1
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Fraga-Silva TFDC, Boko MMM, Martins NS, Cetlin AA, Russo M, Vianna EO, Bonato VLD. Asthma-associated bacterial infections: Are they protective or deleterious? THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2023; 2:14-22. [PMID: 37780109 PMCID: PMC10510013 DOI: 10.1016/j.jacig.2022.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 08/04/2022] [Accepted: 08/09/2022] [Indexed: 10/03/2023]
Abstract
Eosinophilic, noneosinophilic, or mixed granulocytic inflammations are the hallmarks of asthma heterogeneity. Depending on the priming of lung immune and structural cells, subjects with asthma might generate immune responses that are TH2-prone or TH17-prone immune response. Bacterial infections caused by Haemophilus, Moraxella, or Streptococcus spp. induce the secretion of IL-17, which in turn recruit neutrophils into the airways. Clinical studies and experimental models of asthma indicated that neutrophil infiltration induces a specific phenotype of asthma, characterized by an impaired response to corticosteroid treatment. The understanding of pathways that regulate the TH17-neutrophils axis is critical to delineate and develop host-directed therapies that might control asthma and its exacerbation episodes that course with infectious comorbidities. In this review, we outline clinical and experimental studies on the role of airway epithelial cells, S100A9, and high mobility group box 1, which act in concert with the IL-17-neutrophil axis activated by bacterial infections, and are related with asthma that is difficult to treat. Furthermore, we report critically our view in the light of these findings in an attempt to stimulate further investigations and development of immunotherapies for the control of severe asthma.
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Affiliation(s)
| | - Mèdéton Mahoussi Michaël Boko
- Basic and Applied Immunology Program, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Núbia Sabrina Martins
- Basic and Applied Immunology Program, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Andrea Antunes Cetlin
- Pulmonary Division, Department of Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Momtchilo Russo
- Department of Immunology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Elcio Oliveira Vianna
- Pulmonary Division, Department of Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Vania Luiza Deperon Bonato
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
- Basic and Applied Immunology Program, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
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2
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Regulatory T cells and vaccine effectiveness in older adults. Challenges and prospects. Int Immunopharmacol 2021; 96:107761. [PMID: 34162139 DOI: 10.1016/j.intimp.2021.107761] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/24/2021] [Accepted: 05/04/2021] [Indexed: 12/21/2022]
Abstract
Since the discovery of lymphocytes with immunosuppressive activity, increasing interest has arisen in their possible influence on the immune response induced by vaccines. Regulatory T cells (Tregs) are essential for maintaining peripheral tolerance, preventing autoimmune diseases, and limiting chronic inflammatory diseases. However, they also limit beneficial immune responses by suppressing anti-infectious and anti-tumor immunity. Mounting evidence suggests that Tregs are involved, at least in part, in the low effectiveness of immunization against various diseases where it has been difficult to obtain protective vaccines. Interestingly, increased activity of Tregs is associated with aging, suggesting a key role for these cells in the lower vaccine effectiveness observed in older people. In this review, we analyze the impact of Tregs on vaccination, with a focus on older adults. Finally, we address an overview of current strategies for Tregs modulation with potential application to improve the effectiveness of future vaccines targeting older populations.
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3
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Zhou P, Zheng T, Li Y, Zhang X, Feng J, Wei Y, Wang H, Yao Y, Gong F, Tian W, Sun L, Liu Z, Zhao B, Yu D. Chlorinated Flame-Retardant Dechlorane 602 Potentiates Type 2 Innate Lymphoid Cells and Exacerbates Airway Inflammation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:1099-1109. [PMID: 33377767 DOI: 10.1021/acs.est.0c03758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chlorinated flame-retardant dechloranes are emerging substitutes for restricted flame retardants. Recent studies have demonstrated that they are accumulated in wildlife and detectable in humans; however, their effects on human health are poorly understood. Here, for the first time, we revealed that widely used chlorinated flame-retardant dechlorane 602 (Dec 602) exacerbated airway inflammation in two mouse models induced by house dust mite (HDM) or IL-33, respectively. Deteriorated airway inflammation by Dec 602 was associated with a higher production of type 2 cytokines including IL-4, IL-5, and IL-13, and IgE, accompanied by enhanced mRNA expression of proinflammatory cytokines such as TNF-α and IL-6. Mechanistically, we found that Dec 602 directly potentiated mouse and human group 2 innate lymphoid cells and, as such, promoted airway inflammation even in the absence of conventional T cells in Rag -/- mice. These findings provide novel immunological insights necessary for further studies of the health impact of emerging flame-retardant dechloranes including Dec 602.
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Affiliation(s)
- Pengcheng Zhou
- Laboratory of Immunology for Environment and Health, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, Australian National University, Canberra, ACT 0200, Australia
- The University of Queensland Diamantina Institute, Translational Research Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4102, Australia
| | - Ting Zheng
- Laboratory of Immunology for Environment and Health, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Yunping Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100864, China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Xin Zhang
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Jinhong Feng
- Laboratory of Immunology for Environment and Health, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Yunbo Wei
- Laboratory of Immunology for Environment and Health, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Hao Wang
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, Australian National University, Canberra, ACT 0200, Australia
| | - Yin Yao
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
- The University of Queensland Diamantina Institute, Translational Research Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4102, Australia
| | - Fang Gong
- Department of Laboratory Medicine, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Wenjing Tian
- Laboratory of Immunology for Environment and Health, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Lingyun Sun
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Zheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Bin Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100864, China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Di Yu
- Laboratory of Immunology for Environment and Health, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, Australian National University, Canberra, ACT 0200, Australia
- The University of Queensland Diamantina Institute, Translational Research Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4102, Australia
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4
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Paudel KR, Dharwal V, Patel VK, Galvao I, Wadhwa R, Malyla V, Shen SS, Budden KF, Hansbro NG, Vaughan A, Yang IA, Kohonen-Corish MRJ, Bebawy M, Dua K, Hansbro PM. Role of Lung Microbiome in Innate Immune Response Associated With Chronic Lung Diseases. Front Med (Lausanne) 2020; 7:554. [PMID: 33043031 PMCID: PMC7530186 DOI: 10.3389/fmed.2020.00554] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 08/03/2020] [Indexed: 12/13/2022] Open
Abstract
Respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), lung fibrosis, and lung cancer, pose a huge socio-economic burden on society and are one of the leading causes of death worldwide. In the past, culture-dependent techniques could not detect bacteria in the lungs, therefore the lungs were considered a sterile environment. However, the development of culture-independent techniques, particularly 16S rRNA sequencing, allowed for the detection of commensal microbes in the lung and with further investigation, their roles in disease have since emerged. In healthy individuals, the predominant commensal microbes are of phylum Firmicutes and Bacteroidetes, including those of the genera Veillonella and Prevotella. In contrast, pathogenic microbes (Haemophilus, Streptococcus, Klebsiella, Pseudomonas) are often associated with lung diseases. There is growing evidence that microbial metabolites, structural components, and toxins from pathogenic and opportunistic bacteria have the capacity to stimulate both innate and adaptive immune responses, and therefore can contribute to the pathogenesis of lung diseases. Here we review the multiple mechanisms that are altered by pathogenic microbiomes in asthma, COPD, lung cancer, and lung fibrosis. Furthermore, we focus on the recent exciting advancements in therapies that can be used to restore altered microbiomes in the lungs.
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Affiliation(s)
- Keshav Raj Paudel
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Vivek Dharwal
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Vyoma K Patel
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Izabela Galvao
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Ridhima Wadhwa
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Vamshikrishna Malyla
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Sj Sijie Shen
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Kurtis F Budden
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW, Australia
| | - Nicole G Hansbro
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Annalicia Vaughan
- Faculty of Medicine, Thoracic Research Centre, The University of Queensland, Brisbane, QLD, Australia.,Department of Thoracic Medicine, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Ian A Yang
- Faculty of Medicine, Thoracic Research Centre, The University of Queensland, Brisbane, QLD, Australia.,Department of Thoracic Medicine, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Maija R J Kohonen-Corish
- Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia.,School of Medicine, Western Sydney University, Sydney, NSW, Australia.,St George and Sutherland Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - Mary Bebawy
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Kamal Dua
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW, Australia
| | - Philip M Hansbro
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW, Australia
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5
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Th17/IL-17 Axis Regulated by Airway Microbes Get Involved in the Development of Asthma. Curr Allergy Asthma Rep 2020; 20:11. [PMID: 32172346 DOI: 10.1007/s11882-020-00903-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW Bronchial asthma is a common respiratory disease induced by immune imbalance, characterized by chronic non-specific airway inflammation and airway hyperresponsiveness (AHR). Many factors induce asthma, among which respiratory infection is the important cause. In this review, we discuss how respiratory microbes participate in the occurrence and progression of asthma via Th17/IL-17 axis. RECENT FINDINGS Pathogenesis of asthma has been considered as closely related to the imbalance in number and function of Th1/Th2 in the CD4+ T lymphocyte subsets. Recent studies have shown that Th17 cell and its secretory IL-17 also play an important role in AHR. Respiratory virus, bacteria, fungi, and other respiratory microbial infections can directly or indirectly induce the differentiation of Th17 cell and the production of related cytokines to induce AHR. Respiratory microbial infection can affect the TH17/IL-17A axis through a variety of mechanisms, thereby promoting the occurrence and development of asthma, and these specific mechanisms may provide new effective therapeutic ideas for asthma.
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6
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Cissampelos sympodialis and Warifteine Suppress Anxiety-Like Symptoms and Allergic Airway Inflammation in Acute Murine Asthma Model. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s43450-020-00026-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Shukla SD, Walters EH, Simpson JL, Keely S, Wark PA, O'Toole RF, Hansbro PM. Hypoxia‐inducible factor and bacterial infections in chronic obstructive pulmonary disease. Respirology 2019; 25:53-63. [DOI: 10.1111/resp.13722] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 09/25/2019] [Accepted: 10/08/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Shakti D. Shukla
- School of Biomedical Sciences and Pharmacy, Faculty of Health and MedicineUniversity of Newcastle Newcastle NSW Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
| | - E. Haydn Walters
- School of Medicine, College of Health and MedicineUniversity of Tasmania Hobart TAS Australia
| | - Jodie L. Simpson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
- Respiratory and Sleep Medicine, Priority Research Centre for Healthy LungsUniversity of Newcastle Newcastle NSW Australia
| | - Simon Keely
- School of Biomedical Sciences and Pharmacy, Faculty of Health and MedicineUniversity of Newcastle Newcastle NSW Australia
- Priority Research Centre for Digestive Health and Neurogastroenterology, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
| | - Peter A.B. Wark
- Priority Research Centre for Healthy Lungs, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
- Respiratory and Sleep Medicine, Priority Research Centre for Healthy LungsUniversity of Newcastle Newcastle NSW Australia
| | - Ronan F. O'Toole
- School of Molecular Sciences, College of Science, Health and EngineeringLa Trobe University Melbourne VIC Australia
| | - Philip M. Hansbro
- School of Biomedical Sciences and Pharmacy, Faculty of Health and MedicineUniversity of Newcastle Newcastle NSW Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
- Centenary Institute and School of Life Sciences, Faculty of Science, University of Technology Sydney Sydney NSW Australia
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8
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Shukla SD, Shastri MD, Chong WC, Dua K, Budden KF, Mahmood MQ, Hansbro NG, Keely S, Eri R, Patel RP, Peterson GM, Hansbro PM. Microbiome-focused asthma management strategies. Curr Opin Pharmacol 2019; 46:143-149. [PMID: 31357048 DOI: 10.1016/j.coph.2019.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 06/24/2019] [Accepted: 06/24/2019] [Indexed: 12/11/2022]
Abstract
Asthma is a common, heterogeneous and serious disease with high prevalence globally. Poorly controlled, steroid-resistant asthma is particularly important as there are no effective therapies and it exerts substantial healthcare and societal burden. The role of microbiomes, particularly in chronic diseases has generated considerable interest in recent times. Existing evidence clearly demonstrates an association between asthma initiation and the microbiome, both respiratory and gastro-intestinal, although its' roles are poorly understood when assessing the asthma progression or heterogeneity (i.e. phenotypes/endotypes) across different geographical locations. Moreover, modulating microbiomes could be preventive and/or therapeutic in patients with asthma warrants urgent attention. Here, we review recent advances in assessing the role of microbiomes in asthma and present the challenges associated with the potential therapeutic utility of modifying microbiomes in management.
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Affiliation(s)
- Shakti D Shukla
- Priority Research Centre for Healthy Lungs, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute & University of Newcastle, Callaghan, NSW, Australia
| | - Madhur D Shastri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
| | - Wai Chin Chong
- Department of Molecular and Translational Science, Monash University, Clayton, Australia; Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, Australia
| | - Kamal Dua
- Priority Research Centre for Healthy Lungs, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute & University of Newcastle, Callaghan, NSW, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, Australia
| | - Kurtis F Budden
- Priority Research Centre for Healthy Lungs, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute & University of Newcastle, Callaghan, NSW, Australia
| | - Malik Quasir Mahmood
- Medicine, College of Health and Medicine, University of Tasmania, Hobart, Australia
| | - Nicole G Hansbro
- Priority Research Centre for Healthy Lungs, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute & University of Newcastle, Callaghan, NSW, Australia; Centre for inflammation, Centenary Institute, Sydney, and School of Life Sciences, University of Technology, Ultimo, NSW, Australia
| | - Simon Keely
- Priority Research Centre for Healthy Lungs, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute & University of Newcastle, Callaghan, NSW, Australia
| | - Rajaraman Eri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
| | - Rahul P Patel
- Pharmacy, College of Health and Medicine, University of Tasmania, Hobart, Australia
| | - Gregory M Peterson
- Pharmacy, College of Health and Medicine, University of Tasmania, Hobart, Australia
| | - Philip M Hansbro
- Priority Research Centre for Healthy Lungs, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute & University of Newcastle, Callaghan, NSW, Australia; Centre for inflammation, Centenary Institute, Sydney, and School of Life Sciences, University of Technology, Ultimo, NSW, Australia.
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9
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Kim BG, Ghosh P, Ahn S, Rhee DK. Pneumococcal pep27 mutant immunization suppresses allergic asthma in mice. Biochem Biophys Res Commun 2019; 514:210-216. [PMID: 31029416 DOI: 10.1016/j.bbrc.2019.04.116] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 04/16/2019] [Indexed: 10/26/2022]
Abstract
Asthma is an allergic airway disease (AAD) characterized by eosinophilic inflammation, mucus hypersecretion, and airway hyper responsiveness, and it is caused by dysregulated immune responses. Conversely, regulatory T cells (Tregs) control aberrant immune responses and maintain homeostasis. Recent evidence suggests that Streptococcus pneumoniae, including its components as well as a live attenuated mutant, and pneumococcal infection induce Tregs and can thus potentially be harnessed therapeutically for asthma treatment. Previously, a pep27 deletion mutant (Δpep27) demonstrated a significantly attenuated virulence in a sepsis model, and Δpep27 immunization induced serotype-nonspecific protection against S. pneumoniae infection, as well as influenza virus, possibly via an immune tolerance mechanism. Here, the potential of Δpep27 immunization for asthma protection was studied. Mice were immunized intranasally with Δpep27 before or after ovalbumin sensitization and subsequent challenge. Δpep27 immunization suppressed hallmark features of AAD, including antigen-specific type 2 helper T cell cytokine and antibody responses, peripheral and pulmonary eosinophil accumulation, and goblet cell hyperplasia. Thus, a Δpep27 vaccine may be highly feasible as a preventive or therapeutic agent for asthma.
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Affiliation(s)
- Bo-Gyeong Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, South Korea
| | - Prachetash Ghosh
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, South Korea
| | - Saemi Ahn
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, South Korea
| | - Dong-Kwon Rhee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, South Korea.
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10
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The influence of etiological factors on immunoreactivity in patients with community-acquired pneumonia. КЛИНИЧЕСКАЯ ПРАКТИКА 2018. [DOI: 10.17816/clinpract9447-54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The aim of this study was to uncover the characteristics of immunoreactivity in patients with community-acquired pneumonia, depending on the pathogen. The inflammatory process caused by various pathogens, has its own characteristics and affects the course of the disease. The study of the mechanisms of these complex interactions can improve the understanding of the processes occurring in community-acquired pneumonia, and, therefore, develop individual approaches to the therapy depending on the etiological factor.
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11
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Nair PM, Starkey MR, Haw TJ, Ruscher R, Liu G, Maradana MR, Thomas R, O'Sullivan BJ, Hansbro PM. RelB-Deficient Dendritic Cells Promote the Development of Spontaneous Allergic Airway Inflammation. Am J Respir Cell Mol Biol 2018; 58:352-365. [PMID: 28960101 DOI: 10.1165/rcmb.2017-0242oc] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
RelB is a member of the NF-κB family, which is essential for dendritic cell (DC) function and maturation. However, the contribution of RelB to the development of allergic airway inflammation (AAI) is unknown. Here, we identify a pivotal role for RelB in the development of spontaneous AAI that is independent of exogenous allergen exposure. We assessed AAI in two strains of RelB-deficient (RelB-/-) mice: one with a targeted deletion and one expressing a major histocompatibility complex transgene. To determine the importance of RelB in DCs, RelB-sufficient DCs (RelB+/+ or RelB-/-) were adoptively transferred into RelB-/- mice. Both strains had increased pulmonary inflammation compared with their respective wild-type (RelB+/+) and heterozygous (RelB+/-) controls. RelB-/- mice also had increased inflammatory cell influx into the airways, levels of chemokines (CCL2/3/4/5/11/17 and CXCL9/10/13) and T-helper cell type 2-associated cytokines (IL-4/5) in lung tissues, serum IgE, and airway remodeling (mucus-secreting cell numbers, collagen deposition, and epithelial thickening). Transfer of RelB+/- CD11c+ DCs into RelB-/- mice decreased pulmonary inflammation, with reductions in lung chemokines, T-helper cell type 2-associated cytokines (IL-4/5/13/25/33 and thymic stromal lymphopoietin), serum IgE, type 2 innate lymphoid cells, myeloid DCs, γδ T cells, lung Vβ13+ T cells, mucus-secreting cells, airway collagen deposition, and epithelial thickening. These data indicate that RelB deficiency may be a key pathway underlying AAI, and that DC-encoded RelB is sufficient to restore control of this inflammation.
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Affiliation(s)
- Prema M Nair
- 1 Priority Research Centre for Healthy Lungs and.,2 School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
| | - Malcolm R Starkey
- 1 Priority Research Centre for Healthy Lungs and.,3 Priority Research Centre GrowUpWell, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia.,2 School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
| | - Tatt Jhong Haw
- 1 Priority Research Centre for Healthy Lungs and.,2 School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
| | - Roland Ruscher
- 4 Department of Laboratory Medicine and Pathology, and.,5 Center for Immunology, University of Minnesota, Minneapolis, Minnesota; and.,6 Diamantina Institute, Translational Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Gang Liu
- 1 Priority Research Centre for Healthy Lungs and.,2 School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
| | - Muralidhara R Maradana
- 6 Diamantina Institute, Translational Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Ranjeny Thomas
- 6 Diamantina Institute, Translational Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Brendan J O'Sullivan
- 6 Diamantina Institute, Translational Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Philip M Hansbro
- 1 Priority Research Centre for Healthy Lungs and.,2 School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
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12
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Hansbro PM, Kim RY, Starkey MR, Donovan C, Dua K, Mayall JR, Liu G, Hansbro NG, Simpson JL, Wood LG, Hirota JA, Knight DA, Foster PS, Horvat JC. Mechanisms and treatments for severe, steroid-resistant allergic airway disease and asthma. Immunol Rev 2018; 278:41-62. [PMID: 28658552 DOI: 10.1111/imr.12543] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Severe, steroid-resistant asthma is clinically and economically important since affected individuals do not respond to mainstay corticosteroid treatments for asthma. Patients with this disease experience more frequent exacerbations of asthma, are more likely to be hospitalized, and have a poorer quality of life. Effective therapies are urgently required, however, their development has been hampered by a lack of understanding of the pathological processes that underpin disease. A major obstacle to understanding the processes that drive severe, steroid-resistant asthma is that the several endotypes of the disease have been described that are characterized by different inflammatory and immunological phenotypes. This heterogeneity makes pinpointing processes that drive disease difficult in humans. Clinical studies strongly associate specific respiratory infections with severe, steroid-resistant asthma. In this review, we discuss key findings from our studies where we describe the development of representative experimental models to improve our understanding of the links between infection and severe, steroid-resistant forms of this disease. We also discuss their use in elucidating the mechanisms, and their potential for developing effective therapeutic strategies, for severe, steroid-resistant asthma. Finally, we highlight how the immune mechanisms and therapeutic targets we have identified may be applicable to obesity-or pollution-associated asthma.
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Affiliation(s)
- Philip M Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Richard Y Kim
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Malcolm R Starkey
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Chantal Donovan
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Kamal Dua
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jemma R Mayall
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Gang Liu
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Nicole G Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jodie L Simpson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Lisa G Wood
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jeremy A Hirota
- James Hogg Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Darryl A Knight
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Paul S Foster
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jay C Horvat
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
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13
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IL-33/ST2 immune responses to respiratory bacteria in pediatric asthma. Sci Rep 2017; 7:43426. [PMID: 28262704 PMCID: PMC5338274 DOI: 10.1038/srep43426] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 01/24/2017] [Indexed: 12/18/2022] Open
Abstract
Here we investigated the relationship between local bacterial colonization and anti-bacterial immune responses in pre-school asthmatic and control children within the EU-wide study PreDicta. In this cohort of pre-school asthmatic children, nasopharyngeal colonization with Gram-negative bacteria such as Haemophilus influenzae and Moraxella catarrhalis was found to be associated with the highest interferon beta (IFNβ) and IL-33 levels in the nasal pharyngeal fluids (NPF). IL33R-ST2 was found induced in the blood of asthmatic children with additional Gram + bacteria in the nasopharynx (Gr+/−). Furthermore, asthmatic children had more episodes of infection that required antibiotic therapy than the control group. Treatment with antibiotics associated with reduced ST2 in blood cells of both asthmatic and control children and reduced IL-33 levels in the airways of asthmatic children. In the absence of Staphylococcus (S.) aureus in NPF, antibiotic therapy associated with decreased IL-33 levels in the NPF and lower ST2 values in the blood of control children but not of asthmatic children. These data suggest that, in asthmatic children, Gram- bacteria, which persist after antibiotic therapy, contributes to IL-33 locally and associated with Gr + bacteria colonization in the airways, inhibited IFN-β and in the absence of Staphylococcus (S.) aureus, induced ST2 bearing cells in their blood.
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14
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Thorburn AN, Tseng HY, Donovan C, Hansbro NG, Jarnicki AG, Foster PS, Gibson PG, Hansbro PM. TLR2, TLR4 AND MyD88 Mediate Allergic Airway Disease (AAD) and Streptococcus pneumoniae-Induced Suppression of AAD. PLoS One 2016; 11:e0156402. [PMID: 27309732 PMCID: PMC4911048 DOI: 10.1371/journal.pone.0156402] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 05/15/2016] [Indexed: 12/25/2022] Open
Abstract
Background Exposure to non-pathogenic Streptococcus pneumoniae and vaccination are inversely associated with asthma. Studies in animal models demonstrate that airway administration of S. pneumoniae (live or killed), or its vaccines or components, suppresses the characteristic features of asthma in mouse models of allergic airway disease (AAD). These components could be developed into immunoregulatory therapies. S. pneumoniae components are recognized by Toll-like receptors (TLR) 2 and TLR4, and both induce inflammatory cell responses through the adaptor protein myeloid differentiation primary response gene 88 (MyD88). The involvement of TLR2, TLR4 and MyD88 in the pathogenesis of AAD and asthma is incompletely understood, and has not been studied in S. pneumoniae-mediated suppression of AAD. We investigated the role of TLR2, TLR4 and MyD88 in the development of AAD and S. pneumoniae-mediated suppression of AAD. Methods and Findings OVA-induced AAD and killed S. pneumoniae-mediated suppression of AAD were assessed in wild-type, TLR2-/-, TLR4-/-, TLR2/4-/- and MyD88-/- BALB/c mice. During OVA-induced AAD, TLR2, TLR4 and MyD88 were variously involved in promoting eosinophil accumulation in bronchoalveolar lavage fluid and blood, and T-helper type (Th)2 cytokine release from mediastinal lymph node T cells and splenocytes. However, all were required for the induction of airways hyperresponsiveness (AHR). In S. pneumoniae-mediated suppression of AAD, TLR2, TLR4 and MyD88 were variously involved in the suppression of eosinophilic and splenocyte Th2 responses but all were required for the reduction in AHR. Conclusions These results highlight important but complex roles for TLR2, TLR4 and MyD88 in promoting the development of OVA-induced AAD, but conversely in the S. pneumoniae-mediated suppression of AAD, with consistent and major contributions in both the induction and suppression of AHR. Thus, TLR signaling is likely required for both the development of asthma and the suppression of asthma by S. pneumoniae, and potentially other immunoregulatory therapies.
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Affiliation(s)
- Alison N. Thorburn
- The Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
| | - Hsin-Yi Tseng
- The Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
| | - Chantal Donovan
- The Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
| | - Nicole G. Hansbro
- The Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
| | - Andrew G. Jarnicki
- The Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
| | - Paul S. Foster
- The Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
| | - Peter G. Gibson
- The Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
| | - Philip M. Hansbro
- The Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
- * E-mail:
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15
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Kim RY, Horvat JC, Pinkerton JW, Starkey MR, Essilfie AT, Mayall JR, Nair PM, Hansbro NG, Jones B, Haw TJ, Sunkara KP, Nguyen TH, Jarnicki AG, Keely S, Mattes J, Adcock IM, Foster PS, Hansbro PM. MicroRNA-21 drives severe, steroid-insensitive experimental asthma by amplifying phosphoinositide 3-kinase-mediated suppression of histone deacetylase 2. J Allergy Clin Immunol 2016; 139:519-532. [PMID: 27448447 DOI: 10.1016/j.jaci.2016.04.038] [Citation(s) in RCA: 161] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 04/17/2016] [Accepted: 04/29/2016] [Indexed: 12/31/2022]
Abstract
BACKGROUND Severe steroid-insensitive asthma is a substantial clinical problem. Effective treatments are urgently required, however, their development is hampered by a lack of understanding of the mechanisms of disease pathogenesis. Steroid-insensitive asthma is associated with respiratory tract infections and noneosinophilic endotypes, including neutrophilic forms of disease. However, steroid-insensitive patients with eosinophil-enriched inflammation have also been described. The mechanisms that underpin infection-induced, severe steroid-insensitive asthma can be elucidated by using mouse models of disease. OBJECTIVE We sought to develop representative mouse models of severe, steroid-insensitive asthma and to use them to identify pathogenic mechanisms and investigate new treatment approaches. METHODS Novel mouse models of Chlamydia, Haemophilus influenzae, influenza, and respiratory syncytial virus respiratory tract infections and ovalbumin-induced, severe, steroid-insensitive allergic airway disease (SSIAAD) in BALB/c mice were developed and interrogated. RESULTS Infection induced increases in the levels of microRNA (miRNA)-21 (miR-21) expression in the lung during SSIAAD, whereas expression of the miR-21 target phosphatase and tensin homolog was reduced. This was associated with an increase in levels of phosphorylated Akt, an indicator of phosphoinositide 3-kinase (PI3K) activity, and decreased nuclear histone deacetylase (HDAC)2 levels. Treatment with an miR-21-specific antagomir (Ant-21) increased phosphatase and tensin homolog levels. Treatment with Ant-21, or the pan-PI3K inhibitor LY294002, reduced PI3K activity and restored HDAC2 levels. This led to suppression of airway hyperresponsiveness and restored steroid sensitivity to allergic airway disease. These observations were replicated with SSIAAD associated with 4 different pathogens. CONCLUSION We identify a previously unrecognized role for an miR-21/PI3K/HDAC2 axis in SSIAAD. Our data highlight miR-21 as a novel therapeutic target for the treatment of this form of asthma.
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Affiliation(s)
- Richard Y Kim
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Jay C Horvat
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - James W Pinkerton
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Malcolm R Starkey
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Ama T Essilfie
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Jemma R Mayall
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Prema M Nair
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Nicole G Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Bernadette Jones
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Tatt Jhong Haw
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Krishna P Sunkara
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Thi Hiep Nguyen
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Andrew G Jarnicki
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Simon Keely
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Joerg Mattes
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Ian M Adcock
- Airways Disease Section, National Heart & Lung Institute, Imperial College London, London, United Kingdom
| | - Paul S Foster
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Philip M Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia.
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16
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Pulmonary immunity during respiratory infections in early life and the development of severe asthma. Ann Am Thorac Soc 2015; 11 Suppl 5:S297-302. [PMID: 25525736 DOI: 10.1513/annalsats.201402-086aw] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Asthma affects 10% of the population in Westernized countries, being most common in children. It is a heterogeneous condition characterized by chronic allergic airway inflammation, mucus hypersecretion, and airway hyperresponsiveness (AHR) to normally innocuous antigens. Combination therapies with inhaled corticosteroids and bronchodilators effectively manage mild to moderate asthma, but there are no cures, and patients with severe asthma do not respond to these treatments. The inception of asthma is linked to respiratory viral (respiratory syncytial virus, rhinovirus) and bacterial (Chlamydia, Mycoplasma) infections. The examination of mouse models of early-life infections and allergic airway disease (AAD) provides valuable insights into the mechanisms of disease inception that may lead to the development of more effective therapeutics. For example, early-life, but not adult, Chlamydia respiratory infections in mice permanently modify immunity and lung physiology. This increases the severity of AAD by promoting IL-13 expression, mucus hypersecretion, and AHR. We have identified novel roles for tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and IL-13 in promoting infection-induced pathology in early life and subsequent chronic lung disease. Genetic deletion of TRAIL or IL-13 variously protected against neonatal infection-induced inflammation, mucus hypersecretion, altered lung structure, AHR, and impaired lung function. Therapeutic neutralization of these factors prevented infection-induced severe AAD. Other novel mechanisms and avenues for intervention are also being explored. Such studies indicate the immunological mechanisms that may underpin the association between early-life respiratory infections and the development of more severe asthma and may facilitate the development of tailored preventions and treatments.
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17
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Thorburn AN, McKenzie CI, Shen S, Stanley D, Macia L, Mason LJ, Roberts LK, Wong CHY, Shim R, Robert R, Chevalier N, Tan JK, Mariño E, Moore RJ, Wong L, McConville MJ, Tull DL, Wood LG, Murphy VE, Mattes J, Gibson PG, Mackay CR. Evidence that asthma is a developmental origin disease influenced by maternal diet and bacterial metabolites. Nat Commun 2015; 6:7320. [PMID: 26102221 DOI: 10.1038/ncomms8320] [Citation(s) in RCA: 611] [Impact Index Per Article: 67.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 04/27/2015] [Indexed: 12/27/2022] Open
Abstract
Asthma is prevalent in Western countries, and recent explanations have evoked the actions of the gut microbiota. Here we show that feeding mice a high-fibre diet yields a distinctive gut microbiota, which increases the levels of the short-chain fatty acid, acetate. High-fibre or acetate-feeding led to marked suppression of allergic airways disease (AAD, a model for human asthma), by enhancing T-regulatory cell numbers and function. Acetate increases acetylation at the Foxp3 promoter, likely through HDAC9 inhibition. Epigenetic effects of fibre/acetate in adult mice led us to examine the influence of maternal intake of fibre/acetate. High-fibre/acetate feeding of pregnant mice imparts on their adult offspring an inability to develop robust AAD. High fibre/acetate suppresses expression of certain genes in the mouse fetal lung linked to both human asthma and mouse AAD. Thus, diet acting on the gut microbiota profoundly influences airway responses, and may represent an approach to prevent asthma, including during pregnancy.
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Affiliation(s)
- Alison N Thorburn
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Craig I McKenzie
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Sj Shen
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Dragana Stanley
- School of Medical and Applied Sciences, Central Queensland University, Rockhampton, Queensland 4702, Australia
| | - Laurence Macia
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Linda J Mason
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Laura K Roberts
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Connie H Y Wong
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Raymond Shim
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Remy Robert
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Nina Chevalier
- 1] Department of Immunology, Monash University, Clayton, Victoria 3800, Australia [2] Department of Rheumatology and Clinical Immunology, University Medical Center, 79106 Freiburg, Germany
| | - Jian K Tan
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Eliana Mariño
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Rob J Moore
- 1] CSIRO Animal, Food, and Health Sciences, Geelong, Victoria 3220, Australia [2] Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
| | - Lee Wong
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Malcolm J McConville
- 1] Department of Biochemistry and Molecular Biology, Bio21 Institute of Molecular Science and Biotechnology, University of Melbourne, Melbourne, Victoria 3010, Australia [2] Metabolomics Australia, Bio21 Institute of Molecular Sciences and Biotechnology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Dedreia L Tull
- Metabolomics Australia, Bio21 Institute of Molecular Sciences and Biotechnology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Lisa G Wood
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Vanessa E Murphy
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Joerg Mattes
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Peter G Gibson
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Charles R Mackay
- 1] Department of Immunology, Monash University, Clayton, Victoria 3800, Australia [2] Charles Perkins Centre, Sydney University Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
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18
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Hartmann C, Behrendt AK, Henken S, Wölbeling F, Maus UA, Hansen G. Pneumococcal pneumonia suppresses allergy development but preserves respiratory tolerance in mice. Immunol Lett 2015; 164:44-52. [PMID: 25576460 DOI: 10.1016/j.imlet.2014.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 11/09/2014] [Accepted: 12/01/2014] [Indexed: 01/15/2023]
Abstract
Colonization with Streptococcus pneumoniae (S. pneumoniae) is associated with an increased risk for recurrent wheeze and asthma. Killed S. pneumoniae showed some potential as an effective immunomodulatory therapy in a murine model of asthma. Murine studies demonstrated protection against allergic asthma by symbiotic bacteria via triggering regulatory T cell response: treatment with killed S. pneumoniae resulted in suppressed levels of allergen-specific Th2 cytokines, while early immunization generated a protective Th1 response. We investigated the impact of lung infection with live S. pneumoniae on both the development and maintenance of allergic airway inflammation and respiratory tolerance in mice. BALB/c mice were infected intratracheally with S. pneumoniae either prior to or after tolerance or allergy were induced, using ovalbumin (OVA) as model allergen. Infection of mice with S. pneumoniae prior to sensitization or after manifestation of allergic airway inflammation suppressed the development of an allergic phenotype as judged by reduced eosinophil counts in bronchoalveolar lavage fluid, decreased IgE serum levels and Th2 cytokines, relative to non-infected allergic control mice. In contrast, infection of mice with S. pneumoniae after manifestation of allergic airway inflammation combined with late mucosal re-challenge did not affect the allergic response. Moreover, induction and maintenance of respiratory tolerance to OVA challenge were not altered in S. pneumoniae-infected mice, demonstrating that mice remained tolerant to the model allergen and were protected from the development of allergic airway inflammation regardless of the time point of infection. Our results suggest that a bacterial infection may decrease the manifestation of an allergic phenotype not only prior to sensitization but also after manifestation of allergic airway inflammation in mice, whereas both, induction and maintenance of respiratory tolerance are not affected by pneumococcal pneumonia. These data may point to a role for undisturbed development and maintenance of mucosal tolerance for the prevention of allergic inflammation also in humans.
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Affiliation(s)
- Carolin Hartmann
- Hannover Medical School, Department of Pediatrics and Adolescent Medicine, Pediatric Pneumology, Allergology and Neonatology, Hannover, Germany
| | - Ann-Kathrin Behrendt
- Hannover Medical School, Department of Pediatrics and Adolescent Medicine, Pediatric Pneumology, Allergology and Neonatology, Hannover, Germany
| | - Stefanie Henken
- Hannover Medical School, Department of Experimental Pneumology, Hannover, Germany
| | - Florian Wölbeling
- Hannover Medical School, Department of Pediatrics and Adolescent Medicine, Pediatric Pneumology, Allergology and Neonatology, Hannover, Germany
| | - Ulrich A Maus
- Hannover Medical School, Department of Experimental Pneumology, Hannover, Germany
| | - Gesine Hansen
- Hannover Medical School, Department of Pediatrics and Adolescent Medicine, Pediatric Pneumology, Allergology and Neonatology, Hannover, Germany.
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19
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Blevins LK, Wren JT, Holbrook BC, Hayward SL, Swords WE, Parks GD, Alexander-Miller MA. Coinfection with Streptococcus pneumoniae negatively modulates the size and composition of the ongoing influenza-specific CD8⁺ T cell response. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2014; 193:5076-87. [PMID: 25311807 PMCID: PMC4265766 DOI: 10.4049/jimmunol.1400529] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Infection with influenza A virus can lead to increased susceptibility to subsequent bacterial infection, often with Streptococcus pneumoniae. Given the substantial modification of the lung environment that occurs following pathogen infection, there is significant potential for modulation of immune responses. In this study, we show that infection of mice with influenza virus, followed by the noninvasive EF3030 strain of Streptococcus pneumoniae, leads to a significant decrease in the virus-specific CD8(+) T cell response in the lung. Adoptive-transfer studies suggest that this reduction contributes to disease in coinfected animals. The reduced number of lung effector cells in coinfected animals was associated with increased death, as well as a reduction in cytokine production in surviving cells. Further, cells that retained the ability to produce IFN-γ exhibited a decreased potential for coproduction of TNF-α. Reduced cytokine production was directly correlated with a decrease in the level of mRNA. Negative regulation of cells in the mediastinal lymph node was minimal compared with that present in the lung, supporting a model of selective regulation in the tissue harboring high pathogen burden. These results show that entry of a coinfecting pathogen can have profound immunoregulatory effects on an ongoing immune response. Together, these findings reveal a novel dynamic interplay between concurrently infecting pathogens and the adaptive immune system.
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Affiliation(s)
- Lance K Blevins
- Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, NC 27101
| | - John T Wren
- Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, NC 27101
| | - Beth C Holbrook
- Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, NC 27101
| | - Sarah L Hayward
- Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, NC 27101
| | - W Edward Swords
- Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, NC 27101
| | - Griffith D Parks
- Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, NC 27101
| | - Martha A Alexander-Miller
- Department of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, NC 27101
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20
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A role for impaired regulatory T cell function in adverse responses to aluminum adjuvant-containing vaccines in genetically susceptible individuals. Vaccine 2014; 32:5149-55. [PMID: 25066736 DOI: 10.1016/j.vaccine.2014.07.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 06/28/2014] [Accepted: 07/15/2014] [Indexed: 12/14/2022]
Abstract
Regulatory T cells play a critical role in the immune response to vaccination, but there is only a limited understanding of the response of regulatory T cells to aluminum adjuvants and the vaccines that contain them. Available studies in animal models show that although induced T regulatory cells may be induced concomitantly with effector T cells following aluminum-adjuvanted vaccination, they are unable to protect against sensitization, suggesting that under the Th2 immune-stimulating effects of aluminum adjuvants, Treg cells may be functionally compromised. Allergic diseases are characterized by immune dysregulation, with increases in IL-4 and IL-6, both of which exert negative effects on Treg function. For individuals with a genetic predisposition, the beneficial influence of adjuvants on immune responsiveness may be accompanied by immune dysregulation, leading to allergic diseases. This review examines aspects of the regulatory T cell response to aluminum-adjuvanted immunization and possible genetic susceptibility factors related to that response.
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