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Tutino M, Hankinson J, Murray C, Lowe L, Kerry G, Rattray M, Custovic A, Johnston SL, Shi C, Orozco G, Eyre S, Martin P, Simpson A, Curtin JA. Identification of differences in CD4 + T-cell gene expression between people with asthma and healthy controls. Sci Rep 2023; 13:22796. [PMID: 38129444 PMCID: PMC10739740 DOI: 10.1038/s41598-023-49135-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023] Open
Abstract
Functional enrichment analysis of genome-wide association study (GWAS)-summary statistics has suggested that CD4+ T-cells play an important role in asthma pathogenesis. Despite this, CD4+ T-cells are under-represented in asthma transcriptome studies. To fill the gap, 3'-RNA-Seq was used to generate gene expression data on CD4+ T-cells (isolated within 2 h from collection) from peripheral blood from participants with well-controlled asthma (n = 32) and healthy controls (n = 11). Weighted Gene Co-expression Network Analysis (WGCNA) was used to identify sets of co-expressed genes (modules) associated with the asthma phenotype. We identified three modules associated with asthma, which are strongly enriched for GWAS-identified asthma genes, antigen processing/presentation and immune response to viral infections. Through integration of publicly available eQTL and GWAS summary statistics (colocalisation), and protein-protein interaction (PPI) data, we identified PTPRC, a potential druggable target, as a putative master regulator of the asthma gene-expression profiles. Using a co-expression network approach, with integration of external genetic and PPI data, we showed that CD4+ T-cells from peripheral blood from asthmatics have different expression profiles, albeit small in magnitude, compared to healthy controls, for sets of genes involved in immune response to viral infections (upregulated) and antigen processing/presentation (downregulated).
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Affiliation(s)
- Mauro Tutino
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK.
| | - Jenny Hankinson
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
| | - Clare Murray
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
- Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester, UK
| | - Lesley Lowe
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
- Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester, UK
| | - Gina Kerry
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
- Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester, UK
| | - Magnus Rattray
- Division of Informatics, Imaging and Data Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Adnan Custovic
- National Heart and Lung Institute, Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, UK
| | - Sebastian L Johnston
- National Heart and Lung Institute, Asthma UK Centre in Allergic Mechanisms of Asthma, Imperial College London, London, UK
| | - Chenfu Shi
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Gisela Orozco
- Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester, UK
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Stephen Eyre
- Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester, UK
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Paul Martin
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
- The Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Angela Simpson
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
| | - John A Curtin
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
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Colombo SAP, Brown SL, Hepworth MR, Hankinson J, Granato F, Kitchen SJ, Hussell T, Simpson A, Cook PC, MacDonald AS. Comparative phenotype of circulating versus tissue immune cells in human lung and blood compartments during health and disease. Discov Immunol 2023; 2:kyad009. [PMID: 37545765 PMCID: PMC10403752 DOI: 10.1093/discim/kyad009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/31/2023] [Accepted: 07/18/2023] [Indexed: 08/08/2023]
Abstract
The lung is a dynamic mucosal surface constantly exposed to a variety of immunological challenges including harmless environmental antigens, pollutants, and potentially invasive microorganisms. Dysregulation of the immune system at this crucial site is associated with a range of chronic inflammatory conditions including asthma and Chronic Pulmonary Obstructive Disease (COPD). However, due to its relative inaccessibility, our fundamental understanding of the human lung immune compartment is limited. To address this, we performed flow cytometric immune phenotyping of human lung tissue and matched blood samples that were isolated from 115 donors undergoing lung tissue resection. We provide detailed characterization of the lung mononuclear phagocyte and T cell compartments, demonstrating clear phenotypic differences between lung tissue cells and those in peripheral circulation. Additionally, we show that CD103 expression demarcates pulmonary T cells that have undergone recent TCR and IL-7R signalling. Unexpectedly, we discovered that the immune landscape from asthmatic or COPD donors was broadly comparable to controls. Our data provide a much-needed expansion of our understanding of the pulmonary immune compartment in both health and disease.
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Affiliation(s)
- Stefano A P Colombo
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, UK
| | - Sheila L Brown
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, UK
| | - Matthew R Hepworth
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, UK
| | - Jenny Hankinson
- Institute of Translational Genomics, Helmholtz Zentrum München—German Research Center for Environmental Health, Neuherberg, Germany
| | - Felice Granato
- Department of Cardiothoracic Surgery, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Semra J Kitchen
- GSK, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, UK
| | - Tracy Hussell
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, UK
| | - Angela Simpson
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, UK
| | - Peter C Cook
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, UK
- MRC Centre for Medical Mycology, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter, UK
| | - Andrew S MacDonald
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine, and Health, The University of Manchester, Manchester, UK
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González‐Serna D, Shi C, Kerick M, Hankinson J, Ding J, McGovern A, Tutino M, Villanueva‐Martin G, Ortego‐Centeno N, Callejas JL, Martin J, Orozco G. Identification of Mechanisms by Which Genetic Susceptibility Loci Influence Systemic Sclerosis Risk Using Functional Genomics in Primary T Cells and Monocytes. Arthritis Rheumatol 2023; 75:1007-1020. [PMID: 36281738 PMCID: PMC10953390 DOI: 10.1002/art.42396] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 09/08/2022] [Accepted: 10/18/2022] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Systemic sclerosis (SSc) is a complex autoimmune disease with a strong genetic component. However, most of the genes associated with the disease are still unknown because associated variants affect mostly noncoding intergenic elements of the genome. We used functional genomics to translate the genetic findings into a better understanding of the disease. METHODS Promoter capture Hi-C and RNA-sequencing experiments were performed in CD4+ T cells and CD14+ monocytes from 10 SSc patients and 5 healthy controls to link SSc-associated variants with their target genes, followed by differential expression and differential interaction analyses between cell types. RESULTS We linked SSc-associated loci to 39 new potential target genes and confirmed 7 previously known SSc-associated genes. We highlight novel causal genes, such as CXCR5, as the most probable candidate gene for the DDX6 locus. Some previously known SSc-associated genes, such as IRF8, STAT4, and CD247, showed cell type-specific interactions. We also identified 15 potential drug targets already in use in other similar immune-mediated diseases that could be repurposed for SSc treatment. Furthermore, we observed that interactions were directly correlated with the expression of important genes implicated in cell type-specific pathways and found evidence that chromatin conformation is associated with genotype. CONCLUSION Our study revealed potential causal genes for SSc-associated loci, some of them acting in a cell type-specific manner, suggesting novel biologic mechanisms that might mediate SSc pathogenesis.
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Affiliation(s)
- David González‐Serna
- Institute of Parasitology and Biomedicine López‐Neyra, Consejo Superior de Investigaciones Científicas (IPBLN‐CSIC)GranadaSpain
| | - Chenfu Shi
- Division of Musculoskeletal and Dermatological Sciences, Centre for Genetics and Genomics Versus Arthritis, School of Biological Sciences, Faculty of Biology, Medicine and HealthThe University of ManchesterManchesterUK
| | - Martin Kerick
- Institute of Parasitology and Biomedicine López‐Neyra, Consejo Superior de Investigaciones Científicas (IPBLN‐CSIC)GranadaSpain
| | - Jenny Hankinson
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and HealthThe University of ManchesterManchesterUK
| | - James Ding
- Division of Musculoskeletal and Dermatological Sciences, Centre for Genetics and Genomics Versus Arthritis, School of Biological Sciences, Faculty of Biology, Medicine and HealthThe University of ManchesterManchesterUK
| | - Amanda McGovern
- Division of Musculoskeletal and Dermatological Sciences, Centre for Genetics and Genomics Versus Arthritis, School of Biological Sciences, Faculty of Biology, Medicine and HealthThe University of ManchesterManchesterUK
| | - Mauro Tutino
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and HealthThe University of ManchesterManchesterUK
| | - Gonzalo Villanueva‐Martin
- Institute of Parasitology and Biomedicine López‐Neyra, Consejo Superior de Investigaciones Científicas (IPBLN‐CSIC)GranadaSpain
| | - Norberto Ortego‐Centeno
- Department of Internal Medicine, Hospital Universitario San CecilioInstitute for Biosanitary Research of Granada (ibs.GRANADA)GranadaSpain
| | - José Luis Callejas
- Department of Internal Medicine, Hospital Universitario San CecilioInstitute for Biosanitary Research of Granada (ibs.GRANADA)GranadaSpain
| | - Javier Martin
- Institute of Parasitology and Biomedicine López‐Neyra, Consejo Superior de Investigaciones Científicas (IPBLN‐CSIC)GranadaSpain
| | - Gisela Orozco
- Division of Musculoskeletal and Dermatological Sciences, Centre for Genetics and Genomics Versus Arthritis, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, and NIHR Manchester Biomedical Research CentreManchester University NHS Foundation Trust, Manchester Academic Health Science CentreManchesterUK
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Granell R, Curtin JA, Haider S, Kitaba NT, Mathie SA, Gregory LG, Yates LL, Tutino M, Hankinson J, Perretti M, Vonk JM, Arshad HS, Cullinan P, Fontanella S, Roberts GC, Koppelman GH, Simpson A, Turner SW, Murray CS, Lloyd CM, Holloway JW, Custovic A. A meta-analysis of genome-wide association studies of childhood wheezing phenotypes identifies ANXA1 as a susceptibility locus for persistent wheezing. eLife 2023; 12:84315. [PMID: 37227431 DOI: 10.7554/elife.84315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 05/22/2023] [Indexed: 05/26/2023] Open
Abstract
Background Many genes associated with asthma explain only a fraction of its heritability. Most genome-wide association studies (GWASs) used a broad definition of 'doctor-diagnosed asthma', thereby diluting genetic signals by not considering asthma heterogeneity. The objective of our study was to identify genetic associates of childhood wheezing phenotypes. Methods We conducted a novel multivariate GWAS meta-analysis of wheezing phenotypes jointly derived using unbiased analysis of data collected from birth to 18 years in 9,568 individuals from five UK birth-cohorts. Results 44 independent SNPs were associated with early-onset persistent, 25 with preschool remitting, 33 with mid-childhood remitting and 32 with late-onset wheeze. We identified a novel locus on chr9q21.13 (close to annexin 1 (ANXA1), p<6.7×10-9), associated exclusively with early-onset persistent wheeze. We identified rs75260654 as the most likely causative single nucleotide polymorphism (SNP) using Promoter Capture Hi-C loops, and then showed that the risk allele (T) confers a reduction in ANXA1 expression. Finally, in a murine model of house dust mite (HDM)-induced allergic airway disease, we demonstrated that anxa1 protein expression increased and anxa1 mRNA was significantly induced in lung tissue following HDM exposure. Using anxa1-/- deficient mice, we showed that loss of anxa1 results in heightened airway hyperreactivity and Th2 inflammation upon allergen challenge. Conclusions Targeting this pathway in persistent disease may represent an exciting therapeutic prospect. Funding UK Medical Research Council Programme Grant MR/S025340/1 and the Wellcome Trust Strategic Award (108,818/15/Z) provided most of the funding for this study.
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Affiliation(s)
- Raquel Granell
- Department of Population Health Sciences, University of Bristol, Bristol, United Kingdom
| | - John A Curtin
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, United Kingdom
| | - Sadia Haider
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | | | - Sara A Mathie
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Lisa G Gregory
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Laura L Yates
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Mauro Tutino
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, United Kingdom
| | - Jenny Hankinson
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, United Kingdom
| | - Mauro Perretti
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Judith M Vonk
- Department of Epidemiology, University of Groningen, Groningen, Netherlands
| | - Hasan S Arshad
- David Hide Asthma and Allergy Research Centre, Isle of Wight, United Kingdom
| | - Paul Cullinan
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Sara Fontanella
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Graham C Roberts
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Gerard H Koppelman
- Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, Netherlands
| | - Angela Simpson
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, United Kingdom
| | - Steve W Turner
- Child Health, University of Aberdeen, Aberdeeen, United Kingdom
| | - Clare S Murray
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, United Kingdom
| | - Clare M Lloyd
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - John W Holloway
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Adnan Custovic
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
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Gonzalez Serna D, Shi C, Kerick M, Hankinson J, Ding J, McGovern A, Tutino M, Ortego N, Callejas-Rubio JL, Martin Ibanez J, Orozco G. OP0113 FUNCTIONAL GENOMICS IN PRIMARY T CELLS AND MONOCYTES IDENTIFIES MECHANISMS BY WHICH GENETIC SUSCEPTIBILITY LOCI INFLUENCE SYSTEMIC SCLEROSIS RISK. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundSystemic sclerosis (SSc) is a complex autoimmune disease with a strong genetic component. However, the underlying mechanism by which genetics increase disease risk is still unknown. The most recent GWAS studies have identified 27 independent signals associated to SSc [1]. However, the majority of these signals affect regulatory elements that can regulate genes often located hundreds of kilobases away.The challenge in the post-GWAS era is to use functional genomics to translate genetic findings into patients’ benefit, particularly in disease-relevant cell types.ObjectivesIn this study we use chromatin conformation and gene expression analysis in patient derived primary cells and healthy individuals to assess potential mechanisms by which GWAS variants increase disease risk. We identify the potentially affected genes in a cell type specific manner and potential drug targets already in use or with potential for re-purposing.MethodsPromoter capture Hi-C (pCHi-C) and RNA sequencing experiments were performed in a total of 15 CD4+ T cells and CD14+ monocytes samples each isolated from peripheral blood from SSc patients and healthy controls. We linked SSc-associated variants with their target genes and performed differential expression and differential interaction analyses between both cell types. Potential drug targets were identified using a protein-protein interaction model and queried against the OpenTargets database.ResultsWe linked SSc-associated loci to 39 new potential target genes, confirming 7 previously assigned genes. We highlight novel causal genes, such as CXCR5 as the most probable candidate gene for the DDX6 locus (Figure 1). We confirm some previously linked SSc genes such as IRF8, STAT4, or CD247 which interestingly showed cell type specific interactions. We also identified 15 potential drug targets already in use in other similar immune-mediated diseases that could be repurposed for SSc treatment. Furthermore, we observed that interactions are directly related with the expression of important genes implicated in cell type specific pathways.Figure 1.Promoter Capture Hi-C interactions linking the DDX6 GWAS loci with the promoter of CXCR5 in CD4+ T cells and CD14+ monocytes. CD4+ T cells show significantly stronger interactions as well as CXCR5 gene expression.ConclusionOur study reveals potential causal genes for SSc-associated loci, some of them acting in a cell type specific manner, suggesting novel drug targets and biological mechanisms that may mediate SSc pathogenesis.References[1]López-Isac E, Acosta-Herrera M, Kerick M, et al (2019) GWAS for systemic sclerosis identifies multiple risk loci and highlights fibrotic and vasculopathy pathways. Nat Commun 10:. https://doi.org/10.1038/s41467-019-12760-yAcknowledgementsThis work was supported by the Spanish Ministry of Science and Innovation (grants RTI2018101332-B-100 and SAF2015-66761-P), the Cooperative Research Thematic Network (RETICS) programme (RD16/0012/0013) (RIER) from Instituto de Salud Carlos III (ISCIII, Spanish Ministry of Economy, Industry and Competitiveness), the Wellcome Trust (award references 207491/Z/17/Z and 215207/Z/19/Z), Versus Arthritis (award reference 21754), and the NIHR Manchester Biomedical Research Centre. DGS was supported by the Spanish Ministry of Economy and Competitiveness through the FPI programme (SAF2015-66761-P).Disclosure of InterestsNone declared
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Shi C, Ray-Jones H, Ding J, Duffus K, Fu Y, Gaddi VP, Gough O, Hankinson J, Martin P, McGovern A, Yarwood A, Gaffney P, Eyre S, Rattray M, Warren RB, Orozco G. Chromatin Looping Links Target Genes with Genetic Risk Loci for Dermatological Traits. J Invest Dermatol 2021; 141:1975-1984. [PMID: 33607115 PMCID: PMC8315765 DOI: 10.1016/j.jid.2021.01.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 01/12/2021] [Accepted: 01/21/2021] [Indexed: 02/08/2023]
Abstract
Chromatin looping between regulatory elements and gene promoters presents a potential mechanism whereby disease risk variants affect their target genes. In this study, we use H3K27ac HiChIP, a method for assaying the active chromatin interactome in two cell lines: keratinocytes and skin lymphoma-derived CD8+ T cells. We integrate public datasets for a lymphoblastoid cell line and primary CD4+ T cells and identify gene targets at risk loci for skin-related disorders. Interacting genes enrich for pathways of known importance in each trait, such as cytokine response (psoriatic arthritis and psoriasis) and replicative senescence (melanoma). We show examples of how our analysis can inform changes in the current understanding of multiple psoriasis-associated risk loci. For example, the variant rs10794648, which is generally assigned to IFNLR1, was linked to GRHL3, a gene essential in skin repair and development, in our dataset. Our findings, therefore, indicate a renewed importance of skin-related factors in the risk of disease.
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Affiliation(s)
- Chenfu Shi
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom.
| | - Helen Ray-Jones
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom; Dermatology Centre, Salford Royal NHS Foundation Trust, NIHR Manchester Biomedical Research Centre, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - James Ding
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Kate Duffus
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Yao Fu
- Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Vasanthi Priyadarshini Gaddi
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Oliver Gough
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Jenny Hankinson
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, University of Manchester, Manchester, United Kingdom
| | - Paul Martin
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom; Lydia Becker Institute of Immunology and Inflammation, The University of Manchester, Manchester, United Kingdom
| | - Amanda McGovern
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Annie Yarwood
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom; Dermatology Centre, Salford Royal NHS Foundation Trust, NIHR Manchester Biomedical Research Centre, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Patrick Gaffney
- Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Steve Eyre
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom; NIHR Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Magnus Rattray
- Division of Informatics, Imaging and Data Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Richard B Warren
- Dermatology Centre, Salford Royal NHS Foundation Trust, NIHR Manchester Biomedical Research Centre, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Gisela Orozco
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom; NIHR Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
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Ketelaar ME, Portelli MA, Dijk FN, Shrine N, Faiz A, Vermeulen CJ, Xu CJ, Hankinson J, Bhaker S, Henry AP, Billington CK, Shaw DE, Johnson SR, Benest AV, Pang V, Bates DO, Pogson ZEK, Fogarty A, McKeever TM, Singapuri A, Heaney LG, Mansur AH, Chaudhuri R, Thomson NC, Holloway JW, Lockett GA, Howarth PH, Niven R, Simpson A, Tobin MD, Hall IP, Wain LV, Blakey JD, Brightling CE, Obeidat M, Sin DD, Nickle DC, Bossé Y, Vonk JM, van den Berge M, Koppelman GH, Sayers I, Nawijn MC. Phenotypic and functional translation of IL33 genetics in asthma. J Allergy Clin Immunol 2020; 147:144-157. [PMID: 32442646 DOI: 10.1016/j.jaci.2020.04.051] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 03/22/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Asthma is a complex disease with multiple phenotypes that may differ in disease pathobiology and treatment response. IL33 single nucleotide polymorphisms (SNPs) have been reproducibly associated with asthma. IL33 levels are elevated in sputum and bronchial biopsies of patients with asthma. The functional consequences of IL33 asthma SNPs remain unknown. OBJECTIVE This study sought to determine whether IL33 SNPs associate with asthma-related phenotypes and with IL33 expression in lung or bronchial epithelium. This study investigated the effect of increased IL33 expression on human bronchial epithelial cell (HBEC) function. METHODS Association between IL33 SNPs (Chr9: 5,815,786-6,657,983) and asthma phenotypes (Lifelines/DAG [Dutch Asthma GWAS]/GASP [Genetics of Asthma Severity & Phenotypes] cohorts) and between SNPs and expression (lung tissue, bronchial brushes, HBECs) was done using regression modeling. Lentiviral overexpression was used to study IL33 effects on HBECs. RESULTS We found that 161 SNPs spanning the IL33 region associated with 1 or more asthma phenotypes after correction for multiple testing. We report a main independent signal tagged by rs992969 associating with blood eosinophil levels, asthma, and eosinophilic asthma. A second, independent signal tagged by rs4008366 presented modest association with eosinophilic asthma. Neither signal associated with FEV1, FEV1/forced vital capacity, atopy, and age of asthma onset. The 2 IL33 signals are expression quantitative loci in bronchial brushes and cultured HBECs, but not in lung tissue. IL33 overexpression in vitro resulted in reduced viability and reactive oxygen species-capturing of HBECs, without influencing epithelial cell count, metabolic activity, or barrier function. CONCLUSIONS We identify IL33 as an epithelial susceptibility gene for eosinophilia and asthma, provide mechanistic insight, and implicate targeting of the IL33 pathway specifically in eosinophilic asthma.
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Affiliation(s)
- Maria E Ketelaar
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Pediatric Pulmonology and Pediatric Allergology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom.
| | - Michael A Portelli
- Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - F Nicole Dijk
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Pediatric Pulmonology and Pediatric Allergology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Nick Shrine
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom; National Institute for Health Research Leicester Respiratory Biomedical Research Centre, Leicester, United Kingdom
| | - Alen Faiz
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Cornelis J Vermeulen
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Cheng J Xu
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Pediatric Pulmonology and Pediatric Allergology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; CiiM & TWINCORE, Helmholtz-Centre for Infection Research and the Hannover Medical School, Hannover, Germany
| | - Jenny Hankinson
- Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Sangita Bhaker
- Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Amanda P Henry
- Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Charlote K Billington
- Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Dominick E Shaw
- Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Simon R Johnson
- Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Andrew V Benest
- Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, and COMPARE University of Birmingham and University of Nottingham, Nottingham, United Kingdom
| | - Vincent Pang
- Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, and COMPARE University of Birmingham and University of Nottingham, Nottingham, United Kingdom
| | - David O Bates
- Division of Cancer and Stem Cells, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, and COMPARE University of Birmingham and University of Nottingham, Nottingham, United Kingdom
| | - Z E K Pogson
- Department of Respiratory Medicine, Lincoln County Hospital, Lincoln, United Kingdom; Division of Epidemiology and Public Health, University of Nottingham, Nottingham, United Kingdom
| | - Andrew Fogarty
- Division of Epidemiology and Public Health, University of Nottingham, Nottingham, United Kingdom
| | - Tricia M McKeever
- Division of Epidemiology and Public Health, University of Nottingham, Nottingham, United Kingdom
| | - Amisha Singapuri
- Institute for Lung Health, Department of Respiratory Sciences, Glenfield Hospital, University of Leicester, Leicester, United Kingdom
| | - Liam G Heaney
- Centre for Infection and Immunity, Queen's University of Belfast, Belfast, United Kingdom
| | - Adel H Mansur
- Respiratory Medicine, Birmingham Heartlands Hospital and University of Birmingham, Birmingham, United Kingdom
| | - Rekha Chaudhuri
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Neil C Thomson
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - John W Holloway
- Human Development and Health, Faculty of Medicine and National Institute of Health Biomedical Research Centre, University of Southampton, Southampton, United Kingdom; Clinical and Experimental Sciences, Faculty of Medicine and National Institute of Health Biomedical Research Centre, University of Southampton, Southampton, United Kingdom
| | - Gabrielle A Lockett
- Human Development and Health, Faculty of Medicine and National Institute of Health Biomedical Research Centre, University of Southampton, Southampton, United Kingdom; Clinical and Experimental Sciences, Faculty of Medicine and National Institute of Health Biomedical Research Centre, University of Southampton, Southampton, United Kingdom
| | - Peter H Howarth
- Human Development and Health, Faculty of Medicine and National Institute of Health Biomedical Research Centre, University of Southampton, Southampton, United Kingdom; Clinical and Experimental Sciences, Faculty of Medicine and National Institute of Health Biomedical Research Centre, University of Southampton, Southampton, United Kingdom
| | - Robert Niven
- Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Angela Simpson
- Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Martin D Tobin
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom; National Institute for Health Research Leicester Respiratory Biomedical Research Centre, Leicester, United Kingdom
| | - Ian P Hall
- Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Louise V Wain
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom; National Institute for Health Research Leicester Respiratory Biomedical Research Centre, Leicester, United Kingdom
| | - John D Blakey
- Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, Australia
| | - Christopher E Brightling
- National Institute for Health Research Leicester Respiratory Biomedical Research Centre, Leicester, United Kingdom; Institute for Lung Health, Department of Respiratory Sciences, Glenfield Hospital, University of Leicester, Leicester, United Kingdom
| | - Ma'en Obeidat
- The Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Don D Sin
- The Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada; Division of Respiratory Medicine, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - David C Nickle
- Department of Genetics and Pharmacogenomics, Merck Research Laboratories, Boston, Mass
| | - Yohan Bossé
- Department of Molecular Medicine, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Laval University, Quebec City, Quebec, Canada
| | - Judith M Vonk
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Maarten van den Berge
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Gerard H Koppelman
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Pediatric Pulmonology and Pediatric Allergology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ian Sayers
- Division of Respiratory Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Martijn C Nawijn
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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8
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Ray-Jones H, Duffus K, McGovern A, Martin P, Shi C, Hankinson J, Gough O, Yarwood A, Morris AP, Adamson A, Taylor C, Ding J, Gaddi VP, Fu Y, Gaffney P, Orozco G, Warren RB, Eyre S. Mapping DNA interaction landscapes in psoriasis susceptibility loci highlights KLF4 as a target gene in 9q31. BMC Biol 2020; 18:47. [PMID: 32366252 PMCID: PMC7199343 DOI: 10.1186/s12915-020-00779-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 04/14/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Genome-wide association studies (GWAS) have uncovered many genetic risk loci for psoriasis, yet many remain uncharacterised in terms of the causal gene and their biological mechanism in disease. This is largely a result of the findings that over 90% of GWAS variants map outside of protein-coding DNA and instead are enriched in cell type- and stimulation-specific gene regulatory regions. RESULTS Here, we use a disease-focused Capture Hi-C (CHi-C) experiment to link psoriasis-associated variants with their target genes in psoriasis-relevant cell lines (HaCaT keratinocytes and My-La CD8+ T cells). We confirm previously assigned genes, suggest novel candidates and provide evidence for complexity at psoriasis GWAS loci. For one locus, uniquely, we combine further epigenomic evidence to demonstrate how a psoriasis-associated region forms a functional interaction with the distant (> 500 kb) KLF4 gene. This interaction occurs between the gene and active enhancers in HaCaT cells, but not in My-La cells. We go on to investigate this long-distance interaction further with Cas9 fusion protein-mediated chromatin modification (CRISPR activation) coupled with RNA-seq, demonstrating how activation of the psoriasis-associated enhancer upregulates KLF4 and its downstream targets, relevant to skin cells and apoptosis. CONCLUSIONS This approach utilises multiple functional genomic techniques to follow up GWAS-associated variants implicating relevant cell types and causal genes in each locus; these are vital next steps for the translation of genetic findings into clinical benefit.
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Affiliation(s)
- Helen Ray-Jones
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
- Dermatology Centre, Manchester NIHR Biomedical Research Centre, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, UK
| | - Kate Duffus
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Amanda McGovern
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Paul Martin
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
- The Lydia Becker Institute of Immunology and Inflammation, The University of Manchester, Manchester, UK
| | - Chenfu Shi
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Jenny Hankinson
- Dermatology Centre, Manchester NIHR Biomedical Research Centre, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, UK
| | - Oliver Gough
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Annie Yarwood
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
- Dermatology Centre, Manchester NIHR Biomedical Research Centre, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, UK
| | - Andrew P. Morris
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Antony Adamson
- Genome Editing Unit, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Christopher Taylor
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - James Ding
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Vasanthi Priyadarshini Gaddi
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Yao Fu
- Genes and Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Patrick Gaffney
- Genes and Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104 USA
| | - Gisela Orozco
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Richard B. Warren
- Dermatology Centre, Manchester NIHR Biomedical Research Centre, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, UK
| | - Steve Eyre
- Centre for Genetics and Genomics Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
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9
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Portelli MA, Dijk FN, Ketelaar ME, Shrine N, Hankinson J, Bhaker S, Grotenboer NS, Obeidat M, Henry AP, Billington CK, Shaw D, Johnson SR, Pogson ZE, Fogarty A, McKeever TM, Nickle DC, Bossé Y, van den Berge M, Faiz A, Brouwer S, Vonk JM, de Vos P, Brandsma CA, Vermeulen CJ, Singapuri A, Heaney LG, Mansur AH, Chaudhuri R, Thomson NC, Holloway JW, Lockett GA, Howarth PH, Niven R, Simpson A, Blakey JD, Tobin MD, Postma DS, Hall IP, Wain LV, Nawijn MC, Brightling CE, Koppelman GH, Sayers I. Phenotypic and functional translation of IL1RL1 locus polymorphisms in lung tissue and asthmatic airway epithelium. JCI Insight 2020; 5:132446. [PMID: 32324168 PMCID: PMC7205441 DOI: 10.1172/jci.insight.132446] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 03/12/2020] [Indexed: 12/22/2022] Open
Abstract
The IL1RL1 (ST2) gene locus is robustly associated with asthma; however, the contribution of single nucleotide polymorphisms (SNPs) in this locus to specific asthma subtypes and the functional mechanisms underlying these associations remain to be defined. We tested for association between IL1RL1 region SNPs and characteristics of asthma as defined by clinical and immunological measures and addressed functional effects of these genetic variants in lung tissue and airway epithelium. Utilizing 4 independent cohorts (Lifelines, Dutch Asthma GWAS [DAG], Genetics of Asthma Severity and Phenotypes [GASP], and Manchester Asthma and Allergy Study [MAAS]) and resequencing data, we identified 3 key signals associated with asthma features. Investigations in lung tissue and primary bronchial epithelial cells identified context-dependent relationships between the signals and IL1RL1 mRNA and soluble protein expression. This was also observed for asthma-associated IL1RL1 nonsynonymous coding TIR domain SNPs. Bronchial epithelial cell cultures from asthma patients, exposed to exacerbation-relevant stimulations, revealed modulatory effects for all 4 signals on IL1RL1 mRNA and/or protein expression, suggesting SNP-environment interactions. The IL1RL1 TIR signaling domain haplotype affected IL-33–driven NF-κB signaling, while not interfering with TLR signaling. In summary, we identify that IL1RL1 genetic signals potentially contribute to severe and eosinophilic phenotypes in asthma, as well as provide initial mechanistic insight, including genetic regulation of IL1RL1 isoform expression and receptor signaling.
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Affiliation(s)
- Michael A Portelli
- Division of Respiratory Medicine, NIHR, Nottingham Biomedical Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - F Nicole Dijk
- Department of Pediatric Pulmonology and Pediatric Allergology, and
| | - Maria E Ketelaar
- Division of Respiratory Medicine, NIHR, Nottingham Biomedical Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom.,Department of Pediatric Pulmonology and Pediatric Allergology, and.,Department of Pathology and Medical Biology, Beatrix Children's Hospital, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, Netherlands
| | - Nick Shrine
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - Jenny Hankinson
- Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Sangita Bhaker
- Division of Respiratory Medicine, NIHR, Nottingham Biomedical Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Néomi S Grotenboer
- Department of Pediatric Pulmonology and Pediatric Allergology, and.,Department of Pathology and Medical Biology, Beatrix Children's Hospital, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, Netherlands
| | - Ma'en Obeidat
- The University of British Columbia Center for Heart Lung Innovation, St. Paul's Hospital Vancouver, Vancouver, British Columbia, Canada
| | - Amanda P Henry
- Division of Respiratory Medicine, NIHR, Nottingham Biomedical Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Charlotte K Billington
- Division of Respiratory Medicine, NIHR, Nottingham Biomedical Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Dominick Shaw
- Division of Respiratory Medicine, NIHR, Nottingham Biomedical Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Simon R Johnson
- Division of Respiratory Medicine, NIHR, Nottingham Biomedical Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Zara Ek Pogson
- Division of Epidemiology and Public Health, University of Nottingham, Nottingham, United Kingdom
| | - Andrew Fogarty
- Division of Epidemiology and Public Health, University of Nottingham, Nottingham, United Kingdom
| | - Tricia M McKeever
- Division of Epidemiology and Public Health, University of Nottingham, Nottingham, United Kingdom
| | - David C Nickle
- Departments of Genetics and Pharmacogenomics, Merck Research Laboratories, Boston, Massachusetts, USA
| | - Yohan Bossé
- Institut universitaire de cardiologie et de pneumologie de Québec, Department of Molecular Medicine, Laval University, Québec, Canada
| | - Maarten van den Berge
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Department of Pulmonary Diseases, and
| | - Alen Faiz
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Department of Pulmonary Diseases, and
| | - Sharon Brouwer
- Department of Pathology and Medical Biology, Beatrix Children's Hospital, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, Netherlands
| | - Judith M Vonk
- Department of Epidemiology, Beatrix Children's Hospital, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, Netherlands
| | - Paul de Vos
- Department of Pathology and Medical Biology, Beatrix Children's Hospital, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, Netherlands
| | - Corry-Anke Brandsma
- Department of Pathology and Medical Biology, Beatrix Children's Hospital, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, Netherlands
| | - Cornelis J Vermeulen
- Department of Pathology and Medical Biology, Beatrix Children's Hospital, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, Netherlands
| | - Amisha Singapuri
- Respiratory sciences, University of Leicester, Glenfield Hospital, Leicester, United Kingdom
| | - Liam G Heaney
- Centre for Experimental Medicine, Queens University of Belfast, Belfast, United Kingdom
| | - Adel H Mansur
- Department of Respiratory Medicine, Birmingham Heartlands Hospital and University of Birmingham, Birmingham, United Kingdom
| | - Rekha Chaudhuri
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Neil C Thomson
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - John W Holloway
- Department of Human Development and.,Department of Health & Clinical and Experimental Sciences, Faculty of Medicine and NIH Research (NIHR), Southampton Biomedical Research Centre, University of Southampton, Southampton, United Kingdom
| | - Gabrielle A Lockett
- Department of Human Development and.,Department of Health & Clinical and Experimental Sciences, Faculty of Medicine and NIH Research (NIHR), Southampton Biomedical Research Centre, University of Southampton, Southampton, United Kingdom
| | - Peter H Howarth
- Department of Human Development and.,Department of Health & Clinical and Experimental Sciences, Faculty of Medicine and NIH Research (NIHR), Southampton Biomedical Research Centre, University of Southampton, Southampton, United Kingdom
| | - Robert Niven
- Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Angela Simpson
- Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - John D Blakey
- Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, Australia
| | - Martin D Tobin
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom.,NIHR, Leicester Respiratory Biomedical Research Centre, University of Leicester, Leicester, United Kingdom
| | - Dirkje S Postma
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Department of Pulmonary Diseases, and
| | - Ian P Hall
- Division of Respiratory Medicine, NIHR, Nottingham Biomedical Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Louise V Wain
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom.,NIHR, Leicester Respiratory Biomedical Research Centre, University of Leicester, Leicester, United Kingdom
| | - Martijn C Nawijn
- Department of Pathology and Medical Biology, Beatrix Children's Hospital, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, Netherlands
| | - Christopher E Brightling
- Respiratory sciences, University of Leicester, Glenfield Hospital, Leicester, United Kingdom.,NIHR, Leicester Respiratory Biomedical Research Centre, University of Leicester, Leicester, United Kingdom
| | | | - Ian Sayers
- Division of Respiratory Medicine, NIHR, Nottingham Biomedical Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
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10
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Shrine N, Portelli MA, John C, Soler Artigas M, Bennett N, Hall R, Lewis J, Henry AP, Billington CK, Ahmad A, Packer RJ, Shaw D, Pogson ZEK, Fogarty A, McKeever TM, Singapuri A, Heaney LG, Mansur AH, Chaudhuri R, Thomson NC, Holloway JW, Lockett GA, Howarth PH, Djukanovic R, Hankinson J, Niven R, Simpson A, Chung KF, Sterk PJ, Blakey JD, Adcock IM, Hu S, Guo Y, Obeidat M, Sin DD, van den Berge M, Nickle DC, Bossé Y, Tobin MD, Hall IP, Brightling CE, Wain LV, Sayers I. Moderate-to-severe asthma in individuals of European ancestry: a genome-wide association study. Lancet Respir Med 2019; 7:20-34. [PMID: 30552067 PMCID: PMC6314966 DOI: 10.1016/s2213-2600(18)30389-8] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/12/2018] [Accepted: 09/13/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Few genetic studies that focus on moderate-to-severe asthma exist. We aimed to identity novel genetic variants associated with moderate-to-severe asthma, see whether previously identified genetic variants for all types of asthma contribute to moderate-to-severe asthma, and provide novel mechanistic insights using expression analyses in patients with asthma. METHODS In this genome-wide association study, we used a two-stage case-control design. In stage 1, we genotyped patient-level data from two UK cohorts (the Genetics of Asthma Severity and Phenotypes [GASP] initiative and the Unbiased BIOmarkers in PREDiction of respiratory disease outcomes [U-BIOPRED] project) and used data from the UK Biobank to collect patient-level genomic data for cases and controls of European ancestry in a 1:5 ratio. Cases were defined as having moderate-to-severe asthma if they were taking appropriate medication or had been diagnosed by a doctor. Controls were defined as not having asthma, rhinitis, eczema, allergy, emphysema, or chronic bronchitis as diagnosed by a doctor. For stage 2, an independent cohort of cases and controls (1:5) was selected from the UK Biobank only, with no overlap with stage 1 samples. In stage 1 we undertook a genome-wide association study of moderate-to-severe asthma, and in stage 2 we followed up independent variants that reached the significance threshold of p less than 1 × 10-6 in stage 1. We set genome-wide significance at p less than 5 × 10-8. For novel signals, we investigated their effect on all types of asthma (mild, moderate, and severe). For all signals meeting genome-wide significance, we investigated their effect on gene expression in patients with asthma and controls. FINDINGS We included 5135 cases and 25 675 controls for stage 1, and 5414 cases and 21 471 controls for stage 2. We identified 24 genome-wide significant signals of association with moderate-to-severe asthma, including several signals in innate or adaptive immune-response genes. Three novel signals were identified: rs10905284 in GATA3 (coded allele A, odds ratio [OR] 0·90, 95% CI 0·88-0·93; p=1·76 × 10-10), rs11603634 in the MUC5AC region (coded allele G, OR 1·09, 1·06-1·12; p=2·32 × 10-8), and rs560026225 near KIAA1109 (coded allele GATT, OR 1·12, 1·08-1·16; p=3·06 × 10-9). The MUC5AC signal was not associated with asthma when analyses included mild asthma. The rs11603634 G allele was associated with increased expression of MUC5AC mRNA in bronchial epithelial brush samples via proxy SNP rs11602802; (p=2·50 × 10-5) and MUC5AC mRNA was increased in bronchial epithelial samples from patients with severe asthma (in two independent analyses, p=0·039 and p=0·022). INTERPRETATION We found substantial shared genetic architecture between mild and moderate-to-severe asthma. We also report for the first time genetic variants associated with the risk of developing moderate-to-severe asthma that regulate mucin production. Finally, we identify candidate causal genes in these loci and provide increased insight into this difficult to treat population. FUNDING Asthma UK, AirPROM, U-BIOPRED, UK Medical Research Council, and Rosetrees Trust.
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Affiliation(s)
- Nick Shrine
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Michael A Portelli
- Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Catherine John
- Department of Health Sciences, University of Leicester, Leicester, UK
| | | | - Neil Bennett
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Robert Hall
- Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Jon Lewis
- Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Amanda P Henry
- Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Charlotte K Billington
- Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Azaz Ahmad
- Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Richard J Packer
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Dominick Shaw
- Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Zara E K Pogson
- Division of Epidemiology and Public Health, University of Nottingham, Nottingham, UK
| | - Andrew Fogarty
- Division of Epidemiology and Public Health, University of Nottingham, Nottingham, UK
| | - Tricia M McKeever
- Division of Epidemiology and Public Health, University of Nottingham, Nottingham, UK
| | - Amisha Singapuri
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK; Glenfield Hospital, Leicester, UK
| | - Liam G Heaney
- Centre for Infection and Immunity, Queen's University of Belfast, Belfast, UK
| | - Adel H Mansur
- Respiratory Medicine, Birmingham Heartlands Hospital and University of Birmingham, Birmingham, UK
| | - Rekha Chaudhuri
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Neil C Thomson
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - John W Holloway
- Human Development and Health, Clinical and Experimental Sciences, Faculty of Medicine and National Institute of Health Biomedical Research Centre, Southampton, University of Southampton, Southampton, UK
| | - Gabrielle A Lockett
- Human Development and Health, Clinical and Experimental Sciences, Faculty of Medicine and National Institute of Health Biomedical Research Centre, Southampton, University of Southampton, Southampton, UK
| | - Peter H Howarth
- Human Development and Health, Clinical and Experimental Sciences, Faculty of Medicine and National Institute of Health Biomedical Research Centre, Southampton, University of Southampton, Southampton, UK
| | - Ratko Djukanovic
- Human Development and Health, Clinical and Experimental Sciences, Faculty of Medicine and National Institute of Health Biomedical Research Centre, Southampton, University of Southampton, Southampton, UK
| | - Jenny Hankinson
- Division of Infection Immunity and Respiratory Medicine, The University of Manchester, Manchester Academic Health Science Centre, and Manchester University NHS Foundation Trust, Manchester, UK
| | - Robert Niven
- Division of Infection Immunity and Respiratory Medicine, The University of Manchester, Manchester Academic Health Science Centre, and Manchester University NHS Foundation Trust, Manchester, UK
| | - Angela Simpson
- Division of Infection Immunity and Respiratory Medicine, The University of Manchester, Manchester Academic Health Science Centre, and Manchester University NHS Foundation Trust, Manchester, UK
| | - Kian Fan Chung
- The National Heart and Lung Institute, Imperial College, London, UK
| | - Peter J Sterk
- Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands
| | - John D Blakey
- Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Ian M Adcock
- The National Heart and Lung Institute, Imperial College, London, UK
| | - Sile Hu
- Data Science Institute, Imperial College, London, UK
| | - Yike Guo
- Data Science Institute, Imperial College, London, UK
| | - Maen Obeidat
- The University of British Columbia Center for Heart Lung Innovation, St Paul's Hospital Vancouver, Vancouver, BC, Canada
| | - Don D Sin
- The University of British Columbia Center for Heart Lung Innovation, St Paul's Hospital Vancouver, Vancouver, BC, Canada; Division of Respiratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Maarten van den Berge
- University of Groningen, University Medical Center Groningen, Department of Pulmonology, Groningen Research Institute for Asthma and COPD Research Institute, Groningen, Netherlands
| | | | - Yohan Bossé
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Department of Molecular Medicine, Laval University, Quebec City, QC, Canada
| | - Martin D Tobin
- Department of Health Sciences, University of Leicester, Leicester, UK; National Institute for Health Research, Leicester Respiratory Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Ian P Hall
- Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - Christopher E Brightling
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK; National Institute for Health Research, Leicester Respiratory Biomedical Research Centre, University of Leicester, Leicester, UK; Glenfield Hospital, Leicester, UK
| | - Louise V Wain
- Department of Health Sciences, University of Leicester, Leicester, UK; National Institute for Health Research, Leicester Respiratory Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Ian Sayers
- Division of Respiratory Medicine, National Institute for Health Research, Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK.
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11
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Ziyab AH, Hankinson J, Ewart S, Schauberger E, Kopec-Harding K, Zhang H, Custovic A, Arshad H, Simpson A, Karmaus WJ. Epistasis between FLG and IL4R Genes on the Risk of Allergic Sensitization: Results from Two Population-Based Birth Cohort Studies. Sci Rep 2018; 8:3221. [PMID: 29459738 PMCID: PMC5818621 DOI: 10.1038/s41598-018-21459-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 02/05/2018] [Indexed: 11/12/2022] Open
Abstract
Immune-specific genes as well as genes responsible for the formation and integrity of the epidermal barrier have been implicated in the pathogeneses of allergic sensitization. This study sought to determine whether an epistatic effect (gene-gene interaction) between genetic variants within interleukin 4 receptor (IL4R) and filaggrin (FLG) genes predispose to the development of allergic sensitization. Data from two birth cohort studies were analyzed, namely the Isle of Wight (IOW; n = 1,456) and the Manchester Asthma and Allergy Study (MAAS; n = 1,058). In the IOW study, one interaction term (IL4R rs3024676 × FLG variants) showed statistical significance (interaction term: P = 0.003). To illustrate the observed epistasis, stratified analyses were performed, which showed that FLG variants were associated with allergic sensitization only among IL4R rs3024676 homozygotes (OR, 1.97; 95% CI, 1.27–3.05; P = 0.003). In contrast, FLG variants effect was masked among IL4R rs3024676 heterozygotes (OR, 0.53; 95% CI, 0.22–1.32; P = 0.175). Similar results were demonstrated in the MAAS study. Epistasis between immune (IL4R) and skin (FLG) regulatory genes exist in the pathogenesis of allergic sensitization. Hence, genetic susceptibility towards defective epidermal barrier and deviated immune responses could work together in the development of allergic sensitization.
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Affiliation(s)
- Ali H Ziyab
- Department of Community Medicine and Behavioral Sciences, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait.
| | - Jenny Hankinson
- Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Science Centre, The University of Manchester, Manchester University NHS Foundation Trust, Manchester, UK
| | - Susan Ewart
- College of Veterinary Medicine, Michigan State University, East Lansing, Michigan, USA
| | - Eric Schauberger
- Division of Allergy and Immunology, Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Kamilla Kopec-Harding
- Centre for Respiratory Medicine and Allergy, Institute of Inflammation and Repair, University of Manchester, University Hospital of South Manchester NHS Foundation Trust, Manchester, UK
| | - Hongmei Zhang
- Division of Epidemiology, Biostatistics and Environmental Health, School of Public Health, University of Memphis, Memphis, TN, USA
| | - Adnan Custovic
- Department of Paediatrics, Imperial College London, London, UK
| | - Hasan Arshad
- David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Isle of Wight, UK.,Clinical and Experimental Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Angela Simpson
- Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Science Centre, The University of Manchester, Manchester University NHS Foundation Trust, Manchester, UK
| | - Wilfried J Karmaus
- Division of Epidemiology, Biostatistics and Environmental Health, School of Public Health, University of Memphis, Memphis, TN, USA
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Grabiec AM, Denny N, Doherty JA, Happonen KE, Hankinson J, Connolly E, Fife ME, Fujimori T, Fujino N, Goenka A, Holden S, Tavernier G, Shah R, Cook PC, MacDonald AS, Niven RM, Dahlbäck B, Fowler SJ, Simpson A, Hussell T. Diminished airway macrophage expression of the Axl receptor tyrosine kinase is associated with defective efferocytosis in asthma. J Allergy Clin Immunol 2017; 140:1144-1146.e4. [PMID: 28412392 DOI: 10.1016/j.jaci.2017.03.024] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 02/14/2017] [Accepted: 03/15/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Aleksander M Grabiec
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom; Faculty of Biochemistry, Biophysics and Biotechnology, Department of Microbiology, Jagiellonian University, Kraków, Poland
| | - Nicholas Denny
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom
| | - John A Doherty
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom
| | - Kaisa E Happonen
- Department of Translational Medicine, Division of Clinical Chemistry, Lund University, Malmö, Sweden
| | - Jenny Hankinson
- Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
| | - Emma Connolly
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom
| | - Mark E Fife
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom
| | - Toshifumi Fujimori
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom
| | - Naoya Fujino
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom
| | - Anu Goenka
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom
| | - Susan Holden
- Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
| | - Gaël Tavernier
- Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
| | - Rajesh Shah
- Department of Thoracic Surgery, University Hospital of South Manchester, Manchester, United Kingdom
| | - Peter C Cook
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom
| | - Andrew S MacDonald
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom
| | - Robert M Niven
- Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
| | - Björn Dahlbäck
- Department of Translational Medicine, Division of Clinical Chemistry, Lund University, Malmö, Sweden
| | - Stephen J Fowler
- Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
| | - Angela Simpson
- Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
| | - Tracy Hussell
- Manchester Collaborative Centre for Inflammation Research, the University of Manchester, Manchester, United Kingdom.
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Shrine N, Soler-Artigas M, Portelli M, Bennett N, Ntalla I, Henry A, Billington C, Shaw D, Pogson Z, Fogerty A, McKeever T, Jonker L, Singapuri A, Heaney L, Mansur A, Chaudhuri R, Thomson N, Holloway J, Lockett G, Howarth P, Djukanovic R, Hankinson J, Niven R, Simpson A, Chung K, Sterk P, Blakey J, Adcock I, Tobin M, Hall I, Brightling C, Wain L, Sayers I. A Genome Wide Association Study of Moderate-Severe Asthma in subjects from the United Kingdom. Genes Environ 2017. [DOI: 10.1183/1393003.congress-2017.pa1815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Brough HA, Simpson A, Makinson K, Hankinson J, Brown S, Douiri A, Belgrave DCM, Penagos M, Stephens AC, McLean WHI, Turcanu V, Nicolaou N, Custovic A, Lack G. Peanut allergy: effect of environmental peanut exposure in children with filaggrin loss-of-function mutations. J Allergy Clin Immunol 2015; 134:867-875.e1. [PMID: 25282568 PMCID: PMC4188983 DOI: 10.1016/j.jaci.2014.08.011] [Citation(s) in RCA: 196] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 08/20/2014] [Accepted: 08/20/2014] [Indexed: 01/08/2023]
Abstract
BACKGROUND Filaggrin (FLG) loss-of-function mutations lead to an impaired skin barrier associated with peanut allergy. Household peanut consumption is associated with peanut allergy, and peanut allergen in household dust correlates with household peanut consumption. OBJECTIVE We sought to determine whether environmental peanut exposure increases the odds of peanut allergy and whether FLG mutations modulate these odds. METHODS Exposure to peanut antigen in dust within the first year of life was measured in a population-based birth cohort. Peanut sensitization and peanut allergy (defined by using oral food challenges or component-resolved diagnostics [CRD]) were assessed at 8 and 11 years. Genotyping was performed for 6 FLG mutations. RESULTS After adjustment for infantile atopic dermatitis and preceding egg skin prick test (SPT) sensitization, we found a strong and significant interaction between natural log (ln [loge]) peanut dust levels and FLG mutations on peanut sensitization and peanut allergy. Among children with FLG mutations, for each ln unit increase in the house dust peanut protein level, there was a more than 6-fold increased odds of peanut SPT sensitization, CRD sensitization, or both in children at ages 8 years, 11 years, or both and a greater than 3-fold increased odds of peanut allergy compared with odds seen in children with wild-type FLG. There was no significant effect of exposure in children without FLG mutations. In children carrying an FLG mutation, the threshold level for peanut SPT sensitization was 0.92 μg of peanut protein per gram (95% CI, 0.70-1.22 μg/g), that for CRD sensitization was 1.03 μg/g (95% CI, 0.90-1.82 μg/g), and that for peanut allergy was 1.17 μg/g (95% CI, 0.01-163.83 μg/g). CONCLUSION Early-life environmental peanut exposure is associated with an increased risk of peanut sensitization and allergy in children who carry an FLG mutation. These data support the hypothesis that peanut allergy develops through transcutaneous sensitization in children with an impaired skin barrier.
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Affiliation(s)
- Helen A Brough
- Department of Pediatric Allergy, Division of Asthma, Allergy and Lung Biology, King's College London and Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom
| | - Angela Simpson
- Centre for Respiratory Medicine and Allergy, Institute of Inflammation and Repair, Manchester Academic Health Sciences Centre, University of Manchester and University Hospital of South Manchester NHS Foundation Trust, Manchester, United Kingdom
| | - Kerry Makinson
- Department of Pediatric Allergy, Division of Asthma, Allergy and Lung Biology, King's College London and Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom
| | - Jenny Hankinson
- Centre for Respiratory Medicine and Allergy, Institute of Inflammation and Repair, Manchester Academic Health Sciences Centre, University of Manchester and University Hospital of South Manchester NHS Foundation Trust, Manchester, United Kingdom
| | - Sara Brown
- Centre for Health Informatics, Institute of Population Health, University of Manchester, Manchester, United Kingdom
| | - Abdel Douiri
- Department of Public Health Science, School of Medicine, King's College London, London, United Kingdom
| | - Danielle C M Belgrave
- Centre for Respiratory Medicine and Allergy, Institute of Inflammation and Repair, Manchester Academic Health Sciences Centre, University of Manchester and University Hospital of South Manchester NHS Foundation Trust, Manchester, United Kingdom; Centre for Dermatology and Genetic Medicine, College of Life Sciences and College of Medicine, Dentistry and Nursing, University of Dundee, Dundee, United Kingdom
| | - Martin Penagos
- Department of Pediatric Allergy, Division of Asthma, Allergy and Lung Biology, King's College London and Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom
| | - Alick C Stephens
- Department of Pediatric Allergy, Division of Asthma, Allergy and Lung Biology, King's College London and Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom
| | - W H Irwin McLean
- Centre for Health Informatics, Institute of Population Health, University of Manchester, Manchester, United Kingdom
| | - Victor Turcanu
- Department of Pediatric Allergy, Division of Asthma, Allergy and Lung Biology, King's College London and Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom
| | - Nicolaos Nicolaou
- Centre for Respiratory Medicine and Allergy, Institute of Inflammation and Repair, Manchester Academic Health Sciences Centre, University of Manchester and University Hospital of South Manchester NHS Foundation Trust, Manchester, United Kingdom
| | - Adnan Custovic
- Centre for Respiratory Medicine and Allergy, Institute of Inflammation and Repair, Manchester Academic Health Sciences Centre, University of Manchester and University Hospital of South Manchester NHS Foundation Trust, Manchester, United Kingdom
| | - Gideon Lack
- Department of Pediatric Allergy, Division of Asthma, Allergy and Lung Biology, King's College London and Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom.
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Smith N, Hankinson J, Simpson A, Denning D, Bowyer P. Reduced expression of TLR3, TLR10 and TREM1 by human macrophages in Chronic cavitary pulmonary aspergillosis, and novel associations of VEGFA, DENND1B and PLAT. Clin Microbiol Infect 2014; 20:O960-8. [DOI: 10.1111/1469-0691.12643] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 03/31/2014] [Accepted: 04/02/2014] [Indexed: 12/21/2022]
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Kljaic-Bukvic B, Blekic M, Aberle N, Curtin JA, Hankinson J, Semic-Jusufagic A, Belgrave D, Simpson A, Custovic A. Genetic variants in endotoxin signalling pathway, domestic endotoxin exposure and asthma exacerbations. Pediatr Allergy Immunol 2014; 25:552-7. [PMID: 24902762 DOI: 10.1111/pai.12258] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/02/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND We investigated the interaction between genetic variants in endotoxin signalling pathway and domestic endotoxin exposure in relation to asthma presence, and amongst children with asthma, we explored the association of these genetic variants and endotoxin exposure with hospital admissions due to asthma exacerbations. METHODS In a case-control study, we analysed data from 824 children (417 asthmatics, 407 controls; age 5-18 yr). Amongst asthmatics, we extracted data on hospitalization for asthma exacerbation from medical records. Endotoxin exposure was measured in dust samples collected from homes. We included 26 single-nucleotide polymorphisms (SNPs) in the final analysis (5 CD14, 7LY96 and 14 TLR4). RESULTS Two variants remained significantly associated with hospital admissions with asthma exacerbations after correction for multiple testing: for CD14 SNP rs5744455, carriers of T allele had decreased risk of repeated hospital admissions compared with homozygotes for C allele [OR (95% CI), 0.42 (0.25-0.88), p = 0.01, False Discovery Rate (FDR) p = 0.02]; for LY96 SNP rs17226566, C-allele carriers were at a lower risk of hospital admissions compared with T-allele homozygotes [0.59 (0.38-0.90), p = 0.01, FDR p = 0.04]. We observed two interactions between SNPs in CD14 and LY96 with environmental endotoxin exposure in relation to hospital admissions due to asthma exacerbation which remained significant after correction for multiple testing (CD14 SNPs rs2915863 and LY96 SNP rs17226566). CONCLUSION Amongst children with asthma, genetic variants in CD14 and LY96 may increase the risk of hospital admissions with acute exacerbations. Polymorphisms in endotoxin pathway interact with domestic endotoxin exposure in further modification of the risk of hospitalization.
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Affiliation(s)
- Blazenka Kljaic-Bukvic
- General Hospital "Dr Josip Bencevic" Slavonski Brod, University of Osijek, Osijek, Croatia
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Smith N, Hankinson J, Simpson A, Bowyer P, Denning D. A prominent role for the IL1 pathway and IL15 in susceptibility to chronic cavitary pulmonary aspergillosis. Clin Microbiol Infect 2014; 20:O480-8. [DOI: 10.1111/1469-0691.12473] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/29/2013] [Accepted: 11/21/2013] [Indexed: 11/28/2022]
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Hopkinson N, Wallis C, Higgins B, Gaduzo S, Sherrington R, Keilty S, Stern M, Britton J, Bush A, Moxham J, Sylvester K, Griffiths V, Sutherland T, Crossingham I, Raju R, Spencer C, Safavi S, Deegan P, Seymour J, Hickman K, Hughes J, Wieboldt J, Shaheen F, Peedell C, Mackenzie N, Nicholl D, Jolley C, Crooks G, Crooks G, Dow C, Deveson P, Bintcliffe O, Gray B, Kumar S, Haney S, Docherty M, Thomas A, Chua F, Dwarakanath A, Summers G, Prowse K, Lytton S, Ong YE, Graves J, Banerjee T, English P, Leonard A, Brunet M, Chaudhry N, Ketchell RI, Cummings N, Lebus J, Sharp C, Meadows C, Harle A, Stewart T, Parry D, Templeton-Wright S, Moore-Gillon J, Stratford- Martin J, Saini S, Matusiewicz S, Merritt S, Dowson L, Satkunam K, Hodgson L, Suh ES, Durrington H, Browne E, Walters N, Steier J, Barry S, Griffiths M, Hart N, Nikolic M, Berry M, Thomas A, Miller J, McNicholl D, Marsden P, Warwick G, Barr L, Adeboyeku D, Mohd Noh MS, Griffiths P, Davies L, Quint J, Lyall R, Shribman J, Collins A, Goldman J, Bloch S, Gill A, Man W, Christopher A, Yasso R, Rajhan A, Shrikrishna D, Moore C, Absalom G, Booton R, Fowler RW, Mackinlay C, Sapey E, Lock S, Walker P, Jha A, Satia I, Bradley B, Mustfa N, Haqqee R, Thomas M, Patel A, Redington A, Pillai A, Keaney N, Fowler S, Lowe L, Brennan A, Morrison D, Murray C, Hankinson J, Dutta P, Maddocks M, Pengo M, Curtis K, Rafferty G, Hutchinson J, Whitfield R, Turner S, Breen R, Naveed SUN, Goode C, Esterbrook G, Ahmed L, Walker W, Ford D, Connett G, Davidson P, Elston W, Stanton A, Morgan D, Myerson J, Maxwell D, Harrris A, Parmar S, Houghton C, Winter R, Puthucheary Z, Thomson F, Sturney S, Harvey J, Haslam PL, Patel I, Jennings D, Range S, Mallia-Milanes B, Collett A, Tate P, Russell R, Feary J, O'Driscoll R, Eaden J, Round J, Sharkey E, Montgomery M, Vaughan S, Scheele K, Lithgow A, Partridge S, Chavasse R, Restrick L, Agrawal S, Abdallah S, Lacy-Colson A, Adams N, Mitchell S, Haja Mydin H, Ward A, Denniston S, Steel M, Ghosh D, Connellan S, Rigge L, Williams R, Grove A, Anwar S, Dobson L, Hosker H, Stableforth D, Greening N, Howell T, Casswell G, Davies S, Tunnicliffe G, Mitchelmore P, Phitidis E, Robinson L, Prowse K, Bafadhel M, Robinson G, Boland A, Lipman M, Bourke S, Kaul S, Cowie C, Forrest I, Starren E, Burke H, Furness J, Bhowmik A, Everett C, Seaton D, Holmes S, Doe S, Parker S, Graham A, Paterson I, Maqsood U, Ohri C, Iles P, Kemp S, Iftikhar A, Carlin C, Fletcher T, Emerson P, Beasley V, Ramsay M, Buttery R, Mungall S, Crooks S, Ridyard J, Ross D, Guadagno A, Holden E, Coutts I, Cullen K, O'Connor S, Barker J, Sloper K, Watson J, Smith P, Anderson P, Brown L, Nyman C, Milburn H, Clive A, Serlin M, Bolton C, Fuld J, Powell H, Dayer M, Woolhouse I, Georgiadi A, Leonard H, Dodd J, Campbell I, Ruiz G, Zurek A, Paton JY, Malin A, Wood F, Hynes G, Connell D, Spencer D, Brown S, Smith D, Cooper D, O'Kane C, Hicks A, Creagh-Brown B, Lordan J, Nickol A, Primhak R, Fleming L, Powrie D, Brown J, Zoumot Z, Elkin S, Szram J, Scaffardi A, Marshall R, Macdonald I, Lightbody D, Farmer R, Wheatley I, Radnan P, Lane I, Booth A, Tilbrook S, Capstick T, Hewitt L, McHugh M, Nelson C, Wilson P, Padmanaban V, White J, Davison J, O'Callaghan U, Hodson M, Edwards J, Campbell C, Ward S, Wooler E, Ringrose E, Bridges D, Long A, Parkes M, Clarke S, Allen B, Connelly C, Forster G, Hoadley J, Martin K, Barnham K, Khan K, Munday M, Edwards C, O'Hara D, Turner S, Pieri-Davies S, Ford K, Daniels T, Wright J, Towns R, Fern K, Butcher J, Burgin K, Winter B, Freeman D, Olive S, Gray L, Pye K, Roots D, Cox N, Davies CA, Wicker J, Hilton K, Lloyd J, MacBean V, Wood M, Kowal J, Downs J, Ryan H, Guyatt F, Nicoll D, Lyons E, Narasimhan D, Rodman A, Walmsley S, Newey A, Buxton M, Dewar M, Cooper A, Reilly J, Lloyd J, Macmillan AB, Roots D, Olley A, Voase N, Martin S, McCarvill I, Christensen A, Agate R, Heslop K, Timlett A, Hailes K, Davey C, Pawulska B, Lane A, Ioakim S, Hough A, Treharne J, Jones H, Winter-Burke A, Miller L, Connolly B, Bingham L, Fraser U, Bott J, Johnston C, Graham A, Curry D, Sumner H, Costello CA, Bartoszewicz C, Badman R, Williamson K, Taylor A, Purcell H, Barnett E, Molloy A, Crawfurd L, Collins N, Monaghan V, Mir M, Lord V, Stocks J, Edwards A, Greenhalgh T, Lenney W, McKee M, McAuley D, Majeed A, Cookson J, Baker E, Janes S, Wedzicha W, Lomas Dean D, Harrison B, Davison T, Calverley P, Wilson R, Stockley R, Ayres J, Gibson J, Simpson J, Burge S, Warner J, Lenney W, Thomson N, Davies P, Woodcock A, Woodhead M, Spiro S, Ormerod L, Bothamley G, Partridge M, Shields M, Montgomery H, Simonds A, Barnes P, Durham S, Malone S, Arabnia G, Olivier S, Gardiner K, Edwards S. Children must be protected from the tobacco industry's marketing tactics. BMJ 2013; 347:f7358. [PMID: 24324220 DOI: 10.1136/bmj.f7358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Nicholas Hopkinson
- British Thoracic Society Chronic Obstructive Pulmonary Disease Specialist Advisory Group, National Heart and Lung Institute, Imperial College, London SW3 6NP, UK
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Wu J, Hankinson J, Kopec-Harding K, Custovic A, Simpson A. Interaction between glutathione S-transferase variants, maternal smoking and childhood wheezing changes with age. Pediatr Allergy Immunol 2013; 24:501-8. [PMID: 23879774 DOI: 10.1111/pai.12086] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/20/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Maternal smoking increases the risk of respiratory symptoms in children. Glutathione S-transferases (GSTs) detoxify xenobiotics from tobacco smoke, and functional polymorphism in GST gene(s) could predispose children to the detrimental effects of maternal smoking. Our objective was to investigate interactions between GST variants and maternal smoking in relation to the development of wheezing during childhood and whether any such interaction changes with time. METHODS In a population-based birth cohort, we assessed maternal smoking and current wheeze at five time points during the first 11 yr of life. DNA was genotyped for GSTP1, GSTM1 and GSTT1 (n = 807). Longitudinal analyses were performed using generalized estimating equations. RESULTS During early childhood, children whose mothers smoked were more likely to wheeze, with the strongest association observed at age 3 yr (p = 0.006). In a longitudinal model, children with GSTP1 AA and AG genotypes had significantly higher risk of wheeze compared with GG homozygotes. We observed a significant interaction between GSTP1 and maternal smoking where the risk of infantile wheezing was significantly increased in AA homozygotes, but only if their mothers smoked (OR 2.59, [1.08-6.21], p(int) = 0.03). Furthermore, amongst AA carriers, there was a significant interaction between child's age and maternal smoking, with the effect of maternal smoking on the risk of wheeze significantly diminishing with age (p(int) = 0.05); no such findings were observed for GSTM1 and GSTT1. CONCLUSIONS Children with AA genotype for GSTP1 are at increased risk of early-life wheezing if their mothers smoke, but the effect of maternal smoking on wheezing diminishes with time.
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Affiliation(s)
- Jiakai Wu
- Manchester Academic Health Science Centre, University Hospital of South Manchester NHS Foundation Trust, The University of Manchester, Manchester, UK.
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Blekic M, Kljaic Bukvic B, Aberle N, Marinho S, Hankinson J, Custovic A, Simpson A. 17q12-21 and asthma: interactions with early-life environmental exposures. Ann Allergy Asthma Immunol 2013; 110:347-353.e2. [PMID: 23622005 DOI: 10.1016/j.anai.2013.01.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 01/28/2013] [Accepted: 01/28/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND 17q12-21 polymorphisms are associated with asthma presence and severity across different populations. OBJECTIVE To extensively investigate the genes in this region among Croatian schoolchildren in a case-control study, taking account of early-life environmental exposures. METHODS We included 423 children with asthma and 414 controls aged 5 to 18 years. Fifty-one haplotype tagging single-nucleotide polymorphisms (SNPs) were genotyped (GSDMA, GSDMB, ORMDL3, IKZF3, ZPBP2, and TOP2). Data on exposure to smoking and furry pet ownership were collected using a validated questionnaire. Information on severe asthma exacerbations with hospital admission were retrieved from hospital notes. All patients underwent spirometry. RESULTS We found 2 SNPs (1 novel rs9635726 in IKZF3) to be associated with asthma. Among children with asthma, 4 SNPs (in ZPBP2, GSDMB, and GSDMA) were associated with hospital admissions and 8 SNPs with lung function. One SNP (rs9635726) remained significantly associated with a predicted forced expiratory volume in 1 second after false discovery rate correction. Nine markers across 5 genes showed interaction with early-life environmental tobacco smoke (ETS) exposure in relation to asthma and 2 with furry pet ownership. Among children with asthma, we observed significant interactions between early-life ETS exposure and 3 SNPs for lung function and among early-life ETS exposure, 3 SNPs (in ORMDL3 and GSDMA), and hospital admission with asthma exacerbation. Three SNPs (in ORMDL3) interacted with current furry pet ownership in relation to hospital admissions for asthma exacerbation. CONCLUSION Our results indicate that several genes in the 17q12-21 region may be associated with asthma. This study confirms that environmental exposures may need to be included into the genetic association studies.
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Affiliation(s)
- Mario Blekic
- General Hospital Dr Josip Bencevic Slavonski Brod, University of Osijek, Osijek, Croatia
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Bukvic BK, Blekic M, Simpson A, Marinho S, Curtin JA, Hankinson J, Aberle N, Custovic A. Asthma severity, polymorphisms in 20p13 and their interaction with tobacco smoke exposure. Pediatr Allergy Immunol 2013; 24:10-8. [PMID: 23331525 DOI: 10.1111/pai.12019] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/01/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND We investigated the association between genetic variation in chromosomal region 20p13-p12 (ADAM33 and flanking genes ATRN, GFRA4, SIGLEC1 and HSPA12B) and asthma. Amongst asthmatics, we then investigated the association between genetic variants and asthma severity. We evaluated the effect of environmental tobacco smoke (ETS) exposure in the context of genetic variants. METHODS In a case-control study, we recruited 423 asthmatic children and 414 non-asthmatic controls (age 5-18 yr). Amongst asthmatics, we measured lung function and extracted data on hospitalisation for asthma exacerbation from medical records. Early-life ETS exposure was assessed by questionnaire. We included 85 single-nucleotide polymorphisms (SNPs) in the analysis. RESULTS Seventeen SNPs were significantly associated with asthma; one (rs41534847 in ADAM33) remained significant after correction for multiple testing. Thirty-six SNPs were significantly associated with lung function, of which 15 (six ARTN, three ADAM33, five SIGLEC1 and one HSPA12B) remained significant after correction. We observed a significant interaction between 23 SNPs and early-life ETS exposure in relation to lung function measures. For example, for rs512625 in ADAM33, there was significant interaction with ETS exposure in relation to hospitalisations (p(int) = 0.02) and lung function (p(int) = 0.03); G-allele homozygotes had a 9.15-fold [95% CI 2.28-36.89] higher risk of being hospitalized and had significantly poorer lung function if exposed to ETS, with no effect of ETS exposure amongst A-allele carriers. CONCLUSION We demonstrated several novel significant interactions between polymorphisms in 20p13-p12 and early-life ETS exposure with asthma presence and, amongst asthmatics, a significant association with the severity of their disease.
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Affiliation(s)
- Blazenka Kljaic Bukvic
- General Hospital Dr Josip Bencevic Slavonski Brod, University of Osijek, Osijek, Croatia
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Simpson A, Custovic A, Tepper R, Graves P, Stern DA, Jones M, Hankinson J, Curtin JA, Wu J, Blekic M, Bukvic BK, Aberle N, Marinho S, Belgrave D, Morgan WJ, Martinez FD. Genetic variation in vascular endothelial growth factor-a and lung function. Am J Respir Crit Care Med 2012; 185:1197-204. [PMID: 22461367 DOI: 10.1164/rccm.201112-2191oc] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
RATIONALE Given the role of vascular endothelial growth factor (VEGF) in lung development, we hypothesized that polymorphisms in VEGF-A may be associated with lung function. OBJECTIVES The current study was designed to assess the role of genetic variants in VEGF-A as determinants of airway function from infancy through early adulthood. METHODS Association between five single-nucleotide polymorphisms (SNPs) in VEGF-A and lung function were assessed longitudinally in two unselected birth cohorts and cross-sectionally among infants. Replication with two SNPs was conducted in adults and children with asthma. We investigated the functionality of the SNP most consistently associated with lung function (rs3025028) using Western blotting to measure the ratio of plasma VEGF-A(165b)/panVEGF-A(165) among homozygotes. MEASUREMENTS AND MAIN RESULTS In two populations in infancy, C-allele homozygotes of rs3025028 had significantly higher VmaxFRC, forced expiratory flow(50), and forced expiratory flow(25-75) compared with other genotype groups. Among preschool children (age 3 yr), C allele of rs3025028 was associated with significantly higher specific airway conductance, with similar findings observed for lung function in school-age children. For FEV(1)/FVC ratio similar findings were observed among adolescents and young adults (birth cohort), and then replicated in adults and schoolchildren with asthma (cross-sectional studies). For rs3025038, plasma VEGF-A(165b)/panVEGF-A(165) was significantly higher among CC versus GG homozygotes (P ≤ 0.02) at birth, in school-age children, and in adults. CONCLUSIONS We report significant associations between VEGF-A SNP rs3025028 and parameters of airway function measured throughout childhood, with the effect persisting into adulthood. We propose that the mechanism may be mediated through the ratios of active and inhibitory isoforms of VEGF-A(165), which may be determined by alternative splicing.
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Affiliation(s)
- Angela Simpson
- University of Manchester, Wythenshawe Hospital, Manchester, UK.
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Miller MR, Hankinson J, Brusasco V, Burgos F, Casaburi R, Coates A, Enright P, van der Grinten C, Gustafsson P, Jensen R, MacIntyre N, McKay RT, Pedersen OF, Pellegrino R, Viegi G, Wanger J. Standardisation of lung function testing: the authors' replies to readers' comments. Eur Respir J 2010; 36:1496-8. [DOI: 10.1183/09031936.00130010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Sprinkle M, Ruan M, Hu Y, Hankinson J, Rubio-Roy M, Zhang B, Wu X, Berger C, de Heer WA. Scalable templated growth of graphene nanoribbons on SiC. Nat Nanotechnol 2010; 5:727-31. [PMID: 20890273 DOI: 10.1038/nnano.2010.192] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Accepted: 08/31/2010] [Indexed: 05/18/2023]
Abstract
In spite of its excellent electronic properties, the use of graphene in field-effect transistors is not practical at room temperature without modification of its intrinsically semimetallic nature to introduce a bandgap. Quantum confinement effects can create a bandgap in graphene nanoribbons, but existing nanoribbon fabrication methods are slow and often produce disordered edges that compromise electronic properties. Here, we demonstrate the self-organized growth of graphene nanoribbons on a templated silicon carbide substrate prepared using scalable photolithography and microelectronics processing. Direct nanoribbon growth avoids the need for damaging post-processing. Raman spectroscopy, high-resolution transmission electron microscopy and electrostatic force microscopy confirm that nanoribbons as narrow as 40 nm can be grown at specified positions on the substrate. Our prototype graphene devices exhibit quantum confinement at low temperatures (4 K), and an on-off ratio of 10 and carrier mobilities up to 2,700 cm(2) V(-1) s(-1) at room temperature. We demonstrate the scalability of this approach by fabricating 10,000 top-gated graphene transistors on a 0.24-cm(2) SiC chip, which is the largest density of graphene devices reported to date.
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Affiliation(s)
- M Sprinkle
- Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA
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25
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Simpson A, Semic-Jusufagic A, Hankinson J, Custovic A. A Polymorphism In GSDMB Is Associated With Severe Exacerbations Of Asthma In Childhood. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Bisgaard H, Simpson A, Palmer CNA, Bønnelykke K, McLean I, Mukhopadhyay S, Pipper CB, Halkjaer LB, Lipworth B, Hankinson J, Woodcock A, Custovic A. Gene-environment interaction in the onset of eczema in infancy: filaggrin loss-of-function mutations enhanced by neonatal cat exposure. PLoS Med 2008; 5:e131. [PMID: 18578563 PMCID: PMC2504043 DOI: 10.1371/journal.pmed.0050131] [Citation(s) in RCA: 203] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2007] [Accepted: 05/06/2008] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Loss-of-function variants in the gene encoding filaggrin (FLG) are major determinants of eczema. We hypothesized that weakening of the physical barrier in FLG-deficient individuals may potentiate the effect of environmental exposures. Therefore, we investigated whether there is an interaction between FLG loss-of-function mutations with environmental exposures (pets and dust mites) in relation to the development of eczema. METHODS AND FINDINGS We used data obtained in early life in a high-risk birth cohort in Denmark and replicated the findings in an unselected birth cohort in the United Kingdom. Primary outcome was age of onset of eczema; environmental exposures included pet ownership and mite and pet allergen levels. In Copenhagen (n = 379), FLG mutation increased the risk of eczema during the first year of life (hazard ratio [HR] 2.26, 95% confidence interval [CI] 1.27-4.00, p = 0.005), with a further increase in risk related to cat exposure at birth amongst children with FLG mutation (HR 11.11, 95% CI 3.79-32.60, p < 0.0001); dog exposure was moderately protective (HR 0.49, 95% CI 0.24-1.01, p = 0.05), but not related to FLG genotype. In Manchester (n = 503) an independent and significant association of the development of eczema by age 12 mo with FLG genotype was confirmed (HR 1.95, 95% CI 1.13-3.36, p = 0.02). In addition, the risk increased because of the interaction of cat ownership at birth and FLG genotype (HR 3.82, 95% CI 1.35-10.81, p = 0.01), with no significant effect of the interaction with dog ownership (HR 0.59, 95% CI 0.16-2.20, p = 0.43). Mite-allergen had no effects in either cohort. The observed effects were independent of sensitisation. CONCLUSIONS We have demonstrated a significant interaction between FLG loss-of-function main mutations (501x and 2282del4) and cat ownership at birth on the development of early-life eczema in two independent birth cohorts. Our data suggest that cat but not dog ownership substantially increases the risk of eczema within the first year of life in children with FLG loss-of-function variants, but not amongst those without. FLG-deficient individuals may need to avoid cats but not dogs in early life.
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Affiliation(s)
- Hans Bisgaard
- Copenhagen Prospective Studies on Asthma in Childhood, Danish Paediatric Asthma Centre, Copenhagen, University Hospital Gentofte, Copenhagen, Denmark.
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27
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Pellegrino R, Brusasco V, Viegi G, Crapo RO, Burgos F, Casaburi R, Coates A, van der Grinten CPM, Gustafsson P, Hankinson J, Jensen R, Johnson DC, Macintyre N, McKay R, Miller MR, Navajas D, Pedersen OF, Wanger J. Definition of COPD: based on evidence or opinion? Eur Respir J 2008; 31:681-2. [PMID: 18310402 DOI: 10.1183/09031936.00154307] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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28
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MacIntyre N, Crapo R, Viegi G, Johnson D, Van Der Grinten C, Brusasco V, Burgos F, Casaburi R, Coates A, Enright P, Gustafsson P, Hankinson J, Jensen R, McKay R, Miller M, Navajas D, Pedersen O, Pellegrino R, Wanger J. Standardisation de la détermination de la diffusion du monoxyde de carbone par la méthode en apnée. Rev Mal Respir 2007. [DOI: 10.1016/s0761-8425(07)91119-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Miller M, Crapo R, Hankinson J, Brusasco V, Burgos F, Casaburi R, Coates A, Enright P, Van Der Grinten C, Gustafsson P, Jensen R, Johnson D, MacIntyre N, McKay R, Navajas D, Pedersen O, Pellegrino R, Viegi G, Wanger J. Considérations générales sur les explorations fonctionnelles respiratoires. Rev Mal Respir 2007. [DOI: 10.1016/s0761-8425(07)91116-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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30
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Miller M, Hankinson J, Brusasco V, Burgo F, Casaburi R, Coates A, Crapo R, Enright P, Van Der Grinten C, Gustafsson P, Jensen R, Johnson D, MacIntyre N, McKay R, Navajas D, Pedersen O, Pellegrino R, Viegi G, Wanger J. Standardisation de la spirométrie. Rev Mal Respir 2007. [DOI: 10.1016/s0761-8425(07)91117-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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31
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Simpson A, Hankinson J, Borg-Bartolo S, Lowe L, John S, Woodcock A, Ollier W, Custovic A. Haplotype Tagging SNPs in the Beta Adrenergic Receptor (ADRB2) Gene are Associated with Pre and Post-bronchodilator Lung Function in Preschool Children. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Miller MR, Hankinson J, Brusasco V, Burgos F, Casaburi R, Coates A, Crapo R, Enright P, van der Grinten CPM, Gustafsson P, Jensen R, Johnson DC, MacIntyre N, McKay R, Navajas D, Pedersen OF, Pellegrino R, Viegi G, Wanger J. Standardisation of spirometry. Eur Respir J 2006; 26:319-38. [PMID: 16055882 DOI: 10.1183/09031936.05.00034805] [Citation(s) in RCA: 10738] [Impact Index Per Article: 596.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- M R Miller
- University Hospital Birmingham NHS Trust, Birmingham, UK
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Macintyre N, Crapo RO, Viegi G, Johnson DC, van der Grinten CPM, Brusasco V, Burgos F, Casaburi R, Coates A, Enright P, Gustafsson P, Hankinson J, Jensen R, McKay R, Miller MR, Navajas D, Pedersen OF, Pellegrino R, Wanger J. Standardisation of the single-breath determination of carbon monoxide uptake in the lung. Eur Respir J 2006; 26:720-35. [PMID: 16204605 DOI: 10.1183/09031936.05.00034905] [Citation(s) in RCA: 1561] [Impact Index Per Article: 86.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- N Macintyre
- Duke University Medical Center, Durham, NC, USA
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34
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Pellegrino R, Viegi G, Brusasco V, Crapo RO, Burgos F, Casaburi R, Coates A, van der Grinten CPM, Gustafsson P, Hankinson J, Jensen R, Johnson DC, MacIntyre N, McKay R, Miller MR, Navajas D, Pedersen OF, Wanger J. Interpretative strategies for lung function tests. Eur Respir J 2006; 26:948-68. [PMID: 16264058 DOI: 10.1183/09031936.05.00035205] [Citation(s) in RCA: 3617] [Impact Index Per Article: 200.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- R Pellegrino
- Internal Medicine, University of Genoa, V.le Benedetto XV, 6, Genova I-16132, Italy
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Wanger J, Clausen JL, Coates A, Pedersen OF, Brusasco V, Burgos F, Casaburi R, Crapo R, Enright P, van der Grinten CPM, Gustafsson P, Hankinson J, Jensen R, Johnson D, Macintyre N, McKay R, Miller MR, Navajas D, Pellegrino R, Viegi G. Standardisation of the measurement of lung volumes. Eur Respir J 2005; 26:511-22. [PMID: 16135736 DOI: 10.1183/09031936.05.00035005] [Citation(s) in RCA: 1806] [Impact Index Per Article: 95.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J Wanger
- Internal Medicine, University of Genoa, V.le Benedetto XV, 6, I-16132 Genova, Italy
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36
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Miller MR, Crapo R, Hankinson J, Brusasco V, Burgos F, Casaburi R, Coates A, Enright P, van der Grinten CPM, Gustafsson P, Jensen R, Johnson DC, MacIntyre N, McKay R, Navajas D, Pedersen OF, Pellegrino R, Viegi G, Wanger J. General considerations for lung function testing. Eur Respir J 2005; 26:153-61. [PMID: 15994402 DOI: 10.1183/09031936.05.00034505] [Citation(s) in RCA: 1267] [Impact Index Per Article: 66.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M R Miller
- University Hospital Birmingham NHS Trust, UK
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Abstract
In this article, the evidence base for botulinum-A treatment acquired in recent years is outlined, and the practicalities involved in providing this service are described. Botulinum-A is relatively new, and possible improvements for the future are considered.
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Affiliation(s)
- R E Morton
- Ronnie MacKeith Child Development Centre, Derbyshire Children's' Hospital, Nottingham, UK.
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Abstract
Fourteen children aged 4 to 14 years with hip subluxation due to cerebral palsy (CP) were considered for a trial in a lying hip abduction system (Jenx Dreama, Jenx Limited, Sheffield, UK). Baseline data were recorded for 6 months, then assessments of the system were made for one year at 6 and 12 months. Assessments consisted of hip radiographs in the standard position, a parental questionnaire, and a sleep chart, which was completed by parents every Friday night during the trial. Three children could not enter the trial because of general sleep problems, and three could not complete it because they were unable to sleep with the system. One further child withdrew from the study just before the end because of unacceptable deterioration for which surgery was needed. The remaining seven children completed the trial and there was an overall improvement in rate of hip migration percentage on the right from 7% per annum in the baseline period to 4% with the system (p<0.05). On the left, changes were -3% and 0% respectively (ns). Average sleep at night changed from 9 to 9.4 hours (ns) and wakenings/night from 1 to 1.3 (ns). On the parental questionnaire, there were significant improvements noted with the system in position for seating and sleeping, ease of hip abduction for washing, and with pain reduction. This pilot study supports the use of this type of lying system but further studies are needed to establish the acceptability and efficacy of these systems, particularly in children aged 2 to 5 years when irreversible bony deformities of the hip tend to occur.
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Affiliation(s)
- J Hankinson
- Ronnie Mac Keith Child Development Centre, Derbyshire Children's Hospital, Derby, UK
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Morton R, Benton S, Bower E, Carroll-Few L, Hankinson J, Lingham S, Onslow D, Rhead S, Wallis S, Walter A. 'Multidisciplinary appraisal of the British Institute for Brain Injured Children, Somerset, UK'. Dev Med Child Neurol 1999; 41:211-2. [PMID: 10210256 DOI: 10.1017/s0012162299220415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Banks DE, Wang ML, McCabe L, Billie M, Hankinson J. Improvement in lung function measurements using a flow spirometer that emphasizes computer assessment of test quality. J Occup Environ Med 1996; 38:279-83. [PMID: 8882100 DOI: 10.1097/00043764-199603000-00013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We compared retrospective measurements of lung function from 101 steel workers using a commercially available spirometer to prospective lung function measurements performed, on average, 1.3 years later, with a newly developed spirometer. This spirometer was designed and developed to incorporate technology that provides immediate feedback on the quantitative and qualitative aspects of each forced expiratory effort. Of the 101 workers, 82 who had spirometry performed with each spirometer had at least two acceptable curves, and 51 workers tested with each spirometer had curves that met all American Thoracic Society (ATS) criteria for spirometry. No group showed the anticipated decline in forced expiratory volume in 1 second (FEV1) over time. The results showed an increased number of curves meeting ATS acceptability and reproducibility criteria, and a statistically significant increase in the FVC in all groups, and an increase in the FEV1 in the group encompassing all workers. Use of technology that strengthens the interaction between the spirometry technician, the data available to the technician on the computer, and the participant appears to represent true underlying lung function more accurately. Such an approach to the collection of lung function data should be considered by those evaluating spirometers for implementation in the workplace or pulmonary function laboratory as well as by those planning future spirometer development.
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Affiliation(s)
- D E Banks
- Section of Pulmonary and Critical Care Medicine, West Virginia University School of Medicine, Morgantown 26506-9166, USA
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Ingham HR, Kalbag RM, Sisson PR, Allcutt DA, Betty MJ, Crawford PJ, Gillham NR, Hankinson J, Sengupta RP, Strong AJ. Simple peroperative antimicrobial chemoprophylaxis in elective neurosurgical operations. J Hosp Infect 1988; 12:225-33. [PMID: 2904464 DOI: 10.1016/0195-6701(88)90011-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
From August 1981 to February 1982 postoperative infections due to different strains of penicillin-resistant Staphylococcus aureus occurred in 20 of 467 patients (4.3%) undergoing elective cranial and spinal operations. These infections were not attributable to defects in procedures or the theatre environment, therefore chemoprophylaxis was instituted. In the following 8 months, when patients were given penicillin G and sulphadiazine for 5 days commencing immediately postoperatively, S. aureus infections occurred in five of 579 patients (0.9%). In a subsequent randomized uncontrolled study, infections occurred in six of 265 patients receiving penicillin (2.3%), three of 270 receiving penicillin and sulphadiazine (1.1%) and one of 45 receiving erythromycin (2.2%) immediately postoperatively for 5 days. In a further study in which 587 patients received penicillin for 5 days commencing immediately preoperatively, infections due to S. aureus occurred in six (1.1%). Infections due to gram-negative organisms were seen in five (0.4%) of 1167 patients in the two uncontrolled studies.
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Affiliation(s)
- H R Ingham
- Department of Microbiology, Newcastle General Hospital
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Glenn R, Amandus H, Hankinson J, Petersen M, Pickett-Harner M. ORD--NIOSH prevention strategy and selected research. Am Ind Hyg Assoc J 1986; 47:674-80. [PMID: 2948382 DOI: 10.1080/15298668691390458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Hodous TK, Boyles C, Hankinson J. Effects of industrial respirator wear during exercise in subjects with restrictive lung disease. Am Ind Hyg Assoc J 1986; 47:176-80. [PMID: 3706144 DOI: 10.1080/15298668691389540] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Few studies have examined the response of individuals with restrictive lung disease (RLD) to respirator wear. Such information should be of theoretical and practical interest when the need to determine fitness to wear respirators is considered. Seventeen females performed progressive submaximal treadmill exercise. Twelve control subjects with total lung capacity (TLC) = 5.71 +/- .19L (mean +/- SEM) and DLCO = 25.8 +/- 1.0 mL/min/mmHg were compared to five RLD subjects with TLC = 3.70 +/- 0.22 and DLCO = 14.5 +/- 0.7. Mean age, height and weight were similar. Separate exercise trials were performed with no added resistance (NAR), and with 5 cm H2O/L/sec inspiratory and 1.5 cm H2O/L/sec expiratory resistance (R2) to stimulate widely used respiratory masks. Comparisons of exercise data were made at an oxygen consumption of 0.8 L/min. With NAR, RLD subjects had significantly higher minute ventilation (VE) (29.0 vs. 21.2 L/min for controls), higher respiratory rate (RR), and lower tidal volume (VT). Heart rate, end-tidal PCO2 (PETCO2), and mouth pressure swing (Poral) were not different from control values. With R2 compared to NAR, the controls had reduced RR and VE; and increased VT, PETCO2, and Poral. While changes with R2 for the RLD subjects were in the same directions as controls, only the increase in Poral was statistically significant. Analysis of the differences showed that none of the changes with R2 in RLD subjects was different from control changes except for the greater increase in Poral and the smaller increase in VT. The former was explained by the RLD subjects' higher VE and flow rates, and the non-linear nature of R2 at higher flow rates.(ABSTRACT TRUNCATED AT 250 WORDS)
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Hodous TK, Petsonk L, Boyles C, Hankinson J, Amandus H. Effects of added resistance to breathing during exercise in obstructive lung disease. Am Rev Respir Dis 1983; 128:943-948. [PMID: 6638685 DOI: 10.1164/arrd.1983.128.5.943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Forty-nine men performed progressive submaximal treadmill exercise to determine the cardiopulmonary and subjective response to added resistance to breathing. Twenty subjects (controls), FEV1/FVC% = 79.2 +/- 1.4 (mean +/- SEM), were compared with 19 mildly obstructed men (OB1), FEV1/FVC% = 66.9 +/- 0.5, and 10 with moderate obstruction (OB2), FEV1/FVC% = 53.7 +/- 1.9. Separate exercise trials were performed with no added resistance (NAR), R1 = 3.5 cm H2O/L/s inspiratory and 1.5 cm H2O/L/s expiratory resistance, and R2 = 5 cm HKO/L/s inspiratory and 1.5 cm H2O/L/s expiratory resistance. Analysis of cardiopulmonary parameters was made at an oxygen consumption rate of VO2 = 1.5 L/min for all 3 obstruction groups at all 3 resistances. With NAR, all 3 groups had similar respiratory rate (RR), tidal volume (VT), minute ventilation (VE), end-tidal PCO2 (PETCO2), respiratory exchange ratio (R), heart rate (HR), and mouth pressure swing (Poral). With both R1 and R2 compared with NAR, control and OB1 subjects (at VO2 = 1.5 L/min) had reduced RR, VE, and R, and increased VT and Poral (p less than 0.01 for all). Changes with added resistance for OB2 subjects were in the same directions, but were significant only for VE and with R1 for RR. Heart rate did not change; PETCO2 increased in control subjects and with R2 in OB1 subjects. Separate analysis showed that except for the smaller increase in PETCO2 in OB2 subjects, none of the changes with added resistance in the OB1 or OB2 groups were different from changes in the control group.(ABSTRACT TRUNCATED AT 250 WORDS)
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Wardle JK, Stokes ER, Ingham HR, Betty MJ, Hankinson J, Kalbag RM, Sengupta RP, Strong AJ. Ventilation in operating rooms. Br Med J (Clin Res Ed) 1983; 286:557. [PMID: 6402145 PMCID: PMC1546566 DOI: 10.1136/bmj.286.6364.557-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Abstract
In 100 patients who underwent major cranial or spinal operations, the incidence of lower extremity deep vein thrombosis was 29%. Of importance was the presence of known risk factors, particularly leg weakness and a long operation. The subject of deep vein thrombosis and its complications in neurosurgical disorders is reviewed and its prophylaxis is discussed. The administration of low dose heparin based on an epidemiological analysis of the risks involved would seem to be an effective method of prophylaxis.
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Hankinson J. Progress in Neurological Surgery 9 Microsurgical Approach to Cerebrospinal Lesions. J Neurol Psychiatry 1979. [DOI: 10.1136/jnnp.42.12.1169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
A 49-year-old female patient with six intracranial aneurysms, all of which were treated successfully by direct surgery, is reported. She had a major subarachnoid haemorrhage 10 years ago. Because of difficulty in identifying the offending aneurysm she was not surgically treated at that time. The natural progression of intracranial aneurysms, the problem of identifying the lesion in a patient with multiple aneurysms, and an example of excellent recovery of visual function following surgical treatment are discussed.
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Abstract
The case of a 31 years old woman with multiple intracranial mycotic aneurysms in association with subacute bacterial endocarditis is reported. The authors discuss the clinical and pathological aspects of such lesions. The complete regression of all the aneurysms after antibiotic therapy favours an approach aiming at adequate control of the infection prior to any consideration of surgical treatment.
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Hankinson J. An Introduction to Neurosurgery. J Neurol Psychiatry 1978. [DOI: 10.1136/jnnp.41.11.1055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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