Mugwort and sage (Artemisia) pollen cross-reactivity: ELISA inhibition and immunoblot evaluation
Mugwort and sage (Artemisia) pollen cross-reactivity: ELISA inhibition and immunoblot evaluation
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DOI:
10.1016/s1081-1206(10)63025-6
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发表时间:
1997-10-01
影响因子:
5.9
通讯作者:
Weber, RW
中科院分区:
文献类型:
--
作者:
Katial, RK;Lin, FL;Weber, RW
Background: Plants of the genus Artemisia are a source of fall allergic symptoms, particularly in the western United States. Studies have characterized the allergens in one of the major species (A. vulgaris) but currently there are no cross-reactivity data on the major United States species.Objective: The purpose of this study was to investigate the in vitro cross-reactivity among nine Artemisia species: A, frigida, A. annua, A. biennis, A. filifolia, A. tridentata, A. californica, A, gnaphalodes, A. ludoviciana, and A. vulgaris.Methods: The cross-reactivity was demonstrated with the use of enzyme-linked immunosorbent assay (ELISA) inhibitions and immunoblotting techniques utilizing a serum pool from patients allergic Co Artemisia species.Results: The enzyme-linked immunosorbent assay inhibitions revealed strong cross-reactivity among all nine species with A. biennis and A. tridentata being two of the strongest inhibitors. The polyacrylamide gel electrophoresis showed a great deal of similarity in the bands among the nine species. The nitrocellulose blots showed similar IgE binding patterns among the Artemisia species with strong inhibition among all nine extracts.Conclusions: These data all demonstrate very strong in vitro cross-reactivity among the nine Artemisia species studied. Such data have significant clinical relevance, suggesting that a single Artemisia species may be sufficient for allergy skin testing and formulation of immunotherapy extracts.