Innate Immune Response to Viral Infections in Primary Bronchial Epithelial Cells is Modified by the Atopic Status of Asthmatic Patients
| Autor: | Sylwia Moskwa, Anna Lewandowska-Polak, Michael R. Edwards, Małgorzata Pawełczyk, Nikolaos G. Papadopoulos, Jerzy Marczak, Paweł Górski, Marzanna Jarzębska, Sebastian L. Johnston, Wojciech J. Piotrowski, Małgorzata Brauncajs, Anna Głobińska, Marek L. Kowalski |
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| Přispěvatelé: | Commission of the European Communities, Medical Research Council (MRC), University of Zurich, Kowalski, Marek L |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Chemokine Allergy CHILDREN medicine.disease_cause 0302 clinical medicine 10183 Swiss Institute of Allergy and Asthma Research Interferon Immunology and Allergy POSITIVE FEEDBACK bronchial epithelial cells IN-VIVO biology interferon 3. Good health rhinovirus 2723 Immunology and Allergy Original Article Rhinovirus Life Sciences & Biomedicine medicine.drug Pulmonary and Respiratory Medicine GENES parainfluenza virus Immunology RHINOVIRUS INFECTION 610 Medicine & health CCL5 Virus 03 medical and health sciences Immune system INTRINSIC ASTHMA medicine CXCL10 RESPIRATORY VIRUSES INTERFERON RESPONSE Asthma 2403 Immunology Science & Technology business.industry medicine.disease EXACERBATIONS 030104 developmental biology 030228 respiratory system 2740 Pulmonary and Respiratory Medicine biology.protein IFN-BETA business |
| Zdroj: | Allergy, Asthma & Immunology Research |
| ISSN: | 2092-7363 2092-7355 |
| DOI: | 10.4168/aair.2018.10.2.144 |
| Popis: | Purpose In order to gain an insight into determinants of reported variability in immune responses to respiratory viruses in human bronchial epithelial cells (HBECs) from asthmatics, the responses of HBEC to viral infections were evaluated in HBECs from phenotypically heterogeneous groups of asthmatics and in healthy controls. Methods HBECs were obtained during bronchoscopy from 10 patients with asthma (6 atopic and 4 non-atopic) and from healthy controls (n=9) and grown as undifferentiated cultures. HBECs were infected with parainfluenza virus (PIV)-3 (MOI 0.1) and rhinovirus (RV)-1B (MOI 0.1), or treated with medium alone. The cell supernatants were harvested at 8, 24, and 48 hours. IFN-α, CXCL10 (IP-10), and RANTES (CCL5) were analyzed by using Cytometric Bead Array (CBA), and interferon (IFN)-β and IFN-λ1 by ELISA. Gene expression of IFNs, chemokines, and IFN-regulatory factors (IRF-3 and IRF-7) was determined by using quantitative PCR. Results PIV3 and RV1B infections increased IFN-λ1 mRNA expression in HBECs from asthmatics and healthy controls to a similar extent, and virus-induced IFN-λ1 expression correlated positively with IRF-7 expression. Following PIV3 infection, IP-10 protein release and mRNA expression were significantly higher in asthmatics compared to healthy controls (median 36.03-fold). No differences in the release or expression of RANTES, IFN-λ1 protein and mRNA, or IFN-α and IFN-β mRNA between asthmatics and healthy controls were observed. However, when asthmatics were divided according to their atopic status, HBECs from atopic asthmatics (n=6) generated significantly more IFN-λ1 protein and demonstrated higher IFN-α, IFN-β, and IRF-7 mRNA expressions in response to PIV3 compared to non-atopic asthmatics (n=4) and healthy controls (n=9). In response to RV1B infection, IFN-β mRNA expression was lower (12.39-fold at 24 hours and 19.37-fold at 48 hours) in non-atopic asthmatics compared to atopic asthmatics. Conclusions The immune response of HBECs to virus infections may not be deficient in asthmatics, but seems to be modified by atopic status. Keywords: Asthma; bronchial epithelial cells; interferon; parainfluenza virus; rhinovirus |
| Databáze: | OpenAIRE |
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