Cited by 170Allergic Rhinitis and SensitizationMast cells and histamineAsthma and respiratory diseases

The DOI matches its Crossref record; 33 of the 34 references it cites were found in a registry or an index.

Recombinant allergens promote expression of CD203c on basophils in sensitized individuals

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Abstract

Background Traditionally, the diagnosis of type I allergies is based on clinical data, skin test results, and laboratory test results with allergen extracts. During the past few years, several attempts have been made to refine diagnostic assays in clinical allergy by introducing recombinant allergens and novel markers of IgE-dependent cell activation.Objectives We have identified the ectoenzyme CD203c as a novel basophil antigen that is upregulated on IgE receptor cross-linkage. In this study we applied CD203c and a panel of recombinant allergens to establish a novel basophil test that allows for a reliable quantification of IgE-dependent responses at the effector cell level.Methods Patients allergic to birch (Bet v 1, n = 15; Bet v 2, n = 8) and grass (Phl p 1, n = 15; Phl p 2, n = 10; Phl p 5, n = 14) pollen allergens, as well as 10 nonallergic donors, were examined. Basophils were exposed to various concentrations of recombinant allergens for 15 minutes and then examined for expression of CD203c by means of flow cytometry. CD203c upregulation was correlated with the increase in CD63.Results Exposure to recombinant allergens resulted in a dose-dependent increase in expression of CD203c on peripheral blood basophils in sensitized individuals, whereas no increase was seen in healthy control subjects. The effects of the recombinant allergens on CD203c expression were also time dependent. There was a good correlation between allergen-induced upregulation of CD203c and upregulation of CD63 (R = 0.76).Conclusion Flow cytometric quantitation of CD203c on blood basophils exposed to recombinant allergens is a useful approach to determine the allergic state in sensitized individuals and represents a basis for a sensitive novel allergy test.

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Crossref · 10.1067/mai.2002.125257

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Metadata

Authors
Hauswirth, A. W., Natter, S., Ghannadan, M., Majlesi, Y., Schernthaner, G.-H., Sperr, W. R., Bühring, H.-J., Valenta, R., & Valent, P.
Affiliations
  • University of Vienna (AT)
  • FWF Austrian Science Fund (AT)
Venue
Journal of Allergy and Clinical Immunology
Publisher
Elsevier BV
Published
2002-07
Volume
110
Issue
1
Pages
102-109
ISSN
0091-6749 (ISSN-L)
OpenAlex
W2075788391
Cited by
169
References
34
Citations by year
2026: 1 · 2025: 2 · 2023: 3 · 2022: 3 · 2021: 5 · 2020: 1 · 2019: 4 · 2018: 4 · 2017: 7 · 2016: 12 · 2015: 13 · 2014: 7 · 2013: 9 · 2012: 12
FWCI
4.00
Type
journal article
Language
en
Open access
Locations
  • Journal of Allergy and Clinical Immunology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Immunology and Allergy › Allergic Rhinitis and Sensitization
  • Life Sciences › Immunology and Microbiology › Immunology › Mast cells and histamine
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Asthma and respiratory diseases
Keywords
CD203c, basophils, recombinant allergens, CD63, birch pollen allergen, grass pollen allergens, Bet v 1, Bet v 2, Phl p 1, Phl p 5, allergy diagnosis
MeSH terms
Allergens, Basophils, Female, Flow Cytometry, Poaceae, Histamine Release, Humans, Hypersensitivity, Immediate, Immunoglobulin E, Male, Phosphoric Diester Hydrolases, Plant Proteins, Platelet Membrane Glycoproteins, Pyrophosphatases, Recombinant Proteins, Antigens, CD, Up-Regulation, Betula, Tetraspanin 30

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