Food allergy as defined by component resolved diagnosis

Area of Science:

• Allergy and Immunology
• Molecular Diagnostics
• Food Science

Background:

• Traditional food allergy diagnosis via skin or in vitro tests with allergen extracts lacks sufficient accuracy, often requiring confirmation by food challenges.
• The advent of molecular allergens (recombinant or purified) has revolutionized diagnostic methodologies in food allergy.
• Component Resolved Diagnosis (CRD) enables a detailed characterization of individual sensitization profiles.

Purpose of the Study:

• To provide an updated overview of food allergen molecules from both plant and animal sources.
• To review current techniques for detecting allergen molecules, including singleplex and multiplex assays.
• To discuss the implications of molecular diagnostics for patient management and the future of food allergy immunotherapy.

Main Methods:

• Review of scientific literature on molecular allergens and diagnostic techniques.
• Analysis of singleplex (single reagent) and multiplex (array) testing methods.
• Inclusion of information on patents related to food allergens.

Main Results:

• Molecular allergens allow for precise identification of sensitization profiles, differentiating genuine sensitizers from panallergens or cross-reactive molecules.
• Multiplex assays provide comprehensive data on patient sensitization, aiding in accurate diagnosis.
• Understanding specific allergen molecules is critical for effective allergy management and upcoming immunotherapy.

Conclusions:

• Component Resolved Diagnosis (CRD) significantly enhances the diagnostic accuracy of food allergies.
• Molecular diagnostics empower physicians with detailed patient information for tailored allergy management.
• Identifying causative allergens through molecular methods is essential for advancing food allergy treatment, including immunotherapy.