1. Natural rubber latex and chestnut allergy: cross-reactivity or co-sensitization?
- Author
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Raulf-Heimsoth M, Kespohl S, Crespo JF, Rodriguez J, Feliu A, Brüning T, and Rihs HP
- Subjects
- Cross Reactions, Female, Humans, Hypersensitivity, Immediate immunology, Immunoglobulin E blood, Male, Nuts immunology, Profilins immunology, Allergens immunology, Fagaceae immunology, Immunoglobulin E immunology, Latex immunology, Latex Hypersensitivity immunology
- Abstract
Background: Chestnut and natural rubber latex (NRL) allergy are often associated in the latex-fruit syndrome., Aim of the Study: To establish whether the concurrent NRL and chestnut IgE antibody reactivity are the results of co-sensitization or cross-reactivity., Methods: Sera from 19 patients with chestnut- and NRL-specific IgE were selected and tested for reactivity with recombinant (r) latex allergens. Cross-reactivity was explored by IgE-inhibition experiments using chestnut or NRL allergens as solid phase on ImmunoCAP., Results: IgE-antibodies were detected to rHev b 6.01 (prohevein) in 58% of the sera, to rHev b 5 in 32%, to rHev b 12 in four of 13 sera, to rHev b 7.02 and rHev b 11 in four, and to rHev b 1 in two of 19 sera. rHev b 8-IgE antibodies were found in nine sera (47%), whereas six displayed mono-sensitization to rHev b 8 with regard to our test panel. Three of 16 sera showed IgE to cross-reactive carbohydrate determinants. In most sera recognizing rHev b 5 and/or rHev b 6.01 as major allergens the IgE-reactivity to NRL remained unaffected by chestnut extract and chestnut-IgE remained unaffected by NRL extract. Conversely, in sera with rHev b 8 as dominant allergen IgE-binding to NRL was nearly completely inhibited by chestnut and vice versa. IgE-binding to rHev b 8 was abolished by chestnut extract., Conclusions: Although patients have concomitant IgE antibody reactivity to chestnut and NRL, cross-reactivity could be demonstrated mainly in those patients with IgE to Hev b 8 (profilin) from NRL.
- Published
- 2007
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