Related Experiment Video

Updated: May 16, 2026

Basophil Activation Test for Allergy Diagnosis
07:22

Basophil Activation Test for Allergy Diagnosis

Published on: May 31, 2021

Update on the performance and application of basophil activation tests

Emily C McGowan1, Sarbjit Saini

  • 1Division of Allergy and Clinical Immunology, Johns Hopkins Asthma and Allergy Center, 5501 Hopkins Bayview Circle, Baltimore, MD 21224, USA. emcgowa4@jhmi.edu

Current Allergy and Asthma Reports
|November 29, 2012
PubMed

The basophil activation test (BAT) is a flow-cytometry-based functional assay that assesses the degree of cell activation after exposure to a stimuli. Though no standardized technique currently exists, recent advances have improved the performance of this assay, including identification of new basophil-specific markers and comparisons of the expression of CD63 to CD203c during activation. The basophil activation test has also been validated for many IgE-mediated disease conditions, which have been extensively reviewed elsewhere. This review focuses on the most recent applications of this test to the diagnosis of allergy to drugs, foods, venoms, and pollens, and the evolving role of the BAT in monitoring immunotherapy.

More Related Videos

Basophil Activation Test for Investigation of IgE-Mediated Mechanisms in Drug Hypersensitivity10:22

Basophil Activation Test for Investigation of IgE-Mediated Mechanisms in Drug Hypersensitivity

Published on: September 16, 2011

Humanized Mediator Release Assay as a Read-Out for Allergen Potency10:22

Humanized Mediator Release Assay as a Read-Out for Allergen Potency

Published on: June 29, 2021

Related Concept Videos

B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...