Cross-sectional survey on immunoglobulin E reactivity in 23 077 subjects using an allergenic molecule-based microarray detection system

Summary Background The availability of allergenic molecules and high‐throughput microtechnologies allow the collection of a large number of IgE results at the same time in a single test. This can be carried out applying the test in the routine diagnostic work‐up. Objective The aim of this study was...

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Veröffentlicht in:Clinical and experimental allergy Jg. 40; H. 6; S. 911 - 921
Hauptverfasser: Scala, E., Alessandri, C., Bernardi, M. L., Ferrara, R., Palazzo, P., Pomponi, D., Quaratino, D., Rasi, C., Zaffiro, A., Zennaro, D., Mari, A.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Oxford, UK Blackwell Publishing Ltd 01.06.2010
Blackwell
Wiley Subscription Services, Inc
Schlagworte:
Adolescent
Adult
Age Distribution
allergenic molecules
Allergens - genetics
Allergens - immunology
Allergies
Biological and medical sciences
cluster analysis
Cross-Sectional Studies
epidemiology
Female
Fundamental and applied biological sciences. Psychology
Fundamental immunology
Humans
Hypersensitivity - diagnosis
Hypersensitivity - epidemiology
Hypersensitivity - immunology
IgE
Immunoglobulin E - blood
Immunoglobulin E - immunology
Italy - epidemiology
Male
microarray
Middle Aged
Oligonucleotide Array Sequence Analysis - methods
Sex Distribution
Young Adult
Italy
Human
Immunopathology
Allergy
IgE
Epidemiology
Survey
microarray
Immunology
Reactivity
Surveillance
allergenic molecules
Diagnosis
Detection
cluster analysis
ISSN:0954-7894, 1365-2222, 1365-2222
Online-Zugang:Volltext
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Zusammenfassung:Summary Background The availability of allergenic molecules and high‐throughput microtechnologies allow the collection of a large number of IgE results at the same time in a single test. This can be carried out applying the test in the routine diagnostic work‐up. Objective The aim of this study was to make a cross‐sectional evaluation of the raw prevalence of IgE reactivity to allergenic molecules in serum samples from a cohort of Italian patients using an innovative tool. Methods The ISAC, a microarray system, has been used for specific IgE detection using 75 different allergenic molecules. Sera were collected from 23 077 unselected consecutive individuals complaining about any allergic disease. Results Sixteen thousand four hundred and eight of 23 077 patients had IgE to at least one of 75 allergenic molecules. The top‐ranked molecules in this cohort were Cup a 1 (42.7%), Der f 2 (38.7%), and Phl p 1 (37.9%), whereas all the other allergens tested scored in a range between 36.8% and 0.04%, including the first food allergen, Pru p 3, ranked 15th (9.79%). Prevalence varied quite markedly depending on the age range considered, and showing a different behaviour in the lifetime sensitization process. Unsupervised two‐way hierarchical clustering analysis generated distinctive patterns of reactivity as the result of IgE recognition of either homologous allergens belonging to different biological sources or non‐homologous belonging to the same biological source. Conclusions Allergen‐based microarray is a tool for the detection of IgE‐related sensitization to panels of allergens and gives a more precise and comprehensive evaluation for an IgE‐based epidemiology. This insight brings data for better understanding of the sensitization process.
Bibliographie:ArticleID:CEA3470
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ISSN:0954-7894
1365-2222
1365-2222
DOI:10.1111/j.1365-2222.2010.03470.x