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Konno-Yamamoto A, Goswamy V, Calatroni A, Gergen PJ, Johnson M, Sorkness RL, Bacharier LB, O'Connor GT, Kattan M, Wood RA, Gagalis L, Visness CM, Gern JE. Relationships between lung function, allergy, and wheezing in urban children. J Allergy Clin Immunol 2024:S0091-6749(24)00331-2. [PMID: 38574825 DOI: 10.1016/j.jaci.2024.02.025] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/23/2024] [Accepted: 02/23/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Allergic sensitization and low lung function in early childhood are risk factors for subsequent wheezing and asthma. However, it is unclear how allergic sensitization affects lung function over time. OBJECTIVE We sought to test whether allergy influences lung function and whether these factors synergistically increase the risk of continued wheezing in childhood. METHODS We analyzed longitudinal measurements of lung function (spirometry and impulse oscillometry) and allergic sensitization (aeroallergen skin tests and serum allergen-specific IgE) throughout early childhood in the Urban Environmental and Childhood Asthma study, which included high-risk urban children living in disadvantaged neighborhoods. Intraclass correlation coefficients were calculated to assess lung function stability. Cluster analysis identified low, medium, and high allergy trajectories, which were compared with lung function and wheezing episodes in linear regression models. A variable selection model assessed predictors at age 5 years for continued wheezing through age 12 years. RESULTS Lung function adjusted for growth was stable (intraclass correlation coefficient, 0.5-0.7) from age 5 to 12 years and unrelated to allergy trajectory. Lung function and allergic sensitization were associated with wheezing episodes in an additive fashion. In children with asthma, measuring lung function at age 5 years added little to the medical history for predicting future wheezing episodes through age 12 years. CONCLUSIONS In high-risk urban children, age-related trajectories of allergic sensitization were not associated with lung function development; however, both indicators were related to continued wheezing. These results underscore the importance of understanding early-life factors that negatively affect lung development and suggest that treating allergic sensitization may not alter lung function development in early to mid-childhood.
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Affiliation(s)
- Aya Konno-Yamamoto
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wis.
| | - Vinay Goswamy
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wis
| | | | - Peter J Gergen
- National Institute of Allergy and Infectious Diseases, Rockville, Md
| | | | - Ronald L Sorkness
- Department of Medicine, University of Wisconsin-Madison, Madison, Wis
| | - Leonard B Bacharier
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tenn
| | - George T O'Connor
- Department of Medicine, Boston University School of Medicine, Boston, Mass
| | - Meyer Kattan
- Department of Pediatrics, Columbia University, New York, NY
| | - Robert A Wood
- Division of Pediatric Allergy, Immunology, and Rheumatology, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Lisa Gagalis
- National Institute of Allergy and Infectious Diseases, Rockville, Md
| | | | - James E Gern
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wis
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2
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Taki MH, Lee KE, Gangnon R, Gern JE, Lemanske RF, Jackson DJ, Singh AM. Atopic dermatitis phenotype affects expression of atopic diseases despite similar mononuclear cell cytokine response. J Allergy Clin Immunol 2024:S0091-6749(24)00231-8. [PMID: 38438085 DOI: 10.1016/j.jaci.2024.02.015] [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: 07/19/2023] [Revised: 01/08/2024] [Accepted: 02/12/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND The atopic march refers to the coexpression and progression of atopic diseases in childhood, often beginning with atopic dermatitis (AD), although children may not progress through each atopic disease. OBJECTIVE We hypothesized that future atopic disease expression is modified by AD phenotype and that these differences result from underlying dysregulation of cytokine signaling. METHODS Children (n = 285) were enrolled into the Childhood Origins of Asthma (COAST) birth cohort and followed prospectively. Rates of AD, food allergy, allergic rhinitis, and asthma were assessed longitudinally from birth to 18 years of age. Associations between AD phenotype and food allergy, allergic rhinitis, asthma, allergic sensitization, exhaled nitric oxide, and lung function were determined. Peripheral blood mononuclear cell responses (IL-5, IL-10, IL-13, IFN-γ) to dust mite, phytohemagglutinin, Staphylococcus aureus Cowan I, and tetanus toxoid were compared among AD phenotypes. RESULTS AD at year 1 was associated with an increased risk of food allergy (P = .004). Both persistent and late-onset AD were associated with an increased risk of asthma (P < .001), rhinitis (P < .001), elevated total IgE (P < .001), percentage of aeroallergens with detectable IgE (P < .001), and elevated exhaled nitric oxide (P = .002). Longitudinal analyses did not reveal consistent differences in peripheral blood mononuclear cell responses among dermatitis phenotypes. CONCLUSION AD phenotype is associated with differential expression of other atopic diseases. Our findings suggest that peripheral blood cytokine dysregulation is not a mechanism underlying this process, and immune dysregulation may be mediated at mucosal surfaces or in secondary lymphoid organs.
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Affiliation(s)
- Mohamed H Taki
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis; Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - Kristine E Lee
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - Ronald Gangnon
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - James E Gern
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis; Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - Robert F Lemanske
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis; Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - Daniel J Jackson
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis.
| | - Anne Marie Singh
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis.
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Cabanos C, Finkina E. Editorial: Current perspectives on the role of lipids in allergic reaction. Front Mol Biosci 2024; 11:1364003. [PMID: 38293600 PMCID: PMC10822935 DOI: 10.3389/fmolb.2024.1364003] [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: 01/01/2024] [Accepted: 01/04/2024] [Indexed: 02/01/2024] Open
Affiliation(s)
- Cerrone Cabanos
- Laboratory of Food Quality Design and Development, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | - Ekaterina Finkina
- Science-Educational Center, M. M. Shemyakin and Yu A. Ovchinnikov Institute of Bioorganic Chemistry, The Russian Academy of Sciences, Moscow, Russia
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Zuurveld M, Diks MAP, Kiliaan PCJ, Garssen J, Folkerts G, van’t Land B, Willemsen LEM. Butyrate interacts with the effects of 2'FL and 3FL to modulate in vitro ovalbumin-induced immune activation, and 2'FL lowers mucosal mast cell activation in a preclinical model for hen's egg allergy. Front Nutr 2023; 10:1305833. [PMID: 38174112 PMCID: PMC10762782 DOI: 10.3389/fnut.2023.1305833] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/15/2023] [Indexed: 01/05/2024] Open
Abstract
Background Early life provides a window of opportunity to prevent allergic diseases. With a prevalence of 0.5-2% in infants, hen's egg allergy is one of the most common food allergies. The immunomodulatory effects of human milk oligosaccharides (HMOs), 2'-fucosyllactose (2'FL), and 3-fucosyllactose (3FL) were studied in an in vitro mucosal immune model and an in vivo murine model for hen's egg (ovalbumin) allergy. Methods Intestinal epithelial cell (IEC)/dendritic cell (DC) and DC/T cell cocultures were used to expose IECs to ovalbumin (OVA) in an in vitro mucosal immune model. The effects of epithelial pre-incubation with 0.1% 2'FL or 3FL and/or 0.5 mM butyrate were studied. Three- to four-weeks-old female C3H/HeOuJ mice were fed AIN93G diets containing 0.1-0.5% 2'FL or 3FL 2 weeks before and during OVA sensitization and challenge. Allergic symptoms and systemic and local immune parameters were assessed. Results Exposing IECs to butyrate in vitro left the IEC/DC/T cell cross-talk unaffected, while 2'FL and 3FL showed differential immunomodulatory effects. In 3FL exposed IEC-DC-T cells, the secretion of IFNγ and IL10 was enhanced. This was observed upon pre-incubation of IECs with 2'FL and butyrate as well, but not 2'FL alone. The presence of butyrate did not affect OVA activation, but when combined with 3FL, an increase in IL6 release from DCs was observed (p < 0.001). OVA allergic mice receiving 0.5% 3FL diet had a lower %Th2 cells in MLNs, but the humoral response was unaltered compared to control mice. OVA-allergic mice receiving 0.1 or 0.5% 2'FL diets had lower serum levels of OVA-IgG2a (p < 0.05) or the mast cell marker mMCP1, in association with increased concentration of cecal short-chain fatty acids (SCFAs) (p < 0.05). Conclusion In vitro butyrate exposure promotes the development of a downstream type 1 and regulatory response observed after 2'FL exposure. 2'FL and 3FL differentially modulate ovalbumin-induced mucosal inflammation predominantly independent of butyrate. Mice receiving dietary 3FL during ovalbumin sensitization and challenge had lowered Th2 activation while the frequency of Treg cells was enhanced. By contrast, 2'FL improved the humoral immune response and suppressed mast cell activation in association with increased SCFAs production in the murine model for hen's egg allergy.
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Affiliation(s)
- M. Zuurveld
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - M. A. P. Diks
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - P. C. J. Kiliaan
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - J. Garssen
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
- Danone Nutricia Research B.V, Utrecht, Netherlands
| | - G. Folkerts
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - B. van’t Land
- Danone Nutricia Research B.V, Utrecht, Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - L. E. M. Willemsen
- Division of Pharmacology, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
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Kwong K, Robinson M, Sullivan A, Letovsky S, Liu AH, Valcour A. Fungal allergen sensitization: Prevalence, risk factors, and geographic variation in the United States. J Allergy Clin Immunol 2023; 152:1658-1668. [PMID: 37741553 DOI: 10.1016/j.jaci.2023.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 02/17/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 09/25/2023]
Abstract
BACKGROUND Many fungal species are associated with the pathogenesis of allergic disease, yet most epidemiologic studies on IgE-mediated fungal sensitization have only included a few species. OBJECTIVE We investigated fungal allergen sensitization prevalence, risk factors, and geographic variation in the United States. METHODS From 2014 to 2019, a total of 7,912,504 serum-specific IgE (sIgE) test results for 17 fungal species were measured in 1,651,203 patients aged 0-85 years by a US-wide clinical laboratory. Fungal sensitization prevalence, patterns, and relationship with demographic characteristics, clinical diagnoses, and geographic regions were analyzed. RESULTS Twenty-two percent of patients were positive (sIgE > 0.10 kUA/L) to at least 1 fungal allergen; 13.7% were positive to >2 fungal allergens. Fungal species-specific positivity rates ranged 7.4-18.6% and were highest for Candida albicans (18.6%), Alternaria alternata (16.6%), Stemphylium herbarum (14.9%), and Aspergillus fumigatus (14.2%). Other fungi that were frequently tested had relatively low positivity rates (eg, Cladosporium herbarum 11.1%, Penicillium chrysogenum 10.7%). Independent risk factors for test positivity for all fungal species included male sex, teen age (highest in those aged 10-19 years), atopic dermatitis, and asthma. Fungal sensitization was generally higher in urban areas and ecoregions composed predominantly of grasslands and prairies compared to woodlands and forest, although there was greater variation in sensitization risk to different fungi in different ecoregions. CONCLUSION Independent risk factors for fungal sensitization include male sex, teen ages, atopic dermatitis, asthma, and ecoregion.
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Affiliation(s)
- Kenny Kwong
- Department of Pediatrics, Division of Allergy-Immunology, Los Angeles County and University of Southern California Medical Center, Los Angeles, Calif.
| | | | | | | | - Andrew H Liu
- Pediatric Pulmonary & Sleep Medicine Section, and Breathing Institute, Children's Hospital Colorado and University of Colorado School of Medicine, Aurora, Colo
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Hopkins GV, Cochrane S, Onion D, Fairclough LC. Invariant NKT cells are more abundant in peanut-allergic adults and a subset of CD8 + iNKT cells are depleted after peanut oil exposure. Front Immunol 2023; 14:1293158. [PMID: 38022648 PMCID: PMC10655100 DOI: 10.3389/fimmu.2023.1293158] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Peanut allergy is one of the most prevalent food allergies globally. Currently, most research into the mechanisms involved in protein allergy focuses on the protein allergens under investigation, and information on the function of accompanying compounds, such as lipids, is scarce. Thus, this research investigates the role of peanut-associated lipids and invariant natural killer T (iNKT) cells in peanut allergy using a novel, human, in vitro assay. Methods PBMCs from non-allergic and peanut-allergic subjects were stimulated with the glycolipid, α-Galactosylceramide (α-GalCer), over 14 days for iNKT cell expansion. Autologous dendritic cells (DCs) were stimulated with either peanut oil, the lipid-binding peanut allergen, Ara h 8, or both peanut oil and Ara h 8. The expanded iNKT cells were then immunomagnetically isolated and co-cultured for 5 h with autologous DCs, and cytokine expression was measured by flow cytometry. Results A 5-fold higher iNKT cell population was observed in peanut-allergic subject peripheral blood compared to non-allergic controls. In all subjects, conventional flow analysis highlighted iNKTs co-cultured with autologous α-GalCer-pulsed DCs displayed increased IL-4 and IFN-y secretion within 5 hours of co-culture. A 10-parameter unsupervised clustering analysis of iNKT phenotype found significantly more CD3+CD8+CD25+IL-4+IL-5+IL-10+IFNγ+ cells in non-allergic adults following culture with peanut oil. Conclusion For the first time, we show iNKT cells are more abundant in peanut-allergic adults compared to non-allergic adults, and peanut lipid-exposed iNKT cells resulted in the identification of a subset of CD8+ iNKT cells which was significantly lower in peanut-allergic adults. Thus, this study proposes a role for iNKT cells and peanut allergen-associated lipids in peanut allergy.
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Affiliation(s)
- Georgina V. Hopkins
- School of Life Sciences, The University of Nottingham, Nottingham, United Kingdom
| | - Stella Cochrane
- Safety and Environmental Assurance Centre (SEAC), Unilever, Bedford, United Kingdom
| | - David Onion
- School of Life Sciences, The University of Nottingham, Nottingham, United Kingdom
| | - Lucy C. Fairclough
- School of Life Sciences, The University of Nottingham, Nottingham, United Kingdom
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Özuygur Ermis SS, Norouzi A, Borres MP, Basna R, Ekerljung L, Malmhäll C, Goksör E, Wennergren G, Rådinger M, Lötvall J, Kankaanranta H, Nwaru BI. Sensitization patterns to cat molecular allergens in subjects with allergic sensitization to cat dander. Clin Transl Allergy 2023; 13:e12294. [PMID: 37632243 PMCID: PMC10422092 DOI: 10.1002/clt2.12294] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/21/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND The use of molecular allergology has increasingly become common in the diagnosis and management of allergic diseases. However, there is still a lack of data on cat molecular allergens in adults. Therefore, we aimed to uncover the sensitization patterns to cat molecular allergens. METHODS Participants were recruited from the West Asthma Sweden Study, a population-based study enriched with asthma subjects aged 16-75 years. Of 1872, 361 individuals were positive for cat dander immunoglobulin E and were further analysed for cat molecular allergens (Fel d 1/2/4/7). Sensitization patterns were classified as monosensitization, polysensitization, and concomitant sensitization, and were related to demographic and clinical measurements. RESULTS Among cat-sensitized subjects, 84.2% were sensitized to secretoglobin, while 42.4% were sensitized to lipocalins. Nearly half of the subjects were monosensitized to Fel d 1. Polysensitization was observed in 20.2%, and concomitant sensitization to protein families was seen in 7.2%. Asthma prevalence, cat exposure, and rural living were associated with poly- and concomitant sensitization to protein families. Concomitant sensitization to single allergens was more common in those with asthma than in those without, while concomitant sensitization to both Fel d 1 and Fel d 4 was the most common pattern in individuals with asthma. Sensitization patterns also differed according to cat ownership and the degree of urbanization. CONCLUSION Sensitization to molecular allergens was observed in 90.9% of cat-sensitized subjects and showed variations across participants' background characteristics and the presence of asthma. Identification of sensitization patterns to cat allergens might provide better characterization of cat-allergic subjects.
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Affiliation(s)
- Saliha Selin Özuygur Ermis
- Krefting Research CentreInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | | | - Magnus P. Borres
- ImmunoDiagnosticsThermo Fisher ScientificUppsalaSweden
- Department of Maternal and Child HealthUppsala UniversityUppsalaSweden
| | - Rani Basna
- Krefting Research CentreInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Linda Ekerljung
- Krefting Research CentreInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Carina Malmhäll
- Krefting Research CentreInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Emma Goksör
- Department of PediatricsQueen Silvia Children's HospitalUniversity of GothenburgGothenburgSweden
| | - Göran Wennergren
- Department of PediatricsQueen Silvia Children's HospitalUniversity of GothenburgGothenburgSweden
| | - Madeleine Rådinger
- Krefting Research CentreInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Jan Lötvall
- Krefting Research CentreInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Hannu Kankaanranta
- Krefting Research CentreInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Faculty of Medicine and Life SciencesUniversity of TampereTampereFinland
- Department of Respiratory MedicineSeinäjoki Central HospitalSeinäjokiFinland
| | - Bright I. Nwaru
- Krefting Research CentreInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Wallenberg Centre for Molecular and Translational MedicineInstitute of MedicineUniversity of GothenburgGothenburgSweden
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Wenger M, Grosse-Kathoefer S, Kraiem A, Pelamatti E, Nunes N, Pointner L, Aglas L. When the allergy alarm bells toll: The role of Toll-like receptors in allergic diseases and treatment. Front Mol Biosci 2023; 10:1204025. [PMID: 37426425 PMCID: PMC10325731 DOI: 10.3389/fmolb.2023.1204025] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/08/2023] [Indexed: 07/11/2023] Open
Abstract
Toll-like receptors of the human immune system are specialized pathogen detectors able to link innate and adaptive immune responses. TLR ligands include among others bacteria-, mycoplasma- or virus-derived compounds such as lipids, lipo- and glycoproteins and nucleic acids. Not only are genetic variations in TLR-related genes associated with the pathogenesis of allergic diseases, including asthma and allergic rhinitis, their expression also differs between allergic and non-allergic individuals. Due to a complex interplay of genes, environmental factors, and allergen sources the interpretation of TLRs involved in immunoglobulin E-mediated diseases remains challenging. Therefore, it is imperative to dissect the role of TLRs in allergies. In this review, we discuss i) the expression of TLRs in organs and cell types involved in the allergic immune response, ii) their involvement in modulating allergy-associated or -protective immune responses, and iii) how differential activation of TLRs by environmental factors, such as microbial, viral or air pollutant exposure, results in allergy development. However, we focus on iv) allergen sources interacting with TLRs, and v) how targeting TLRs could be employed in novel therapeutic strategies. Understanding the contributions of TLRs to allergy development allow the identification of knowledge gaps, provide guidance for ongoing research efforts, and built the foundation for future exploitation of TLRs in vaccine design.
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Lisik D, Ermis SSÖ, Ioannidou A, Milani GP, Nyassi S, Spolidoro GCI, Kankaanranta H, Goksör E, Wennergren G, Nwaru BI. Birth order, sibship size, and risk of atopic dermatitis, food allergy, and atopy: A systematic review and meta-analysis. Clin Transl Allergy 2023; 13:e12270. [PMID: 37357553 DOI: 10.1002/clt2.12270] [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: 03/20/2023] [Accepted: 05/31/2023] [Indexed: 06/27/2023] Open
Abstract
BACKGROUND Atopic dermatitis and food allergy are two frequently concomitant manifestations of the presence of atopy. A substantial number of studies have been published on the association of birth order and sibship size (number of siblings) with atopic dermatitis, food allergy, and atopy. The present work is the first systematic synthesis of the existing literature on this topic. METHODS Fifteen databases were searched. Screening, data extraction, and quality assessment were performed by independent pairs. Comparable numerical data were statistically synthesized using random-effects robust variance estimation. RESULTS In total, 114 studies were included out of 8819 papers obtained from database searches. Birth order ≥2 versus 1 was associated with lower risk of ever atopic dermatitis (pooled risk ratio [RR] 0.91, 95% CI 0.84-0.98), current food allergy (RR 0.77, 95% CI 0.66-0.90), and positive skin prick test (SPT) to common aeroallergens (RR 0.86, 95% CI 0.77-0.97). Sibship size ≥2 versus 1 was associated with decreased risk of current atopic dermatitis (RR 0.90, 95% CI 0.83-0.98), ever atopic dermatitis (RR 0.92, 95% CI 0.86-0.97), and positive SPT to common aeroallergens (RR 0.88, 95% CI 0.83-0.92). No putative associations were seen regarding atopy assessed through allergen-specific immunoglobulin E with common allergens. CONCLUSION The presence of siblings and being second-born or later may decrease the lifetime risk of atopic dermatitis and food allergy, albeit marginally. Similar association was seen with SPT sensitization. However, significant protection was not found for IgE sensitization.
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Affiliation(s)
- Daniil Lisik
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Saliha Selin Özuygur Ermis
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Athina Ioannidou
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Gregorio Paolo Milani
- Department of Clinical Science and Community Health, University of Milan, Milan, Italy
- Pediatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Sungkutu Nyassi
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | | | - Hannu Kankaanranta
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Tampere University Respiratory Research Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Emma Goksör
- Department of Pediatrics, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Göran Wennergren
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Department of Pediatrics, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Bright Ibeabughichi Nwaru
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
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Agarwal R, Sehgal IS, Muthu V, Dhar R, Armstrong-James D. Allergic bronchopulmonary aspergillosis in India. Clin Exp Allergy 2023. [PMID: 37062874 DOI: 10.1111/cea.14319] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/24/2023] [Accepted: 03/29/2023] [Indexed: 04/18/2023]
Abstract
Allergic bronchopulmonary aspergillosis (ABPA) is a lung disorder caused by immune-mediated reactions mounted against Aspergillus fumigatus. The disorder most commonly complicates the course of patients with asthma and cystic fibrosis. From its first description in 1952, significant advances have been made in understanding the pathogenesis and the diagnosis and treatment of ABPA. In the last two decades, most research on ABPA has been published from India. The prevalence and clinical presentation may differ in India from that reported elsewhere. Herein, we review the epidemiology, clinical and radiological characteristics, and distinctive features of ABPA in the Indian subcontinent. To support the review, we surveyed pulmonologists nationwide to understand the challenges in diagnosing and managing ABPA. The survey has yielded valuable insights into the practices associated with the diagnosis and management of ABPA in India.
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Affiliation(s)
- Ritesh Agarwal
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Inderpaul Singh Sehgal
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Valliappan Muthu
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Raja Dhar
- Department of Pulmonology, CK Birla Hospitals, Kolkata, India
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Palladino C, Ellinger I, Kalic T, Humeniuk P, Ret D, Mayr V, Hafner C, Hemmer W, Hoffmann-Sommergruber K, Untersmayr E, Bublin M, Radauer C, Breiteneder H. Peanut lipids influence the response of bronchial epithelial cells to the peanut allergens Ara h 1 and Ara h 2 by decreasing barrier permeability. Front Mol Biosci 2023; 10:1126008. [PMID: 36845549 PMCID: PMC9945344 DOI: 10.3389/fmolb.2023.1126008] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 01/26/2023] [Indexed: 02/11/2023] Open
Abstract
Background: Peanut-allergic individuals react upon their first known ingestion of peanuts, suggesting sensitization occurs through non-oral exposure. Increasing evidence suggests that the respiratory tract is a probable site for sensitization to environmental peanuts. However, the response of the bronchial epithelium to peanut allergens has never been explored. Furthermore, food matrix-derived lipids play an important role in allergic sensitization. Objective: To contribute to a better understanding of the mechanisms of allergic sensitization to peanuts via inhalation, by exploring the direct effect of the major peanut allergens Ara h 1 and Ara h 2 and peanut lipids on bronchial epithelial cells. Methods: Polarized monolayers of the bronchial epithelial cell line 16HBE14o- were stimulated apically with peanut allergens and/or peanut lipids (PNL). Barrier integrity, transport of allergens across the monolayers, and release of mediators were monitored. Results: Ara h 1 and Ara h 2 impacted the barrier integrity of the 16HBE14o- bronchial epithelial cells and crossed the epithelial barrier. Ara h 1 also induced the release of pro-inflammatory mediators. PNL improved the barrier function of the cell monolayers, decreased paracellular permeability and reduced the amount of allergens crossing the epithelial layer. Conclusion: Our study provides evidence of the transport of Ara h 1 and Ara h 2 across the airway epithelium, of the induction of a pro-inflammatory milieu, and identifies an important role for PNL in controlling the amount of allergens that can cross the epithelial barrier. These, all together, contribute to a better understanding of the effects of peanuts exposure on the respiratory tract.
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Affiliation(s)
- Chiara Palladino
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Isabella Ellinger
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Tanja Kalic
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria,Department of Dermatology, University Hospital St. Pölten, Karl Landsteiner University of Health Sciences, St. Pölten, Austria
| | - Piotr Humeniuk
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Davide Ret
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria,Division of Macromolecular Chemistry, Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
| | - Vanessa Mayr
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Christine Hafner
- Department of Dermatology, University Hospital St. Pölten, Karl Landsteiner University of Health Sciences, St. Pölten, Austria,Karl Landsteiner Institute for Dermatological Research, St. Pölten, Austria
| | | | - Karin Hoffmann-Sommergruber
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Eva Untersmayr
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Merima Bublin
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Christian Radauer
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Heimo Breiteneder
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria,*Correspondence: Heimo Breiteneder,
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12
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Zuurveld M, Díaz CB, Redegeld F, Folkerts G, Garssen J, van’t Land B, Willemsen LE. An advanced in vitro human mucosal immune model to predict food sensitizing allergenicity risk: A proof of concept using ovalbumin as model allergen. Front Immunol 2023; 13:1073034. [PMID: 36700233 PMCID: PMC9869142 DOI: 10.3389/fimmu.2022.1073034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023] Open
Abstract
Background The global demand of sustainable food sources leads to introduction of novel foods on the market, which may pose a risk of inducing allergic sensitization. Currently there are no validated in vitro assays mimicking the human mucosal immune system to study sensitizing allergenicity risk of novel food proteins. The aim of this study was to introduce a series of sequential human epithelial and immune cell cocultures mimicking key immune events after exposure to the common food allergen ovalbumin from intestinal epithelial cell (IEC) activation up to mast cell degranulation. Methods This in vitro human mucosal food sensitizing allergenicity model combines crosstalk between IEC and monocyte-derived dendritic cells (moDC), followed by coculture of the primed moDCs with allogenic naïve CD4+ T cells. During subsequent coculture of primed CD4+ T cells with naïve B cells, IgE isotype-switching was monitored and supernatants were added to primary human mast cells to investigate degranulation upon IgE crosslinking. Mediator secretion and surface marker expression of immune cells were determined. Results Ovalbumin activates IEC and underlying moDCs, both resulting in downstream IgE isotype-switching. However, only direct exposure of moDCs to ovalbumin drives Th2 polarization and a humoral B cell response allowing for IgE mediated mast cell degranulation, IL13 and IL4 release in this sequential DC-T cell-B cell-mast cell model, indicating also an immunomodulatory role for IEC. Conclusion This in vitro coculture model combines multiple key events involved in allergic sensitization from epithelial cell to mast cell, which can be applied to study the allergic mechanism and sensitizing capacity of proteins.
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Affiliation(s)
- Marit Zuurveld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands,*Correspondence: Marit Zuurveld, ; Linette E.M. Willemsen,
| | - Cristina Bueno Díaz
- Chemical Biology and Drug Discovery Group, Department of Pharmacological Sciences, Utrecht University, Utrecht, Netherlands
| | - Frank Redegeld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Gert Folkerts
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands,Immunology Platform, Danone Nutricia Research B.V., Utrecht, Netherlands
| | - Belinda van’t Land
- Immunology Platform, Danone Nutricia Research B.V., Utrecht, Netherlands,Center for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Linette E.M. Willemsen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands,*Correspondence: Marit Zuurveld, ; Linette E.M. Willemsen,
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13
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Li R, Lau HX, Yap QV, Chan YH, Tham EH, Goh AEN, Van Bever H, Eriksson JG, Chan S, Tan KH, Chong YS, Lee BW, Shek LP, Yap FKP, Calder PC, Godfrey KM, Chong MF, Loo EXL. Maternal polyunsaturated fatty acids and allergic disease development in the offspring. Pediatr Allergy Immunol 2022; 33:e13876. [PMID: 36433851 PMCID: PMC10946560 DOI: 10.1111/pai.13876] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/10/2022] [Accepted: 10/23/2022] [Indexed: 11/13/2022]
Affiliation(s)
- Ruyu Li
- Singapore Institute for Clinical SciencesAgency for Science, Technology and ResearchSingaporeSingapore
| | - Hui Xing Lau
- Singapore Institute for Clinical SciencesAgency for Science, Technology and ResearchSingaporeSingapore
| | - Qai Ven Yap
- Department of Biostatistics, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Yiong Huak Chan
- Department of Biostatistics, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Elizabeth Huiwen Tham
- Singapore Institute for Clinical SciencesAgency for Science, Technology and ResearchSingaporeSingapore
- Department of Paediatrics, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Khoo Teck Puat‐National University Children's Medical InstituteNational University Hospital, National University Health SystemSingaporeSingapore
- Human Potential Translational Research Programme, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Anne Eng Neo Goh
- Allergy Service, Department of PaediatricsKK Women's and Children's HospitalSingaporeSingapore
| | - Hugo Van Bever
- Department of Paediatrics, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Johan Gunnar Eriksson
- Singapore Institute for Clinical SciencesAgency for Science, Technology and ResearchSingaporeSingapore
- Human Potential Translational Research Programme, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of MedicineNational University of Singapore and National University Health SystemSingaporeSingapore
- Folkhälsan Research CenterHelsinkiFinland
- Department of General Practice and Primary Health CareUniversity of HelsinkiHelsinkiFinland
| | - Shiao‐Yng Chan
- Singapore Institute for Clinical SciencesAgency for Science, Technology and ResearchSingaporeSingapore
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of MedicineNational University of Singapore and National University Health SystemSingaporeSingapore
| | - Kok Hian Tan
- Department of Maternal Fetal MedicineKK Women's and Children's Hospital (KKH)SingaporeSingapore
| | - Yap Seng Chong
- Singapore Institute for Clinical SciencesAgency for Science, Technology and ResearchSingaporeSingapore
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of MedicineNational University of Singapore and National University Health SystemSingaporeSingapore
| | - Bee Wah Lee
- Department of Paediatrics, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Lynette Pei‐chi Shek
- Department of Paediatrics, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Fabian Kok Peng Yap
- Duke‐NUS Medical SchoolSingaporeSingapore
- Lee Kong Chian School of MedicineNanyang Technological UniversitySingaporeSingapore
- Endocrinology Service, Department of PaediatricsKK Women's and Children's HospitalSingaporeSingapore
| | - Philip C. Calder
- School of Human Development and Health, Faculty of MedicineUniversity of SouthamptonSouthamptonUK
- NIHR Southampton Biomedical Research CentreUniversity Hospital Southampton NHS Foundation Trust and University of SouthamptonSouthamptonUK
| | - Keith M. Godfrey
- School of Human Development and Health, Faculty of MedicineUniversity of SouthamptonSouthamptonUK
- NIHR Southampton Biomedical Research CentreUniversity Hospital Southampton NHS Foundation Trust and University of SouthamptonSouthamptonUK
- MRC Lifecourse Epidemiology Unit, Faculty of MedicineUniversity of SouthamptonSouthamptonUK
| | - Mary Foong‐Fong Chong
- Singapore Institute for Clinical SciencesAgency for Science, Technology and ResearchSingaporeSingapore
- Saw Swee Hock School of Public HealthNational University of SingaporeSingaporeSingapore
| | - Evelyn Xiu Ling Loo
- Singapore Institute for Clinical SciencesAgency for Science, Technology and ResearchSingaporeSingapore
- Department of Paediatrics, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Human Potential Translational Research Programme, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
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14
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Lee HJ, Tsai HJ, Huang HY, Gau CC, Ho CH, Huang JL, Yao TC. Cord blood IgE predicts allergic sensitization, elevation of exhaled nitric oxide, and asthma in schoolchildren. Pediatr Allergy Immunol 2022; 33:e13838. [PMID: 36003048 PMCID: PMC9541746 DOI: 10.1111/pai.13838] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 06/24/2022] [Accepted: 07/17/2022] [Indexed: 12/02/2022]
Abstract
BACKGROUND Few data are available in Asian children regarding the validity of cord blood immunoglobulin E (IgE) in predicting allergic sensitization and pulmonary function. The relationship between cord blood IgE and fraction of exhaled nitric oxide (FeNO) remains unknown. This study investigated the associations of cord blood IgE with allergic sensitization, FeNO, pulmonary function, and allergic diseases in Asian children. METHODS Five hundred and sixty-six Asian children with valid cord blood IgE measurements at birth participated a 6-year follow-up visit including a questionnaire, serum total and allergen-specific IgE, FeNO measurement, and spirometry. Regression-based analyses with covariates adjustment were applied. RESULTS Cord blood IgE levels were significantly associated with FeNO levels (β = 0.131, p < .001) and serum total IgE levels (β = 0.325, p < .001). Cord blood IgE levels were positively associated with allergic sensitization (adjusted odds ratio [AOR] = 2.22, p < .001), and sensitization to mites (p = .002), animals (p = .023), and foods (p = .048). Subjects with cord blood IgE ≥0.24 kU/L (the optimal cutoff) were significantly associated with an increased risk of allergic sensitization (AOR = 2.63, p < .001) and asthma (AOR = 2.35, p = .024) than those with cord blood IgE <0.24 kU/L. Subjects with cord blood IgE ≥0.24 kU/L had significantly higher FeNO levels than those with cord blood IgE <0.24 kU/L (p = .028). There were no significant associations between cord blood IgE levels and pulmonary function parameters. CONCLUSION Cord blood IgE ≥0.24 kU/L predicts allergic sensitization, FeNO elevation, and asthma among Asian schoolchildren, suggesting cord blood IgE would be useful for identifying newborns at risk of subsequent allergic sensitization and allergic airway inflammation.
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Affiliation(s)
- Hsin-Ju Lee
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Hui-Ju Tsai
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Hsin-Yi Huang
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chun-Chun Gau
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Division of Pediatric General Medicine, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Pediatrics, New Taipei Municipal TuCheng Hospital, New Taipei, Taiwan
| | - Chia-Hua Ho
- Department of Medical Education, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Jing-Long Huang
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Pediatrics, New Taipei Municipal TuCheng Hospital, New Taipei, Taiwan.,School of Medicine, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Tsung-Chieh Yao
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan.,School of Medicine, Chang Gung University College of Medicine, Taoyuan, Taiwan
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15
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Wärnberg Gerdin S, Lie A, Asarnoj A, Borres MP, Lødrup Carlsen KC, Färdig M, Konradsen JR, Monceyron Jonassen C, Olsson Mägi C, Rehbinder EM, Rudi K, Skjerven HO, Staff AC, Söderhäll C, Tedner SG, Hage M, Vettukattil R, Nordlund B. Impaired skin barrier and allergic sensitization in early infancy. Allergy 2022; 77:1464-1476. [PMID: 34738238 DOI: 10.1111/all.15170] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [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: 07/07/2021] [Revised: 05/18/2021] [Accepted: 10/15/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Factors predicting allergic sensitization in the first 6 months of life are poorly understood. We aimed to determine whether eczema, dry skin, and high transepidermal water loss (TEWL) at 3 months were associated with allergic sensitization at 6 months of age and, secondarily, to establish whether these characteristics predicted sensitization from 3 to 6 months of age. METHODS At 3 months of age, 1,994 infants from the population-based PreventADALL birth cohort in Norway and Sweden were assessed for eczema and dry skin on the cheeks and/or extensors; impaired skin barrier function, defined as TEWL in the upper quartile (>9.4 g/m2 /h), and allergen-specific IgE levels <0.1 kUA /L, available in 830. At 6 months, we assessed allergic sensitization to any food (egg, cow's milk, peanut, wheat, soy) or inhalant (birch, timothy grass, dog, and cat) allergen by a skin prick test wheal diameter ≥2 mm larger than negative control. RESULTS Any sensitization was found in 198 of the 1,994 infants (9.9%), the majority to food allergens (n = 177, 8.9%). Eczema, dry skin, and high TEWL at 3 months increased the risk of sensitization at 6 months; adjusted odds ratios 4.20 (95% CI 2.93-6.04), 2.09 (95% CI 1.51-2.90) and 3.67 (95% CI 2.58-5.22), respectively. Eczema predicted sensitization with 55.6% sensitivity and 68.1% specificity; dry skin with 65.3% sensitivity and 57.3% specificity; and high TEWL with 61.7% sensitivity and 78.1% specificity. CONCLUSION Eczema, dry skin, and high TEWL at 3 months predicted allergic sensitization at 6 months of age.
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Affiliation(s)
- Sabina Wärnberg Gerdin
- Astrid Lindgren Children’s Hospital Karolinska University Hospital Stockholm Sweden
- Department of Women’s and Children’s Health Karolinska Institutet Stockholm Sweden
| | - Anine Lie
- Division of Paediatric and Adolescent Medicine Oslo University Hospital Oslo Norway
- Faculty of Medicine Institute of Clinical Medicine University of Oslo Oslo Norway
| | - Anna Asarnoj
- Astrid Lindgren Children’s Hospital Karolinska University Hospital Stockholm Sweden
- Department of Women’s and Children’s Health Karolinska Institutet Stockholm Sweden
| | - Magnus P. Borres
- Department of Women’s and Children’s Health Uppsala University Uppsala Sweden
| | - Karin C. Lødrup Carlsen
- Division of Paediatric and Adolescent Medicine Oslo University Hospital Oslo Norway
- Faculty of Medicine Institute of Clinical Medicine University of Oslo Oslo Norway
| | - Martin Färdig
- Astrid Lindgren Children’s Hospital Karolinska University Hospital Stockholm Sweden
- Department of Women’s and Children’s Health Karolinska Institutet Stockholm Sweden
| | - Jon R. Konradsen
- Astrid Lindgren Children’s Hospital Karolinska University Hospital Stockholm Sweden
- Department of Women’s and Children’s Health Karolinska Institutet Stockholm Sweden
| | - Christine Monceyron Jonassen
- Genetic Unit Centre for Laboratory Medicine Østfold Hospital Trust Kalnes Norway
- Faculty of Chemistry, Biotechnology and Food Science Norwegian University of Life Sciences Ås Norway
| | - Caroline‐Aleksi Olsson Mägi
- Astrid Lindgren Children’s Hospital Karolinska University Hospital Stockholm Sweden
- Department of Women’s and Children’s Health Karolinska Institutet Stockholm Sweden
| | - Eva Maria Rehbinder
- Faculty of Medicine Institute of Clinical Medicine University of Oslo Oslo Norway
- Department of Dermatology Oslo University Hospital Oslo Norway
| | - Knut Rudi
- Faculty of Chemistry, Biotechnology and Food Science Norwegian University of Life Sciences Ås Norway
| | - Håvard Ove Skjerven
- Division of Paediatric and Adolescent Medicine Oslo University Hospital Oslo Norway
- Faculty of Medicine Institute of Clinical Medicine University of Oslo Oslo Norway
| | - Anne Cathrine Staff
- Faculty of Medicine Institute of Clinical Medicine University of Oslo Oslo Norway
- Division of Obstetrics and Gynaecology Oslo University Hospital Oslo Norway
| | - Cilla Söderhäll
- Astrid Lindgren Children’s Hospital Karolinska University Hospital Stockholm Sweden
- Department of Women’s and Children’s Health Karolinska Institutet Stockholm Sweden
| | - Sandra G. Tedner
- Astrid Lindgren Children’s Hospital Karolinska University Hospital Stockholm Sweden
- Department of Women’s and Children’s Health Karolinska Institutet Stockholm Sweden
| | - Marianne Hage
- Department of Medicine Solna Division of Immunology and Allergy Karolinska Institutet and Karolinska University Hospital Stockholm Sweden
| | - Riyas Vettukattil
- Division of Paediatric and Adolescent Medicine Oslo University Hospital Oslo Norway
- Faculty of Medicine Institute of Clinical Medicine University of Oslo Oslo Norway
| | - Björn Nordlund
- Astrid Lindgren Children’s Hospital Karolinska University Hospital Stockholm Sweden
- Department of Women’s and Children’s Health Karolinska Institutet Stockholm Sweden
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16
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Hopkins GV, Cochrane S, Onion D, Fairclough LC. The Role of Lipids in Allergic Sensitization: A Systematic Review. Front Mol Biosci 2022; 9:832330. [PMID: 35495627 PMCID: PMC9047936 DOI: 10.3389/fmolb.2022.832330] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/04/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Immunoglobulin E (IgE)-mediated allergies are increasing in prevalence, with IgE-mediated food allergies currently affecting up to 10% of children and 6% of adults worldwide. The mechanisms underpinning the first phase of IgE-mediated allergy, allergic sensitization, are still not clear. Recently, the potential involvement of lipids in allergic sensitization has been proposed, with reports that they can bind allergenic proteins and act on immune cells to skew to a T helper type 2 (Th2) response. Objectives: The objective of this systematic review is to determine if there is strong evidence for the role of lipids in allergic sensitization. Methods: Nineteen studies were reviewed, ten of which were relevant to lipids in allergic sensitization to food allergens, nine relevant to lipids in aeroallergen sensitization. Results: The results provide strong evidence for the role of lipids in allergies. Intrinsic lipids from allergen sources can interact with allergenic proteins to predominantly enhance but also inhibit allergic sensitization through various mechanisms. Proposed mechanisms included reducing the gastrointestinal degradation of allergenic proteins by altering protein structure, reducing dendritic cell (DC) uptake of allergenic proteins to reduce immune tolerance, regulating Th2 cytokines, activating invariant natural killer T (iNKT) cells through CD1d presentation, and directly acting upon toll-like receptors (TLRs), epithelial cells, keratinocytes, and DCs. Conclusion: The current literature suggests intrinsic lipids are key influencers of allergic sensitization. Further research utilising human relevant in vitro models and clinical studies are needed to give a reliable account of the role of lipids in allergic sensitization.
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Affiliation(s)
- Georgina V. Hopkins
- School of Life Sciences, The University of Nottingham, Nottingham, United Kingdom
| | - Stella Cochrane
- SEAC, Unilever, Colworth Science Park, Sharnbrook, United Kingdom
| | - David Onion
- School of Life Sciences, The University of Nottingham, Nottingham, United Kingdom
| | - Lucy C. Fairclough
- School of Life Sciences, The University of Nottingham, Nottingham, United Kingdom
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17
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Lau HX, Kee MZL, Yap QV, Tham EH, Chan YH, Goh AEN, Teoh OH, Eriksson JG, Godfrey KM, Gluckman PD, Chong YS, Chan JKY, Van Bever H, Lee BW, Shek LPC, Meaney MJ, Loo EXL. Associations Between Maternal Distress During Early Life Periods and Offspring Respiratory Infections and Allergic Outcomes. Front Pediatr 2022; 10:749323. [PMID: 35433563 PMCID: PMC9006870 DOI: 10.3389/fped.2022.749323] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 02/16/2022] [Indexed: 11/06/2022] Open
Abstract
Background Increasing evidence suggests that maternal distress is a risk factor for development of respiratory infections and allergic diseases in the offspring. We aim to evaluate the link between maternal distress during critical periods in early life, namely the preconception, pregnancy and postnatal periods, and development of respiratory infections and allergic diseases in the offspring from the Singapore PREconception Study of long Term maternal and child Outcomes (S-PRESTO) cohort. Methods Maternal perceived distress was evaluated using validated questionnaires including Beck Depression Inventory-II (BDI-II) administered during three time periods: preconception (three months apart at four timepoints), pregnancy (during each trimester) and postnatal (3 and 6 months post-delivery). Child eczema, rhinitis and wheeze outcomes were evaluated using a modified ISAAC questionnaire at ages 3, 6, 12, and 18 months. Child allergic sensitization was determined by skin prick testing at 18 months. Results Among 332 mother-child pairs studied, higher maternal distress during preconception and pregnancy increased the risks of wheeze development in the first 18 months; for example, preconception and pregnancy BDI-II scores ≥20 were associated with increased risks of wheeze by 18 months [adjusted risk ratios 3.2 (95%CI 1.1-9.4) and 2.5 (1.0-5.9), respectively]. Emotional and practical support from family during preconception decreased the risks of offspring wheeze. No associations were observed between maternal distress and offspring eczema, rhinitis and allergic sensitization. Conclusion Maternal distress during critical early life periods was associated with offspring wheeze in the first 18 months of life. Supporting maternal mental health even before pregnancy could reduce the risk of offspring wheeze.
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Affiliation(s)
- Hui Xing Lau
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
| | - Michelle Zhi Ling Kee
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
| | - Qai Ven Yap
- Department of Biostatistics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Elizabeth Huiwen Tham
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore, Singapore
- Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yiong Huak Chan
- Department of Biostatistics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Anne Eng Neo Goh
- Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
| | - Oon Hoe Teoh
- Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
| | - Johan Gunnar Eriksson
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
- Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore
- Folkhälsan Research Center, Helsinki, Finland
- Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland
| | - Keith M. Godfrey
- MRC Lifecourse Epidemiology Unit and NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom
| | - Peter D. Gluckman
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
- Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Yap Seng Chong
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore
| | - Jerry Kok Yen Chan
- Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore, Singapore
- Academic Program in Obstetrics and Gynaecology, Duke-NUS Medical School, Singapore, Singapore
| | - Hugo Van Bever
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Bee Wah Lee
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lynette Pei-chi Shek
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Michael J. Meaney
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
- Department of Psychiatry, Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada
- Sackler Program for Epigenetics and Psychobiology, McGill University, Montreal, QC, Canada
- Ludmer Centre for Neuroinformatics and Mental Health, McGill University, Montréal, QC, Canada
| | - Evelyn Xiu Ling Loo
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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18
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Yanagisawa R, Ishimine N, Komori K, Kurata T, Saito S, Tanaka M, Sakashita K, Tozuka M, Nakazawa Y. Relationship between allergic transfusion reactions and allergic predisposition among pediatric patients with hematological/oncological disease. Transfusion 2022; 62:1035-1044. [PMID: 35297063 DOI: 10.1111/trf.16855] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 12/14/2021] [Revised: 02/03/2022] [Accepted: 03/06/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Allergic transfusion reactions (ATRs) manifest frequently as transfusion reactions, and their onset may be related to a patient's allergic predisposition. Moreover, although pediatric patients with hematological/oncological disease are more susceptible to ATRs, the relationship between allergic predisposition and ATRs remains to be fully clarified. STUDY DESIGN AND METHODS Patients who were diagnosed with pediatric hematological/oncological disease and received transfusion at the study institutions were included. We determined patient background information related to their allergy history, measured the levels of allergen-specific immunoglobulin E (IgE) using sera obtained on diagnosis, and analyzed their associations with ATR onset. RESULTS Of the 363 patients analyzed, 144 developed ATRs. Multivariate analysis identified cases with high basophils in the peripheral blood, and Dermatophagoides pteronyssinus- and egg white-specific IgEs were involved in the development of ATR in all age groups. Meanwhile, a history of food allergies, and positivity for Japanese cypress- and D. pteronyssinus-specific IgEs were risk factors for developing ATRs in the <5 years age group. Moreover, patients aged 5-<10 years with a history of asthma, allergic rhinitis, pollinosis, or atopic dermatitis, and those aged ≥10 years with positivity for dog dander-specific IgE were at risk for developing ATRs. CONCLUSION The allergic constitution of patients plays a role in ATR onset even in pediatric hematological/oncological diseases. Therefore, advance confirmation of a patient's allergic constitution may partly predict the onset of ATRs. However, since multiple allergic predispositions within complex mechanisms may be involved in the onset of ATRs, further verification is required.
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Affiliation(s)
- Ryu Yanagisawa
- Division of Blood Transfusion, Shinshu University Hospital, Matsumoto, Japan.,Center for Advanced Cell Therapy, Shinshu University Hospital, Matsumoto, Japan.,Life Science Research Center, Nagano Children's Hospital, Azumino, Japan
| | - Nau Ishimine
- Department of Laboratory Medicine, Shinshu University Hospital, Matsumoto, Japan
| | - Kazutoshi Komori
- Department of Hematology and Oncology, Nagano Children's Hospital, Azumino, Japan
| | - Takashi Kurata
- Department of Hematology and Oncology, Nagano Children's Hospital, Azumino, Japan
| | - Shoji Saito
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - Miyuki Tanaka
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kazuo Sakashita
- Life Science Research Center, Nagano Children's Hospital, Azumino, Japan.,Department of Hematology and Oncology, Nagano Children's Hospital, Azumino, Japan
| | - Minoru Tozuka
- Life Science Research Center, Nagano Children's Hospital, Azumino, Japan.,Department of Laboratory Medicine, Nagano Children's Hospital, Azumino, Japan
| | - Yozo Nakazawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
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19
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Ryu SH, Shin HS, Eum HH, Park JS, Choi W, Na HY, In H, Kim TG, Park S, Hwang S, Sohn M, Kim ED, Seo KY, Lee HO, Lee MG, Chu MK, Park CG. Granulocyte Macrophage-Colony Stimulating Factor Produces a Splenic Subset of Monocyte-Derived Dendritic Cells That Efficiently Polarize T Helper Type 2 Cells in Response to Blood-Borne Antigen. Front Immunol 2022; 12:767037. [PMID: 35069539 PMCID: PMC8778578 DOI: 10.3389/fimmu.2021.767037] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/06/2021] [Indexed: 12/24/2022] Open
Abstract
Dendritic cells (DCs) are key antigen-presenting cells that prime naive T cells and initiate adaptive immunity. Although the genetic deficiency and transgenic overexpression of granulocyte macrophage-colony stimulating factor (GM-CSF) signaling were reported to influence the homeostasis of DCs, the in vivo development of DC subsets following injection of GM-CSF has not been analyzed in detail. Among the treatment of mice with different hematopoietic cytokines, only GM-CSF generates a distinct subset of XCR1-33D1- DCs which make up the majority of DCs in the spleen after three daily injections. These GM-CSF-induced DCs (GMiDCs) are distinguished from classical DCs (cDCs) in the spleen by their expression of CD115 and CD301b and by their superior ability to present blood-borne antigen and thus to stimulate CD4+ T cells. Unlike cDCs in the spleen, GMiDCs are exceptionally effective to polarize and expand T helper type 2 (Th2) cells and able to induce allergic sensitization in response to blood-borne antigen. Single-cell RNA sequencing analysis and adoptive cell transfer assay reveal the sequential differentiation of classical monocytes into pre-GMiDCs and GMiDCs. Interestingly, mixed bone marrow chimeric mice of Csf2rb+/+ and Csf2rb-/- demonstrate that the generation of GMiDCs necessitates the cis expression of GM-CSF receptor. Besides the spleen, GMiDCs are generated in the CCR7-independent resident DCs of the LNs and in some peripheral tissues with GM-CSF treatment. Also, small but significant numbers of GMiDCs are generated in the spleen and other tissues during chronic allergic inflammation. Collectively, our present study identifies a splenic subset of CD115hiCD301b+ GMiDCs that possess a strong capacity to promote Th2 polarization and allergic sensitization against blood-borne antigen.
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Affiliation(s)
- Seul Hye Ryu
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea.,Immune and Vascular Cell Network Research Center, National Creative Initiatives, Department of Life Sciences, Ewha Womans University, Seoul, South Korea
| | - Hyun Soo Shin
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Hye Hyeon Eum
- Department of Biomedicine and Health Sciences, Graduate School, The Catholic University of Korea, Seoul, South Korea.,Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Ji Soo Park
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Wanho Choi
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Hye Young Na
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Department of Neurology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Hyunju In
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae-Gyun Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Sejung Park
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Soomin Hwang
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Moah Sohn
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 FOUR Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Eun-Do Kim
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Hae-Ock Lee
- Department of Biomedicine and Health Sciences, Graduate School, The Catholic University of Korea, Seoul, South Korea.,Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Min-Geol Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Min Kyung Chu
- Department of Neurology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Chae Gyu Park
- Laboratory of Immunology, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Therapeutic Antibody Research Center, Genuv Inc., Seoul, South Korea.,Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
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20
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Kim KW, Kim DY, Yoon D, Kim KK, Jang H, Schoettler N, Kim EG, Kim MN, Hong JY, Lee JK, Kim S, Ober C, Gee HY, Sohn MH. Genome-wide association study identifies TNFSF15 associated with childhood asthma. Allergy 2022; 77:218-229. [PMID: 34022066 PMCID: PMC8606614 DOI: 10.1111/all.14952] [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: 12/15/2020] [Revised: 03/30/2021] [Accepted: 04/25/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Genome-wide association studies (GWASs) of asthma have identified several risk alleles and loci, but most have been conducted in individuals with European-ancestry. Studies in Asians, especially children, are still lacking. We aimed to identify susceptibility loci by performing the first GWAS of asthma in Korean children with persistent asthma. METHODS We used a discovery set of 741 children with persistent asthma as cases and 589 healthy children and 551 healthy adults as controls to perform a GWAS. We validated our GWAS findings using UK Biobank data. We then used the Genotype-Tissue Expression database to identify expression quantitative trait loci of candidate variants. Finally, we quantified proteins of genes associated with asthma. RESULTS Variants at the 17q12-21 locus and SNPs in CYBRD1 and TNFSF15 genes were associated with persistent childhood asthma at genome-wide thresholds of significance. Four SNPs in the TNFSF15 gene were also associated with childhood-onset asthma in British white participants in the UK Biobank data. The asthma-associated rs7856856-C allele, the lead SNP, was associated with decreased TNFSF15 expression in whole blood and in arteries. Korean children with asthma had lower serum TNFSF15 levels than controls, and those with the asthma risk rs7856856-CC genotype exhibited the lowest serum TNFSF15 levels overall, especially asthmatic children. CONCLUSIONS Our GWAS of persistent childhood asthma with allergic sensitization identified a new susceptibility gene, TNFSF15, and replicated associations at the 17q12-21 childhood-onset asthma locus. This novel association may be mediated by reduced expression of serum TNFSF15 and loss of suppression of angiogenesis.
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Affiliation(s)
- Kyung Won Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Yun Kim
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea,Department of Medicine, Physician-Scientist Program, Yonsei University Graduate School of Medicine, Seoul, Korea
| | - Dankyu Yoon
- Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence Research, National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju, Korea
| | - Ka-Kyung Kim
- Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Korea
| | - Haerin Jang
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | | | - Eun Gyul Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Mi Na Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Yeon Hong
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Jeom-Kyu Lee
- Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence Research, National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju, Korea
| | - Sangwoo Kim
- Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Korea
| | - Carole Ober
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | - Heon Yung Gee
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Myung Hyun Sohn
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
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21
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Reinert-Hartwall L, Siljander H, Härkönen T, Vatanen T, Ilonen J, Niemelä O, Luopajärvi K, Dorshakova N, Mokurov S, Peet A, Tillmann V, Uibo R, Knip M, Vaarala O, Honkanen J. Higher circulating EGF levels associate with a decreased risk of IgE sensitization in young children. Pediatr Allergy Immunol 2022; 33:e13613. [PMID: 34379817 DOI: 10.1111/pai.13613] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 07/28/2021] [Accepted: 08/04/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Decreased exposure to microbial agents in industrialized countries and urban living areas is considered as a risk factor of developing immune-mediated diseases, such as allergies and asthma. Epithelial surfaces in the gastrointestinal and respiratory tracts and in the skin constitute the primary areas in contact with the environmental microbial load. METHODS We analyzed the levels of 30 cytokines and growth factors in serum or plasma as markers of the immune maturation in the participants in the DIABIMMUNE study from Russian Karelia (n = 60), Estonia (n = 83) and Finland (n = 89), three neighboring countries with remarkable differences in the incidences of allergies, asthma and autoimmune diseases. RESULTS We observed an upregulation of T helper cell signature cytokines during the first 12 months of life, reflecting natural development of adaptive immune responses. During the first years of life, circulating concentrations of epidermal growth factor (EGF) were significantly higher, especially in Russian children compared with Finnish children. The children who developed IgE sensitization showed lower levels of EGF than those without such responses. CONCLUSION Our results suggest that low circulating EGF levels associate with the risk of allergies possibly via the effects on the epithelial integrity and mucosal homeostasis.
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Affiliation(s)
| | - Heli Siljander
- Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland.,Pediatric Research Center, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Taina Härkönen
- Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland
| | - Tommi Vatanen
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Jorma Ilonen
- Immunogenetics Laboratory, University of Turku, Turku, Finland
| | - Onni Niemelä
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital and University of Tampere, Seinäjoki, Finland
| | - Kristiina Luopajärvi
- Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland.,Pediatric Research Center, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Natalya Dorshakova
- Department of Family Medicine, Petrozavodsk State University, Petrozavodsk, Russia
| | - Sergei Mokurov
- Ministry of Health and Social Development, Karelian Republic of the Russian Federation, Petrozavodsk, Russia
| | - Aleksandr Peet
- Children's Clinic of Tartu University Hospital, Tartu, Estonia
| | - Vallo Tillmann
- Children's Clinic of Tartu University Hospital, Tartu, Estonia
| | - Raivo Uibo
- Department of Immunology, Institute of Biomedicine and Translational Medicine, Centre of Excellence for Translational Medicine, University of Tartu, Tartu, Estonia
| | - Mikael Knip
- Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland.,Pediatric Research Center, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Department of Pediatrics, Tampere University Hospital, Tampere, Finland.,Folkhälsan Research Center, Helsinki, Finland
| | - Outi Vaarala
- Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland
| | - Jarno Honkanen
- Research Program for Translational Immunology, University of Helsinki, Helsinki, Finland
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22
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Custovic A, Siddiqui S, Saglani S. Considering biomarkers in asthma disease severity. J Allergy Clin Immunol 2021; 149:480-487. [PMID: 34942235 DOI: 10.1016/j.jaci.2021.11.021] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 10/19/2022]
Abstract
Amongst patients with asthma, reliance on the type/dose of prescribed medication and symptom control does not adequately capture those at risk of adverse outcomes, and we need biomarkers for risk and treatment stratification which are consistently accurate, readily quantifiable and reproducible. The majority of patients with severe asthma, regardless of age, have predominant type-2 (T2) inflammation mediated disease, making airway/blood eosinophils, FeNO, periostin and/or allergic sensitization potentially important biomarkers for severe disease. In both adult and pediatric asthma, there is scope to improve prediction of severe attacks by using a composite T2 biomarkers of blood eosinophils and FeNO. Technological advances in component-resolved diagnostics (CRD) microarray technologies coupled with the development of interpretation software offer a possibility to use CRD as biomarkers of asthma severity amongst sensitized asthmatics. Genetic predisposition and polygenic risk scores of relevant traits (e.g., lung function, host immune responses, biomarkers of exposure from the indoor and outdoor environment, infection and microbial dysbiosis) may also contribute to prediction algorithms. We challenge the idea that asthma can be accurately defined in an individual patient by a discrete and static "endotype" (e.g., T2-high asthma). As we traverse the new era of molecular endotyping in asthma, we need to understand how relevant mechanisms impact patient outcomes, and in parallel develop new tools and approaches to stratify therapies and define individual patient trajectories.
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Affiliation(s)
- Adnan Custovic
- National Heart and Lung Institute, Imperial College London, UK.
| | - Salman Siddiqui
- Department of Respiratory Sciences, University of Leicester and NIHR Respiratory Biomedical Research Unit, Glenfield Hospital, Leicester UK
| | - Sejal Saglani
- National Heart and Lung Institute, Imperial College London, UK
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23
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Parrish A, Boudaud M, Kuehn A, Ollert M, Desai MS. Intestinal mucus barrier: a missing piece of the puzzle in food allergy. Trends Mol Med 2021; 28:36-50. [PMID: 34810087 DOI: 10.1016/j.molmed.2021.10.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [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: 08/18/2021] [Revised: 10/22/2021] [Accepted: 10/22/2021] [Indexed: 12/13/2022]
Abstract
The prevalence of food allergies has reached epidemic levels but the cause remains largely unknown. We discuss the clinical relevance of the gut mucosal barrier as a site for allergic sensitization to food. In this context, we focus on an important but overlooked part of the mucosal barrier in pathogenesis, the glycoprotein-rich mucus layer, and call attention to both beneficial and detrimental aspects of mucus-gut microbiome interactions. Studying the intricate links between the mucus barrier, the associated bacteria, and the mucosal immune system may advance our understanding of the mechanisms and inform prevention and treatment strategies in food allergy.
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Affiliation(s)
- Amy Parrish
- Department of Infection and Immunity, Luxembourg Institute of Health, 4354 Esch-sur-Alzette, Luxembourg; Faculty of Science, Technology and Medicine, University of Luxembourg, 4365 Esch-sur-Alzette, Luxembourg
| | - Marie Boudaud
- Department of Infection and Immunity, Luxembourg Institute of Health, 4354 Esch-sur-Alzette, Luxembourg
| | - Annette Kuehn
- Department of Infection and Immunity, Luxembourg Institute of Health, 4354 Esch-sur-Alzette, Luxembourg
| | - Markus Ollert
- Department of Infection and Immunity, Luxembourg Institute of Health, 4354 Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, 5000 Odense, Denmark
| | - Mahesh S Desai
- Department of Infection and Immunity, Luxembourg Institute of Health, 4354 Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, 5000 Odense, Denmark.
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24
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Kim SY, Kim EG, Kim M, Hong JY, Kim GE, Jung JH, Park M, Kim MJ, Kim YH, Sohn MH, Kim KW. Genome-wide association study identifies BTNL2 associated with atopic asthma in children. Medicine (Baltimore) 2021; 100:e27626. [PMID: 34871226 PMCID: PMC8568460 DOI: 10.1097/md.0000000000027626] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 10/06/2021] [Indexed: 01/05/2023] Open
Abstract
Asthma is a heterogeneous disease characterized by chronic airway inflammation with a genetic predisposition. Butyrophilin-like 2 (BTNL2) is a member of the immunoglobulin superfamily that plays an important role in regulating T cell activation and immune homeostasis. Here, we aimed to investigate the association of the genetic variants of BTNL2 with childhood asthma and asthma-related traits by utilizing extreme asthma phenotypes and employing a genome-wide association study. Our study included 243 children with well-defined moderate to severe atopic asthma and 134 healthy children with no history of allergic diseases and allergic sensitization. DNA from these subjects was genotyped using AxiomTM Genome-Wide Array Plates. Although no single nucleotide polymorphisms (SNPs) reached a genome-wide threshold of significance, 3 SNPs, rs3817971, rs41355746, and rs41441651, at BTNL2 were significantly associated with moderate to severe atopic asthma after performing Bonferroni correction. These SNPs were also associated with the risk of allergic sensitization toward house dust mites and the presence and degree of bronchial hyperresponsiveness. Thus, we identified that BTNL2 was associated with atopic moderate to severe persistent asthma in Korean children, and this may play an important role in disease development and susceptibility.
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Affiliation(s)
- Soo Yeon Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Gyul Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mina Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Yeon Hong
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
- Division of Cardiovascular Disease Research, Department for Chronic Disease Convergence Research, Korea National Institute of Health, Cheongju, Republic of Korea
| | - Ga Eun Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Keimyung University School of Medicine, Keimyung University Dongsan Hospital, Daegu, Republic of Korea
| | - Jae Hwa Jung
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mireu Park
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Jung Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoon Hee Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Myung Hyun Sohn
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyung Won Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
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25
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Olivieri M, Malerba M, Spiteri G, Torroni L, Biscardo CA, Valenza D, Malinovschi A. Fractional exhaled nitric oxide levels in relation to work-related respiratory burden and sensitization to wheat flour and multigrain in bakers. Clin Transl Allergy 2021; 11:e12018. [PMID: 34708942 PMCID: PMC8694179 DOI: 10.1002/clt2.12018] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/25/2021] [Accepted: 03/17/2021] [Indexed: 01/26/2023] Open
Abstract
Background Work‐related lower airway symptoms (WR‐LAS), rhinitis (WRR), and asthma (WRA) are very common among bakers, due to airborne exposure to wheat flour and multigrain. Limited data is available regarding fractional exhaled nitric oxide (FeNO) in bakers in relation to respiratory burden and occupational sensitization in a real‐life situation. Objective To analyze FeNO levels in relation to WRR, WR‐LAS, and WRA with regard to allergic sensitization to occupational allergen in bakers. Methods Cross‐sectional, observational study of 174 bakers employed in traditional small bakeries in the Verona District. Subjects did FeNO measurements, spirometry, methacholine challenge, and skin prick test to common inhalant aeroallergens and bakeries occupational allergens. Results FeNO levels were higher in subjects sensitized to occupational allergens compared with bakers not sensitized to occupational allergens (22.8 ppb (18.9, 27.6) vs. 12.0 ppb (9.9, 14.5), p < 0.05). FeNO levels were higher in bakers with WRR and occupational sensitization (25.4 (20.6, 31.3)) than in bakers with WRR without occupational sensitization compared and bakers without respiratory burden (13.4 (9.6, 18.6) and 11.9 (9.8, 14.5), both p < 0.001). Similar findings were found for WR‐LAS with regard to the same categories (31.2 (24.1, 40.4) vs 13.3 (11.4, 15.6) and 15.3 (8.5, 27.5), p < 0.001 and p = 0.005). Bakers with WRA, with or without occupational allergic sensitization, had higher levels of FeNO than bakers without respiratory burden (both p ≤ 0.001). These findings were consistent after adjustments for gender, age, height, weight, smoking, and sensitization to common inhalant aeroallergens and lung function. Conclusions WRR and lower airway symptoms in bakers sensitized to occupational allergens relate to increased FeNO. Our study suggests that FeNO is associated with work‐related allergic inflammation in occupational sensitized bakers, but future studies are needed to assess how FeNO should be integrated in the diagnostic work‐up of occupational disease in bakers.
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Affiliation(s)
- Mario Olivieri
- Unit of Occupational Medicine, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Mario Malerba
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Gianluca Spiteri
- Unit of Occupational Medicine, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Lorena Torroni
- Unit of Epidemiology and Medical Statistics, Department of Diagnostic and Public Health, University of Verona, Verona, Italy
| | - Carlo Alberto Biscardo
- Unit of Occupational Medicine, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Dario Valenza
- Unit of Occupational Medicine, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Andrei Malinovschi
- Department of Medical Sciences Clinical Physiology, Uppsala University, Uppsala, Sweden
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Preisser AM, Koschel D, Merget R, Nowak D, Raulf M, Heidrich J. Workplace-related inhalation test - Specific inhalation challenge: S2k Guideline of the German Society for Occupational and Environmental Medicine e.V. (DGAUM), the German Society for Pneumology and Respiratory Medicine e.V. (DGP) and the German Society for Allergology and Clinical Immunology e.V. (DGAKI). Allergol Select 2021; 5:315-334. [PMID: 34646977 PMCID: PMC8507414 DOI: 10.5414/alx02280e] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/01/2021] [Indexed: 11/25/2022] Open
Abstract
Not available.
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Affiliation(s)
- Alexandra M. Preisser
- Institute for Occupational and Maritime Medicine, University Medical Center Hamburg-Eppendorf, Hamburg
- Mandated representative of the German Society for Occupational and Environmental Medicine e. V. (DGAUM)
- Coordinator of the guideline
| | - Dirk Koschel
- Department of Internal Medicine and Pneumology, Fachkrankenhaus Coswig, Lung Center, Coswig, Division of Pneumology, Medical Department I, University Hospital Carl Gustav Carus, Dresden
- Mandated representative of the German Society for Allergology and Clinical Immunology (DGAKI)
| | - Rolf Merget
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, and
- Mandated representative of the German Society for Occupational and Environmental Medicine e. V. (DGAUM)
| | - Dennis Nowak
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, CPC Comprehensive Pneumology Center Munich, DZL, Deutsches Zentrum für Lungenforschung Munich, Germany
- Mandated representative of the German Society for Pneumology and Respiratory Medicine e. V. (DGP) , and
| | - Monika Raulf
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, and
- Mandated representative of the German Society for Allergology and Clinical Immunology (DGAKI)
| | - Jan Heidrich
- Institute for Occupational and Maritime Medicine, University Medical Center Hamburg-Eppendorf, Hamburg
- Coordinator of the guideline
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Sakurai-Yageta M, Mashimo Y, Kuroishi T, Ishihara R, Shimojo N, Kohno Y, Okamoto Y, Hata A, Suzuki Y. Association between Serum Biotin Levels and Cedar Pollinosis in Japanese Schoolchildren. J Nutr Sci Vitaminol (Tokyo) 2021; 67:211-216. [PMID: 34470995 DOI: 10.3177/jnsv.67.211] [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] [Indexed: 11/27/2022]
Abstract
Biotin is a water-soluble B complex vitamin and coenzyme of five types of carboxylase and plays crucial roles in fatty acid, glucose, and amino acid metabolism. Nutritional biotin deficiency and defective enzymes essential for biotin metabolism cause inflammatory diseases such as eczema-like dermatitis and Crohn's disease; however, little is known about the pathophysiological roles of biotin. This study investigated the relationship between biotin metabolism and human allergic sensitization and diseases by measuring serum levels of biotin, total immunoglobulin E (IgE) and allergen-specific IgEs in more than 400 Japanese schoolchildren aged 6 to 12. The prevalence of allergic diseases, and environmental and life-style factors were also examined by a questionnaire. Like total IgE, serum biotin levels of children showed a log-normal distribution. Meanwhile, Spearman's rank correlation analysis showed weak but significant positive associations between serum biotin levels and total IgE (rho=0.147, p=0.0029) as well as allergen-specific IgEs against egg whites (rho=0.215, p=0.00013), cedar pollen (rho=0.176, p=0.00036), and cat dander (rho=0.130, p=0.0085). Furthermore, mean serum biotin levels in children with cedar pollinosis, but not with other allergic diseases such as asthma and allergic rhinitis, were significantly higher than in those without (p=0.0015). These results suggest a correlation between serum biotin levels and the development of cedar pollinosis. Further prospective studies are needed to evaluate the causal relationship between biotin metabolism and cedar pollen sensitization and pollinosis development.
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Affiliation(s)
- Mika Sakurai-Yageta
- Department of Education and Training, Tohoku Medical Megabank Organization, Tohoku University
| | - Yoichi Mashimo
- Department of Public Health, Graduate School of Medicine, Chiba University
| | - Toshinobu Kuroishi
- Division of Oral Immunology, Tohoku University Graduate School of Dentistry, Tohoku University
| | - Rino Ishihara
- Department of Education and Training, Tohoku Medical Megabank Organization, Tohoku University
| | - Naoki Shimojo
- Department of Pediatrics, Graduate School of Medicine, Chiba University.,Center for Preventive Medical Sciences, Chiba University
| | - Yoichi Kohno
- Department of Pediatrics, Graduate School of Medicine, Chiba University.,Chiba Rosai Hospital
| | - Yoshitaka Okamoto
- Chiba Rosai Hospital.,Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine, Chiba University
| | - Akira Hata
- Department of Public Health, Graduate School of Medicine, Chiba University
| | - Yoichi Suzuki
- Department of Education and Training, Tohoku Medical Megabank Organization, Tohoku University.,Department of Public Health, Graduate School of Medicine, Chiba University
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28
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Cooper PJ, Ster IC, Chico ME, Vaca M, Barreto ML, Strachan DP. Patterns of allergic sensitization and factors associated with emergence of sensitization in the rural tropics early in the life course: findings of an Ecuadorian birth cohort. Front Allergy 2021; 2:687073. [PMID: 34888545 PMCID: PMC7612078 DOI: 10.3389/falgy.2021.687073] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Introduction There are limited data on emergence of allergic sensitization (or atopy) during childhood in tropical regions. Methods We followed a birth cohort of 2404 newborns to 8 years in tropical Ecuador and collected: risk factor data by maternal questionnaires periodically from birth; atopy was measured by skin prick test reactivity (SPT) to aeroallergens in parents, and aeroallergens and food allergens in children at 2, 3, 5, and 8 years; and stool samples for soil-transmitted helminths (STH) from children periodically to 8 years and from parents and household members at the time of recruitment of cohort children. Data on risk factors were measured either at birth or repeatedly (time-varying) from birth to 8 years. Longitudinal repeated-measures analyses were done using generalized estimating equations to estimate an the age-dependent risk of positive SPT (SPT+) to any allergen or mite during early childhood to school age. Results SPT+ to any allergen was present in 29.0% of fathers and 24.8% of mothers, and in cohort children increased with age, initially to mite but later to cockroach, reaching 14.8% to any allergen (10.7% mite and 5.3% cockroach) at 8 years. Maternal SPT+, particularly presence of polysensitization (OR 2.04, 95% CI 1.49-2.77) significantly increased the risk of SPT+ during childhood, while household overcrowding at birth decreased the risk (OR 0.84, 95% CI 0.72-0.98). For mite sensitization, maternal polysensitization increased (OR 2.14, 95% CI 1.40-3.27) but rural residence (OR 0.69, 95% CI 0.50-0.94) and birth order (3rd -4th vs. 1st - 2nd: OR 0.71, 95% CI 0.52-0.98) decreased the risk. Time-varying exposures to agricultural activities (OR 0.77, 95% CI 0.60-0.98) and STH parasites (OR 0.70, 95% CI 0.64-0.91) during childhood decreased while anthelmintics increased the childhood risk (OR 1.47, 95% CI 1.05-2.05) of mite sensitization. Conclusion Our data showed the emergence of allergic sensitization, primarily to mite and cockroach allergens, during childhood in tropical Ecuador. A role for both antenatal and postnatal factors acting as potential determinants of SPT+ emergence was observed.
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Affiliation(s)
- Philip J Cooper
- Institute of Infection and Immunity, St George's University of London, London, UK.,Escuela de Medicina, Universidad Internacional del Ecuador, Quito, Ecuador.,Fundacion Ecuatoriana Para Investigacion en Salud, Quito, Ecuador
| | - Irina Chis Ster
- Institute of Infection and Immunity, St George's University of London, London, UK
| | - Martha E Chico
- Fundacion Ecuatoriana Para Investigacion en Salud, Quito, Ecuador
| | - Maritza Vaca
- Fundacion Ecuatoriana Para Investigacion en Salud, Quito, Ecuador
| | - Mauricio L Barreto
- Center for Data and Knowledge Integration for Health (CIDACS)-FIOCRUZ, Salvador, Brazil
| | - David P Strachan
- Population Health Research Institute, St George's University of London, London, UK
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Alberca RW, Gomes E, Russo M. CpG-ODN Signaling via Dendritic Cells-Expressing MyD88, but Not IL-10, Inhibits Allergic Sensitization. Vaccines (Basel) 2021; 9:743. [PMID: 34358159 DOI: 10.3390/vaccines9070743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 11/17/2022] Open
Abstract
Allergen-specific T helper (Th)2 cells orchestrate upon allergen challenge the development of allergic eosinophilic lung inflammation. Sensitization with alum adjuvant, a type 2 adjuvant, has been used extensively in animal models of allergic lung disease. In contrast, type 1 adjuvants like CpG-ODN, a synthetic toll-like receptor 9 agonist, inhibit the development of Th2 immunity. CpG-ODN induce type 1 and suppressive cytokines that influence Th2 cell differentiation. Here, we investigated the immune modulatory effect of CpG-ODN on allergic sensitization to OVA with alum focusing on dendritic cells (DCs) expressing the MyD88 molecule and the suppressive IL-10 cytokine. Using mice with specific cell deletion of MyD88 molecule, we showed that CpG-ODN suppressed allergic sensitization and consequent lung allergic inflammation signaling through the MyD88 pathway on dendritic cells, but not on B-cells. This inhibition was associated with an increased production of IL-10 in the bronchoalveolar lavage fluid. Sensitization to OVA with CpG-ODN of IL-10-deficient, but not wild-type mice, induced a shift towards Th1 pattern of inflammation. Employing bone marrow-derived dendritic cells (BM-DCs) pulsed with OVA for sensitizations with or without CpG-ODN, we showed that IL-10 is dispensable for the inhibition of allergic lung Th2 responses by CpG-ODN. Moreover, the lack of IL-10 on DCs was not sufficient for the CpG-ODN-induced immune-deviation towards a Th1 pattern. Accordingly, we confirmed directly the role of MyD88 pathway on DCs in the inhibition of allergic sensitization.
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Pyrhönen K, Kulmala P. Atopic diseases of the parents predict the offspring's atopic sensitization and food allergy. Pediatr Allergy Immunol 2021; 32:859-871. [PMID: 33527507 DOI: 10.1111/pai.13462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND In genetic studies and selected study populations, parental atopy has been associated with atopic diseases in offspring. Our aim was to identify the association between parental atopic diseases and the offspring's atopic sensitization and food allergies, and their effect modifications due to the offspring's sex. METHODS The study population (N = 5564) (born between 2001 and 2006) was identified from the population register and live in the province of South Karelia, Finland. Questionnaire-based information on parental atopic diseases was available for 3592 children. The results of skin prick tests, specific IgE tests, and open food challenges (OFC) were collected from patient records. RESULTS By 12 years of age, the cumulative incidence of sensitization to food (14% vs 7%, hazard ratio 2.13; 95% CI 1.68-2.69), animal (10% vs 6%, 1.86; 1.42-2.44), and pollen allergens (12% vs 6%, 2.43; 1.85-3.19), as well as food allergies (positive OFC, 5% vs 2%, 2.28; 1.57-3.33), was higher in the offspring of parents with atopic diseases. The cumulative incidence for pollen sensitization was twofold higher for the female offspring of parents with atopic diseases than those of parents without, while it was almost threefold higher among males. The association between parental pollen allergy and the offspring's pollen sensitization was modified by sex according to additive scale estimates (RERI 1.03; 95% CI 0.13-1.91). CONCLUSION Until adolescence, parental atopic diseases have a relatively strong association with the offspring's, particularly male offspring's, atopic sensitization, and food allergies. A pronounced association was found between parental pollen allergy and the male offspring's pollen sensitization.
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Affiliation(s)
- Kaisa Pyrhönen
- Center for Life Course Health Research, University of Oulu, Oulu, Finland.,PEDEGO Research Unit and MRC Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Petri Kulmala
- PEDEGO Research Unit and MRC Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland.,Biomedicine Research Unit, Medical Microbiology and Immunology, University of Oulu, Oulu, Finland
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31
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Holmdahl I, Filiou A, Stenberg Hammar K, Asarnoj A, Borres MP, van Hage M, Hedlin G, Söderhäll C, Konradsen JR. Early Life Wheeze and Risk Factors for Asthma-A Revisit at Age 7 in the GEWAC-Cohort. Children (Basel) 2021; 8:children8060488. [PMID: 34201058 PMCID: PMC8229161 DOI: 10.3390/children8060488] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 11/17/2022]
Abstract
One third of all toddlers are in need of medical care because of acute wheeze and many of these children have persistent asthma at school age. Our aims were to assess risk factors for and the prevalence of asthma at age 7 in a cohort of children suffering from an acute wheezing episode as toddlers. A total of 113 children, included during an acute wheezing episode (cases), and 54 healthy controls were followed prospectively from early pre-school age to 7 years. The protocol included questionnaires, ACT, FeNO, nasopharyngeal virus samples, blood sampling for cell count, vitamin D levels, and IgE to food and airborne allergens. The prevalence of asthma at age 7 was 70.8% among cases and 1.9% among controls (p < 0.001). Acute wheeze caused by rhinovirus (RV) infection at inclusion was more common among cases with asthma at age 7 compared to cases without asthma (p = 0.011) and this association remained significant following adjustment for infection with other viruses (OR 3.8, 95% CI 1.4–10.5). Cases with asthma at age 7 had been admitted to hospital more often (p = 0.024) and spent more days admitted (p = 0.01) during the year following inclusion compared to cases without asthma. RV infection stands out as the main associated factor for wheeze evolving to persistent asthma. Cases who developed asthma also had an increased need of hospital time and care for wheeze during the year after inclusion.
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Affiliation(s)
- Idun Holmdahl
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
- Correspondence:
| | - Anastasia Filiou
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Katarina Stenberg Hammar
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Anna Asarnoj
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Magnus P. Borres
- Department of Women’s and Children’s Health, Uppsala University, 752 36 Uppsala, Sweden;
| | - Marianne van Hage
- Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet and Karolinska University Hospital, 171 76 Stockholm, Sweden;
| | - Gunilla Hedlin
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Cilla Söderhäll
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Jon R. Konradsen
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
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Canziani KE, Pucci Molineris M, Guzman L, Bernedo V, García M, Altamirano EM, Muglia CI, Docena GH. Direct evidence for local IgE production in the human colonic mucosa. Allergy 2021; 76:1545-1549. [PMID: 32960459 DOI: 10.1111/all.14594] [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: 04/02/2020] [Revised: 08/07/2020] [Accepted: 08/26/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Karina Eva Canziani
- Instituto de Estudios Inmunológicos y Fisiopatológicos‐IIFP Facultad de Ciencias Exactas Universidad Nacional de La PlataConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET) La Plata Argentina
| | - Melisa Pucci Molineris
- Departamento de Ciencias Biológicas Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP)UNLP, CONICET, asociado a CIC PBA, Facultad de Ciencias Exactas La Plata Argentina
| | - Luciana Guzman
- Servicio de Gastroenterología Hospital de Niños Sor María Ludovica La Plata Argentina
| | - Viviana Bernedo
- Servicio de Gastroenterología Hospital de Niños Sor María Ludovica La Plata Argentina
| | - Marcela García
- Servicio de Alergia Hospital de Niños Sor María Ludovica La Plata Argentina
| | | | - Cecilia Isabel Muglia
- Instituto de Estudios Inmunológicos y Fisiopatológicos‐IIFP Facultad de Ciencias Exactas Universidad Nacional de La PlataConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET) La Plata Argentina
| | - Guillermo Horacio Docena
- Instituto de Estudios Inmunológicos y Fisiopatológicos‐IIFP Facultad de Ciencias Exactas Universidad Nacional de La PlataConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET) La Plata Argentina
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Petersen C, Dai DLY, Boutin RCT, Sbihi H, Sears MR, Moraes TJ, Becker AB, Azad MB, Mandhane PJ, Subbarao P, Turvey SE, Finlay BB. A rich meconium metabolome in human infants is associated with early-life gut microbiota composition and reduced allergic sensitization. Cell Rep Med 2021; 2:100260. [PMID: 34095873 DOI: 10.1016/j.xcrm.2021.100260] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 01/20/2021] [Accepted: 04/02/2021] [Indexed: 12/24/2022]
Abstract
Microbiota maturation and immune development occur in parallel with, and are implicated in, allergic diseases, and research has begun to demonstrate the importance of prenatal influencers on both. Here, we investigate the meconium metabolome, a critical link between prenatal exposures and both early microbiota and immune development, to identify components of the neonatal gut niche that contribute to allergic sensitization. Our analysis reveals that newborns who develop immunoglobulin E (IgE)-mediated allergic sensitization (atopy) by 1 year of age have a less-diverse gut metabolome at birth, and specific metabolic clusters are associated with both protection against atopy and the abundance of key taxa driving microbiota maturation. These metabolic signatures, when coupled with early-life microbiota and clinical factors, increase our ability to accurately predict whether or not infants will develop atopy. Thus, the trajectory of both microbiota colonization and immune development are significantly affected by metabolites present in the neonatal gut at birth. Metabolic diversity is reduced in newborns that develop allergic sensitization Gut microbiota maturation is reduced within infants that develop allergic sensitization Meconium metabolites are associated with important taxa for microbiota maturation
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Costache A, Berghi ON, Cergan R, Dumitru M, Neagos A, Popa LG, Giurcaneanu C, Vrinceanu D. Respiratory allergies: Salicaceae sensitization (Review). Exp Ther Med 2021; 21:609. [PMID: 33936266 DOI: 10.3892/etm.2021.10041] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 01/29/2021] [Accepted: 03/01/2021] [Indexed: 12/28/2022] Open
Abstract
Seasonal allergic rhinitis (SAR) is one of the most frequent chronic conditions of the modern world. Pollen carried by the wind from pollinated trees is a major source of SAR. Betulaceae, Oleaceae and Platanus are the most important sources of airway sensitization with regard to tree pollen and, therefore, they are included in the official recommendations of skin prick testing by different official societies. Salicaceae pollen is a moderate source of pollen sensitization. Conversely, large areas are covered with poplars and willows around the world. A number of studies from many countries showed that in some particular situations (large and compacted areas covered by Salicaceae, weather conditions, air pollution, urban ornamental vegetation), poplar and willow pollens may become of local importance in producing SAR. The aim of this review was to present a synthesis of information regarding Salicaceae pollen allergy showing that, if various unfavorable aspects are brought together, a minor problem (Salicaceae sensitization) can became a public health problem.
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Affiliation(s)
- Adrian Costache
- Department of Pathology, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Ovidiu Nicolae Berghi
- Department of Oncologic Dermatology, 'Elias' Emergency University Hospital, 011461 Bucharest, Romania
| | - Romica Cergan
- Department of Anatomy, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Mihai Dumitru
- Department of Anatomy, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Adriana Neagos
- ENT Department, 'George Emil Palade' University of Medicine, Pharmacy, Science and Technology of Târgu-Mureș, 540139 Târgu Mureș, Romania
| | - Liliana Gabriela Popa
- Department of Oncologic Dermatology, 'Elias' Emergency University Hospital, 011461 Bucharest, Romania
| | - Calin Giurcaneanu
- Department of Oncologic Dermatology, 'Elias' Emergency University Hospital, 011461 Bucharest, Romania
| | - Daniela Vrinceanu
- ENT Department, Bucharest Emergency University Hospital, 010271 Bucharest, Romania
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Ramratnam SK, Lockhart A, Visness CM, Calatroni A, Jackson DJ, Gergen PJ, Bacharier LB, O'Connor GT, Sandel MT, Kattan M, Wood RA, Gern JE. Maternal stress and depression are associated with respiratory phenotypes in urban children. J Allergy Clin Immunol 2021; 148:120-127. [PMID: 33713764 DOI: 10.1016/j.jaci.2021.03.005] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 02/03/2021] [Accepted: 03/03/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Prenatal and early-life exposure to maternal stress and depression is linked to development of recurrent wheezing in young children. OBJECTIVE We sought to determine whether maternal stress and depression in early life are associated with nonatopic wheezing phenotype in urban children. METHODS The Urban Environment and Childhood Asthma Study examined a birth cohort of children at high risk for asthma in low-income neighborhoods. Prenatal and postnatal (through age 3 years) maternal stress and depression scores were compared with respiratory phenotypes through age 10 years (multinomial regression), self-reported colds (linear regression), and detection of respiratory viruses (Poisson regression). RESULTS Scores for maternal depression, and, to a lesser extent, maternal perceived stress, were positively related to multiple wheezing phenotypes. In particular, cumulative measures of maternal depression in the first 3 years were related to the moderate-wheeze-low-atopy phenotype (odds ratio, 1.13; [1.05, 1.21]; P < .01). Considering indicators of respiratory health that were used to identify the phenotypes, there were multiple positive associations between early-life scores for maternal stress and depression and increased wheezing illnesses, but no consistent relationships with lung function and some inverse relationships with allergic sensitization. Cumulative maternal stress and depression scores were associated with cumulative number of respiratory illnesses through age 3 years. CONCLUSIONS Among high-risk, urban children, maternal stress and depression in early life were positively associated with respiratory illnesses and a moderate-wheeze-low-atopy phenotype. These results suggest that treating stress and depression in expectant and new mothers could reduce viral respiratory illnesses and recurrent wheeze during the preschool years and some forms of childhood asthma.
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Affiliation(s)
- Sima K Ramratnam
- Department of Pediatrics, University of Wisconsin - Madison, Madison, Wis.
| | | | | | | | - Daniel J Jackson
- Department of Pediatrics, University of Wisconsin - Madison, Madison, Wis
| | - Peter J Gergen
- National Institute of Allergy and Infectious Diseases, Rockville, Md
| | - Leonard B Bacharier
- Department of Pediatrics, Washington University School of Medicine and St Louis Children's Hospital, St Louis, Mo
| | - George T O'Connor
- Department of Medicine, Boston University School of Medicine, Boston, Mass
| | - Megan T Sandel
- Department of Medicine, Boston University School of Medicine, Boston, Mass
| | - Meyer Kattan
- Department of Pediatrics, Columbia University Irving Medical Center, New York, NY
| | - Robert A Wood
- Department of Pediatrics, Johns Hopkins University Medical Center, Baltimore, Md
| | - James E Gern
- Department of Pediatrics, University of Wisconsin - Madison, Madison, Wis
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Katsnelson BA, Chernyshov IN, Solovyeva SN, Minigalieva IA, Gurvich VB, Valamina IE, Makeyev OH, Sahautdinova RR, Privalova LI, Tsaregorodtseva AE, Korotkov AV, Shuman EA, Panov VG, Sutunkova MP. Looking for the LOAEL or NOAEL Concentration of Nickel-Oxide Nanoparticles in a Long-Term Inhalation Exposure of Rats. Int J Mol Sci 2021; 22:ijms22010416. [PMID: 33401533 PMCID: PMC7796390 DOI: 10.3390/ijms22010416] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/23/2020] [Accepted: 12/29/2020] [Indexed: 12/01/2022] Open
Abstract
Rats were exposed to nickel oxide nano-aerosol at a concentration of 2.4 ± 0.4 µg/m3 in a “nose only” inhalation setup for 4 h at a time, 5 times a week, during an overall period of 2 weeks to 6 months. Based on the majority of the effects assessed, this kind of exposure may be considered as close to LOAEL (lowest observed adverse effect level), or even to NOAEL (no observed adverse effect level). At the same time, the experiment revealed genotoxic and allergic effects as early as in the first weeks of exposure, suggesting that these effects may have no threshold at all.
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Affiliation(s)
- Boris A. Katsnelson
- The Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., 620014 Yekaterinburg, Russia; (I.N.C.); (S.N.S.); (I.A.M.); (V.B.G.); (R.R.S.); (L.I.P.); (V.G.P.); (M.P.S.)
- Correspondence: ; Tel.: +7-343-253-04-21; Fax: +7-343-3717-740
| | - Ivan N. Chernyshov
- The Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., 620014 Yekaterinburg, Russia; (I.N.C.); (S.N.S.); (I.A.M.); (V.B.G.); (R.R.S.); (L.I.P.); (V.G.P.); (M.P.S.)
| | - Svetlana N. Solovyeva
- The Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., 620014 Yekaterinburg, Russia; (I.N.C.); (S.N.S.); (I.A.M.); (V.B.G.); (R.R.S.); (L.I.P.); (V.G.P.); (M.P.S.)
| | - Ilzira A. Minigalieva
- The Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., 620014 Yekaterinburg, Russia; (I.N.C.); (S.N.S.); (I.A.M.); (V.B.G.); (R.R.S.); (L.I.P.); (V.G.P.); (M.P.S.)
| | - Vladimir B. Gurvich
- The Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., 620014 Yekaterinburg, Russia; (I.N.C.); (S.N.S.); (I.A.M.); (V.B.G.); (R.R.S.); (L.I.P.); (V.G.P.); (M.P.S.)
| | - Irene E. Valamina
- Central Research Laboratory, The Ural State Medical University, 17 Klyuchevskaya Str., 620109 Yekaterinburg, Russia; (I.E.V.); (O.H.M.); (A.E.T.); (A.V.K.); (E.A.S.)
| | - Oleg H. Makeyev
- Central Research Laboratory, The Ural State Medical University, 17 Klyuchevskaya Str., 620109 Yekaterinburg, Russia; (I.E.V.); (O.H.M.); (A.E.T.); (A.V.K.); (E.A.S.)
| | - Renata R. Sahautdinova
- The Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., 620014 Yekaterinburg, Russia; (I.N.C.); (S.N.S.); (I.A.M.); (V.B.G.); (R.R.S.); (L.I.P.); (V.G.P.); (M.P.S.)
| | - Larisa I. Privalova
- The Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., 620014 Yekaterinburg, Russia; (I.N.C.); (S.N.S.); (I.A.M.); (V.B.G.); (R.R.S.); (L.I.P.); (V.G.P.); (M.P.S.)
| | - Anastasia E. Tsaregorodtseva
- Central Research Laboratory, The Ural State Medical University, 17 Klyuchevskaya Str., 620109 Yekaterinburg, Russia; (I.E.V.); (O.H.M.); (A.E.T.); (A.V.K.); (E.A.S.)
| | - Artem V. Korotkov
- Central Research Laboratory, The Ural State Medical University, 17 Klyuchevskaya Str., 620109 Yekaterinburg, Russia; (I.E.V.); (O.H.M.); (A.E.T.); (A.V.K.); (E.A.S.)
| | - Eugene A. Shuman
- Central Research Laboratory, The Ural State Medical University, 17 Klyuchevskaya Str., 620109 Yekaterinburg, Russia; (I.E.V.); (O.H.M.); (A.E.T.); (A.V.K.); (E.A.S.)
| | - Vladimir G. Panov
- The Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., 620014 Yekaterinburg, Russia; (I.N.C.); (S.N.S.); (I.A.M.); (V.B.G.); (R.R.S.); (L.I.P.); (V.G.P.); (M.P.S.)
- Institute of Industrial Ecology, The Urals Branch of the Russian Academy of Sciences, 620990 Ekaterinburg, Russia
| | - Marina P. Sutunkova
- The Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., 620014 Yekaterinburg, Russia; (I.N.C.); (S.N.S.); (I.A.M.); (V.B.G.); (R.R.S.); (L.I.P.); (V.G.P.); (M.P.S.)
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Jorde I, Hildebrand CB, Kershaw O, Lücke E, Stegemann-Koniszewski S, Schreiber J. Modulation of Allergic Sensitization and Allergic Inflammation by Staphylococcus aureus Enterotoxin B in an Ovalbumin Mouse Model. Front Immunol 2020; 11:592186. [PMID: 33193436 PMCID: PMC7649385 DOI: 10.3389/fimmu.2020.592186] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 08/06/2020] [Accepted: 10/05/2020] [Indexed: 01/02/2023] Open
Abstract
The superantigen Staphylococcus aureus (S. aureus) enterotoxin B (SEB) has been proposed a central player in the associations between S. aureus nasal colonization and the development of allergic asthma. Previously, SEB has been shown to aggravate allergic sensitization and allergic airway inflammation (AAI) in experimental mouse models. Aiming at understanding the underlying immunological mechanisms, we tested the hypothesis that intranasal (i.n.) SEB-treatment divergently modulates AAI depending on the timing and intensity of the SEB-encounter. In an ovalbumin-mediated mouse model of AAI, we treated mice i.n. with 50 ng or 500 ng SEB either together with the allergic challenge or prior to the peripheral sensitization. We observed SEB to affect different hallmark parameters of AAI depending on the timing and the dose of treatment. SEB administered i.n. together with the allergic challenge significantly modulated respiratory leukocyte accumulation, intensified lymphocyte activation and, at the higher dose, induced a strong type-1 and pro-inflammatory cytokine response and alleviated airway hyperreactivity in AAI. SEB administered i.n. prior to the allergic sensitization at the lower dose significantly boosted the specific IgE response while administration of the higher dose led to a significantly reduced recruitment of immune cells, including eosinophils, to the respiratory tract and to a significantly dampened Th-2 cytokine response without inducing a Th-1 or pro-inflammatory response. We show a remarkably versatile potential for SEB to either aggravate or alleviate different parameters of allergic sensitization and AAI. Our study thereby not only highlights the complexity of the associations between S. aureus and allergic asthma but possibly even points at prophylactic and therapeutic pathways.
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Affiliation(s)
- Ilka Jorde
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg/Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GC-I³), Otto-von-Guericke-University, Magdeburg, Germany
| | - Christina B Hildebrand
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg/Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GC-I³), Otto-von-Guericke-University, Magdeburg, Germany
| | - Olivia Kershaw
- Department of Veterinary Medicine, Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Eva Lücke
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg/Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GC-I³), Otto-von-Guericke-University, Magdeburg, Germany
| | - Sabine Stegemann-Koniszewski
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg/Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GC-I³), Otto-von-Guericke-University, Magdeburg, Germany
| | - Jens Schreiber
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg/Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GC-I³), Otto-von-Guericke-University, Magdeburg, Germany
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Feng Q, Bønnelykke K, Ek WE, Chawes BL, Yuan S, Cheung CL, Li GH, Leung RY, Cheung BM. Null association between serum 25-hydroxyvitamin D levels with allergic rhinitis, allergic sensitization and non-allergic rhinitis: A Mendelian randomization study. Clin Exp Allergy 2020; 51:78-86. [PMID: 32949071 DOI: 10.1111/cea.13739] [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: 05/14/2020] [Revised: 08/03/2020] [Accepted: 09/02/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Previous observational studies have not found a conclusive association between serum 25-hydroxyvitamin D (25(OH)D) levels and allergic rhinitis (AR) or allergic sensitization (AS). OBJECTIVE To investigate a causal association between 25(OH)D levels with risk of AR and AS, using a two-sample Mendelian randomization (MR) approach. METHODS Seven single nucleotide polymorphisms (SNPs), previously shown to be associated with serum 25(OH)D levels, were identified as instrumental variables. The primary outcome was AR, and the secondary outcomes were AS and non-allergic rhinitis (NAR). The genome-wide association (GWA) summary statistics of the outcomes were obtained from two cohort studies (EAGLE Consortium and UK Biobank). An MR analysis with random-effects inverse-variance weighted method was performed as the primary analysis to estimate overall effect size (odds ratio [OR] and 95% confidence interval [CI]). Sensitivity analysis using weighted median method and MR-Egger regression method was conducted. A subgroup analysis based on 25(OH)D synthesis-related SNPs was further applied. RESULTS Serum 25(OH)D levels were not causally associated with risk of AR (OR: 0.960; 95% CI: 0.779-1.184), AS (OR: 1.059; 95% CI: 0.686 to 1.634) or NAR (OR: 0.937; 95% CI: 0.588-1.491). Subgroup analysis also showed null association between 25(OH)D synthesis-related SNPs and the outcomes. Sensitivity analyses yielded similar results. CONCLUSIONS AND CLINICAL RELEVANCE This MR study found no evidence supporting a causal association between serum 25(OH)D levels and risk of AR, AS and NAR in European-ancestry population. This argues against the previous postulation that vitamin D supplementation is effective in prevention of allergic diseases.
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Affiliation(s)
- Qi Feng
- Division of Clinical Pharmacology and Therapeutics, Department of Medicine, LKS Faculty of Medicine, Queen Mary Hospital, the University of Hong Kong, Pokfulam, Hong Kong, China
| | - Klaus Bønnelykke
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Weronica E Ek
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Bo L Chawes
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Shuai Yuan
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Ching Lung Cheung
- Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, Queen Mary Hospital, the University of Hong Kong, Pokfulam, Hong Kong, China.,Centre for Genomic Sciences, LKS Faculty of Medicine, the University of Hong Kong, Pokfulam, Hong Kong
| | - Gloria Hy Li
- Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, Queen Mary Hospital, the University of Hong Kong, Pokfulam, Hong Kong, China
| | - Raymond Yh Leung
- Division of Clinical Pharmacology and Therapeutics, Department of Medicine, LKS Faculty of Medicine, Queen Mary Hospital, the University of Hong Kong, Pokfulam, Hong Kong, China.,Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, Queen Mary Hospital, the University of Hong Kong, Pokfulam, Hong Kong, China
| | - Bernard My Cheung
- Division of Clinical Pharmacology and Therapeutics, Department of Medicine, LKS Faculty of Medicine, Queen Mary Hospital, the University of Hong Kong, Pokfulam, Hong Kong, China.,State Key Laboratory of Pharmaceutical Biotechnology, the University of Hong Kong, Pokfulam, Hong Kong, China.,Institute of Cardiovascular Science and Medicine, the University of Hong Kong, Pokfulam, Hong Kong, China
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39
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Custovic A, Custovic D, Kljaić Bukvić B, Fontanella S, Haider S. Atopic phenotypes and their implication in the atopic march. Expert Rev Clin Immunol 2020; 16:873-881. [PMID: 32856959 DOI: 10.1080/1744666x.2020.1816825] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Eczema, allergic rhinitis, and asthma are traditionally considered atopic (or allergic) diseases. They are complex, multifactorial, and are caused by a variety of different mechanisms, which result in multiple heterogeneous clinical phenotypes. Atopic march is usually interpreted as the sequential development of symptoms from eczema in infancy, to asthma, and then allergic rhinitis. Areas covered: The authors reviewed the evidence on the multimorbidity of eczema, asthma, and rhinitis, and the implication of results of data-driven analyses on the concept framework of atopic march. A literature search was conducted in the PubMed and Web of Science for peer-reviewed articles published until July 2020. Application of Bayesian machine learning framework to rich phenotypic data from birth cohorts demonstrated that the postulated linear progression of symptoms (atopic march) does not capture the heterogeneity of allergic phenotypes. Expert opinion: Eczema, wheeze, and rhinitis co-exist more often than would be expected by chance, but their relationship can be best understood in a multimorbidity framework, rather than through atopic march sequence. The observation of their co-occurrence does not imply any specific relationship between them, and certainly not a progressive or causal one. It is unlikely that a sngle mechanism such as allergic sensitization underpins different multimorbidity manifestations.
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Affiliation(s)
- Adnan Custovic
- National Heart and Lung Institute, Imperial College London , London, UK
| | - Darije Custovic
- Department of Brain Sciences, Imperial College London , London, UK
| | - Blazenka Kljaić Bukvić
- Department of Pediatrics, General Hospital Dr Josip Benčević , Slavonski Brod, Croatia.,Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek , Osijek, Croatia.,Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek , Osijek, Croatia
| | - Sara Fontanella
- National Heart and Lung Institute, Imperial College London , London, UK
| | - Sadia Haider
- National Heart and Lung Institute, Imperial College London , London, UK
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40
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Roach KA, Anderson SE, Stefaniak AB, Shane HL, Boyce GR, Roberts JR. Evaluation of the skin-sensitizing potential of gold nanoparticles and the impact of established dermal sensitivity on the pulmonary immune response to various forms of gold. Nanotoxicology 2020; 14:1096-1117. [PMID: 32909489 DOI: 10.1080/17435390.2020.1808107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Gold nanoparticles (AuNP) are largely biocompatible; however, many studies have demonstrated their potential to modulate various immune cell functions. The potential allergenicity of AuNP remains unclear despite the recognition of gold as a common contact allergen. In these studies, AuNP (29 nm) dermal sensitization potential was assessed via Local Lymph Node Assay (LLNA). Soluble gold (III) chloride (AuCl3) caused lymph node (LN) expansion (SI 10.9), whereas bulk particles (Au, 942 nm) and AuNP did not. Next, the pulmonary immune effects of AuNP (10, 30, 90 µg) were assessed 1, 4, and 8 days post-aspiration. All markers of lung injury and inflammation remained unaltered, but a dose-responsive increase in LN size was observed. Finally, mice were dermally-sensitized to AuCl3 then aspirated once, twice, or three times with Au or AuNP in doses normalized for mass or surface area (SA) to assess the impact of existing contact sensitivity to gold on lung immune responses. Sensitized animals exhibited enhanced responsivity to the metal, wherein subsequent immune alterations were largely conserved with respect to dose SA. The greatest increase in bronchoalveolar lavage (BAL) lymphocyte number was observed in the high dose group - simultaneous to preferential expansion of BAL/LN CD8+ T-cells. Comparatively, the lower SA-based doses of Au/AuNP caused more modest elevations in BAL lymphocyte influx (predominantly CD4+ phenotype), exposure-dependent increases in serum IgE, and selective expansion/activation of LN CD4+ T-cells and B-cells. Overall, these findings suggest that AuNP are unlikely to cause sensitization; however, established contact sensitivity to gold may increase immune responsivity following pulmonary AuNP exposure.
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Affiliation(s)
- K A Roach
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - S E Anderson
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - A B Stefaniak
- Respiratory Health Division (RHD), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - H L Shane
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - G R Boyce
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - J R Roberts
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
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Liccardi G, Calzetta L, Berra A, Caiazzo R, Califano F, Ciccarelli A, Cutajar M, D'Amato M, De Bartolomeis F, Dello Iacono I, Gargano D, Lo Schiavo M, Madonna F, Maniscalco M, Milanese M, Montera C, Narducci R, Papa G, Pedicini A, Sabatino G, Sacerdoti C, Savoia A, Stanziola A, Bilò MB, Rogliani P. Unmet needs and relationship between general practitioners (GPs) and allergists living in Campania region (southern Italy). Eur Ann Allergy Clin Immunol 2020; 52:230-234. [PMID: 32374559 DOI: 10.23822/eurannaci.1764-1489.127] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- G Liccardi
- Department of Pulmonology, Haematology and Oncology. Division of Pulmonology. Unit of Allergology, High Speciality A.Cardarelli Hospital, Naples, Italy.,Postgraduate School of Respiratory Medicine, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | - L Calzetta
- Postgraduate School of Respiratory Medicine, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy.,Department of Experimental Medicine, Unit of Respiratory Medicine University of Rome, Tor Vergata, Rome, Italy
| | - A Berra
- Respiratory Allergy Unit. G. Da Procida Hospital, Salerno, Italy
| | - R Caiazzo
- Allergy Unit, ASL (Sanitary District n°12), Caserta, Italy
| | - F Califano
- Allergy and Clinical Immunology, G. Fucito, Hospital and University Hospital, Salerno, Italy
| | - A Ciccarelli
- Allergy Unit, Presidio Sanitario Polispecialistico Loreto Crispi Naples, Italy
| | - M Cutajar
- Allergy Center, Division of Internal Medicine. Ospedali Riuniti Penisola Sorrentina, Sorrento, Naples, Italy
| | - M D'Amato
- Department of Respiratory Disease, Federico II University AO Dei Colli, Naples, Italy
| | - F De Bartolomeis
- Allergy Unit. High Speciality San Giuseppe Moscati Hospital, Avellino, Italy
| | - I Dello Iacono
- Unit of Allergology. Division of Internal Medicine, Fatebenefratelli Hospital, Benevento, Italy
| | - D Gargano
- Allergy Unit. High Speciality San Giuseppe Moscati Hospital, Avellino, Italy
| | - M Lo Schiavo
- Allergy and Clinical Immunology, G. Fucito, Hospital and University Hospital, Salerno, Italy
| | - F Madonna
- Allergy Unit. ASL (Sanitary District n°12), Caserta, Italy
| | - M Maniscalco
- Pulmonary Rehabilitation Unit ICS Maugeri Telese Terme, Benevento, Italy
| | - M Milanese
- Division of Pulmonology, S.Corona Hospital, Pietra Ligure, Savona, Italy
| | - C Montera
- Allergy and Clinical Immunology, G. Fucito, Hospital and University Hospital, Salerno, Italy
| | - R Narducci
- Unit of Allergology, San Michele Clinic, Maddaloni, Caserta, Italy
| | - G Papa
- ASL (Sanitary District), Avellino, Italy
| | - A Pedicini
- Unit of Allergology. Division of Internal Medicine, Fatebenefratelli Hospital, Benevento, Italy
| | | | | | - A Savoia
- Unit of Allergology. Division of Internal Medicine, Fatebenefratelli Hospital, Benevento, Italy
| | - A Stanziola
- Department of Respiratory Disease, Federico II University AO Dei Colli, Naples, Italy
| | - M B Bilò
- Allergy Unit, Department of Internal Medicine, University Hospital Ospedali Riuniti, Ancona, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Italy
| | - P Rogliani
- Postgraduate School of Respiratory Medicine, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy.,Department of Experimental Medicine, Unit of Respiratory Medicine University of Rome, Tor Vergata, Rome, Italy
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Nauwelaerts SJD, Roosens NHC, De Cremer K, Bernard A, De Keersmaecker SCJ. Gender-dependent association between exhaled nitric oxide and the CC16 38AA genotype in young school children. Immun Inflamm Dis 2020; 8:497-505. [PMID: 32762031 PMCID: PMC7654394 DOI: 10.1002/iid3.332] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/06/2020] [Accepted: 07/14/2020] [Indexed: 12/12/2022]
Abstract
Background Studies that investigated the association between the CC16 A38G polymorphism and the risk of asthma yielded conflicting results. The aim of this study among schoolchildren was to assess the relationships of CC16 A38G polymorphism with aeroallergen sensitization and fractional exhaled nitric oxide (FeNO), two outcomes predicting asthma later in life. Methods The study included 139 children (72 boys), median age of 7.7. Information on each child's health, lifestyle, and environment was collected through a questionnaire completed by their parents. CC16 genotypes were determined using urinary DNA. We measured FeNO, the CC16 protein in urine and nasal lavage fluid and aeroallergen‐specific immunoglobulin E in nasal mucosa fluid. Results Children with the homozygous mutant CC16 38AA genotype had higher odds of increased FeNO (>30 ppb) compared with their peers with the wild‐type genotype 38GG (OR, 9.85; 95% CI, 2.09‐46.4; P = .004). This association was female gender specific (P = .002) not being observed in boys (P = .40). It was also independent of allergic sensitization, which yet emerged as the strongest predictor of FeNO along with the use of bleach for house cleaning. Children with the CC16 38AA genotype had lower covariates‐adjusted urinary CC16 levels than those with 38GG (median, μg/L, 1.17 vs 2.08, P = .02). Conclusion Our study suggests that the CC16 38AA allele promotes airway inflammation as measured by FeNO through a gender‐dependent association. Deficient levels of CC16 in the deep lung, measured noninvasively in urine, as a possible proxy for serum CC16, might underlie this promoting effect.
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Affiliation(s)
- Sarah J D Nauwelaerts
- Transversal activities in Applied Genomics, Sciensano, Brussels, Belgium.,Louvain Centre for Toxicology and Applied Pharmacology, University catholique de Louvain, Brussels, Belgium
| | - Nancy H C Roosens
- Transversal activities in Applied Genomics, Sciensano, Brussels, Belgium
| | - Koen De Cremer
- Platform Chromatography and Mass Spectrometry, Sciensano, Brussels, Belgium
| | - Alfred Bernard
- Louvain Centre for Toxicology and Applied Pharmacology, University catholique de Louvain, Brussels, Belgium
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Gehring U, Wijga AH, Koppelman GH, Vonk JM, Smit HA, Brunekreef B. House dust endotoxin, asthma and allergic sensitization through childhood into adolescence. Clin Exp Allergy 2020; 50:1055-1064. [PMID: 32640057 PMCID: PMC7540017 DOI: 10.1111/cea.13705] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 01/24/2020] [Revised: 04/28/2020] [Accepted: 07/02/2020] [Indexed: 12/17/2022]
Abstract
Background House dust endotoxin may have beneficial effects on allergic sensitization and asthma in children. Evidence is scarce for adolescents and most studies so far have been cross‐sectional and limited to a single exposure measurement. Objective We assessed associations of house dust endotoxin with asthma and allergic sensitization from birth to age 17 years longitudinally taking into account exposure early in life and at primary school age. Methods We used data of 854 participants of the prospective Dutch PIAMA birth cohort study with house dust endotoxin measurements at 3 months and/or 5‐6 years and data on asthma and/or allergic sensitization from at least one of 11 follow‐ups until age 17. We assessed overall and age‐specific associations of the prevalence of asthma and sensitization with mattress and living room floor dust concentrations (per gram of dust) and loads (per m2 of sampling surface). Results Higher living room floor dust endotoxin concentrations at 3 months were associated with lower odds of asthma until age 4 [odds ratio (95% confidence interval) ranging from 0.70 (0.51‐0.97) at age 1 to 0.76 (0.57‐1.00) at age 3 per interquartile range increase], but not thereafter in children of allergic mothers. Higher living room floor dust endotoxin at 5‐6 years was associated with higher odds of sensitization at 8‐16 years [eg odds ratio (95% confidence interval) 1.70 (1.17‐2.47) per interquartile range increase in endotoxin load]. Conclusions and clinical relevance House dust endotoxin may have beneficial effects on asthma in preschool children of allergic mothers, which do not persist into adolescence. Beneficial associations with allergic sensitization could not be confirmed.
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Affiliation(s)
- Ulrike Gehring
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Alet H Wijga
- Center for Nutrition, Prevention and Health Services, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Gerard H Koppelman
- Department of Pediatric Pulmonology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, The Netherlands
| | - Judith M Vonk
- Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, The Netherlands.,Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Henriëtte A Smit
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, Netherlands
| | - Bert Brunekreef
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.,Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, Netherlands
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Drago G, Ruggieri S, Cuttitta G, La Grutta S, Ferrante G, Cibella F. Determinants of Allergic Sensitization, Asthma and Lung Function: Results from a Cross-Sectional Study in Italian Schoolchildren. Int J Environ Res Public Health 2020; 17:ijerph17145087. [PMID: 32674528 PMCID: PMC7400051 DOI: 10.3390/ijerph17145087] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 12/13/2022]
Abstract
Prenatal smoking exposure and early-life respiratory infections are major determinants of asthma during childhood. We investigate the factors influencing allergic sensitization (AS), asthma, and lung function in children and the balance between individual and environmental characteristics at different life stages. 1714 children aged 7–16 years and living in southern Italy were investigated using a parental questionnaire, skin prick tests, and spirometry. We found 41.0% AS prevalence: among children without parental history of asthma, male sex, maternal smoking during pregnancy (MatSmoke), and acute respiratory diseases in the first two years of life (ARD2Y) were significant risk factors for AS. MatSmoke was associated (OR = 1.79) with ARD2Y, and this association was influenced by sex. ARD2Y was, in turn, a significant risk factor (OR = 8.53) for childhood current asthma, along with AS (OR up to 3.03) and rhinoconjuctivitis (OR = 3.59). Forced mid-expiratory flow (FEF25–75%) was negatively affected by ARD2Y, with a sex-related effect. Thus, males exposed to MatSmoke had significantly lower FEF25–75% than unexposed males. Despite the difficulty of discriminating among the complex interactions underlying the development of allergic respiratory diseases, ARD2Y appears to strongly influence both asthma and lung function during childhood. In turn, ARD2Y is influenced by prenatal exposure to tobacco smoke with a sex-dependent effect.
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Affiliation(s)
- Gaspare Drago
- National Research Council of Italy, Institute for Biomedical Research and Innovation, 90146 Palermo, Italy; (G.D.); (S.R.); (G.C.); (S.L.G.)
| | - Silvia Ruggieri
- National Research Council of Italy, Institute for Biomedical Research and Innovation, 90146 Palermo, Italy; (G.D.); (S.R.); (G.C.); (S.L.G.)
| | - Giuseppina Cuttitta
- National Research Council of Italy, Institute for Biomedical Research and Innovation, 90146 Palermo, Italy; (G.D.); (S.R.); (G.C.); (S.L.G.)
| | - Stefania La Grutta
- National Research Council of Italy, Institute for Biomedical Research and Innovation, 90146 Palermo, Italy; (G.D.); (S.R.); (G.C.); (S.L.G.)
| | - Giuliana Ferrante
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, 90100 Palermo, Italy;
| | - Fabio Cibella
- National Research Council of Italy, Institute for Biomedical Research and Innovation, 90146 Palermo, Italy; (G.D.); (S.R.); (G.C.); (S.L.G.)
- Correspondence:
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45
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Licari A, Ciprandi R, Marseglia G, Ciprandi G. Anxiety/depression changes are associated with improved asthma control perception in asthmatic adolescents after adequate management. Eur Ann Allergy Clin Immunol 2020; 51:190-192. [PMID: 31305035 DOI: 10.23822/eurannaci.1764-1489.97] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- A Licari
- Department of Pediatrics, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - R Ciprandi
- Psychologist at Istituto Giannina Gaslini, Genoa, Italy
| | - G Marseglia
- Department of Pediatrics, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - G Ciprandi
- Allergy Clinic, Casa di Cura Villa Montallegro, Genoa, Italy
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Warner JO. Asthma/Rhinitis (The United Airway) and Allergy: Chicken or Egg; Which Comes First? J Clin Med 2020; 9:E1483. [PMID: 32423152 DOI: 10.3390/jcm9051483] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/09/2020] [Accepted: 05/11/2020] [Indexed: 12/15/2022] Open
Abstract
While allergy, asthma and rhinitis do not inevitably co-exist, there are strong associations. Not all those with asthma are allergic, rhinitis may exist without asthma, and allergy commonly exists in the absence of asthma and/or rhinitis. This is likely due to the separate gene/environment interactions which influence susceptibility to allergic sensitization and allergic airway diseases. Allergic sensitization, particularly to foods, and eczema commonly manifest early in infancy, and not infrequently are followed by the development of allergic rhinitis and ultimately asthma. This has become known as the "allergic march". However, many infants with eczema never develop asthma or rhinitis, and both the latter conditions can evolve without prior eczema or food allergy. Understanding the mechanisms underlying the ontogeny of allergic sensitization and allergic disease will facilitate rational approaches to the prevention and management of asthma and allergic rhinitis. Furthermore, a range of new, so-called biological, therapeutic approaches, targeting specific allergy-promoting and pro-inflammatory molecules, are now in clinical trials or have been recently approved for use by regulatory authorities and could have a major impact on disease prevention and control in the future. Understanding basic mechanisms will be essential to the employment of such medications. This review will explain the concept of the united airway (rhinitis/asthma) and associations with allergy. It will incorporate understanding of the role of genes and environment in relation to the distinct but interacting origins of allergy and rhinitis/asthma. Understanding the patho-physiological differences and varying therapeutic requirements in patients with asthma, with or without rhinitis, and with or without associated allergy, will aid the planning of a personalized evidence-based management strategy.
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Kortekaas Krohn I, Seys SF, Lund G, Jonckheere A, Dierckx de Casterlé I, Ceuppens JL, Steelant B, Hellings PW. Nasal epithelial barrier dysfunction increases sensitization and mast cell degranulation in the absence of allergic inflammation. Allergy 2020; 75:1155-1164. [PMID: 31769882 DOI: 10.1111/all.14132] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [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: 06/27/2019] [Revised: 09/21/2019] [Accepted: 10/07/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Increased epithelial permeability has been reported in allergic rhinitis, with histamine and type-2 inflammation being responsible for tight junction dysfunction. The impact of an epithelial barrier defect on allergic sensitization and mast cell (MC) degranulation remains speculative. METHODS Transepithelial passage of allergens was evaluated on primary human nasal epithelial cell cultures. Active sensitization was attempted by repeated intranasal ovalbumin (OVA) applications in Naïve mice. In a passive sensitization model, mice were injected with IgE to Dermatophagoides pteronyssinus (rDer p)2 and then exposed intranasally to the allergen. Chitosan was used to disrupt nasal epithelial integrity in vitro and in vivo. RESULTS Chitosan strongly reduced transepithelial electrical resistance and facilitated transepithelial allergen passage in cultured primary nasal epithelial cells. In vivo, intranasal chitosan affected occludin expression and facilitated allergen passage. After epithelial barrier disruption, intranasal OVA application induced higher OVA-specific IgG1 and total IgE in serum, and increased eosinophilia and interleukin-5 in bronchoalveolar lavage (BAL) compared to sham-OVA mice. Chitosan exposure, prior to rDer p2 allergen challenge in passively sensitized mice, resulted in increased β-hexosaminidase levels in serum and BAL compared to sham-rDer p2 mice. Intranasal treatment with the synthetic glucocorticoid fluticasone propionate prevented chitosan-induced barrier dysfunction, allergic sensitization, and MC degranulation. CONCLUSION Epithelial barrier dysfunction facilitates transepithelial allergen passage, allergic sensitization, and allergen-induced MC degranulation even in the absence of inflammatory environment. These results emphasize the crucial role of an intact epithelial barrier in prevention of allergy.
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Affiliation(s)
- Inge Kortekaas Krohn
- Department of Microbiology, Immunology and Transplantation Allergy and Clinical Immunology Research group KU Leuven Leuven Belgium
| | - Sven F. Seys
- Department of Microbiology, Immunology and Transplantation Allergy and Clinical Immunology Research group KU Leuven Leuven Belgium
- European Forum for Research and Education in Allergy and Airway Diseases (EUFOREA) Brussels Belgium
| | | | - Anne‐Charlotte Jonckheere
- Department of Microbiology, Immunology and Transplantation Allergy and Clinical Immunology Research group KU Leuven Leuven Belgium
| | - Isabelle Dierckx de Casterlé
- Department of Microbiology, Immunology and Transplantation Allergy and Clinical Immunology Research group KU Leuven Leuven Belgium
| | - Jan L. Ceuppens
- Department of Microbiology, Immunology and Transplantation Allergy and Clinical Immunology Research group KU Leuven Leuven Belgium
| | - Brecht Steelant
- Department of Microbiology, Immunology and Transplantation Allergy and Clinical Immunology Research group KU Leuven Leuven Belgium
| | - Peter W. Hellings
- Clinical Division of Otorhinolaryngology, Head and Neck Surgery University Hospitals Leuven Leuven Belgium
- Clinical Division of Otorhinolaryngology, Head and Neck Surgery Academic Medical Center Amsterdam The Netherlands
- Faculty of Medicine and Health Sciences University of Ghent Ghent Belgium
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48
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Bush A. Which Child with Asthma is a Candidate for Biological Therapies? J Clin Med 2020; 9:jcm9041237. [PMID: 32344781 PMCID: PMC7230909 DOI: 10.3390/jcm9041237] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 03/17/2020] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 01/21/2023] Open
Abstract
In asthmatic adults, monoclonals directed against Type 2 airway inflammation have led to major improvements in quality of life, reductions in asthma attacks and less need for oral corticosteroids. The paediatric evidence base has lagged behind. All monoclonals currently available for children are anti-eosinophilic, directed against the T helper (TH2) pathway. However, in children and in low and middle income settings, eosinophils may have important beneficial immunological actions. Furthermore, there is evidence that paediatric severe asthma may not be TH2 driven, phenotypes may be less stable than in adults, and adult biomarkers may be less useful. Children being evaluated for biologicals should undergo a protocolised assessment, because most paediatric asthma can be controlled with low dose inhaled corticosteroid if taken properly and regularly. For those with severe therapy resistant asthma, and refractory asthma which cannot be addressed, the two options if they have TH2 inflammation are omalizumab and mepolizumab. There is good evidence of efficacy for omalizumab, particularly in those with multiple asthma attacks, but only paediatric safety, not efficacy, data for mepolizumab. There is an urgent need for efficacy data in children, as well as data on biomarkers to guide therapy, if the right children are to be treated with these powerful new therapies.
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Affiliation(s)
- Andrew Bush
- Imperial College & Royal Brompton Harefield NHS Foundation Trust, London SW£ dNP, UK
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Araujo GR, Aglas L, Vaz ER, Machado Y, Huber S, Himly M, Duschl A, Goulart LR, Ferreira F. TGFβ1 mimetic peptide modulates immune response to grass pollen allergens in mice. Allergy 2020; 75:882-891. [PMID: 31750952 PMCID: PMC7217028 DOI: 10.1111/all.14108] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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] [Received: 04/25/2019] [Revised: 09/22/2019] [Accepted: 09/29/2019] [Indexed: 12/15/2022]
Abstract
Background Transforming growth factor β1 (TGFβ1) is a cytokine that exerts immunosuppressive functions, as reflected by its ability to induce regulatory T (Treg) cell differentiation and inhibit Th1 and Th2 responses. Hence, peptides that mimic the active core domain of TGFβ1 may be promising candidates for modulation of the allergic response. This study aimed to investigate a synthetic TGFβ1 mimetic peptide (TGFβ1‐mim) for its ability to modulate the immune response during allergic sensitization to grass pollen allergens. Methods The in vitro action of TGFβ1‐mim was evaluated in human lung epithelial cells, Jurkat cells, and rat basophilic leukemia cells. The in vivo action was evaluated in a murine model of Phl p 5 allergic sensitization. Additionally, the Th2 modulatory response was evaluated in IL‐4 reporter mice. Results In vitro, TGFβ1‐mim downregulated TNF‐α production, IL‐8 gene expression, and cytokine secretion, upregulated IL‐10 secretion, and inhibited Phl p 5‐induced basophil degranulation. During Phl p 5 sensitization in mice, TGFβ1‐mim downregulated IL‐2, IL‐4, IL‐5, IL‐13, and IFN‐γ, upregulated IL‐10, and induced Treg cell production. Furthermore, mice treated with TGFβ1‐mim had lower levels of IgE, IgG1, IgG2a and higher levels of IgA antibodies than control mice. In a reporter mouse, the mimetic inhibited Th2 polarization. Conclusion The TGFβ1‐mim efficiently modulated various important events that exacerbate the allergic microenvironment, including the production of main cytokines that promote Th1 and Th2 differentiation, and the induction of allergen‐specific regulatory T cells, highlighting its potential use in therapeutic approaches to modulate the immune response toward environmental allergens.
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Affiliation(s)
- Galber R. Araujo
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Lorenz Aglas
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Emília R. Vaz
- Laboratory of Nanobiotechnology Institute of Biotechnology Federal University of Uberlândia Uberlândia Brazil
| | - Yoan Machado
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Sara Huber
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Martin Himly
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Albert Duschl
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Luiz R. Goulart
- Laboratory of Nanobiotechnology Institute of Biotechnology Federal University of Uberlândia Uberlândia Brazil
| | - Fatima Ferreira
- Department of Biosciences University of Salzburg Salzburg Austria
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50
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Chiu CY, Cheng ML, Chiang MH, Wang CJ, Tsai MH, Lin G. Metabolomic Analysis Reveals Distinct Profiles in the Plasma and Urine Associated with IgE Reactions in Childhood Asthma. J Clin Med 2020; 9:jcm9030887. [PMID: 32213896 PMCID: PMC7141511 DOI: 10.3390/jcm9030887] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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: 02/20/2020] [Revised: 03/09/2020] [Accepted: 03/22/2020] [Indexed: 12/13/2022] Open
Abstract
Several metabolomics studies have identified altered metabolic pathways that are related to asthma. However, an integrative analysis of the metabolic responses across blood and urine for a comprehensive framework of asthma in early childhood remains lacking. Fifty-four age-matched children with asthma (n = 28) and healthy controls (n = 26) were enrolled. Metabolome analysis of the plasma and urine samples was performed using 1H-nuclear magnetic resonance (NMR) spectroscopy coupled with partial least-squares discriminant analysis (PLS-DA). Integrated analysis of blood and urine metabolic profiling related to IgE reactions for childhood asthma was investigated. A significantly higher plasma histidine level was found, in parallel with lower urinary 1-methylnicotinamide and trimethylamine N-oxide (TMAO) levels, in children with asthma compared to healthy controls. Compared to children without allergic sensitization, 11 (92%) plasma metabolites and 8 (80%) urinary metabolites were found to be significantly different in children with IgE and food sensitization respectively. There were significant correlations between the plasma 3-hydroxybutyric acid and excreted volumes of the hydroxy acids, which were strongly correlated to plasma leucine and valine levels. Urine N-phenylacetylglycine, a microbial-host co-metabolite, was strongly correlated with total serum and food allergen-specific IgE levels. Plasma pyruvate and urine valine, leucine, and isoleucine degradation metabolisms were significantly associated with allergic sensitization for childhood asthma. In conclusion, blood and urine metabolome reflect different metabolic pathways in allergic reactions. Plasma pyruvate metabolism to acetic acid appears to be associated with serum IgE production, whereas urine branched-chain amino acid metabolism primarily reflects food allergic reactions against allergies.
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Affiliation(s)
- Chih-Yung Chiu
- Division of Pediatric Pulmonology, Department of Pediatrics, Chang Gung Memorial Hospital at Linkou, and Chang Gung University, Taoyuan 333, Taiwan;
- Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan;
- Correspondence: (C.-Y.C); (G.L.)
| | - Mei-Ling Cheng
- Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan;
- Department of Biomedical Sciences, and Metabolomics Core Laboratory, Healthy Aging Research Center, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Meng-Han Chiang
- Department of Medical Imaging and Intervention, Imaging Core Laboratory, Institute for Radiological Research, and Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
| | - Chia-Jung Wang
- Division of Pediatric Pulmonology, Department of Pediatrics, Chang Gung Memorial Hospital at Linkou, and Chang Gung University, Taoyuan 333, Taiwan;
| | - Ming-Han Tsai
- Department of Pediatrics, Chang Gung Memorial Hospital at Keelung, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
| | - Gigin Lin
- Department of Medical Imaging and Intervention, Imaging Core Laboratory, Institute for Radiological Research, and Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
- Correspondence: (C.-Y.C); (G.L.)
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