Molecular diagnosis of cow’s milk allergy
DOI:
https://doi.org/10.13112/pc.434Keywords:
ALLERGY AND IMMUNOLOGY, MILK, CHILD, PATHOLOGY, MOLECULARAbstract
Cow’s milk allergy is the most common allergic disease in infancy. About 80% of protein is present in the solid milk fraction (caseins, casein complex), and about 20% in the liquid milk fraction (whey). Whey contains α-lactalbumin (Bos d 4), β-lactoglobulin (Bos d 5), bovine serum albumin (Bos d 6), immunoglobulins (Bos d 7) and lactoferrin. Total casein (Bos d 8) consists of four different fractions: αS1-casein (Bos d 9), αS2-casein (Bos d 10), β-casein (Bos d 11) and κ-casein (Bos d 12). Determination of these individual allergen molecules is carried out using the so-called component resolved diagnostics (CRD), which allows identification of major (Bos d 4 and Bos d 5 and all casein molecules), minor (Bos d 6, Bos d 7 and lactoferrin), as well as cross-reactive (Bos d 5 and Bos d 6) allergen molecules. Future research will make it possible to assess diagnostic role of detecting individual allergen molecules. Progress is also expected in the field of molecular biology, genomics, proteomics and bioinformatics.
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