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An Q, Cao Y, Guo W, Jiang Z, Luo H, Liu H, Zhan X. Identification of common genes of rhinovirus single/double‑stranded RNA‑induced asthma deterioration by bioinformatics analysis. Exp Ther Med 2024; 27:210. [PMID: 38590566 PMCID: PMC11000450 DOI: 10.3892/etm.2024.12498] [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: 08/28/2023] [Accepted: 01/29/2024] [Indexed: 04/10/2024] Open
Abstract
Rhinovirus (RV) is the most common respiratory virus affecting humans. The majority of asthma deteriorations are triggered by RV infections. However, whether the effects of RV single- and double-stranded RNA on asthma deterioration have common target genes needs to be further studied. In the present study, two datasets (GSE51392 and GSE30326) were used to screen for common differentially expressed genes (cDEGs). The molecular function, signaling pathways, interaction networks, hub genes, key modules and regulatory molecules of cDEGs were systematically analyzed using online tools such as Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, STRING and NetworkAnalyst. Finally, the hub genes STAT1 and IFIH1 were verified in clinical samples using reverse transcription-quantitative PCR (RT-qPCR). A total of 85 cDEGs were identified. Function analysis revealed that cDEGs served an important role in the innate immune response to viruses and its regulation. Signal transducer and activator of transcription 1 (STAT1), interferon induced with helicase C domain 1 (IFIH1), interferon regulatory factor 7 (IRF7), DExD/H box helicase 58 (DDX58) and interferon-stimulating gene 15 (ISG15) were detected to be hub genes based on the protein-protein interactions and six topological algorithms. A key module involved in influenza A, the Toll-like receptor signaling pathway, was identified using Cytoscape software. The hub genes were regulated by GATA-binding factor 2 and microRNA-146a-5p. In addition, RT-qPCR indicated that the expression levels of the hub genes STAT1 and IFIH1 were low during asthma deterioration compared with post-treatment recovery samples. The present study enhanced the understanding of the mechanism of RV-induced asthma deterioration.
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Affiliation(s)
- Qian An
- Department of Respiratory and Critical Care Medicine, Wuhu Hospital of Traditional Chinese Medicine, Wuhu, Anhui 241000, P.R. China
| | - Yi Cao
- Department of Medical Parasitology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Wei Guo
- Department of Medical Parasitology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Ziyun Jiang
- Department of Medical Parasitology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Hui Luo
- Department of Medical Parasitology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Hui Liu
- Department of Medical Parasitology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Xiaodong Zhan
- Department of Medical Parasitology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
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Sena CRDS, Morten M, Collison AM, Shaar A, Andrade EDQ, Meredith J, Kepreotes E, Murphy VE, Sly PD, Whitehead B, Karmaus W, Gibson PG, Robinson PD, Mattes J. Bronchiolitis hospital admission in infancy is associated with later preschool ventilation inhomogeneity. Pediatr Pulmonol 2024; 59:632-641. [PMID: 38088225 DOI: 10.1002/ppul.26793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 10/08/2023] [Accepted: 11/25/2023] [Indexed: 02/16/2024]
Abstract
BACKGROUND Rhinovirus (RV) positive bronchiolitis episodes in infancy confer a higher risk to develop asthma in later childhood with associated lung function impairments. We aimed to investigate the association between the type of virus causing a bronchiolitis hospitalization episode and lung ventilation inhomogeneities at preschool age. METHODS Infants hospitalized with a clinical diagnosis of moderate (ward admission) or severe (pediatric intensive care ward admission) bronchiolitis were prospectively followed-up at preschool age to assess nitrogen (N2 ) multiple breath washout (MBW). Lung clearance index (LCI), functional residual capacity (FRC), and concentration normalized phase III slope analysis (SnIII ) indices were reported from ≥2 technically acceptable trials. Differences between groups were calculated using logistic and linear regression and adjusted for confounders (sex, age at bronchiolitis admission, height at visit, maternal asthma, and doctor-diagnosed asthma, including interaction terms between the latter three). An interaction term was included in a regression model to test for an interaction between RV bronchiolitis severity and MBW parameters at preschool age. RESULTS One hundred and thirty-nine subjects attended preschool follow-up, of which 84 out of 103 (82%) performing MBW had technically acceptable data. Children with a history of RV positive bronchiolitis (n = 39) had increased LCI (adjusted β-coefficient [aβ] = 0.33, 95% confidence interval [CI] 0.02-0.65, p = 0.040) and conductive airways ventilation inhomogeneity [Scond ] (aβ = 0.016, CI 0.004-0.028, p = 0.011) when compared with those with a RV negative bronchiolitis history (n = 45). In addition, we found a statistical interaction between RV bronchiolitis and bronchiolitis severity strengthening the association with LCI (aβ = 0.93, CI 0.20-1.58, p = 0.006). CONCLUSION Children with a history of hospital admission for RV positive bronchiolitis in infancy might be at a higher risk of lung ventilation inhomogeneities at preschool age, arising from the peripheral conducting airways.
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Affiliation(s)
- Carla Rebeca Da Silva Sena
- University of Newcastle, Hunter Medical Research Institute, Priority Research Centre GrowUpWell®, Newcastle, New South Wales, Australia
| | - Matthew Morten
- University of Newcastle, Hunter Medical Research Institute, Priority Research Centre GrowUpWell®, Newcastle, New South Wales, Australia
| | - Adam M Collison
- University of Newcastle, Hunter Medical Research Institute, Priority Research Centre GrowUpWell®, Newcastle, New South Wales, Australia
| | - Aida Shaar
- The Children's Hospital at Westmead, Department of Respiratory Medicine, Sydney, New South Wales, Australia
| | - Ediane de Queiroz Andrade
- University of Sydney, Discipline of Paediatrics and Child Health, Sydney, New South Wales, Australia
| | - Joseph Meredith
- John Hunter Children's Hospital, Department of Paediatric Respiratory & Sleep Medicine, Newcastle, New South Wales, Australia
| | - Elizabeth Kepreotes
- University of Newcastle, Hunter Medical Research Institute, Priority Research Centre GrowUpWell®, Newcastle, New South Wales, Australia
- Far West Local Health District, NSW Local Health District, Broken Hill, New South Wales, Australia
| | - Vanessa E Murphy
- University of Newcastle, Hunter Medical Research Institute, Priority Research Centre Healthy Lungs, Newcastle, New South Wales, Australia
| | - Peter D Sly
- The University of Queensland, Child Health Research Centre, Brisbane, Queensland, Australia
| | - Bruce Whitehead
- John Hunter Children's Hospital, Department of Paediatric Respiratory & Sleep Medicine, Newcastle, New South Wales, Australia
| | - Wilfried Karmaus
- University of Memphis, School of Public Health, Memphis, Tennessee, USA
| | - Peter G Gibson
- University of Newcastle, Hunter Medical Research Institute, Priority Research Centre Healthy Lungs, Newcastle, New South Wales, Australia
| | - Paul D Robinson
- The Children's Hospital at Westmead, Department of Respiratory Medicine, Sydney, New South Wales, Australia
- University of Sydney, Discipline of Paediatrics and Child Health, Sydney, New South Wales, Australia
- Woolcock Medical Research Institute, Airway Imaging and Physiology Group, Sydney, New South Wales, Australia
| | - Joerg Mattes
- University of Newcastle, Hunter Medical Research Institute, Priority Research Centre GrowUpWell®, Newcastle, New South Wales, Australia
- John Hunter Children's Hospital, Department of Paediatric Respiratory & Sleep Medicine, Newcastle, New South Wales, Australia
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Papadopoulos NG, Apostolidou E, Miligkos M, Xepapadaki P. Bacteria and viruses and their role in the preschool wheeze to asthma transition. Pediatr Allergy Immunol 2024; 35:e14098. [PMID: 38445451 DOI: 10.1111/pai.14098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 03/07/2024]
Abstract
Wheezing is the cardinal symptom of asthma; its presence early in life, mostly caused by viral infections, is a major risk factor for the establishment of persistent or recurrent disease. Early-life wheezing and asthma exacerbations are triggered by common respiratory viruses, mainly rhinoviruses (RV), and to a lesser extent, respiratory syncytial virus, parainfluenza, human metapneumovirus, coronaviruses, adenoviruses, influenza, and bocavirus. The excess presence of bacteria, several of which are part of the microbiome, has also been identified in association with wheezing and acute asthma exacerbations, including haemophilus influenza, streptococcus pneumoniae, moraxella catarrhalis, mycoplasma pneumoniae, and chlamydophila pneumonia. While it is not clear when asthma starts, its characteristics develop over time. Airway remodeling already appears between the ages of 1 and 3 years of age even prior to the presence of atopic inflammation or an asthma diagnosis. The role of genetic defect or variations hampering the airway epithelium in response to environmental stimuli and severe disease morbidity are now considered as major determinants for early structural changes. Repeated viral infections can induce and perpetuate airway hyperresponsiveness. Allergic sensitization, that often precedes infection-induced wheezing, shifts inflammation toward type-2, while common respiratory infections themselves promote type-2 inflammation. Nevertheless, most children who wheeze with viral infections during infancy and during preschool years do not develop persistent asthma. Multiple factors, including illness severity, viral etiology, allergic sensitization, and the exposome, are associated with disease persistence. Here, we summarize current knowledge and developments in infection epidemiology of asthma in children, describing the known impact of each individual agent and mechanisms of transition from recurrent wheeze to asthma.
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Affiliation(s)
- Nikolaos G Papadopoulos
- Allergy Department, 2nd Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK
| | | | - Michael Miligkos
- Allergy Department, 2nd Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Paraskevi Xepapadaki
- Allergy Department, 2nd Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
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Panchal MH, Swindle EJ, Pell TJ, Rowan WC, Childs CE, Thompson J, Nicholas BL, Djukanovic R, Goss VM, Postle AD, Davies DE, Blume C. Membrane lipid composition of bronchial epithelial cells influences antiviral responses during rhinovirus infection. Tissue Barriers 2024:2300580. [PMID: 38179897 DOI: 10.1080/21688370.2023.2300580] [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: 09/13/2023] [Accepted: 12/22/2023] [Indexed: 01/06/2024] Open
Abstract
Lipids and their mediators have important regulatory functions in many cellular processes, including the innate antiviral response. The aim of this study was to compare the lipid membrane composition of in vitro differentiated primary bronchial epithelial cells (PBECs) with ex vivo bronchial brushings and to establish whether any changes in the lipid membrane composition affect antiviral defense of cells from donors without and with severe asthma. Using mass spectrometry, we showed that the lipid membrane of in vitro differentiated PBECs was deprived of polyunsaturated fatty acids (PUFAs) compared to ex vivo bronchial brushings. Supplementation of the culture medium with arachidonic acid (AA) increased the PUFA-content to more closely match the ex vivo membrane profile. Rhinovirus (RV16) infection of AA-supplemented cultures from healthy donors resulted in significantly reduced viral replication while release of inflammatory mediators and prostaglandin E2 (PGE2) was significantly increased. Indomethacin, an inhibitor of prostaglandin-endoperoxide synthases, suppressed RV16-induced PGE2 release and significantly reduced CXCL-8/IL-8 release from AA-supplemented cultures indicating a link between PGE2 and CXCL8/IL-8 release. In contrast, in AA-supplemented cultures from severe asthmatic donors, viral replication was enhanced whereas PTGS2 expression and PGE2 release were unchanged and CXCL8/IL-8 was significantly reduced in response to RV16 infection. While the PTGS2/COX-2 pathway is initially pro-inflammatory, its downstream products can promote symptom resolution. Thus, reduced PGE2 release during an RV-induced severe asthma exacerbation may lead to prolonged symptoms and slower recovery. Our data highlight the importance of reflecting the in vivo lipid profile in in vitro cell cultures for mechanistic studies.
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Affiliation(s)
- Madhuriben H Panchal
- Faculty of Medicine, School of Clinical and Experimental Sciences, University of Southampton, Southampton, UK
- Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
| | - Emily J Swindle
- Faculty of Medicine, School of Clinical and Experimental Sciences, University of Southampton, Southampton, UK
- Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
| | | | | | - Caroline E Childs
- Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
- Faculty of Medicine, School of Human Development and Health, University of Southampton, Southampton, UK
| | - James Thompson
- Biomedical Imaging Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Benjamin L Nicholas
- Faculty of Medicine, School of Clinical and Experimental Sciences, University of Southampton, Southampton, UK
- Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Ratko Djukanovic
- Faculty of Medicine, School of Clinical and Experimental Sciences, University of Southampton, Southampton, UK
- Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Victoria M Goss
- Faculty of Medicine, School of Clinical and Experimental Sciences, University of Southampton, Southampton, UK
- Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
| | - Anthony D Postle
- Faculty of Medicine, School of Clinical and Experimental Sciences, University of Southampton, Southampton, UK
- Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Donna E Davies
- Faculty of Medicine, School of Clinical and Experimental Sciences, University of Southampton, Southampton, UK
- Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Cornelia Blume
- Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
- Faculty of Medicine, School of Human Development and Health, University of Southampton, Southampton, UK
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Townsend EA, Guadarrama A, Shi L, Roti Roti E, Denlinger LC. P2X 7 signaling influences the production of pro-resolving and pro-inflammatory lipid mediators in alveolar macrophages derived from individuals with asthma. Am J Physiol Lung Cell Mol Physiol 2023; 325:L399-L410. [PMID: 37581221 PMCID: PMC10639011 DOI: 10.1152/ajplung.00070.2023] [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: 02/28/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/16/2023] Open
Abstract
Few new therapeutics exist to target airway inflammation in mild-to-moderate asthma. Alveolar macrophages regulate airway inflammation by producing proresolving eicosanoids. We hypothesized that stimulation of the purinergic receptor P2X7 in macrophages from individuals with asthma produces eicosanoids associated with airway inflammation and resolution, and that these responses are predicted, in part, by P2X7 pore function. Study subjects were recruited in an Institutional Review Board (IRB)-approved study. Alveolar macrophages were recovered from bronchoalveolar lavage fluid following bronchoscopy. Purinergic receptor classification was performed using flow cytometry and fluorescent cell assay. Macrophages were stimulated in vitro and eicosanoids were measured via ELISA or enzyme immunoassay (EIA) in the presence and absence of P2X7-specific agonist [2'(3')-O-(4-Benzoylbenzoyl)adenosine-5'-triphosphate tri(triethylammonium) salt (Bz-ATP)] and antagonist (AZD9056). Functional P2X7 pore status was confirmed in a live cell assay using P2X7-specific agonists and antagonists. Alveolar macrophages produced increased quantities of the oxylipins lipoxin A4 (LXA4), resolvin D1 (RvD1), and 15(S)-hydroxyeicosatetraenoic acid (15(S)-HETE) following stimulation with Bz-ATP compared with vehicle controls, responses that were attenuated in the presence of the P2X7-selective antagonist, AZD9056. LXA4 and RvD1 production was greatest at 1 h, whereas 15(S)-HETE was maximally produced 24 h. Prostaglandin E-2 and resolvin E1 were minimally produced by P2X7 activation, indicating differential signaling pathways involved in eicosanoid production in alveolar macrophages derived from individuals with asthma. The early production of the proresolving eicosanoids, LXA4 and resolvin D1, is regulated by P2X7, whereas generation of the proinflammatory eicosanoid, 15(S)-HETE, is only partially regulated through P2X7 signaling and reaches maximal production after the peak in proresolving eicosanoids.NEW & NOTEWORTHY Alveolar macrophages obtained from individuals with asthma produce soluble lipid mediators in response to P2X7 purinergic receptor signaling. Proinflammatory mediators may contribute to asthma exacerbations but proresolving mediators may help with resolution of asthma loss of control. These specialized proresolving lipid mediators may serve as future potential therapeutics for asthma exacerbation resolution and recovery.
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Affiliation(s)
- Elizabeth A Townsend
- Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States
| | - Arturo Guadarrama
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States
| | - Lei Shi
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States
| | - Elon Roti Roti
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States
| | - Loren C Denlinger
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States
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Tanyaratsrisakul S, Dy ABC, Polverino F, Numata M, Ledford JG. Myeloid-associated differentiation marker is associated with type 2 asthma and is upregulated by human rhinovirus infection. Front Immunol 2023; 14:1237683. [PMID: 37638015 PMCID: PMC10450947 DOI: 10.3389/fimmu.2023.1237683] [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: 06/09/2023] [Accepted: 07/24/2023] [Indexed: 08/29/2023] Open
Abstract
Background Human rhinoviruses are known to predispose infants to asthma development during childhood and are often associated with exacerbations in asthma patients. MYADM epithelial expression has been shown to associate with asthma severity. The goal of this study was to determine if MYADM expression patterns were altered in asthma and/or rhinovirus infection and if increased MYADM expression is associated with increased asthma-associated factors. Methods Utilizing H1HeLa cells and differentiated primary human airway epithelial cells (AECs), we measured the expression of MYADM and inflammatory genes by qRT-PCR in the presence or absence of RV-1B infection or poly I:C treatment and with siRNA knockdown of MYADM. Expression of MYADM in the asthmatic lung was determined in the ovalbumin (ova)-challenged murine model. Results MYADM expression was upregulated in the lungs from ova-treated mice and in particular on the subsurface vesicle membrane in airway epithelial cells. Upon infection with RV-1B, human AECs grown at an air-liquid interface had increased the MYADM expression predominantly detected in ciliated cells. We found that the presence of MYADM was required for expression of several inflammatory genes both in a resting state and after RV-1B or poly I:C treatments. Conclusions Our studies show that in a mouse model of asthma and during RV-1B infection of primary human AECs, increased MYADM expression is observed. In the mouse model of asthma, MYADM expression was predominantly on the luminal side of airway epithelial cells. Additionally, MYADM expression was strongly associated with increases in inflammatory genes, which may contribute to more severe asthma and RV-linked asthma exacerbations.
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Affiliation(s)
| | - Alane Blythe C. Dy
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, United States
| | - Francesca Polverino
- Department of Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Mari Numata
- Department of Medicine, National Jewish Health, Denver, CO, United States
| | - Julie G. Ledford
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, United States
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, United States
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Fang L, Zhou L, Kulić Ž, Lehner MD, Tamm M, Roth M. EPs ® 7630 Stimulates Tissue Repair Mechanisms and Modifies Tight Junction Protein Expression in Human Airway Epithelial Cells. Int J Mol Sci 2023; 24:11230. [PMID: 37446408 DOI: 10.3390/ijms241311230] [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: 05/17/2023] [Revised: 06/29/2023] [Accepted: 07/01/2023] [Indexed: 07/15/2023] Open
Abstract
Airway epithelium repair after infection consists of wound repair, re-synthesis of the extracellular matrix (ECM), and tight junction proteins. In humans, EPs® 7630 obtained from Pelargonium sidoides roots reduces the severity and duration of acute respiratory tract infections. The effect of EPs® 7630 on tissue repair of rhinovirus-16 (RV-16) infected and control human airway epithelial cells was assessed for: (i) epithelial cell proliferation by manual cell counts, (ii) epithelial wound repair by "scratch assay", (iii) ECM composition by Western-blotting and cell-based ELISA, and (iv) epithelial tight junction proteins by Western-blotting. EPs® 7630 stimulated cell proliferation through cAMP, CREB, and p38 MAPK. EPs® 7630 significantly improved wound repair. Pro-inflammatory collagen type-I expression was reduced by EPs® 7630, while fibronectin was increased. Virus-binding tight junction proteins desmoglein2, desmocollin2, ZO-1, claudin1, and claudin4 were downregulated by EPs® 7630. The RV16-induced shift of the ECM towards the pro-inflammatory type was prevented by EPs® 7630. Most of the effects of EPs® 7630 on tissue repair and regeneration were sensitive to inhibition of cAMP-induced signaling. The data suggest that EPs® 7630-dependent modification of epithelial cell metabolism and function might underlie the faster recovery time from viral infections, as reported by others in clinical studies.
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Affiliation(s)
- Lei Fang
- Pulmonary Cell Research, Department of Biomedicine & Clinic of Pneumology, University and University Hospital Basel, CH-4031 Basel, Switzerland
| | - Liang Zhou
- Pulmonary Cell Research, Department of Biomedicine & Clinic of Pneumology, University and University Hospital Basel, CH-4031 Basel, Switzerland
| | - Žarko Kulić
- Preclinical Research and Development, Dr. Willmar Schwabe GmbH & Co. KG, D-76227 Karlsruhe, Germany
| | - Martin D Lehner
- Preclinical Research and Development, Dr. Willmar Schwabe GmbH & Co. KG, D-76227 Karlsruhe, Germany
| | - Michael Tamm
- Pulmonary Cell Research, Department of Biomedicine & Clinic of Pneumology, University and University Hospital Basel, CH-4031 Basel, Switzerland
| | - Michael Roth
- Pulmonary Cell Research, Department of Biomedicine & Clinic of Pneumology, University and University Hospital Basel, CH-4031 Basel, Switzerland
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McKay S, Teitsma-Jansen A, Floris E, Dekker T, Smids B, Khurshid R, Calame W, Kardinaal A, Lutter R, Albers R. Effects of Dietary Supplementation with Carrot-Derived Rhamnogalacturonan-I (cRG-I) on Accelerated Protective Immune Responses and Quality of Life in Healthy Volunteers Challenged with Rhinovirus in a Randomized Trial. Nutrients 2022; 14:4258. [PMID: 36296939 PMCID: PMC9607575 DOI: 10.3390/nu14204258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/04/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
An adequate and balanced supply of nutrients is essential for maintaining health, and an optimal immune response is fast, contained and properly controlled, curbing infections quickly while minimizing damage. Several micronutrients contribute to normal immune function and certain dietary fibers, for example pectic polysaccharides, can play an important role in educating and regulating immune cell responses. The aim of this paper is to elaborate on our initial findings that dietary supplementation with carrot-derived rhamnogalacturonan-I (cRG-I) accelerates and augments local innate immune and anti-viral interferon response to a rhinovirus-16 (RV16) infection and reduces the severity and duration of symptoms in humans. Dietary intake of cRG-I also enhanced immune responses to this respiratory viral infection as measured by ex vivo stimulation of whole blood with the Toll-like receptor 3 (TLR3) ligand polyinosinic:polycytidylic acid and NK cell function. Consumption of cRG-I also reduced the negative effects of this common cold infection on quality of life as assessed by individual symptom scores. RG-I from carrot is a safe, sustainable, and economically viable solution that could easily be integrated into food products and dietary supplements aiming to support immune fitness and wellbeing.
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Affiliation(s)
- Sue McKay
- NutriLeads B.V., Bronland 12-N, 6708 WH Wageningen, The Netherlands
| | - Annemarie Teitsma-Jansen
- Amsterdam UMC, Department of Experimental Immunology, University of Amsterdam and Amsterdam Infection & Immunity Institute, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | | | - Tamara Dekker
- Amsterdam UMC, Department of Experimental Immunology, University of Amsterdam and Amsterdam Infection & Immunity Institute, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Barbara Smids
- Amsterdam UMC, Department of Experimental Immunology, University of Amsterdam and Amsterdam Infection & Immunity Institute, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Ridha Khurshid
- Amsterdam UMC, Department of Experimental Immunology, University of Amsterdam and Amsterdam Infection & Immunity Institute, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Wim Calame
- StatistiCal B.V., Strandwal 148, 2241 MN Wassenaar, The Netherlands
| | | | - René Lutter
- Amsterdam UMC, Department of Experimental Immunology, University of Amsterdam and Amsterdam Infection & Immunity Institute, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Ruud Albers
- NutriLeads B.V., Bronland 12-N, 6708 WH Wageningen, The Netherlands
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Microarray-Based Analyses of Rhinovirus Species-Specific Antibody Responses in Exacerbated Pediatric Asthma in a German Pediatric Cohort. Viruses 2022; 14:v14091857. [PMID: 36146664 PMCID: PMC9502376 DOI: 10.3390/v14091857] [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: 07/03/2022] [Revised: 08/15/2022] [Accepted: 08/18/2022] [Indexed: 02/05/2023] Open
Abstract
Rhinoviruses (RV) account for a significant number of asthma exacerbations, and RV species C may be associated with a severe course in vulnerable patient groups. Despite important evidence on the role of RV reported by clinicians and life scientists, there are still unanswered questions regarding their influence on asthma exacerbation in young patients. Thus, we measured the RVspecies-specific IgG titers in our German pediatric exacerbation cohort using a microarray-based technology. For this approach, human sera of patients with exacerbated asthma and wheeze, as well as healthy control subjects (n = 136) were included, and correlation analyses were performed. Concordantly with previously published results, we observed significantly higher cumulative levels of RV species A-specific IgG (p = 0.011) and RV-C-specific IgG (p = 0.051) in exacerbated asthma group compared to age-matched controls. Moreover, atopic wheezers had increased RV-specific IgG levels for species A (p = 0.0011) and species C (p = 0.0009) compared to non-atopic wheezers. Hypothesizing that bacterial infection positively correlates with immune memory against RV, we included nasopharyngeal swab results in our analyses and detected limited correlations. Interestingly, the eosinophil blood titer positively correlated with RV-specific IgG levels. With these observations, we add important observations to the existing data regarding exacerbation in pediatric and adolescent medicine. We propose that scientists and clinicians should pay more attention to the relevance of RV species in susceptible pediatric patients.
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Hernandez-Pacheco N, Kere M, Melén E. Gene-environment interactions in childhood asthma revisited; expanding the interaction concept. Pediatr Allergy Immunol 2022; 33:e13780. [PMID: 35616899 PMCID: PMC9325482 DOI: 10.1111/pai.13780] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 04/13/2022] [Indexed: 01/04/2023]
Abstract
Investigation of gene-environment interactions (GxE) may provide important insights into the gene regulatory framework in response to environmental factors of relevance for childhood asthma. Over the years, different methodological strategies have been applied, more recently using genome-wide approaches. The best example to date is the major asthma locus on the 17q12-21 chromosome region, viral infections, and airway epithelium processes where recent studies have shed much light on mechanisms in childhood asthma. However, there are challenges with the traditional single variant-single exposure interaction models, as they do not encompass the complexity and cumulative effects of multiple exposures or multiple genetic variants. As such, we need to redefine our traditional GxE thinking, and we propose in this review to expand the GxE concept by also evaluating other omics layers, such as epigenetics, transcriptomics, metabolomics, and proteomics. In addition, host factors such as age, gender, and other exposures are very likely to influence GxE effects and need firmly to be considered in future studies.
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Affiliation(s)
- Natalia Hernandez-Pacheco
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.,CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Maura Kere
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Erik Melén
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.,Sachs' Children's Hospital, South General Hospital, Stockholm, Sweden
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11
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Love ME, Proud D. Respiratory Viral and Bacterial Exacerbations of COPD—The Role of the Airway Epithelium. Cells 2022; 11:cells11091416. [PMID: 35563722 PMCID: PMC9099594 DOI: 10.3390/cells11091416] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/13/2022] [Accepted: 04/19/2022] [Indexed: 12/14/2022] Open
Abstract
COPD is a leading cause of death worldwide, with acute exacerbations being a major contributor to disease morbidity and mortality. Indeed, exacerbations are associated with loss of lung function, and exacerbation frequency predicts poor prognosis. Respiratory infections are important triggers of acute exacerbations of COPD. This review examines the role of bacterial and viral infections, along with co-infections, in the pathogenesis of COPD exacerbations. Because the airway epithelium is the initial site of exposure both to cigarette smoke (or other pollutants) and to inhaled pathogens, we will focus on the role of airway epithelial cell responses in regulating the pathophysiology of exacerbations of COPD. This will include an examination of the interactions of cigarette smoke alone, and in combination with viral and bacterial exposures in modulating epithelial function and inflammatory and host defense pathways in the airways during COPD. Finally, we will briefly examine current and potential medication approaches to treat acute exacerbations of COPD triggered by respiratory infections.
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12
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Watkinson RL, Looi K, Laing IA, Cianferoni A, Kicic A. Viral Induced Effects on a Vulnerable Epithelium; Lessons Learned From Paediatric Asthma and Eosinophilic Oesophagitis. Front Immunol 2021; 12:773600. [PMID: 34912343 PMCID: PMC8666438 DOI: 10.3389/fimmu.2021.773600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/05/2021] [Indexed: 01/07/2023] Open
Abstract
The epithelium is integral to the protection of many different biological systems and for the maintenance of biochemical homeostasis. Emerging evidence suggests that particular children have epithelial vulnerabilities leading to dysregulated barrier function and integrity, that resultantly contributes to disease pathogenesis. These epithelial vulnerabilities likely develop in utero or in early life due to various genetic, epigenetic and environmental factors. Although various epithelia are uniquely structured with specific function, prevalent allergic-type epithelial diseases in children potentially have common or parallel disease processes. These include inflammation and immune response dysregulation stemming from atypical epithelial barrier function and integrity. Two diseases where aetiology and pathogenesis are potentially linked to epithelial vulnerabilities include Paediatric Asthma and Eosinophilic Oesophagitis (EoE). For example, rhinovirus C (RV-C) is a known risk factor for paediatric asthma development and is known to disrupt respiratory epithelial barrier function causing acute inflammation. In addition, EoE, a prevalent atopic condition of the oesophageal epithelium, is characterised by similar innate immune and epithelial responses to viral injury. This review examines the current literature and identifies the gaps in the field defining viral-induced effects on a vulnerable respiratory epithelium and resulting chronic inflammation, drawing from knowledge generated in acute wheezing illness, paediatric asthma and EoE. Besides highlighting the importance of epithelial structure and barrier function in allergic disease pathogenesis regardless of specific epithelial sub-types, this review focuses on the importance of examining other parallel allergic-type disease processes that may uncover commonalities driving disease pathogenesis. This in turn may be beneficial in the development of common therapeutics for current clinical management and disease prevention in the future.
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Affiliation(s)
- Rebecca L Watkinson
- Division of Paediatrics, Medical School, The University of Western Australia, Nedlands, WA, Australia.,Wal-Yan Respiratory Research Centre, Telethon Kids Institute, Perth, WA, Australia
| | - Kevin Looi
- Wal-Yan Respiratory Research Centre, Telethon Kids Institute, Perth, WA, Australia.,School of Public Health, Curtin University, Bentley, WA, Australia
| | - Ingrid A Laing
- Division of Paediatrics, Medical School, The University of Western Australia, Nedlands, WA, Australia.,Wal-Yan Respiratory Research Centre, Telethon Kids Institute, Perth, WA, Australia
| | - Antonella Cianferoni
- Pediatrics Department, Perlman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Anthony Kicic
- Wal-Yan Respiratory Research Centre, Telethon Kids Institute, Perth, WA, Australia.,School of Public Health, Curtin University, Bentley, WA, Australia.,Centre for Cell Therapy and Regenerative Medicine, School of Medicine, The University of Western Australia, Nedlands, WA, Australia
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13
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The Molecular Epidemiology and Clinical Phylogenetics of Rhinoviruses Among Paediatric Cases in Sydney, Australia. Int J Infect Dis 2021; 110:69-74. [PMID: 34174431 PMCID: PMC10161873 DOI: 10.1016/j.ijid.2021.06.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/29/2021] [Accepted: 06/20/2021] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVES Rhinoviruses (RV) represent the most common aetiological agent of all acute respiratory tract infections across all age groups and a significant burden of disease among children. Recent studies have shown that RV-A and RV-C species are associated with increased disease severity. In order to better understand the potential associations between RV species and clinical features among paediatric cases, this study aimed to integrate genetic and epidemiological data using Bayesian phylogenetic methods. METHODS Potential associations between RV species and subtypes, and clinical disease severity using a matched dataset of 52 RV isolates sampled from children (< 18 years) in Sydney, Australia, between 2006 and 2009 were uncovered using epidemiological and phylogenetic methods. RESULTS It was found that RV-C was significantly more likely to be isolated from paediatric cases aged < 2 years compared with RV-A, although no significant differences in recorded symptoms were observed. Significant phylogenetic-trait associations between age and the VP4/VP2 capsid protein phylogeny suggest that age-specific variations in infectivity among subtypes may may be possible. CONCLUSION This study adds to the growing body of epidemiological evidence concerning RV. Improving surveillance and testing for RV, including routine whole genome sequencing, may improve understanding of the varied disease outcomes of RV species and subtypes. Future studies could aim to identify specific genetic markers associated with age-specific infectivity of RV, which could inform treatment practices and public health surveillance of RV.
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14
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Xu-Chen X, Weinstock J, Rastogi D, Koumbourlis A, Nino G. The airway epithelium during infancy and childhood: A complex multicellular immune barrier. Basic review for clinicians. Paediatr Respir Rev 2021; 38:9-15. [PMID: 34030977 PMCID: PMC8859843 DOI: 10.1016/j.prrv.2021.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/13/2021] [Indexed: 12/13/2022]
Abstract
The airway epithelium is a complex multicellular layer that extends from the nasopharynx to the small airways. It functions as an immune respiratory barrier during early life that develops, matures, and regenerates to adapt to the changes in the environment. While airway epithelial abnormalities have been identified in several clinical disorders, there is increasing interest in understanding its basic regulation and structure in humans. Indeed, recent advances in technology (e.g. single-cell analysis and new human airway epithelial cell models) have allowed us to identify additional cellular subtypes and functions that overall have greatly improved our understanding of the airway epithelium during health and disease. In this review we summarize key features of the airway epithelium including: 1) multilayer structure and cell heterogeneity; 2) adaptability to different environmental and developmental stimuli; 3) innate recognition; and 4) orchestration of immune responses. We discuss these features with a translational and clinical prospective focusing on the development of human respiratory immunity, particularly during early life.
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Affiliation(s)
| | | | | | | | - Gustavo Nino
- Division of Pediatric Pulmonary and Sleep Medicine, Children's National Hospital, George Washington University, Washington, D.C, USA.
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15
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Specific Assay of Negative Strand Template to Quantify Intracellular Levels of Rhinovirus Double-Stranded RNA. Methods Protoc 2021; 4:mps4010013. [PMID: 33670292 PMCID: PMC8006032 DOI: 10.3390/mps4010013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 11/16/2022] Open
Abstract
Human rhinovirus infections are a major trigger for acute exacerbations of lower airway diseases, including asthma and chronic obstructive pulmonary disease. Disease exacerbation is thought to be regulated via double-stranded RNA (dsRNA)-mediated signaling of proinflammatory and host defense responses in airway epithelial cells. Despite the central role of dsRNA in regulating host cell responses, no method for the quantitative assessment of dsRNA levels during HRV infections has been developed. Conventional RT-PCR for the negative strand template is not effective as self-priming results in apparent signals, even in the absence of primer during reverse transcription. To avoid these issues, we developed a selective assay for the negative strand template that uses a chimeric primer containing a 5′ non-viral sequence for reverse transcription and a primer using the non-viral sequence during subsequent PCR. We established that this assay avoided issues of self-priming and is strand specific, as it is unaffected even in the presence of a 1000-fold excess of positive strand. Assays in primary human airway epithelial cells showed that negative strand was detectable within 6 h of virus exposure and peaked at 18 h after virus exposure. The temporal pattern of negative strand induction mirrored that of genomic RNA but was always 1000-fold lower than positive strand, indicating that the negative strand levels regulate levels of dsRNA formation. This assay will permit relative quantification of dsRNA during studies of HRV regulation of epithelial cell function.
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