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- Title
Microarray and allergenic activity assessment of milk allergens H. Hochwallner et al Microarrayed milk allergens.
- Authors
Hochwallner, H.; Schulmeister, U.; Swoboda, I.; Balic, N.; Geller, B.; Nystrand, M.; Härlin, A.; Thalhamer, J.; Scheiblhofer, S.; Niggemann, B.; Quirce, S.; Ebner, C.; Mari, A.; Pauli, G.; Herz, U.; Van Tol, E.A.F.; Valenta, R.; Spitzauer, S.
- Abstract
Cow's milk is one of the most common causes of food allergy affecting approximately 2.5% of infants in the first years of their life. However, only limited information regarding the allergenic activity of individual cow's milk allergens is available. To analyse the frequency of IgE reactivity and to determine the allergenic activity of individual cow's milk allergens. A nitrocellulose-based microarray, based on purified natural and recombinant cow's milk allergens was used to determine IgE reactivity profiles using sera from 78 cow's milk-sensitized individuals of varying ages. The allergenic activity of the individual allergens was tested using patients' sera for loading rat basophil leukaemia cells (RBL) expressing the α-chain of the human receptor FcɛRI. Using the microarray and the RBL assay, cow's milk allergens were assessed for frequency of IgE recognition and allergenic activity. Moreover, the RBL assay allowed distinguishing individuals without or with mild clinical reactions from those with severe systemic or gastrointestinal symptoms as well as persons who grew out cow's milk allergy from those who did not. Component-resolved testing using milk allergen microarrays and RBL assays seems to provide useful additional diagnostic information and may represent a basis for future forms of prophylactic and therapeutic strategies for cow's milk allergy. Cite this as: H. Hochwallner, U. Schulmeister, I. Swoboda, N. Balic, B. Geller, M. Nystrand, A. Härlin, J. Thalhamer, S. Scheiblhofer, B. Niggemann, S. Quirce, C. Ebner, A. Mari, G. Pauli, U. Herz, E.A.F. van Tol, R. Valenta and S. Spitzauer, Clinical & Experimental Allergy, 2010 (40) 1809-1818.
- Subjects
ALLERGENS; MILK; BASOPHILS; PROTEIN microarrays; FIRE assay; LABORATORY mice
- Publication
Clinical & Experimental Allergy, 2010, Vol 40, Issue 12, p1809
- ISSN
0954-7894
- Publication type
Article
- DOI
10.1111/j.1365-2222.2010.03602.x