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Espuela-Ortiz A, Martin-Gonzalez E, Poza-Guedes P, González-Pérez R, Herrera-Luis E. Genomics of Treatable Traits in Asthma. Genes (Basel) 2023; 14:1824. [PMID: 37761964 PMCID: PMC10531302 DOI: 10.3390/genes14091824] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 09/29/2023] Open
Abstract
The astounding number of genetic variants revealed in the 15 years of genome-wide association studies of asthma has not kept pace with the goals of translational genomics. Moving asthma diagnosis from a nonspecific umbrella term to specific phenotypes/endotypes and related traits may provide insights into features that may be prevented or alleviated by therapeutical intervention. This review provides an overview of the different asthma endotypes and phenotypes and the genomic findings from asthma studies using patient stratification strategies and asthma-related traits. Asthma genomic research for treatable traits has uncovered novel and previously reported asthma loci, primarily through studies in Europeans. Novel genomic findings for asthma phenotypes and related traits may arise from multi-trait and specific phenotyping strategies in diverse populations.
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Affiliation(s)
- Antonio Espuela-Ortiz
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), 38200 San Cristóbal de La Laguna, Tenerife, Spain; (A.E.-O.); (E.M.-G.)
| | - Elena Martin-Gonzalez
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), 38200 San Cristóbal de La Laguna, Tenerife, Spain; (A.E.-O.); (E.M.-G.)
| | - Paloma Poza-Guedes
- Allergy Department, Hospital Universitario de Canarias, 38320 Santa Cruz de Tenerife, Tenerife, Spain; (P.P.-G.); (R.G.-P.)
- Severe Asthma Unit, Hospital Universitario de Canarias, 38320 San Cristóbal de La Laguna, Tenerife, Spain
| | - Ruperto González-Pérez
- Allergy Department, Hospital Universitario de Canarias, 38320 Santa Cruz de Tenerife, Tenerife, Spain; (P.P.-G.); (R.G.-P.)
- Severe Asthma Unit, Hospital Universitario de Canarias, 38320 San Cristóbal de La Laguna, Tenerife, Spain
| | - Esther Herrera-Luis
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
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2
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Gao Y, Zhong Z, Yang P. Genetics in Behcet's Disease: An Update Review. FRONTIERS IN OPHTHALMOLOGY 2022; 2:916887. [PMID: 38983559 PMCID: PMC11182159 DOI: 10.3389/fopht.2022.916887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 05/04/2022] [Indexed: 07/11/2024]
Abstract
Behcet's disease (BD) is one of the most vision-threatening clinical entities of uveitis. Although the etiopathogenesis of BD remains obscure, accumulating evidence has demonstrated that both genetic and environmental factors may contribute to the development of BD. Genome-wide association studies (GWAS) and candidate association studies have identified several genetic variants strongly associated with BD, including variants in human leukocyte antigen (HLA) -A02, -A03, -A24, -A26, -A31, -B15, -B27, -B35, -B49, -B51, -B57, -B58, -C0704, CIITA, ERAP1, MICA, IL1A-IL1B, IL10, IL12, IL23R, IL-23R/IL-12RB2, IL1RL1-IL18R1, STAT4, TFCP2L1, TRAF5, TNFAIP3, CCR1/CCR3, RIPK2, ADO-ZNF365-EGR2, KLRC4, LACC1, MEFV, IRF8, FUT2, CEBPB-PTPN1, ZMIZ1, RPS6KA4, IL10RA, SIPA1-FIBP-FOSL1, VAMP1, JRKL/CTCN5, IFNGR1 and miRNA-146a. Epigenetic modifications are also reported to play essential roles in the development of BD, including DNA methylation and histone modification. We review here the recent advances in the genetic and epigenetic factors associated with the BD pathogenesis.
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Affiliation(s)
| | | | - Peizeng Yang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, and Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
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3
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Koefoed HJL, Vonk JM, Koppelman GH. Predicting the course of asthma from childhood until early adulthood. Curr Opin Allergy Clin Immunol 2022; 22:115-122. [PMID: 35197433 PMCID: PMC8915994 DOI: 10.1097/aci.0000000000000810] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW To communicate recent insights about the natural history of childhood asthma, with a focus on prediction of persistence and remission of childhood asthma, up to early adulthood. RECENT FINDINGS Lung function around the age of 8-9 years is the strongest predictor: obstructive lung function predicts asthma persistence up to early adulthood, whereas normal lung function predicts remission. The ability to predict asthma remission improves when lung function is combined with blood eosinophil levels and degree of bronchial hyperresponsiveness. Interventions, such as inhaled corticosteroids and immunotherapy do not appear to alter the course of asthma. Epigenetic studies have revealed potential novel biomarkers of asthma remission, such as micro-RNA patterns in blood. Specifically, lower serum levels of mi-R221-5p, which is associated with lower IL-6 release and eosinophilic inflammation, predict remission. Higher levels of blood DNA-methylation of a CpG site in Peroxisomal Biogenesis Factor 11 Beta were associated with asthma remission. SUMMARY Lung function, allergic comorbidity and polysensitization in childhood predict the course of asthma. Recent epigenetic studies have provided a better understanding of underlying pathological processes in asthma remission, which may be used to improve prediction or develop novel treatments aimed at altering the course of asthma.
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Affiliation(s)
- Hans Jacob L. Koefoed
- Department of Pediatric Pulmonology and Pediatric Allergology, Beatrix Children's Hospital
- Groningen Research Institute for Asthma and COPD (GRIAC)
| | - Judith M. Vonk
- Groningen Research Institute for Asthma and COPD (GRIAC)
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Gerard H. Koppelman
- Department of Pediatric Pulmonology and Pediatric Allergology, Beatrix Children's Hospital
- Groningen Research Institute for Asthma and COPD (GRIAC)
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4
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Räisänen P, Backman H, Hedman L, Andersson M, Stridsman C, Kankaanranta H, Ilmarinen P, Andersen H, Piirilä P, Lindberg A, Lundbäck B, Rönmark E. High but stable incidence of adult-onset asthma in northern Sweden over the last decades. ERJ Open Res 2021; 7:00262-2021. [PMID: 34235212 PMCID: PMC8255544 DOI: 10.1183/23120541.00262-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 05/27/2021] [Indexed: 11/08/2022] Open
Abstract
Background The prevalence of asthma has increased both among children and adults during the latter half of the 20th century. The prevalence among adults is affected by the incidence of asthma not only in childhood but also in adulthood. Time trends in asthma incidence have been poorly studied. Aims The aim of this study was to review the incidence of adult-onset asthma from 1996 to 2006 and 2006 to 2016 and compare the risk factor patterns. Methods In the Obstructive Lung Disease in Northern Sweden (OLIN) studies, two randomly selected population-based samples in the 20–69-year age group participated in postal questionnaire surveys about asthma in 1996 (n=7104, 85%) and 2006 (n=6165, 77%). A 10-year follow-up of the two cohorts with the same validated questionnaire was performed, and 5709 and 4552 responded, respectively. Different definitions of population at risk were used in the calculations of asthma incidence. The protocol followed a study performed between 1986 and 1996 in the same area. Results The crude incidence rate of physician-diagnosed asthma was 4.4 per 1000 person-years (men 3.8, women 5.5) from 1996 to 2006, and 4.8 per 1000 person-years (men 3.7, women 6.2) from 2006 to 2016. When correcting for possible under-diagnosis at study entry, the incidence rate was 2.4 per 1000 person-years from 1996 to 2006 and 2.6 per 1000 person-years from 2006 to 2016. The incidence rates were similar across age groups. Allergic rhino-conjunctivitis was the main risk factor for incident asthma in both observation periods (risk ratio 2.4–2.6). Conclusions The incidence of adult-onset asthma has been stable over the last two decades and has remained at a similar level since the 1980s. The high incidence contributes to the increase in asthma prevalence. The incidence of adult-onset asthma in adults has been stable in Sweden over the last 30 years but the relatively high incidence rate in combination with low remission rate in adulthood contributes to the reported increase in asthma prevalence among adultshttps://bit.ly/2QP0AF4
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Affiliation(s)
- Petri Räisänen
- Dept of Public Health and Clinical Medicine, Section of Sustainable Health, the OLIN unit, Umeå University, Umeå, Sweden
| | - Helena Backman
- Dept of Public Health and Clinical Medicine, Section of Sustainable Health, the OLIN unit, Umeå University, Umeå, Sweden.,Dept of Health Sciences, Luleå University of Technology, Luleå, Sweden
| | - Linnea Hedman
- Dept of Public Health and Clinical Medicine, Section of Sustainable Health, the OLIN unit, Umeå University, Umeå, Sweden.,Dept of Health Sciences, Luleå University of Technology, Luleå, Sweden
| | - Martin Andersson
- Dept of Public Health and Clinical Medicine, Section of Sustainable Health, the OLIN unit, Umeå University, Umeå, Sweden
| | - Caroline Stridsman
- Dept of Public Health and Clinical Medicine, Section of Medicine, the OLIN unit, Umeå University, Umeå, Sweden
| | - Hannu Kankaanranta
- Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Dept of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Pinja Ilmarinen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Dept of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Heidi Andersen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Päivi Piirilä
- Unit of Clinical Physiology, HUS Medical Diagnostic Center, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Anne Lindberg
- Dept of Public Health and Clinical Medicine, Section of Medicine, the OLIN unit, Umeå University, Umeå, Sweden
| | - Bo Lundbäck
- Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Eva Rönmark
- Dept of Public Health and Clinical Medicine, Section of Sustainable Health, the OLIN unit, Umeå University, Umeå, Sweden
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5
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Qi C, Vonk JM, van der Plaat DA, Nieuwenhuis MAE, Dijk FN, Aïssi D, Siroux V, Boezen HM, Xu CJ, Koppelman GH. Epigenome-wide association study identifies DNA methylation markers for asthma remission in whole blood and nasal epithelium. Clin Transl Allergy 2020; 10:60. [PMID: 33303027 PMCID: PMC7731549 DOI: 10.1186/s13601-020-00365-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/26/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Asthma is a chronic respiratory disease which is not curable, yet some patients experience spontaneous remission. We hypothesized that epigenetic mechanisms may be involved in asthma remission. METHODS Clinical remission (ClinR) was defined as the absence of asthma symptoms and medication for at least 12 months, and complete remission (ComR) was defined as ClinR with normal lung function and absence of airway hyperresponsiveness. We analyzed differential DNA methylation of ClinR and ComR comparing to persistent asthma (PersA) in whole blood samples (n = 72) and nasal brushing samples (n = 97) in a longitudinal cohort of well characterized asthma patients. Significant findings of whole blood DNA methylation were tested for replication in two independent cohorts, Lifelines and Epidemiological study on the Genetics and Environment of Asthma (EGEA). RESULTS We identified differentially methylated CpG sites associated with ClinR (7 CpG sites) and ComR (129 CpG sites) in whole blood. One CpG (cg13378519, Chr1) associated with ClinR was replicated and annotated to PEX11 (Peroxisomal Biogenesis Factor 11 Beta). The whole blood DNA methylation levels of this CpG were also different between ClinR and healthy subjects. One ComR-associated CpG (cg24788483, Chr10) that annotated to TCF7L2 (Transcription Factor 7 Like 2) was replicated and associated with expression of TCF7L2 gene. One out of seven ClinR-associated CpG sites and 8 out of 129 ComR-associated CpG sites identified from whole blood samples showed nominal significance (P < 0.05) and the same direction of effect in nasal brushes. CONCLUSION We identified DNA methylation markers possibly associated with clinical and complete asthma remission in nasal brushes and whole blood, and two CpG sites identified from whole blood can be replicated in independent cohorts and may play a role in peroxisome proliferation and Wnt signaling pathway.
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Affiliation(s)
- Cancan Qi
- Department of Pediatric Pulmonology and Pediatric Allergy, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB, Groningen, the Netherlands.,GRIAC Research Institute, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Judith M Vonk
- GRIAC Research Institute, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Diana A van der Plaat
- GRIAC Research Institute, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Maartje A E Nieuwenhuis
- GRIAC Research Institute, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - F Nicole Dijk
- Department of Pediatric Pulmonology and Pediatric Allergy, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB, Groningen, the Netherlands.,GRIAC Research Institute, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | | | - Dylan Aïssi
- University Grenoble Alpes, Inserm, CNRS, Team of environmental epidemiology applied to Reproduction and Respiratory health, IAB (Institute for Advanced Biosciences), 38000, Grenoble, France
| | - Valérie Siroux
- University Grenoble Alpes, Inserm, CNRS, Team of environmental epidemiology applied to Reproduction and Respiratory health, IAB (Institute for Advanced Biosciences), 38000, Grenoble, France
| | - H Marike Boezen
- GRIAC Research Institute, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Cheng-Jian Xu
- Research Group of Bioinformatics and Computational Genomics, CiiM, Centre for individualized infection medicine, A Joint Venture Between Hannover Medical School and the Helmholtz Centre for Infection Research, Hannover, Germany.,Department of Gastroenterology, Hepatology and Endocrinology, TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture Between the Hannover Medical School and the Helmholtz Centre for Infection Research, Hannover, Germany.,Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Gerard H Koppelman
- Department of Pediatric Pulmonology and Pediatric Allergy, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB, Groningen, the Netherlands. .,GRIAC Research Institute, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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6
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Asthma genomics and pharmacogenomics. Curr Opin Immunol 2020; 66:136-142. [PMID: 33171417 DOI: 10.1016/j.coi.2020.10.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 10/04/2020] [Indexed: 12/16/2022]
Abstract
In this review, we summarize recent published work interrogating the relationship between genetic variation or gene expression regulation across the genome and asthma or asthma treatment outcomes. This includes 11 genome-wide association studies of asthma phenotypes that collectively identified 64 novel loci; transcriptome-wide asthma association studies which identified genes involved in virus recognition, bacterial infection, lung tissue remodeling, eosinophilic and neutrophilic inflammation and genes in the chromosome 17q12 asthma susceptibility locus; and three epigenome-wide studies of asthma that had robust sample sizes and replicated findings. We also highlight pharmacogenomic studies of corticosteroids, bronchodilator response to albuterol and zileuton, although finding from these studies may still be preliminary due to their relatively small sample sizes and limited availability of replication cohorts.
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7
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Wang J, Zhang Y, Zeng Y, Ge S, Sun X, Jia M, Wu Y, Wang N. Isoimperatorin reduces the effective dose of dexamethasone in a murine model of asthma by inhibiting mast cell activation. Phytother Res 2020; 34:2985-2997. [PMID: 32491281 DOI: 10.1002/ptr.6726] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 04/03/2020] [Accepted: 04/25/2020] [Indexed: 01/18/2023]
Abstract
Adverse effects that result from dexamethasone (DEX) use are common and serious in patients with asthma. Therefore, alternative anti-inflammatory treatments are being investigated. Isoimperatorin (ISO), an active natural furocoumarin, possesses multiple pharmacological properties, including an anti-inflammation effect. In this study, investigations were conducted on the effect of ISO on mast cell (MC) activation in vitro and whether ISO could reduce the effective dose of DEX in a mast cell-dependent murine model of asthma in vivo. Calcium imaging was used to assess intracellular Ca2+ mobilization. Enzyme-linked immunosorbent assay was used to measure the chemokines release. Western blot analysis was conducted to investigate the underlying pathway. Airway inflammation and hyperresponsiveness (AHR) were examined in an asthma model. ISO inhibited Ca2+ flux and MC degranulation via Lyn/PLCγ1/PKC, ERK, and P38 MAPK pathways. In the asthma model, ISO, in combination with DEX, showed an additive inhibitory effect on AHR, inflammation, and the number of activated MCs in the lungs and decreased the levels of interleukin (IL)-4, IL-5, IL-6, IL-13, tumor necrosis factor (TNF)-a, and C-C motif chemokine ligand (CCL)-2 in bronchoalveolar lavage fluid. A combination of DEX and ISO may be appropriate if a decrease in the steroid dose is desired owing to dose-dependent adverse effects.
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Affiliation(s)
- Jue Wang
- College of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Yongjing Zhang
- College of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Yingnan Zeng
- College of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Shuai Ge
- College of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Xiuzhen Sun
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Min Jia
- Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| | - Yuanyuan Wu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Nan Wang
- College of Pharmacy, Xi'an Jiaotong University, Xi'an, China
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8
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Genetic profiling for disease stratification in chronic obstructive pulmonary disease and asthma. Curr Opin Pulm Med 2020; 25:317-322. [PMID: 30762612 DOI: 10.1097/mcp.0000000000000568] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW In asthma and chronic obstructive pulmonary disease (COPD), the movement towards genetic profiling with a push towards 'personalized medicine' has been hindered by complex environment--gene interactions and lack of tools to identify clear causal genetic traits. In this review, we will discuss the need for genetic profiling in asthma and COPD, what methods are currently used in the clinics and the recent finding using new sequencing methods. RECENT FINDINGS Over the past 10-15 years, genome-wide association studies analysis of common variants has provide little in the way of new genetic profiling markers for asthma and COPD. Whole exome/genome sequencing has provided a new method to identify lowly abundant alleles, which might have a much higher impact. Although, low population numbers due to high costs has hindered early studies, recent studies have reached genome wide significance. SUMMARY The use of genetic profiling of COPD in the clinic is current limited to the identification of Alpha-1 antitrypsin deficiency, while being absent in asthma. Advances in sequencing technology provide new avenues to identify disease causes or therapy response altering variants that in the short-term will allow for the development of screening procedures for disease to identify patients at risk of developing asthma or COPD.
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9
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Laulajainen-Hongisto A, Toppila-Salmi SK, Luukkainen A, Kern R. Airway Epithelial Dynamics in Allergy and Related Chronic Inflammatory Airway Diseases. Front Cell Dev Biol 2020; 8:204. [PMID: 32292784 PMCID: PMC7118214 DOI: 10.3389/fcell.2020.00204] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/10/2020] [Indexed: 12/12/2022] Open
Abstract
Allergic rhinitis, chronic rhinosinusitis, and asthma are highly prevalent, multifactorial chronic airway diseases. Several environmental and genetic factors affect airway epithelial dynamics leading to activation of inflammatory mechanisms in the airways. This review links environmental factors to host epithelial immunity in airway diseases. Understanding altered homeostasis of the airway epithelium might provide important targets for diagnostics and therapy of chronic airway diseases.
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Affiliation(s)
- Anu Laulajainen-Hongisto
- Department of Otorhinolaryngology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland.,Laboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
| | - Sanna Katriina Toppila-Salmi
- Haartman Institute, Medicum, University of Helsinki, Helsinki, Finland.,Skin and Allergy Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Annika Luukkainen
- Haartman Institute, Medicum, University of Helsinki, Helsinki, Finland
| | - Robert Kern
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
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10
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Vermeulen CJ, Xu CJ, Vonk JM, Ten Hacken NHT, Timens W, Heijink IH, Nawijn MC, Boekhoudt J, van Oosterhout AJ, Affleck K, Weckmann M, Koppelman GH, van den Berge M. Differential DNA methylation in bronchial biopsies between persistent asthma and asthma in remission. Eur Respir J 2020; 55:13993003.01280-2019. [PMID: 31699840 DOI: 10.1183/13993003.01280-2019] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/18/2019] [Indexed: 11/05/2022]
Abstract
Approximately 40% of asthmatics experience remission of asthma symptoms. A better understanding of biological pathways leading to asthma remission may provide insight into new therapeutic targets for asthma. As an important mechanism of gene regulation, investigation of DNA methylation provides a promising approach. Our objective was to identify differences in epigenome wide DNA methylation levels in bronchial biopsies between subjects with asthma remission and subjects with persistent asthma or healthy controls.We analysed differential DNA methylation in bronchial biopsies from 26 subjects with persistent asthma, 39 remission subjects and 70 healthy controls, using the limma package. The comb-p tool was used to identify differentially methylated regions. DNA methylation of CpG-sites was associated to expression of nearby genes from the same biopsies to understand function.Four CpG-sites and 42 regions were differentially methylated between persistent asthma and remission. DNA methylation at two sites was correlated i n cis with gene expression at ACKR2 and DGKQ Between remission subjects and healthy controls 1163 CpG-sites and 328 regions were differentially methylated. DNA methylation was associated with expression of a set of genes expressed in ciliated epithelium.CpGs differentially methylated between remission and persistent asthma identify genetic loci associated with resolution of inflammation and airway responsiveness. Despite the absence of symptoms, remission subjects have a DNA methylation profile that is distinct from that of healthy controls, partly due to changes in cellular composition, with a higher gene expression signal related to ciliated epithelium in remission versus healthy controls.
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Affiliation(s)
- Cornelis J Vermeulen
- Dept of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands .,University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands
| | - Cheng-Jian Xu
- University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands.,Dept of Pediatric Pulmonology and Pediatric Allergology, University of Groningen, University Medical Center Groningen, Beatrix Children's Hospital, Groningen, The Netherlands.,CiiM & TWINCORE, Helmholtz-Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany
| | - Judith M Vonk
- University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands.,Dept of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Nick H T Ten Hacken
- Dept of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands
| | - Wim Timens
- University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands.,Dept of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Irene H Heijink
- Dept of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands.,Dept of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Martijn C Nawijn
- University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands.,Dept of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jeunard Boekhoudt
- Dept of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | | | - Karen Affleck
- Allergic Inflammation Discovery Performance Unit, GlaxoSmithKline, Stevenage, UK
| | - Markus Weckmann
- Dept of Pediatric Pneumology and Allergology, University Medical Center of Schlesswig-Holstein, Airway Research Centre North, Member of the German Centre of Lung Research, Lübeck, Germany
| | - Gerard H Koppelman
- University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands.,Dept of Pediatric Pulmonology and Pediatric Allergology, University of Groningen, University Medical Center Groningen, Beatrix Children's Hospital, Groningen, The Netherlands
| | - Maarten van den Berge
- Dept of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands
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11
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Roberts G. The British Society of Allergy and Clinical Immunology annual meeting, 2018. Clin Exp Allergy 2019; 48:1250-1251. [PMID: 30261557 DOI: 10.1111/cea.13269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- G Roberts
- Clinical and Experimental Sciences and Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,The David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Isle of Wight, UK
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Schoettler N, Rodríguez E, Weidinger S, Ober C. Advances in asthma and allergic disease genetics: Is bigger always better? J Allergy Clin Immunol 2019; 144:1495-1506. [PMID: 31677964 DOI: 10.1016/j.jaci.2019.10.023] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/22/2019] [Accepted: 10/23/2019] [Indexed: 12/13/2022]
Abstract
This review focuses on genome-wide association studies (GWASs) of asthma and allergic diseases published between January 1, 2018, and June 30, 2019. During this time period, there were 38 GWASs reported in 19 articles, including the largest performed to date for many of these conditions. Overall, we learned that childhood-onset asthma is associated with the most independent loci compared with other defined groups of asthma and allergic disease cases; adult-onset asthma and moderate-to-severe asthma are associated with fewer genes, which are largely a subset of those associated with childhood-onset asthma. There is significant genetic overlap between asthma and allergic diseases, particularly with respect to childhood-onset asthma, which involves genes that reflect the importance of barrier function biology, and to HLA region genes, which are the most frequently associated genes overall in both groups of diseases. Although the largest GWASs in African American and Latino/Hispanic populations were reported during this period, they are still significantly underpowered compared with studies reported in populations of European ancestry, highlighting the need for larger studies, particularly in patients with childhood-onset asthma and allergic diseases, in these important populations that carry the greatest burden of disease.
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Affiliation(s)
- Nathan Schoettler
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, Ill; Department of Human Genetics, University of Chicago, Chicago, Ill.
| | - Elke Rodríguez
- Department of Dermatology, Allergology and Venereology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Stephan Weidinger
- Department of Dermatology, Allergology and Venereology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Carole Ober
- Department of Human Genetics, University of Chicago, Chicago, Ill
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Carpaij OA, Burgess JK, Kerstjens HAM, Nawijn MC, van den Berge M. A review on the pathophysiology of asthma remission. Pharmacol Ther 2019; 201:8-24. [PMID: 31075356 DOI: 10.1016/j.pharmthera.2019.05.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/02/2019] [Indexed: 01/28/2023]
Abstract
Asthma is a chronic respiratory condition, which is highly prevalent worldwide. Although no cure is currently available, it is well recognized that some asthma patients can spontaneously enter remission of the disease later in life. Asthma remission is characterized by absence of symptoms and lack of asthma-medication use. Subjects in asthma remission can be divided into two groups: those in clinical remission and those in complete remission. In clinical asthma remission, subjects still have a degree of lung functional impairment or bronchial hyperresponsiveness, while in complete asthma remission, these features are no longer present. Over longer periods, the latter group is less likely to relapse. This remission group is of great scientific interest due to the higher potential to find biomarkers or biological pathways that elicit or are associated with asthma remission. Despite the fact that the definition of asthma remission varies between studies, some factors are reproducibly observed to be associated with remitted asthma. Among these are lower levels of inflammatory markers, which are lowest in complete remission. Additionally, in both groups some degree of airway remodeling is present. Still, the pathological disease state of asthma remission has been poorly investigated. Future research should focus on at least two aspects: further characterisation of the small airways and airway walls in order to determine histologically true remission, and more thorough biological pathway analyses to explore triggers that elicit this phenomenon. Ultimately, this will result in pharmacological targets that provide the potential to steer the course of asthma towards remission.
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Affiliation(s)
- Orestes A Carpaij
- University of Groningen, University Medical Center Groningen, Groningen, Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Pulmonology, Groningen, the Netherlands.
| | - Janette K Burgess
- University of Groningen, University Medical Center Groningen, Groningen, Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, the Netherlands
| | - Huib A M Kerstjens
- University of Groningen, University Medical Center Groningen, Groningen, Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Pulmonology, Groningen, the Netherlands
| | - Martijn C Nawijn
- University of Groningen, University Medical Center Groningen, Groningen, Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, the Netherlands
| | - Maarten van den Berge
- University of Groningen, University Medical Center Groningen, Groningen, Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Pulmonology, Groningen, the Netherlands
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Tse SM, Krajinovic M, Chauhan BF, Zemek R, Gravel J, Chalut D, Poonai N, Quach C, Laberge S, Ducharme FM. Genetic determinants of acute asthma therapy response in children with moderate-to-severe asthma exacerbations. Pediatr Pulmonol 2019; 54:378-385. [PMID: 30644648 DOI: 10.1002/ppul.24247] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 12/13/2018] [Indexed: 11/08/2022]
Abstract
BACKGROUND We documented inter-individual variability in the response to acute asthma therapy in children, attributed in part to five clinical factors (oxygen saturation, asthma severity score, virus detection, fever, symptoms between exacerbations; DOORWAY study). The contribution of genetic determinants of failure of acute asthma management have not been elucidated. OBJECTIVE We aim to determine single nucleotide polymorphisms (SNP) associated with emergency department (ED) management failure in children. METHODS A prospective cohort of 591 Caucasian children aged 1-17 years with moderate-to-severe asthma managed with standardized protocol were included. We examined 53 SNPs previously associated with asthma development, phenotypes, or bronchodilator or corticosteroids response. Associations between SNPs and management failure (hospitalization, active asthma management ≥8 h in ED, or a return visit within 72 h for one of two previous criteria) were examined using logistic regression, adjusting for the five clinical predictors of management failure. RESULTS Four-hundred ninety-one subjects had complete clinical data and usable DNA samples. While controlling for clinical determinants, rs295137 in SPATS2L (OR = 1.77, 95%CI: 1.17, 2.68) was significantly associated with increased odds of ED management failure. Two SNPs in IL33 were associated with decreased odds of ED management failure: rs7037276 (OR = 0.55, 95%CI: 0.33, 0.90), and rs1342326 (OR = 0.52, 95%CI: 0.32, 0.86). The addition of these three SNPs to the clinical predictors significantly improved the model's predictive performance (P < 0.0004). CONCLUSION Three SNPs were significantly associated with ED management failure in addition to clinical predictors, contributing to inter-individual variability. None has been previously associated with treatment response to acute asthma management.
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Affiliation(s)
- Sze Man Tse
- Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada.,Research Centre, Sainte-Justine University Health Centre, Montreal, Quebec, Canada
| | - Maja Krajinovic
- Research Centre, Sainte-Justine University Health Centre, Montreal, Quebec, Canada
| | - Bhupendrasinh F Chauhan
- Faculty of Pharmacy, University of Manitoba, Winnipeg, Manitoba, Canada.,Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Roger Zemek
- Department of Pediatrics and Emergency Medicine, University of Ottawa, Ontario, Canada.,Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Jocelyn Gravel
- Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada.,Research Centre, Sainte-Justine University Health Centre, Montreal, Quebec, Canada
| | - Dominic Chalut
- Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada
| | - Naveen Poonai
- Children's Hospital, London Health Sciences Center, London, Ontario, Canada
| | - Caroline Quach
- Research Centre, Sainte-Justine University Health Centre, Montreal, Quebec, Canada.,Department of Microbiology, Infectious Diseases, and Immunology, University of Montreal, Montreal, Quebec, Canada
| | - Sophie Laberge
- Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada.,Research Centre, Sainte-Justine University Health Centre, Montreal, Quebec, Canada
| | - Francine M Ducharme
- Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada.,Research Centre, Sainte-Justine University Health Centre, Montreal, Quebec, Canada.,Department of Social and Preventive Medicine, University of Montreal, Montreal, Quebec, Canada
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Wang AL, Tantisira KG. Reply. J Allergy Clin Immunol 2019; 143:1975. [PMID: 30876727 DOI: 10.1016/j.jaci.2019.01.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 01/31/2019] [Indexed: 10/27/2022]
Affiliation(s)
- Alberta L Wang
- Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass; Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass.
| | - Kelan G Tantisira
- Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass; Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
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