Food allergy severity predictions based on cellular in vitro tests

Area of Science:

• Immunology
• Allergology
• Clinical Medicine

Background:

• Food allergy prevalence is rising globally.
• Allergic reaction severity in food allergies is unpredictable.
• Identifying high-risk patients is essential for personalized management.

Purpose of the Study:

• To review evidence for predicting severe food allergic reactions.
• To evaluate biomarkers for risk stratification in food allergy.

Main Methods:

• Review of existing scientific literature.
• Analysis of studies on specific IgE levels and food allergen components.
• Evaluation of cellular tests, including basophil and mast cell activation assays.

Main Results:

• Evidence on specific IgE quantity correlating with severity is conflicting.
• Allergen-specific IgE to components (e.g., Ara h 2) can offer additional insights.
• IgE quality (affinity, avidity, diversity, activity) and cellular activation tests are more indicative of reaction severity.

Conclusions:

• Biomarkers provide a single aspect of the allergic response.
• Cellular function tests offer a comprehensive measure of IgE's role in severe reactions.
• Interpreting biomarkers within the individual patient's clinical context is paramount.