Back to Search
Start Over
Associations between specific IgE sensitization to 26 respiratory allergen molecules and HLA class II alleles in the EGEA cohort.
- Source :
-
Allergy [Allergy] 2021 Aug; Vol. 76 (8), pp. 2575-2586. Date of Electronic Publication: 2021 Apr 07. - Publication Year :
- 2021
-
Abstract
- Background: Allergy, the most frequent immune disorder affecting 30% of the world's population, is the consequence of immunoglobin E (IgE) sensitization to allergens. Among the genetic factors suspected to be involved in allergy, the HLA class-II genomic region is a strong candidate.<br />Objective: To assess the association between HLA class-II alleles and specific IgE (sIgE) sensitization to a large number of respiratory allergen molecules.<br />Methods: The analysis relied on 927 participants of the EGEA cohort, including 497 asthmatics. The study focuses on 26 aeroallergens recognized by sIgE in at least 5% of the study population (determined with the MEDALL chip with sIgE ≥ 0.3 ISU) and 23 imputed HLA class-II alleles. For each sIgE sensitization and HLA class-II allele, we fitted a logistic regression model accounting for familial dependence and adjusted for gender, age, and genetic principal components. p-values were corrected for multiple comparisons (False Discovery Rate).<br />Results: Most of the 19 statistically significant associations observed regard pollen allergens (mugwort Art v 1, olive tree Ole e 1, timothy grass Phl p 2, Phl p 5 and plantain Pla l 1), three were mold allergen (Alternaria Alt a 1), and a single one regards house dust mite allergen (Der p 7). No association was observed with pet allergens. The strongest associations were found with mugwort Art v 1 (OR = 5.42 (95%CI, 3.30; 8.88), 4.14 (2.65; 6.47), 3.16 (1.88; 5.31) with DQB1*05:01, DQA1*01:01 and DRB1*01:01, respectively).<br />Conclusion: Our results support the important role of HLA class-II alleles as immune response genes predisposing their carriers for sensitization to various major pollen allergens.<br /> (© 2021 EAACI and John Wiley and Sons A/S. Published by John Wiley and Sons Ltd.)
- Subjects :
- Alleles
Humans
Immunoglobulin E
Phleum
Allergens
Hypersensitivity genetics
Subjects
Details
- Language :
- English
- ISSN :
- 1398-9995
- Volume :
- 76
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Allergy
- Publication Type :
- Academic Journal
- Accession number :
- 33742477
- Full Text :
- https://doi.org/10.1111/all.14820