Assessing the contributions of phylogenetic and environmental determinants of allergic cosensitization to fungi in humans.
Journal
Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology
ISSN: 1534-4436
Titre abrégé: Ann Allergy Asthma Immunol
Pays: United States
ID NLM: 9503580
Informations de publication
Date de publication:
26 Oct 2023
26 Oct 2023
Historique:
received:
27
07
2023
revised:
29
09
2023
accepted:
13
10
2023
pubmed:
29
10
2023
medline:
29
10
2023
entrez:
28
10
2023
Statut:
aheadofprint
Résumé
Understanding how allergies to 1 environmental fungus can lead to cosensitization to related fungi is important for the clinical management of allergies. Cosensitization can be caused by monosensitization combined with antibody cross-reactivity, or by coexposures driving independent sensitizations. A pioneering study showed that patterns of IgE cosensitization among 17 fungal species mirror fungal phylogeny. This could reflect either epitope or habitat similarity. Thanks to an improved understanding of fungal phylogeny, larger serologic testing datasets, and environmental data on household fungi, we can now characterize the relationship between cosensitization, species similarity, and likely coexposure with greater precision. To assess the degree to which IgE cosensitization in a group of 17 fungi can be attributed to species similarity or environmental coexposure. Cosensitization patterns among 17 fungal species were estimated from a dataset of approximately 8 million serologic tests on 1.6 million patients. Linear regression of cosensitization on phylogenetic distance and imputed coexposure was performed. In addition, branch lengths for the phylogenetic tree were re-estimated on the basis of cosensitization and compared with corresponding phylogenetic branch lengths. Phylogenetic distance explains much of the observed cosensitization (adjusted r Combined evidence from clinical IgE testing data on fungi, along with phylogenetic and environmental exposure data, supports the hypothesis that cosensitization is caused primarily by monosensitization plus cross-reactivity, rather than multisensitization. A serologic test result should be interpreted as pointing to a group of related species that include the sensitizing agent rather than as uniquely identifying the agent. The identified patterns of cross-reactivity may help optimize test panel design.
Sections du résumé
BACKGROUND
BACKGROUND
Understanding how allergies to 1 environmental fungus can lead to cosensitization to related fungi is important for the clinical management of allergies. Cosensitization can be caused by monosensitization combined with antibody cross-reactivity, or by coexposures driving independent sensitizations. A pioneering study showed that patterns of IgE cosensitization among 17 fungal species mirror fungal phylogeny. This could reflect either epitope or habitat similarity. Thanks to an improved understanding of fungal phylogeny, larger serologic testing datasets, and environmental data on household fungi, we can now characterize the relationship between cosensitization, species similarity, and likely coexposure with greater precision.
OBJECTIVE
OBJECTIVE
To assess the degree to which IgE cosensitization in a group of 17 fungi can be attributed to species similarity or environmental coexposure.
METHODS
METHODS
Cosensitization patterns among 17 fungal species were estimated from a dataset of approximately 8 million serologic tests on 1.6 million patients. Linear regression of cosensitization on phylogenetic distance and imputed coexposure was performed. In addition, branch lengths for the phylogenetic tree were re-estimated on the basis of cosensitization and compared with corresponding phylogenetic branch lengths.
RESULTS
RESULTS
Phylogenetic distance explains much of the observed cosensitization (adjusted r
CONCLUSION
CONCLUSIONS
Combined evidence from clinical IgE testing data on fungi, along with phylogenetic and environmental exposure data, supports the hypothesis that cosensitization is caused primarily by monosensitization plus cross-reactivity, rather than multisensitization. A serologic test result should be interpreted as pointing to a group of related species that include the sensitizing agent rather than as uniquely identifying the agent. The identified patterns of cross-reactivity may help optimize test panel design.
Identifiants
pubmed: 37898326
pii: S1081-1206(23)01344-3
doi: 10.1016/j.anai.2023.10.016
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Disclosures Dr Letovsky, Mr Robinson, Dr Valcour, and Dr Sullivan are employed by Labcorp, which performs commercial allergy testing. Dr Kwong is currently a consultant and independent contractor for Thermo-Fisher Scientific. Dr Liu reports personal fees from Phadia ThermoFisher, grants and nonfinancial support from ResMed Propeller Health, nonfinancial support from Revenio, grants and personal fees from Avillion, and personal fees from Labcorp, all outside the submitted work.