology and viral clearance, might be beneficial for the host during certain circumstances. Our results provide important insight to our basic knowledge of immunosenescence and immune defenses to invading pathogens. Further, our results indicate that age factors should be considered when investigating the vaccination and therapeutic strategies for severe IAV infection.
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Affiliation(s)
- Jiao Lu
- 1CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,2University of Chinese Academy of Sciences, Beijing, China
| | - Xuefeng Duan
- 1CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenming Zhao
- 1CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jing Wang
- 1CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,2University of Chinese Academy of Sciences, Beijing, China
| | - Haoyu Wang
- 3Institute of Health Sciences, Anhui University, Hefei, China.,1CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Kai Zhou
- 1CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Min Fang
- 1CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,4International College, University of Chinese Academy of Sciences, Beijing, China
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18
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Stegemann-Koniszewski S, Behrens S, Boehme JD, Hochnadel I, Riese P, Guzmán CA, Kröger A, Schreiber J, Gunzer M, Bruder D. Respiratory Influenza A Virus Infection Triggers Local and Systemic Natural Killer Cell Activation via Toll-Like Receptor 7. Front Immunol 2018; 9:245. [PMID: 29497422 PMCID: PMC5819576 DOI: 10.3389/fimmu.2018.00245] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/29/2018] [Indexed: 12/17/2022] Open
Abstract
The innate immune system senses influenza A virus (IAV) through different pathogen-recognition receptors including Toll-like receptor 7 (TLR7). Downstream of viral recognition natural killer (NK) cells are activated as part of the anti-IAV immune response. Despite the known decisive role of TLR7 for NK cell activation by therapeutic immunostimulatory RNAs, the contribution of TLR7 to the NK cell response following IAV infection has not been addressed. We have analyzed lung cytokine responses as well as the activation, interferon (IFN)-γ production, and cytotoxicity of lung and splenic NK cells following sublethal respiratory IAV infection in wild-type and TLR7ko mice. Early airway IFN-γ levels as well as the induction of lung NK cell CD69 expression and IFN-γ production in response to IAV infection were significantly attenuated in TLR7-deficient hosts. Strikingly, respiratory IAV infection also primed splenic NK cells for IFN-γ production, degranulation, and target cell lysis, all of which were fully dependent on TLR7. At the same time, lung type I IFN levels were significantly reduced in TLR7ko mice early following IAV infection, displaying a potential upstream mechanism of the attenuated NK cell activation observed. Taken together, our data clearly demonstrate a specific role for TLR7 signaling in local and systemic NK cell activation following respiratory IAV infection despite the presence of redundant innate IAV-recognition pathways.
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Affiliation(s)
- Sabine Stegemann-Koniszewski
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Infection Immunology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto von-Guericke University, Magdeburg, Germany.,Experimental Pneumology, University Hospital of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Sarah Behrens
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Julia D Boehme
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Infection Immunology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto von-Guericke University, Magdeburg, Germany
| | - Inga Hochnadel
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Peggy Riese
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Carlos A Guzmán
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Andrea Kröger
- Molecular Microbiology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Innate Immunity and Infection, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Jens Schreiber
- Experimental Pneumology, University Hospital of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Matthias Gunzer
- Institute for Experimental Immunology and Imaging, University Hospital, University of Duisburg-Essen, Essen, Germany
| | - Dunja Bruder
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Infection Immunology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto von-Guericke University, Magdeburg, Germany
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19
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Choi JG, Jin YH, Lee H, Oh TW, Yim NH, Cho WK, Ma JY. Protective Effect of Panax notoginseng Root Water Extract against Influenza A Virus Infection by Enhancing Antiviral Interferon-Mediated Immune Responses and Natural Killer Cell Activity. Front Immunol 2017; 8:1542. [PMID: 29181006 PMCID: PMC5693858 DOI: 10.3389/fimmu.2017.01542] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 10/30/2017] [Indexed: 01/27/2023] Open
Abstract
Influenza is an acute respiratory illness caused by the influenza A virus, which causes economic losses and social disruption mainly by increasing hospitalization and mortality rates among the elderly and people with chronic diseases. Influenza vaccines are the most effective means of preventing seasonal influenza, but can be completely ineffective if there is an antigenic mismatch between the seasonal vaccine virus and the virus circulating in the community. In addition, influenza viruses resistant to antiviral drugs are emerging worldwide. Thus, there is an urgent need to develop new vaccines and antiviral drugs against these viruses. In this study, we conducted in vitro and in vivo analyses of the antiviral effect of Panax notoginseng root (PNR), which is used as an herbal medicine and nutritional supplement in Korea and China. We confirmed that PNR significantly prevented influenza virus infection in a concentration-dependent manner in mouse macrophages. In addition, PNR pretreatment inhibited viral protein (PB1, PB2, HA, NA, M1, PA, M2, and NP) and viral mRNA (NS1, HA, PB2, PA, NP, M1, and M2) expression. PNR pretreatment also increased the secretion of pro-inflammatory cytokines [tumor necrosis factor alpha and interleukin 6] and interferon (IFN)-beta and the phosphorylation of type-I IFN-related proteins (TANK-binding kinase 1, STAT1, and IRF3) in vitro. In mice exposed to the influenza A H1N1 virus, PNR treatment decreased mortality by 90% and prevented weight loss (by approximately 10%) compared with the findings in untreated animals. In addition, splenocytes from PNR-administered mice displayed significantly enhanced natural killer (NK) cell activity against YAC-1 cells. Taking these findings together, PNR stimulates an antiviral response in murine macrophages and mice that protects against viral infection, which may be attributable to its ability to stimulate NK cell activity. Further investigations are needed to reveal the molecular mechanisms underlying the protective effects of PNR and its components against influenza virus A infection.
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Affiliation(s)
- Jang-Gi Choi
- Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu, South Korea
| | - Young-Hee Jin
- Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu, South Korea
| | - Heeeun Lee
- Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu, South Korea
| | - Tae Woo Oh
- Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu, South Korea
| | - Nam-Hui Yim
- Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu, South Korea
| | - Won-Kyung Cho
- Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu, South Korea
| | - Jin Yeul Ma
- Korean Medicine (KM) Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu, South Korea
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20
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Marathe BM, Mostafa HH, Vogel P, Pascua PNQ, Jones JC, Russell CJ, Webby RJ, Govorkova EA. A pharmacologically immunosuppressed mouse model for assessing influenza B virus pathogenicity and oseltamivir treatment. Antiviral Res 2017; 148:20-31. [PMID: 29100887 DOI: 10.1016/j.antiviral.2017.10.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/26/2017] [Accepted: 10/30/2017] [Indexed: 01/19/2023]
Abstract
Immunocompromised patients are highly susceptible to influenza virus infections. Although neuraminidase inhibitor (NAI) therapy has proved effective in these patients, the treatment regimens require optimization, which can be partly addressed via animal models. Here, we describe a pharmacologically immunosuppressed mouse model for studying the pathogenesis of influenza B viruses and evaluating the efficacy of antiviral treatment. We modeled clinical regimens for dexamethasone and cyclophosphamide to immunosuppress BALB/c mice that were then inoculated with B/Phuket/3073/2013 (Yamagata lineage) or B/Brisbane/60/2008 (BR/08, Victoria lineage) virus. Although both viruses caused morbidity and mortality in immunosuppressed mice, BR/08 was more virulent, consistently inducing greater morbidity and 100% lethality in mice inoculated with at least 103 TCID50/mouse. The replication of both viruses was prolonged in the lungs of immunosuppressed mice, but the extent of pulmonary inflammation in these mice was markedly less than that in immunocompetent animals. Most of the examined cytokines, including IFN-γ, IL-1β, and RANTES, were significantly decreased in the lungs of immunosuppressed mice, as compared to immunocompetent animals, until at least 10 days post-infection. Treatment with the NAI oseltamivir for 8 or 16 days increased the mean survival time and reduced virus spread in the lungs of immunosuppressed mice challenged with a lethal dose of BR/08 but did not completely provide protection or decrease the virus titers. Our data suggests that the synergy of the viral load and aberrant immune responses is a key contributor to the severity of infection, as well as the limited efficacy of oseltamivir, which in immunosuppressed mice curtails virus release without clearing infected cells.
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Affiliation(s)
- Bindumadhav M Marathe
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Heba H Mostafa
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Peter Vogel
- Veterinary Pathology Core, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Philippe Noriel Q Pascua
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Jeremy C Jones
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Charles J Russell
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Richard J Webby
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Elena A Govorkova
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
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21
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He W, Chen CJ, Mullarkey CE, Hamilton JR, Wong CK, Leon PE, Uccellini MB, Chromikova V, Henry C, Hoffman KW, Lim JK, Wilson PC, Miller MS, Krammer F, Palese P, Tan GS. Alveolar macrophages are critical for broadly-reactive antibody-mediated protection against influenza A virus in mice. Nat Commun 2017; 8:846. [PMID: 29018261 PMCID: PMC5635038 DOI: 10.1038/s41467-017-00928-3] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 08/07/2017] [Indexed: 12/23/2022] Open
Abstract
The aim of candidate universal influenza vaccines is to provide broad protection against influenza A and B viruses. Studies have demonstrated that broadly reactive antibodies require Fc-Fc gamma receptor interactions for optimal protection; however, the innate effector cells responsible for mediating this protection remain largely unknown. Here, we examine the roles of alveolar macrophages, natural killer cells, and neutrophils in antibody-mediated protection. We demonstrate that alveolar macrophages play a dominant role in conferring protection provided by both broadly neutralizing and non-neutralizing antibodies in mice. Our data also reveal the potential mechanisms by which alveolar macrophages mediate protection in vivo, namely antibody-induced inflammation and antibody-dependent cellular phagocytosis. This study highlights the importance of innate effector cells in establishing a broad-spectrum antiviral state, as well as providing a better understanding of how multiple arms of the immune system cooperate to achieve an optimal antiviral response following influenza virus infection or immunization.Broadly reactive antibodies that recognize influenza A virus HA can be protective, but the mechanism is not completely understood. Here, He et al. show that the inflammatory response and phagocytosis mediated by the interaction between protective antibodies and macrophages are essential for protection.
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Affiliation(s)
- Wenqian He
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Chi-Jene Chen
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Caitlin E Mullarkey
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Jennifer R Hamilton
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Christine K Wong
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Paul E Leon
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Melissa B Uccellini
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Veronika Chromikova
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Carole Henry
- Department of Medicine, Section of Rheumatology, The Knapp Center for Lupus and Immunology Research, The Committee on Immunology, The University of Chicago, Chicago, IL, 60637, USA
| | - Kevin W Hoffman
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Jean K Lim
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Patrick C Wilson
- Department of Medicine, Section of Rheumatology, The Knapp Center for Lupus and Immunology Research, The Committee on Immunology, The University of Chicago, Chicago, IL, 60637, USA
| | - Matthew S Miller
- Department of Biochemistry and Biomedical Sciences, Institute of Infectious Diseases Research, McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada, L8S 4K1
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Peter Palese
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Gene S Tan
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA.
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22
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Boe DM, Boule LA, Kovacs EJ. Innate immune responses in the ageing lung. Clin Exp Immunol 2016; 187:16-25. [PMID: 27711979 DOI: 10.1111/cei.12881] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2016] [Indexed: 12/19/2022] Open
Abstract
The world is undergoing an unprecedented shift in demographics, with the number of individuals over the age of 60 years projected to reach 2 billion or more by 2050, representing 22% of the global population. Elderly people are at a higher risk for chronic disease and more susceptible to infection, due in part to age-related dysfunction of the immune system resulting from low-grade chronic inflammation known as 'inflamm-ageing'. The innate immune system of older individuals exhibits a diminished ability to respond to microbial threats and clear infections, resulting in a greater occurrence of many infectious diseases in elderly people. In particular, the incidence of and mortality from lung infections increase sharply with age, with such infections often leading to worse outcomes, prolonged hospital stays and life-threatening complications, such as sepsis or acute respiratory distress syndrome. In this review, we highlight research on bacterial pneumonias and pulmonary viral infections and discuss age-related changes in innate immunity that contribute to the higher rate of these infections in older populations. By understanding more clearly the innate immune defects in elderly individuals, we can design age-specific therapies to address lung infections in such a vulnerable population.
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Affiliation(s)
- D M Boe
- Division of GI, Endocrine and Tumor Surgery, Department of Surgery, Mucosal Inflammation Program, University of Colorado Denver Anschutz Medical Campus, Aurora, CO, USA
| | - L A Boule
- Division of GI, Endocrine and Tumor Surgery, Department of Surgery, Mucosal Inflammation Program, University of Colorado Denver Anschutz Medical Campus, Aurora, CO, USA
| | - E J Kovacs
- Division of GI, Endocrine and Tumor Surgery, Department of Surgery, Mucosal Inflammation Program, University of Colorado Denver Anschutz Medical Campus, Aurora, CO, USA
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Non-invasive Imaging of Sendai Virus Infection in Pharmacologically Immunocompromised Mice: NK and T Cells, but not Neutrophils, Promote Viral Clearance after Therapy with Cyclophosphamide and Dexamethasone. PLoS Pathog 2016; 12:e1005875. [PMID: 27589232 PMCID: PMC5010285 DOI: 10.1371/journal.ppat.1005875] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 08/17/2016] [Indexed: 11/19/2022] Open
Abstract
In immunocompromised patients, parainfluenza virus (PIV) infections have an increased potential to spread to the lower respiratory tract (LRT), resulting in increased morbidity and mortality. Understanding the immunologic defects that facilitate viral spread to the LRT will help in developing better management protocols. In this study, we immunosuppressed mice with dexamethasone and/or cyclophosphamide then monitored the spread of viral infection into the LRT by using a noninvasive bioluminescence imaging system and a reporter Sendai virus (murine PIV type 1). Our results show that immunosuppression led to delayed viral clearance and increased viral loads in the lungs. After cessation of cyclophosphamide treatment, viral clearance occurred before the generation of Sendai-specific antibody responses and coincided with rebounds in neutrophils, T lymphocytes, and natural killer (NK) cells. Neutrophil suppression using anti-Ly6G antibody had no effect on infection clearance, NK-cell suppression using anti-NK antibody delayed clearance, and T-cell suppression using anti-CD3 antibody resulted in no clearance (chronic infection). Therapeutic use of hematopoietic growth factors G-CSF and GM-CSF had no effect on clearance of infection. In contrast, treatment with Sendai virus—specific polysera or a monoclonal antibody limited viral spread into the lungs and accelerated clearance. Overall, noninvasive bioluminescence was shown to be a useful tool to study respiratory viral progression, revealing roles for NK and T cells, but not neutrophils, in Sendai virus clearance after treatment with dexamethasone and cyclophosphamide. Virus-specific antibodies appear to have therapeutic potential. Parainfluenza viruses (PIV) are major respiratory pathogens that infect almost all children before the age of 5. Infection is particularly severe and life threatening in immunocompromised patients. Although infections among immunocompromised patients are common, there are currently no effective therapeutic or preventive measures. Here, we studied the progression of PIV infection in living, immunocompromised mice by non-invasive bioluminescence imaging. We also tested the outcome of treating infected, immunocompromised mice with various intervention approaches designed to target the virus by specific antibodies or modulating the host’s immune system using drugs that increase neutrophils or B- and T-cells broadly. Bioluminescence imaging was demonstrated to quantify respiratory infection with greater precision, less variability, and fewer animals than classic techniques that require euthanizing groups of animals at defined time points. Non-invasive imaging of infection in immunocompromised hosts is also shown to be well suited to track sustained infections and develop novel preventive and therapeutic strategies.
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Zhou K, Wang J, Li A, Zhao W, Wang D, Zhang W, Yan J, Gao GF, Liu W, Fang M. Swift and Strong NK Cell Responses Protect 129 Mice against High-Dose Influenza Virus Infection. THE JOURNAL OF IMMUNOLOGY 2016; 196:1842-54. [DOI: 10.4049/jimmunol.1501486] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 12/15/2015] [Indexed: 11/19/2022]
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Simhadri VR, Dimitrova M, Mariano JL, Zenarruzabeitia O, Zhong W, Ozawa T, Muraguchi A, Kishi H, Eichelberger MC, Borrego F. A Human Anti-M2 Antibody Mediates Antibody-Dependent Cell-Mediated Cytotoxicity (ADCC) and Cytokine Secretion by Resting and Cytokine-Preactivated Natural Killer (NK) Cells. PLoS One 2015; 10:e0124677. [PMID: 25915748 PMCID: PMC4411161 DOI: 10.1371/journal.pone.0124677] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 03/16/2015] [Indexed: 11/19/2022] Open
Abstract
The highly conserved matrix protein 2 (M2) is a good candidate for the development of a broadly protective influenza vaccine that induces long-lasting immunity. In animal models, natural killer (NK) cells have been proposed to play an important role in the protection provided by M2-based vaccines through a mechanism of antibody-dependent cell-mediated cytotoxicity (ADCC). We investigated the ability of the human anti-M2 Ab1-10 monoclonal antibody (mAb) to activate human NK cells. They mediated ADCC against M2-expressing cells in the presence of Ab1-10 mAb. Furthermore, NK cell pro-inflammatory cytokine and chemokine secretion is also enhanced when Ab1-10 mAb is present. We also generated cytokine-preactivated NK cells and showed that they still displayed increased effector functions in the presence of Ab1-10 mAb. Thus, our study has demonstrated that human resting and cytokine-preactivated NK cells may have a very important role in the protection provided by anti-M2 Abs.
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Affiliation(s)
- Venkateswara R. Simhadri
- Division of Biotechnology Review and Research-I, Office of Biotechnology Products Review and Research, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, United States of America
- * E-mail: (VS); (FB)
| | - Milena Dimitrova
- Division of Biotechnology Review and Research-I, Office of Biotechnology Products Review and Research, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, United States of America
| | - John L. Mariano
- Division of Biotechnology Review and Research-I, Office of Biotechnology Products Review and Research, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, United States of America
| | - Olatz Zenarruzabeitia
- Immunopathology Group, BioCruces Health Research Institute, Barakaldo, Basque Country, Spain
- Cell Therapy and Stem Cell Group, Basque Center for Transfusion and Human Tissues, Galdakao, Basque Country, Spain
| | - Weimin Zhong
- Influenza Division, National Center for Immunization and Respiratory Diseases, Center for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Tatsuhiko Ozawa
- Department of Immunology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama Prefecture, Japan
| | - Atsushi Muraguchi
- Department of Immunology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama Prefecture, Japan
| | - Hiroyuki Kishi
- Department of Immunology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama Prefecture, Japan
| | - Maryna C. Eichelberger
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, United States of America
| | - Francisco Borrego
- Division of Biotechnology Review and Research-I, Office of Biotechnology Products Review and Research, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, United States of America
- Immunopathology Group, BioCruces Health Research Institute, Barakaldo, Basque Country, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Basque Country, Spain
- * E-mail: (VS); (FB)
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Swine Influenza Virus PA and Neuraminidase Gene Reassortment into Human H1N1 Influenza Virus Is Associated with an Altered Pathogenic Phenotype Linked to Increased MIP-2 Expression. J Virol 2015; 89:5651-67. [PMID: 25762737 DOI: 10.1128/jvi.00087-15] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 03/04/2015] [Indexed: 01/11/2023] Open
Abstract
UNLABELLED Swine are susceptible to infection by both avian and human influenza viruses, and this feature is thought to contribute to novel reassortant influenza viruses. In this study, the influenza virus reassortment rate in swine and human cells was determined. Coinfection of swine cells with 2009 pandemic H1N1 virus (huH1N1) and an endemic swine H1N2 (A/swine/Illinois/02860/09) virus (swH1N2) resulted in a 23% reassortment rate that was independent of α2,3- or α2,6-sialic acid distribution on the cells. The reassortants had altered pathogenic phenotypes linked to introduction of the swine virus PA and neuraminidase (NA) into huH1N1. In mice, the huH1N1 PA and NA mediated increased MIP-2 expression early postinfection, resulting in substantial pulmonary neutrophilia with enhanced lung pathology and disease. The findings support the notion that swine are a mixing vessel for influenza virus reassortants independent of sialic acid distribution. These results show the potential for continued reassortment of the 2009 pandemic H1N1 virus with endemic swine viruses and for reassortants to have increased pathogenicity linked to the swine virus NA and PA genes which are associated with increased pulmonary neutrophil trafficking that is related to MIP-2 expression. IMPORTANCE Influenza A viruses can change rapidly via reassortment to create a novel virus, and reassortment can result in possible pandemics. Reassortments among subtypes from avian and human viruses led to the 1957 (H2N2 subtype) and 1968 (H3N2 subtype) human influenza pandemics. Recent analyses of circulating isolates have shown that multiple genes can be recombined from human, avian, and swine influenza viruses, leading to triple reassortants. Understanding the factors that can affect influenza A virus reassortment is needed for the establishment of disease intervention strategies that may reduce or preclude pandemics. The findings from this study show that swine cells provide a mixing vessel for influenza virus reassortment independent of differential sialic acid distribution. The findings also establish that circulating neuraminidase (NA) and PA genes could alter the pathogenic phenotype of the pandemic H1N1 virus, resulting in enhanced disease. The identification of such factors provides a framework for pandemic modeling and surveillance.
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