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IL-33 induces an antiviral signature in mast cells but enhances their permissiveness for human rhinovirus infection

ABSTRACT: Mast cells (MCs) are classically associated with allergic asthma but their role in antiviral immunity is unclear. Human rhinoviruses (HRVs) are a major cause of asthma exacerbations and can infect and replicate within MCs. The primary site of HRV infection is the airway epithelium and MCs localise to this site with increasing asthma severity. The asthma susceptibility gene, IL-33, encodes an epithelial-derived cytokine released following HRV infection but its impact on MC antiviral responses has yet to be determined. In this study we investigated the global response of LAD2 MCs to IL-33 stimulation using RNA sequencing and identified genes involved in antiviral immunity. In spite of this, IL-33 treatment increased permissiveness of MCs to HRV16 infection which, from the RNA-Seq data, we attributed to upregulation of ICAM1. Flow cytometric analysis confirmed an IL-33-dependent increase in ICAM1 surface expression as well as LDLR, the receptors used by major and minor group HRVs for cellular entry. Neutralisation of ICAM1 reduced the IL-33-dependent enhancement in HRV16 replication and release in both LAD2 MCs and cord blood derived MCs. These findings demonstrate that although IL-33 induces an antiviral signature in MCs, it also upregulates the receptors for HRV entry to enhance infection. This highlights the potential for a gene-environment interaction involving IL33 and HRV in MCs to contribute to virus-induced asthma exacerbations.

ORGANISM(S): Homo sapiens

PROVIDER: GSE216269 | GEO | 2022/11/01

REPOSITORIES: GEO

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Rhinovirus-induced modulation of gene expression in bronchial epithelial cells from subjects with asthma

2008-11-01 | GSE13396 | GEO

Transcription profiling of human bronchial epithelial cells from normal and asthmatic individuals to investigate rhinovirus-induced modulation of gene expression

Project description:Human Rhinovirus (HRV) infection can trigger exacerbations of asthma. Understanding of the mechanisms provoking airway inflammation and remodeling in asthma, as well as the pathogenic mechanisms of HRV infection and its association with asthma exacerbations, may offer significant opportunities for improved disease management. Genome-wide expression analysis of HRV type 1A-infected primary bronchial epithelial (PBE) cells from normal and asthmatic donors was performed to determine whether asthma is associated with a unique pattern of gene expression after HRV infection in vitro. Experiment Overall Design: Frozen stocks of human PBE cells obtained from the bronchial brushings of six normal and five asthmatic individuals were grown in vitro in Bronchial Epithelial Growth Media (BEGM, Lonza). Subconfluent monolayers of PBE cells were infected with purified and concentrated minor group HRV serotype 1A at multiplicity of infection of 10 plaque forming units (pfu) per cell or mock-infected with growth media alone. Cells were lysed 16 hours post infection (p.i.) and isolated total RNAs were analyzed using the Human Genome U133 Plus 2.0 GeneChip arrays (Affymetrix, Santa Clara, CA).

2008-11-13 | E-GEOD-13396 | biostudies-arrayexpress

RHINOVIRUS INFECTION OF THE AIRWAY EPITHELIUM ENHANCES MAST CELL IMMUNE RESPONSES VIA EPITHELIAL-DERIVED INTERFERONS

Project description:Rationale: Mast cells (MCs) within the airway epithelium in asthma are closely related to airway dysfunction, but crosstalk between airway epithelial cells (AECs) and MCs in asthma remains incompletely understood. Human rhinovirus (HRV) infections are key triggers for asthma progression and AECs from individuals with asthma may have dysregulated anti-viral responses. Objectives: We utilize primary phenotyped AECs in an ex vivo coculture model system to examine crosstalk between AECs and MCs following epithelial HRV infection. Methods: Primary AECs were obtained from children with asthma (n=11) and healthy children (n=10), differentiated at air-liquid interface, and cultured in the presence of laboratory of allergic diseases-2 (LAD2) MCs. AECs were infected with HRV serogroup A 16 (HRV16) for 48 hours. RNA isolated from both AECs and MCs underwent RNA-sequencing (RNAseq) analysis. Direct effects of epithelial-derived interferons on LAD2 MCs were examined by qPCR. Results: MCs increased expression of pro-inflammatory and anti-viral genes in AECs. AECs demonstrated a robust antiviral response following HRV16 infection that resulted in significant changes in MC gene expression, including upregulation of genes involved in anti-viral responses, leukocyte activation, and type-2 (T2) inflammation. Subsequent ex vivo modeling demonstrated that IFN-β induces MC IL13 expression. The effects of AEC phenotype were small relative to the effects of viral infection and the presence of MCs. Conclusions: There is significant crosstalk between AECs and MCs, which are present in the epithelium in asthma. Epithelial-derived interferons not only play a role in viral suppression, but further alter MC immune responses including specific T2 genes.

2022-06-22 | GSE206680 | GEO

Major and Minor Group Human Rhinovirus Response in Human Macrophages

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2014-03-14 | E-GEOD-55271 | biostudies-arrayexpress

Rhinovirus infection results in stronger and more persistent genomic dysregulation: evidence for altered innate immune response in asthmatics at baseline, early in infection, and during convalescence

Project description:Background: Rhinovirus (HRV) is associated with the large majority of virus-induced asthma exacerbations in children and young adults, but the mechanisms remain poorly defined. Methods: Asthmatics and non-asthmatic controls were inoculated with HRV-A16, and nasal epithelial samples were obtained 7 days before, 36 hours after, and 7 days after viral inoculation. RNA was extracted and subjected to RNA-seq analysis. Results: At baseline, 57 genes were differentially expressed between asthmatics and controls, and the asthmatics had decreased expression of viral replication inhibitors and increased expression of genes involved in inflammation. At 36 hours (before the emergence of peak symptoms), 1329 genes were significantly altered from baseline in the asthmatics compared to 62 genes in the controls. At this time point, asthmatics lacked an increase in IL-10 signaling observed in the controls. At 7 days following HRV inoculation, 222 genes were significantly dysregulated in the asthmatics, whereas only 4 genes were dysregulated among controls. At this time point, the controls but not asthmatics demonstrated upregulation of SPINK5. Conclusions: As judged by the magnitude and persistence of dysregulated genes, asthmatics have a substantially different host response to HRV-A16 infection compared with non-asthmatic controls. Gene expression differences illuminate biologically plausible mechanisms that contribute to a better understanding of the pathogenesis of HRV-induced asthma exacerbations.

2017-05-26 | GSE97668 | GEO

Human rhinovirus infection causes different DNA methylation changes in nasal epithelial cells from healthy and asthmatic subjects

Project description:Background: Mechanisms underlying the development of virus-induced asthma exacerbations remain unclear. Objective: To investigate if epigenetic mechanisms could be involved in virus-induced asthma exacerbations, we undertook DNA methylation profiling in asthmatic and healthy nasal epithelial cells (NECs) during Human Rhinovirus (HRV) infection in vitro. Methods: Global and loci-specific methylation profiles were determined via Alu element and Infinium Human Methylation 450K microarray respectively. Principal components analysis identified the genomic loci influenced the most by disease-status and infection. Real-time PCR and pyrosequencing was used to confirm gene expression and DNA methylation respectively. Results: Global methylation was increased in Asthmatics during infection. Disease status and virus infection influenced the methylation of 389 loci. Healthy and asthmatic NECs were characterized predominately by methylation profiles and patterns in loci that were not influenced by virus infection. However, both groups also exhibited distinct DNA methylation profiles in response to infection. Despite these differences, we found that the methylation of small nucleolar RNA, H/ACA box 12 (SNORA12) was common during infection. Further analysis indicated a relationship existed between SNORA12 DNA methylation and gene expression in response to infection. Conclusions: Findings from our study indicate that in addition to the well described phenotypic and genomic differences, the airway epithelium of asthmatics is characterized by a distinct methylome and that epigenetic mechanism may contribute to the development of virus-induced asthma exacerbations. Bisulphite converted DNA from matched mock and human rhinovirus-16 infected nasal epithelial cells from Healthy (n=3) and Asthmatics (n=6) adults were hybridized to the Illumina DNA methylation 450K Bead Array.

2014-07-28 | E-GEOD-52074 | biostudies-arrayexpress

Major and Minor Group Human Rhinovirus Response in Human Macrophages

2014-03-14 | GSE55271 | GEO

Human rhinovirus infection causes different DNA methylation changes in nasal epithelial cells from healthy and asthmatic subjects

2014-07-28 | GSE52074 | GEO

IL-33 blockade impacts mediators of persistence and exacerbation in a model of chronic airway inflammation

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2019-09-13 | GSE137324 | GEO

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2021-09-01 | GSE137905 | GEO

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