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Szczesny B, Boorgula MP, Chavan S, Campbell M, Johnson RK, Kammers K, Thompson EE, Cox MS, Shankar G, Cox C, Morin A, Lorizio W, Daya M, Kelada SNP, Beaty TH, Doumatey AP, Cruz AA, Watson H, Naureckas ET, Giles BL, Arinola GA, Sogaolu O, Falade AG, Hansel NN, Yang IV, Olopade CO, Rotimi CN, Landis RC, Figueiredo CA, Altman MC, Kenny E, Ruczinski I, Liu AH, Ober C, Taub MA, Barnes KC, Mathias RA. Multi-omics in nasal epithelium reveals three axes of dysregulation for asthma risk in the African Diaspora populations. Nat Commun 2024; 15:4546. [PMID: 38806494 PMCID: PMC11133339 DOI: 10.1038/s41467-024-48507-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 05/02/2024] [Indexed: 05/30/2024] Open
Abstract
Asthma has striking disparities across ancestral groups, but the molecular underpinning of these differences is poorly understood and minimally studied. A goal of the Consortium on Asthma among African-ancestry Populations in the Americas (CAAPA) is to understand multi-omic signatures of asthma focusing on populations of African ancestry. RNASeq and DNA methylation data are generated from nasal epithelium including cases (current asthma, N = 253) and controls (never-asthma, N = 283) from 7 different geographic sites to identify differentially expressed genes (DEGs) and gene networks. We identify 389 DEGs; the top DEG, FN1, was downregulated in cases (q = 3.26 × 10-9) and encodes fibronectin which plays a role in wound healing. The top three gene expression modules implicate networks related to immune response (CEACAM5; p = 9.62 × 10-16 and CPA3; p = 2.39 × 10-14) and wound healing (FN1; p = 7.63 × 10-9). Multi-omic analysis identifies FKBP5, a co-chaperone of glucocorticoid receptor signaling known to be involved in drug response in asthma, where the association between nasal epithelium gene expression is likely regulated by methylation and is associated with increased use of inhaled corticosteroids. This work reveals molecular dysregulation on three axes - increased Th2 inflammation, decreased capacity for wound healing, and impaired drug response - that may play a critical role in asthma within the African Diaspora.
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Affiliation(s)
- Brooke Szczesny
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Meher Preethi Boorgula
- Department of Medicine, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Sameer Chavan
- Department of Biomedical Informatics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Monica Campbell
- Department of Biomedical Informatics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Randi K Johnson
- Department of Epidemiology, Colorado School of Public Health, Aurora, CO, USA
- Quantitative Sciences Division, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kai Kammers
- Departments of Human Genetics, University of Chicago, Chicago, IL, USA
| | - Emma E Thompson
- Division of Allergy and Infectious Diseases, Dept of Medicine, University of Washington, Seattle, WA, USA
| | - Madison S Cox
- Division of Allergy and Infectious Diseases, Dept of Medicine, University of Washington, Seattle, WA, USA
| | - Gautam Shankar
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Corey Cox
- Department of Medicine, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Andréanne Morin
- Departments of Human Genetics, University of Chicago, Chicago, IL, USA
| | - Wendy Lorizio
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Michelle Daya
- Department of Medicine, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Samir N P Kelada
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
- Marsico Lung Institute, University of North Carolina, Chapel Hill, NC, USA
| | - Terri H Beaty
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Ayo P Doumatey
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Alvaro A Cruz
- Fundacao ProAR and Federal University of Bahia, Salvador, Bahia, Brazil
| | - Harold Watson
- Faculty of Medical Sciences, The University of the West Indies, Queen Elizabeth Hospital, St. Michael, Bridgetown, Barbados
| | | | - B Louise Giles
- Departments of Pediatrics, University of Chicago, Chicago, IL, USA
| | - Ganiyu A Arinola
- Department of Immunology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olumide Sogaolu
- Department of Medicine, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adegoke G Falade
- Department of Pediatrics, University of Ibadan, and University College Hospital, Ibadan, Nigeria
| | - Nadia N Hansel
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Ivana V Yang
- Departments of Biomedical Informatics and Medicine, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | | | - Charles N Rotimi
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - R Clive Landis
- Edmund Cohen Laboratory for Vascular Research, George Alleyne Chronic Disease Research Centre, Caribbean Institute for Health Research, The University of the West Indies, Cave Hill Campus, Wanstead, Barbados
| | - Camila A Figueiredo
- Federal University of Bahia and Funda. Program for Control of Asthma in Bahia (ProAR), Salvador, Brazil
- Instituto de Ciências de Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Matthew C Altman
- Systems Immunology Program, Benaroya Research Institute, Seattle, WA, 98101, USA
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Eimear Kenny
- Center for Genomic Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ingo Ruczinski
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Andrew H Liu
- Department of Pediatrics, Childrens Hospital Colorado and University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Carole Ober
- Departments of Human Genetics, University of Chicago, Chicago, IL, USA
| | - Margaret A Taub
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kathleen C Barnes
- Department of Medicine, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
| | - Rasika A Mathias
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA.
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An J, Jeong S, Park K, Jin H, Park J, Shin E, Lee JH, Song WJ, Kwon HS, Cho YS, Lee JE, Won S, Kim TB. Blood transcriptome differentiates clinical clusters for asthma. World Allergy Organ J 2024; 17:100871. [PMID: 38317769 PMCID: PMC10839776 DOI: 10.1016/j.waojou.2024.100871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 01/04/2024] [Accepted: 01/11/2024] [Indexed: 02/07/2024] Open
Abstract
Background In previous studies, several asthma phenotypes were identified using clinical and demographic parameters. Transcriptional phenotypes were mainly identified using sputum and bronchial cells. Objective We aimed to investigate asthma phenotypes via clustering analysis using clinical variables and compare the transcription levels among clusters using gene expression profiling of the blood. Methods Clustering analysis was performed using 6 parameters: age of asthma onset, body mass index, pack-years of smoking, forced expiratory volume in 1 s (FEV1), FEV1/forced vital capacity, and blood eosinophil counts. Peripheral blood mononuclear cells (PBMCs) were isolated from whole blood samples and RNA was extracted from selected PBMCs. Transcriptional profiles were generated (Illumina NovaSeq 6000) and analyzed using the reference genome and gene annotation files (hg19.refGene.gft). Pathway enrichment analysis was conducted using GO, KEGG, and REACTOME databases. Results In total, 355 patients with asthma were included in the analysis, of whom 72 (20.3%) had severe asthma. Clustering of the 6 parameters revealed 4 distinct subtypes. Cluster 1 (n = 63) had lower predicted FEV1 % and higher pack-years of smoking and neutrophils in sputum. Cluster 2 (n = 43) had a higher proportion and number of eosinophils in sputum and blood, and severe airflow limitation. Cluster 3 (n = 110) consisted of younger subjects with atopic features. Cluster 4 (n = 139) included features of late-onset mild asthma. Differentially expressed genes between clusters 1 and 2 were related to inflammatory responses and cell activation. Th17 cell differentiation and interferon gamma-mediated signaling pathways were related to neutrophilic inflammation in asthma. Conclusion Four clinical clusters were differentiated based on clinical parameters and blood eosinophils in adult patients with asthma form the Cohort for Reality and Evolution of Adult Asthma in Korea (COREA) cohort. Gene expression profiling and molecular pathways are novel means of classifying asthma phenotypes.
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Affiliation(s)
- Jin An
- Department of Pulmonary, Allergy and Critical Care Medicine, College of Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee University, Seoul, South Korea
| | - Seungpil Jeong
- Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, South Korea
| | - Kyungtaek Park
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - Heejin Jin
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - Jaehyun Park
- Interdisciplinary Program of Bioinformatics, Seoul National University, Seoul, South Korea
| | | | - Ji-Hyang Lee
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Woo-Jung Song
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Hyouk-Soo Kwon
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - You Sook Cho
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | | | - Sungho Won
- Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, South Korea
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
- Interdisciplinary Program of Bioinformatics, College of Natural Science, Seoul National University, Seoul, South Korea
| | - Tae-Bum Kim
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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Ahmed DW, Eiken MK, DePalma SJ, Helms AS, Zemans RL, Spence JR, Baker BM, Loebel C. Integrating mechanical cues with engineered platforms to explore cardiopulmonary development and disease. iScience 2023; 26:108472. [PMID: 38077130 PMCID: PMC10698280 DOI: 10.1016/j.isci.2023.108472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024] Open
Abstract
Mechanical forces provide critical biological signals to cells during healthy and aberrant organ development as well as during disease processes in adults. Within the cardiopulmonary system, mechanical forces, such as shear, compressive, and tensile forces, act across various length scales, and dysregulated forces are often a leading cause of disease initiation and progression such as in bronchopulmonary dysplasia and cardiomyopathies. Engineered in vitro models have supported studies of mechanical forces in a number of tissue and disease-specific contexts, thus enabling new mechanistic insights into cardiopulmonary development and disease. This review first provides fundamental examples where mechanical forces operate at multiple length scales to ensure precise lung and heart function. Next, we survey recent engineering platforms and tools that have provided new means to probe and modulate mechanical forces across in vitro and in vivo settings. Finally, the potential for interdisciplinary collaborations to inform novel therapeutic approaches for a number of cardiopulmonary diseases are discussed.
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Affiliation(s)
- Donia W. Ahmed
- Department of Biomedical Engineering, University of Michigan, Lurie Biomedical Engineering Building, 1101 Beal Avenue, Ann Arbor, MI 48109, USA
| | - Madeline K. Eiken
- Department of Biomedical Engineering, University of Michigan, Lurie Biomedical Engineering Building, 1101 Beal Avenue, Ann Arbor, MI 48109, USA
| | - Samuel J. DePalma
- Department of Biomedical Engineering, University of Michigan, Lurie Biomedical Engineering Building, 1101 Beal Avenue, Ann Arbor, MI 48109, USA
| | - Adam S. Helms
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Rachel L. Zemans
- Department of Internal Medicine, Division of Pulmonary Sciences and Critical Care Medicine – Gastroenterology, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA
| | - Jason R. Spence
- Department of Internal Medicine – Gastroenterology, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA
| | - Brendon M. Baker
- Department of Biomedical Engineering, University of Michigan, Lurie Biomedical Engineering Building, 1101 Beal Avenue, Ann Arbor, MI 48109, USA
| | - Claudia Loebel
- Department of Biomedical Engineering, University of Michigan, Lurie Biomedical Engineering Building, 1101 Beal Avenue, Ann Arbor, MI 48109, USA
- Department of Materials Science & Engineering, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
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Zeng X, Qing J, Li CM, Lu J, Yamawaki T, Hsu YH, Vander Lugt B, Hsu H, Busby J, McDowell PJ, Jackson DJ, Djukanovic R, Matthews JG, Arron JR, Bradding P, Brightling CE, Chaudhuri R, Choy DF, Cowan D, Fowler SJ, Hardman TC, Harrison T, Howarth P, Lordan J, Mansur AH, Menzies-Gow A, Pavord ID, Walker S, Woodcock A, Heaney LG. Blood transcriptomic signature in type-2 biomarker-low severe asthma and asthma control. J Allergy Clin Immunol 2023; 152:876-886. [PMID: 37315813 DOI: 10.1016/j.jaci.2023.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 05/02/2023] [Accepted: 05/09/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND Patients with type-2 (T2) cytokine-low severe asthma often have persistent symptoms despite suppression of T2 inflammation with corticosteroids. OBJECTIVES We sought to analyze whole blood transcriptome from 738 samples in T2-biomarker-high/-low patients with severe asthma to relate transcriptomic signatures to T2 biomarkers and asthma symptom scores. METHODS Bulk RNA-seq data were generated for blood samples (baseline, week 24, week 48) from 301 participants recruited to a randomized clinical trial of corticosteroid optimization in severe asthma. Unsupervised clustering, differential gene expression analysis, and pathway analysis were performed. Patients were grouped by T2-biomarker status and symptoms. Associations between clinical characteristics and differentially expressed genes (DEGs) associated with biomarker and symptom levels were investigated. RESULTS Unsupervised clustering identified 2 clusters; cluster 2 patients were blood eosinophil-low/symptom-high and more likely to be receiving oral corticosteroids (OCSs). Differential gene expression analysis of these clusters, with and without stratification for OCSs, identified 2960 and 4162 DEGs, respectively. Six hundred twenty-seven of 2960 genes remained after adjusting for OCSs by subtracting OCS signature genes. Pathway analysis identified dolichyl-diphosphooligosaccharide biosynthesis and assembly of RNA polymerase I complex as significantly enriched pathways. No stable DEGs were associated with high symptoms in T2-biomarker-low patients, but numerous associated with elevated T2 biomarkers, including 15 that were upregulated at all time points irrespective of symptom level. CONCLUSIONS OCSs have a considerable effect on whole blood transcriptome. Differential gene expression analysis demonstrates a clear T2-biomarker transcriptomic signature, but no signature was found in association with T2-biomarker-low patients, including those with a high symptom burden.
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Affiliation(s)
- Xue Zeng
- Amgen Research, Amgen, Inc, South San Francisco, Calif
| | - Jing Qing
- Amgen Research, Amgen, Inc, South San Francisco, Calif
| | - Chi-Ming Li
- Amgen Research, Amgen, Inc, South San Francisco, Calif
| | - Jiamiao Lu
- Amgen Research, Amgen, Inc, South San Francisco, Calif
| | | | | | | | - Hailing Hsu
- Amgen Research, Amgen, Inc, Thousand Oaks, Calif
| | - John Busby
- Wellcome-Wolfson Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, United Kingdom
| | - P J McDowell
- Wellcome-Wolfson Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, United Kingdom
| | - David J Jackson
- Guy's & St Thomas' NHS Trust and Department of Asthma, Allergy & Lung Biology, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | - Ratko Djukanovic
- School of Clinical and Experimental Sciences, University of Southampton, NIHR Southampton Biomedical Research Centre, Southampton, United Kingdom
| | | | | | - Peter Bradding
- Department of Respiratory Sciences, Institute for Lung Health and Leicester NIHR Biomedical Research Centre, University of Leicester, Leicester, United Kingdom
| | - Christopher E Brightling
- Department of Respiratory Sciences, Institute for Lung Health and Leicester NIHR Biomedical Research Centre, University of Leicester, Leicester, United Kingdom
| | - Rekha Chaudhuri
- Gartnavel General Hospital, Glasgow, and University of Glasgow, Glasgow, United Kingdom
| | | | - D Cowan
- NHS Greater Glasgow and Clyde, Stobhill Hospital, Glasgow, United Kingdom
| | - S J Fowler
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, United Kingdom; Manchester Academic Health Science Centre and NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, United Kingdom
| | | | - Tim Harrison
- Nottingham Respiratory NIHR Biomedical Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Peter Howarth
- School of Clinical and Experimental Sciences, University of Southampton, NIHR Southampton Biomedical Research Centre, Southampton, United Kingdom
| | - James Lordan
- The Newcastle upon Tyne NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - A H Mansur
- University of Birmingham and Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | | | - Ian D Pavord
- Oxford Respiratory NIHR BRC, Nuffield Department of Medicine, The University of Oxford, Oxford, United Kingdom
| | - Samantha Walker
- Asthma UK & British Lung Foundation Partnership, London, United Kingdom
| | - Ashley Woodcock
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, United Kingdom; Manchester Academic Health Science Centre and NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, United Kingdom
| | - Liam G Heaney
- Wellcome-Wolfson Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, United Kingdom.
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Li J, Zheng Z, Liu Y, Zhang H, Zhang Y, Gao J. IRAK-M has effects in regulation of lung epithelial inflammation. Respir Res 2023; 24:103. [PMID: 37029363 PMCID: PMC10082527 DOI: 10.1186/s12931-023-02406-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 03/22/2023] [Indexed: 04/09/2023] Open
Abstract
BACKGROUND Epithelial barrier is important for asthma development by shaping immune responses. Airway expressing-IL-1 receptor-associated kinase (IRAK)-M of Toll-like receptor pathway was involved in immunoregulation of airway inflammation through influencing activities of macrophages and dendritic cells or T cell differentiation. Whether IRAK-M has effect on cellular immunity in airway epithelial cells upon stimulation remains unclear. METHODS We modeled cellular inflammation induced by IL-1β, TNF-α, IL-33, and house dust mite (HDM) in BEAS-2B and A549 cells. Cytokine production and pathway activation were used to reflect the effects of IRAK-M siRNA knockdown on epithelial immunity. Genotyping an asthma-susceptible IRAK-M SNP rs1624395 and measurement of serum CXCL10 levels were performed in asthma patients. RESULTS IRAK-M expression was significantly induced in BEAS-2B and A549 cells after inflammatory stimulation. IRAK-M knockdown increased the lung epithelial production of cytokines and chemokines, including IL-6, IL-8, CXCL10, and CXCL11, at both mRNA and protein levels. Upon stimulation, IRAK-M silencing led to overactivation of JNK and p38 MAPK in lung epithelial cells. While antagonizing JNK or p38 MAPK inhibited increased secretion of CXCL10 in IRAK-M silenced-lung epithelium. Asthma patients carrying G/G genotypes had significantly higher levels of serum CXCL10 than those carrying homozygote A/A. CONCLUSION Our findings suggested that IRAK-M has effect on lung epithelial inflammation with an influence on epithelial secretion of CXCL10 partly mediated through JNK and p38 MAPK pathways. IRAK-M modulation might indicate a new insight into asthma pathogenesis from disease origin.
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Affiliation(s)
- Jia Li
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, #1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Zhoude Zheng
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, #1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Yi Liu
- Department of Respiratory Medicine, Civil Aviation General Hospital, Beijing, 100123, China
| | - Hongbing Zhang
- Department of Physiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Youming Zhang
- Section of Genomic and Environmental Medicine National Heart and Lung Institute, Imperial College London, London, SW3 6LY, UK
| | - Jinming Gao
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, #1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
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Recto KA, Huan T, Lee DH, Lee GY, Gereige J, Yao C, Hwang SJ, Joehanes R, Kelly RS, Lasky-Su J, O’Connor G, Levy D. Transcriptome-wide association study of circulating IgE levels identifies novel targets for asthma and allergic diseases. Front Immunol 2023; 14:1080071. [PMID: 36793728 PMCID: PMC9922991 DOI: 10.3389/fimmu.2023.1080071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/13/2023] [Indexed: 01/31/2023] Open
Abstract
Measurement of circulating immunoglobulin E (IgE) concentration is helpful for diagnosing and treating asthma and allergic diseases. Identifying gene expression signatures associated with IgE might elucidate novel pathways for IgE regulation. To this end, we performed a discovery transcriptome-wide association study to identify differentially expressed genes associated with circulating IgE levels in whole-blood derived RNA from 5,345 participants in the Framingham Heart Study across 17,873 mRNA gene-level transcripts. We identified 216 significant transcripts at a false discovery rate <0.05. We conducted replication using the meta-analysis of two independent external studies: the Childhood Asthma Management Program (n=610) and the Genetic Epidemiology of Asthma in Costa Rica Study (n=326); we then reversed the discovery and replication cohorts, which revealed 59 significant genes that replicated in both directions. Gene ontology analysis revealed that many of these genes were implicated in immune function pathways, including defense response, inflammatory response, and cytokine production. Mendelian randomization (MR) analysis revealed four genes (CLC, CCDC21, S100A13, and GCNT1) as putatively causal (p<0.05) regulators of IgE levels. GCNT1 (beta=1.5, p=0.01)-which is a top result in the MR analysis of expression in relation to asthma and allergic diseases-plays a role in regulating T helper type 1 cell homing, lymphocyte trafficking, and B cell differentiation. Our findings build upon prior knowledge of IgE regulation and provide a deeper understanding of underlying molecular mechanisms. The IgE-associated genes that we identified-particularly those implicated in MR analysis-can be explored as promising therapeutic targets for asthma and IgE-related diseases.
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Affiliation(s)
- Kathryn A. Recto
- The Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
- The Framingham Heart Study, Framingham, MA, United States
| | - Tianxiao Huan
- The Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
- The Framingham Heart Study, Framingham, MA, United States
| | - Dong Heon Lee
- The Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
- The Framingham Heart Study, Framingham, MA, United States
| | - Gha Young Lee
- The Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
- The Framingham Heart Study, Framingham, MA, United States
| | - Jessica Gereige
- Pulmonary Center, Boston University School of Medicine, Boston, MA, United States
| | - Chen Yao
- The Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
- The Framingham Heart Study, Framingham, MA, United States
| | - Shih-Jen Hwang
- The Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
- The Framingham Heart Study, Framingham, MA, United States
| | - Roby Joehanes
- The Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
- The Framingham Heart Study, Framingham, MA, United States
| | - Rachel S. Kelly
- Brigham and Women’s Hospital, Channing Division of Network Medicine, Boston, MA, United States
| | - Jessica Lasky-Su
- Brigham and Women’s Hospital, Channing Division of Network Medicine, Boston, MA, United States
| | - George O’Connor
- Pulmonary Center, Boston University School of Medicine, Boston, MA, United States
| | - Daniel Levy
- The Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
- The Framingham Heart Study, Framingham, MA, United States
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Boateng E, Kovacevic D, Oldenburg V, Rådinger M, Krauss-Etschmann S. Role of airway epithelial cell miRNAs in asthma. FRONTIERS IN ALLERGY 2022; 3:962693. [PMID: 36203653 PMCID: PMC9530201 DOI: 10.3389/falgy.2022.962693] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 09/01/2022] [Indexed: 12/07/2022] Open
Abstract
The airway epithelial cells and overlying layer of mucus are the first point of contact for particles entering the lung. The severity of environmental contributions to pulmonary disease initiation, progression, and exacerbation is largely determined by engagement with the airway epithelium. Despite the cellular cross-talk and cargo exchange in the microenvironment, epithelial cells produce miRNAs associated with the regulation of airway features in asthma. In line with this, there is evidence indicating miRNA alterations related to their multifunctional regulation of asthma features in the conducting airways. In this review, we discuss the cellular components and functions of the airway epithelium in asthma, miRNAs derived from epithelial cells in disease pathogenesis, and the cellular exchange of miRNA-bearing cargo in the airways.
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Affiliation(s)
- Eistine Boateng
- Early Life Origins of Chronic Lung Disease, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
- Correspondence: Eistine Boateng
| | - Draginja Kovacevic
- DZL Laboratory for Experimental Microbiome Research, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
| | - Vladimira Oldenburg
- Early Life Origins of Chronic Lung Disease, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
| | - Madeleine Rådinger
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Susanne Krauss-Etschmann
- Early Life Origins of Chronic Lung Disease, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
- DZL Laboratory for Experimental Microbiome Research, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
- Institute for Experimental Medicine, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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8
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Vernet R, Matran R, Zerimech F, Madore AM, Lavoie ME, Gagnon PA, Mohamdi H, Margaritte-Jeannin P, Siroux V, Dizier MH, Demenais F, Laprise C, Nadif R, Bouzigon E. Identification of novel genes influencing eosinophil-specific protein levels in asthma families. J Allergy Clin Immunol 2022; 150:1168-1177. [PMID: 35671886 DOI: 10.1016/j.jaci.2022.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Eosinophils play a key role in the asthma allergic response by releasing cytotoxic molecules such as eosinophil cationic protein (ECP) and eosinophil-derived neurotoxin (EDN) that generate epithelium damages. OBJECTIVE To identify genetic variants influencing ECP and EDN levels in asthma-ascertained families. METHODS We performed univariate and bivariate genome-wide association analyses of ECP and EDN levels in 1,018 subjects from EGEA study with follow-up in 153 subjects from SLSJ study and combined the results of these two studies through meta-analysis. We then conducted Bayesian statistical fine-mapping together with quantitative trait locus and functional annotation analyses to identify the most likely functional genetic variants and candidate genes. RESULTS We identified five genome-wide significant loci (P<5x10-8) including seven distinct signals associated with ECP and/or EDN levels. The genes targeted by our fine-mapping and functional search include RNASE2 and RNASE3 (14q11) which encode EDN and ECP respectively and four other genes which regulate ECP/EDN levels. These four genes were the following: JAK1 (1p31) a transcription factor with a key role in the immune response and a potential therapeutic target for eosinophilic asthma, ARHGAP25 (2p13) involved in leukocyte recruitment to inflammatory sites, NDUFA4 (7p21) encoding a component of the mitochondrial respiratory chain and involved in cellular response to stress and CTSL (9q22) involved in immune response, extra-cellular remodeling and allergic inflammation. CONCLUSION This study demonstrates that the analysis of specific phenotypes produced by eosinophils allows identifying genes with a major role in allergic response and inflammation and offering potential therapeutic targets for asthma.
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Affiliation(s)
- Raphaël Vernet
- Université Paris Cité, INSERM, UMR 1124, Group of Genomic Epidemiology and Multifactorial Diseases, Paris, France
| | - Régis Matran
- Université Lille, CHU Lille, Institut Pasteur de Lille, ULR 4483, F-59000 Lille, France
| | - Farid Zerimech
- Université Lille, CHU Lille, Institut Pasteur de Lille, EA 4483 - IMPECS, F-59000 Lille, France
| | - Anne-Marie Madore
- Basic Sciences department, Université du Québec à Chicoutimi, Saguenay, Québec, Canada, Centre intersectoriel en santé durable, Université du Québec à Chicoutimi, Saguenay, Québec, Canada
| | - Marie-Eve Lavoie
- Basic Sciences department, Université du Québec à Chicoutimi, Saguenay, Québec, Canada, Centre intersectoriel en santé durable, Université du Québec à Chicoutimi, Saguenay, Québec, Canada
| | - Pierre-Alexandre Gagnon
- Basic Sciences department, Université du Québec à Chicoutimi, Saguenay, Québec, Canada, Centre intersectoriel en santé durable, Université du Québec à Chicoutimi, Saguenay, Québec, Canada
| | - Hamida Mohamdi
- Université Paris Cité, INSERM, UMR 1124, Group of Genomic Epidemiology and Multifactorial Diseases, Paris, France
| | - Patricia Margaritte-Jeannin
- Université Paris Cité, INSERM, UMR 1124, Group of Genomic Epidemiology and Multifactorial Diseases, Paris, France
| | - Valérie Siroux
- Inserm, Université Grenoble Alpes, CNRS, IAB, Team of Environmental Epidemiology Applied to the Development and Respiratory Health, Grenoble, France
| | - Marie-Hélène Dizier
- Université Paris Cité, INSERM, UMR 1124, Group of Genomic Epidemiology and Multifactorial Diseases, Paris, France
| | - Florence Demenais
- Université Paris Cité, INSERM, UMR 1124, Group of Genomic Epidemiology and Multifactorial Diseases, Paris, France
| | - Catherine Laprise
- Basic Sciences department, Université du Québec à Chicoutimi, Saguenay, Québec, Canada, Centre intersectoriel en santé durable, Université du Québec à Chicoutimi, Saguenay, Québec, Canada
| | - Rachel Nadif
- Université Paris-Saclay, UVSQ, Univ. Paris-Sud, Inserm, Equipe d'Epidémiologie Respiratoire Intégrative, CESP, 94807, Villejuif, France
| | - Emmanuelle Bouzigon
- Université Paris Cité, INSERM, UMR 1124, Group of Genomic Epidemiology and Multifactorial Diseases, Paris, France.
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9
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Lin Q, Ni H, Zheng Z, Zhong J, Nie H. Cross-talk of four types of RNA modification writers defines the immune microenvironment in severe asthma. Ann N Y Acad Sci 2022; 1514:93-103. [PMID: 35506887 DOI: 10.1111/nyas.14782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Adenine modifications, including m6 A, m1 A, APA, and A-to-I modifications, are the most impactful RNA modifications. These modifications are primarily produced by enzymes called writers. The main purpose of this study was to explore the cross-talk and potential roles of these writers in severe asthma. We found 13 RNA writers potentially related to severe asthma and three RNA modification patterns. Cluster 3 showed predominant neutrophil infiltration and C-type lectin receptor signaling; cluster 1 showed predominant innate immune cell infiltration and ubiquitin-proteasome system activation; and cluster 2 did not show obvious immune infiltration characteristics. We found that RNA modification writers modified immune cell-related genes and led to both accumulation of different immune cells in the airways and activation of a series of biological processes, which ultimately leads to severe asthma. TRMT6, WTAP, and TRMT6A were included in a random forest model as predictors. Cromoglicic acid, thioperamide, and fluvastatin were potential drugs for clusters 1, 2, and 3, respectively. We found that cross-talk of RNA modifications is significant in severe asthma, which provides insight into severe asthma pathogenesis and possible treatment avenues.
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Affiliation(s)
- Qibin Lin
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Haiyang Ni
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhishui Zheng
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jieying Zhong
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hanxiang Nie
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
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10
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Gautam Y, Johansson E, Mersha TB. Multi-Omics Profiling Approach to Asthma: An Evolving Paradigm. J Pers Med 2022; 12:jpm12010066. [PMID: 35055381 PMCID: PMC8778153 DOI: 10.3390/jpm12010066] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/23/2021] [Accepted: 12/28/2021] [Indexed: 02/04/2023] Open
Abstract
Asthma is a complex multifactorial and heterogeneous respiratory disease. Although genetics is a strong risk factor of asthma, external and internal exposures and their interactions with genetic factors also play important roles in the pathophysiology of asthma. Over the past decades, the application of high-throughput omics approaches has emerged and been applied to the field of asthma research for screening biomarkers such as genes, transcript, proteins, and metabolites in an unbiased fashion. Leveraging large-scale studies representative of diverse population-based omics data and integrating with clinical data has led to better profiling of asthma risk. Yet, to date, no omic-driven endotypes have been translated into clinical practice and management of asthma. In this article, we provide an overview of the current status of omics studies of asthma, namely, genomics, transcriptomics, epigenomics, proteomics, exposomics, and metabolomics. The current development of the multi-omics integrations of asthma is also briefly discussed. Biomarker discovery following multi-omics profiling could be challenging but useful for better disease phenotyping and endotyping that can translate into advances in asthma management and clinical care, ultimately leading to successful precision medicine approaches.
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11
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Repetitive aeroallergen challenges elucidate maladaptive epithelial and inflammatory traits that underpin allergic airway diseases. J Allergy Clin Immunol 2021; 148:533-549. [PMID: 33493557 PMCID: PMC8298629 DOI: 10.1016/j.jaci.2021.01.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/08/2021] [Accepted: 01/14/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND Signifying the 2-compartments/1-disease paradigm, allergic rhinoconjunctivitis (ARC) and asthma (AA) are prevalent, comorbid conditions triggered by environmental factors (eg, house dust mites [HDMs]). However, despite the ubiquity of triggers, progression to severe ARC/AA is infrequent, suggesting either resilience or adaptation. OBJECTIVE We sought to determine whether ARC/AA severity relates to maladaptive responses to disease triggers. METHODS Adults with HDM-associated ARC were challenged repetitively with HDMs in an aeroallergen challenge chamber. Mechanistic traits associated with disease severity were identified. RESULTS HDM challenges evoked maladaptive (persistently higher ARC symptoms), adaptive (progressive symptom reduction), and resilient (resistance to symptom induction) phenotypes. Symptom severity in the natural environment was an imprecise correlate of the phenotypes. Nasal airway traits, defined by low inflammation-effectual epithelial integrity, moderate inflammation-effectual epithelial integrity, and higher inflammation-ineffectual epithelial integrity, were hallmarks of the resilient, adaptive, and maladaptive evoked phenotypes, respectively. Highlighting a crosstalk mechanism, peripheral blood inflammatory tone calibrated these traits: ineffectual epithelial integrity associated with CD8+ T cells, whereas airway inflammation associated with both CD8+ T cells and eosinophils. Hallmark peripheral blood maladaptive traits were increased natural killer and CD8+ T cells, lower CD4+ mucosal-associated invariant T cells, and deficiencies along the TLR-IRF-IFN antiviral pathway. Maladaptive traits tracking HDM-associated ARC also contributed to AA risk and severity models. CONCLUSIONS Repetitive challenges with HDMs revealed that maladaptation to disease triggers may underpin ARC/AA disease severity. A combinatorial therapeutic approach may involve reversal of loss-of-beneficial-function traits (ineffectual epithelial integrity, TLR-IRF-IFN deficiencies), mitigation of gain-of-adverse-function traits (inflammation), and blocking of a detrimental crosstalk between the peripheral blood and airway compartments.
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12
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Magnaye KM, Naughton KA, Huffman J, Hogarth DK, Naureckas ET, White SR, Ober C. A-to-I editing of miR-200b-3p in airway cells is associated with moderate-to-severe asthma. Eur Respir J 2021; 58:13993003.03862-2020. [PMID: 33446603 DOI: 10.1183/13993003.03862-2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/19/2020] [Indexed: 11/05/2022]
Abstract
BACKGROUND Asthma is a chronic lung disease characterised by persistent airway inflammation. Altered microRNA (miRNA)-mediated gene silencing in bronchial epithelial cells (BECs) has been reported in asthma, yet adenosine deaminase acting on RNA (ADAR)-mediated miRNA editing in asthma remains unexplored. METHODS We first identified adenosine to inosine (A-to-I) edited sites in miRNAs in BECs from 142 adult asthma cases and controls. A-to-I edited sites were tested for associations with asthma severity and clinical measures of asthma. Paired RNA sequencing data were used to perform pathway enrichments and test for associations with bioinformatically predicted target genes of the unedited and edited miRNAs. RESULTS Of 19 A-to-I edited sites detected in these miRNAs, one site at position 5 of miR-200b-3p was edited less frequently in cases compared with controls (pcorrected=0.013), and especially compared with cases with moderate (pcorrected=0.029) and severe (pcorrected=3.9×10-4), but not mild (pcorrected=0.38), asthma. Bioinformatic prediction revealed 232 target genes of the edited miR-200b-3p, which were enriched for both interleukin-4 and interferon-γ signalling pathways, and included the SOCS1 (suppressor of cytokine signalling 1) gene. SOCS1 was more highly expressed in moderate (pcorrected=0.017) and severe (pcorrected=5.4×10-3) asthma cases compared with controls. Moreover, both miR-200b-3p editing and SOCS1 were associated with bronchoalveolar lavage eosinophil levels. CONCLUSIONS Reduced A-to-I editing of position 5 of miR-200b-3p in lower airway cells from moderate-to-severe asthmatic subjects may lead to overexpression of SOCS1 and impaired cytokine signalling. We propose ADAR-mediated editing as an epigenetic mechanism contributing to features of moderate-to-severe asthma in adulthood.
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Affiliation(s)
- Kevin M Magnaye
- Dept of Human Genetics, University of Chicago, Chicago, IL, USA.,These two authors contributed equally to this article as lead authors and supervised the work
| | | | - Janel Huffman
- Dept of Human Genetics, University of Chicago, Chicago, IL, USA
| | - D Kyle Hogarth
- Dept of Medicine, University of Chicago, Chicago, IL, USA
| | | | - Steven R White
- Dept of Medicine, University of Chicago, Chicago, IL, USA
| | - Carole Ober
- Dept of Human Genetics, University of Chicago, Chicago, IL, USA .,These two authors contributed equally to this article as lead authors and supervised the work
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13
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Banerjee P, Balraj P, Ambhore NS, Wicher SA, Britt RD, Pabelick CM, Prakash YS, Sathish V. Network and co-expression analysis of airway smooth muscle cell transcriptome delineates potential gene signatures in asthma. Sci Rep 2021; 11:14386. [PMID: 34257337 PMCID: PMC8277837 DOI: 10.1038/s41598-021-93845-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/28/2021] [Indexed: 02/06/2023] Open
Abstract
Airway smooth muscle (ASM) is known for its role in asthma exacerbations characterized by acute bronchoconstriction and remodeling. The molecular mechanisms underlying multiple gene interactions regulating gene expression in asthma remain elusive. Herein, we explored the regulatory relationship between ASM genes to uncover the putative mechanism underlying asthma in humans. To this end, the gene expression from human ASM was measured with RNA-Seq in non-asthmatic and asthmatic groups. The gene network for the asthmatic and non-asthmatic group was constructed by prioritizing differentially expressed genes (DEGs) (121) and transcription factors (TFs) (116). Furthermore, we identified differentially connected or co-expressed genes in each group. The asthmatic group showed a loss of gene connectivity due to the rewiring of major regulators. Notably, TFs such as ZNF792, SMAD1, and SMAD7 were differentially correlated in the asthmatic ASM. Additionally, the DEGs, TFs, and differentially connected genes over-represented in the pathways involved with herpes simplex virus infection, Hippo and TGF-β signaling, adherens junctions, gap junctions, and ferroptosis. The rewiring of major regulators unveiled in this study likely modulates the expression of gene-targets as an adaptive response to asthma. These multiple gene interactions pointed out novel targets and pathways for asthma exacerbations.
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Affiliation(s)
- Priyanka Banerjee
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, USA
| | - Premanand Balraj
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, USA
| | | | - Sarah A Wicher
- Department of Anesthesiology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Rodney D Britt
- Center for Perinatal Research, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
- Department of Pediatrics, The Ohio State University, Columbus, OH, USA
| | - Christina M Pabelick
- Department of Anesthesiology, Mayo Clinic College of Medicine, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Y S Prakash
- Department of Anesthesiology, Mayo Clinic College of Medicine, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Venkatachalem Sathish
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, USA.
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Sudro 108A, Fargo, ND, 58108-6050, USA.
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14
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Gill AS, Pulsipher A, Sumsion JS, Oakley GM, Leclair LW, Howe H, Orlandi RR, Alt JA. Transcriptional Changes in Chronic Rhinosinusitis with Asthma Favor a Type 2 Molecular Endotype Independent of Polyp Status. J Asthma Allergy 2021; 14:405-413. [PMID: 33911879 PMCID: PMC8071779 DOI: 10.2147/jaa.s301825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 03/16/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Data regarding the inflammatory profile of patients with asthma and chronic rhinosinusitis (CRS-A) with (CRSwNP-A) and without (CRSsNP-A) nasal polyposis remain limited. OBJECTIVE Define and compare systemic transcriptional changes in patients with CRS-A to those with non-asthma-related CRS with (CRSwNP) and without nasal polyposis (CRSsNP). METHODS Thirty-four patients with CRS-A (n=19) and CRS (n=15) were prospectively enrolled into an observational study. Demographic information and subjective and objective disease severity measures were recorded. Multiplex gene expression analysis of mRNA extracted from peripheral blood was performed. A total of 594 genes associated with innate/adaptive immunity were analyzed using NanoString technology. Gene expression ratios were reported for genes that were differentially expressed among these cohorts. Linear regression analysis was used to compare the mRNA transcript copy numbers for each gene with disease severity. RESULTS There was no significant difference in age, gender, nasal polyposis, or health-related quality of life measures between the two groups (p>0.05). HLA class II histocompatibility antigen, DRB3-1 beta chain (HLA-DRB3) was significantly upregulated in the peripheral blood of patients with CRSsNP-A compared to CRSsNP, whereas chemokine (C-C motif) ligands 4 (CCL4) and zinc finger protein helios (IKZF2) were significantly upregulated in CRSwNP-A compared to CRSwNP (p<0.05). CONCLUSION Patients with CRSsNP-A demonstrate a molecular endotype associated with a Th2-dominant inflammatory profile compared to CRSsNP. Patients with CRSwNP-A similarly demonstrate an overrepresentation of genes associated with Th2-driven inflammation compared to patients with CRSwNP.
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Affiliation(s)
- Amarbir S Gill
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | - Abigail Pulsipher
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | | | - Gretchen M Oakley
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | - Laurie W Leclair
- Department of Pulmonology/Critical Care Medicine, University of Utah, Salt Lake City, UT, USA
| | - Heather Howe
- Department of Pulmonology/Critical Care Medicine, University of Utah, Salt Lake City, UT, USA
| | - Richard R Orlandi
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | - Jeremiah A Alt
- Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, University of Utah, Salt Lake City, UT, USA
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15
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McErlean P, Kelly A, Dhariwal J, Kirtland M, Watson J, Ranz I, Smith J, Saxena A, Cousins DJ, Van Oosterhout A, Solari R, Edwards MR, Johnston SL, Lavender P. Profiling of H3K27Ac Reveals the Influence of Asthma on the Epigenome of the Airway Epithelium. Front Genet 2020; 11:585746. [PMID: 33362848 PMCID: PMC7758344 DOI: 10.3389/fgene.2020.585746] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 11/03/2020] [Indexed: 12/17/2022] Open
Abstract
Background Asthma is a chronic airway disease driven by complex genetic–environmental interactions. The role of epigenetic modifications in bronchial epithelial cells (BECs) in asthma is poorly understood. Methods We piloted genome-wide profiling of the enhancer-associated histone modification H3K27ac in BECs from people with asthma (n = 4) and healthy controls (n = 3). Results We identified n = 4,321 (FDR < 0.05) regions exhibiting differential H3K27ac enrichment between asthma and health, clustering at genes associated predominately with epithelial processes (EMT). We identified initial evidence of asthma-associated Super-Enhancers encompassing genes encoding transcription factors (TP63) and enzymes regulating lipid metabolism (PTGS1). We integrated published datasets to identify epithelium-specific transcription factors associated with H3K27ac in asthma (TP73) and identify initial relationships between asthma-associated changes in H3K27ac and transcriptional profiles. Finally, we investigated the potential of CRISPR-based approaches to functionally evaluate H3K27ac-asthma landscape in vitro by identifying guide-RNAs capable of targeting acetylation to asthma DERs and inducing gene expression (TLR3). Conclusion Our small pilot study validates genome-wide approaches for deciphering epigenetic mechanisms underlying asthma pathogenesis in the airways.
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Affiliation(s)
- Peter McErlean
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Audrey Kelly
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Jaideep Dhariwal
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,Airway Disease Infection Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Max Kirtland
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Julie Watson
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Ismael Ranz
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Janet Smith
- GlaxoSmithKline Allergic Inflammation Discovery Performance Unit, Respiratory Therapy Area, Stevenage, United Kingdom
| | - Alka Saxena
- Genomics Platform, Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - David J Cousins
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,National Institute for Health Research (NIHR) Respiratory Biomedical Research Unit, Department of Infection, Immunity & Inflammation, Leicester Institute for Lung Health, University of Leicester, Leicester, United Kingdom
| | - Antoon Van Oosterhout
- GlaxoSmithKline Allergic Inflammation Discovery Performance Unit, Respiratory Therapy Area, Stevenage, United Kingdom
| | - Roberto Solari
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,Airway Disease Infection Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Michael R Edwards
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,Airway Disease Infection Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Sebastian L Johnston
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,Airway Disease Infection Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Paul Lavender
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
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16
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Forno E, Zhang R, Jiang Y, Kim S, Yan Q, Ren Z, Han YY, Boutaoui N, Rosser F, Weeks DE, Acosta-Pérez E, Colón-Semidey A, Alvarez M, Canino G, Chen W, Celedón JC. Transcriptome-wide and differential expression network analyses of childhood asthma in nasal epithelium. J Allergy Clin Immunol 2020; 146:671-675. [PMID: 32088307 DOI: 10.1016/j.jaci.2020.02.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 02/04/2020] [Accepted: 02/12/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Erick Forno
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; University of Pittsburgh School of Medicine, Pittsburgh, Pa
| | - Rong Zhang
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; Department of Statistics, University of Pittsburgh, Pittsburgh, Pa
| | - Yale Jiang
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; School of Medicine, Tsinghua University, Beijing, China
| | - Soyeon Kim
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; University of Pittsburgh School of Medicine, Pittsburgh, Pa
| | - Qi Yan
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; University of Pittsburgh School of Medicine, Pittsburgh, Pa
| | - Zhao Ren
- Department of Statistics, University of Pittsburgh, Pittsburgh, Pa
| | - Yueh-Ying Han
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; University of Pittsburgh School of Medicine, Pittsburgh, Pa
| | - Nadia Boutaoui
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; University of Pittsburgh School of Medicine, Pittsburgh, Pa
| | - Franziska Rosser
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; University of Pittsburgh School of Medicine, Pittsburgh, Pa
| | - Daniel E Weeks
- Department of Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pa
| | - Edna Acosta-Pérez
- Behavioral Sciences Research Institute, Medical Science Campus, University of Puerto Rico, San Juan, Puerto Rico
| | - Angel Colón-Semidey
- Department of Pediatrics, Medical Science Campus, University of Puerto Rico, San Juan, Puerto Rico
| | - María Alvarez
- Department of Pediatrics, Medical Science Campus, University of Puerto Rico, San Juan, Puerto Rico
| | - Glorisa Canino
- Behavioral Sciences Research Institute, Medical Science Campus, University of Puerto Rico, San Juan, Puerto Rico
| | - Wei Chen
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; University of Pittsburgh School of Medicine, Pittsburgh, Pa
| | - Juan C Celedón
- Division of Pulmonary Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pa; University of Pittsburgh School of Medicine, Pittsburgh, Pa.
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17
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Park HW, Weiss ST. Understanding the Molecular Mechanisms of Asthma through Transcriptomics. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2020; 12:399-411. [PMID: 32141255 PMCID: PMC7061151 DOI: 10.4168/aair.2020.12.3.399] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/01/2020] [Accepted: 01/11/2020] [Indexed: 12/18/2022]
Abstract
The transcriptome represents the complete set of RNA transcripts that are produced by the genome under a specific circumstance or in a specific cell. High-throughput methods, including microarray and bulk RNA sequencing, as well as recent advances in biostatistics based on machine learning approaches provides a quick and effective way of identifying novel genes and pathways related to asthma, which is a heterogeneous disease with diverse pathophysiological mechanisms. In this manuscript, we briefly review how to analyze transcriptome data and then provide a summary of recent transcriptome studies focusing on asthma pathogenesis and asthma drug responses. Studies reviewed here are classified into 2 classes based on the tissues utilized: blood and airway cells.
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Affiliation(s)
- Heung Woo Park
- The Channing Division of Network Medicine, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Scott T Weiss
- The Channing Division of Network Medicine, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA.,Partners Center for Personalized Medicine, Partners Health Care, Boston, MA, USA.
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18
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Cooper DM, Loxham M. Particulate matter and the airway epithelium: the special case of the underground? Eur Respir Rev 2019; 28:28/153/190066. [PMID: 31554704 PMCID: PMC9488653 DOI: 10.1183/16000617.0066-2019] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 08/23/2019] [Indexed: 11/25/2022] Open
Abstract
Airborne particulate matter (PM) is a leading driver of premature mortality and cardiopulmonary morbidity, associated with exacerbations of asthma and chronic obstructive pulmonary disease, idiopathic pulmonary fibrosis, and lung cancer. The airway epithelium, as the principal site of PM deposition, is critical to the effects of, and initial response to, PM. A key mechanism by which PM exerts its effects is the generation of reactive oxygen species (ROS), inducing antioxidant and inflammatory responses in exposed epithelial cells. However, much of what is known about the effects of PM is based on research using particulates from urban air. PM from underground railways is compositionally highly distinct from urban PM, being rich in metals associated with wheel, rail and brake wear and electrical arcing and component wear, which endows underground PM with potent ROS-generating capacity. In addition, underground PM appears to be more inflammogenic than urban PM in epithelial cells, but there is a lack of research into effects on exposed individuals, especially those with underlying health conditions. This review summarises current knowledge about the effects of PM on the airway epithelium, how the effects of underground PM may be different to urban PM and the potential health consequences and mitigation strategies for commuters and workers in underground railways. Airborne particulate matter in underground railways is much more concentrated and metal-rich than that found above ground. The evidence surrounding what this might mean for effects on the airways of exposed commuters and staff is limited and inconsistent.http://bit.ly/2KtcorT
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Affiliation(s)
- Dawn M Cooper
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Matthew Loxham
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK .,NIHR Southampton Biomedical Research Centre, University Hospital Southampton, Southampton, UK.,Southampton Marine and Maritime Institute, University of Southampton, Southampton, UK.,Institute for Life Sciences, University of Southampton, Southampton, UK
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19
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Qin L, Gibson PG, Simpson JL, Baines KJ, McDonald VM, Wood LG, Powell H, Fricker M. Dysregulation of sputum columnar epithelial cells and products in distinct asthma phenotypes. Clin Exp Allergy 2019; 49:1418-1428. [PMID: 31264263 DOI: 10.1111/cea.13452] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/21/2019] [Accepted: 06/26/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Dysfunction of the bronchial epithelium plays an important role in asthma; however, its measurement is challenging. Columnar epithelial cells are often quantified, yet rarely analysed, in induced sputum studies. OBJECTIVE We aimed to test whether sputum columnar epithelial cell proportion and count are altered in asthma, and whether they are associated with clinical and inflammatory variables. We aimed to test whether sputum-based measures could provide a relatively non-invasive means through which to monitor airway epithelial activation status. METHODS We examined the relationship of sputum columnar epithelial cells with clinical and inflammatory variables of asthma in a large retrospective cross-sectional cohort (901 participants with asthma and 138 healthy controls). In further studies, we used flow cytometry, microarray, qPCR and ELISA to characterize sputum columnar epithelial cells and their products. RESULTS Multivariate analysis and generation of 90th centile cut-offs (≥11% or ≥18.1 × 104 /mL) to identify columnar epithelial cell "high" asthma revealed a significant relationship between elevated sputum columnar cells and male gender, severe asthma and non-neutrophilic airway inflammation. Flow cytometry showed viable columnar epithelial cells were present in all sputum samples tested. An epithelial gene signature (SCGB3A1, LDLRAD1, FOXJ1, DNALI1, CFAP157, CFAP53) was detected in columnar epithelial cell-high sputum. CLCA1 mRNA and periostin protein, previously identified biomarkers of IL-13-mediated epithelial activation, were elevated in columnar epithelial cell-high sputum samples, but only when accompanied by eosinophilia. CONCLUSIONS & CLINICAL RELEVANCE Sputum columnar epithelial cells are related to important clinical and inflammatory variables in asthma. Measurement of epithelial biomarkers in sputum samples could allow non-invasive assessment of altered bronchial epithelium status in asthma.
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Affiliation(s)
- Ling Qin
- Priority Research Centre for Healthy Lungs, The University of Newcastle, New Lambton Heights, NSW, Australia.,Department of Respiratory Medicine (Department of Pulmonary and Critical Care Medicine), Xiangya Hospital, Central South University, Changsha, China
| | - Peter G Gibson
- Priority Research Centre for Healthy Lungs, The University of Newcastle, New Lambton Heights, NSW, Australia.,National Health and Medical Research Council Centre of Excellence in Severe Asthma, Newcastle, NSW, Australia.,Hunter Medical Research Institute, Newcastle, NSW, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, NSW, Australia
| | - Jodie L Simpson
- Priority Research Centre for Healthy Lungs, The University of Newcastle, New Lambton Heights, NSW, Australia.,Hunter Medical Research Institute, Newcastle, NSW, Australia
| | - Katherine J Baines
- Priority Research Centre for Healthy Lungs, The University of Newcastle, New Lambton Heights, NSW, Australia.,Hunter Medical Research Institute, Newcastle, NSW, Australia
| | - Vanessa M McDonald
- Priority Research Centre for Healthy Lungs, The University of Newcastle, New Lambton Heights, NSW, Australia.,National Health and Medical Research Council Centre of Excellence in Severe Asthma, Newcastle, NSW, Australia.,Hunter Medical Research Institute, Newcastle, NSW, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, NSW, Australia
| | - Lisa G Wood
- Priority Research Centre for Healthy Lungs, The University of Newcastle, New Lambton Heights, NSW, Australia.,Hunter Medical Research Institute, Newcastle, NSW, Australia
| | - Heather Powell
- Priority Research Centre for Healthy Lungs, The University of Newcastle, New Lambton Heights, NSW, Australia.,Hunter Medical Research Institute, Newcastle, NSW, Australia
| | - Michael Fricker
- Priority Research Centre for Healthy Lungs, The University of Newcastle, New Lambton Heights, NSW, Australia.,National Health and Medical Research Council Centre of Excellence in Severe Asthma, Newcastle, NSW, Australia.,Hunter Medical Research Institute, Newcastle, NSW, Australia
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20
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Jiang Y, Gruzieva O, Wang T, Forno E, Boutaoui N, Sun T, Merid SK, Acosta-Pérez E, Kull I, Canino G, Antó JM, Bousquet J, Melén E, Chen W, Celedón JC. Transcriptomics of atopy and atopic asthma in white blood cells from children and adolescents. Eur Respir J 2019; 53:13993003.00102-2019. [PMID: 30923181 DOI: 10.1183/13993003.00102-2019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/02/2019] [Indexed: 02/07/2023]
Abstract
Early allergic sensitisation (atopy) is the first step in the development of allergic diseases such as atopic asthma later in life. Genes and pathways associated with atopy and atopic asthma in children and adolescents have not been well characterised.A transcriptome-wide association study (TWAS) of atopy and atopic asthma in white blood cells (WBCs) or whole blood was conducted in a cohort of 460 Puerto Ricans aged 9-20 years (EVA-PR study) and in a cohort of 250 Swedish adolescents (BAMSE study). Pathway enrichment and network analyses were conducted to further assess top findings, and classification models of atopy and atopic asthma were built using expression levels for the top differentially expressed genes (DEGs).In a meta-analysis of the study cohorts, both previously implicated genes (e.g. IL5RA and IL1RL1) and genes not previously reported in TWASs (novel) were significantly associated with atopy and/or atopic asthma. Top novel genes for atopy included SIGLEC8 (p=8.07×10-13), SLC29A1 (p=7.07×10-12) and SMPD3 (p=1.48×10-11). Expression quantitative trait locus analyses identified multiple asthma-relevant genotype-expression pairs, such as rs2255888/ALOX15 Pathway enrichment analysis uncovered 16 significantly enriched pathways at adjusted p<0.01, including those relevant to T-helper cell type 1 (Th1) and Th2 immune responses. Classification models built using the top DEGs and a few demographic/parental history variables accurately differentiated subjects with atopic asthma from nonatopic control subjects (area under the curve 0.84).We have identified genes and pathways for atopy and atopic asthma in children and adolescents, using transcriptome-wide data from WBCs and whole blood samples.
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Affiliation(s)
- Yale Jiang
- Division of Pulmonary Medicine, Dept of Pediatrics, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA.,School of Medicine, Tsinghua University, Beijing, China.,These two authors contributed equally to this work
| | - Olena Gruzieva
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,These two authors contributed equally to this work
| | - Ting Wang
- Division of Pulmonary Medicine, Dept of Pediatrics, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
| | - Erick Forno
- Division of Pulmonary Medicine, Dept of Pediatrics, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nadia Boutaoui
- Division of Pulmonary Medicine, Dept of Pediatrics, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
| | - Tao Sun
- Dept of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Simon K Merid
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Edna Acosta-Pérez
- Behavioral Sciences Research Institute, University of Puerto Rico, San Juan, Puerto Rico
| | - Inger Kull
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Glorisa Canino
- Behavioral Sciences Research Institute, University of Puerto Rico, San Juan, Puerto Rico
| | - Josep M Antó
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain
| | - Jean Bousquet
- CESP, Inserm U1018, Villejuif, France.,University Hospital, Montpellier, France
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,These three authors are joint senior authors
| | - Wei Chen
- Division of Pulmonary Medicine, Dept of Pediatrics, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA.,These three authors are joint senior authors
| | - Juan C Celedón
- Division of Pulmonary Medicine, Dept of Pediatrics, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA .,These three authors are joint senior authors
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Transcriptomic Sequencing of Airway Epithelial Cell NCI-H292 Induced by Synthetic Cationic Polypeptides. BIOMED RESEARCH INTERNATIONAL 2019; 2019:3638469. [PMID: 31058187 PMCID: PMC6463615 DOI: 10.1155/2019/3638469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 01/13/2019] [Accepted: 02/26/2019] [Indexed: 01/06/2023]
Abstract
Eosinophil asthma is characterized by the infiltration of eosinophils to the bronchial epithelium. The toxic cationic protein released by eosinophils, mainly major basic protein (MBP), is one of the most important causative factors of epithelium damage. Poly-L-Arginine (PLA) is a kind of synthetic cationic polypeptides, which is widely used to mimic the effects of MBP on epithelial cells in vitro. However, little is known about the changes of differentially expressed genes (DEGs) and transcriptome profiles in cationic protein stimulated epithelial cells. In this study, we compared the expression of DEGs and transcriptome profiles between PLA-treated airway epithelial cells NCI-H292 and control. The results showed that there were a total of 230 DEGs, of which 86 were upregulated and 144 were downregulated. These DEGs were further analyzed using gene ontology (GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. The results showed that the upregulated DEGs were involved in cholesterol synthesis, protein binding, and composition of cellular membranes, mainly enriched in metabolic and biosynthesis pathways. While downregulated DEGs were implicated in cell adhesion, extracellular matrix (ECM) composition and cytoskeleton and were enriched in ECM pathway. In conclusion, our research provided the mechanism of the cationic polypeptides acting on the airway epithelial cells on the basis of transcriptomic profile, and this could be regarded as important indications in unveiling the pathologic role of natural cationic proteins in the damage to epithelial cells of asthmatics.
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