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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-10-19
pubmed:abstractText
Six monoclonal antibodies against Bet v I, the major cross-reactive allergen of birch pollen (Betula verrucosa), were obtained. Four did not react with fruits, but two monoclonal antibodies (mAbs) (5H8 and 9C11) were reactive with apple and other fruits. These two cross-reactive antibodies reacted with identical or overlapping sites, but differed in their relative degree of cross-reactivity toward various fruits and hazelnut. Cross-reactive human IgE antibodies reacted with a nonoverlapping epitope, as indicated by results of a two-site radioimmunoassay (RIA) with the fruit-reactive mAb 9C11. By isoelectric focusing (IEF) in conjunction with immunoblotting, a maximum of seven isoforms could be distinguished. Depletion of birch-pollen extract for Bet v I with the most reactive mAb (7F7) removed approximately 95% of the IgE cross-reactivity between birch pollen and apple extract. The remaining 5% cross-reactive material was still capable of inhibiting the binding of IgE to apple allergen completely, and was reactive with mAbs 5H8 and 3C4. By means of IEF/immunoblot, it was shown that these mAbs recognize an isoform of Bet v I that is poorly, if at all, recognized by mAb 7F7. These results illustrate the heterogeneity of Bet v I, both with respect to the cross-reactive sites as well as to the backbone structure. This type of heterogeneity has possible implications for the use of monoclonal antibodies in allergen standardization.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0105-4538
pubmed:author
pubmed:issnType
Print
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
215-20
pubmed:dateRevised
2011-6-21
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Multiplicity of cross-reactive epitopes on Bet v I as detected with monoclonal antibodies and human IgE.
pubmed:affiliation
Central Laboratory, The Netherlands Red Cross Blood Transfusion Service, University of Amsterdam.
pubmed:publicationType
Journal Article, Comparative Study