1
|
Zou C, Zan X, Jia Z, Zheng L, Gu Y, Liu F, Han Y, Xu C, Wu A, Zhi Q. Crosstalk between alternative splicing and inflammatory bowel disease: Basic mechanisms, biotechnological progresses and future perspectives. Clin Transl Med 2023; 13:e1479. [PMID: 37983927 PMCID: PMC10659771 DOI: 10.1002/ctm2.1479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 10/07/2023] [Accepted: 11/03/2023] [Indexed: 11/22/2023] Open
Abstract
BACKGROUND Alternative splicing (AS) is an omnipresent regulatory mechanism of gene expression that enables the generation of diverse splice isoforms from a single gene. Recently, AS events have gained considerable momentum in the pathogenesis of inflammatory bowel disease (IBD). METHODS Our review has summarized the complex process of RNA splicing, and firstly highlighted the potential involved molecules that target aberrant splicing events in IBD. The quantitative transcriptome analyses such as microarrays, next-generation sequencing (NGS) for AS events in IBD have been also discussed. RESULTS Available evidence suggests that some abnormal splicing RNAs can lead to multiple intestinal disorders during the onset of IBD as well as the progression to colitis-associated cancer (CAC), including gut microbiota perturbations, intestinal barrier dysfunctions, innate/adaptive immune dysregulations, pro-fibrosis activation and some other risk factors. Moreover, current data show that the advanced technologies, including microarrays and NGS, have been pioneeringly employed to screen the AS candidates and elucidate the potential regulatory mechanisms of IBD. Besides, other biotechnological progresses such as the applications of third-generation sequencing (TGS), single-cell RNA sequencing (scRNA-seq) and spatial transcriptomics (ST), will be desired with great expectations. CONCLUSIONS To our knowledge, the current review is the first one to evaluate the potential regulatory mechanisms of AS events in IBD. The expanding list of aberrantly spliced genes in IBD along with the developed technologies provide us new clues to how IBD develops, and how these important AS events can be explored for future treatment.
Collapse
Affiliation(s)
- Chentao Zou
- Department of GastroenterologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Xinquan Zan
- Department of General SurgeryThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Zhenyu Jia
- Department of GastroenterologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Lu Zheng
- Department of GastroenterologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Yijie Gu
- Department of GastroenterologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Fei Liu
- Department of GastroenterologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Ye Han
- Department of General SurgeryThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Chunfang Xu
- Department of GastroenterologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Airong Wu
- Department of GastroenterologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Qiaoming Zhi
- Department of General SurgeryThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| |
Collapse
|
2
|
Aldridge S. Inhaled corticosteroids for the treatment of COVID-19. Clin Exp Allergy 2023; 53:986-988. [PMID: 37394569 DOI: 10.1111/cea.14368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 06/20/2023] [Indexed: 07/04/2023]
|
3
|
Molina-Jiménez F, Ugalde-Triviño L, Arias-González L, Relaño-Rupérez C, Casabona S, Pérez-Fernández MT, Martín-Domínguez V, Fernández-Pacheco J, Laserna-Mendieta EJ, Muñoz-Hernández P, Arias-Arias Á, Cano A, Muñoz J, Lucendo AJ, Santander C, Majano P. Proteomic analysis of the esophageal epithelium reveals key features of eosinophilic esophagitis pathophysiology. Allergy 2023; 78:2732-2744. [PMID: 37287363 DOI: 10.1111/all.15779] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/27/2023] [Accepted: 05/03/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND Eosinophilic esophagitis (EoE) is a chronic non-IgE-mediated allergic disease of the esophagus. An unbiased proteomics approach was performed to investigate pathophysiological changes in esophageal epithelium. Additionally, an RNAseq-based transcriptomic analysis in paired samples was also carried out. METHODS Total proteins were purified from esophageal endoscopic biopsies in a cohort of adult EoE patients (n = 25) and healthy esophagus controls (n = 10). Differentially accumulated (DA) proteins in EoE patients compared to control tissues were characterized to identify altered biological processes and signaling pathways. Results were also compared with a quantitative proteome dataset of the human esophageal mucosa. Next, results were contrasted with those obtained after RNAseq analysis in paired samples. Finally, we matched up protein expression with two EoE-specific mRNA panels (EDP and Eso-EoE panel). RESULTS A total of 1667 proteins were identified, of which 363 were DA in EoE. RNA sequencing in paired samples identified 1993 differentially expressed (DE) genes. Total RNA and protein levels positively correlated, especially in DE mRNA-proteins pairs. Pathway analysis of these proteins in EoE showed alterations in immune and inflammatory responses for the upregulated proteins, and in epithelial differentiation, cornification and keratinization in those downregulated. Interestingly, a set of DA proteins, including eosinophil-related and secreted proteins, were not detected at the mRNA level. Protein expression positively correlated with EDP and Eso-EoE, and corresponded with the most abundant proteins of the human esophageal proteome. CONCLUSIONS We unraveled for the first time key proteomic features involved in EoE pathogenesis. An integrative analysis of transcriptomic and proteomic datasets provides a deeper insight than transcriptomic alone into understanding complex disease mechanisms.
Collapse
Affiliation(s)
- Francisca Molina-Jiménez
- Molecular Biology Unit, Hospital Universitario de la Princesa, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
| | - Lola Ugalde-Triviño
- Molecular Biology Unit, Hospital Universitario de la Princesa, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
| | - Laura Arias-González
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Department of Gastroenterology, Hospital General de Tomelloso, Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Toledo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
| | - Carlos Relaño-Rupérez
- Molecular Biology Unit, Hospital Universitario de la Princesa, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
| | - Sergio Casabona
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Department of Gastroenterology, Hospital Universitario de La Princesa, Madrid, Spain
| | - María Teresa Pérez-Fernández
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Department of Gastroenterology, Hospital Universitario de La Princesa, Madrid, Spain
| | - Verónica Martín-Domínguez
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Department of Gastroenterology, Hospital Universitario de La Princesa, Madrid, Spain
| | - Jennifer Fernández-Pacheco
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Department of Gastroenterology, Hospital Universitario de La Princesa, Madrid, Spain
| | - Emilio José Laserna-Mendieta
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Department of Gastroenterology, Hospital General de Tomelloso, Ciudad Real, Spain
- Clinical Laboratory, Hospital Universitario de La Princesa, Madrid, Spain
| | | | - Ángel Arias-Arias
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Toledo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
- Research Unit, Hospital General La Mancha Centro, Alcázar de San Juan, Spain
| | - Ainara Cano
- Food Research, AZTI, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, Derio, Spain
| | - Javier Muñoz
- Cell Signalling and Clinical Proteomics Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Alfredo J Lucendo
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Department of Gastroenterology, Hospital General de Tomelloso, Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Toledo, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
| | - Cecilio Santander
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
- Department of Gastroenterology, Hospital Universitario de La Princesa, Madrid, Spain
| | - Pedro Majano
- Molecular Biology Unit, Hospital Universitario de la Princesa, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital Universitario de La Princesa (IIS-Princesa), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
- Department of Cellular Biology, Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
| |
Collapse
|
4
|
Falduto GH, Schwartz DM. Stepping off the beaten path: A multiomic atlas uncovers novel trajectories of T-cell exhaustion. Allergy 2023; 78:2802-2804. [PMID: 37191851 DOI: 10.1111/all.15770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/10/2023] [Accepted: 05/14/2023] [Indexed: 05/17/2023]
Affiliation(s)
- Guido H Falduto
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Daniella M Schwartz
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| |
Collapse
|
5
|
Achten R, Dekkers C, Bakker D, van Luijk C, de Graaf M, van Wijk F, de Boer J, de Bruin-Weller M, Thijs J. Switching from dupilumab to tralokinumab in atopic dermatitis patients with ocular surface disease: Preliminary case series. Clin Exp Allergy 2023; 53:586-589. [PMID: 36924265 DOI: 10.1111/cea.14305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 03/18/2023]
Affiliation(s)
- Roselie Achten
- Department of Dermatology and Allergology, National Expertise Center for Atopic Dermatitis, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Coco Dekkers
- Department of Dermatology and Allergology, National Expertise Center for Atopic Dermatitis, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Daphne Bakker
- Department of Dermatology and Allergology, National Expertise Center for Atopic Dermatitis, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Chantal van Luijk
- Department of Ophthalmology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marlies de Graaf
- Department of Dermatology and Allergology, National Expertise Center for Atopic Dermatitis, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Femke van Wijk
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Joke de Boer
- Department of Ophthalmology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marjolein de Bruin-Weller
- Department of Dermatology and Allergology, National Expertise Center for Atopic Dermatitis, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Judith Thijs
- Department of Dermatology and Allergology, National Expertise Center for Atopic Dermatitis, University Medical Center Utrecht, Utrecht, The Netherlands
| |
Collapse
|
6
|
Brette F, Dos Santos P, Hulot JS. Editorial: Heart failure with preserved ejection fraction: Basic, translational, and clinical research. Front Physiol 2022; 13:1092009. [PMID: 36569766 PMCID: PMC9773824 DOI: 10.3389/fphys.2022.1092009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 11/21/2022] [Indexed: 12/14/2022] Open
Affiliation(s)
- Fabien Brette
- INSERM U1045, Université de Bordeaux, Bordeaux, France,IHU LIRYC, CRCTB U1045, Pessac, France,Phymedexp INSERM U1046, CNRS, Université de Montpellier, CHRU Montpellier, Montpellier, France,*Correspondence: Fabien Brette,
| | - Pierre Dos Santos
- INSERM U1045, Université de Bordeaux, Bordeaux, France,IHU LIRYC, CRCTB U1045, Pessac, France,Heart Failure Unit, Cardiology Department, Centre Hospitalier Universitaire (CHU) Haut-Lévèque, Bordeaux, France
| | - Jean-Sebastien Hulot
- Université de Paris Cité, INSERM, PARCC, Paris, France,CIC1418 and DMU CARTE, AP-HP: Assistance Publique—Hopitaux de Paris, PARCC, Hôpital Européen Georges-Pompidou, Paris, France
| |
Collapse
|
7
|
Ziyab AH, Mukherjee N, Zhang H, Arshad SH, Karmaus W. Sex-specific developmental trajectories of eczema from infancy to age 26 years: A birth cohort study. Clin Exp Allergy 2022; 52:416-425. [PMID: 34854146 PMCID: PMC8866217 DOI: 10.1111/cea.14068] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 11/08/2021] [Accepted: 11/29/2021] [Indexed: 01/04/2023]
Abstract
BACKGROUND Eczema is a common inflammatory skin disease with varying developmental trajectories/patterns that are influenced by different risk factors. The aim of this study was to investigate eczema development from infancy to early adulthood by identifying distinct developmental trajectories that describe disease patterns over time and evaluate the role of prenatal and early-life risk factors. METHODS The Isle of Wight Birth Cohort (n = 1456) was prospectively assessed at birth, 1, 2, 4, 10, 18 and 26 years. In all assessments, eczema was defined as chronic or chronically relapsing itchy dermatitis lasting >6 weeks with characteristic morphology and distribution in the past 12 months. Developmental trajectories of eczema between 1 or 2 and 26 years were identified separately for males and females by applying semiparametric mixture models. Associations were assessed by applying a modified Poisson regression to estimate adjusted risk ratios (aRR) and 95% confidence intervals (CI). RESULTS In both males and females, the following eczema developmental trajectories were identified: unaffected/transient (males: 77.7% vs. females: 73.0%), mid-onset late-resolving (males: 7.8% vs. females: 4.4%), late-onset (males: 5.2% vs. females: 9.5%) and early-onset persistent (males: 9.3% vs. females: 5.4%). In females, an additional trajectory was identified as follows: early-onset early-resolving (7.7%). Among males, filaggrin gene (FLG) variants (aRR = 2.45, 95% CI: 1.34-4.46) and paternal eczema (2.66, 1.39-5.08) were associated with the early-onset persistent trajectory. Among females, maternal eczema (2.84, 1.42-5.70) and high birthweight (2.25, 1.08-4.69) were associated with the early-onset persistent trajectory. CONCLUSIONS Four and five trajectories represented eczema development among males and females, respectively, with different predisposing risk factors. Our results indicate that males and females may experience a different course of eczema.
Collapse
Affiliation(s)
- Ali H. Ziyab
- Department of Community Medicine and Behavioral Sciences, Faculty of Medicine, Kuwait University, Kuwait
| | - Nandini Mukherjee
- Division of Epidemiology, Biostatistics and Environmental Health, School of Public Health, University of Memphis, Memphis, TN, USA
| | - Hongmei Zhang
- Division of Epidemiology, Biostatistics and Environmental Health, School of Public Health, University of Memphis, Memphis, TN, USA
| | - S. Hasan Arshad
- David Hide Asthma and Allergy Research Centre, St Mary’s Hospital, Isle of Wight, UK,Clinical and Experimental Sciences Academic Unit, Faculty of Medicine, University of Southampton, UK
| | - Wilfried Karmaus
- Division of Epidemiology, Biostatistics and Environmental Health, School of Public Health, University of Memphis, Memphis, TN, USA
| |
Collapse
|
8
|
Wu R, Yuan X, Li X, Ma N, Jiang H, Tang H, Xu G, Liu Z, Zhang Z. The bile acid-activated retinoic acid response in dendritic cells is involved in food allergen sensitization. Allergy 2022; 77:483-498. [PMID: 34365653 DOI: 10.1111/all.15039] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 06/13/2021] [Accepted: 06/27/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND Alteration of commensal microbiota is highly correlated with the prevalence of allergic reactions to food in the gastrointestinal tract. The mechanisms by which microbiota modulate food allergen sensitization in the mucosal site are not fully understood. METHODS We generate DCs specific knockout of retinoic acid receptor α (Rara) gene mice (DC KO Rara) to evaluate food sensitization. The bile acid-activated retinoic acid response was evaluated by flow cytometry, real-time RT-PCR and Illumina transcriptome sequencing. The global effect of Abx treatment on BA profiles in the mucosal lymph tissue mLN in mice was examined by UPLC-MS analysis. RESULTS In this study, we demonstrate that depletion of commensal gut bacteria leads to enhanced retinoic acid (RA) signaling in mucosal dendritic cells (DCs). RA signaling in DCs is required for the production of food allergen-specific IgE and IgG1. Antibiotics induced an enlarged bile acid (BA) pool, and dysregulated BA profiles contributed to enhanced RA signaling in mucosal DCs. BA-activated RA signaling promoted DC upregulation of interferon I signature, RA signature, OX40L, and PDL2, which may lead to T helper 2 differentiation of CD4+ T cells. BA-activated RA signaling involved the farnesoid X receptor and RA receptor α (RARa) interaction. Depletion of bile acid reduces food allergen specific IgE and IgG1 levels in mice. CONCLUSION Our research unveils a mechanism of food sensitization modulated by BA-RA signaling in DCs, which suggests a potential new approach for the intervention of food allergic reactions.
Collapse
Affiliation(s)
- Renlan Wu
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- Model Animal Research Center Nanjing University Nanjing China
| | - Xiefang Yuan
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Xingjie Li
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- The School of Basic Medical Sciences Southwest Medical University Sichuan China
| | - Ning Ma
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Hongyu Jiang
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- The School of Basic Medical Sciences Southwest Medical University Sichuan China
| | - Hongmei Tang
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Guofeng Xu
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Zhigang Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen UniversityShenzhen University School of Medicine Shenzhen China
| | - Zongde Zhang
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- The School of Basic Medical Sciences Southwest Medical University Sichuan China
- Model Animal Research Center Nanjing University Nanjing China
| |
Collapse
|
9
|
Subiza J, Cabrera M, Jm CR, Jc C, Mj N. Influence of climate change on airborne pollen concentrations in Madrid, 1979-2018. Clin Exp Allergy 2021; 52:574-577. [PMID: 34918414 DOI: 10.1111/cea.14082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/03/2021] [Accepted: 12/12/2021] [Indexed: 12/12/2022]
Affiliation(s)
| | - Martha Cabrera
- Allergy Department, Hospital Los Madroños, Madrid, Spain
| | - Cárdenas-Rebollo Jm
- Department of Applied Mathematics and Statistics, CEU San Pablo University, Madrid, Spain
| | | | | |
Collapse
|
10
|
Eller E, Stahl Skov P, Baumann K, Hilger C, Ollert M, Bindslev-Jensen C. Delayed reaction in alpha-gal allergy is reflected in serum levels after ingestion of pork kidney, and absorption is dependent on food processing. Clin Exp Allergy 2021; 52:197-200. [PMID: 34779547 DOI: 10.1111/cea.14054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 11/09/2021] [Accepted: 11/12/2021] [Indexed: 12/15/2022]
Affiliation(s)
- Esben Eller
- Department of Dermatology & Allergy Center, Odense Research Center for Anaphylaxis (ORCA), Odense University Hospital, Odense, Denmark
| | - Per Stahl Skov
- Department of Dermatology & Allergy Center, Odense Research Center for Anaphylaxis (ORCA), Odense University Hospital, Odense, Denmark.,RefLab ApS, Copenhagen, Denmark
| | - Katrine Baumann
- RefLab ApS, Copenhagen, Denmark.,Department of Immunology and Microbiology, LEO Foundation Skin Immunology Research Center, University of Copenhagen, Copenhagen, Denmark
| | - Christiane Hilger
- Department of Infection and Immunity, Luxembourg Institute of Health (LIH), Esch-sur-Alzette, Luxembourg
| | - Markus Ollert
- Department of Dermatology & Allergy Center, Odense Research Center for Anaphylaxis (ORCA), Odense University Hospital, Odense, Denmark.,Department of Infection and Immunity, Luxembourg Institute of Health (LIH), Esch-sur-Alzette, Luxembourg
| | - Carsten Bindslev-Jensen
- Department of Dermatology & Allergy Center, Odense Research Center for Anaphylaxis (ORCA), Odense University Hospital, Odense, Denmark
| |
Collapse
|
11
|
Boyle RJ, Shamji MH. Developments in the field of allergy in 2020 through the eyes of Clinical and Experimental Allergy. Clin Exp Allergy 2021; 51:1531-1537. [PMID: 34750898 DOI: 10.1111/cea.14046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 11/28/2022]
Abstract
While 2020 will be remembered for the global coronavirus pandemic, there were also important advances in the field of allergy. In this review article, we summarize key findings reported in Clinical and Experimental Allergy during 2020. We hope this provides readers with an accessible snapshot of the work published in our journal during this time.
Collapse
Affiliation(s)
- Robert J Boyle
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Mohamed H Shamji
- National Heart and Lung Institute, Imperial College London, London, UK.,NIHR Imperial Biomedical Research Centre, London, UK
| |
Collapse
|
12
|
Rodríguez-Vázquez V, Armisén M, Gómez-Rial J, Lamas-Vázquez B, Vidal C. Immunotherapy with Vespula venom for Vespa velutina nigrithorax anaphylaxis: Preliminary clinical and immunological results. Clin Exp Allergy 2021; 52:345-347. [PMID: 34735733 DOI: 10.1111/cea.14039] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/11/2021] [Accepted: 10/28/2021] [Indexed: 12/25/2022]
Affiliation(s)
- Virginia Rodríguez-Vázquez
- Allergy Department, Faculty of Medicine, Complejo Hospitalario Universitario de Santiago, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Margarita Armisén
- Allergy Department, Faculty of Medicine, Complejo Hospitalario Universitario de Santiago, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Jose Gómez-Rial
- Department of Immunology, Complejo Hospitalario Universitario de Santiago, Santiago de Compostela, Spain
| | - Beatriz Lamas-Vázquez
- Department of Immunology, Complejo Hospitalario Universitario de Santiago, Santiago de Compostela, Spain
| | - Carmen Vidal
- Allergy Department, Faculty of Medicine, Complejo Hospitalario Universitario de Santiago, University of Santiago de Compostela, Santiago de Compostela, Spain
| |
Collapse
|
13
|
Mjösberg J, Roncarolo MG, Blom B. Hergen Spits-A legend at the top of his career. Allergy 2021; 76:1925-1928. [PMID: 33751599 DOI: 10.1111/all.14788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Jenny Mjösberg
- Center for Infectious Medicine Department of Medicine Huddinge Karolinska InstitutetKarolinska University Hospital Stockholm Sweden
| | - Maria Grazia Roncarolo
- Center for Definitive and Curative Medicine (CDCM) Stanford University School of Medicine Stanford CA USA
- Institute for Stem Cell Biology and Regenerative Medicine Stanford University School of Medicine Stanford CA USA
| | - Bianca Blom
- Department of Experimental Immunology Amsterdam Institute for Infection and Immunity (AII)Cancer Center AmsterdamAmsterdam UMC, location AMC Amsterdam The Netherlands
| |
Collapse
|
14
|
Perkins TN, Donnell ML, Oury TD. The axis of the receptor for advanced glycation endproducts in asthma and allergic airway disease. Allergy 2021; 76:1350-1366. [PMID: 32976640 DOI: 10.1111/all.14600] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/31/2020] [Accepted: 09/14/2020] [Indexed: 12/11/2022]
Abstract
Asthma is a generalized term that describes a scope of distinct pathologic phenotypes of variable severity, which share a common complication of reversible airflow obstruction. Asthma is estimated to affect almost 400 million people worldwide, and nearly ten percent of asthmatics have what is considered "severe" disease. The majority of moderate to severe asthmatics present with a "type 2-high" (T2-hi) phenotypic signature, which pathologically is driven by the type 2 cytokines Interleukin-(IL)-4, IL-5, and IL-13. However, "type 2-low" (T2-lo) phenotypic signatures are often associated with more severe, steroid-refractory neutrophilic asthma. A wide range of clinical and experimental studies have found that the receptor for advanced glycation endproducts (RAGE) plays a significant role in the pathogenesis of asthma and allergic airway disease (AAD). Current experimental data indicates that RAGE is a critical mediator of the type 2 inflammatory reactions which drive the development of T2-hi AAD. However, clinical studies demonstrate that increased RAGE ligands and signaling strongly correlate with asthma severity, especially in severe neutrophilic asthma. This review presents an overview of the current understandings of RAGE in asthma pathogenesis, its role as a biomarker of disease, and future implications for mechanistic studies, and potential therapeutic intervention strategies.
Collapse
Affiliation(s)
- Timothy N. Perkins
- Department of Pathology University of Pittsburgh School of Medicine Pittsburgh PA USA
| | - Mason L. Donnell
- Department of Pathology University of Pittsburgh School of Medicine Pittsburgh PA USA
| | - Tim D. Oury
- Department of Pathology University of Pittsburgh School of Medicine Pittsburgh PA USA
| |
Collapse
|
15
|
Sio YY, Shi P, Say YH, Chew FT. Functional variants in the chromosome 4q21 locus contribute to allergic rhinitis risk by modulating the expression of N-acylethanolamine acid amidase. Clin Exp Allergy 2021; 52:127-136. [PMID: 33866639 DOI: 10.1111/cea.13883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/23/2021] [Accepted: 04/10/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Previous haplotype-based association studies identified chromosome 4q21 as an allergic rhinitis (AR) susceptibility locus; however, the functional role of 4q21 single nucleotide polymorphisms (SNPs) on AR risk remains unclear. OBJECTIVE To investigate the functional effect of 4q21 SNPs on AR risk by conducting cohort-based functional genomics and genetic association analyses. METHODS The associations between 4q21 SNPs and mRNA expression levels of three 4q21-associated genes (SDAD1, NAAA and CXCL9) in peripheral blood mononuclear cells (PBMCs) were assessed in a Singapore/Malaysia Chinese cohort (n = 291). Exon expression levels of these genes in PBMCs were tested against the tag-SNP genotypes in a Singapore Chinese cohort (n = 30). Serum protein levels of these genes were assessed with tag-SNP genotypes in a Singapore Chinese cohort (n = 193). SNP functions were characterized through luciferase assay. In a Singapore Chinese cohort (n = 1794), we confirmed the associations between functional SNPs and AR. RESULTS Forty SNPs in 4q21 showed significant associations with NAAA (but not SDAD1 or CXCL9) mRNA expression in PBMCs, of which were tagged by two tag-SNPs, rs17001237 and rs2242470. Both tag-SNPs rs2242470 and rs12648687 (a proxy for rs17001237) were also significantly associated with the expression level of NAAA exon 1. Tag-SNP rs12648687 was correlated with serum NAAA level. A four promoter SNPs-haplotype tagged by rs17001237 influenced the NAAA promoter activity in HEK293T cells. Lastly, individuals carrying the risk allele A of rs12648687 exhibited significantly higher AR risk in the Singapore Chinese population. CONCLUSIONS & CLINICAL RELEVANCE The rs17001237 linkage set SNPs in the 4q21 locus are associated with NAAA expression at both gene and protein levels ex vivo, have functional consequences in vitro and contribute to AR susceptibility in our study population. Our findings provided a better understanding of the genetic mechanism that contributes to AR pathogenesis.
Collapse
Affiliation(s)
- Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Ping Shi
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Yee-How Say
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore.,Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR) Kampar Campus, Kampar, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| |
Collapse
|
16
|
Abstract
BACKGROUND A 20% reduction in the FEV1 is routinely used as an end point for methacholine challenge testing (MCT). Measurement of FEV1 is effort dependent, and some patients are not able to perform acceptable and repeatable forced expiration maneuvers. The goal of the present study was to investigate the diagnostic value of airway resistance measurement by forced oscillation technique (FOT), body plethysmography, and interrupter technique compared with the traditionally accepted standard FEV1 measurement in evaluating the responsiveness to methacholine during MCT. METHODS We included in the study adult subjects referred for MCT because of asthma-like symptoms and with normal baseline spirometry. We modified routine MCT protocol by adding the assessment of airway resistance to the measurement of FEV1 at each step of MCT. RESULTS We observed, in the subjects with airway hyper-responsiveness versus those with normal airway responsiveness, a significantly greater percentage change in median (interquartile range) FOT resistance at 10 Hz (25.9% [13.7%-35.4%] vs 16% [15.7%-27.2%]), plethysmographic resistance (70.2% [39.5%-116.3%] vs 37.1% [23.9%-81.9%]), and mean ± SD conductance (-41.3 ± 15.4% vs -29.6 ± 15.9%); and a significantly greater change in mean ± SD FOT reactance at 10 Hz (-0.41 ± 0.48 cm H2O/L/s vs -0.09 ± 0.32 cm H2O/L/s) and at 15 Hz (-0.29 ± 0.2 cm H2O/L/s vs -0.1 ± 0.19 cm H2O/L/s). We also recorded significant differences in airway resistance parameters (FOT resistance at 10 Hz, FOT reactance at 15 Hz, plethysmographic airway resistance, and conductance indices as well as interrupter resistance) in FEV1 non-responders at the onset of respiratory symptoms during MCT compared with baseline. CONCLUSIONS Measurements of airway resistance could possibly be used as an alternative method to spirometry in airway challenge. Significant changes in airway mechanics during MCT are detectable by airway resistance measurement in FEV1 non-responders with methacholine-induced asthma-like symptoms. (ClinicalTrials.gov registration NCT02343419.).
Collapse
Affiliation(s)
- Tomasz Urbankowski
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland.
| | - Tadeusz Przybyłowski
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland
| |
Collapse
|
17
|
Johnsson AK, Choi JH, Rönnberg E, Fuchs D, Kolmert J, Hamberg M, Dahlén B, Wheelock CE, Dahlén SE, Nilsson G. Selective inhibition of prostaglandin D 2 biosynthesis in human mast cells to overcome need for multiple receptor antagonists: Biochemical consequences. Clin Exp Allergy 2021; 51:594-603. [PMID: 33449404 DOI: 10.1111/cea.13831] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/14/2020] [Accepted: 01/05/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND The major mast cell prostanoid PGD2 is targeted for therapy of asthma and other diseases, because the biological actions include bronchoconstriction, vasodilation and regulation of immune cells mediated by three different receptors. It is not known if the alternative to selectively inhibit the biosynthesis of PGD2 affects release of other prostanoids in human mast cells. OBJECTIVES To determine the biochemical consequences of inhibition of the hematopoietic prostaglandin D synthase (hPGDS) PGD2 in human mast cells. METHODS Four human mast cell models, LAD2, cord blood derived mast cells (CBMC), peripheral blood derived mast cells (PBMC) and human lung mast cells (HLMC), were activated by anti-IgE or ionophore A23187. Prostanoids were measured by UPLC-MS/MS. RESULTS All mast cells almost exclusively released PGD2 when activated by anti-IgE or A23187. The biosynthesis was in all four cell types entirely initiated by COX-1. When pharmacologic inhibition of hPGDS abolished formation of PGD2 , PGE2 was detected and release of TXA2 increased. Conversely, when the thromboxane synthase was inhibited, levels of PGD2 increased. Adding exogenous PGH2 confirmed predominant conversion to PGD2 under control conditions, and increased levels of TXB2 and PGE2 when hPGDS was inhibited. However, PGE2 was formed by non-enzymatic degradation. CONCLUSIONS Inhibition of hPGDS effectively blocks mast cell dependent PGD2 formation. The inhibition was associated with redirected use of the intermediate PGH2 and shunting into biosynthesis of TXA2 . However, the levels of TXA2 did not reach those of PGD2 in naïve cells. It remains to determine if this diversion occurs in vivo and has clinical relevance.
Collapse
Affiliation(s)
- Anna-Karin Johnsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden
| | - Jeong-Hee Choi
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden
| | - Elin Rönnberg
- Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden.,Immunology and Allergy Division, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Solna, Sweden
| | - David Fuchs
- Division of Physiological Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Johan Kolmert
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden
| | - Mats Hamberg
- Division of Physiological Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Barbro Dahlén
- Department of Medicine, Clinical Asthma and Allergy Research Laboratory, Karolinska University Hospital, Huddinge, Sweden
| | - Craig E Wheelock
- Division of Physiological Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Sven-Erik Dahlén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden
| | - Gunnar Nilsson
- Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden.,Immunology and Allergy Division, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Solna, Sweden.,Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| |
Collapse
|
18
|
Wang C, Lin W, Wang Y, Fu L. Suppression of Hippo Pathway by Food Allergen Exacerbates Intestinal Epithelia Instability and Facilitates Hypersensitivity. Mol Nutr Food Res 2021; 65:e2000593. [PMID: 33245584 DOI: 10.1002/mnfr.202000593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 10/15/2020] [Indexed: 12/30/2022]
Abstract
SCOPE Hippo signaling is a crucial pathway in innate immune responses, but the relationship between food allergy and Hippo pathway is unknown. The aim of this work is to investigate the regulation of food allergy by Hippo pathway and reveal the molecular mechanisms. METHODS AND RESULTS Two food allergens tropomyosin and ovalbumin are used to challenge a mouse model and CMT93 intestinal epithelia cell model. The allergic responses and the activation of Hippo pathway are tested in these models. In the mouse model, both allergens trigged significant allergic responses, and Hippo pathway is suppressed after allergen challenge. In CMT93, both allergens upregulate the expression of allergic cytokines thymic stromal lymphopoietin, interleukin (IL)-25, and IL-33. In TAZ KD CMT93, the Hippo pathway is blocked, and the expression of allergenic cytokines are also suppressed. CONCLUSIONS Both in vivo and in vitro data demonstrate that the two food allergens suppressed Hippo pathway by downregulating TAZ expression, resulting in intestinal epithelia instability, and finally leading to hypersensitivity reactions. These findings provide potential therapeutic targets and molecular markers for food allergy, and provide dietary guidelines for allergenic individuals.
Collapse
Affiliation(s)
- Chong Wang
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, P. R. China
| | - Wanglei Lin
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, P. R. China
| | - Yanbo Wang
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, P. R. China
| | - Linglin Fu
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, P. R. China
| |
Collapse
|
19
|
Roberts G, Almqvist C, Boyle R, Crane J, Hogan SP, Marsland B, Saglani S, Woodfolk JA. Developments allergy in 2019 through the eyes of clinical and experimental allergy, part I mechanisms. Clin Exp Allergy 2020; 50:1294-1301. [PMID: 33283368 DOI: 10.1111/cea.13777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In the first of two linked articles, we describe the development in the mechanisms underlying allergy as described by Clinical & Experimental Allergy and other journals in 2019. Experimental models of allergic disease, basic mechanisms, clinical mechanisms and allergens are all covered.
Collapse
Affiliation(s)
- Graham Roberts
- Clinical and Experimental Sciences and Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK.,NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,The David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Isle of Wight, UK
| | - C Almqvist
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - R Boyle
- Department of Paediatrics, Imperial College London, London, UK
| | - J Crane
- Department of Medicine, University of Otago Wellington, Wellington, New Zealand
| | - S P Hogan
- Department of Pathology, Mary H Weiser Food Allergy Center, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
| | - B Marsland
- Department of Immunology and Pathology, Monash University, Melbourne, Vic., Australia
| | - S Saglani
- National Heart & Lung Institute, Imperial College London, London, UK
| | - J A Woodfolk
- Division of Asthma, Allergy and Immunology, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, USA
| |
Collapse
|
20
|
Togbe D, Benmerzoug S, Jacobs M, Ryffel B, Quesniaux VFJ. Silica-related diseases in the modern world: A role for self-DNA sensing in lung inflammatory diseases. Allergy 2020; 75:3009-3010. [PMID: 33155702 DOI: 10.1111/all.14463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/09/2020] [Accepted: 06/13/2020] [Indexed: 12/28/2022]
Affiliation(s)
| | - Sulayman Benmerzoug
- Experimental and Molecular Immunology and Neurogenetics UMR7355 CNRS and University of Orleans Lausanne France
- Department of Urology Urology Research Unit CHUV Lausanne Switzerland
| | - Muazzam Jacobs
- Institute of Infectious Disease and Molecular Medicine University of Cape Town Cape Town South Africa
| | - Bernhard Ryffel
- Artimmune SAS Orleans‐Cedex 2 France
- Institute of Infectious Disease and Molecular Medicine University of Cape Town Cape Town South Africa
| | - Valerie F. J. Quesniaux
- Experimental and Molecular Immunology and Neurogenetics UMR7355 CNRS and University of Orleans Lausanne France
| |
Collapse
|
21
|
Ariano A, D'Apolito M, Bova M, Bellanti F, Loffredo S, D'Andrea G, Intrieri M, Petraroli A, Maffione AB, Spadaro G, Santacroce R, Margaglione M. A myoferlin gain-of-function variant associates with a new type of hereditary angioedema. Allergy 2020; 75:2989-2992. [PMID: 32542751 DOI: 10.1111/all.14454] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/22/2020] [Accepted: 06/07/2020] [Indexed: 02/05/2023]
Affiliation(s)
- Anastasia Ariano
- Medical Genetics, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Maria D'Apolito
- Medical Genetics, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Maria Bova
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples "Federico II", Naples, Italy
| | - Francesco Bellanti
- Department of Medical and Surgical Sciences, C.U.R.E. Centre for Liver Diseases Research and Treatment, Institute of Internal Medicine, Foggia, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
- Institute of Experimental Endocrinology and Oncology "Gaetano Salvatore", National Research Council, Naples, Italy
| | - Giovanna D'Andrea
- Medical Genetics, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Mariano Intrieri
- Department of Medicine and Health Sciences "V. Tiberio, University of Molise, Campobasso, Italy
| | - Angelica Petraroli
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples "Federico II", Naples, Italy
| | - Angela Bruna Maffione
- Human Anatomy, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Giuseppe Spadaro
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples "Federico II", Naples, Italy
| | - Rosa Santacroce
- Medical Genetics, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Maurizio Margaglione
- Medical Genetics, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| |
Collapse
|
22
|
Felix MMR, Kuschnir FC. Arginase inhibitors: An alternative in treatment of obese asthma? Allergy 2020; 75:1525-1526. [PMID: 32470219 DOI: 10.1111/all.14136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/13/2019] [Accepted: 11/23/2019] [Indexed: 12/31/2022]
|
23
|
Davies ER, Perotin JM, Kelly JFC, Djukanovic R, Davies DE, Haitchi HM. Involvement of the epidermal growth factor receptor in IL-13-mediated corticosteroid-resistant airway inflammation. Clin Exp Allergy 2020; 50:672-686. [PMID: 32096290 PMCID: PMC7317751 DOI: 10.1111/cea.13591] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/12/2020] [Accepted: 02/19/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Effective treatment for severe asthma is a significant unmet need. While eosinophilic inflammation caused by type 2 cytokines is responsive to corticosteroid and biologic therapies, many severe asthmatics exhibit corticosteroid-unresponsive mixed granulocytic inflammation. OBJECTIVE Here, we tested the hypothesis that the pro-allergic cytokine, IL-13, can drive both corticosteroid-sensitive and corticosteroid-resistant responses. RESULTS By integration of in vivo and in vitro models of IL-13-driven inflammation, we identify a role for the epidermal growth factor receptor (EGFR/ERBB1) as a mediator of corticosteroid-unresponsive inflammation and bronchial hyperresponsiveness driven by IL-13. Topological data analysis using human epithelial transcriptomic data from the U-BIOPRED cohort identified severe asthma groups with features consistent with the presence of IL-13 and EGFR/ERBB activation, with involvement of distinct EGFR ligands. Our data suggest that IL-13 may play a dual role in severe asthma: on the one hand driving pathologic corticosteroid-refractory mixed granulocytic inflammation, but on the other hand underpinning beneficial epithelial repair responses, which may confound responses in clinical trials. CONCLUSION AND CLINICAL RELEVANCE Detailed dissection of those molecular pathways that are downstream of IL-13 and utilize the ERBB receptor and ligand family to drive corticosteroid-refractory inflammation should enhance the development of new treatments that target this sub-phenotype(s) of severe asthma, where there is an unmet need.
Collapse
Affiliation(s)
- Elizabeth R Davies
- Brooke Laboratories, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Jeanne-Marie Perotin
- Brooke Laboratories, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK.,National Institute for Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Joanne F C Kelly
- Brooke Laboratories, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Ratko Djukanovic
- Brooke Laboratories, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK.,National Institute for Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Donna E Davies
- Brooke Laboratories, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK.,National Institute for Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Hans Michael Haitchi
- Brooke Laboratories, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK.,National Institute for Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,Institute for Life Sciences, University of Southampton, Southampton, UK
| | | |
Collapse
|
24
|
Abstract
There is increasing interest in helminth parasite modulation of the immune system, both from the fundamental perspective of the "arms race" between host and parasite, and equally importantly, to understand if parasites offer new pathways to abate and control untoward immune responses in humans. This article reviews the epidemiological and experimental evidence for parasite down-regulation of host immunity and immunopathology, in allergy and other immune disorders, and recent progress towards defining the mechanisms and molecular mediators which parasites exploit in order to modulate their host. Among these are novel products that interfere with epithelial cell alarmins, dendritic cell activation, macrophage function and T-cell responsiveness through the promotion of an immunoregulatory environment. These modulatory effects assist parasites to establish and survive, while dampening immune reactivity to allergens, autoantigens and microbiome determinants.
Collapse
Affiliation(s)
- Rick M. Maizels
- Wellcome Centre for Integrative Parasitology, Institute of Infection, Immunology and Inflammation University of Glasgow Glasgow UK
| |
Collapse
|
25
|
Comberiati P, Spahn JD, Paull K, Faino A, Cherniack R, Covar RA. Lung mechanical properties distinguish children with asthma with normal and diminished lung function. Clin Exp Allergy 2020; 50:453-462. [PMID: 31955479 DOI: 10.1111/cea.13573] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 12/24/2019] [Accepted: 01/08/2020] [Indexed: 01/18/2023]
Abstract
BACKGROUND Children with asthma, even those with severe persistent disease, can have forced expiratory volume in 1 second (FEV1 ) values ≥100% of predicted, while others have diminished FEV1 . OBJECTIVE We sought to characterize the lung mechanical properties underlying these two asthma phenotypes and the mechanisms explaining the paradox of severe asthmatic children, whom when clinically stable can have an FEV1 >100% of predicted, but during an acute bronchospastic episode can experience a life-threatening asthma event. METHODS Lung mechanics were evaluated in three groups of children: asthmatics with FEV1 ≥100% (HFEV1 ; n = 13), asthmatics with FEV1 ≤80% (LFEV1 ; n = 14) and non-asthmatic controls (n = 10). A linear mixed model was used to examine the relationship between volume and static transpulmonary pressures obtained at total lung capacity (TLC); actual TLC %of predicted and flow; and static transpulmonary pressure and flow. RESULTS HFEV1 asthmatics had larger airways (FEV1 z-scores 1.12 vs -2.37; P < .05), greater lung volumes (mean % of predicted TLC 134.8% vs 109.6%; P < .05) and lower airway resistance (mean %of predicted Raw 101.9% vs 199.9%; P < .05) compared to the LFEV1 group. Moreover, HFEV1 asthmatics had significantly reduced elastic recoil pressure (pressure-volume curve shifted upward and to the left) and higher lung compliance (0.21 vs 00.9 L/cm H2 O; P < .05) compared to the LFEV1 group. The pressure-flow curves revealed the LFEV1 group to have significantly increased resistance to flow in the upstream segment of the airways at all lung volumes studied compared to HFEV1 . CONCLUSION AND CLINICAL RELEVANCE HFEV1 asthmatic children display distinct lung mechanical proprieties compared to their LFEV1 asthmatic peers. With loss of elastic recoil pressure, the HFEV1 group could generate normal FEV1 due to proportionally enlarged airways and reduced airway resistance, while airflow limitation in the LFEV1 is due to increased airway resistance. Loss of elastic recoil and interdependence during acute bronchoconstriction episodes may predispose the HFEV1 group to catastrophic reductions in airflow.
Collapse
Affiliation(s)
- Pasquale Comberiati
- Section of Pediatrics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.,Department of Clinical Immunology and Allergology, IM Sechenov First Moscow State Medical University, Moscow, Russia
| | - Joseph D Spahn
- The Division of Allergy-Clinical Immunology, National Jewish Health Denver, CO, USA.,Division of Clinical Pharmacology, National Jewish Health Denver, CO, USA.,Division of Allergy-Clinical Immunology, Department of Pediatrics, Children's Hospital Colorado, Aurora, CO, USA
| | - Keith Paull
- The Division of Allergy-Clinical Immunology, National Jewish Health Denver, CO, USA
| | - Anna Faino
- Division of Biostatistics and Bioinformatics, National Jewish Health Denver, CO, USA
| | | | - Ronina A Covar
- The Division of Allergy-Clinical Immunology, National Jewish Health Denver, CO, USA.,Division of Clinical Pharmacology, National Jewish Health Denver, CO, USA
| |
Collapse
|
26
|
Sangaphunchai P, Todd I, Fairclough LC. Extracellular vesicles and asthma: A review of the literature. Clin Exp Allergy 2020; 50:291-307. [PMID: 31925972 DOI: 10.1111/cea.13562] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 12/22/2019] [Accepted: 12/28/2019] [Indexed: 12/12/2022]
Abstract
Asthma is a chronic, recurrent and incurable allergy-related respiratory disease characterized by inflammation, bronchial hyperresponsiveness and narrowing of the airways. Extracellular vesicles (EVs) are a universal feature of cellular function and can be detected in different bodily fluids. Recent evidence has shown the possibility of using EVs in understanding the pathogenesis of asthma, including their potential as diagnostic and therapeutic tools. Studies have reported that EVs released from key cells involved in asthma can induce priming and activation of other asthma-associated cells. A literature review was conducted on all current research regarding the role and function of EVs in the pathogenesis of asthma via the PRISMA statement method. An electronic search was performed using EMBASE and PubMed through to November 2018. The EMBASE search returned 76 papers, while the PubMed search returned 211 papers. Following duplicate removal, titles and abstracts were screened for eligibility with a total of 34 studies included in the final qualitative analysis. The review found evidence of association between the presence of EVs and physiological changes characteristic of asthma, suggesting that EVs are involved in the pathogenesis, with the weight of evidence presently favouring deleterious effects of EVs in asthma. Numerous studies highlighted differences in exosomal contents between EVs of healthy and asthmatic individuals, which could be employed as potential diagnostic markers. In some circumstances, EVs were also found to be suppressive to disease, but more often promote inflammation and airway remodelling. In conclusion, EVs hold immense potential in understanding the pathophysiology of asthma, and as diagnostic and therapeutic markers. While more research is needed for definitive conclusions and their application in medical practice, the literature presented in this review should encourage further research and discovery within the field of EVs and asthma.
Collapse
Affiliation(s)
| | - Ian Todd
- School of Life Sciences, The University of Nottingham, Nottingham, UK
| | - Lucy C Fairclough
- School of Life Sciences, The University of Nottingham, Nottingham, UK
| |
Collapse
|
27
|
Eickmeier O, Zissler UM, Wittschorek J, Unger F, Schmitt-Grohé S, Schubert R, Herrmann E, Zielen S. Clinical relevance of Aspergillus fumigatus sensitization in cystic fibrosis. Clin Exp Allergy 2020; 50:325-333. [PMID: 31886564 DOI: 10.1111/cea.13557] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 12/04/2019] [Accepted: 12/12/2019] [Indexed: 12/12/2022]
Abstract
RATIONALE The clinical relevance of sensitization to Aspergillus (A) fumigatus in cystic fibrosis (CF) is unclear. Some researchers propose that specific A fumigatus IgE is an innocent bystander, whereas others describe it as the major cause of TH-2-driven asthma-like disease. OBJECTIVES Lung function parameters in mild CF patients may be different in patients with and without A fumigatus sensitization. We aimed to ascertain whether allergen exposure to A fumigatus by bronchial allergen provocation (BAP) induces TH-2 inflammation comparable to an asthma-like disease. METHODS A total of 35 patients, aged 14.8 ± 8.5 years, and 20 healthy controls were investigated prospectively. The patients were divided into two groups: group 1 (n = 18): specific (s)IgE negative, and group 2 (n = 17): sIgE positive (≥0.7 KU/L) for A fumigatus. Lung function, exhaled NO, and induced sputum were analysed. All sensitized patients with an FEV1 > 75% (n = 13) underwent BAP with A fumigatus, and cell counts, and the expression of IL-5, IL-13, INF-γ, and IL-8 as well as transcription factors T-bet, GATA-3, and FoxP3, were measured. RESULTS Lung function parameters decreased significantly compared to controls, but not within the CF patient group. After BAP, 8 of 13 patients (61%) had a significant asthmatic response and increased eNO 24 hours later. In addition, marked TH-2-mediated inflammation involving eosinophils, IL-5, IL-13, and FoxP3 became apparent in induced sputum cells. CONCLUSION Our study demonstrated the clinical relevance of A fumigatus for the majority of sensitized CF patients. A distinct IgE/TH-2-dominated inflammation was found in induced sputum after A fumigatus exposure.
Collapse
Affiliation(s)
- Olaf Eickmeier
- Department for Children and Adolescents, Division of Allergology, Pulmonology and Cystic fibrosis, Goethe University, Frankfurt, Germany
| | - Ulrich M Zissler
- Center of Allergy & Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
| | - Julia Wittschorek
- Department for Children and Adolescents, Division of Allergology, Pulmonology and Cystic fibrosis, Goethe University, Frankfurt, Germany
| | - Frederike Unger
- Department for Children and Adolescents, Division of Allergology, Pulmonology and Cystic fibrosis, Goethe University, Frankfurt, Germany
| | - Sabina Schmitt-Grohé
- Department for Children and Adolescents, Division of Allergology, Pulmonology and Cystic fibrosis, Goethe University, Frankfurt, Germany
| | - Ralf Schubert
- Department for Children and Adolescents, Division of Allergology, Pulmonology and Cystic fibrosis, Goethe University, Frankfurt, Germany
| | - Eva Herrmann
- Institute of Biostatistics and Mathematical Modeling, Goethe University, Frankfurt, Germany
| | - Stefan Zielen
- Department for Children and Adolescents, Division of Allergology, Pulmonology and Cystic fibrosis, Goethe University, Frankfurt, Germany
| |
Collapse
|
28
|
Sio YY, Matta SA, Ng YT, Chew FT. Epistasis between phenylethanolamine N-methyltransferase and β2-adrenergic receptor influences extracellular epinephrine level and associates with the susceptibility to allergic asthma. Clin Exp Allergy 2020; 50:352-363. [PMID: 31855300 DOI: 10.1111/cea.13552] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 12/03/2019] [Accepted: 12/08/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Reduced extracellular epinephrine level often associates with asthma-related symptoms; however, the correlation between asthma and genetic variants in genes participating in the epinephrine signalling pathway remains unclear. OBJECTIVE To characterize the functions of single nucleotide polymorphisms (SNPs) in phenylethanolamine N-methyltransferase (PNMT) and β2-adrenergic receptor (ADRB2), and to study the effects, including both direct and epistatic, of these SNPs on serum epinephrine level and asthma susceptibility. METHODS Single nucleotide polymorphisms functions were characterized through in vitro luciferase assay. ADRB2 gene expression level in peripheral blood mononuclear cell (PBMC) was measured by transcriptome sequencing and expression microarray on two separate Asian cohorts (NUS-UTAR, n = 278 and NUS-TA, n = 58). Serum epinephrine level was assessed on a Singapore Chinese cohort (NUS-SH, n = 314) with 155 asthmatic and 159 non-asthmatic subjects. A separate Singapore Chinese cohort (NUS-G, n = 3009) was genotyped to show disease association (direct and epistatic effect) of functional SNPs in PNMT and ADRB2. RESULTS Reduced serum epinephrine level was associated with increased asthma risk in Singapore Chinese. The minor allele of rs876493 was shown to increase PNMT promoter activity and reduce asthma risk. Multiple SNPs in ADRB2 forms a haplotype that was associated with the differential promoter activity of this gene. In this haplotype, rs11168070 was associated directly with ADRB2 expression in PBMCs. Both minor alleles from rs876493 and rs11168070 contribute synergistically to reduce asthma risk and increase serum epinephrine level. CONCLUSION AND CLINICAL RELEVANCE Epistatic interaction between genetic variants from PNMT (rs876493) and ADRB2 (rs11168070) is associated with serum epinephrine level and the susceptibility of asthma. Our findings improved the current understanding of the genetic basis of this disease, while genotypic states of these SNPs may serve as potential biomarkers to predict susceptibility to the disease.
Collapse
Affiliation(s)
- Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
| | - Yu Ting Ng
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
| |
Collapse
|
29
|
Mayorga C, Fernandez TD, Montañez MI, Moreno E, Torres MJ. Recent developments and highlights in drug hypersensitivity. Allergy 2019; 74:2368-2381. [PMID: 31557314 DOI: 10.1111/all.14061] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 12/12/2022]
Abstract
Drug hypersensitivity reactions (DHRs) are nowadays the third cause of allergy after rhinitis and asthma with a significant increase in prevalence in both adults and paediatric population with new drugs included as culprit. For this, DHRs represent not only a health problem but also a significant financial burden for affected individuals and health systems. Mislabelling DHRs is showing to be a relevant problem for both, false label of drug allergic and false label of nonallergic. All this reinforces the need to improve accurate diagnostic approaches that allow an appropriate management. Moreover, there is a need for training both, nonallergist stakeholders and patients to improve the reaction identification and therefore decrease the mislabelling. The use of allergy cards has shown to be relevant to avoid the induction of DHRs due to the prescription of wrong medication. Recent developments over the last 2 years and highlights about risk factors, diagnostic approaches, mechanisms involved as well as prevention actions, and management have been reviewed. In these papers, it has been outlined the need for correct diagnosis and de-labelling of patients previously false-reported as allergic, which will improve the management and treatment of patients with DHRs.
Collapse
Affiliation(s)
- Cristobalina Mayorga
- Allergy Research Group Instituto de Investigación Biomédica de Málaga‐IBIMA‐ARADyAL Málaga Spain
- Allergy Unit Hospital Regional Universitario de Málaga‐ARADyAL Málaga Spain
- Andalusian Center for Nanomedicine and Biotechnology‐BIONAND Málaga Spain
| | - Tahia D. Fernandez
- Allergy Research Group Instituto de Investigación Biomédica de Málaga‐IBIMA‐ARADyAL Málaga Spain
| | - Maria Isabel Montañez
- Allergy Research Group Instituto de Investigación Biomédica de Málaga‐IBIMA‐ARADyAL Málaga Spain
- Andalusian Center for Nanomedicine and Biotechnology‐BIONAND Málaga Spain
| | - Esther Moreno
- Allergy Unit Hospital Universitario de Salamanca‐ARADyAL IBSAL Salamanca Spain
| | - María José Torres
- Allergy Research Group Instituto de Investigación Biomédica de Málaga‐IBIMA‐ARADyAL Málaga Spain
- Allergy Unit Hospital Regional Universitario de Málaga‐ARADyAL Málaga Spain
- Andalusian Center for Nanomedicine and Biotechnology‐BIONAND Málaga Spain
- Universidad de Málaga Málaga Spain
| |
Collapse
|
30
|
Sbihi H, Boutin RCT, Cutler C, Suen M, Finlay BB, Turvey SE. Thinking bigger: How early-life environmental exposures shape the gut microbiome and influence the development of asthma and allergic disease. Allergy 2019; 74:2103-2115. [PMID: 30964945 DOI: 10.1111/all.13812] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 02/27/2019] [Accepted: 03/22/2019] [Indexed: 02/06/2023]
Abstract
Imbalance, or dysbiosis, of the gut microbiome of infants has been linked to an increased risk of asthma and allergic diseases. Most studies to date have provided a wealth of data showing correlations between early-life risk factors for disease and changes in the structure of the gut microbiome that disrupt normal immunoregulation. These studies have typically focused on one specific risk factor, such as mode of delivery or early-life antibiotic use. Such "micro-level" exposures have a considerable impact on affected individuals but not necessarily the whole population. In this review, we place these mechanisms under a larger lens that takes into account the influence of upstream "macro-level" environmental factors such as air pollution and the built environment. While these exposures likely have a smaller impact on the microbiome at an individual level, their ubiquitous nature confers them with a large influence at the population level. We focus on features of the indoor and outdoor human-made environment, their microbiomes and the research challenges inherent in integrating the built environment microbiomes with the early-life gut microbiome. We argue that an exposome perspective integrating internal and external microbiomes with macro-level environmental factors can provide a more comprehensive framework to define how environmental exposures can shape the gut microbiome and influence the development of allergic disease.
Collapse
Affiliation(s)
- Hind Sbihi
- Department of Pediatrics, British Columbia Children’s Hospital The University of British Columbia Vancouver British Columbia Canada
| | - Rozlyn CT. Boutin
- Department of Microbiology and Immunology, Michael Smith Laboratories The University of British Columbia Vancouver British Columbia Canada
| | - Chelsea Cutler
- Department of Pediatrics, British Columbia Children’s Hospital The University of British Columbia Vancouver British Columbia Canada
| | - Mandy Suen
- Department of Pediatrics, British Columbia Children’s Hospital The University of British Columbia Vancouver British Columbia Canada
| | - B. Brett Finlay
- Department of Microbiology and Immunology, Michael Smith Laboratories The University of British Columbia Vancouver British Columbia Canada
| | - Stuart E. Turvey
- Department of Pediatrics, British Columbia Children’s Hospital The University of British Columbia Vancouver British Columbia Canada
| |
Collapse
|
31
|
Feuerecker M, Crucian BE, Quintens R, Buchheim J, Salam AP, Rybka A, Moreels M, Strewe C, Stowe R, Mehta S, Schelling G, Thiel M, Baatout S, Sams C, Choukèr A. Immune sensitization during 1 year in the Antarctic high-altitude Concordia Environment. Allergy 2019; 74:64-77. [PMID: 29978486 DOI: 10.1111/all.13545] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 12/25/2022]
Abstract
BACKGROUND Antarctica is a challenging environment for humans. It serves as a spaceflight ground analog, reflecting some conditions of long-duration exploration class space missions. The French-Italian Concordia station in interior Antarctica is a high-fidelity analog, located 1000 km from the coast, at an altitude of 3232 m. The aim of this field study was to characterize the extent, dynamics, and key mechanisms of the immune adaptation in humans overwintering at Concordia for 1 year. METHODS This study assessed immune functions in fourteen crewmembers. Quantitative and phenotypic analyses from human blood were performed using onsite flow cytometry together with specific tests on receptor-dependent and receptor-independent functional innate and adaptive immune responses. Transcriptome analyses and quantitative identification of key response genes were assessed. RESULTS Dynamic immune activation and a two-step escalation/activation pattern were observed. The early phase was characterized by moderately sensitized global immune responses, while after 3-4 months, immune responses were highly upregulated. The cytokine responses to an ex vivo stimulation were markedly raised above baseline levels. These functional observations were reflected at the gene transcriptional level in particular through the modulation of hypoxia-driven pathways. CONCLUSIONS This study revealed unique insights into the extent, dynamics, and genetics of immune dysfunctions in humans exposed for 1 year to the Antarctic environment at the Concordia station. The scale of immune function was imbalanced toward a sensitizing of inflammatory pathways.
Collapse
Affiliation(s)
- Matthias Feuerecker
- Department of Anaesthesiology Laboratory of Translational Research “Stress and Immunity” University Hospital LMU Munich Munich Germany
| | | | - Roel Quintens
- Radiobiology Unit Belgian Nuclear Research Centre (SCK CEN) Mol Belgium
| | - Judith‐Irina Buchheim
- Department of Anaesthesiology Laboratory of Translational Research “Stress and Immunity” University Hospital LMU Munich Munich Germany
| | | | - Ales Rybka
- IPEV/PNRA‐ESA Antarctic Program Dome C Antarctica
| | - Marjan Moreels
- Radiobiology Unit Belgian Nuclear Research Centre (SCK CEN) Mol Belgium
| | - Claudia Strewe
- Department of Anaesthesiology Laboratory of Translational Research “Stress and Immunity” University Hospital LMU Munich Munich Germany
| | | | | | - Gustav Schelling
- Department of Anaesthesiology Laboratory of Translational Research “Stress and Immunity” University Hospital LMU Munich Munich Germany
| | - Manfred Thiel
- Department of Anaesthesiology and Intensive Care Medical Faculty at Mannheim University of Heidelberg Mannheim Germany
| | - Sarah Baatout
- Radiobiology Unit Belgian Nuclear Research Centre (SCK CEN) Mol Belgium
| | | | - Alexander Choukèr
- Department of Anaesthesiology Laboratory of Translational Research “Stress and Immunity” University Hospital LMU Munich Munich Germany
| |
Collapse
|
32
|
Panariti A, Baglole CJ, Sanchez V, Eidelman DH, Hussain S, Olivenstein R, Martin JG, Hamid Q. Interleukin-17A and vascular remodelling in severe asthma; lack of evidence for a direct role. Clin Exp Allergy 2018; 48:365-378. [PMID: 29337379 DOI: 10.1111/cea.13093] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 11/10/2017] [Accepted: 12/11/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Bronchial vascular remodelling may contribute to the severity of airway narrowing through mucosal congestion. Interleukin (IL)-17A is associated with the most severe asthmatic phenotype but whether it might contribute to vascular remodelling is uncertain. OBJECTIVE To assess vascular remodelling in severe asthma and whether IL-17A directly or indirectly may cause endothelial cell activation and angiogenesis. METHODS Bronchial vascularization was quantified in asthmatic subjects, COPD and healthy subjects together with the number of IL-17A+ cells as well as the concentration of angiogenic factors in the sputum. The effect of IL-17A on in vitro angiogenesis, cell migration and endothelial permeability was assessed directly on primary human lung microvascular endothelial cells (HMVEC-L) or indirectly with conditioned medium derived from normal bronchial epithelial cells (NHBEC), fibroblasts (NHBF) and airway smooth muscle cells (ASMC) after IL-17A stimulation. RESULTS Severe asthmatics have increased vascularity compared to the other groups, which correlates positively with the concentrations of angiogenic factors in sputum. Interestingly, we demonstrated that increased bronchial vascularity correlates positively with the number of subepithelial IL-17A+ cells. However IL-17A had no direct effect on HMVEC-L function but it enhanced endothelial tube formation and cell migration through the production of angiogenic factors by NHBE and ASMC. CONCLUSIONS & CLINICAL RELEVANCE Our results shed light on the role of IL-17A in vascular remodelling, most likely through stimulating the synthesis of other angiogenic factors. Knowledge of these pathways may aid in the identification of new therapeutic targets.
Collapse
Affiliation(s)
- A Panariti
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - C J Baglole
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - V Sanchez
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - D H Eidelman
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - S Hussain
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - R Olivenstein
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - J G Martin
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| | - Q Hamid
- Research Institute of the McGill University Health Centre, Meakins-Christie Laboratories, Montreal, QC, Canada
| |
Collapse
|
33
|
Dzoro S, Mittermann I, Resch‐Marat Y, Vrtala S, Nehr M, Hirschl AM, Wikberg G, Lundeberg L, Johansson C, Scheynius A, Valenta R. House dust mites as potential carriers for IgE sensitization to bacterial antigens. Allergy 2018; 73:115-124. [PMID: 28741705 PMCID: PMC5763376 DOI: 10.1111/all.13260] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2017] [Indexed: 01/14/2023]
Abstract
Background IgE reactivity to antigens from Gram‐positive and Gram‐negative bacteria is common in patients suffering from respiratory and skin manifestations of allergy, but the routes and mechanisms of sensitization are not fully understood. The analysis of the genome, transcriptome and microbiome of house dust mites (HDM) has shown that Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) species are abundant bacteria within the HDM microbiome. Therefore, our aim was to investigate whether HDM are carriers of bacterial antigens leading to IgE sensitization in patients suffering from atopic dermatitis. Methods Plasma samples from patients with AD (n = 179) were analysed for IgE reactivity to a comprehensive panel of microarrayed HDM allergen molecules and to S. aureus and E. coli by IgE immunoblotting. Antibodies specific for S. aureus and E. coli antigens were tested for reactivity to nitrocellulose‐blotted extract from purified HDM bodies, and the IgE‐reactive antigens were detected by IgE immunoblot inhibition experiments. IgE antibodies directed to bacterial antigens in HDM were quantified by IgE ImmunoCAP™ inhibition experiments. Results IgE reactivity to bacterial antigens was significantly more frequent in patients with AD sensitized to HDM than in AD patients without HDM sensitization. S. aureus and E. coli antigens were detected in immune‐blotted HDM extract, and the presence of IgE‐reactive antigens in HDM was demonstrated by qualitative and quantitative IgE inhibition experiments. Conclusion House dust mites (HDM) may serve as carriers of bacteria responsible for the induction of IgE sensitization to microbial antigens.
Collapse
Affiliation(s)
- S. Dzoro
- Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - I. Mittermann
- Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Y. Resch‐Marat
- Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - S. Vrtala
- Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - M. Nehr
- Division of Clinical Microbiology Clinical Institute of Laboratory Medicine Medical University of Vienna Vienna Austria
| | - A. M. Hirschl
- Division of Clinical Microbiology Clinical Institute of Laboratory Medicine Medical University of Vienna Vienna Austria
| | - G. Wikberg
- Dermatology and Venereology Unit Karolinska University Hospital StockholmSweden
| | - L. Lundeberg
- Dermatology and Venereology Unit Karolinska University Hospital StockholmSweden
| | - C. Johansson
- Department of Clinical Science and Education Karolinska Institutet StockholmSweden
- Sachs’ Children and Youth Hospital Södersjukhuset Stockholm Sweden
| | - A. Scheynius
- Department of Clinical Science and Education Karolinska Institutet StockholmSweden
- Sachs’ Children and Youth Hospital Södersjukhuset Stockholm Sweden
| | - R. Valenta
- Department of Pathophysiology and Allergy Research Centre for Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| |
Collapse
|
34
|
Liu YP, Rajamanikham V, Baron M, Patel S, Mathur SK, Schwantes EA, Ober C, Jackson DJ, Gern JE, Lemanske RF, Smith JA. Association of ORMDL3 with rhinovirus-induced endoplasmic reticulum stress and type I Interferon responses in human leucocytes. Clin Exp Allergy 2017; 47:371-382. [PMID: 28192616 DOI: 10.1111/cea.12903] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 01/11/2017] [Accepted: 02/06/2017] [Indexed: 02/01/2023]
Abstract
BACKGROUND Children with risk alleles at the 17q21 genetic locus who wheeze during rhinovirus illnesses have a greatly increased likelihood of developing childhood asthma. In mice, overexpression of the 17q21 gene ORMDL3 leads to airway remodelling and hyperresponsiveness. However, the mechanisms by which ORMDL3 predisposes to asthma are unclear. Previous studies have suggested that ORMDL3 induces endoplasmic reticulum (ER) stress and production of the type I interferon (IFN)-regulated chemokine CXCL10. OBJECTIVE The purpose of this study was to determine the relationship between ORMDL3 and rhinovirus-induced ER stress and type I IFN in human leucocytes. METHODS ER stress was monitored by measuring HSPA5, CHOP and spliced XBP1 gene expression, and type I IFN by measuring IFNB1 (IFN-β) and CXCL10 expression in human cell lines and primary leucocytes following treatment with rhinovirus. Requirements for cell contact and specific cell type in ORMDL3 induction were examined by transwell assay and depletion experiments, respectively. Finally, the effects of 17q21 genotype on the expression of ORMDL3, IFNB1 and ER stress genes were assessed. RESULTS THP-1 monocytes overexpressing ORMDL3 responded to rhinovirus with increased IFNB1 and HSPA5. Rhinovirus-induced ORMDL3 expression in primary leucocytes required cell-cell contact, and induction was suppressed by plasmacytoid dendritic cell depletion. The degree of rhinovirus-induced ORMDL3, HSPA5 and IFNB1 expression varied by leucocyte type and 17q21 genotype, with the highest expression of these genes in the asthma-associated genotype. CONCLUSIONS AND CLINICAL RELEVANCE Multiple lines of evidence support an association between higher ORMDL3 and increased rhinovirus-induced HSPA5 and type I IFN gene expression. These associations with ORMDL3 are cell type specific, with the most significant 17q21 genotype effects on ORMDL3 expression and HSPA5 induction evident in B cells. Together, these findings have implications for how the interaction of increased ORMDL3 and rhinovirus may predispose to asthma.
Collapse
Affiliation(s)
- Y-P Liu
- Division of Allergy, Immunology and Rheumatology, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - V Rajamanikham
- Department of Biostatistics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - M Baron
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - S Patel
- Division of Allergy, Immunology and Rheumatology, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - S K Mathur
- Division of Allergy, Pulmonary and Critical Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - E A Schwantes
- Division of Allergy, Pulmonary and Critical Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - C Ober
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | - D J Jackson
- Division of Allergy, Immunology and Rheumatology, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - J E Gern
- Division of Allergy, Immunology and Rheumatology, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - R F Lemanske
- Division of Allergy, Immunology and Rheumatology, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - J A Smith
- Division of Allergy, Immunology and Rheumatology, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| |
Collapse
|
35
|
Bratke K, Fritz L, Nokodian F, Geißler K, Garbe K, Lommatzsch M, Virchow JC. Differential regulation of PD-1 and its ligands in allergic asthma. Clin Exp Allergy 2017; 47:1417-1425. [PMID: 28865147 DOI: 10.1111/cea.13017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 08/10/2017] [Accepted: 08/23/2017] [Indexed: 01/09/2023]
Abstract
BACKGROUND Targeting PD-1/PD-1 ligand signalling is an established treatment option for cancer. The role of these molecules in allergic asthma has been investigated in several mouse studies yielding conflicting results. However, human studies investigating the expression and regulation of PD-1 and its ligands in allergic inflammation are lacking. OBJECTIVE To analyse the expression and regulation of PD-1 and its ligands in human allergic asthma. METHODS The well-established human asthma model of segmental allergen challenge (SAC) was used to analyse the regulation of PD-1 and its ligands PD-L1 and PD-L2 on T lymphocytes and dendritic cells by flow cytometry. The impact of immunoglobulin E (IgE)-mediated signalling on PD-L1 expression was analysed on isolated plasmacytoid dendritic cells (pDCs). RESULTS PD-1 expression by blood CD4+ T cells was negatively associated with total and specific (against the allergen used for provocation) IgE serum concentrations. Twenty-four hours after SAC, a small decrease in endobronchial PD-1+ CD4+ T cells was accompanied by an increase in PD-L1 expression on endobronchial myeloid dendritic cells (mDCs) and pDCs. The PD-L1 up-regulation on pDCs was not induced by IgE-mediated mechanisms. In contrast, PD-L2 was only detected on endobronchial mDCs and was significantly down-regulated 24 hours after SAC. CONCLUSION AND CLINICAL RELEVANCE This study shows, for the first time, an association of a low PD-1 expression by circulating CD4+ T cells with high total and specific (against the allergen used for provocation) IgE concentrations in allergic asthma. In addition, we demonstrate a differential regulation of PD-1 ligands on endobronchial DCs after allergen challenge which may favour Th2 inflammation. Therefore, modulating PD-1 ligand-mediated pathways might be a promising target in allergic asthma.
Collapse
Affiliation(s)
- K Bratke
- Department of Pneumology, University of Rostock, Rostock, Germany
| | - L Fritz
- Department of Pneumology, University of Rostock, Rostock, Germany
| | - F Nokodian
- Department of Pneumology, University of Rostock, Rostock, Germany
| | - K Geißler
- Department of Pneumology, University of Rostock, Rostock, Germany
| | - K Garbe
- Department of Pneumology, University of Rostock, Rostock, Germany
| | - M Lommatzsch
- Department of Pneumology, University of Rostock, Rostock, Germany
| | - J C Virchow
- Department of Pneumology, University of Rostock, Rostock, Germany
| |
Collapse
|
36
|
Lachowicz-Scroggins ME, Finkbeiner WE, Gordon ED, Yuan S, Zlock L, Bhakta NR, Woodruff PG, Fahy JV, Boushey HA. Corticosteroid and long-acting ß-agonist therapy reduces epithelial goblet cell metaplasia. Clin Exp Allergy 2017; 47:1534-1545. [PMID: 28833774 DOI: 10.1111/cea.13015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 08/03/2017] [Accepted: 08/13/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Bronchial epithelial goblet cell metaplasia (GCM) with hyperplasia is a prominent feature of asthma, but the effects of treatment with corticosteroids alone or in combination with a long-acting β2 -adrenergic receptor agonist (LABA) on GCM in the bronchial epithelium are unknown. OBJECTIVES To determine whether corticosteroid alone or in combination with a LABA alters protein and gene expression pathways associated with IL-13-induced goblet cell metaplasia. RESULTS We evaluated the effects of fluticasone propionate (FP) and of salmeterol (SM), on the response of well-differentiated cultured bronchial epithelial cells to interleukin-13 (IL-13). Outcome measures included gene expression of SPDEF/FOXa2, gene expression and protein production of MUC5AC/MUC5B and morphologic appearance of cultured epithelial cell sheets. We additionally analysed expression of these genes in bronchial epithelial brushings from healthy, steroid-naïve asthmatic and steroid-treated asthmatic subjects. In cultured airway epithelial cells, FP treatment inhibited IL-13-induced suppression of FOXa2 gene expression and up-regulation of SPDEF, alterations in gene and protein measures of MUC5AC and MUC5B and induction of GCM. The addition of SM synergistically modified the effects of FP modestly-only for gel-forming mucin MUC5AC. In bronchial epithelial cells recovered from asthmatic vs healthy human subjects, we found FOXa2 and MUC5B gene expression to be reduced and SPDEF and MUC5AC gene expression to be increased; these alterations were not observed in bronchial epithelial cells recovered after treatment with inhaled corticosteroids. CONCLUSION AND CLINICAL RELEVANCE Corticosteroid treatment inhibits IL-13-induced GCM of the airways in asthma, possibly through its effects on SPDEF and FOXa2 regulation of mucin gene expression. These effects are modestly augmented by the addition of a long-acting ß-agonist. As we found evidence for drug treatment counteracting the effects of IL-13 on the epithelium, we conclude that further exploration into the mechanisms by which corticosteroids and long-acting β2 -adrenergic agonists confer protection against pathologic airway changes is warranted.
Collapse
Affiliation(s)
- M E Lachowicz-Scroggins
- Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, USA
| | - W E Finkbeiner
- Department of Pathology, San Francisco General Hospital, University of California San Francisco, San Francisco, CA, USA
| | - E D Gordon
- Department of Medicine Division of Pulmonary/Critical Care Medicine University of California San Francisco, San Francisco, CA, USA
| | - S Yuan
- The David Rockefeller Graduate Program, Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
| | - L Zlock
- Department of Pathology, San Francisco General Hospital, University of California San Francisco, San Francisco, CA, USA
| | - N R Bhakta
- Department of Medicine Division of Pulmonary/Critical Care Medicine University of California San Francisco, San Francisco, CA, USA
| | - P G Woodruff
- Department of Medicine Division of Pulmonary/Critical Care Medicine University of California San Francisco, San Francisco, CA, USA
| | - J V Fahy
- Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, USA.,Department of Medicine Division of Pulmonary/Critical Care Medicine University of California San Francisco, San Francisco, CA, USA
| | - H A Boushey
- Department of Medicine Division of Pulmonary/Critical Care Medicine University of California San Francisco, San Francisco, CA, USA
| |
Collapse
|
37
|
Seppo AE, Savilahti EM, Berin MC, Sampson HA, Järvinen KM. Breast milk IgA to foods has different epitope specificity than serum IgA-Evidence for entero-mammary link for food-specific IgA? Clin Exp Allergy 2017; 47:1275-1284. [PMID: 28449395 DOI: 10.1111/cea.12945] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 03/14/2017] [Accepted: 03/22/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND We have previously shown that maternal cow's milk (CM) elimination results in downregulation of CM-specific IgA antibody levels in BM, but not in serum, suggesting that an entero-mammary link may exist for food-specific antibody-secreting cells. OBJECTIVE We sought to investigate whether food-specific IgA epitope profiles differ intra-individually between mother's serum and BM. We also examined how infants' food epitope-specific IgA develops in early infancy and the relationship of IgA epitope recognition with development of cow's milk allergy (CMA). METHODS We measured specific IgA to a series of overlapping peptides in major CM allergens (αs1 -, αs2 -, β- and κ-caseins and β-lactoglobulin) in paired maternal and infant serum as well as BM samples in 31 mother-infant dyads within the first 15 post-partum months utilizing peptide microarray. RESULTS There was significant discordance in epitope specificity between BM and maternal sera ranging from only 13% of sample pairs sharing at least one epitope in αs1 -casein to 73% in κ-casein. Epitope-specific IgA was detectable in infants' sera starting at less than 3 months of age. Sera of mothers with a CMA infant had increased binding of epitope-specific IgA to CM proteins compared to those with a non-CMA infant. CONCLUSION & CLINICAL RELEVANCE These findings support the concept that mother's milk has a distinct antifood antibody repertoire when compared to the antibody repertoire of the peripheral blood. Increased binding of serum epitope-specific IgA to CM in mothers of infants with CMA may reflect inherited systemic immunogenicity of CM proteins in these families, although specific IgA in breast milk was not proportionally up-regulated.
Collapse
Affiliation(s)
- A E Seppo
- Division of Pediatric Allergy and Immunology & Center for Food Allergy, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - E M Savilahti
- Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - M C Berin
- Division of Pediatric Allergy & Immunology and Jaffe Institute for Food Allergy, The Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - H A Sampson
- Division of Pediatric Allergy & Immunology and Jaffe Institute for Food Allergy, The Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - K M Järvinen
- Division of Pediatric Allergy and Immunology & Center for Food Allergy, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.,Division of Pediatric Allergy & Immunology and Jaffe Institute for Food Allergy, The Icahn School of Medicine at Mount Sinai, New York, NY, USA
| |
Collapse
|
38
|
Wang W, Qu X, Dang X, Shang D, Yang L, Li Y, Xu D, Martin JG, Hamid Q, Liu J, Chang Y. Human β-defensin-3 induces IL-8 release and apoptosis in airway smooth muscle cells. Clin Exp Allergy 2017; 47:1138-1149. [PMID: 28437599 DOI: 10.1111/cea.12943] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/12/2017] [Accepted: 04/14/2017] [Indexed: 12/23/2022]
Abstract
BACKGROUND Human airway smooth muscle cells (ASMCs) may have a pro-inflammatory role through the release of inflammatory mediators. Increasing evidence indicates that human β-defensins (HBDs) are related to pathogenesis of asthma. OBJECTIVES To examine the plasma level of HBD-1, HBD-2 and HBD-3 in asthmatic patients and the expression of their mouse orthologues in the lung tissue of a mouse model of chronic severe asthma. Further to investigate the effect of HBD-3 on the release of the pro-inflammatory cytokine IL-8 and to explore the mechanisms. METHODS The plasma levels of HBD-1, HBD-2 and HBD-3 from 34 healthy controls and 25 asthmatic patients were determined by ELISA. The expression of mouse β-defensins MBD-1, MBD-3 and MBD-14 in the lung tissue of asthmatic mice was detected by Western blot. The ASMCs were cultured with HBD-3 for 24 hour, and then the supernatant level of IL-8 was evaluated by ELISA and the cell viability was examined by WST-1 assay. The signalling pathway was investigated with blocking antibodies or pharmacological inhibitors. RESULTS The plasma levels of HBD-1 and HBD-3 were elevated in asthmatic patients, and the expression of MBD-14, the mouse orthologue for HBD-3, was increased in asthmatic mice. HBD-3-induced IL-8 production in a CCR6 receptor-specific manner and was dependent on multiple signalling pathways. Moreover, HBD-3-induced cell apoptosis concurrently, which was dependent on the ERK1/2 MAPK pathway. Mitochondrial ROS regulated both HBD-3-induced IL-8 production and cell apoptosis. CONCLUSIONS AND CLINICAL RELEVANCE These observations provide clear evidence of an important new mechanism for the promotion of airway inflammation and tissue remodelling with potential relevance for the treatment of asthma.
Collapse
Affiliation(s)
- W Wang
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - X Qu
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - X Dang
- Department of Respiration, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - D Shang
- Department of Respiration, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - L Yang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Y Li
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - D Xu
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - J G Martin
- Meakins-Christie Laboratories and Respiratory Division, The Research Institute of the McGill University Health Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Q Hamid
- Meakins-Christie Laboratories and Respiratory Division, The Research Institute of the McGill University Health Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada.,College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - J Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Y Chang
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| |
Collapse
|
39
|
Strömbeck A, Nordström I, Andersson K, Andersson H, Johansen S, Maglio C, Rabe H, Adlerberth I, Wold AE, Hesselmar B, Rudin A, Lundell AC. Allergic disease in 8-year-old children is preceded by delayed B cell maturation. Clin Exp Allergy 2017; 47:918-928. [PMID: 28295779 DOI: 10.1111/cea.12922] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/15/2017] [Accepted: 03/07/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND We previously reported that exposure to a farming environment is allergy-protective, while high proportions of neonatal immature/naïve CD5+ B cells and putative regulatory T cells (Tregs) are risk factors for development of allergic disease and sensitization up to 3 years of age. OBJECTIVE To examine if B and T cell maturation are associated with allergic disease and farming environment over the first 8 years in life. METHODS In the prospective FARMFLORA study, including both farming and non-farming families, 48 of 65 children took part in the 8-year follow-up study. Various B and T cell maturation variables were examined in blood samples obtained at several occasions from birth to 8 years of age and related to doctors' diagnosed allergic disease and sensitization, and to farming environment. RESULTS We found that the incidence of allergic disease was lower among farmers' compared to non-farmers' children during the 8-year follow-up period, and that farmers' children had higher proportions of memory B cells at 8 years of age. Moreover, a high proportion of neonatal CD5+ B cells was a risk factor for and may predict development of allergic disease at 8 years of age. A high proportion of Tregs was not protective against development of these conditions. CONCLUSION AND CLINICAL RELEVANCE High proportions of neonatal naïve B cells remained as a risk factor for allergic disease in school-aged children. Thus, the accelerated B cell maturation observed among farmers' children may be crucial for the allergy-protective effect of a farming environment.
Collapse
Affiliation(s)
- A Strömbeck
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - I Nordström
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - K Andersson
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - H Andersson
- Pediatric Clinic, Skaraborg Hospital, Lidköping, Sweden
| | - S Johansen
- Pediatric Clinic, Skaraborg Hospital, Lidköping, Sweden
| | - C Maglio
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - H Rabe
- Department of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden
| | - I Adlerberth
- Department of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden
| | - A E Wold
- Department of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden
| | - B Hesselmar
- Department of Pediatrics, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - A Rudin
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - A-C Lundell
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
40
|
Mathias CB, Schramm CM, Guernsey LA, Wu CA, Polukort SH, Rovatti J, Ser-Dolansky J, Secor E, Schneider SS, Thrall RS, Aguila HL. IL-15-deficient mice develop enhanced allergic responses to airway allergen exposure. Clin Exp Allergy 2017; 47:639-655. [PMID: 28093832 DOI: 10.1111/cea.12886] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 12/15/2016] [Accepted: 12/18/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Interleukin-15 is a pleiotropic cytokine that is critical for the development and survival of multiple haematopoietic lineages. Mice lacking IL-15 have selective defects in populations of several pro-allergic immune cells including natural killer (NK) cells, NKT cells, and memory CD8+ T cells. We therefore hypothesized that IL-15-/- mice will have reduced inflammatory responses during the development of allergic airway disease (AAD). OBJECTIVE To determine whether IL-15-/- mice have attenuated allergic responses in a mouse model of AAD. METHODS C57BL/6 wild-type (WT) and IL-15-/- mice were sensitized and challenged with ovalbumin (OVA), and the development of AAD was ascertained by examining changes in airway inflammatory responses, Th2 responses, and lung histopathology. RESULTS Here, we report that IL-15-/- mice developed enhanced allergic responses in an OVA-induced model of AAD. In the absence of IL-15, OVA-challenged mice exhibited enhanced bronchial eosinophilic inflammation, elevated IL-13 production, and severe lung histopathology in comparison with WT mice. In addition, increased numbers of CD4+ T and B cells in the spleens and bronchoalveolar lavage (BAL) were also observed. Examination of OVA-challenged IL-15Rα-/- animals revealed a similar phenotype resulting in enhanced airway eosinophilia compared to WT mice. Adoptive transfer of splenic CD8+ T cells from OVA-sensitized WT mice suppressed the enhancement of eosinophilia in IL-15-/- animals to levels observed in WT mice, but had no further effects. CONCLUSION AND CLINICAL RELEVANCE These data demonstrate that mice with an endogenous IL-15 deficiency are susceptible to the development of severe, enhanced Th2-mediated AAD, which can be regulated by CD8+ T cells. Furthermore, the development of disease as well as allergen-specific Th2 responses occurs despite deficiencies in several IL-15-dependent cell types including NK, NKT, and γδ T cells, suggesting that these cells or their subsets are dispensable for the induction of AAD in IL-15-deficient mice.
Collapse
Affiliation(s)
- C B Mathias
- Department of Pharmaceutical and Administrative Sciences, College of Pharmacy, Western New England University, Springfield, MA, USA
| | - C M Schramm
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| | - L A Guernsey
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| | - C A Wu
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| | - S H Polukort
- Department of Pharmaceutical and Administrative Sciences, College of Pharmacy, Western New England University, Springfield, MA, USA
| | - J Rovatti
- Department of Pharmaceutical and Administrative Sciences, College of Pharmacy, Western New England University, Springfield, MA, USA
| | - J Ser-Dolansky
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, MA, USA
| | - E Secor
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| | - S S Schneider
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, MA, USA
| | - R S Thrall
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| | - H L Aguila
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| |
Collapse
|
41
|
Kasahara DI, Mathews JA, Ninin FMC, Wurmbrand AP, Liao JK, Shore SA. Role of ROCK2 in CD4 + cells in allergic airways responses in mice. Clin Exp Allergy 2017; 47:224-235. [PMID: 27886408 PMCID: PMC5280456 DOI: 10.1111/cea.12866] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 10/28/2016] [Accepted: 11/20/2016] [Indexed: 12/26/2022]
Abstract
BACKGROUND Rho kinases (ROCKs) contribute to allergic airways disease. ROCKs also play a role in lymphocyte proliferation and migration. OBJECTIVE To determine the role of ROCK2 acting within CD4+ cells in allergic airways responses. METHODS ROCK2-haploinsufficient (ROCK2+/- ) and wild-type mice were sensitized with ovalbumin (OVA). ROCK2+/- mice then received either CD4+ cells from ROCK2-sufficient OVA TCR transgenic (OT-II) mice or saline i.v. 48 h before challenge with aerosolized OVA. Wild-type mice received saline before challenge. Allergic airways responses were measured 48 h after the last challenge. Allergic airways responses were also assessed in mice lacking ROCK2 only in CD4+ cells (ROCK2CD4Cre mice) vs. control (CD4-Cre and ROCK2flox/flox ) mice. RESULTS OVA-induced increases in bronchoalveolar lavage lymphocytes, eosinophils, IL-13, IL-5, and eotaxin were reduced in ROCK2+/- vs. wild-type mice, as were airway hyperresponsiveness and mucous hypersecretion. In ROCK2+/- mice, adoptive transfer with CD4+ cells from OT-II mice restored effects of OVA on lymphocytes, eosinophils, IL-13, IL-5, and mucous hypersecretion to wild-type levels, whereas eotaxin and airway hyperresponsiveness were not affected. ROCK2 inhibitors reduced IL-13-induced release of eotaxin from airway smooth muscle (ASM), similar to effects of these inhibitors on ASM contractility. Despite the ability of adoptive transfer to restore allergic airways inflammation in ROCK2-insufficient mice, allergic inflammation was not different in ROCK2CD4Cre vs. control mice. CONCLUSION ROCK2 contributes to allergic airways responses likely via effects within ASM cells and within non-lymphocyte cells involved in lymphocyte activation and migration into the airways.
Collapse
Affiliation(s)
- David I. Kasahara
- Physiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115-6021
| | - Joel A. Mathews
- Physiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115-6021
| | - Fernanda M. C. Ninin
- Physiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115-6021
| | - Allison P. Wurmbrand
- Physiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115-6021
| | - James K. Liao
- Department of Medicine, University of Chicago, Chicago, IL
| | - Stephanie A. Shore
- Physiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115-6021
| |
Collapse
|
42
|
Mitchell PD, Salter BM, Oliveria JP, El-Gammal A, Tworek D, Smith SG, Sehmi R, Gauvreau GM, Butler M, O'Byrne PM. Glucagon-like peptide-1 receptor expression on human eosinophils and its regulation of eosinophil activation. Clin Exp Allergy 2017; 47:331-338. [PMID: 27928844 DOI: 10.1111/cea.12860] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 10/19/2016] [Accepted: 10/20/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND Glucagon-like peptide-1 (GLP-1) and its receptor are part of the incretin family of hormones that regulate glucose metabolism. GLP-1 also has immune modulatory roles. OBJECTIVES To measure the expression of the GLP-1 receptor (GLP-1R) on eosinophils and neutrophils in normal and asthmatic subjects and evaluate effects of a GLP-1 analog on eosinophil function. METHODS Peripheral blood samples were taken from 10 normal and 10 allergic asthmatic subjects. GLP-1R expression was measured on eosinophils and neutrophils. Subsequently, the asthmatic subjects underwent allergen and diluent inhalation challenges, and GLP-1R expression was measured. Purified eosinophils, collected from mild asthmatic subjects, were stimulated with lipopolysaccharide (LPS) and a GLP-1 analog to evaluate eosinophil cell activation markers CD11b and CD69 and cytokine (IL-4, IL-5, IL-8 and IL-13) production. RESULTS Glucagon-like peptide-1 receptor is expressed on human eosinophils and neutrophils. Eosinophil, but not neutrophil, expression of GLP-1R is significantly higher in normal controls compared to allergic asthmatics. The expression of GLP-1R did not change on either eosinophils or neutrophils following allergen challenge. A GLP-1 analog significantly decreased the expression of eosinophil-surface activation markers following LPS stimulation and decreased eosinophil production of IL-4, IL-8 and IL-13, but not IL-5. CONCLUSION AND CLINICAL RELEVANCE Glucagon-like peptide-1 receptor is expressed on human eosinophils and neutrophils. A GLP-1 analog attenuates LPS-stimulated eosinophil activation. GLP-1 agonists may have additional adjunctive indications in treating persons with concomitant type 2 diabetes mellitus and asthma.
Collapse
Affiliation(s)
- P D Mitchell
- Department of Medicine, Michael G. DeGroote School of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - B M Salter
- Department of Medicine, Michael G. DeGroote School of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - J P Oliveria
- Department of Medicine, Michael G. DeGroote School of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - A El-Gammal
- Department of Medicine, Michael G. DeGroote School of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - D Tworek
- Department of Medicine, Michael G. DeGroote School of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - S G Smith
- Department of Medicine, Michael G. DeGroote School of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - R Sehmi
- Department of Medicine, Michael G. DeGroote School of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - G M Gauvreau
- Department of Medicine, Michael G. DeGroote School of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - M Butler
- Department of Medicine, University College Dublin, Dublin, Ireland
| | - P M O'Byrne
- Department of Medicine, Michael G. DeGroote School of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| |
Collapse
|
43
|
Winnica D, Que LG, Baffi C, Grasemann H, Fiedler K, Yang Z, Etling E, Wasil K, Wenzel SE, Freeman B, Holguin F. l-citrulline prevents asymmetric dimethylarginine-mediated reductions in nitric oxide and nitrosative stress in primary human airway epithelial cells. Clin Exp Allergy 2016; 47:190-199. [PMID: 27562295 DOI: 10.1111/cea.12802] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 07/07/2016] [Accepted: 08/24/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Asthma is associated with reduced systemic levels of l-arginine and increased asymmetric dimethylarginine (ADMA). This imbalance leads to nitric oxide synthase (NOS) uncoupling with reduced nitric oxide (NO) formation and greater oxidative and nitrosative stress. Whether this imbalance also occurs in bronchial epitheliumof asthmatics is unknown. OBJECTIVES We used primary human bronchial epithelial cells (HBECs) from asthmatics and healthy controls to evaluate: (i) ADMA-mediated NOS uncoupling reduces epithelial production of NO and increases oxygen and nitrogen reactive species, and (ii) l-citrulline can reverse this mechanism by recoupling NOS, restoring NO production and reducing oxidative and nitrosative stress. RESULTS In HBECsIL-13 and INFγ stimulated NOS2 and increased NOx levels. The addition of ADMA reduced NOx and increased H2 O2 levels (p<0.001). Treatment with l-citrulline (800, 1600 μm) rescued NOx when the l-arginine media concentration was 25 μm but failed to do so with higher concentrations (100 μm). Under reduced l-arginine media conditions, HBECs treated with l-citrulline increased the levels of argininosuccinate, an enzyme that metabolizes l-citrulline to l-arginine. l-citrulline prevented the ADMA-mediated increase in nitrotyrosine in HBECs in cells from asthmatics and controls. CONCLUSIONS AND CLINICAL RELEVANCE Increasing ADMA reduces NO formation and increases oxidative and nitrosative stress in airway epithelial cells. l-citrulline supplementation restores NO formation, while preventing nitrosative stress. These results, suggest that l-citrulline supplementation may indeed be a powerful approach to restore airway NO production and may have a therapeutic potential in diseases in which there is a defective production of NO.
Collapse
Affiliation(s)
- D Winnica
- Asthma Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - L G Que
- Medicine, Duke University School of Medicine, Durham, NC, USA
| | - C Baffi
- Asthma Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - H Grasemann
- Respiratory Medicine, Hospital for Sick Children, Toronto, ON, Canada
| | - K Fiedler
- Asthma Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Z Yang
- Medicine, Duke University School of Medicine, Durham, NC, USA
| | - E Etling
- Asthma Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - K Wasil
- Asthma Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - S E Wenzel
- Asthma Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - B Freeman
- Pharmacology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - F Holguin
- Asthma Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| |
Collapse
|
44
|
Husslik F, Nürnberg J, Seutter von Loetzen C, Mews T, Ballmer-Weber BK, Kleine-Tebbe J, Treudler R, Simon JC, Randow S, Völker E, Reuter A, Rösch P, Vieths S, Holzhauser T, Schiller D. The conformational IgE epitope profile of soya bean allergen Gly m 4. Clin Exp Allergy 2016; 46:1484-1497. [PMID: 27533495 DOI: 10.1111/cea.12796] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/06/2016] [Accepted: 07/11/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Birch pollen-related soya allergy is mediated by Gly m 4. Conformational IgE epitopes of Gly m 4 are unknown. OBJECTIVE To identify the IgE epitope profile of Gly m 4 in subjects with birch pollen-related soya allergy utilizing an epitope library presented by Gly m 4-type model proteins. METHODS Sera from patients with (n = 26) and without (n = 19) allergy to soya as determined by oral provocation tests were studied. Specific IgE (Bet v 1/Gly m 4) was determined by ImmunoCAP. A library of 59 non-allergenic Gly m 4-type model proteins harbouring individual and multiple putative epitopes for IgE was tested in IgE binding assays. Primary, secondary and tertiary protein structures were assessed by mass spectrometry, circular dichroism and nuclear magnetic resonance spectroscopy. RESULTS All subjects were sensitized to Gly m 4 and Bet v 1. Allergen-specific serum IgE levels ranged from 0.94 to > 100 kUA /L. The avidities of serum IgE were 5.06 ng (allergic) and 1.8 ng (tolerant) as determined by EC50 for IgE binding to Gly m 4. 96% (46/48) of the protein variants bound IgE. Model proteins had Gly m 4-type conformation and individual IgE binding clustered in six major surface areas. Gly m 4-specific IgE binding could be inhibited to up to 80% by model proteins harbouring individual IgE binding sites in an epitope-wise equimolar fashion. Receiver operating curve analysis revealed an area under fitted curve of up to 0.88 for model proteins and 0.66 for Gly m 4. CONCLUSION AND CLINICAL RELEVANCE Serum levels and avidity of Gly m 4-specific IgE do not correlate with clinical reactivity to soya. Six IgE-binding areas, represented by 23 amino acids, account for more than 80% of total IgE binding capacity of Gly m 4. Model proteins may be used for epitope-resolved diagnosis to differentiate birch-soya allergy from clinical tolerance.
Collapse
Affiliation(s)
- F Husslik
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - J Nürnberg
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | | | - T Mews
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - B K Ballmer-Weber
- Centre for Dermatology and Allergology, Kantonsspital Luzern, Luzern, Switzerland.,Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | | | - R Treudler
- Department of Dermatology, Venereology and Allergology, University of Leipzig, Leipzig, Germany
| | - J-C Simon
- Department of Dermatology, Venereology and Allergology, University of Leipzig, Leipzig, Germany
| | - S Randow
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - E Völker
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - A Reuter
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - P Rösch
- Department of Biopolymers, University of Bayreuth, Bayreuth, Germany
| | - S Vieths
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - T Holzhauser
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - D Schiller
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany.
| |
Collapse
|
45
|
Post S, Rozeveld D, Jonker MR, Bischoff R, van Oosterhout AJ, Heijink IH. ADAM10 mediates the house dust mite-induced release of chemokine ligand CCL20 by airway epithelium. Allergy 2015; 70:1545-52. [PMID: 26296735 DOI: 10.1111/all.12730] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2015] [Indexed: 01/13/2023]
Abstract
BACKGROUND House dust mite (HDM) acts on the airway epithelium to induce airway inflammation in asthma. We previously showed that the ability of HDM to induce allergic sensitization in mice is related to airway epithelial CCL20 secretion. OBJECTIVE As a disintegrin and metalloprotease (ADAM)s have been implicated in chemokine shedding, we sought to determine their involvement in HDM-induced release of chemokines, including CCL20, by airway epithelial cells. METHODS We studied the effects of pharmacological ADAM inhibitors as well as ADAM10 and ADAM17 siRNA downregulation on chemokine release using (multiplex) ELISA in supernatants from HDM-exposed human bronchial epithelial 16HBE cells and primary normal human bronchial epithelial cells (NHBE) at 4-24 h. RESULTS House dust) mite markedly increased CCL20 levels in both 16HBE and NHBE cells (16-24 h). In 16HBE cells, the HDM-induced increase was observed as early as 4 h upon exposure and the use of specific inhibitors indicated the involvement of ADAM10/17-mediated shedding. siRNA knockdown of ADAM10, but not of ADAM17, significantly reduced the HDM-induced release of CCL20 in both 16HBE and NHBE cells. A similar effect was observed for HDM-induced CCL2, CCL5, and CXCL8 release in NHBE cells. The HDM-induced increase in CCL20 levels was not affected by protein synthesis inhibitor cycloheximide nor protein transport inhibitor monensin, indicating that HDM induces surface shedding of chemokines. CONCLUSION Our data show for the first time that ADAM10 activity contributes to HDM-induced shedding of chemokines, including CCL20. The ADAM10/CCL20 axis may be a target for novel therapeutic strategies in asthma.
Collapse
Affiliation(s)
- S. Post
- Department of Pathology & Medical Biology, Experimental Pulmonology and Inflammation Research; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
- GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
| | - D. Rozeveld
- Department of Pathology & Medical Biology, Experimental Pulmonology and Inflammation Research; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
- GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
| | - M. R Jonker
- Department of Pathology & Medical Biology, Experimental Pulmonology and Inflammation Research; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
- GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
| | - R. Bischoff
- Department of Pharmacy, Analytical Biochemistry; University of Groningen; Groningen The Netherlands
| | - A. J. van Oosterhout
- Department of Pathology & Medical Biology, Experimental Pulmonology and Inflammation Research; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
- GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
| | - I. H. Heijink
- Department of Pathology & Medical Biology, Experimental Pulmonology and Inflammation Research; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
- GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
- Department of Pulmonology; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
| |
Collapse
|
46
|
Abstract
Atopic dermatitis (AD) is a debilitating disease that significantly alters the quality of life for one in four children and one in 10 adults. Current management of AD utilizes combinations of treatments to symptomatically alleviate disease by suppressing the inflammatory response and restoring barrier function in the skin, reducing disease exacerbation and flare, and preventing secondary skin infections. Resolution is temporary and long-term usage of these treatments can be associated with significant side-effects. Antibody therapies previously approved for inflammatory diseases have been opportunistically evaluated in patients with atopic dermatitis; however, they often failed to demonstrate a significant clinical benefit. Monoclonal antibodies currently in development offer hope to those individuals suffering from the disease by specifically targeting immune and molecular pathways important for the pathogenesis of atopic dermatitis. Here, we review the underlying biological pathways and the state of the art in therapeutics in AD.
Collapse
Affiliation(s)
| | | | | | - K Ranade
- MedImmune, LLC, Gaithersburg, MD, USA
| |
Collapse
|
47
|
Nestor CE, Dadfar E, Ernerudh J, Gustafsson M, Björkander J, Benson M, Zhang H. Sublingual immunotherapy alters expression of IL-4 and its soluble and membrane-bound receptors. Allergy 2014; 69:1564-6. [PMID: 25130266 DOI: 10.1111/all.12505] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/06/2014] [Indexed: 01/12/2023]
Abstract
Seasonal allergic rhinitis (SAR) is a disease of increasing prevalence, which results from an inappropriate T helper cell, type 2 (Th2) response to pollen. Specific immunotherapy (SIT) involves repeated treatment with small doses of pollen and can result in complete and lasting reversal of SAR. Here, we assayed the key Th2 cytokine, IL-4, and its soluble and membrane-bound receptor in patients with SAR before and after SIT. Using allergen-challenge assays, we found that SIT treatment decreased IL-4 cytokine levels, as previously reported. We also observed a significant decrease in the IL-4 membrane-bound receptor (mIL4R) at the level of both mRNA and protein. SIT treatment resulted in a significant increase in the inhibitory soluble IL-4 receptor (sIL4R). Reciprocal changes in mIL4R and sIL4R were also observed in patient serum. Altered mIL4R and sIL4R is a novel explanation for the positive effects of immunotherapy with potential basic and clinical research implications.
Collapse
Affiliation(s)
- C. E. Nestor
- Department of Clinical and Experimental Medicine; Linkoping University; Linkoping Sweden
- CIMed, Centre for Individualised Medicine; Faculty of Health Sciences; Linkoping University; Linkoping Sweden
| | - E. Dadfar
- Department of Clinical and Experimental Medicine; Linkoping University; Linkoping Sweden
- CIMed, Centre for Individualised Medicine; Faculty of Health Sciences; Linkoping University; Linkoping Sweden
| | - J. Ernerudh
- Department of Clinical and Experimental Medicine; Linkoping University; Linkoping Sweden
| | - M. Gustafsson
- Department of Clinical and Experimental Medicine; Linkoping University; Linkoping Sweden
- CIMed, Centre for Individualised Medicine; Faculty of Health Sciences; Linkoping University; Linkoping Sweden
| | - J. Björkander
- Department of Clinical and Experimental Medicine; Linkoping University; Linkoping Sweden
- Department of Internal Medicine; Ryhov County Hospital; Jonkoping Sweden
| | - M. Benson
- Department of Clinical and Experimental Medicine; Linkoping University; Linkoping Sweden
- CIMed, Centre for Individualised Medicine; Faculty of Health Sciences; Linkoping University; Linkoping Sweden
| | - H. Zhang
- Department of Clinical and Experimental Medicine; Linkoping University; Linkoping Sweden
- CIMed, Centre for Individualised Medicine; Faculty of Health Sciences; Linkoping University; Linkoping Sweden
| |
Collapse
|
48
|
Uermösi C, Zabel F, Manolova V, Bauer M, Beerli RR, Senti G, Kündig TM, Saudan P, Bachmann MF. IgG-mediated down-regulation of IgE bound to mast cells: a potential novel mechanism of allergen-specific desensitization. Allergy 2014; 69:338-47. [PMID: 24354793 DOI: 10.1111/all.12327] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND Allergen-specific IgGs are known to inhibit IgE-mediated mast cell degranulation by two mechanisms, allergen-neutralization and engagement of the inhibitory FcγRIIB recruiting the phosphatase SHIP-1. Here we unravel an additional mechanism of IgG-mediated mast cell desensitization in mice: down-regulation of allergen-specific IgE. METHODS Mast cells were loaded in vitro and in vivo with monoclonal IgE antibodies specific for Fel d1 and exposed to immune complexes consisting of Fel d1-specific IgG antibodies recognizing different epitopes. Down regulation of IgE was followed by flow cytometry. RESULTS Mast cells loaded with 2 different IgE antibodies efficiently internalized the IgE antibodies if exposed to recombinant Feld d1. In contrast, no down-regulation occurred if mast cells were loaded with IgE antibodies exhibiting a single specificity before stimulation with recombinant Fel d1 [corrected]. Interestingly, however, IgEs of a single specificity were rapidly down-regulated in vitro and in vivo in the presence of Fel d1-specific monoclonal IgGs recognizing another epitope on Fel d1. Despite FceRI-internalization, little calcium flux or mast cell degranulation occurred. FcγRIIB played a dual role in the process since it enhanced IgE internalization and prevented cellular activation as documented by the inhibited calcium flux and mast cell degranulation. Similar observations were made in the presence of low concentrations of IgEs recognizing several epitopes on Fel d1. CONCLUSION We demonstrate here that Fel d1-specific IgG antibodies interact with FcγRIIB which (i) promotes IgE internalization; and (ii) inhibits mast cell activation. These results broaden our understanding of allergen-specific desensitization and may provide a mechanism for long-term desensitization of mast cells by selective removal of long-lived IgE antibodies on mast cells.
Collapse
Affiliation(s)
- C. Uermösi
- Cytos Biotechnology AG; Zurich-Schlieren Switzerland
| | - F. Zabel
- Department of Dermatology; Zurich University Hospital; Zurich Switzerland
| | - V. Manolova
- Cytos Biotechnology AG; Zurich-Schlieren Switzerland
| | - M. Bauer
- Intercell AG; Schlieren Switzerland
| | | | - G. Senti
- Department of Dermatology; Zurich University Hospital; Zurich Switzerland
| | - T. M. Kündig
- Department of Dermatology; Zurich University Hospital; Zurich Switzerland
| | - P. Saudan
- Cytos Biotechnology AG; Zurich-Schlieren Switzerland
| | - M. F. Bachmann
- Department of Dermatology; Zurich University Hospital; Zurich Switzerland
- The Jenner Institute; University of Oxford; Headington Oxford UK
| |
Collapse
|
49
|
Vazquez-Ortiz M, Pascal M, Juan M, Alsina L, Martín-Mateos MA, Plaza AM. Serum allergen-specific IgA is not associated with natural or induced tolerance to egg in children. Allergy 2013; 68:1327-32. [PMID: 24004369 DOI: 10.1111/all.12217] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2013] [Indexed: 11/29/2022]
Abstract
The role of specific IgA (sIgA) in oral immunotherapy (OIT) and natural tolerance to foods is poorly understood. We aimed to study serum sIgA in induced and natural tolerance to egg. Children aged 5-16 years diagnosed with IgE-mediated egg allergy were recruited. After egg challenge, patients were classified as transient (TEA) or persistent (PEA) egg-allergic. PEA children were further divided into oral immunotherapy (PEA-OIT) or egg avoidance (PEA-EA). Allergy/tolerance was reassessed 9-12 months later (T1) in PEA-EA. Serum sIgA to ovalbumin and ovomucoid were determined at inclusion in all patients and repeated in PEA at T1. 21 TEA and 52 PEA children were recruited (28 PEA-OIT, 24 PEA-EA). Serum sIgA remained unchanged after OIT. TEA and PEA had similar serum sIgA. No specific trend on serum sIgA was observed in five PEA-EA who developed natural tolerance over follow-up. Thus, serum sIgA seems not to be associated with induced or natural egg tolerance.
Collapse
Affiliation(s)
- M. Vazquez-Ortiz
- Paediatric Allergy and Clinical Immunology Department; Hospital Sant Joan de Déu; Universitat de Barcelona; Spain
| | - M. Pascal
- Immunology Department, CDB; Hospital Clinic de Barcelona; Universitat de Barcelona; Spain
| | - M. Juan
- Immunology Department, CDB; Hospital Clinic de Barcelona; Universitat de Barcelona; Spain
| | - L. Alsina
- Paediatric Allergy and Clinical Immunology Department; Hospital Sant Joan de Déu; Universitat de Barcelona; Spain
| | - M. A. Martín-Mateos
- Paediatric Allergy and Clinical Immunology Department; Hospital Sant Joan de Déu; Universitat de Barcelona; Spain
| | - A. M. Plaza
- Paediatric Allergy and Clinical Immunology Department; Hospital Sant Joan de Déu; Universitat de Barcelona; Spain
| |
Collapse
|