1
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Zheng Y, Chen Q, Shi X, Lei L, Wang D. Causality between various cytokines and asthma: a bidirectional two-sample Mendelian randomization analysis. Front Med (Lausanne) 2024; 11:1447673. [PMID: 39175819 PMCID: PMC11338859 DOI: 10.3389/fmed.2024.1447673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 07/29/2024] [Indexed: 08/24/2024] Open
Abstract
Background Many studies have shown that cytokines play an important role in the pathogenesis of asthma, but their biological effects on asthma remain unclear. The Mendelian randomization (MR) method was used to evaluate the causal relationship between various cytokines [such as interleukins (ILs), interferons (IFNs), tumor necrosis factors (TNFs), colony-stimulating factors (CSFs), transforming growth factor (TGF), etc.,] and asthma. Methods In this study, inverse variance weighting was used to evaluate the causal relationship between asthma and cytokines. In addition, the reliability of the results is ensured by multiple methods such as MR-Egger, weighted median, MR-Raps, MR-Presso, and RadialMR, as well as sensitivity analysis. Results The results showed that none of the 11 cytokines was associated with the risk of asthma. In contrast, asthma can increase levels of IL-5 [odds ratio (OR) = 1.112, 95% confidence interval (CI): 1.009-1.224, P = 0.032] and IL-9 (OR = 1.111, 95% CI: 1.013-1.219, P = 0.025). Conclusion Genetically predicted asthma was positively associated with elevated levels of IL-5 and IL-9, indicating the downstream effects of IL-5 and IL-9 on asthma. Medical treatments can thus be designed to target IL-5 and IL-9 to prevent asthma exacerbations.
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Affiliation(s)
- Yansen Zheng
- Medical School, Huanghe Science and Technology College, Zhengzhou, China
| | - Qi Chen
- Jice Medical Institute, Xi’an, Shaanxi, China
| | - Xiaqing Shi
- Jice Medical Institute, Xi’an, Shaanxi, China
| | - Lei Lei
- Jice Medical Institute, Xi’an, Shaanxi, China
| | - Donglin Wang
- Medical School, Huanghe Science and Technology College, Zhengzhou, China
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2
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Kowalczyk T, Sitarek P, Śliwiński T, Hatziantoniou S, Soulintzi N, Pawliczak R, Wieczfinska J. New Data on Anti-Inflammatory and Wound Healing Potential of Transgenic Senna obtusifolia Hairy Roots: In Vitro Studies. Int J Mol Sci 2023; 24:ijms24065906. [PMID: 36982980 PMCID: PMC10056933 DOI: 10.3390/ijms24065906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/11/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Asthma is an inflammatory disease whose etiology remains unclear. Its characteristics encompass a wide range of clinical symptoms, inflammatory processes, and reactions to standard therapies. Plants produce a range of constitutive products and secondary metabolites that may have therapeutic abilities. The aim of this study was to determine the effects of Senna obtusifolia transgenic hairy root extracts on virus-induced airway remodeling conditions. Three cell lines were incubated with extracts from transformed (SOA4) and transgenic (SOPSS2, with overexpression of the gene encoding squalene synthase 1) hairy roots of Senna obtusifolia in cell lines undergoing human rhinovirus-16 (HRV-16) infection. The effects of the extracts on the inflammatory process were determined based on the expression of inflammatory cytokines (IL-8, TNF-α, IL-1α and IFN-γ) and total thiol content. The transgenic Senna obtusifolia root extract reduced virus-induced expression of TNF, IL-8 and IL-1 in WI-38 and NHBE cells. The SOPSS2 extract reduced IL-1 expression only in lung epithelial cells. Both tested extracts significantly increased the concentration of thiol groups in epithelial lung cells. In addition, the SOPPS2 hairy root extract yielded a positive result in the scratch test. SOA4 and SOPPS2 Senna obtusifolia hairy root extracts demonstrated anti-inflammatory effects or wound healing activity. The SOPSS2 extract had stronger biological properties, which may result from a higher content of bioactive secondary metabolites.
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Affiliation(s)
- Tomasz Kowalczyk
- Department of Molecular Biotechnology and Genetics, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Przemysław Sitarek
- Department of Biology and Pharmaceutical Botany, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland
| | - Tomasz Śliwiński
- Laboratory of Medical Genetics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Sophia Hatziantoniou
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, University of Patras, 26504 Patras, Greece
| | - Nikolitsa Soulintzi
- Laboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, University of Patras, 26504 Patras, Greece
| | - Rafal Pawliczak
- Department of Immunopathology, Medical University of Lodz, Zeligowskiego 7/9, Bldg 2, Rm 177, 90-752 Lodz, Poland
| | - Joanna Wieczfinska
- Department of Immunopathology, Medical University of Lodz, Zeligowskiego 7/9, Bldg 2, Rm 177, 90-752 Lodz, Poland
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3
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Wang W, Sinha A, Lutter R, Yang J, Ascoli C, Sterk PJ, Nemsick NK, Perkins DL, Finn PW. Analysis of Exosomal MicroRNA Dynamics in Response to Rhinovirus Challenge in a Longitudinal Case-Control Study of Asthma. Viruses 2022; 14:v14112444. [PMID: 36366542 PMCID: PMC9695046 DOI: 10.3390/v14112444] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/19/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022] Open
Abstract
Asthma symptoms are often exacerbated by the common-cold-causing rhinovirus (RV). In this study, we characterized the temporal behavior of circulating exosomal microRNAs (ExoMiRNAs) in a longitudinal bi-phasic case-control study of mild asthmatics (n = 12) and matched non-atopic healthy controls (n = 12) inoculated with rhinovirus. We aimed to define clinical and immunologic characteristics associated with differentially expressed (DE) miRNAs. In total, 26 DE ExoMiRNAs, including hsa-let-7f-5p, hsa-let-7a-5p, hsa-miR-122-5p, hsa-miR-101-3p, and hsa-miR-126-3p, were identified between asthmatic and healthy subjects after inoculation with RV. Time series clustering identified a unique Cluster of Upregulated DE ExoMiRNAs with augmenting mean expression and a distinct Cluster of Downregulated DE ExoMiRNAs with mean expression decline in asthmatic subjects upon RV challenge. Notably, the Upregulated Cluster correlated with Th1 and interferon-induced cytokines/chemokines (IFN-γ and IFN-γ-inducible protein-10) and interleukin-10 (IL-10). Conversely, the Downregulated Cluster correlated with IL-13, a Th2 cytokine, pulmonary function measurements (FVC%, FEV1%, and PEF%), and inflammatory biomarkers (FeNO, eosinophil%, and neutrophil%). Key ExoMiRNA-target gene and anti-viral defense mechanisms of the Upregulated and Downregulated Clusters were identified by network and gene enrichment analyses. Our findings provide insight into the regulatory role of ExoMiRNAs in RV-induced asthma.
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Affiliation(s)
- Wangfei Wang
- Richard and Loan Hill Department of Biomedical Engineering, College of Engineering and Medicine, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Anirban Sinha
- Department of Pulmonary Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Department of Experimental Immunology, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - René Lutter
- Department of Pulmonary Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Department of Experimental Immunology, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Jie Yang
- Department of Mathematics, Statistics, and Computer Science, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Christian Ascoli
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Peter J. Sterk
- Department of Pulmonary Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Nicole K. Nemsick
- Department of Molecular and Cellular Biology, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - David L. Perkins
- Division of Nephrology, Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Patricia W. Finn
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
- Correspondence:
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4
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Dodi G, Attanasi M, Di Filippo P, Di Pillo S, Chiarelli F. Virome in the Lungs: The Role of Anelloviruses in Childhood Respiratory Diseases. Microorganisms 2021; 9:microorganisms9071357. [PMID: 34201449 PMCID: PMC8307813 DOI: 10.3390/microorganisms9071357] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/24/2022] Open
Abstract
More recently, increasing attention has been directed to exploring the function of the global virome in health and disease. Currently, by new molecular techniques, such as metagenomic DNA sequencing, the virome has been better unveiled. By investigating the human lung virome, we could provide novel insights into respiratory diseases. The virome, as a part of the microbiome, is characterized by a constant change in composition related to the type of diet, environment, and our genetic code, and other incalculable factors. The virome plays a substantial role in modulating human immune defenses and contributing to the inflammatory processes. Anelloviruses (AVs) are new components of the virome. AVs are already present during early life and reproduce without apparently causing harm to the host. The role of AVs is still unknown, but several reports have shown that AVs could activate the inflammasomes, intracellular multiprotein oligomers of the innate immune system, which show a crucial role in the host defense to several pathogens. In this narrative revision, we summarize the epidemiological data related to the possible link between microbial alterations and chronic respiratory diseases in children. Briefly, we also describe the characteristics of the most frequent viral family present in the lung virome, Anelloviridae. Furthermore, we discuss how AVs could modulate the immune system in children, affecting the development of chronic respiratory diseases, particularly asthma, the most common chronic inflammatory disease in childhood.
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5
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Anderson D, Jones AC, Gaido CM, Carter KW, Laing IA, Bosco A, Thomas WR, Hales BJ. Differential Gene Expression of Lymphocytes Stimulated with Rhinovirus A and C in Children with Asthma. Am J Respir Crit Care Med 2020; 202:202-209. [PMID: 32142615 DOI: 10.1164/rccm.201908-1670oc] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Rationale: Individuals with asthma have heightened antibody responses to rhinoviruses (RVs), although those specific for RV-C are lower than responses specific for RV-A, suggesting poor immunity to this species.Objectives: To ascertain and compare T-cell memory responses induced by RV-A and RV-C in children with and without asthma.Methods: Peripheral blood mononuclear cells from 17 children with asthma and 19 control subjects without asthma were stimulated in vitro with peptide formulations to induce representative species-specific responses to RV-A and RV-C. Molecular profiling (RNA sequencing) was used to identify enriched pathways and upstream regulators.Measurements and Main Results: Responses to RV-A showed higher expression of IFNG and STAT1 compared with RV-C, and significant expression of CXCL9, 10, and 11 was not found for RV-C. There was no reciprocal increase of T-helper cell type 2 (Th2) cytokine genes or the Th2 chemokine genes CCL11, CCL17, and CCL22. RV-C induced higher expression of CCL24 (eotaxin-2) than RV-A in the responses of children with and without asthma. Upstream regulator analysis showed both RV-A and, although to a lesser extent, RV-C induced predominant Th1 and inflammatory cytokine expression. The responses of children with asthma compared with those without asthma were lower for both RV-A and RV-C while retaining the pattern of gene expression and upstream regulators characteristic of each species. All groups showed activation of the IL-17A pathway.Conclusions: RV-C induced memory cells with a lower IFN-γ-type response than RV-A without T-helper cell type 2 (Th2) upregulation. Children with asthma had lower recall responses than those without asthma while largely retaining the same gene activation profile for each species. RV-A and RV-C, therefore, induce qualitatively different T-cell responses.
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Affiliation(s)
| | | | - Cibele M Gaido
- Telethon Kids Institute and.,School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | | | - Ingrid A Laing
- Telethon Kids Institute and.,School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
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6
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Vanders RL, Hsu A, Gibson PG, Murphy VE, Wark PAB. Nasal epithelial cells to assess in vitro immune responses to respiratory virus infection in pregnant women with asthma. Respir Res 2019; 20:259. [PMID: 31747925 PMCID: PMC6865028 DOI: 10.1186/s12931-019-1225-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 10/29/2019] [Indexed: 01/01/2023] Open
Abstract
Respiratory virus-induced asthma exacerbations occur frequently during pregnancy and are associated with adverse outcomes for mother and child. Primary nasal epithelial cells (pNECs) provide a useful method to study immune responses in pregnancy. pNECs were obtained by nasal brushings from pregnant and non-pregnant women with and without asthma. pNECS were infected in vitro with major group Rhinovirus 43 (RV43) and seasonal influenza (H3N2). Following infection, pNECs showed measurable quantities of interferon (IFN)-λ, IL-1β, IL-8, IP-10 and MIP1-α. pNECs provide a safe and effective method for studying respiratory epithelial cell responses during pregnancy.
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Affiliation(s)
- Rebecca L Vanders
- Priority Research Centre for Healthy Lungs, The University of Newcastle, Newcastle, NSW, Australia. .,Viruses, Infection & Immunity, Vaccines & Asthma (VIVA), Hunter Medical Research Institute, Newcastle, NSW, Australia.
| | - Alan Hsu
- Priority Research Centre for Healthy Lungs, The University of Newcastle, Newcastle, NSW, Australia.,Viruses, Infection & Immunity, Vaccines & Asthma (VIVA), Hunter Medical Research Institute, Newcastle, NSW, Australia
| | - Peter G Gibson
- Priority Research Centre for Healthy Lungs, The University of Newcastle, Newcastle, NSW, Australia.,The Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, NSW, Australia
| | - Vanessa E Murphy
- Viruses, Infection & Immunity, Vaccines & Asthma (VIVA), Hunter Medical Research Institute, Newcastle, NSW, Australia.,Priority Research Centre GrowUpWell™, The University of Newcastle, Callaghan, NSW, 2305, Australia
| | - Peter A B Wark
- Priority Research Centre for Healthy Lungs, The University of Newcastle, Newcastle, NSW, Australia.,The Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, NSW, Australia
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7
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Liu H, Tan J, Liu J, Feng H, Pan D. Altered mast cell activity in response to rhinovirus infection provides novel insight into asthma. J Asthma 2019; 57:459-467. [PMID: 30882256 DOI: 10.1080/02770903.2019.1585870] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: Human rhinoviruses (RVs) are a type of common respiratory virus capable of inducing an asthma attack. Although mast cells are important effector cells involved in allergic disease, little is known about the direct effects of an RV infection on mast cells. The aim of this study is to investigate mast cell behavior in response to RV infection and gain insight into the effects of RVs on mast cells. Methods: Viral replication, cell viability, apoptosis and cytokine release were quantified in Human mast cell-1 (HMC-1) cells following RV16 infection. Results: The results revealed that the viral RNA copy number increased substantially over time. Intercellular cell adhesion molecule-1 (ICAM-1) transcripts were significantly upregulated from 1.79 to 6.37 times following RV16 infection compared to the controls (p ≤ 0.05). Lactate dehydrogenase (LDH) activity was significantly increased, whereas the cell viability decreased following RV16 infection. Examination of the early cellular response to infection revealed that RV16 increased caspase 3 activity and aggravated apoptotic responses. Furthermore, detection of the innate immune response to RV infection revealed that the release of IL-6, IL-8, TNF-α, and IFN-α by HMC-1 cells increased significantly compared to the control groups. Conclusions: RV infection influences mast cell functionality and promotes the innate immune response of mast cells following viral infection. These results provide a novel insight which mast cells have the potential to be involved in the pathogenesis of RV-induced exacerbations of asthma.
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Affiliation(s)
- Haiwen Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jingyu Tan
- Department of Stomatology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jingfang Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Huiquan Feng
- Department of Respiratory Medicine, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Dianzhu Pan
- Department of Respiratory Medicine, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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8
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Jurak LM, Xi Y, Landgraf M, Carroll ML, Murray L, Upham JW. Interleukin 33 Selectively Augments Rhinovirus-Induced Type 2 Immune Responses in Asthmatic but not Healthy People. Front Immunol 2018; 9:1895. [PMID: 30174671 PMCID: PMC6108046 DOI: 10.3389/fimmu.2018.01895] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 07/31/2018] [Indexed: 11/13/2022] Open
Abstract
Interleukin- 33 (IL-33) is an epithelial-derived cytokine that initiates type 2 immune responses to allergens, though whether IL-33 has the ability to modify responses to respiratory viral infections remains unclear. This study aimed to investigate the effects of IL-33 on rhinovirus (RV)-induced immune responses by circulating leukocytes from people with allergic asthma, and how this response may differ from non-allergic controls. Our experimental approach involved co-exposing peripheral blood mononuclear cells to IL-33 and RV in order to model how the functions of virus-responsive lymphocytes could be modified after recruitment to an airway environment enriched in IL-33. In the current study, IL-33 enhanced RV-induced IL-5 and IL-13 release by cells from people with allergic asthma, but had no effect on IL-5 and IL-13 production by cells from healthy donors. In asthmatic individuals, IL-33 also enhanced mRNA and surface protein expression of ST2 (the IL-33 receptor IL1RL1), while soluble ST2 concentrations were low. In contrast, IL-33 had no effect on mRNA and surface expression of ST2 in healthy individuals. In people with allergic asthma, RV-activated ST2+ innate lymphoid cells (ST2+ILC) were the predominant source of IL-33 augmented IL-13 release. In contrast, RV-activated natural killer cells (NK cells) were the predominant source of IL-33 augmented IFNγ release in healthy individuals. This suggests that the effects of IL-33 on the cellular immune response to RV differ between asthmatic and healthy individuals. These findings provide a mechanism by which RV infections and IL-33 might interact in asthmatic individuals to exacerbate type 2 immune responses and allergic airway inflammation.
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Affiliation(s)
- Lisa M Jurak
- Lung and Allergy Research Centre, Diamantina Institute, University of Queensland, Woolloongabba, QLD, Australia
| | - Yang Xi
- Lung and Allergy Research Centre, Diamantina Institute, University of Queensland, Woolloongabba, QLD, Australia
| | - Megan Landgraf
- Lung and Allergy Research Centre, Diamantina Institute, University of Queensland, Woolloongabba, QLD, Australia
| | - Melanie L Carroll
- Lung and Allergy Research Centre, Diamantina Institute, University of Queensland, Woolloongabba, QLD, Australia
| | - Liisa Murray
- Lung and Allergy Research Centre, Diamantina Institute, University of Queensland, Woolloongabba, QLD, Australia
| | - John W Upham
- Lung and Allergy Research Centre, Diamantina Institute, University of Queensland, Woolloongabba, QLD, Australia.,Department of Respiratory Medicine, Princess Alexandra Hospital, Brisbane, QLD, Australia
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9
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Huang W, Li ML, Xia MY, Shao JY. Fisetin-treatment alleviates airway inflammation through inhbition of MyD88/NF-κB signaling pathway. Int J Mol Med 2018; 42:208-218. [PMID: 29568921 PMCID: PMC5979929 DOI: 10.3892/ijmm.2018.3582] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/31/2018] [Indexed: 11/23/2022] Open
Abstract
Asthma is a common chronic airway inflammation disease and is considered as a major public health problem. Fisetin (3,3′,4′,7-tetrahydroxyflavone) is a naturally occurring flavonoid abundantly found in different vegetables and fruits. Fisetin has been reported to exhibit various positive biological effects, including anti-proliferative, anticancer, anti-oxidative and neuroprotective effects. We evaluated the effects of fisetin on allergic asthma regulation in mice. Mice were first sensi-tized, then airway-challenged with ovalbumin (OVA). Whether fisetin treatment attenuated OVA-induced airway inflammation was examined via inflammation inhibition through MyD88-related NF-κB (p65) signaling pathway. Mice were divided into the control (Con), OVA-induced asthma (Mod), 40 (FL) and 50 (FH) mg/kg fisetin-treated OVA-induced asthma groups. Our results found that OVA-induced airway inflammation in mice caused a significant inflammatory response via the activation of MyD88 and NF-κB signaling pathways, leading to release of pro-inflammatory cytokines. In contrast, fisetin-treated mice after OVA induction inhibited activation of MyD88 and NF-κB signaling pathways, resulting in downregulation of pro-inflammatory cytokine secretion. Further, fisetin significantly ameliorated the airway hyperresponsiveness (AHR) towards methacholine (Mch). In addition, fisetin reduced the number of eosinophil, monocyte, neutrophil and total white blood cell in the bronchoalveolar lavage fluid (BALF) of OVA-induced mice. The serum and BALF samples obtained from the OVA-induced mice with fisetin showed lower levels of pro-inflammatory cytokines. The results of our study illustrated that fisetin may be a new promising candidate to inhibit airway inflammation response induced by OVA.
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Affiliation(s)
- Wei Huang
- Department of Pediatrics, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei 066000, P.R. China
| | - Ming-Li Li
- Department of Pediatrics, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei 066000, P.R. China
| | - Ming-Yue Xia
- Department of Pediatrics, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei 066000, P.R. China
| | - Jian-Ying Shao
- Department of Pediatrics, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei 066000, P.R. China
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10
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Kuo CH, Yang SN, Tsai YG, Hsieh CC, Liao WT, Chen LC, Lee MS, Kuo HF, Lin CH, Hung CH. Long-acting β2-adrenoreceptor agonists suppress type 1 interferon expression in human plasmacytoid dendritic cells via epigenetic regulation. Pulm Pharmacol Ther 2017; 48:37-45. [PMID: 28987803 DOI: 10.1016/j.pupt.2017.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 10/01/2017] [Accepted: 10/03/2017] [Indexed: 01/01/2023]
Abstract
The combination of inhaled long-acting β2-adrenoreceptor (LABA) and inhaled glucocorticoid (ICS) is a major therapy for asthma. However, the increased risk of infection is still a concern. Plasmacytoid dendritic cells (pDCs) are the predominant cells producing type 1 interferon (IFN) against infection. The effect of LABA/ICS on type 1 IFN expression in human pDCs is unknown. Circulating pDCs were isolated from healthy human subjects and were pretreated with glucocorticoid (GCS), LABA or a cAMP analog, and were stimulated with Toll-like receptor (TLR) agonist CpG (TLR9) or imiquimod (TLR7) in the presence of IL-3. The expression of type 1 IFN (IFN-α/β) were measured by ELISA. The mechanisms were investigated using receptor antagonists, pathway inhibitors, Western blotting and chromatin immunoprecipitation. GCS suppressed TLR-induced IFN-α expression, and LABA enhanced the suppressive effect. LABA alone also suppressed TLR-induced IFN-α/β expression, and the effect was reversed by the β2-adrenoreceptor antagonist ICI118551. Dibutyryl-cAMP, a cAMP analog, conferred a similar suppressive effect, and the effect was abrogated by the exchange protein directly activated by cAMP (Epac) inhibitor HJC0197 or intracellular free Ca2+ chelator BAPTA-AM. Formoterol suppressed TLR-induced phosphorylation of mitogen-activated protein kinase (MAPK)-p38/ERK. Formoterol suppressed interferon regulatory factor (IRF)-3/IRF-7 expression. Formoterol suppressed CpG-induced translocation of H3K4 specific methyltransferase WDR5 and suppressed H3K4 trimethylation in the IFNA and IFNB gene promoter region. LABA suppressed TLR7/9-induced type 1 IFNs production, at least partly, via the β2-adrenoreceptor-cAMP-Epac-Ca2+, IRF-3/IRF-7, the MAPK-p38/ERK pathway, and epigenetic regulation by suppressing histone H3K4 trimethylation through inhibiting the translocation of WDR5 from cytoplasm to nucleus. LABA may interfere with anti-viral immunity.
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Affiliation(s)
- Chang-Hung Kuo
- Ta-Kuo Clinic, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - San-Nan Yang
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan; Department of Pediatrics, E-DA Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Yi-Giien Tsai
- Department of Pediatrics, Changhua Christian Children's Hospital, Changhua, Taiwan; School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chong-Chao Hsieh
- Division of Cardiovascular Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Wei-Ting Liao
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Li-Chen Chen
- The Division of Allergy, Asthma and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Min-Sheng Lee
- Department of Pediatrics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsuan-Fu Kuo
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Ching-Hsiung Lin
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan; Division of Chest Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Chih-Hsing Hung
- School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan; Research Center of Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Fujimoto Y, Hasegawa S, Matsushige T, Wakiguchi H, Nakamura T, Hasegawa H, Nakajima N, Ainai A, Oga A, Itoh H, Shirabe K, Toda S, Atsuta R, Morishima T, Ohga S. Pulmonary inflammation and cytokine dynamics of bronchoalveolar lavage fluid from a mouse model of bronchial asthma during A(H1N1)pdm09 influenza infection. Sci Rep 2017; 7:9128. [PMID: 28831046 PMCID: PMC5567326 DOI: 10.1038/s41598-017-08030-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 07/06/2017] [Indexed: 12/28/2022] Open
Abstract
Asthmatic patients present more rapid progression of respiratory distress after A(H1N1)pdm09 influenza infection than after seasonal infection. Here, we sought to clarify the pathophysiology of early deterioration in asthmatic patients after A(H1N1)pdm09 infection. Cytokine levels and virus titres in bronchoalveolar lavage fluid from mice with and without asthma after A(H1N1)pdm09 or seasonal H1N1 infection were examined. In asthma/A(H1N1)pdm09 mice, IL-6 and TNF-α levels peaked at 3 days post-infection and were higher than those in all other groups. IFN-γ levels in asthma/A(H1N1)pdm09 mice at 3 days post-infection were higher than in all other mice at any time point, whereas at 7 days post-infection, the levels were lowest in asthma/A(H1N1)pdm09 mice. Virus titres in asthma/A(H1N1)pdm09 mice were highest at 3 days post-infection, and decreased by 7 days post-infection, although the levels at this time point were still higher than that in any other group. Histopathological examination showed more inflammatory cell infiltration and lung tissue destruction in the asthma/A(H1N1)pdm09 group than in any other group. The distinct cytokine profiles in A(H1N1)pdm09-infected asthmatic mice indicated excessive inflammation and virus replication within a few days after infection. Thus, bronchial asthma could be a more exacerbating factor for pandemic influenza infection than for seasonal influenza infection.
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Affiliation(s)
- Yousuke Fujimoto
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Shunji Hasegawa
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Takeshi Matsushige
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Hiroyuki Wakiguchi
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Tamaki Nakamura
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Hideki Hasegawa
- Department of Pathology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Noriko Nakajima
- Department of Pathology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Akira Ainai
- Department of Pathology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Atsunori Oga
- Department of Pathology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Hiroshi Itoh
- Department of Pathology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Komei Shirabe
- Yamaguchi Prefectural Institute of Public Health and Environment, 2-5-67 Aoi, Yamaguchi, 753-0821, Japan
| | - Shoichi Toda
- Yamaguchi Prefectural Institute of Public Health and Environment, 2-5-67 Aoi, Yamaguchi, 753-0821, Japan
| | - Ryo Atsuta
- Depertment of Respiratory Medicine, Juntendo Tokyo Koto Geriatric Medical Center, 3-3-20 Shinsuna, Koto-ku, Tokyo, 136-0075, Japan
| | - Tsuneo Morishima
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
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12
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Pang LL, Yuan XH, Shao CS, Li MZ, Wang Y, Wang HM, Xie GC, Xie ZP, Yuan Y, Zhou DM, Sun XM, Zhang Q, Xin Y, Li DD, Duan ZJ. The suppression of innate immune response by human rhinovirus C. Biochem Biophys Res Commun 2017; 490:22-28. [PMID: 28576493 DOI: 10.1016/j.bbrc.2017.05.169] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 05/29/2017] [Indexed: 12/20/2022]
Abstract
Rhinovirus C (RV-C), a newly identified group of human rhinoviruses (RVs), is associated with exacerbation of severe asthma. The type I interferon (IFN) response induced by this virus and the mechanisms of evasion of IFN-mediated innate immunity for RV-C remain unclear. In this study, we constructed a full-length cDNA clone of RV-C (LZ651) from a clinical sample. IFN-β mRNA and protein levels were not elevated in differentiated Human bronchial epithelial (HBE) cells at the air-liquid interface infected with RV-C, except in the early stage of infection. The ability to attenuate IFN-β activation was ascribed to 3Cpro of RV-C, and the 40-His site of 3Cpro played an important role. Furthermore, RIG-I was degraded by 3Cpro in a caspase-dependent manner and 3Cpro cleaved MAVS at 148 Q/A, which inhibited IFN signaling. Taken together, our results demonstrate the mechanism by which RV-C circumvents the production of type I IFN in infected cells.
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Affiliation(s)
- Li-Li Pang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xin-Hui Yuan
- The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Chang-Sheng Shao
- Anhui Engineering Research Center of Recombinant Protein Pharmaceutical Biotechnology, Institute of Advanced Technology, University of Science and Technology of China, Hefei 230026, China
| | - Mao-Zhong Li
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Institute for Immunization and Prevention, Beijing CDC, Beijing 100013, China
| | - Ying Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Basic Medical College, Inner Mongolia Medical University, Hohhot 010000, China
| | - Hui-Min Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Basic Medical College, Inner Mongolia Medical University, Hohhot 010000, China
| | - Guang-Cheng Xie
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Department of Pathogenic Biology, Chengde Medical University, Chengde 067000, China
| | - Zhi-Ping Xie
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yue Yuan
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Basic Medical College, Inner Mongolia Medical University, Hohhot 010000, China
| | - Dong-Mei Zhou
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xiao-Man Sun
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Qing Zhang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yan Xin
- Basic Medical College, Inner Mongolia Medical University, Hohhot 010000, China
| | - Dan-di Li
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
| | - Zhao-Jun Duan
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
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13
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Nguyen-Thi-Dieu T, Le-Thi-Thu H, Duong-Quy S. The profile of leucocytes, CD3+, CD4+, and CD8+ T cells, and cytokine concentrations in peripheral blood of children with acute asthma exacerbation. J Int Med Res 2017; 45:1658-1669. [PMID: 28703634 PMCID: PMC5805192 DOI: 10.1177/0300060516680439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective To determine the leucocyte profile and cytokine concentrations in the
peripheral blood of children with an acute asthma exacerbation (AAE). Methods This descriptive, cross-sectional study enrolled paediatric patients admitted
to hospital for AAE. The severity of AAE was assessed using the paediatric
asthma score (PAS). Peripheral blood samples were collected for automatic
quantification of white blood cell counts, CD3+, CD4+, and CD8+ T cells
populations by flow cytometry and cytokine concentrations by flow
cytometry-assisted immunoassay. Results A total of 127 children with AAE and 30 healthy control subjects were
included in the study. The proportion of paediatric patients with decreased
CD3+, CD4+ and CD8+ T cells was significantly higher in those with severe
AAE compared with those with mild-to-moderate AAE. The concentrations of
interleukin (IL)-2, IL-8, IL-12, and IL-4 in paediatric patients with
rhinovirus infection were significantly higher than in those without
rhinovirus infection. IL-2, IL-4, IL-6, TNF-α and GM-CSF concentrations
during AAE were significantly lower than control. IL-5 and IL-13
concentrations during AAE were significantly higher than control. Conclusions The decrease of CD3+, CD4+, CD8+ T cells and IL-2, IL-4, IL-6, TNF-α, and
GM-CSF combined with the increase of IL-5 and IL-13, were associated with
AAE in children with asthma.
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Affiliation(s)
| | - Huong Le-Thi-Thu
- 2 Department of Immunology, Allergology, and Rheumatology, National Hospital of Paediatrics, Hanoi, Vietnam
| | - Sy Duong-Quy
- 3 Department of Respiratory Diseases, Medical-Biological Research Centre, Lam Dong Medical College, Dalat, Vietnam.,4 Department of Physiology and Lung Functional Testing, Cochin Hospital, Paris Descartes University, Paris, France.,5 Department of Medicine, Penn State University, Hershey, PA, USA
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14
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Wei Y, Abduwaki M, Li M, Luo Q, Sun J, Lv Y, Nurahmat M, Dong J. Loki zupa (Luooukezupa) decoction reduced airway inflammation in an OVA-induced asthma mouse model. Chin Med 2016; 11:22. [PMID: 27134644 PMCID: PMC4851804 DOI: 10.1186/s13020-016-0094-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 04/20/2016] [Indexed: 12/22/2022] Open
Abstract
Background Loki zupa (Luooukezupa) decoction, consisting of the roots of Hyssopuscuspidatus Boriss (Shenxiangcao) and Irishalophila Pall root (Yuanweigen), is commonly used in Uygur medicine to treat asthma. However, the mode of action of this material has yet to be elucidated. This study aims to investigate the effects of Loki zupa decoction on the airway inflammation of an ovalbumin (OVA)-induced asthma mouse model. Methods Mice were divided into normal control (NC), asthma (A), high, medium and low doses of Loki zupa decoction (L 14.0, L 7.0, L 3.5), water extract (LW), n-butanol extract (LN), ethyl acetate extract (LE) and dexamethasone (DEX) groups. Antiasthmatic model was induced by OVA sensitization and challenged using BALB/c mice. Airway hyperresponsiveness (AHR) toward methacholine (Mch) was assessed using Buxco equipment. Lung inflammation was measured by hematoxylin and eosin staining and bronchoalveolar lavage fluid (BALF) cell count and classification. Inflammatory cytokines in BALF and serum were analyzed by Bio-Plex assay, and mRNA levels were investigated by qPCR analysis. The roots of H. Boriss (250 g) and I. Pall (250 g) were decocted, concentrated and diluted to 14.0, 7.0 and 3.5 g crude herb/kg body weight. The LW, LN and LE of the Loki zupa decoction were prepared and diluted to a dose equivalent to 7 g of crude herb/kg body weight. Results Loki zupa decoction and its extracts significantly attenuated the AHR towards Mch (all P < 0.05). Treatment with Loki zupa decoction and its extracts relieved the infiltration of inflammatory cells in and around the airways, and reduced the total white blood cell (all P < 0.05), neutrophil (all P < 0.05), monocyte (all P < 0.05) and eosinophil (all P < 0.05) counts in the BALF. The BALF samples collected from the mice treated with the Loki zupa decoction and its extracts had lower levels of IL-1β (all P < 0.05), TNF-α (all P < 0.05), IL-2 (all P < 0.05), IL-4 (P = 0.047) and IL-5 (all P < 0.05). The serum samples of these mice also had lower IL-1β (all P < 0.05), TNF-α (all P < 0.05), IL-4 (all P < 0.05) and IL-5 (all P < 0.05) levels and higher levels of IFN-γ (P < 0.001) compared with the OVA-induced asthma mouse model. qPCR analysis revealed that Loki zupa decoction and its extracts inhibited mRNA expression of IL-4 (all P < 0.05), IL-5 (all P < 0.05) and IL-13 (all P < 0.05) and promoted mRNA expression of IFN-γ (all P < 0.05) in asthmatic mice. Conclusion Loki zupa decoction reduced AHR, attenuated airway inflammation, promoted Th1 and suppressed Th2 cell functions in an OVA-induced asthma mouse model. Electronic supplementary material The online version of this article (doi:10.1186/s13020-016-0094-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ying Wei
- Department of Integrative Medicine, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China.,Institute of Integrated Traditional Chinese and Western Medicine, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China
| | - Muhammadjan Abduwaki
- Department of Integrative Medicine, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China.,Xinjiang Uygur Medical College, 370 West Beijing Road, Hotan, Xinjiang, 848000 China
| | - Mihui Li
- Department of Integrative Medicine, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China.,Institute of Integrated Traditional Chinese and Western Medicine, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China
| | - Qingli Luo
- Department of Integrative Medicine, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China.,Institute of Integrated Traditional Chinese and Western Medicine, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China
| | - Jing Sun
- Department of Integrative Medicine, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China.,Institute of Integrated Traditional Chinese and Western Medicine, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China
| | - Yubao Lv
- Department of Integrative Medicine, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China.,Institute of Integrated Traditional Chinese and Western Medicine, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China
| | - Mammat Nurahmat
- Department of Integrative Medicine, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China.,Xinjiang Uygur Medical College, 370 West Beijing Road, Hotan, Xinjiang, 848000 China
| | - Jingcheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China.,Institute of Integrated Traditional Chinese and Western Medicine, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040 China
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15
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Kakumanu S, Jaffee K, Visness CM, Dresen A, Burger M, Witter FR, O'Connor GT, Cruikshank WW, Shreffler WG, Bacharier LB, Gern JE. The influence of atopy and asthma on immune responses in inner-city adults. IMMUNITY INFLAMMATION AND DISEASE 2016; 4:80-90. [PMID: 27042305 PMCID: PMC4768071 DOI: 10.1002/iid3.96] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 12/01/2015] [Accepted: 12/05/2015] [Indexed: 11/08/2022]
Abstract
Asthma in the inner‐city population is usually atopic in nature, and is associated with significant morbidity and mortality. However, the underlying immune abnormalities that underlie asthma in urban adults have not been well defined. We investigated the influence of atopy and asthma on cytokine responses of inner‐city adult women to define immune abnormalities associated with asthma and atopy. Blood samples were collected from 509 of 606 inner‐city women enrolled in the Urban Environment and Childhood Asthma (URECA) study. We tested for associations between atopy and asthma status and cytokine responses in peripheral blood mononuclear cells incubated ex vivo with a panel of innate and adaptive immune stimulants. Atopic subjects had heightened Th2 cytokine responses (IL‐4, IL‐5, IL‐13) to cockroach and dust mite antigens, tetanus toxoid, and phytohemagglutinin (P < 0.05 for all). Differences in cytokine responses were greatest in response to stimulation with cockroach and dust mite. In a multivariate analysis, atopy was broadly related to increased Th2‐like responses to all antigens and PHA, while asthma was only weakly related to mitogen‐induced IL‐4 and IL‐5 responses. There were few asthma or allergy‐related differences in responses to innate stimuli, including IFN‐α and IFN‐γ responses. In this inner‐city adult female population, atopy is associated with enhanced Th2 responses to allergens and other stimuli, and there was little or no additional signal attributable to asthma. In particular, these data indicate that altered systemic interferon and innate immune responses are not associated with allergies and/or asthma in inner‐city women.
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Affiliation(s)
- Sujani Kakumanu
- School of Medicine and Public Health University of Wisconsin Madison Wisconsin
| | - Katy Jaffee
- Division of Federal Systems Rho Inc. Chapel Hill North Carolina
| | | | - Amy Dresen
- School of Medicine and Public Health University of Wisconsin Madison Wisconsin
| | - Melissa Burger
- School of Medicine and Public Health University of Wisconsin Madison Wisconsin
| | - Frank R Witter
- Department of Obstetrics and Gynecology Johns Hopkins University School of Medicine Baltimore Maryland
| | - George T O'Connor
- Department of Pulmonary Medicine Boston University School of Medicine Boston Massachusetts
| | - William W Cruikshank
- Department of Pulmonary Medicine Boston University School of Medicine Boston Massachusetts
| | - Wayne G Shreffler
- Center for Immunology and Inflammatory Diseases and the Food Allergy Center Massachusetts General Hospital and Harvard Medical School Boston Massachusetts
| | - Leonard B Bacharier
- Division of Allergy and Pulmonary Medicine, Department of Pediatrics Washington University School of Medicine and St. Louis Children's Hospital St. Louis Missouri
| | - James E Gern
- School of Medicine and Public Health University of Wisconsin Madison Wisconsin
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16
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Houtsma A, Bedenice D, Pusterla N, Pugliese B, Mapes S, Hoffman AM, Paxson J, Rozanski E, Mukherjee J, Wigley M, Mazan MR. Association between inflammatory airway disease of horses and exposure to respiratory viruses: a case control study. Multidiscip Respir Med 2015; 10:33. [PMID: 26535117 PMCID: PMC4630835 DOI: 10.1186/s40248-015-0030-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 09/14/2015] [Indexed: 11/10/2022] Open
Abstract
Background Inflammatory airway disease (IAD) in horses, similar to asthma in humans, is a common cause of chronic poor respiratory health and exercise intolerance due to airway inflammation and exaggerated airway constrictive responses. Human rhinovirus is an important trigger for the development of asthma; a similar role for viral respiratory disease in equine IAD has not been established yet. Methods In a case–control study, horses with IAD (n = 24) were compared to control animals from comparable stabling environments (n = 14). Horses were classified using pulmonary function testing and bronchoalveolar lavage. PCR for equine rhinitis virus A and B (ERAV, ERBV), influenza virus (EIV), and herpesviruses 2, 4, and 5 (EHV-2, EHV-4, EHV-5) was performed on nasal swab, buffy coat from whole blood, and cells from BAL fluid (BALF), and serology were performed. Categorical variables were compared between IAD and control using Fisher’s exact test; continuous variables were compared with an independent t-test. For all analyses, a value of P <0.05 was considered significant. Results There was a significant association between diagnosis of IAD and history of cough (P = 0.001) and exercise intolerance (P = 0.003) but not between nasal discharge and IAD. Horses with IAD were significantly more likely to have a positive titer to ERAV (68 %) vs. control horses (32 %). Horses with IAD had higher log-transformed titers to ERAV than did controls (2.28 ± 0.18 v.1.50 ± 0.25, P = 0.038). There was a significant association between nasal shedding (positive PCR) of EHV-2 and diagnosis of IAD (P = 0.002). Conclusions IAD remains a persistent problem in the equine population and has strong similarities to the human disease, asthma, for which viral infection is an important trigger. The association between viral respiratory infection and development or exacerbation of IAD in this study suggests that viral infection may contribute to IAD susceptibility; there is, therefore, merit in further investigation into the relationship between respiratory virus exposure and development of IAD.
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Affiliation(s)
- Ashley Houtsma
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA USA
| | - Daniela Bedenice
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA USA
| | | | - Brenna Pugliese
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA USA
| | | | - Andrew M Hoffman
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA USA
| | | | - Elizabeth Rozanski
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA USA
| | - Jean Mukherjee
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA USA
| | - Margaret Wigley
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA USA
| | - Melissa R Mazan
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA USA
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17
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Ferulic Acid Induces Th1 Responses by Modulating the Function of Dendritic Cells and Ameliorates Th2-Mediated Allergic Airway Inflammation in Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:678487. [PMID: 26495021 PMCID: PMC4606409 DOI: 10.1155/2015/678487] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/02/2015] [Indexed: 12/14/2022]
Abstract
This study investigated the immunomodulatory effects of ferulic acid (FA) on antigen-presenting dendritic cells (DCs) in vitro and its antiallergic effects against ovalbumin- (OVA-) induced Th2-mediated allergic asthma in mice. The activation of FA-treated bone marrow-derived DCs by lipopolysaccharide (LPS) stimulation induced a high level of interleukin- (IL-) 12 but reduced the expression levels of the proinflammatory cytokines IL-1β, IL-6, and tumor necrosis factor- (TNF-) α. Compared to control-treated DCs, FA significantly enhanced the expressions of Notch ligand Delta-like 4 (Dll4), MHC class II, and CD40 molecules by these DCs. Furthermore, these FA-treated DCs enhanced T-cell proliferation and Th1 cell polarization. In animal experiments, oral administration of FA reduced the levels of OVA-specific immunoglobulin E (IgE) and IgG1 and enhanced IgG2a antibody production in serum. It also ameliorated airway hyperresponsiveness and attenuated eosinophilic pulmonary infiltration in dose-dependent manners. In addition, FA treatment inhibited the production of eotaxin, Th2 cytokines (IL-4, IL-5, and IL-13), and proinflammatory cytokines but promoted the Th1 cytokine interferon- (IFN-) γ production in bronchoalveolar lavage fluid (BALF) and the culture supernatant of spleen cells. These findings suggest that FA exhibits an antiallergic effect via restoring Th1/Th2 imbalance by modulating DCs function in an asthmatic mouse model.
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18
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Hammond C, Kurten M, Kennedy JL. Rhinovirus and asthma: a storied history of incompatibility. Curr Allergy Asthma Rep 2015; 15:502. [PMID: 25612798 DOI: 10.1007/s11882-014-0502-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The human rhinovirus (HRV) is commonly associated with loss of asthma symptom control requiring escalation of care and emergency room visits in many patients. While the association is clear, the mechanisms behind HRV-induced asthma exacerbations remain uncertain. Immune dysregulation via aberrant immune responses, both deficient and exaggerated, have been proposed as mechanisms for HRV-induced exacerbations of asthma. Epithelium-derived innate immune cytokines that bias Th2 responses, including interleukin (IL)-25, IL-33, and thymic stromal lymphopoietin (TSLP), have also been implicated as a means to bridge allergic conditions with asthma exacerbations. In this review, we discuss the literature supporting these positions. We also discuss new and emerging biotherapeutics that may target virus-induced exacerbations of asthma.
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Affiliation(s)
- Catherine Hammond
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA,
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19
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Schwantes EA, Manthei DM, Denlinger LC, Evans MD, Gern JE, Jarjour NN, Mathur SK. Interferon gene expression in sputum cells correlates with the Asthma Index Score during virus-induced exacerbations. Clin Exp Allergy 2015; 44:813-21. [PMID: 24450586 PMCID: PMC4037351 DOI: 10.1111/cea.12269] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 11/20/2013] [Accepted: 01/01/2014] [Indexed: 01/17/2023]
Abstract
Background The majority of asthma exacerbations are related to viral respiratory infections. Some, but not all, previous studies have reported that low interferon responses in patients with asthma increase the risk for virus‐induced exacerbations. Objective We sought to determine the relationship between lower airway inflammatory biomarkers, specifically interferon gene expression, and the severity or presence of an exacerbation in asthmatics experiencing a naturally occurring viral infection. Methods Sputum samples were analysed from subjects in an asthma exacerbation study who experienced a confirmed viral infection. Subjects were monitored for daily symptoms, medication use and peak expiratory flow rate until baseline. Sputum samples were assessed for cell counts and gene expression. Results Interferon gamma expression was significantly greater in patients with asthma exacerbations compared to non‐exacerbating patients (P = 0.002). IFN‐α1, IFN‐β1 and IFN‐γ mRNA levels correlated with the peak Asthma Index (r = 0.58, P < 0.001; r = 0.57, P = 0.001; and r = 0.51, P = 0.004, respectively). Additionally, IL‐13, IL‐10 and eosinophil major basic protein mRNA levels were greater in patients with asthma exacerbations compared to non‐exacerbating patients (P = 0.03, P = 0.06 and P = 0.02, respectively), and IL‐13 mRNA correlated with the peak Asthma Index (P = 0.006). Conclusions Our findings indicate that asthma exacerbations are associated with increased rather than decreased expression of interferons early in the course of infection. These findings raise the possibility that excessive virus‐induced interferon production during acute infections can contribute to airway inflammation and exacerbations of asthma.
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Affiliation(s)
- E A Schwantes
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
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20
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Zhang P, Li F, Li N, Zhu Q, Yang C, Han Q, Chen J, Lv Y, Yu L, Wei P, Liu Z. Genetic variations of SOCS1 are associated with chronic hepatitis B virus infection. Hum Immunol 2014; 75:709-14. [PMID: 24768946 DOI: 10.1016/j.humimm.2014.04.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 01/19/2014] [Accepted: 04/06/2014] [Indexed: 10/25/2022]
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21
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Abstract
OBJECTIVE To determine whether hospital length-of-stay (LOS) for bronchiolitis is influenced by the causative virus: respiratory syncytial virus (RSV) or rhinovirus. METHODS This prospective study was carried out in 3 university hospitals in Finland during 2 consecutive winter seasons. We enrolled consecutive children <2 years of age hospitalized with an attending physician's diagnosis of bronchiolitis. All enrolled children were included in the primary analysis. A parallel analysis was also conducted using a stricter definition for bronchiolitis (age <12 months and no history of wheeze). Polymerase chain reaction was used to test the nasopharyngeal aspirate samples for multiple respiratory pathogens. RESULTS The median age of the 408 children was 8 months, 73% had no history of wheeze and their median hospital LOS was 2 days. 144 (35%) children had RSV only and 92 (23%) children rhinovirus only infections. Children with rhinovirus only had shorter duration of prehospital symptoms, higher disease severity score at entry and more often a history of wheezing (all P ≤ 0.001). Controlling for 7 demographic and clinical characteristics, those with rhinovirus only had shorter hospital LOS when compared with children with RSV only (adjusted odds ratio: 0.45; 95% confidence interval: 0.22-0.92; P = 0.03). The rhinovirus only finding was similar in the subset of 206 children with stricter diagnosis (adjusted odds ratio: 0.30; 0.06-1.49; P = 0.14). CONCLUSIONS Hospital LOS is associated with rhinovirus etiology of bronchiolitis. Our data call attention to the importance of both RSV and rhinovirus testing in clinical research.
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Cytokine profile of bronchoalveolar lavage fluid from a mouse model of bronchial asthma during seasonal H1N1 infection. Cytokine 2014; 69:206-10. [PMID: 24998935 DOI: 10.1016/j.cyto.2014.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 05/08/2014] [Accepted: 06/04/2014] [Indexed: 11/22/2022]
Abstract
BACKGROUND Several studies support the role of viral infections in the pathogenesis of asthma exacerbation. However, several pediatricians believe that influenza virus infection does not exacerbate bronchial asthma, except for influenza A H1N1 2009 pandemic [A(H1N1)pdm09] virus infection. We previously reported that A(H1N1)pdm09 infection possibly induces severe pulmonary inflammation or severe asthmatic attack in a mouse model of bronchial asthma and in asthmatic children. However, the ability of seasonal H1N1 influenza (H1N1) infection to exacerbate asthmatic attacks in bronchial asthma patients has not been previously reported, and the differences in the pathogenicity profiles, such as cytokine profiles, remains unclear in bronchial asthma patients after A(H1N1)pdm09 and H1N1 infections. METHODS The cytokine levels and viral titers in the bronchoalveolar lavage (BAL) fluid from mice with and without asthma after H1N1 infection (A/Yamagata and A/Puerto Rico strains) were compared. RESULTS The interleukin (IL)-6, IL-10, tumor necrosis factor (TNF)-α, IL-5, interferon (IFN)-α, IFN-β, and IFN-γ levels were significantly higher in the BAL fluids from the control/H1N1 mice than from the asthmatic/H1N1 mice. The viral titers in the BAL fluid were also significantly higher in the control/H1N1mice than in the asthmatic/H1N1 mice infected with either A/Yamagata or A/Puerto Rico. CONCLUSIONS A(H1N1)pdm09 infection, but not H1N1 infection, can induce severe pulmonary inflammation through elevated cytokine levels in a mouse model of asthma.
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Asthma increases susceptibility to heterologous but not homologous secondary influenza. J Virol 2014; 88:9166-81. [PMID: 24899197 DOI: 10.1128/jvi.00265-14] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Asthma was the most common comorbidity observed among patients hospitalized with influenza A virus during the 2009 pandemic. However, little remains known about how the asthmatic phenotype influences protective immune responses against respiratory viral pathogens. Using the ovalbumin-induced allergic lung inflammation model, we found that asthmatic mice, unlike nonasthmatic mice, were highly susceptible to secondary heterologous virus challenge. While primary virus infection generated protective memory immune responses against homologous secondary virus challenge in both asthmatic and nonasthmatic mice, full protection against heterologous A/California/04/2009 (CA04) viral infection was observed only in nonasthmatic mice. Significant reductions in CA04-specific IgA, IgG, and IgM levels and in CA04-neutralizing activity of bronchoalveolar lavage fluid (BALF) was observed following secondary CA04 challenge of PR8-immunized asthmatic mice. Furthermore, transfer of immune BALF obtained from nonasthmatic, but not asthmatic, donors following secondary viral infection generated protection against CA04 in naive recipients. Nonspecific B-cell activation by CpG inoculation restored protection in PR8-immunized, CA04-challenged asthmatic mice. These results demonstrate a causal link between defective mucosal antibody responses and the heightened susceptibility of asthmatic mice to influenza infection and provide a mechanistic explanation for the observation that asthma was a major risk factor during the 2009 influenza pandemic. IMPORTANCE The prevalence of asthma worldwide is increasing each year. Unfortunately, there is no cure for asthma. Asthmatic individuals not only suffer from consistent wheezing and coughing but are also believed to be more prone to serious lung infections that result in bronchitis and pneumonia. However, little is known about the influence of asthma on host mucosal immunity. Here we show that antibody responses during secondary heterologous influenza infections are suboptimal and that this is responsible for the increased mortality in asthmatic mice from viral infections. Understanding the mechanism of increased susceptibility will aid in developing new antiviral therapies for asthmatic patients.
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Iwasaki J, Smith WA, Khoo SK, Bizzintino J, Zhang G, Cox DW, Laing IA, Le Souëf PN, Thomas WR, Hales BJ. Comparison of rhinovirus antibody titers in children with asthma exacerbations and species-specific rhinovirus infection. J Allergy Clin Immunol 2014; 134:25-32. [PMID: 24767874 DOI: 10.1016/j.jaci.2014.03.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 02/14/2014] [Accepted: 03/19/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND Asthma exacerbations are associated with human rhinovirus (HRV) infections, and more severe exacerbations are associated with HRV-C. We have previously shown that the HRV-C-specific antibody response is low in healthy adult sera and that most of the antibody to HRV-C is cross-reactive with HRV-A. OBJECTIVES To compare the antibody response to each HRV species in asthmatic and nonasthmatic children in whom the type of HRV infection was known. METHODS Total and specific IgG₁ binding to HRV viral capsid protein antigens of HRV-A, -B, and -C were tested in the plasma from nonasthmatic children (n = 47) and children presenting to the emergency department with asthma exacerbations (n = 96). HRV, found in most of the children at the time of their exacerbation (72%), was analyzed using molecular typing. RESULTS Asthmatic children had higher antibody responses to HRV. The titers specific to HRV-A, and to a lesser extent HRV-B, were higher than in nonasthmatic controls. The species-specific responses to HRV-C were markedly lower than titers to HRV-A and HRV-B in both asthmatic and nonasthmatic children (P < .001). The titers both at presentation and after convalescence were not associated with the HRV genotype detected during the exacerbation. CONCLUSIONS The higher total anti-HRV antibody titers of asthmatic children and their higher anti-HRV-A and -B titers show their development of a heightened antiviral immune response. The low species-specific HRV-C titers found in all groups, even when the virus was found, point to a different and possibly less efficacious immune response to this species.
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Affiliation(s)
- Jua Iwasaki
- Telethon Institute for Child Health Research, University of Western Australia, Perth, Australia
| | - Wendy-Anne Smith
- Telethon Institute for Child Health Research, University of Western Australia, Perth, Australia
| | - Siew-Kim Khoo
- School of Paediatrics and Child Health, University of Western Australia, Perth, Australia
| | - Joelene Bizzintino
- School of Paediatrics and Child Health, University of Western Australia, Perth, Australia
| | - Guicheng Zhang
- School of Paediatrics and Child Health, University of Western Australia, Perth, Australia; School of Public Health, Curtin University, Perth, Australia
| | - Des W Cox
- School of Paediatrics and Child Health, University of Western Australia, Perth, Australia
| | - Ingrid A Laing
- School of Paediatrics and Child Health, University of Western Australia, Perth, Australia
| | - Peter N Le Souëf
- School of Paediatrics and Child Health, University of Western Australia, Perth, Australia
| | - Wayne R Thomas
- Telethon Institute for Child Health Research, University of Western Australia, Perth, Australia
| | - Belinda J Hales
- Telethon Institute for Child Health Research, University of Western Australia, Perth, Australia; School of Paediatrics and Child Health, University of Western Australia, Perth, Australia.
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Vanders RL, Gibson PG, Wark PAB, Murphy VE. Alterations in inflammatory, antiviral and regulatory cytokine responses in peripheral blood mononuclear cells from pregnant women with asthma. Respirology 2014; 18:827-33. [PMID: 23421904 DOI: 10.1111/resp.12068] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 11/29/2012] [Accepted: 12/27/2012] [Indexed: 12/23/2022]
Abstract
BACKGROUND & OBJECTIVE Severe asthma exacerbations during pregnancy are a common complication leading to poor health outcomes for both the mother and the baby. Asthma exacerbations are caused most frequently by respiratory viruses. A balance between antiviral and inflammatory immune responses is critical during pregnancy; the balance may be altered by asthma and respiratory virus infection. METHODS Peripheral blood mononuclear cells (PBMCs) were isolated from (i) non-pregnant healthy controls, (ii) pregnant non-asthmatics, (iii) post-partum non-asthmatics, (iv) non-pregnant asthmatics (v) pregnant asthmatics, and (vi) post-partum asthmatics. Cells were cultured in vitro with the mitogen phytohaemagglutinin or with a strain of the 2009 pandemic swine influenza. Interferon (IFN)-γ, interleukin (IL)-10 and IL-17 protein were measured from culture supernatant. Neutrophil counts were obtained in samples from pregnant and post-partum women. RESULTS Following the phytohaemagglutinin stimulation of PBMCs, pregnant asthmatics had significantly higher IL-17 and significantly lower IFN-γ responses compared with healthy non-pregnant women. Following infection with influenza, a significant reduction was also observed in IFN-γ and IL-10 production from PBMC of pregnant asthmatics. The IL-17 response to phytohaemagglutinin correlated with the neutrophil percentage. Differences in IFN-γ, IL-10 and IL-17 were found to persist for at least 6 months post-partum. CONCLUSIONS A reduction in antiviral and regulatory immunity with increased inflammation during pregnancy occurs in PBMC from pregnant women with asthma. This novel information may relate to the increased susceptibility and disease severity to respiratory virus infections observed during pregnancy.
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Affiliation(s)
- Rebecca L Vanders
- Centre for Asthma and Respiratory Diseases, School of Medicine and Public Health, The University of Newcastle, Newcastle, New South Wales, Australia
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Tsukagoshi H, Ishioka T, Noda M, Kozawa K, Kimura H. Molecular epidemiology of respiratory viruses in virus-induced asthma. Front Microbiol 2013; 4:278. [PMID: 24062735 PMCID: PMC3771312 DOI: 10.3389/fmicb.2013.00278] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 08/27/2013] [Indexed: 11/22/2022] Open
Abstract
Acute respiratory illness (ARI) due to various viruses is not only the most common cause of upper respiratory infection in humans but is also a major cause of morbidity and mortality, leading to diseases such as bronchiolitis and pneumonia. Previous studies have shown that respiratory syncytial virus (RSV), human rhinovirus (HRV), human metapneumovirus (HMPV), human parainfluenza virus (HPIV), and human enterovirus infections may be associated with virus-induced asthma. For example, it has been suggested that HRV infection is detected in the acute exacerbation of asthma and infection is prolonged. Thus it is believed that the main etiological cause of asthma is ARI viruses. Furthermore, the number of asthma patients in most industrial countries has greatly increased, resulting in a morbidity rate of around 10-15% of the population. However, the relationships between viral infections, host immune response, and host factors in the pathophysiology of asthma remain unclear. To gain a better understanding of the epidemiology of virus-induced asthma, it is important to assess both the characteristics of the viruses and the host defense mechanisms. Molecular epidemiology enables us to understand the pathogenesis of microorganisms by identifying specific pathways, molecules, and genes that influence the risk of developing a disease. However, the epidemiology of various respiratory viruses associated with virus-induced asthma is not fully understood. Therefore, in this article, we review molecular epidemiological studies of RSV, HRV, HPIV, and HMPV infection associated with virus-induced asthma.
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Affiliation(s)
- Hiroyuki Tsukagoshi
- Gunma Prefectural Institute of Public Health and Environmental Sciences Gunma, Japan
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Okada S, Hasegawa S, Hasegawa H, Ainai A, Atsuta R, Ikemoto K, Sasaki K, Toda S, Shirabe K, Takahara M, Harada S, Morishima T, Ichiyama T. Analysis of bronchoalveolar lavage fluid in a mouse model of bronchial asthma and H1N1 2009 infection. Cytokine 2013; 63:194-200. [PMID: 23706975 DOI: 10.1016/j.cyto.2013.04.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 03/23/2013] [Accepted: 04/29/2013] [Indexed: 11/24/2022]
Abstract
BACKGROUND Bronchial asthma is known as a risk factor of admission to the intensive care unit. However, the mechanism by which pandemic 2009 H1N1 (A(H1N1)pdm09) infection increases the severity of symptoms in patients with bronchial asthma is unknown; therefore, we aimed at determining this mechanism. METHODS Inflammatory cell levels in the bronchoalveolar lavage (BAL) fluid from the non-asthma/mock, non-asthma/A(H1N1)pdm09, asthma/mock, and asthma/A(H1N1)pdm09 groups were determined using BALB/c mice. Cell infiltration levels, cytokine levels, and viral titers were compared among the groups. RESULTS Neutrophil, monocyte, interleukin (IL)-5, IL-6, IL-10, IL-13, and tumor necrosis factor (TNF)-α levels were significantly higher in the BAL fluid from the non-asthma/A(H1N1)pdm09 and asthma/A(H1N1)pdm09 groups than in the mock groups (p<0.05 for neutrophils and monocytes; p<0.01 for the rest). The number of eosinophils and CD8(+) lymphocytes and the level of transforming growth factor beta 1 (TGF-β1) in BAL fluid in the asthma/A(H1N1)pdm09 group were significantly higher among all groups (p<0.05 for eosinophils and CD8(+) lymphocytes; p<0.01 for TGF-β1). The levels of IL-6, IL-10, IL-13, and TNF-α were significantly higher in the asthma/A(H1N1)pdm09 group than in the non-asthma/A(H1N1)pdm09 group (p<0.05 for IL-6 and IL-10; p<0.01 for IL-13 and TNF-α). The level of IFN-γ in the asthma/A(H1N1)pdm09 group was significantly lower than that in the non-asthma/A(H1N1)pdm09 group (p<0.05). The viral titers in the BAL fluids were higher in the asthma/A(H1N1)pdm09 group than in the non-asthma/A(H1N1)pdm09 group (p<0.05). Histopathological examination showed more severe infiltration of inflammatory cells and destruction of lung tissue in the asthma/A(H1N1)pdm09 group than in the non-asthma/A(H1N1)pdm09 group. CONCLUSIONS Severe pulmonary inflammation induced by elevated levels of cytokines, combined with increased viral replication due to decreased IFN-γ levels, may contribute to worsening respiratory symptoms in patients with bronchial asthma and A(H1N1)pdm09 infection.
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Affiliation(s)
- Seigo Okada
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi 755-8505, Japan.
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Newcomb DC, Boswell MG, Reiss S, Zhou W, Goleniewska K, Toki S, Harintho MT, Lukacs NW, Kolls JK, Peebles RS. IL-17A inhibits airway reactivity induced by respiratory syncytial virus infection during allergic airway inflammation. Thorax 2013; 68:717-23. [PMID: 23422214 DOI: 10.1136/thoraxjnl-2012-202404] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Viral infections are the most frequent cause of asthma exacerbations and are linked to increased airway reactivity (AR) and inflammation. Mice infected with respiratory syncytial virus (RSV) during ovalbumin (OVA)-induced allergic airway inflammation (OVA/RSV) had increased AR compared with OVA or RSV mice alone. Furthermore, interleukin 17A (IL-17A) was only increased in OVA/RSV mice. OBJECTIVE To determine whether IL-17A increases AR and inflammation in the OVA/RSV model. METHODS Wild-type (WT) BALB/c and IL-17A knockout (KO) mice underwent mock, RSV, OVA or OVA/RSV protocols. Lungs, bronchoalveolar lavage (BAL) fluid and/or mediastinal lymph nodes (MLNs) were harvested after infection. Cytokine expression was determined by ELISA in the lungs or BAL fluid. MLNs were restimulated with either OVA (323-229) peptide or RSV M2 (127-135) peptide and IL-17A protein expression was analysed. AR was determined by methacholine challenge. RESULTS RSV increased IL-17A protein expression by OVA-specific T cells 6 days after infection. OVA/RSV mice had decreased interferon-β protein expression compared with RSV mice. OVA/RSV mice had increased IL-23p19 mRNA expression in lung homogenates compared with mock, OVA or RSV mice. Unexpectedly, IL-17A KO OVA/RSV mice had increased AR compared with WT OVA/RSV mice. Furthermore, IL-17A KO OVA/RSV mice had increased eosinophils, lymphocytes and IL-13 protein expression in BAL fluid compared with WT OVA/RSV mice. CONCLUSIONS IL-17A negatively regulated AR and airway inflammation in OVA/RSV mice. This finding is important because IL-17A has been identified as a potential therapeutic target in asthma, and inhibiting IL-17A in the setting of virally-induced asthma exacerbations may have adverse consequences.
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Affiliation(s)
- Dawn Catherine Newcomb
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA.
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Atamas SP, Chapoval SP, Keegan AD. Cytokines in chronic respiratory diseases. F1000 BIOLOGY REPORTS 2013; 5:3. [PMID: 23413371 PMCID: PMC3564216 DOI: 10.3410/b5-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cytokines are small, secreted proteins that control immune responses. Within the lung, they can control host responses to injuries or infection, resulting in clearance of the insult, repair of lung tissue, and return to homeostasis. Problems can arise when this response is over exuberant and/or cytokine production becomes dysregulated. In such cases, chronic and repeated inflammatory reactions and cytokine production can be established, leading to airway remodeling and fibrosis with unintended, maladaptive consequences. In this report, we describe the cytokines and molecular mechanisms behind the pathology observed in three major chronic diseases of the lung: asthma, chronic obstructive pulmonary disease (COPD), and pulmonary fibrosis. Overlapping mechanisms are presented as potential sites for therapeutic intervention.
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Affiliation(s)
- Sergei P Atamas
- Department of Medicine, University of Maryland School of Medicine Baltimore, MD 21201 USA ; Department of Microbiology and Immunology, University of Maryland School of Medicine Baltimore, MD 21201 USA ; Baltimore VA Medical Center Baltimore, MD 21201 USA
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Pritchard AL, Carroll ML, Burel JG, White OJ, Phipps S, Upham JW. Innate IFNs and plasmacytoid dendritic cells constrain Th2 cytokine responses to rhinovirus: a regulatory mechanism with relevance to asthma. THE JOURNAL OF IMMUNOLOGY 2012; 188:5898-905. [PMID: 22611238 DOI: 10.4049/jimmunol.1103507] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Human rhinoviruses (RV) cause only minor illness in healthy individuals, but can have deleterious consequences in people with asthma. This study sought to examine normal homeostatic mechanisms regulating adaptive immunity to RV in healthy humans, focusing on effects of IFN-αβ and plasmacytoid dendritic cells (pDC) on Th2 immune responses. PBMC were isolated from 27 healthy individuals and cultured with RV16 for up to 5 d. In some experiments, IFN-αβ was neutralized using a decoy receptor that blocks IFN signaling, whereas specific dendritic cell subsets were depleted from cultures with immune-magnetic beads. RV16 induced robust expression of IFN-α, IFN-β, multiple IFN-stimulated genes, and T cell-polarizing factors within the first 24 h. At 5 d, the production of memory T cell-derived IFN-γ, IL-10, and IL-13, but not IL-17A, was significantly elevated. Neutralizing the effects of type-I IFN with the decoy receptor B18R led to a significant increase in IL-13 synthesis, but had no effect on IFN-γ synthesis. Depletion of pDC from RV-stimulated cultures markedly inhibited IFN-α secretion, and led to a significant increase in expression and production of the Th2 cytokines IL-5 (p = 0.02), IL-9 (p < 0.01), and IL-13 (p < 0.01), but had no effect on IFN-γ synthesis. Depletion of CD1c(+) dendritic cells did not alter cytokine synthesis. In healthy humans, pDC and the IFN-αβ they secrete selectively constrain Th2 cytokine synthesis following RV exposure in vitro. This important regulatory mechanism may be lost in asthma; deficient IFN-αβ synthesis and/or pDC dysfunction have the potential to contribute to asthma exacerbations during RV infections.
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Affiliation(s)
- Antonia L Pritchard
- Lung and Allergy Research Centre, School of Medicine, University of Queensland, Princess Alexandra Hospital, Brisbane, Queensland 4102, Australia.
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Miller EK, Hernandez JZ, Wimmenauer V, Shepherd BE, Hijano D, Libster R, Serra ME, Bhat N, Batalle JP, Mohamed Y, Reynaldi A, Rodriguez A, Otello M, Pisapia N, Bugna J, Bellabarba M, Kraft D, Coviello S, Ferolla FM, Chen A, London SJ, Siberry GK, Williams JV, Polack FP. A mechanistic role for type III IFN-λ1 in asthma exacerbations mediated by human rhinoviruses. Am J Respir Crit Care Med 2012; 185:508-16. [PMID: 22135341 PMCID: PMC3361761 DOI: 10.1164/rccm.201108-1462oc] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Accepted: 11/13/2011] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Human rhinoviruses (HRV) are the leading cause of upper respiratory infections and have been postulated to trigger asthma exacerbations. However, whether HRV are detected during crises because upper respiratory infections often accompany asthma attacks, or because they specifically elicit exacerbations, is unclear. Moreover, although several hypotheses have been advanced to explain virus-induced exacerbations, their mechanism remains unclear. OBJECTIVES To determine the role of HRV in pediatric asthma exacerbations and the mechanisms mediating wheezing. METHODS We prospectively studied 409 children with asthma presenting with upper respiratory infection in the presence or absence of wheezing. Candidate viral and immune mediators of illness were compared among children with asthma with different degrees of severity of acute asthma. MEASUREMENTS AND MAIN RESULTS HRV infections specifically associated with asthma exacerbations, even after adjusting for relevant demographic and clinical variables defined a priori (odds ratio, 1.90; 95% confidence interval, 1.21-2.99; P = 0.005). No difference in virus titers, HRV species, and inflammatory or allergic molecules was observed between wheezing and nonwheezing children infected with HRV. Type III IFN-λ(1) levels were higher in wheezing children infected with HRV compared with nonwheezing (P < 0.001) and increased with worsening symptoms (P < 0.001). Moreover, after adjusting for IFN-λ(1), children with asthma infected with HRV were no longer more likely to wheeze than those who were HRV-negative (odds ratio, 1.18; 95% confidence interval, 0.57-2.46; P = 0.66). CONCLUSIONS Our findings suggest that HRV infections in children with asthma are specifically associated with acute wheezing, and that type III IFN-λ(1) responses mediate exacerbations caused by HRV. Modulation of IFN- λ(1) should be studied as a therapeutic target for exacerbations caused by HRV.
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Affiliation(s)
- E. Kathryn Miller
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee
| | - Johanna Zea Hernandez
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee
- Fundación INFANT, Buenos Aires, Argentina
| | | | - Bryan E. Shepherd
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee
| | - Diego Hijano
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee
- Fundación INFANT, Buenos Aires, Argentina
| | - Romina Libster
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee
- Fundación INFANT, Buenos Aires, Argentina
| | | | - Niranjan Bhat
- Department of Pediatrics, Johns Hopkins University, Baltimore, Maryland
| | | | - Yassir Mohamed
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee
| | - Andrea Reynaldi
- Hospital Mi Pueblo, Florencia Varela, Buenos Aires, Argentina
| | | | | | - Nestor Pisapia
- Hospital V. Lopez y Planes, General Rodriguez, Buenos Aires, Argentina
| | | | | | - David Kraft
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee
| | | | | | - Aaron Chen
- Children's Hospital Philadelphia, Philadelphia, Pennsylvania
| | - Stephanie J. London
- NIEHS, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina; and
| | - George K. Siberry
- Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, Maryland
| | - John V. Williams
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee
| | - Fernando P. Polack
- Department of Pediatrics, Vanderbilt University, Nashville, Tennessee
- Fundación INFANT, Buenos Aires, Argentina
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Busse WW, Gern JE. Asthma and pregnancy: do they give clues to abnormal antiviral activity? Thorax 2012; 67:189-90. [PMID: 21984364 PMCID: PMC4418544 DOI: 10.1136/thoraxjnl-2011-201007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- William W. Busse
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - James E. Gern
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
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Kloepfer KM, Olenec JP, Lee WM, Liu G, Vrtis RF, Roberg KA, Evans MD, Gangnon RE, Lemanske RF, Gern JE. Increased H1N1 infection rate in children with asthma. Am J Respir Crit Care Med 2012; 185:1275-9. [PMID: 22366048 DOI: 10.1164/rccm.201109-1635oc] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
RATIONALE The 2009 H1N1 flu appeared to cause more severe cold symptoms during the 2009-2010 flu season. OBJECTIVES We evaluated H1N1 infections during peak viral season in children with and without asthma to determine whether the H1N1 infectivity rate and illness severity were greater in subjects with asthma. METHODS One hundred and eighty children, 4-12 years of age, provided eight consecutive weekly nasal mucus samples from September 5 through October 24, 2009, and scored cold and asthma symptoms daily. Viral diagnostics were performed for all nasal samples. MEASUREMENTS AND MAIN RESULTS One hundred and sixty-one children (95 with asthma, 66 without asthma) completed at least 6 of the 8 nasal samples. The incidence of H1N1 infection was significantly higher in children with asthma (41%) than in children without asthma (24%; odds ratio, 4; 95% confidence interval, 1.8-9; P < 0.001), but rates of human rhinovirus infection (90% each) and other viral infections (47 vs. 41%) were similar. In children with asthma, there was a nonsignificant trend for increased loss of asthma control during H1N1 infections compared with human rhinovirus infections (38 vs. 21%; odds ratio, 2.6; 95% confidence interval, 0.9-7.2; P = 0.07). CONCLUSIONS During peak 2009 H1N1 flu season, children with asthma were infected almost twice as often with H1N1 compared with other respiratory viruses. H1N1 infection also caused increased severity of cold symptoms compared with other viral infections. Given the increased susceptibility of children with asthma to infection, these findings reinforce the need for yearly influenza vaccination to prevent infection, and raise new questions about the mechanism for enhanced susceptibility to influenza infection in asthma.
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Affiliation(s)
- Kirsten M Kloepfer
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin, USA.
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Davies JM, Carroll ML, Li H, Poh AM, Kirkegard D, Towers M, Upham JW. Budesonide and formoterol reduce early innate anti-viral immune responses in vitro. PLoS One 2011; 6:e27898. [PMID: 22125636 PMCID: PMC3220700 DOI: 10.1371/journal.pone.0027898] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 10/27/2011] [Indexed: 11/22/2022] Open
Abstract
Asthma is a chronic inflammatory airways disease in which respiratory viral infections frequently trigger exacerbations. Current treatment of asthma with combinations of inhaled corticosteroids and long acting beta2 agonists improves asthma control and reduces exacerbations but what impact this might have on innate anti-viral immunity is unclear. We investigated the in vitro effects of asthma drugs on innate anti-viral immunity. Peripheral blood mononuclear cells (PBMC) from healthy and asthmatic donors were cultured for 24 hours with the Toll-like receptor 7 agonist, imiquimod, or rhinovirus 16 (RV16) in the presence of budesonide and/or formoterol. Production of proinflammatory cytokines and expression of anti-viral intracellular signalling molecules were measured by ELISA and RT-PCR respectively. In PBMC from healthy donors, budesonide alone inhibited IP-10 and IL-6 production induced by imiquimod in a concentration-dependent manner and the degree of inhibition was amplified when budesonide and formoterol were used in combination. Formoterol alone had little effect on these parameters, except at high concentrations (10−6 M) when IL-6 production increased. In RV16 stimulated PBMC, the combination of budesonide and formoterol inhibited IFNα and IP-10 production in asthmatic as well as healthy donors. Combination of budesonide and formoterol also inhibited RV16-stimulated expression of the type I IFN induced genes myxovirus protein A and 2′, 5′ oligoadenylate synthetise. Notably, RV16 stimulated lower levels of type Myxovirus A and oligoadenylate synthase in PBMC of asthmatics than control donors. These in vitro studies demonstrate that combinations of drugs commonly used in asthma therapy inhibit both early pro-inflammatory cytokines and key aspects of the type I IFN pathway. These findings suggest that budesonide and formoterol curtail excessive inflammation induced by rhinovirus infections in patients with asthma, but whether this inhibits viral clearance in vivo remains to be determined.
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Affiliation(s)
- Janet M Davies
- Lung and Allergy Research Centre, School of Medicine, The University of Queensland, Princess Alexandra Hospital Clinical Division, Woolloongabba, Queensland, Australia.
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Abstract
Viral infections affect wheezing and asthma in children and adults of all ages. In infancy, wheezing illnesses are usually viral in origin, and children with more severe wheezing episodes are more likely to develop recurrent episodes of asthma and to develop asthma later in childhood. Children who develop allergen-specific immunoglobulin E (allergic sensitization) and those who wheeze with human rhinoviruses (HRV) are at especially high risk for asthma. In older children and adults, HRV infections generally cause relatively mild respiratory illnesses and yet contribute to acute and potentially severe exacerbations in patients with asthma. These findings underline the importance of understanding the synergistic nature of allergic sensitization and infections with HRV in infants relative to the onset of asthma and in children and adults with respect to exacerbations of asthma. This review discusses clinical and experimental evidence of virus-allergen interactions and evaluates theories which relate immunologic responses to respiratory viruses and allergens to the pathogenesis and disease activity of asthma. Greater understanding of the relationship between viral respiratory infections, allergic inflammation, and asthma is likely to suggest new strategies for the prevention and treatment of asthma.
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Affiliation(s)
- Monica L. Gavala
- Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin‐Madison, Madison, WI, USA
| | - Paul J. Bertics
- Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin‐Madison, Madison, WI, USA
| | - James E. Gern
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin‐Madison, Madison, WI, USA
- Department of Medicine, School of Medicine and Public Health, University of Wisconsin‐Madison, Madison, WI, USA
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Kato M, Yamada Y, Maruyama K, Hayashi Y. Differential effects of corticosteroids on serum eosinophil cationic protein and cytokine production in rhinovirus- and respiratory syncytial virus-induced acute exacerbation of childhood asthma. Int Arch Allergy Immunol 2011; 155 Suppl 1:77-84. [PMID: 21646800 DOI: 10.1159/000327434] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Little information is available on eosinophil activation and the cytokine profile in virus-induced acute exacerbation of bronchial asthma; therefore, we examined the effects of treatments that included systemic corticosteroids on serum eosinophil cationic protein (ECP) and 17 cytokines/chemokines in rhinovirus- and respiratory syncytial (RS) virus-induced acute exacerbation of childhood asthma. METHODS We measured the peripheral eosinophil count, as well as the serum levels of ECP and 17 types of cytokines/chemokines (IL-1β, 2, 4, 5, 6, 7, 8, 10, 12, 13, and 17 and IFN-γ, TNF-α, GM-CSF, G-CSF, MCP-1, and MIP-1β), using a multiplex bead-based assay in 21 cases of rhinovirus- and 12 cases of RS virus-induced acute exacerbation of childhood asthma and 13 controls. We also compared the clinical data and the effects of systemic corticosteroids on these responses between rhinovirus and RS virus groups. RESULTS The serum levels of ECP, IL-5, and IL-6 were significantly elevated in patients with rhinovirus-induced acute exacerbation of asthma compared with controls, while serum IL-1β and IFN-γ were significantly lower in patients with rhinovirus-induced acute exacerbation of asthma than in controls. On the other hand, in RS virus-induced acute exacerbation of asthma, only the peripheral eosinophil count was significantly decreased compared with that in rhinovirus-induced acute exacerbation of asthma and controls. Furthermore, the serum levels of ECP, IL-5, and IL-6 in rhinovirus-induced acute exacerbation of asthma and levels of G-CSF in RS virus-induced acute exacerbation of asthma were significantly reduced after treatments that included systemic corticosteroids, respectively. CONCLUSION These results suggest that the effects of systemic corticosteroids on serum ECP and the cytokine profile are different between rhinovirus- and RS virus-induced acute exacerbation of childhood asthma.
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Affiliation(s)
- Masahiko Kato
- Department of Allergy and Immunology, Gunma Children's Medical Center, Shibukawa, Japan.
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Adaptive immunity to rhinoviruses: sex and age matter. Respir Res 2010; 11:184. [PMID: 21194432 PMCID: PMC3024249 DOI: 10.1186/1465-9921-11-184] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Accepted: 12/31/2010] [Indexed: 11/10/2022] Open
Abstract
Background Rhinoviruses (RV) are key triggers in acute asthma exacerbations. Previous studies suggest that men suffer from infectious diseases more frequently and with greater severity than women. Additionally, the immune response to most infections and vaccinations decreases with age. Most immune function studies do not account for such differences, therefore the aim of this study was to determine if the immune response to rhinovirus varies with sex or age. Methods Blood mononuclear cells were isolated from 63 healthy individuals and grouped by sex and age (≤50 years old and ≥52 years old). Cells were cultured with rhinovirus 16 at a multiplicity of infection of 1. The chemokine IP-10 was measured at 24 h as an index of innate immunity while IFNγ and IL-13 were measured at 5 days as an index of adaptive immunity. Results Rhinovirus induced IFNγ and IL-13 was significantly higher in ≤50 year old women than in age matched men (p < 0.02 and p < 0.05) and ≥52 year old women (p < 0.02 and p > 0.005). There was no sex or age based difference in rhinovirus induced IP-10 expression. Both IFNγ and IL-13 were negatively correlated with age in women but not in men. Conclusions This study suggests that pre-menopausal women have a stronger adaptive immune response to rhinovirus infection than men and older people, though the mechanisms responsible for these differences remain to be determined. Our findings highlight the importance of gender and age balance in clinical studies and in the development of new treatments and vaccines.
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Jackson DJ, Lemanske RF. The role of respiratory virus infections in childhood asthma inception. Immunol Allergy Clin North Am 2010; 30:513-22, vi. [PMID: 21029935 PMCID: PMC2966844 DOI: 10.1016/j.iac.2010.08.004] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Daniel J Jackson
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53792, USA.
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Abstract
Viral respiratory tract infections are common and usually selflimited illnesses. For patients at risk of asthma, or with existing asthma, viral respiratory tract infections can have a profound effect on the expression of disease or loss of control. New evidence has shown that wheezing episodes early in life due to human rhinoviruses are a major risk factor for the later diagnosis of asthma at age 6 years. For those with existing asthma, exacerbations are a major cause of morbidity, can need acute care, and can, albeit rarely, result in death. Viral respiratory tract infections, predominantly those caused by human rhinoviruses, are associated with asthma exacerbations. There is also evidence that deficiencies in antiviral activity and the integrity of the airway epithelial barrier could make individuals with asthma more likely to have severe viral respiratory infections of the lower airway, and thus increase the risk of exacerbation. In view of the effect of respiratory viruses on many aspects of asthma, efforts to understand the mechanisms and risk factors by which these airway infections cause changes in airway pathophysiology are a first step towards improved treatment.
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Affiliation(s)
- William W Busse
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
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Arden KE, Mackay IM. Newly identified human rhinoviruses: molecular methods heat up the cold viruses. Rev Med Virol 2010; 20:156-76. [PMID: 20127751 PMCID: PMC7169101 DOI: 10.1002/rmv.644] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Human rhinovirus (HRV) infections cause at least 70% of virus‐related wheezing exacerbations and cold and flu‐like illnesses. They are associated with otitis media, sinusitis and pneumonia. Annually, the economic impact of HRV infections costs billions in healthcare and lost productivity. Since 1987, 100 officially recognised HRV serotypes reside in two genetically distinct species; HRV A and HRV B, within the genus Enterovirus, family Picornaviridae. Sequencing of their ∼7kb genomes was finalised in 2009. Since 1999, many globally circulating, molecularly‐defined ‘strains’, perhaps equivalent to novel serotypes, have been discovered but remain uncharacterised. Many of these currently unculturable strains have been assigned to a proposed new species, HRV C although confusion exists over the membership of the species. There has not been sufficient sampling to ensure the identification of all strains and no consensus criteria exist to define whether clinical HRV detections are best described as a distinct strain or a closely related variant of a previously identified strain (or serotype). We cannot yet robustly identify patterns in the circulation of newly identified HRVs (niHRVs) or the full range of associated illnesses and more data are required. Many questions arise from this new found diversity: what drives the development of so many distinct viruses compared to other species of RNA viruses? What role does recombination play in generating this diversity? Are there species‐ or strain‐specific circulation patterns and clinical outcomes? Are divergent strains sensitive to existing capsid‐binding antivirals? This update reviews the findings that trigger these and other questions arising during the current cycle of intense rhinovirus discovery. Copyright © 2010 John Wiley & Sons, Ltd.
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Affiliation(s)
- Katherine E Arden
- Qpid Laboratory, Sir Albert Sakzewski Virus Research Centre, Queensland Children's Medical Research Institute, Royal Children's Hospital, Queensland, Australia
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41
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Grześk E, Kołtan S, Dębski R, Wysocki M, Gruszka M, Kubicka M, Kołtan A, Grześk G, Manysiak S, Odrowąż-Sypniewska G. Concentrations of IL-15, IL-18, IFN-γ and activity of CD4 +, CD8 + and NK cells at admission in children with viral bronchiolitis. Exp Ther Med 2010; 1:873-877. [PMID: 22993612 DOI: 10.3892/etm.2010.119] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Accepted: 07/01/2010] [Indexed: 12/22/2022] Open
Abstract
The pathogenesis of viral bronchiolitis is poorly understood. The aim of this study was to analyze interleukin (IL)-15, IL-18 and interferon (IFN)-γ concentrations and the activity of NK cells and CD4+ and CD8+ lymphocytes in 23 children not older than 30 months of age with acute viral bronchiolitis using blood samples drawn within the first 24 h of their hospital admission, in comparison to a healthy group. In children with bronchiolitis, the mean concentrations of IL-15, IL-18 and IFN-γ were 9.39±11.55, 884.03±645.44 and 17.92±27.14 pg/ml, respectively, and were significantly higher than those in the control group [2.34±0.61 pg/ml (p<0.05), 248.69±98.73 pg/ml (p<0.001) and 2.75±1.72 pg/ml (p<0.005), respectively]. In the bronchiolitis group, mean z-scores were -1.15±1.9 for CD4+ cells and -0.9±1.23 for CD8+ cells; these scores were significantly lower than those of the general Polish population (p<0.001 and <0.01, respectively). However, the mean z-score of the ratio of CD4+/CD8+ and the NK cell count in children with bronchiolitis did not differ significantly from those of the controls. In conclusion, cytokines such as IL-15, IL-18 and IFN-γ play a role in the pathogenesis of bronchiolitis in children.
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Affiliation(s)
| | | | | | | | - Marzena Gruszka
- Laboratory Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-094 Bydgoszcz, Poland
| | | | | | | | - Sławomir Manysiak
- Laboratory Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-094 Bydgoszcz, Poland
| | - Grażyna Odrowąż-Sypniewska
- Laboratory Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-094 Bydgoszcz, Poland
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42
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Zhang D, Xia J, Chen X. Time Trends of Th1 and Th2 Cytokines in Induced Sputum of Asthmatic Subjects During Acute Upper Respiratory Viral Infections. ARCHIVOS DE BRONCONEUMOLOGÍA ((ENGLISH EDITION)) 2010. [PMID: 20573437 PMCID: PMC7129655 DOI: 10.1016/s1579-2129(10)70113-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bosco A, Ehteshami S, Stern DA, Martinez FD. Decreased activation of inflammatory networks during acute asthma exacerbations is associated with chronic airflow obstruction. Mucosal Immunol 2010; 3:399-409. [PMID: 20336062 PMCID: PMC2891355 DOI: 10.1038/mi.2010.13] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Asthma exacerbations are associated with subsequent deficits in lung function. Here, we tested the hypothesis that a specific pattern of inflammatory responses during acute exacerbations may be associated with chronic airway obstruction. Gene coexpression networks were characterized in induced sputum obtained during an acute exacerbation, from asthmatic children with or without chronic airflow limitation. The data showed that activation of Th1-like/cytotoxic and interferon signaling pathways during acute exacerbations was decreased in asthmatic children with deficits in baseline lung function. These associations were independent of the identification of picornaviruses in nasal secretions or the use of medications at the time of the exacerbation. Th2-related pathways were also detected in the responses, but variations in these pathways were not related to chronic airways obstruction. Our findings show that decreased activation of Th1-like/cytotoxic and interferon pathways is a hallmark of acute exacerbation responses in asthmatic children with evidence of chronic airways obstruction.
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Affiliation(s)
- Anthony Bosco
- Arizona Respiratory Center, College of Medicine, and BIO5 Institute, University of Arizona
| | - Samira Ehteshami
- Arizona Respiratory Center, College of Medicine, and BIO5 Institute, University of Arizona
| | - Debra A. Stern
- Arizona Respiratory Center, College of Medicine, and BIO5 Institute, University of Arizona
| | - Fernando D. Martinez
- Arizona Respiratory Center, College of Medicine, and BIO5 Institute, University of Arizona
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Eosinophil differentiation in the bone marrow is inhibited by T cell-derived IFN-gamma. Blood 2010; 116:2559-69. [PMID: 20587787 DOI: 10.1182/blood-2009-12-261339] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
To explore whether and how T cells can affect myelopoiesis, we investigated myeloid differentiation in a model for T cell-mediated immune activation. We found that CD70-transgenic (CD70TG) mice, which have elevated numbers of interferon-γ (IFN-γ)-producing effector T cells in the periphery and bone marrow, are almost devoid of eosinophilic granulocytes. Induction of allergic airway inflammation in these mice failed to induce eosinophilia as well as airway hyperresponsiveness. CD70TG mice also have strongly reduced numbers of eosinophil lineage-committed progenitors, whereas granulocyte/macrophage progenitors from these mice are unable to generate eosinophils in vitro. We found that granulocyte/macrophage progenitors express IFN-γR1 and that IFN-γ is sufficient to inhibit eosinophil differentiation of both murine and human progenitor cells in vitro. We demonstrate that inhibition of eosinophil development in CD70TG mice is IFN-γ-dependent and that T cell-derived IFN-γ is sufficient to inhibit eosinophil formation in vivo. Finally, we found that IFN-γ produced on anti-CD40 treatment and during viral infection can also suppress eosinophil formation in wild-type mice. These data demonstrate that IFN-γ inhibits the differentiation of myeloid progenitors to eosinophils, indicating that the adaptive immune system plays an important role in orchestrating the formation of the appropriate type of myeloid cells during immune activation.
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45
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Zhang D, Xia J, Chen X. [Time trends of Th1 and th2 cytokines in induced sputum of asthmatic subjects during acute upper respiratory viral infections]. Arch Bronconeumol 2010; 46:459-65. [PMID: 20573437 PMCID: PMC7115775 DOI: 10.1016/j.arbres.2010.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Revised: 03/08/2010] [Accepted: 04/23/2010] [Indexed: 01/09/2023]
Abstract
Fundamento Muchas de las exacerbaciones del asma se deben a infecciones víricas de las vías respiratorias que inducen una interacción de respuestas inmunitarias entre Th1 y Th2. Sin embargo, las tendencias temporales de estas respuestas durante estos fenómenos no se han estudiado con detalle. Objetivo Identificar los posibles mecanismos subyacentes de la relación entre las infecciones víricas respiratorias y las exacerbaciones del asma. Pacientes y métodos Seleccionamos 40 adultos, de 21–58 años de edad, en 4 grupos: A, sanos; B, sanos con infección vírica; C, con asma leve o moderada, y D, igual que C pero con infección vírica. Durante el curso de una infección vírica aguda de las vías respiratorias superiores se monitorizaron las citocinas Th1 y Th2 en muestras de esputo inducido en individuos por lo demás sanos y en pacientes asmáticos. La interleucina (IL) 4, la IL-5 y el interferón gamma (IFN-γ) se analizaron mediante un método ELISA. Se monitorizaron las puntuaciones de los síntomas de infección vírica y de gravedad del asma. Las tendencias temporales se analizaron mediante la utilización de modelos mixtos lineales. Resultados En los grupos C y D los valores de IL-4 e IL-5 fueron mayores que en los grupos A y B. En el grupo B, los valores de IFN-γ y las puntuaciones de síntomas de infección vírica fueron máximos en el día 2 y disminuyeron rápidamente en el día 7, mientras que en el grupo D los valores de IFN-γ y las puntuaciones de síntomas de infección vírica y de asma alcanzaron un máximo mucho más tarde (días 3–5) y disminuyeron lentamente. En el grupo D, los cocientes IL-4 e IL-5:IFN-γ fueron significativamente más altos que en el grupo C. Conclusiones Las exacerbaciones del asma inducidas por las infecciones pueden deberse a un deterioro de las respuestas inmunitarias antivíricas Th1. Parece identificarse un intervalo decisivo de 3–5 días para instaurar una intervención terapéutica.
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Affiliation(s)
- Ding Zhang
- Department of Respiratory Disease, Huashan Hospital, Fudan University, Shanghai, China
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46
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Guilbert TW, Denlinger LC. Role of infection in the development and exacerbation of asthma. Expert Rev Respir Med 2010; 4:71-83. [PMID: 20305826 DOI: 10.1586/ers.09.60] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Respiratory infections are associated with wheezing illnesses in all ages and may also impact the development and severity of asthma. Respiratory tract infections caused by viruses, Chlamydophila or Mycoplasma have been hypothesized to have significant roles in the pathogenesis of asthma. Progress is being made toward establishing the mechanisms by which these agents can cause acute wheezing and impact the pathophysiology of asthma. Host factors probably contribute to the risk of asthma inception and exacerbation, and these contributions may also vary with respect to early- versus adult-onset disease. This review discusses these various associations as they pertain to the development and exacerbation of asthma.
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Affiliation(s)
- Theresa W Guilbert
- Department of Pediatrics, University of Wisconsin School of Medicine & Public Health, 600 Highland Avenue, K4/944, CSC-4108, Madison, WI 53792, USA.
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Jartti T, Paul-Anttila M, Lehtinen P, Parikka V, Vuorinen T, Simell O, Ruuskanen O. Systemic T-helper and T-regulatory cell type cytokine responses in rhinovirus vs. respiratory syncytial virus induced early wheezing: an observational study. Respir Res 2009; 10:85. [PMID: 19781072 PMCID: PMC2762974 DOI: 10.1186/1465-9921-10-85] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2009] [Accepted: 09/25/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Rhinovirus (RV) associated early wheezing has been recognized as an independent risk factor for asthma. The risk is more important than that associated with respiratory syncytial virus (RSV) disease. No comparative data are available on the immune responses of these diseases. OBJECTIVE To compare T-helper1 (Th1), Th2 and T-regulatory (Treg) cell type cytokine responses between RV and RSV induced early wheezing. METHODS Systemic Th1-type (interferon [IFN] -gamma, interleukin [IL] -2, IL-12), Th2-type (IL-4, IL-5, IL-13) and Treg-type (IL-10) cytokine responses were studied from acute and convalescence phase serum samples of sole RV (n = 23) and RSV affected hospitalized wheezing children (n = 27). The pre-defined inclusion criteria were age of 3-35 months and first or second wheezing episode. Analysis was adjusted for baseline differences. Asymptomatic children with comparable demographics (n = 11) served as controls for RV-group. RESULTS RV-group was older and had more atopic characteristics than RSV-group. At acute phase, RV-group had higher (fold change) IL-13 (39-fold), IL-12 (7.5-fold), IFN-gamma (6.0-fold) and IL-5 (2.8-fold) concentrations than RSV-group and higher IFN-gamma (27-fold), IL-2 (8.9-fold), IL-5 (5.6-fold) and IL-10 (2.6-fold) than the controls. 2-3 weeks later, RV-group had higher IFN-gamma (>100-fold), IL-13 (33-fold) and IL-10 (6.5-fold) concentrations than RSV-group and higher IFN-gamma (15-fold) and IL-2 (9.4-fold) than the controls. IL-10 levels were higher in acute phase compared to convalescence phase in both infections (p < 0.05 for all). CONCLUSION Our results support a hypothesis that RV is likely to trigger wheezing mainly in children with a predisposition. IL-10 may have important regulatory function in acute viral wheeze.
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Affiliation(s)
- Tuomas Jartti
- Department of Pediatrics, Turku University Hospital, Turku, Finland.
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48
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Abadoglu O, Engin A. The frequency of self-reported allergic diseases in patients with crimean-congo haemorrhagic fever. Allergol Immunopathol (Madr) 2009; 37:234-8. [PMID: 19775796 DOI: 10.1016/j.aller.2009.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2009] [Revised: 03/04/2009] [Accepted: 03/05/2009] [Indexed: 11/30/2022]
Abstract
BACKGROUND Crimean-Congo haemorrhagic fever (CCHF) is an acute, tick-borne viral disease. In temperate areas, CCHF cases occur between spring and early autumn when tick activity is high. This period is also the pollen season during which symptoms of allergic diseases are exacerbated. Viruses induce inflammatory and antiviral responses by binding to specific receptors on the surface of airway epithelial cells, resulting in activation of innate immune responses; release of mediators such as cytokines and chemokines; and recruitment of neutrophils and mononuclear cells to the area. AIM We aimed to evaluate the frequency of self-reported allergic diseases and the effect on CCHF severity. METHOD Between June and August 2008, a questionnaire was applied to 114 CCHF (+) patients and 122 healthy control subjects, 16 to 88 years old who attended the Infectious Diseases clinic and were hospitalised with CCHF suspected, by face to face interview including history of allergic rhinitis (AR), asthma symptoms and nonspecific bronchial reactivity, doctor diagnosed AR and/or asthma, and familial allergic diseases history. RESULTS According to PCR and/or enzyme-linked immunoassay (ELISA) results, 51.7% of patients (n=114) had CCHF. There was no significant relation between CCHF and history of AR, asthma symptoms and nonspecific bronchial reactivity, doctor diagnosed AR and/or asthma, and familial allergic diseases history. The severity of CCHF has not affected these parameters (p>.05). Of patients with positive CCHF test, 2.6% (n=3) and 3.5% (n=4) had doctor diagnosed AR and asthma, respectively. CONCLUSION Self-reported allergic diseases and CCHF are not related with each other.
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MESH Headings
- Adolescent
- Adult
- Aged
- Cell Movement
- Cytokines/metabolism
- Female
- Hemorrhagic Fever Virus, Crimean-Congo/immunology
- Hemorrhagic Fever Virus, Crimean-Congo/pathogenicity
- Hemorrhagic Fever, Crimean/complications
- Hemorrhagic Fever, Crimean/epidemiology
- Hemorrhagic Fever, Crimean/immunology
- Hemorrhagic Fever, Crimean/pathology
- Hemorrhagic Fever, Crimean/physiopathology
- Humans
- Immunity, Innate
- Leukocytes, Mononuclear/metabolism
- Leukocytes, Mononuclear/pathology
- Male
- Middle Aged
- Neutrophils/metabolism
- Neutrophils/pathology
- Prevalence
- Respiratory Mucosa/immunology
- Respiratory Mucosa/metabolism
- Respiratory Mucosa/pathology
- Respiratory Mucosa/virology
- Rhinitis, Allergic, Seasonal/complications
- Rhinitis, Allergic, Seasonal/epidemiology
- Rhinitis, Allergic, Seasonal/immunology
- Rhinitis, Allergic, Seasonal/pathology
- Rhinitis, Allergic, Seasonal/physiopathology
- Seasons
- Self Disclosure
- Surveys and Questionnaires
- Virus Attachment
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Affiliation(s)
- O Abadoglu
- Cumhuriyet University, Faculty of Medicine, Chest Diseases Dept., Allergic Diseases Subdept., Sivas, Turkey.
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49
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Abstract
Rackemann described the 'intrinsic asthma' population over 50 years ago as a unique subgroup that was characterized by onset of progressive loss of lung function beginning later in life, possibly after a respiratory infection. It has also been associated with a female predominance, aspirin-sensitive bronchospasm, and nasal polyposis. While the aetiology is not understood, we propose that persistent respiratory infections play a central role in the development of intrinsic asthma.
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Affiliation(s)
- P E Dahlberg
- Section of Allergy, Pulmonary and Critical Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
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Nakagome K, Okunishi K, Imamura M, Harada H, Matsumoto T, Tanaka R, Miyazaki JI, Yamamoto K, Dohi M. IFN-γ Attenuates Antigen-Induced Overall Immune Response in the Airway As a Th1-Type Immune Regulatory Cytokine. THE JOURNAL OF IMMUNOLOGY 2009; 183:209-20. [DOI: 10.4049/jimmunol.0802712] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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