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Evolution and predictive value of IgE responses toward a comprehensive panel of house dust mite allergens during the first 2 decades of life.
- Source :
-
The Journal of allergy and clinical immunology [J Allergy Clin Immunol] 2017 Feb; Vol. 139 (2), pp. 541-549.e8. Date of Electronic Publication: 2016 Oct 25. - Publication Year :
- 2017
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Abstract
- Background: The evolution of the IgE response to the numerous allergen molecules of Dermatophagoides pteronyssinus is still unknown.<br />Objectives: We sought to characterize the evolutionary patterns of the IgE response to 12 molecules of D pteronyssinus from birth to adulthood and to investigate their determinants and clinical relevance.<br />Methods: We investigated the clinical data and sera of 722 participants in the German Multicenter Allergy Study, a birth cohort started in 1990. Diagnoses of current allergic rhinitis (AR) related to mite allergy and asthma were based on yearly interviews at the ages of 1 to 13 years and 20 years. IgE to the extract and 12 molecules of D pteronyssinus were tested by means of ImmunoCAP and microarray technology, respectively, in sera collected at ages 1, 2, 3, 5, 6, 7, 10, 13, and 20 years. Exposure to mites at age 6 and 18 months was assessed by measuring Der p 1 weight/weight concentration in house dust.<br />Results: One hundred ninety-one (26.5%) of 722 participants ever had IgE to D pteronyssinus extract (≥0.35 kU <subscript>A</subscript> /L). At age 20 years, their IgE recognized most frequently Der p 2, Der p 1, and Der p 23 (group A molecules; prevalence, >40%), followed by Der p 5, Der p 7, Der p 4, and Der p 21 (group B molecules; prevalence, 15% to 30%) and Der p 11, Der p 18, clone 16, Der p 14, and Der p 15 (group C molecules; prevalence, <10%). IgE sensitization started almost invariably with group A molecules and expanded sequentially first to group B and finally to group C molecules. Early IgE sensitization onset, parental hay fever, and higher exposure to mites were associated with a broader polymolecular IgE sensitization pattern. Participants reaching the broadest IgE sensitization stage (ie, ABC) had significantly higher risk of mite-related AR and asthma than unsensitized participants. IgE to Der p 1 or Der p 23 at age 5 years or less predicted asthma at school age.<br />Conclusions: Parental hay fever and early exposure to D pteronyssinus allergens promote IgE polysensitization to several D pteronyssinus molecules, which in turn predicts current mite-related AR and current/future asthma. These results might inspire predictive algorithms and prevention strategies against the progression of IgE sensitization to mites toward AR and asthma.<br /> (Copyright © 2016 American Academy of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.)
- Subjects :
- Adolescent
Adult
Age of Onset
Animals
Asthma epidemiology
Asthma immunology
Child
Child, Preschool
Cohort Studies
Cross Reactions
Female
Follow-Up Studies
Germany epidemiology
Humans
Infant
Infant, Newborn
Male
Predictive Value of Tests
Prevalence
Prognosis
Pyroglyphidae immunology
Rhinitis, Allergic epidemiology
Rhinitis, Allergic immunology
Risk Factors
Young Adult
Antigens, Dermatophagoides immunology
Asthma diagnosis
Immunoglobulin E metabolism
Rhinitis, Allergic diagnosis
Subjects
Details
- Language :
- English
- ISSN :
- 1097-6825
- Volume :
- 139
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- The Journal of allergy and clinical immunology
- Publication Type :
- Academic Journal
- Accession number :
- 27793411
- Full Text :
- https://doi.org/10.1016/j.jaci.2016.08.014