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Díaz FE, McGill JL. Modeling Human Respiratory Syncytial Virus (RSV) Infection: Recent Contributions and Future Directions Using the Calf Model of Bovine RSV Disease. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1180-1186. [PMID: 37782855 PMCID: PMC10558079 DOI: 10.4049/jimmunol.2300260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 05/24/2023] [Indexed: 10/04/2023]
Abstract
The human orthopneumovirus (human respiratory syncytial virus [RSV]) is a leading cause of respiratory disease in children worldwide and a significant cause of infant mortality in low- and middle-income countries. The natural immune response to the virus has a preponderant role in disease progression, with a rapid neutrophil infiltration and dysbalanced T cell response in the lungs associated with severe disease in infants. The development of preventive interventions against human RSV has been difficult partly due to the need to use animal models that only partially recapitulate the immune response as well as the disease progression seen in human infants. In this brief review, we discuss the contributions of the calf model of RSV infection to understanding immunity to RSV and in developing vaccine and drug candidates, focusing on recent research areas. We propose that the bovine model of RSV infection is a valuable alternative for assessing the translational potential of interventions aimed at the human population.
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Affiliation(s)
- Fabián E. Díaz
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA, United States
| | - Jodi L. McGill
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA, United States
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2
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Kachikis AB, Cho H, Englund JA. Respiratory Syncytial Virus-An Update for Prenatal and Primary Health Providers. Obstet Gynecol Clin North Am 2023; 50:421-437. [PMID: 37149320 DOI: 10.1016/j.ogc.2023.02.011] [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] [Indexed: 04/08/2023]
Abstract
Respiratory syncytial virus (RSV) infection is a significant cause of morbidity and mortality among infants aged younger than 1 year, adults aged 65 years or older, and immunocompromised persons. Limited data exist on RSV infection in pregnancy and further research is needed. Strides are being made to develop vaccines, including vaccines for maternal immunization, as well as monoclonal antibodies for disease prevention.
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Affiliation(s)
- Alisa B Kachikis
- Department of Obstetrics & Gynecology, University of Washington, 1959 Northeast Pacific Street, Box 356460, Seattle, WA 98195, USA.
| | - Hye Cho
- SUNY Upstate Medical University, Syracuse, NY, USA
| | - Janet A Englund
- Department of Pediatrics, Seattle Children's Hospital Pediatric Infectious Diseases, Seattle Children's Hospital Research Institute, University of Washington, Seattle, WA, USA
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3
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Alkubaisi NA, Aziz IM, Alsaleh AN, Alhetheel AF, Almajhdi FN. Molecular Profiling of Inflammatory Mediators in Human Respiratory Syncytial Virus and Human Bocavirus Infection. Genes (Basel) 2023; 14:genes14051101. [PMID: 37239461 DOI: 10.3390/genes14051101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/13/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023] Open
Abstract
Infections due to human respiratory syncytial virus (HRSV) and human bocavirus (HBoV) can mediate the release of several pro-inflammatory cytokines such as IL-6, IL-8, and TNF-α, which are usually associated with disease severity in children. In this study, the change in the expression profile of cytokines and chemokines were determined during HRSV, HBoV, and HRSV coinfection with HBoV in 75 nasopharyngeal aspirates (NPAs) samples, positive real-time reverse transcriptase PCR Assay (rRT-PCR) for HRSV (n = 36), HBoV (n = 23) infection alone or HRSV coinfection with HBoV (n = 16). The samples were collected from hospitalized children. qPCR-based detection revealed that the levels of IL-6, IL-8, IL-10, IL-13, IL-33, and G-CSF were significantly (p < 0.05) greater in patients than in controls. IL-4, IL-17, GM-CSF, and CCL-5 were significantly elevated in children with HRSV coinfection with HBoV than in other groups (p < 0.05). TNF-α, IL-6, IL-8, IL-10, IL-13, and IL-33 in children with HRSV were significantly increased in severe infections compared to mild infections. Whereas, IL-10, IL-13, and IL-33 were significantly increased in severe infection in compared a mild infection in children with HBoV. Further large-scale investigations involving isolates are needed to enhance our knowledge of the association between viral infections and cytokine expression patterns during the different stages of HRSV and HBoV infection.
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Affiliation(s)
- Noorah A Alkubaisi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ibrahim M Aziz
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Asma N Alsaleh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdulkarim F Alhetheel
- Department of Pathology and Laboratory Medicine, College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fahad N Almajhdi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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4
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Reddout C, Hernandez LP, Chase CCL, Beck P, White F, Salak-Johnson JL. Immune phenotype is differentially affected by changing the type of bovine respiratory disease vaccine administered at revaccination in beef heifers. Front Vet Sci 2023; 10:1161902. [PMID: 37138923 PMCID: PMC10149669 DOI: 10.3389/fvets.2023.1161902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/24/2023] [Indexed: 05/05/2023] Open
Abstract
During preconditioning, modified-live vaccines are frequently administered to beef calves before weaning. In this study, we began to characterize the immune phenotype of calves that received a modified-live vaccination at 3-4 months of age and then either received the same modified-live or an inactivated vaccine upon arrival at the feedlot (weaning) and 28 days post-arrival (booster). Innate and adaptive immune measures were assessed before revaccination and 14 and 28 days post. Heifers that received three doses of the modified-live vaccine exhibited a relatively balanced immune response based on increases in mean cytokine concentrations (IL-17, IL-21) and total immunoglobulin-G (IgG) and subsets IgG1 and IgG2, which are related to both arms of the adaptive immune system. Conversely, heifers that received one dose of modified live and two doses of the inactivated vaccine had a more robust neutrophil chemotactic response and greater serum-neutralizing antibody titers, resulting in an enhanced innate immune and a skewed proinflammatory response. These results indicate that the revaccination protocol used after initial vaccination with a modified-live vaccine differentially influences the immune phenotype of beef calves, with three doses of modified live inducing potentially immune homeostasis and a combination of modified live and inactivated vaccines inducing a skewed immune phenotype. However, more research is needed to determine the protective efficacy of these vaccination protocols against disease.
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Affiliation(s)
- Cassidy Reddout
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
| | - Lily P. Hernandez
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
| | - Christopher C. L. Chase
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, United States
| | - Paul Beck
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
| | - Frank White
- Elanco Animal Health, Greenfield, IN, United States
| | - Janeen L. Salak-Johnson
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
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Qiu X, Xu S, Lu Y, Luo Z, Yan Y, Wang C, Ji J. Development of mRNA vaccines against respiratory syncytial virus (RSV). Cytokine Growth Factor Rev 2022; 68:37-53. [PMID: 36280532 DOI: 10.1016/j.cytogfr.2022.10.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 02/06/2023]
Abstract
Respiratory syncytial virus (RSV) is a single-stranded negative-sense RNA virus that is the primary etiologic pathogen of bronchitis and pneumonia in infants and the elderly. Currently, no preventative vaccine has been approved for RSV infection. However, advances in the characterization, and structural resolution, of the RSV surface fusion glycoprotein have revolutionized RSV vaccine development by providing a new target for preventive interventions. In general, six different approaches have been adopted in the development of preventative RSV therapeutics, namely, particle-based vaccines, vector-based vaccines, live-attenuated or chimeric vaccines, subunit vaccines, mRNA vaccines, and monoclonal antibodies. Among these preventive interventions, MVA-BN-RSV, RSVpreF3, RSVpreF, Ad26. RSV.preF, nirsevimab, clesrovimab and mRNA-1345 is being tested in phase 3 clinical trials, and displays the most promising in infant or elderly populations. Accompanied by the huge success of mRNA vaccines in COVID-19, mRNA vaccines have been rapidly developed, with many having entered clinical studies, in which they have demonstrated encouraging results and acceptable safety profiles. In fact, Moderna has received FDA approval, granting fast-track designation for an investigational single-dose mRNA-1345 vaccine against RSV in adults over 60 years of age. Hence, mRNA vaccines may represent a new, more successful, chapter in the continued battle to develop effective preventative measures against RSV. This review discusses the structure, life cycle, and brief history of RSV, while also presenting the current advancements in RSV preventatives, with a focus on the latest progress in RSV mRNA vaccine development. Finally, future prospects for this field are presented.
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Affiliation(s)
- Xirui Qiu
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Siyan Xu
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yang Lu
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zichen Luo
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yangtian Yan
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Chuyue Wang
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jianjian Ji
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Nanjing University of Chinese Medicine, Nanjing, China.
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Li M, Fan X, Zhou L, Jiang M, Shang E. The effect of Ma-Xin-Gan-Shi decoction on asthma exacerbated by respiratory syncytial virus through regulating TRPV1 channel. JOURNAL OF ETHNOPHARMACOLOGY 2022; 291:115157. [PMID: 35247474 DOI: 10.1016/j.jep.2022.115157] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/25/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The incidence and mortality of bronchial asthma are increasing, and respiratory syncytial virus (RSV) is widely regarded as the common cause of clinical exacerbation of asthma. Ma-Xing-Gan-Shi decoction (MXGSD), a classic traditional Chinese medicine prescription, is well-known for treating respiratory diseases, while the mechanism of effecting on RSV-exacerbated asthma remains to be explored. AIM OF THE STUDY In this study, we investigated the mechanism by which MXGSD exerts a protective effect on asthma exacerbated by RSV in vivo and in vitro. MATERIALS AND METHODS MXGSD is composed of four Chinese medicine, including Ephedra intermedia Schrenk & C.A.Mey. (herbaceous stem, 27g), Prunus armeniaca L. (dry seed, 27g), Glycyrrhiza uralensis Fisch. (radix and rhizome, 18g), and Gypsum fibrosum (main component: CaSO4·2H2O, 54g). In the present study, the exacerbated asthmatic mice model with the treatment of OVA plus RSV was replicated, and accompanied by the TMT proteomic analysis and further experimental investigations. Then, the protective effect of MXGSD (13.2, 6.6, 3.3 g/kg/d, 7d) on the mice treated by OVA plus RSV, and the mechanism of regulating TRPV1 was explored. In addition, the intracellular Ca2+ concentration of 16HBE cells pretreated with MXGSD medicated serum was also tested after stimulation with the TRPV1 agonist capsaicin. RESULTS The results suggested that MXGSD could reduce the levels of inflammation cells, airway hyperresponsiveness, and pathological damage of lung tissue. TMT quantitative proteomics analysis and further experimental exploration revealed that MXGSD could reduce the levels of IL-4, IL-13, PGE2, and SP in BAL and down-regulate the expression of TRPV1 mRNA and protein in lung tissue. Furthermore, 16HBE cells stimulated by capsaicin showed an increased intracellular Ca2+ concentration, while the pretreatment of MXGSD medicated serum could reduce it. CONCLUSION MSGSD showed a protective effect on RSV-exacerbated asthma, which may be related to its regulation of TRPV1 expression and reduction of Th2 cytokines and neurogenic inflammatory mediators. It may provide an objective basis and reference for the clinical application of MXGSD.
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Affiliation(s)
- Mengwen Li
- School of Traditional Chinese Medicine & Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Xinsheng Fan
- School of Traditional Chinese Medicine & Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Liping Zhou
- School of Traditional Chinese Medicine & Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Minyue Jiang
- School of Traditional Chinese Medicine & Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Erxin Shang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China.
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7
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Sakleshpur S, Steed AL. Influenza: Toward understanding the immune response in the young. Front Pediatr 2022; 10:953150. [PMID: 36061377 PMCID: PMC9437304 DOI: 10.3389/fped.2022.953150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/28/2022] [Indexed: 12/12/2022] Open
Abstract
Annually influenza causes a global epidemic resulting in 290,000 to 650,000 deaths and extracts a massive toll on healthcare and the economy. Infants and children are more susceptible to infection and have more severe symptoms than adults likely mitigated by differences in their innate and adaptive immune responses. While it is unclear the exact mechanisms with which the young combat influenza, it is increasingly understood that their immune responses differ from adults. Specifically, underproduction of IFN-γ and IL-12 by the innate immune system likely hampers viral clearance while upregulation of IL-6 may create excessive damaging inflammation. The infant's adaptive immune system preferentially utilizes the Th-2 response that has been tied to γδ T cells and their production of IL-17, which may be less advantageous than the adult Th-1 response for antiviral immunity. This differential immune response of the young is considered to serve as a unique evolutionary adaptation such that they preferentially respond to infection broadly rather than a pathogen-specific one generated by adults. This unique function of the young immune system is temporally, and possibly mechanistically, tied to the microbiota, as they both develop in coordination early in life. Additional research into the relationship between the developing microbiota and the immune system is needed to develop therapies effective at combating influenza in the youngest and most vulnerable of our population.
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Affiliation(s)
- Sonia Sakleshpur
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, United States
| | - Ashley L Steed
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, United States
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Karakioulaki M, Papakonstantinou E, Goulas A, Stolz D. The Role of Atopy in COPD and Asthma. Front Med (Lausanne) 2021; 8:674742. [PMID: 34490286 PMCID: PMC8418108 DOI: 10.3389/fmed.2021.674742] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 07/26/2021] [Indexed: 12/31/2022] Open
Abstract
Common to several allergic diseases is the generation of immunoglobulin E (IgE) by plasma cells, when exposed to an innocuous antigen. Asthma and chronic obstructive pulmonary disease (COPD) are two prevalent chronic airway inflammatory diseases. Asthma is mediated in some patients through eosinophilic inflammatory mechanisms that include allergic sensitization and Th2-mediated immune airway response. COPD, on the other hand is mainly considered a Th1-mediated inflammatory process with neutrophilic predominance or a non-Th2 inflammation, occasionally associated with the presence of airway bacteria or viruses. IgE production appears to play an important role in the development of both COPD and asthma, as it has been associated to respiratory symptoms, lung function, bacterial and viral infections, airway remodeling and bronchial hyperreactivity in both diseases. The aim of this review is to summarize all current data concerning the role of specific and total IgE in COPD and asthma and to highlight similarities and differences in view of possible therapeutic interventions.
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Affiliation(s)
- Meropi Karakioulaki
- Clinic of Respiratory Medicine and Pulmonary Cell Research, University Hospital of Basel, Basel, Switzerland.,First Laboratory of Pharmacology, Department of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleni Papakonstantinou
- Clinic of Respiratory Medicine and Pulmonary Cell Research, University Hospital of Basel, Basel, Switzerland.,First Laboratory of Pharmacology, Department of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Antonios Goulas
- First Laboratory of Pharmacology, Department of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Daiana Stolz
- Clinic of Respiratory Medicine and Pulmonary Cell Research, University Hospital of Basel, Basel, Switzerland
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Looi K, Larcombe AN, Perks KL, Berry LJ, Zosky GR, Rigby P, Knight DA, Kicic A, Stick SM. Previous Influenza Infection Exacerbates Allergen Specific Response and Impairs Airway Barrier Integrity in Pre-Sensitized Mice. Int J Mol Sci 2021; 22:ijms22168790. [PMID: 34445491 PMCID: PMC8395745 DOI: 10.3390/ijms22168790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/04/2021] [Accepted: 08/11/2021] [Indexed: 01/15/2023] Open
Abstract
In this study we assessed the effects of antigen exposure in mice pre-sensitized with allergen following viral infection on changes in lung function, cellular responses and tight junction expression. Female BALB/c mice were sensitized to ovalbumin and infected with influenza A before receiving a second ovalbumin sensitization and challenge with saline, ovalbumin (OVA) or house dust mite (HDM). Fifteen days post-infection, bronchoalveolar inflammation, serum antibodies, responsiveness to methacholine and barrier integrity were assessed. There was no effect of infection alone on bronchoalveolar lavage cellular inflammation 15 days post-infection; however, OVA or HDM challenge resulted in increased bronchoalveolar inflammation dominated by eosinophils/neutrophils or neutrophils, respectively. Previously infected mice had higher serum OVA-specific IgE compared with uninfected mice. Mice previously infected, sensitized and challenged with OVA were most responsive to methacholine with respect to airway resistance, while HDM challenge caused significant increases in both tissue damping and tissue elastance regardless of previous infection status. Previous influenza infection was associated with decreased claudin-1 expression in all groups and decreased occludin expression in OVA or HDM-challenged mice. This study demonstrates the importance of the respiratory epithelium in pre-sensitized individuals, where influenza-infection-induced barrier disruption resulted in increased systemic OVA sensitization and downstream effects on lung function.
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Affiliation(s)
- Kevin Looi
- Wal-yan Respiratory Research Centre, Telethon Kids Institute, Nedlands 6009, Australia; (K.L.); (K.L.P.); (L.J.B.); (A.K.); (S.M.S.)
- Occupation, Environment and Safety, School of Population Health, Curtin University, Perth 6845, Australia
| | - Alexander N. Larcombe
- Wal-yan Respiratory Research Centre, Telethon Kids Institute, Nedlands 6009, Australia; (K.L.); (K.L.P.); (L.J.B.); (A.K.); (S.M.S.)
- Occupation, Environment and Safety, School of Population Health, Curtin University, Perth 6845, Australia
- Correspondence:
| | - Kara L. Perks
- Wal-yan Respiratory Research Centre, Telethon Kids Institute, Nedlands 6009, Australia; (K.L.); (K.L.P.); (L.J.B.); (A.K.); (S.M.S.)
| | - Luke J. Berry
- Wal-yan Respiratory Research Centre, Telethon Kids Institute, Nedlands 6009, Australia; (K.L.); (K.L.P.); (L.J.B.); (A.K.); (S.M.S.)
| | - Graeme R. Zosky
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart 7001, Australia;
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart 7001, Australia
| | - Paul Rigby
- Centre for Microscopy, Characterisation and Analysis (CMCA), University of Western Australia, Nedlands 6009, Australia;
| | - Darryl A. Knight
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan 2308, Australia;
- Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, Newcastle 2305, Australia
- Department of Anaesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Anthony Kicic
- Wal-yan Respiratory Research Centre, Telethon Kids Institute, Nedlands 6009, Australia; (K.L.); (K.L.P.); (L.J.B.); (A.K.); (S.M.S.)
- Occupation, Environment and Safety, School of Population Health, Curtin University, Perth 6845, Australia
- Centre for Cell Therapy and Regenerative Medicine, University of Western Australia, Nedlands 6009, Australia
- Department of Respiratory and Sleep Medicine, Perth Children’s Hospital, Perth 6009, Australia
| | - Stephen M. Stick
- Wal-yan Respiratory Research Centre, Telethon Kids Institute, Nedlands 6009, Australia; (K.L.); (K.L.P.); (L.J.B.); (A.K.); (S.M.S.)
- Centre for Cell Therapy and Regenerative Medicine, University of Western Australia, Nedlands 6009, Australia
- Department of Respiratory and Sleep Medicine, Perth Children’s Hospital, Perth 6009, Australia
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Díaz FE, Guerra-Maupome M, McDonald PO, Rivera-Pérez D, Kalergis AM, McGill JL. A Recombinant BCG Vaccine Is Safe and Immunogenic in Neonatal Calves and Reduces the Clinical Disease Caused by the Respiratory Syncytial Virus. Front Immunol 2021; 12:664212. [PMID: 33981309 PMCID: PMC8108697 DOI: 10.3389/fimmu.2021.664212] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/31/2021] [Indexed: 12/18/2022] Open
Abstract
The human respiratory syncytial virus (hRSV) constitutes a major health burden, causing millions of hospitalizations in children under five years old worldwide due to acute lower respiratory tract infections. Despite decades of research, licensed vaccines to prevent hRSV are not available. Development of vaccines against hRSV targeting young infants requires ruling out potential vaccine-enhanced disease presentations. To achieve this goal, vaccine testing in proper animal models is essential. A recombinant BCG vaccine that expresses the Nucleoprotein of hRSV (rBCG-N-hRSV) protects mice against hRSV infection, eliciting humoral and cellular immune protection. Further, this vaccine was shown to be safe and immunogenic in human adult volunteers. Here, we evaluated the safety, immunogenicity, and protective efficacy of the rBCG-N-hRSV vaccine in a neonatal bovine RSV calf infection model. Newborn, colostrum-replete Holstein calves were either vaccinated with rBCG-N-hRSV, WT-BCG, or left unvaccinated, and then inoculated via aerosol challenge with bRSV strain 375. Vaccination with rBCG-N-hRSV was safe and well-tolerated, with no systemic adverse effects. There was no evidence of vaccine-enhanced disease following bRSV challenge of rBCG-N-hRSV vaccinated animals, suggesting that the vaccine is safe for use in neonates. Vaccination increased virus-specific IgA and virus-neutralization activity in nasal fluid and increased the proliferation of virus- and BCG-specific CD4+ and CD8+ T cells in PBMCs and lymph nodes at 7dpi. Furthermore, rBCG-N-hRSV vaccinated calves developed reduced clinical disease as compared to unvaccinated control calves, although neither pathology nor viral burden were significantly reduced in the lungs. These results suggest that the rBCG-N-hRSV vaccine is safe in neonatal calves and induces protective humoral and cellular immunity against this respiratory virus. These data from a newborn animal model provide further support to the notion that this vaccine approach could be considered as a candidate for infant immunization against RSV.
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Affiliation(s)
- Fabián E Díaz
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mariana Guerra-Maupome
- Department of Veterinary Microbiology and Preventative Medicine, Iowa State University, Ames, IA, United States
| | - Paiton O McDonald
- Department of Veterinary Microbiology and Preventative Medicine, Iowa State University, Ames, IA, United States
| | - Daniela Rivera-Pérez
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jodi L McGill
- Department of Veterinary Microbiology and Preventative Medicine, Iowa State University, Ames, IA, United States
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11
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Semmes EC, Chen JL, Goswami R, Burt TD, Permar SR, Fouda GG. Understanding Early-Life Adaptive Immunity to Guide Interventions for Pediatric Health. Front Immunol 2021; 11:595297. [PMID: 33552052 PMCID: PMC7858666 DOI: 10.3389/fimmu.2020.595297] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 12/04/2020] [Indexed: 01/16/2023] Open
Abstract
Infants are capable of mounting adaptive immune responses, but their ability to develop long-lasting immunity is limited. Understanding the particularities of the neonatal adaptive immune system is therefore critical to guide the design of immune-based interventions, including vaccines, in early life. In this review, we present a thorough summary of T cell, B cell, and humoral immunity in early life and discuss infant adaptive immune responses to pathogens and vaccines. We focus on the differences between T and B cell responses in early life and adulthood, which hinder the generation of long-lasting adaptive immune responses in infancy. We discuss how knowledge of early life adaptive immunity can be applied when developing vaccine strategies for this unique period of immune development. In particular, we emphasize the use of novel vaccine adjuvants and optimization of infant vaccine schedules. We also propose integrating maternal and infant immunization strategies to ensure optimal neonatal protection through passive maternal antibody transfer while avoiding hindering infant vaccine responses. Our review highlights that the infant adaptive immune system is functionally distinct and uniquely regulated compared to later life and that these particularities should be considered when designing interventions to promote pediatric health.
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Affiliation(s)
- Eleanor C. Semmes
- Duke Human Vaccine Institute, Duke University, Durham, NC, United States
- Medical Scientist Training Program, Duke University, Durham, NC, United States
- Children’s Health and Discovery Initiative, Department of Pediatrics, Duke University, Durham, NC, United States
| | - Jui-Lin Chen
- Duke Human Vaccine Institute, Duke University, Durham, NC, United States
| | - Ria Goswami
- Duke Human Vaccine Institute, Duke University, Durham, NC, United States
| | - Trevor D. Burt
- Children’s Health and Discovery Initiative, Department of Pediatrics, Duke University, Durham, NC, United States
- Division of Neonatology, Department of Pediatrics, Duke University, Durham, NC, United States
| | - Sallie R. Permar
- Duke Human Vaccine Institute, Duke University, Durham, NC, United States
- Children’s Health and Discovery Initiative, Department of Pediatrics, Duke University, Durham, NC, United States
| | - Genevieve G. Fouda
- Duke Human Vaccine Institute, Duke University, Durham, NC, United States
- Children’s Health and Discovery Initiative, Department of Pediatrics, Duke University, Durham, NC, United States
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12
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Vu LD, Siefker D, Jones TL, You D, Taylor R, DeVincenzo J, Cormier SA. Elevated Levels of Type 2 Respiratory Innate Lymphoid Cells in Human Infants with Severe Respiratory Syncytial Virus Bronchiolitis. Am J Respir Crit Care Med 2020; 200:1414-1423. [PMID: 31237777 DOI: 10.1164/rccm.201812-2366oc] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Rationale: Studies of the immune responses at the site of respiratory syncytial virus (RSV) infection are sparse despite nearly five decades of research into understanding RSV disease.Objectives: To investigate the role of mucosal innate immune responses to RSV and respiratory viral load in infants hospitalized with the natural disease.Methods: Cytokines, viral load, and type 2 innate lymphoid cell (ILC2) levels in nasal aspirates, collected within 24 hours of enrollment, from infants hospitalized with RSV infection were quantified.Measurements and Main Results: RSV severity in infants was categorized based on admission to the general ward (moderate) or the pediatric ICU (severe). Evaluable subjects included 30 patients with severe and 63 patients with moderate disease (median age, 74 d; range, 9-297 d). ILC2s were found in the nasal aspirates of patients with severe disease (0.051% of total respiratory CD45+ cells) to a significantly greater extent than in patients with moderate disease (0.018%, P = 0.004). Levels of IL-4, IL-13, IL-33, and IL-1β were significantly higher in nasal aspirates of patients with severe disease compared with those of patients with moderate disease. Factors associated with disease severity were gestational age (odds ratio, 0.49; 95% confidence interval, 0.29-0.82; P = 0.007) and IL-4 (odds ratio, 9.67; 95% confidence interval, 2.45-38.15; P = 0.001).Conclusions: This study shows, for the first time, that elevated levels of ILC2s is associated with infant RSV severity. The findings highlight the dominance of type-2 responses to RSV infection in infants and suggest an important role of ILC2 in shaping the immune response early during RSV infection.
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Affiliation(s)
- Luan D Vu
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana.,Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, Louisiana
| | - David Siefker
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana.,Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, Louisiana
| | - Tamekia L Jones
- Department of Pediatrics.,Department of Preventive Medicine, and.,Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, Tennessee
| | | | | | - John DeVincenzo
- Department of Pediatrics.,Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee; and.,Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, Tennessee
| | - Stephania A Cormier
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana.,Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, Louisiana
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13
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Thwaites RS, Openshaw PJ. The Respiratory Mucosa: Front and Center in Respiratory Syncytial Virus Disease. Am J Respir Crit Care Med 2019; 200:1340-1342. [PMID: 31412707 PMCID: PMC6884050 DOI: 10.1164/rccm.201907-1306ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- Ryan S Thwaites
- National Heart and Lung InstituteImperial College LondonLondon, United Kingdom
| | - Peter J Openshaw
- National Heart and Lung InstituteImperial College LondonLondon, United Kingdom
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14
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Caserta MT, Yang H, Bandyopadhyay S, Qiu X, Gill SR, Java J, McDavid A, Falsey AR, Topham DJ, Holden-Wiltse J, Scheible K, Pryhuber G. Measuring the Severity of Respiratory Illness in the First 2 Years of Life in Preterm and Term Infants. J Pediatr 2019; 214:12-19.e3. [PMID: 31377041 PMCID: PMC6815715 DOI: 10.1016/j.jpeds.2019.06.061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 06/10/2019] [Accepted: 06/25/2019] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To develop a valid research tool to measure infant respiratory illness severity using parent-reported symptoms. STUDY DESIGN Nose and throat swabs were collected monthly for 1 year and during respiratory illnesses for 2 years in a prospective study of term and preterm infants in the Prematurity, Respiratory Outcomes, Immune System and Microbiome study. Viral pathogens were detected using Taqman Array Cards. Parents recorded symptoms during respiratory illnesses using a Childhood Origins of Asthma (COAST) scorecard. The COAST score was validated using linear mixed effects regression modeling to evaluate associations with hospitalization and specific infections. A data-driven method was also used to compute symptom weights and derive a new score, the Infant Research Respiratory Infection Severity Score (IRRISS). Linear mixed effects regression modeling was repeated with the IRRISS illness data. RESULTS From April 2013 to April 2017, 50 term, 40 late preterm, and 28 extremely low gestational age (<29 weeks of gestation) infants had 303 respiratory illness visits with viral testing and parent-reported symptoms. A range of illness severity was described with 39% of illness scores suggestive of severe disease. Both the COAST score and IRRISS were associated with respiratory syncytial virus infection and hospitalization. Gestational age and human rhinovirus infection were inversely associated with both scoring systems. The IRRISS and COAST scores were highly correlated (r = 0.93; P < .0001). CONCLUSIONS Using parent-reported symptoms, we validated the COAST score as a measure of respiratory illness severity in infants. The new IRRISS score performed as well as the COAST score.
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Key Words
- auc, area under the curve
- coast, childhood origins of asthma study
- ed, emergency department
- elgans, extremely low gestational age newborns
- hrv, human rhinovirus
- irriss, infant research respiratory infection severity score
- lmer, linear mixed effects regression modeling
- prism, prematurity, respiratory outcomes, immune system and microbiome
- rsv, respiratory syncytial virus
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Affiliation(s)
- Mary T. Caserta
- Department of Pediatrics, University of Rochester Medical Center, Rochester, NY,Reprint requests: Mary T. Caserta, MD, Division of Pediatric Infectious Diseases, 601 Elmwood Ave, Box 690, Rochester, NY 14642
| | - Hongmei Yang
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY
| | - Sanjukta Bandyopadhyay
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY
| | - Xing Qiu
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY
| | - Steven R. Gill
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY
| | - James Java
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY
| | - Andrew McDavid
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY
| | - Ann R. Falsey
- Department of Medicine-Infectious Diseases, University of Rochester Medical Center, Rochester, NY
| | - David J. Topham
- Center for Vaccine Biology and Immunology, University of Rochester Medical Center, Rochester, NY
| | - Jeanne Holden-Wiltse
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY,UR Clinical and Translational Science Institute, University of Rochester Medical Center, Rochester, NY
| | - Kristin Scheible
- Department of Pediatrics, University of Rochester Medical Center, Rochester, NY
| | - Gloria Pryhuber
- Department of Pediatrics, University of Rochester Medical Center, Rochester, NY,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY
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15
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Chau-Etchepare F, Hoerger JL, Kuhn BT, Zeki AA, Haczku A, Louie S, Kenyon NJ, Davis CE, Schivo M. Viruses and non-allergen environmental triggers in asthma. J Investig Med 2019; 67:1029-1041. [PMID: 31352362 PMCID: PMC7428149 DOI: 10.1136/jim-2019-001000] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2019] [Indexed: 12/23/2022]
Abstract
Asthma is a complex inflammatory disease with many triggers. The best understood asthma inflammatory pathways involve signals characterized by peripheral eosinophilia and elevated immunoglobulin E levels (called T2-high or allergic asthma), though other asthma phenotypes exist (eg, T2-low or non-allergic asthma, eosinophilic or neutrophilic-predominant). Common triggers that lead to poor asthma control and exacerbations include respiratory viruses, aeroallergens, house dust, molds, and other organic and inorganic substances. Increasingly recognized non-allergen triggers include tobacco smoke, small particulate matter (eg, PM2.5), and volatile organic compounds. The interaction between respiratory viruses and non-allergen asthma triggers is not well understood, though it is likely a connection exists which may lead to asthma development and/or exacerbations. In this paper we describe common respiratory viruses and non-allergen triggers associated with asthma. In addition, we aim to show the possible interactions, and potential synergy, between viruses and non-allergen triggers. Finally, we introduce a new clinical approach that collects exhaled breath condensates to identify metabolomics associated with viruses and non-allergen triggers that may promote the early management of asthma symptoms.
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Affiliation(s)
- Florence Chau-Etchepare
- Pulmonary, Critical Care, and Sleep Medicine, University of California Davis, Sacramento, California, USA
| | - Joshua L Hoerger
- Internal Medicine, University of California Davis, Sacramento, California, USA
| | - Brooks T Kuhn
- Pulmonary, Critical Care, and Sleep Medicine, University of California Davis, Sacramento, California, USA
| | - Amir A Zeki
- Pulmonary, Critical Care, and Sleep Medicine, University of California Davis, Sacramento, California, USA
- Center for Comparative Respiratory Biology and Medicine, University of California Davis, Davis, California, USA
| | - Angela Haczku
- Pulmonary, Critical Care, and Sleep Medicine, University of California Davis, Sacramento, California, USA
- Center for Comparative Respiratory Biology and Medicine, University of California Davis, Davis, California, USA
| | - Samuel Louie
- Pulmonary, Critical Care, and Sleep Medicine, University of California Davis, Sacramento, California, USA
| | - Nicholas J Kenyon
- Pulmonary, Critical Care, and Sleep Medicine, University of California Davis, Sacramento, California, USA
- Center for Comparative Respiratory Biology and Medicine, University of California Davis, Davis, California, USA
| | - Cristina E Davis
- Mechanical and Aerospace Engineering, University of California Davis, Davis, California, USA
| | - Michael Schivo
- Pulmonary, Critical Care, and Sleep Medicine, University of California Davis, Sacramento, California, USA
- Center for Comparative Respiratory Biology and Medicine, University of California Davis, Davis, California, USA
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16
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Mikhail I, Grayson MH. Asthma and viral infections: An intricate relationship. Ann Allergy Asthma Immunol 2019; 123:352-358. [PMID: 31276807 PMCID: PMC7111180 DOI: 10.1016/j.anai.2019.06.020] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/11/2019] [Accepted: 06/24/2019] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To synthesize available data related to the complex associations among viral infections, atopy, and asthma. DATA SOURCES Key historical articles, articles highlighted in our recent review of most significant recent asthma advancements, and findings from several birth cohorts related to asthma and viral infections were reviewed. In addition, PubMed was searched for review articles and original research related to the associations between viral infection and asthma, using the search words asthma, viral infections, atopy, development of asthma, rhinovirus (RV), and respiratory syncytial virus (RSV). STUDY SELECTIONS Articles were selected based on novelty and relevance to our topic of interest, the role of asthma and viral infections, and possible mechanisms to explain the association. RESULTS There is a large body of evidence demonstrating a link between early viral infections (especially RV and RSV) and asthma inception and exacerbations. RV-induced wheezing is an important risk factor for asthma only when atopy is present, with much evidence supporting the idea that sensitization is a risk factor for early RV-induced wheezing, which in turn is a risk factor for asthma. RSV, on the other hand, is a more important risk factor for nonatopic asthma, with severe infections conferring greater risk. CONCLUSION There are important differences in the development of atopic and nonatopic asthma, with several proposed mechanisms explaining the association between viral infections and the development of asthma and asthma exacerbations. Understanding these complex associations is important for developing asthma prevention strategies and targeted asthma therapies.
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Affiliation(s)
- Irene Mikhail
- Division of Allergy and Immunology, Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, Ohio.
| | - Mitchell H Grayson
- Division of Allergy and Immunology, Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, Ohio
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17
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Han X, Bai S, Cui Y, Zhu W, Zhao N, Liu B. Essential role of CD4 + T cells for the activation of group 2 innate lymphoid cells during respiratory syncytial virus infection in mice. Immunotherapy 2019; 11:1303-1313. [PMID: 31478420 DOI: 10.2217/imt-2019-0084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Aim: To investigate whether and how CD4+ T cells contribute to ILC2 activation during respiratory syncytial virus (RSV) infection. Methods: The methods of flow cytometry, quantitative PCR and ELISA were used in the present study. Results: Depletion of CD4+ T cells diminished the numbers of lung ILC2s as well as their ability to produce type 2 cytokines. CD4+ T cell-mediated ILC2 activation is related to IL-2. The main cellular source of IL-2 was CD4+ T cells. Depletion of CD4+ T cells decreased IL-2 levels in the lungs of RSV-infected mice. IL-2 can directly stimulate ILC2 proliferation and promote ILC2s to produce cytokines. Treatment of mice with neutralizing anti-IL-2 monoclonal antibodies diminished ILC2 activation. Conclusion: These results suggest that CD4+ T cells contribute to RSV-induced ILC2 activation partly via producing IL-2.
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Affiliation(s)
- Xu Han
- Department of Pathogenic Biology, School of Basic Medical Science, China Medical University, Shenyang, China.,Department of Medical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Song Bai
- Department of Pathogenic Biology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Yulin Cui
- Department of Pathogenic Biology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Wenwen Zhu
- Department of Pathogenic Biology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Na Zhao
- Department of Pathogenic Biology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Beixing Liu
- Department of Pathogenic Biology, School of Basic Medical Science, China Medical University, Shenyang, China
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18
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Ma WT, Yao XT, Peng Q, Chen DK. The protective and pathogenic roles of IL-17 in viral infections: friend or foe? Open Biol 2019; 9:190109. [PMID: 31337278 PMCID: PMC6685926 DOI: 10.1098/rsob.190109] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Viral infections cause substantial human morbidity and mortality, and are a significant health burden worldwide. Following a viral infection, the host may initiate complex antiviral immune responses to antagonize viral invasion and replication. However, proinflammatory antiviral immune responses pose a great threat to the host if not properly held in check. Interleukin (IL)-17 is a pleiotropic cytokine participating in a variety of physiological and pathophysiological conditions, including tissue integrity maintenance, cancer progression, autoimmune disease development and, more intriguingly, infectious diseases. Abundant evidence suggests that while IL-17 plays a crucial role in enhancing effective antiviral immune responses, it may also promote and exacerbate virus-induced illnesses. Accumulated experimental and clinical evidence has broadened our understanding of the seemingly paradoxical role of IL-17 in viral infections and suggests that IL-17-targeted immunotherapy may be a promising therapeutic option. Herein, we summarize current knowledge regarding the protective and pathogenic roles of IL-17 in viral infections, with emphasis on underlying mechanisms. The various and critical roles of IL-17 in viral infections necessitate the development of therapeutic strategies that are uniquely tailored to both the infectious agent and the infection environment.
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Affiliation(s)
- Wen-Tao Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi Province, People's Republic of China
| | - Xiao-Ting Yao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi Province, People's Republic of China
| | - Qun Peng
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi Province, People's Republic of China
| | - De-Kun Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi Province, People's Republic of China
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19
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Vázquez Y, González L, Noguera L, González PA, Riedel CA, Bertrand P, Bueno SM. Cytokines in the Respiratory Airway as Biomarkers of Severity and Prognosis for Respiratory Syncytial Virus Infection: An Update. Front Immunol 2019; 10:1154. [PMID: 31214165 PMCID: PMC6557983 DOI: 10.3389/fimmu.2019.01154] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 05/07/2019] [Indexed: 12/24/2022] Open
Abstract
The human respiratory syncytial virus (hRSV) is one of the most important causes of upper and lower respiratory tract infections in children and the main cause of bronchiolitis worldwide. Disease manifestations caused by hRSV may vary from mild to severe, occasionally requiring admission and hospitalization in intensive care units. Despite the high morbidity rates associated to bronchiolitis, treatment options against hRSV are limited and there are no current vaccination strategies to prevent infection. Importantly, the early identification of high-risk patients can help improve disease management and prevent complications associated with hRSV infection. Recently, the characterization of pro- and anti-inflammatory cytokine patterns produced during hRSV-related inflammatory processes has allowed the identification of potential prognosis biomarkers. A suitable biomarker should allow predicting the severity of the infection in a simple and opportune manner and should ideally be obtained from non-invasive samples. Among the cytokines associated with hRSV disease severity, IL-8, interferon-alpha (IFN-alpha), and IL-6, as well as the Th2-type cytokines thymic stromal lymphopoietin (TSLP), IL-3, and IL-33 have been highlighted as molecules with prognostic value in hRSV infections. In this review, we discuss current studies that describe molecules produced by patients during hRSV infection and their potential as biomarkers to anticipate the severity of the disease caused by this virus.
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Affiliation(s)
- Yaneisi Vázquez
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Liliana González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Loreani Noguera
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A. González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A. Riedel
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Pablo Bertrand
- División de Pediatría, Unidad de Enfermedades Respiratorias Pediátricas, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M. Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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20
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Guerra-Maupome M, Palmer MV, McGill JL, Sacco RE. Utility of the Neonatal Calf Model for Testing Vaccines and Intervention Strategies for Use against Human RSV Infection. Vaccines (Basel) 2019; 7:vaccines7010007. [PMID: 30626099 PMCID: PMC6466205 DOI: 10.3390/vaccines7010007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/26/2018] [Accepted: 01/04/2019] [Indexed: 01/23/2023] Open
Abstract
Respiratory syncytial virus (RSV) is a significant cause of pediatric respiratory tract infections. It is estimated that two-thirds of infants are infected with RSV during the first year of life and it is one of the leading causes of death in this age group worldwide. Similarly, bovine RSV is a primary viral pathogen in cases of pneumonia in young calves and plays a significant role in bovine respiratory disease complex. Importantly, naturally occurring infection of calves with bovine RSV shares many features in common with human RSV infection. Herein, we update our current understanding of RSV infection in cattle, with particular focus on similarities between the calf and human infection, and the recent reports in which the neonatal calf has been employed for the development and testing of vaccines and therapeutics which may be applied to hRSV infection in humans.
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Affiliation(s)
- Mariana Guerra-Maupome
- Department of Veterinary Microbiology and Preventative Medicine, Iowa State University, Ames, IA 50011, USA.
| | - Mitchell V Palmer
- Infectious Bacterial Diseases of Livestock Research Unit, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA 50010, USA.
| | - Jodi L McGill
- Department of Veterinary Microbiology and Preventative Medicine, Iowa State University, Ames, IA 50011, USA.
| | - Randy E Sacco
- Ruminant Diseases and Immunology Research Unit, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA 50010, USA.
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21
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Chen S, Yu G, Xie J, Tang W, Gao L, Long X, Ren L, Xie X, Deng Y, Fu Z, Liu E. High-mobility group box-1 protein from CC10 + club cells promotes type 2 response in the later stage of respiratory syncytial virus infection. Am J Physiol Lung Cell Mol Physiol 2018; 316:L280-L290. [PMID: 30407867 DOI: 10.1152/ajplung.00552.2017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The type 2 immune response, induced by infection of respiratory syncytial virus (RSV), has been linked to asthma development, but it remains unclear how the response is initiated. Here, we reported that the high-mobility group box-1 (HMGB1) protein promotes the type 2 response in the later stage of RSV infection. In mice, we found that type 2 cytokines were elevated in the later stages, which were strongly diminished after administration of anti-HMGB1 antibodies. Further investigation revealed that HMGB1 expression was localized to CC10+ club cells in the lung. In the clinic, levels of HMGB1 in nasopharyngeal aspirates in hospitalized infants with RSV bronchiolitis [median (interquartile range) 161.20 ng/ml (68.06-221.30)] were significantly higher than those without lower respiratory tract infections [21.94 ng/ml (12.12-59.82); P < 0.001]. Moreover, higher levels of HMGB1 correlated with clinical severity. These results reveal a link between viral infection and the asthma-like type 2 responses that are associated with long-term consequences.
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Affiliation(s)
- Sisi Chen
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Guangyuan Yu
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Jun Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Wei Tang
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Leiqiong Gao
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Xiaoru Long
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Luo Ren
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Zhou Fu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University , Chongqing , China
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22
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Kimura D, Saravia J, Jaligama S, McNamara I, Vu LD, Sullivan RD, Mancarella S, You D, Cormier SA. New mouse model of pulmonary hypertension induced by respiratory syncytial virus bronchiolitis. Am J Physiol Heart Circ Physiol 2018; 315:H581-H589. [PMID: 29906223 DOI: 10.1152/ajpheart.00627.2017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Pulmonary hypertension (PH) has been observed in up to 75% of infants with moderate to severe respiratory syncytial virus (RSV) bronchiolitis and is associated with significant morbidity and mortality in infants with congenital heart disease. The purpose of the present study was to establish a mouse model of PH secondary to RSV bronchiolitis that mimics the disease etiology as it occurs in infants. Neonatal mice were infected with RSV at 5 days of age and then reinfected 4 wk later. Serum-free medium was administered to age-matched mice as a control. Echocardiography and right ventricular systolic pressure (RVSP) measurements via right jugular vein catheterization were conducted 5 and 6 days after the second infection, respectively. Peripheral capillary oxygen saturation monitoring did not indicate hypoxia at 2-4 days post-RSV infection, before reinfection, and at 2-7 days after reinfection. RSV-infected mice had significantly higher RVSP than control mice. Pulsed-wave Doppler recording of the pulmonary blood flow by echocardiogram demonstrated a significantly shortened pulmonary artery acceleration time and decreased pulmonary artery acceleration time-to-ejection time ratio in RSV-infected mice. Morphometry showed that RSV-infected mice exhibited a significantly higher pulmonary artery medial wall thickness and had an increased number of muscularized pulmonary arteries compared with control mice. These findings, confirmed by RVSP measurements, demonstrate the development of PH in the lungs of mice infected with RSV as neonates. This animal model can be used to study the pathogenesis of PH secondary to RSV bronchiolitis and to assess the effect of treatment interventions. NEW & NOTEWORTHY This is the first mouse model of respiratory syncytial virus-induced pulmonary hypertension, to our knowledge. This model will allow us to decipher molecular mechanisms responsible for the pathogenesis of pulmonary hypertension secondary to respiratory syncytial virus bronchiolitis with the use of knockout and/or transgenic animals and to monitor therapeutic effects with echocardiography.
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Affiliation(s)
- Dai Kimura
- Department of Pediatrics, University of Tennessee Health Science Center, Children's Foundation Research Institute, Le Bonheur Children's Hospital , Memphis, Tennessee
| | - Jordy Saravia
- Department of Pediatrics, University of Tennessee Health Science Center, Children's Foundation Research Institute, Le Bonheur Children's Hospital , Memphis, Tennessee.,Department of Immunology, St. Jude Children's Research Hospital , Memphis, Tennessee
| | - Sridhar Jaligama
- Department of Pediatrics, University of Tennessee Health Science Center, Children's Foundation Research Institute, Le Bonheur Children's Hospital , Memphis, Tennessee.,Battelle Life Science Research, Columbus, Ohio
| | - Isabella McNamara
- Department of Pediatrics, University of Tennessee Health Science Center, Children's Foundation Research Institute, Le Bonheur Children's Hospital , Memphis, Tennessee.,Department of Health Research Methods, Evidence, and Impact, McMaster University , Hamilton, Ontario , Canada
| | - Luan D Vu
- Department of Pediatrics, University of Tennessee Health Science Center, Children's Foundation Research Institute, Le Bonheur Children's Hospital , Memphis, Tennessee.,Department of Biological Sciences, Louisiana State University , Baton Rouge, Louisiana
| | - Ryan D Sullivan
- Department of Comparative Medicine, University of Tennessee Health Science Center , Memphis, Tennessee
| | - Salvatore Mancarella
- Department of Physiology, University of Tennessee Health Science Center , Memphis, Tennessee
| | - Dahui You
- Department of Pediatrics, University of Tennessee Health Science Center, Children's Foundation Research Institute, Le Bonheur Children's Hospital , Memphis, Tennessee
| | - Stephania A Cormier
- Department of Pediatrics, University of Tennessee Health Science Center, Children's Foundation Research Institute, Le Bonheur Children's Hospital , Memphis, Tennessee.,Department of Biological Sciences, Louisiana State University , Baton Rouge, Louisiana
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23
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Vedel-Krogh S, Nordestgaard BG, Lange P, Vestbo J, Nielsen SF. Blood eosinophil count and risk of pneumonia hospitalisations in individuals with COPD. Eur Respir J 2018; 51:13993003.00120-2018. [DOI: 10.1183/13993003.00120-2018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 04/04/2018] [Indexed: 12/11/2022]
Abstract
Blood eosinophil count in chronic obstructive pulmonary disease (COPD) is associated with higher exacerbation rate and favourable response to corticosteroids; however, frequent exacerbations and use of inhaled corticosteroids could elevate pneumonia risk. We tested the hypothesis that high blood eosinophil counts are associated with high risk of pneumonia in individuals with severe COPD from the general population.We included 7180 individuals with COPD from the Copenhagen General Population Study, including 643 with forced expiratory volume in 1 s (FEV1) <50% predicted between 2003 and 2011. All primary discharge diagnoses of pneumonia during follow-up were recorded.Among individuals with COPD and FEV1<50% pred, the multivariable adjusted incidence rate ratio was 2.17 (95% CI 1.31–3.58) for pneumonia comparing individuals with blood eosinophil counts ≥0.34×109 cells·L−1versus<0.34×109 cells·L−1. In individuals with clinical COPD, defined by recent exacerbation, ≥10 pack-years of smoking and FEV1<70% pred, the corresponding risk was 4.52 (2.11–9.72). Risk of pneumonia did not differ by blood eosinophil count in individuals with COPD and FEV1≥50% pred.In individuals with COPD and FEV1<50% pred, blood eosinophil count ≥0.34×109 cells·L−1was associated with high risk of hospitalisation due to pneumonia.
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24
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Abstract
The growth and maturity of the peripheral immune system and subsequent development of pulmonary immunity in early life is dictated by host, environmental and microbial factors. Dysregulation during the critical window of immune development in the postnatal years results in disease which impacts on lifelong lung health. Asthma is a common disease in childhood and is often preceded by wheezing illnesses during the preschool years. However, the mechanisms underlying development of wheeze and how and why only some children progress to asthma is unknown. Human studies to date have generally focused on peripheral immune development, with little assessment of local tissue pathology in young children. Moreover, mechanisms underlying the interactions between inflammation and tissue repair at mucosal surfaces in early life remain unknown. Disappointingly, mechanistic studies in mice have predominantly used adult models. This review will consider the aspects of the neonatal immune system which might contribute to the development of early life wheezing disorders and asthma, and discuss the external environmental factors which may influence this process.
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Affiliation(s)
- Clare M Lloyd
- Inflammation, Repair & Development Section, National Heart and Lung Institute, Faculty of Medicine, Imperial College, London, UK
| | - Sejal Saglani
- Inflammation, Repair & Development Section, National Heart and Lung Institute, Faculty of Medicine, Imperial College, London, UK.,Department of Paediatric Respiratory Medicine, Royal Brompton Hospital, Royal Brompton Harefield NHS Foundation Trust, London, UK
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25
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Looi K, Buckley AG, Rigby PJ, Garratt LW, Iosifidis T, Zosky GR, Larcombe AN, Lannigan FJ, Ling KM, Martinovich KM, Kicic-Starcevich E, Shaw NC, Sutanto EN, Knight DA, Kicic A, Stick SM. Effects of human rhinovirus on epithelial barrier integrity and function in children with asthma. Clin Exp Allergy 2018; 48:513-524. [PMID: 29350877 DOI: 10.1111/cea.13097] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/13/2017] [Accepted: 11/21/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Bronchial epithelial tight junctions (TJ) have been extensively assessed in healthy airway epithelium. However, no studies have yet assessed the effect of human rhinovirus (HRV) infection on the expression and resultant barrier function in epithelial tight junctions (TJ) in childhood asthma. OBJECTIVES To investigate the impact of HRV infection on airway epithelial TJ expression and barrier function in airway epithelial cells (AECs) of children with and without asthma. Furthermore, to test the hypothesis that barrier integrity and function is compromised to a greater extent by HRV in AECs from asthmatic children. METHODS Primary AECs were obtained from children with and without asthma, differentiated into air-liquid interface (ALI) cultures and infected with rhinovirus. Expression of claudin-1, occludin and zonula occluden-1 (ZO-1) was assessed via qPCR, immunocytochemistry (ICC), in-cell western (ICW) and confocal microscopy. Barrier function was assessed by transepithelial electrical resistance (TER; RT ) and permeability to fluorescent dextran. RESULTS Basal TJ gene expression of claudin-1 and occludin was significantly upregulated in asthmatic children compared to non-asthmatics; however, no difference was seen with ZO-1. Interestingly, claudin-1, occludin and ZO-1 protein expression was significantly reduced in AEC of asthmatic children compared to non-asthmatic controls suggesting possible post-transcriptional inherent differences. HRV infection resulted in a transient dissociation of TJ and airway barrier integrity in non-asthmatic children. Although similar dissociation of TJ was observed in asthmatic children, a significant and sustained reduction in TJ expression concurrent with both a significant decrease in TER and an increase in permeability in asthmatic children was observed. CONCLUSION This study demonstrates novel intrinsic differences in TJ gene and protein expression between AEC of children with and without asthma. Furthermore, it correlates directly the relationship between HRV infection and the resultant dissociation of epithelial TJ that causes a continued altered barrier function in children with asthma.
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Affiliation(s)
- K Looi
- School of Paediatrics and Child Health, University of Western Australia, Nedlands, WA, Australia.,Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia
| | - A G Buckley
- Centre for Microscopy, Characterisation and Analysis (CMCA), University of Western Australia, Crawley, WA, Australia
| | - P J Rigby
- Centre for Microscopy, Characterisation and Analysis (CMCA), University of Western Australia, Crawley, WA, Australia
| | - L W Garratt
- School of Paediatrics and Child Health, University of Western Australia, Nedlands, WA, Australia.,Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia
| | - T Iosifidis
- School of Paediatrics and Child Health, University of Western Australia, Nedlands, WA, Australia.,Centre for Cell Therapy and Regenerative Medicine, University of Western Australia, Nedlands, WA, Australia
| | - G R Zosky
- School of Medicine, Faculty of Health, University of Tasmania, Hohart, TAS, Australia
| | - A N Larcombe
- Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia.,Occupation and Environment, School of Public Health, Curtin University, Perth, WA, Australia
| | - F J Lannigan
- School of Paediatrics and Child Health, University of Western Australia, Nedlands, WA, Australia.,School of Medicine, Notre Dame University, Fremantle, WA, Australia
| | - K-M Ling
- Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia
| | - K M Martinovich
- Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia
| | - E Kicic-Starcevich
- Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia.,Department of Respiratory Medicine, Princess Margaret Hospital for Children, Perth, WA, Australia
| | - N C Shaw
- Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia
| | - E N Sutanto
- Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia.,Department of Respiratory Medicine, Princess Margaret Hospital for Children, Perth, WA, Australia
| | - D A Knight
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia.,Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, Newcastle, NSW, Australia.,Department of Anaesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - A Kicic
- School of Paediatrics and Child Health, University of Western Australia, Nedlands, WA, Australia.,Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia.,Centre for Cell Therapy and Regenerative Medicine, University of Western Australia, Nedlands, WA, Australia.,Occupation and Environment, School of Public Health, Curtin University, Perth, WA, Australia.,Department of Respiratory Medicine, Princess Margaret Hospital for Children, Perth, WA, Australia
| | - S M Stick
- School of Paediatrics and Child Health, University of Western Australia, Nedlands, WA, Australia.,Telethon Kids Institute, University of Western Australia, Subiaco, WA, Australia.,Centre for Cell Therapy and Regenerative Medicine, University of Western Australia, Nedlands, WA, Australia.,Department of Respiratory Medicine, Princess Margaret Hospital for Children, Perth, WA, Australia
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26
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Eichinger KM, Kosanovich JL, Empey KM. Localization of the T-cell response to RSV infection is altered in infant mice. Pediatr Pulmonol 2018; 53:145-153. [PMID: 29115050 PMCID: PMC5775046 DOI: 10.1002/ppul.23911] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 10/22/2017] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Respiratory syncytial virus (RSV) is a leading cause of lower respiratory tract infections worldwide, causing disproportionate morbidity and mortality in infants and children. Infants with stronger Th1 responses have less severe disease, yet little is known about the infant T-cell response within the air space. Thus, we tested the hypothesis that RSV infected infant mice would have quantitative and qualitative deficiencies in CD4+ and CD8+ T-cell populations isolated from the bronchoalveolar lavage when compared to adults and that local delivery of IFN-γ would increase airway CD4+ Tbet+ and CD8+ Tbet+ T-cell responses. METHODS We compared the localization of T-cell responses in RSV-infected infant and adult mice and investigated the effects of local IFN-γ administration on infant cellular immunity. RESULTS Adult CD8+ CD44HI and CD4+ CD44HI Tbet+ T-cells accumulated in the alveolar space whereas CD4+ CD44HI Tbet+ T-cells were evenly distributed between the infant lung tissue and airway and infant lungs contained higher frequencies of CD8+ T-cells. Delivery of IFN-γ to the infant airway failed to increase the accumulation of T-cells in the airspace and unexpectedly reduced CD4+ CD44HI Tbet+ T-cells. However, intranasal IFN-γ increased RSV F protein-specific CD8+ T-cells in the alveolar space. CONCLUSION Together, these data suggest that quantitative and qualitative defects exist in the infant T-cell response to RSV but early, local IFN-γ exposure can increase the CD8+ RSV-specific T-cell response.
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Affiliation(s)
- Katherine M Eichinger
- Department of Pharmacy and Therapeutics, University of Pittsburgh School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania.,Center for Clinical Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jessica L Kosanovich
- Department of Pharmacy and Therapeutics, University of Pittsburgh School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kerry M Empey
- Department of Pharmacy and Therapeutics, University of Pittsburgh School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania.,Center for Clinical Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Immunology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.,Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
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27
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Kwon JY, Huh JS, Je BK, Hong KD, Lee JH. Eosinophilic Gastrointestinal Disorder Presenting as Intractable Vomiting and Ascites in a Young Girl. Pediatr Gastroenterol Hepatol Nutr 2017; 20:198-203. [PMID: 29026737 PMCID: PMC5636937 DOI: 10.5223/pghn.2017.20.3.198] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 08/31/2016] [Accepted: 09/05/2016] [Indexed: 12/27/2022] Open
Abstract
Eosinophilic gastrointestinal disorder (EGID) is a rare disease in children that affects the bowel wall, with eosinophilic infiltration in the absence of any other causes for eosinophilia. The etiology remains unknown, but allergies and immunological imbalance are suspected triggers. We encountered a case of serosal EGID presenting as intractable vomiting and ascites in a 9-year-old girl, after influenza virus infection. Peripheral eosinophilia was not present. The diagnosis was confirmed by biopsy of the bowel wall through laparotomy and endoscopy, and controlled by 2 courses of steroid therapy due to recurring symptoms. Influenza virus infection was assumed to play a role in the onset of EGID through a Th2 response that stimulated eosinophilic infiltration in the GI tract. We therefore report this case along with a literature review.
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Affiliation(s)
- Ji Yoon Kwon
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
| | - Ji Sun Huh
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
| | - Bo Kyung Je
- Department of Radiology, Korea University College of Medicine, Seoul, Korea
| | - Kwang Dae Hong
- Department of Colorectal Surgery, Korea University College of Medicine, Seoul, Korea
| | - Jee Hyun Lee
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
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28
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Wu J, Xu L, Han X, Hu H, Qi F, Bai S, Chai R, Teng Y, Liu B. Role of γδ T cells in exacerbated airway inflammation during reinfection of neonatally primed mice in adulthood. J Med Virol 2017; 89:2108-2115. [PMID: 28815644 DOI: 10.1002/jmv.24914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 07/22/2017] [Indexed: 11/08/2022]
Abstract
Age at primary infection with respiratory syncytial virus (RSV) is a crucial factor in determining the outcome of reinfection. However, how neonatal RSV infection affects the immune system and renders the host more susceptible to reinfection in later life is poorly understood. In the present study, by using BALB/c mice that were first infected with RSV as neonates, the role of γδ T cells in the development of airway inflammation during reinfection in adulthood was investigated. We found that neonatal RSV infection resulted in an aggravated infiltration of mononuclear cells in bronchoalveolar lavage (BAL) fluids, in parallel with a significant increase in the levels of type 2 cytokines in lungs on day 4 after reinfection. Since the numbers of total γδ T cells as well as activated γδ T cells, particularly IL-4-, IL-5-, and IL-13-producing γδ T cells, were enhanced markedly in the lungs of neonatally primed mice, we speculate that γδ T cells might participate in the augmented airway inflammation seen during reinfection. Indeed, depletion of γδ T cells attenuated the severity of lung histopathology during reinfection. Meanwhile, treatment of neonatal mice with anti-TCRδ mAb diminished not only the numbers of neutrophils, eosinophils, and lymphocytes, but also the levels of IL-4, IL-5, and IL-13 in the lungs after reinfection in adulthood, suggesting that γδ T cells, particularly Th2-type γδ T cells might play a critical role in exacerbating the pulmonary tissue pathology during reinfection of adult mice that were first infected as neonates.
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Affiliation(s)
- Jianqi Wu
- Department of Neurosurgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Lei Xu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Xu Han
- Department of Medical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Haiyan Hu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Feifei Qi
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Song Bai
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Ruonan Chai
- The PLA Center of Respiratory and Allergic Disease Diagnosing Management, The General Hospital of Shenyang Military Command, Shenyang, China
| | - Yuee Teng
- Department of Medical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Beixing Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
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29
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Sánchez-García S, Habernau Mena A, Quirce S. Biomarkers in inflammometry pediatric asthma: utility in daily clinical practice. Eur Clin Respir J 2017; 4:1356160. [PMID: 28815006 PMCID: PMC5553097 DOI: 10.1080/20018525.2017.1356160] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 07/11/2017] [Indexed: 12/19/2022] Open
Abstract
Asthma is a common disease in both high and lower income countries that starts early and persists often for life. A correct and accurate diagnosis, treatment and follow-up during childhood are essential for a better understanding of adult asthma and avoiding over- or under-treatment. Th2 inflammation in children with asthma symptoms is usually assessed by measuring with serum total IgE, blood eosinophilia and FeNO levels that may help to predict asthma, particularly in those infants and young children in whom lung function tests are difficult to perform. FeNO measurement, compared to intra-individual levels, may be useful also for ascertaining treatment adherence. Nevertheless, an isolated measurement may be insufficient and only the combination of these markers improves the diagnosis, phenotyping and follow-up of an asthmatic child.
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Affiliation(s)
- Silvia Sánchez-García
- Allergy Section, Hospital Infantil Universitario Niño Jesús and Health Research Institute La Princesa, Madrid, Spain
| | | | - Santiago Quirce
- Department of Allergy, Hospital Universitario La Paz and CIBER of Respiratory Diseases (CIBERES), Madrid, Spain
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30
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Han X, Chai R, Qi F, Bai S, Cui Y, Teng Y, Liu B. Natural helper cells mediate respiratory syncytial virus-induced airway inflammation by producing type 2 cytokines in an IL-33-dependent manner. Immunotherapy 2017; 9:715-722. [PMID: 28771101 DOI: 10.2217/imt-2017-0037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
AIM Type 2 cytokine production during respiratory virus infection is considered to be linked with asthma exacerbation. As potent Th2 cytokine producers, natural helper (NH) cells play a key role in influenza virus-induced airway hyper-responsiveness. However, it is unclear whether NH cells contribute to respiratory syncytial virus (RSV)-induced airway inflammation, and how the cytokine profile in NH cells is changed during RSV infection. METHODS BALB/c mice were infected intranasally with RSV. The number of NH cells in lungs was detected by flow cytometry. The expression of cytokine mRNAs was performed by real-time RT-PCR. Cytokines levels were determined by ELISA. RESULTS Following intranasal infection with RSV, BALB/c mice showed an increase in the expression of mRNAs for Th2-like cytokines in NH cells. Furthermore, adoptive transfer of pulmonary NH cells resulted in a massive infiltration of mononuclear cells, in particular eosinophils and neutrophils in lungs, in parallel with an augmented production of Th2-associated cytokines, such as IL-4, IL-5 and IL-10 in bronchoalveolar lavage fluids, providing convincing evidence that NH cells contribute to RSV-induced lung pathogenesis by producing type 2 cytokines. It should be noted that blocking IL-33 with antibody can diminish the absolute number of pulmonary NH cells and the relative expression of mRNAs for type 2 cytokines in pulmonary NH cells, suggesting that IL-33 is necessary for activating Th2-type NH cells. CONCLUSION These results reveal that pulmonary NH cells might participate in RSV-induced airway inflammation by producing large quality of type 2 cytokines in an IL-33-dependent manner.
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Affiliation(s)
- Xu Han
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, PR China
| | - Ruonan Chai
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, PR China
| | - Feifei Qi
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, PR China
| | - Song Bai
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, PR China
| | - Yulin Cui
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, PR China
| | - Yuee Teng
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, PR China
| | - Beixing Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, PR China
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31
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Connors TJ, Ravindranath TM, Bickham KL, Gordon CL, Zhang F, Levin B, Baird JS, Farber DL. Airway CD8(+) T Cells Are Associated with Lung Injury during Infant Viral Respiratory Tract Infection. Am J Respir Cell Mol Biol 2017; 54:822-30. [PMID: 26618559 DOI: 10.1165/rcmb.2015-0297oc] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Infants and young children are disproportionately susceptible to severe complications from respiratory viruses, although the underlying mechanisms remain unknown. Recent studies show that the T cell response in the lung is important for protective responses to respiratory infections, although details on the infant/pediatric respiratory immune response remain sparse. The objectives of the present study were to characterize the local versus systemic immune response in infants and young children with respiratory failure from viral respiratory tract infections and its association to disease severity. Daily airway secretions were sampled from infants and children 4 years of age and younger receiving mechanical ventilation owing to respiratory failure from viral infection or noninfectious causes. Samples were examined for immune cell composition and markers of T cell activation. These parameters were then correlated with clinical disease severity. Innate immune cells and total CD3(+) T cells were present in similar proportions in airway aspirates derived from infected and uninfected groups; however, the CD8:CD4 T cell ratio was markedly increased in the airways of patients with viral infection compared with uninfected patients, and specifically in infected infants with acute lung injury. T cells in the airways were phenotypically and functionally distinct from those in blood with activated/memory phenotypes and increased cytotoxic capacity. We identified a significant increase in airway cytotoxic CD8(+) T cells in infants with lung injury from viral respiratory tract infection that was distinct from the T cell profile in circulation and associated with increasing disease severity. Airway sampling could therefore be diagnostically informative for assessing immune responses and lung damage.
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Affiliation(s)
- Thomas J Connors
- 1 Department of Pediatrics and.,2 Columbia Center for Translational Immunology, Columbia University Medical Center, New York, New York
| | | | - Kara L Bickham
- 2 Columbia Center for Translational Immunology, Columbia University Medical Center, New York, New York
| | - Claire L Gordon
- 2 Columbia Center for Translational Immunology, Columbia University Medical Center, New York, New York
| | - Feifan Zhang
- 3 Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York; and Departments of
| | - Bruce Levin
- 3 Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York; and Departments of
| | | | - Donna L Farber
- 2 Columbia Center for Translational Immunology, Columbia University Medical Center, New York, New York.,4 Surgery and.,5 Microbiology and Immunology, Columbia University Medical Center, New York, New York
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32
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Pulmonary immunity to viruses. Clin Sci (Lond) 2017; 131:1737-1762. [PMID: 28667071 DOI: 10.1042/cs20160259] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/31/2017] [Accepted: 04/06/2017] [Indexed: 12/28/2022]
Abstract
Mucosal surfaces, such as the respiratory epithelium, are directly exposed to the external environment and therefore, are highly susceptible to viral infection. As a result, the respiratory tract has evolved a variety of innate and adaptive immune defenses in order to prevent viral infection or promote the rapid destruction of infected cells and facilitate the clearance of the infecting virus. Successful adaptive immune responses often lead to a functional state of immune memory, in which memory lymphocytes and circulating antibodies entirely prevent or lessen the severity of subsequent infections with the same virus. This is also the goal of vaccination, although it is difficult to vaccinate in a way that mimics respiratory infection. Consequently, some vaccines lead to robust systemic immune responses, but relatively poor mucosal immune responses that protect the respiratory tract. In addition, adaptive immunity is not without its drawbacks, as overly robust inflammatory responses may lead to lung damage and impair gas exchange or exacerbate other conditions, such as asthma or chronic obstructive pulmonary disease (COPD). Thus, immune responses to respiratory viral infections must be strong enough to eliminate infection, but also have mechanisms to limit damage and promote tissue repair in order to maintain pulmonary homeostasis. Here, we will discuss the components of the adaptive immune system that defend the host against respiratory viral infections.
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33
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Abstract
The early stages of life are associated with increased susceptibility to infection, which is in part due to an ineffective immune system. In the context of infection, the immune system must be stimulated to provide efficient protection while avoiding insufficient or excessive activation. Yet, in early life, age-dependent immune regulation at molecular and cellular levels contributes to a reduced immunological fitness in terms of pathogen clearance and response to vaccines. To enable microbial colonization to be tolerated at birth, epigenetic immune cell programming and early life-specific immune regulatory and effector mechanisms ensure that vital functions and organ development are supported and that tissue damage is avoided. Advancement in our understanding of age-related remodelling of immune networks and the consequent tuning of immune responsiveness will open up new possibilities for immune intervention and vaccine strategies that are designed specifically for early life.
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34
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Shafique M, Rasool MH, Khurshid M. Respiratory syncytial virus: an overview of infection biology and vaccination strategies. Future Virol 2017. [DOI: 10.2217/fvl-2017-0120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Respiratory syncytial virus (RSV) is the foremost cause of lower respiratory tract infections, especially in infants and young children. To date, there is no licensed vaccine available for RSV. Only option to restrain RSV is a prophylactic treatment in the form of monoclonal antibody (palivizumab). However, it is quite expensive and used in few patients with co-morbidities. In ongoing research, virologists contemplate about various vaccine candidates to control RSV infection. This review will help in understating the RSV pathobiology and encompass the advancement on various vaccine candidates that would lead to reduce the incidence, mortality and morbidity. Furthermore, it will lighten up the different avenues which might be useful for the development of novel vaccination approaches.
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Affiliation(s)
- Muhammad Shafique
- Department of Microbiology, Government College University Faisalabad, Pakistan
| | | | - Mohsin Khurshid
- Department of Microbiology, Government College University Faisalabad, Pakistan
- College of Allied Health Professionals, Directorate of Medical Sciences, Government College University Faisalabad, Pakistan
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35
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Openshaw PJ, Chiu C, Culley FJ, Johansson C. Protective and Harmful Immunity to RSV Infection. Annu Rev Immunol 2017; 35:501-532. [DOI: 10.1146/annurev-immunol-051116-052206] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peter J.M. Openshaw
- Respiratory Infections, National Heart and Lung Institute, Imperial College London, London W2 1PG, United Kingdom
| | - Chris Chiu
- Respiratory Infections, National Heart and Lung Institute, Imperial College London, London W2 1PG, United Kingdom
| | - Fiona J. Culley
- Respiratory Infections, National Heart and Lung Institute, Imperial College London, London W2 1PG, United Kingdom
| | - Cecilia Johansson
- Respiratory Infections, National Heart and Lung Institute, Imperial College London, London W2 1PG, United Kingdom
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36
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Russell CD, Unger SA, Walton M, Schwarze J. The Human Immune Response to Respiratory Syncytial Virus Infection. Clin Microbiol Rev 2017; 30:481-502. [PMID: 28179378 PMCID: PMC5355638 DOI: 10.1128/cmr.00090-16] [Citation(s) in RCA: 230] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Respiratory syncytial virus (RSV) is an important etiological agent of respiratory infections, particularly in children. Much information regarding the immune response to RSV comes from animal models and in vitro studies. Here, we provide a comprehensive description of the human immune response to RSV infection, based on a systematic literature review of research on infected humans. There is an initial strong neutrophil response to RSV infection in humans, which is positively correlated with disease severity and mediated by interleukin-8 (IL-8). Dendritic cells migrate to the lungs as the primary antigen-presenting cell. An initial systemic T-cell lymphopenia is followed by a pulmonary CD8+ T-cell response, mediating viral clearance. Humoral immunity to reinfection is incomplete, but RSV IgG and IgA are protective. B-cell-stimulating factors derived from airway epithelium play a major role in protective antibody generation. Gamma interferon (IFN-γ) has a strongly protective role, and a Th2-biased response may be deleterious. Other cytokines (particularly IL-17A), chemokines (particularly CCL-5 and CCL-3), and local innate immune factors (including cathelicidins and IFN-λ) contribute to pathogenesis. In summary, neutrophilic inflammation is incriminated as a harmful response, whereas CD8+ T cells and IFN-γ have protective roles. These may represent important therapeutic targets to modulate the immunopathogenesis of RSV infection.
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Affiliation(s)
- Clark D Russell
- MRC Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Stefan A Unger
- Department of Child Life and Health, University of Edinburgh, Edinburgh, UK
| | - Marc Walton
- MRC Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Jürgen Schwarze
- MRC Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
- Department of Child Life and Health, University of Edinburgh, Edinburgh, UK
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Rey-Jurado E, Kalergis AM. Immunological Features of Respiratory Syncytial Virus-Caused Pneumonia-Implications for Vaccine Design. Int J Mol Sci 2017; 18:E556. [PMID: 28273842 PMCID: PMC5372572 DOI: 10.3390/ijms18030556] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 02/22/2017] [Accepted: 02/26/2017] [Indexed: 01/05/2023] Open
Abstract
The human respiratory syncytial virus (hRSV) is the causative agent for high rates of hospitalizations due to viral bronchiolitis and pneumonia worldwide. Such a disease is characterized by an infection of epithelial cells of the distal airways that leads to inflammation and subsequently to respiratory failure. Upon infection, different pattern recognition receptors recognize the virus and trigger the innate immune response against the hRSV. Further, T cell immunity plays an important role for virus clearance. Based on animal studies, it is thought that the host immune response to hRSV is based on a biased T helper (Th)-2 and Th17 T cell responses with the recruitment of T cells, neutrophils and eosinophils to the lung, causing inflammation and tissue damage. In contrast, human immunity against RSV has been shown to be more complex with no definitive T cell polarization profile. Nowadays, only a humanized monoclonal antibody, known as palivizumab, is available to protect against hRSV infection in high-risk infants. However, such treatment involves several injections at a significantly high cost. For these reasons, intense research has been focused on finding novel vaccines or therapies to prevent hRSV infection in the population. Here, we comprehensively review the recent literature relative to the immunological features during hRSV infection, as well as the new insights into preventing the disease caused by this virus.
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Affiliation(s)
- Emma Rey-Jurado
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8330644, Chile.
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8330644, Chile.
- Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 8330644, Chile.
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Wu J, Hu H, Xu L, Qi F, Bai S, Cui Y, Chai R, Wang D, Liu B. Natural helper cells are associated with the exacerbated airway inflammation seen during RSV reinfection of neonatally primed mice. Int Immunopharmacol 2017; 45:156-162. [PMID: 28219838 DOI: 10.1016/j.intimp.2017.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 02/10/2017] [Accepted: 02/11/2017] [Indexed: 11/26/2022]
Abstract
Infection with respiratory syncytial virus (RSV) in neonatal mice causes more aggressive airway disease when the mice are reinfected with the same virus as adults. However, the underlying mechanisms responsible for this phenomenon are not entirely defined. Natural helper (NH) cells are considered a key factor for virus-induced or exacerbated airway inflammation and airway hyper-responsiveness by producing type 2 cytokines. To confirm whether NH cells are involved in the aggravated lung pathology seen during reinfection, BALB/c mice were initially infected as neonates and reinfected in adulthood. We observed that neonatal RSV infection resulted in an enhanced infiltration of eosinophils and neutrophils in the lungs, in parallel with a significant increase in the levels of IL-5 and IL-13 in bronchoalveolar lavage fluids on day 2 after reinfection. It seems likely that pulmonary NH cells may play a role in the occurrence, since mice first infected at 1wk of age developed an additional increase in the number of NH cells as well as IL-5- and IL-13-producing NH cells in the lungs than those first infected as young adults. In fact, an elevated expression of mRNAs for IL-5 and IL-13 in pulmonary NH cells was detected in mice first infected as neonates. Furthermore, adoptive transfer of NH cells into neonatal mice was able to boost eosinophilic infiltration as well as the production of type 2 cytokines in the lungs after reinfection at adulthood. In contrast, the expression of mRNA for the type 1 cytokine IFN-γ was down-regulated markedly by adoptive transfer of NH cells. Thus, these results suggest that Th2-type NH cells may play a role in the exacerbated airway inflammation seen during RSV reinfection of neonatally primed mice.
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Affiliation(s)
- Jianqi Wu
- Department of Neurosurgery, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Haiyan Hu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Lei Xu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Feifei Qi
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Song Bai
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Yulin Cui
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Ruonan Chai
- The PLA Center of Respiratory and Allergic Disease Diagnosing Management, the General Hospital of Shenyang Military Command, Shenyang, China
| | - Dandan Wang
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Beixing Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China.
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Troy NM, Bosco A. Respiratory viral infections and host responses; insights from genomics. Respir Res 2016; 17:156. [PMID: 27871304 PMCID: PMC5117516 DOI: 10.1186/s12931-016-0474-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 11/10/2016] [Indexed: 01/23/2023] Open
Abstract
Respiratory viral infections are a leading cause of disease and mortality. The severity of these illnesses can vary markedly from mild or asymptomatic upper airway infections to severe wheezing, bronchiolitis or pneumonia. In this article, we review the viral sensing pathways and organizing principles that govern the innate immune response to infection. Then, we reconstruct the molecular networks that differentiate symptomatic from asymptomatic respiratory viral infections, and identify the underlying molecular drivers of these networks. Finally, we discuss unique aspects of the biology and pathogenesis of infections with respiratory syncytial virus, rhinovirus and influenza, drawing on insights from genomics.
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Affiliation(s)
- Niamh M Troy
- Telethon Kids Institute, The University of Western Australia, Subiaco, Australia
| | - Anthony Bosco
- Telethon Kids Institute, The University of Western Australia, Subiaco, Australia.
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Differential mucosal IL-10-induced immunoregulation of innate immune responses occurs in influenza infected infants/toddlers and adults. Immunol Cell Biol 2016; 95:252-260. [PMID: 27629065 DOI: 10.1038/icb.2016.91] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 08/23/2016] [Accepted: 09/07/2016] [Indexed: 01/17/2023]
Abstract
Young children (<5 years of age but especially those <2-year old) exhibit high rates of morbidity and frequently require hospitalizations due to complications from respiratory viral infections. This is also a population for which we understand less about how their unique level of immunological maturation affects their antiviral immune responses. However, we do know from prior studies that their T cells appear to apoptose in the lungs owing to limited interferon (IFN)γ autocrine signaling during infection. To begin to further understand additional limits, we utilized an infant/toddler murine model infected with influenza virus with an adult comparator. In our model, young mice exhibited lower interleukin (IL)-10+IFNγ+ co-producing CD4 T cells infiltrating the lungs that paralleled with a failed switch from an innate to adaptive immune response at the mid infection stage. Specifically, limited co-IL-10 production correlated with a lack of influenza-specific antibodies and subsequent complement receptor signaling (complement receptor type-1 related gene Y (CCRY)/p65) to the lung infiltrating CD4 T cells therefore limiting their IKAROs upregulation. Thus, limited IL-10 production appeared to diminish signaling to lung macrophages to stop accumulating late into infection. Taken together, our results suggest a novel role for complement mediated signaling in CD4 T cells with respect to IL-10 co-production. Furthermore, a subsequent failure to shift from the unfocused innate immune response to the specific adaptive responses may be a principle cause in the enhanced morbidity common in respiratory viral infection of young children.
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41
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Srinivasa BT, Restori KH, Shan J, Cyr L, Xing L, Lee S, Ward BJ, Fixman ED. STAT6 inhibitory peptide given during RSV infection of neonatal mice reduces exacerbated airway responses upon adult reinfection. J Leukoc Biol 2016; 101:519-529. [PMID: 27566834 DOI: 10.1189/jlb.4a0215-062rr] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 06/09/2016] [Accepted: 08/02/2016] [Indexed: 11/24/2022] Open
Abstract
Respiratory syncytial virus (RSV)-related hospitalization during infancy is strongly associated with the subsequent development of asthma. Early life RSV infection results in a Th2-biased immune response, which is also typical of asthma. Murine models of neonatal RSV infection have been developed to examine the possible contribution of RSV-driven Th2 responses to the development of airway hyper-responsiveness later in childhood. We have investigated the ability of a cell-penetrating STAT6 inhibitory peptide (STAT6-IP), when delivered selectively during neonatal RSV infection, to modify pathogenesis induced upon secondary RSV reinfection of adults 6 wk later. Neonatal STAT6-IP treatment inhibited the development of airway hyper-responsiveness (AHR) and significantly reduced lung eosinophilia and collagen deposition in adult mice following RSV reinfection. STAT6-IP-treated, RSV-infected neonates had reduced levels of both IL-4 and alternatively activated macrophages (AAMs) in the lungs. Our findings suggest that targeting STAT6 activity at the time of early-life RSV infection may effectively reduce the risk of subsequent asthma development.
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Affiliation(s)
- Bharat T Srinivasa
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; and
| | - Katherine H Restori
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; and
| | - Jichuan Shan
- Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Louis Cyr
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; and
| | - Li Xing
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; and
| | - Soojin Lee
- Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Brian J Ward
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; and
| | - Elizabeth D Fixman
- Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
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42
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Brouard J, Dupont C, Tran L, Ribault M, Vabret A. [Rhinovirus during childhood: Asthma at adolescence? The chicken or the egg causality dilemma]. Arch Pediatr 2016; 23:557-60. [PMID: 27021809 PMCID: PMC7133363 DOI: 10.1016/j.arcped.2016.02.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 02/23/2016] [Indexed: 11/27/2022]
Affiliation(s)
- J Brouard
- Service de pédiatrie médicale, CHU de Caen, avenue Côte-de-Nacre, 14033 Caen, France; EA 4655 U2RM, équipe E3 : « virologie respiratoire comparée », 14032 Caen, France.
| | - C Dupont
- Service de pédiatrie médicale, CHU de Caen, avenue Côte-de-Nacre, 14033 Caen, France
| | - L Tran
- Service de pédiatrie médicale, CHU de Caen, avenue Côte-de-Nacre, 14033 Caen, France
| | - M Ribault
- Service de pédiatrie médicale, CHU de Caen, avenue Côte-de-Nacre, 14033 Caen, France
| | - A Vabret
- Laboratoire de virologie, CHU de Caen, avenue Clemenceau, 14033 Caen, France; EA 4655 U2RM, équipe E3 : « virologie respiratoire comparée », 14032 Caen, France
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43
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Dosanjh A. Commentary: Blood Eosinophilia Is Associated with Unfavorable Hospitalization Outcomes in Children with Bronchiolitis. Front Pediatr 2016; 4:123. [PMID: 27965947 PMCID: PMC5127386 DOI: 10.3389/fped.2016.00123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 11/01/2016] [Indexed: 11/15/2022] Open
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44
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Lay MK, Bueno SM, Gálvez N, Riedel CA, Kalergis AM. New insights on the viral and host factors contributing to the airway pathogenesis caused by the respiratory syncytial virus. Crit Rev Microbiol 2015; 42:800-12. [PMID: 26119025 DOI: 10.3109/1040841x.2015.1055711] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The respiratory syncytial virus (RSV) is the most prevalent etiological agent of lower respiratory tract infections and the first cause of hospitalization in infants due to respiratory disease worldwide. However, efforts to develop safe and effective vaccines and antivirals have been challenged by an incomplete understanding of the RSV pathogenesis and the host immune response to RSV infection in the airways. Here, we discuss recent advances in understanding the interaction between RSV and the epithelium to induce pathogenesis in the airways, such as the role of the RSV NS2 protein in the airway epithelium, as well as the events involved in the RSV entry process. In addition, we summarize the cellular factors produced by airway epithelial cells (AECs) in response to RSV infection that lead to the activation of innate and adaptive immune responses, inducing lung inflammation and disease. Further, we discuss the possible contribution of a recently identified cytokine, thymic stromal lymphopoitein (TSLP), in the lung immunopathology caused by RSV.
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Affiliation(s)
- Margarita K Lay
- a Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas , Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile , Santiago , Chile
| | - Susan M Bueno
- a Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas , Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile , Santiago , Chile .,b INSERM U1064 , Nantes , France
| | - Nicolás Gálvez
- a Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas , Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile , Santiago , Chile
| | - Claudia A Riedel
- c Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas y Facultad de Medicina , Laboratorio de Biología Celular y Farmacología, Millennium Institute on Immunology and Immunotherapy, Universidad Andrés Bello , Santiago , Chile , and
| | - Alexis M Kalergis
- a Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas , Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile , Santiago , Chile .,b INSERM U1064 , Nantes , France .,d Departamento de Inmunología Clínica y Reumatología, Facultad de Medicina , Pontificia Universidad Católica de Chile , Santiago , Chile
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Ptaschinski C, Mukherjee S, Moore ML, Albert M, Helin K, Kunkel SL, Lukacs NW. RSV-Induced H3K4 Demethylase KDM5B Leads to Regulation of Dendritic Cell-Derived Innate Cytokines and Exacerbates Pathogenesis In Vivo. PLoS Pathog 2015; 11:e1004978. [PMID: 26083387 PMCID: PMC4470918 DOI: 10.1371/journal.ppat.1004978] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 05/26/2015] [Indexed: 12/22/2022] Open
Abstract
Respiratory syncytial virus (RSV) infection can result in severe disease partially due to its ability to interfere with the initiation of Th1 responses targeting the production of type I interferons (IFN) and promoting a Th2 immune environment. Epigenetic modulation of gene transcription has been shown to be important in regulating inflammatory pathways. RSV-infected bone marrow-derived DCs (BMDCs) upregulated expression of Kdm5b/Jarid1b H3K4 demethylase. Kdm5b-specific siRNA inhibition in BMDC led to a 10-fold increase in IFN-β as well as increases in IL-6 and TNF-α compared to control-transfected cells. The generation of Kdm5bfl/fl-CD11c-Cre+ mice recapitulated the latter results during in vitro DC activation showing innate cytokine modulation. In vivo, infection of Kdm5bfl/fl-CD11c-Cre+ mice with RSV resulted in higher production of IFN-γ and reduced IL-4 and IL-5 compared to littermate controls, with significantly decreased inflammation, IL-13, and mucus production in the lungs. Sensitization with RSV-infected DCs into the airways of naïve mice led to an exacerbated response when mice were challenged with live RSV infection. When Kdm5b was blocked in DCs with siRNA or DCs from Kdm5bfl/fl-CD11c-CRE mice were used, the exacerbated response was abrogated. Importantly, human monocyte-derived DCs treated with a chemical inhibitor for KDM5B resulted in increased innate cytokine levels as well as elicited decreased Th2 cytokines when co-cultured with RSV reactivated CD4+ T cells. These results suggest that KDM5B acts to repress type I IFN and other innate cytokines to promote an altered immune response following RSV infection that contributes to development of chronic disease.
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Affiliation(s)
- Catherine Ptaschinski
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Sumanta Mukherjee
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Martin L. Moore
- Department of Pediatrics, Emory University, and Children’s Healthcare of Atlanta, Atlanta, Georgia, United States of America
| | - Mareike Albert
- Biotech Research and Innovation Centre, Centre for Epigenetics, and Danish Stem Cell Center, University of Copenhagen, Copenhagen, Denmark
| | - Kristian Helin
- Biotech Research and Innovation Centre, Centre for Epigenetics, and Danish Stem Cell Center, University of Copenhagen, Copenhagen, Denmark
| | - Steven L. Kunkel
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Nicholas W. Lukacs
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail:
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Liu J, Wu J, Qi F, Zeng S, Xu L, Hu H, Wang D, Liu B. Natural helper cells contribute to pulmonary eosinophilia by producing IL-13 via IL-33/ST2 pathway in a murine model of respiratory syncytial virus infection. Int Immunopharmacol 2015; 28:337-43. [PMID: 26044350 DOI: 10.1016/j.intimp.2015.05.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 05/20/2015] [Accepted: 05/21/2015] [Indexed: 11/26/2022]
Abstract
It has been reported that natural helper cells, which are a non-T, non-B innate lymphoid cell type expressing c-Kit and ST2, mediate influenza-induced airway hyper-reactivity by producing substantial IL-13. However, little is known about natural helper cells for the development of RSV-induced airway inflammation, particularly eosinophilic infiltration. By using BALB/c mice that were infected intranasally with RSV, it became clear that infection with RSV can induce an increase in the absolute number of natural helper cells in the lungs of mice. It seems likely that these natural helper cells contribute to the massive eosinophilic infiltration in an IL-13-dependent manner. In fact, the number of IL-13-producing natural helper cells as well as the expression of IL-13 mRNA in natural helper cells was enhanced significantly during RSV infection, suggesting that natural helper cells might be cellular source of the Th2-type cytokine IL-13. Indeed, adoptive transfer of pulmonary natural helper cells augmented not only the production of IL-13 but also the infiltration of eosinophils in the lungs of transferred mice. Pulmonary natural helper cells can produce IL-13 following response to IL-33, which was increased markedly in the lungs of mice after intranasal RSV infection. The expression of IL-13 mRNA in pulmonary natural helper cells was up-regulated by in vitro IL-33 stimulation. Furthermore, blockade of IL-33 receptor subunit, ST2, diminished the frequency of IL-13-producing natural helper cells. Taken together, these results demonstrate that natural helper cells may play an important role in RSV-induced pulmonary eosinophilia by producing IL-13 via the IL-33/ST2 pathway.
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Affiliation(s)
- Jing Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Jianqi Wu
- Batch 2011 of Clinical Medicine, Harbin Medical University, Harbin, China
| | - Feifei Qi
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Sheng Zeng
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Lei Xu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Haiyan Hu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Dandan Wang
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - Beixing Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China.
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47
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48
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Walsh EE, Hall CB. Respiratory Syncytial Virus (RSV). MANDELL, DOUGLAS, AND BENNETT'S PRINCIPLES AND PRACTICE OF INFECTIOUS DISEASES 2015. [PMCID: PMC7173590 DOI: 10.1016/b978-1-4557-4801-3.00160-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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49
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Rossi GA, Colin AA. Infantile respiratory syncytial virus and human rhinovirus infections: respective role in inception and persistence of wheezing. Eur Respir J 2014; 45:774-89. [PMID: 25359340 DOI: 10.1183/09031936.00062714] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
There is evidence that respiratory viruses play a key role in the development and exacerbation of obstructive respiratory diseases in children. This review attempts to juxtapose the separate profiles and prototypes of pathogenetic mechanisms represented by the two most common amongst such viruses: respiratory syncytial virus (RSV) and human rhinovirus (HRV). RSV represents the most common agent of severe airway disease in infants and young children, and is predominant in winter months. Large epidemiological studies have revealed an unequivocal relationship between RSV infection and subsequent wheezing into childhood, thought to be related to long-term changes in neuroimmune control of the airways rather than allergic sensitisation. HRV is a highly diverse group of viruses that affect subjects of all ages, is ubiquitous and occurs year-round. In contrast to RSV, infections with HRV cause minimal cytotoxicity but induce a rapid production of cytokines and chemokines with amplification of the inflammatory response. The susceptibility to HRV-induced bronchiolitis and subsequent wheezing appears to be linked to individual predisposition since it is often associated with a family or personal history of asthma/atopy. Thus, RSV probably serves as an "inducer" rather than a "trigger". Conversely, HRVs seem to serve as a "trigger" rather than an "inducer" in predisposed individuals.
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Affiliation(s)
- Giovanni A Rossi
- Pulmonary and Allergy Disease Paediatric Unit, Istituto Giannina Gaslini, Genoa, Italy
| | - Andrew A Colin
- Division of Pediatric Pulmonology, Miller School of Medicine, University of Miami, Miami, FL, USA
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50
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Lambert L, Sagfors AM, Openshaw PJM, Culley FJ. Immunity to RSV in Early-Life. Front Immunol 2014; 5:466. [PMID: 25324843 PMCID: PMC4179512 DOI: 10.3389/fimmu.2014.00466] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 09/12/2014] [Indexed: 02/01/2023] Open
Abstract
Respiratory Syncytial Virus (RSV) is the commonest cause of severe respiratory infection in infants, leading to over 3 million hospitalizations and around 66,000 deaths worldwide each year. RSV bronchiolitis predominantly strikes apparently healthy infants, with age as the principal risk factor for severe disease. The differences in the immune response to RSV in the very young are likely to be key to determining the clinical outcome of this common infection. Remarkable age-related differences in innate cytokine responses follow recognition of RSV by numerous pattern recognition receptors, and the importance of this early response is supported by polymorphisms in many early innate genes, which associate with bronchiolitis. In the absence of strong, Th1 polarizing signals, infants develop T cell responses that can be biased away from protective Th1 and cytotoxic T cell immunity toward dysregulated, Th2 and Th17 polarization. This may contribute not only to the initial inflammation in bronchiolitis, but also to the long-term increased risk of developing wheeze and asthma later in life. An early-life vaccine for RSV will need to overcome the difficulties of generating a protective response in infants, and the proven risks associated with generating an inappropriate response. Infantile T follicular helper and B cell responses are immature, but maternal antibodies can afford some protection. Thus, maternal vaccination is a promising alternative approach. However, even in adults adaptive immunity following natural infection is poorly protective, allowing re-infection even with the same strain of RSV. This gives us few clues as to how effective vaccination could be achieved. Challenges remain in understanding how respiratory immunity matures with age, and the external factors influencing its development. Determining why some infants develop bronchiolitis should lead to new therapies to lessen the clinical impact of RSV and aid the rational design of protective vaccines.
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Affiliation(s)
- Laura Lambert
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Agnes M. Sagfors
- National Heart and Lung Institute, Imperial College London, London, UK
| | | | - Fiona J. Culley
- National Heart and Lung Institute, Imperial College London, London, UK
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