Open AccessPositive basophil activation test with soymilk protein identifies Gly m 4–related soymilk allergy
Author(s) -
Yoshida Tokiko,
Chinuki Yuko,
Matsuki Shingo,
Morita Eishin
Publication year - 2021
Publication title -
journal of cutaneous immunology and allergy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.127
H-Index - 1
ISSN - 2574-4593
DOI - 10.1002/cia2.12177
Subject(s) - basophil activation , allergy , food allergy , immunoglobulin e , pathogenesis , basophil , medicine , food science , immunology , chemistry , antibody
Soymilk allergy is caused by cross‐reaction of either birch Bet v 1–specific or alder Aln g 1–specific IgE to soybean Gly m 4, which belongs to pathogenesis‐related protein‐10 (PR‐10) family. Gly m 4–specific IgE test identifies soybean allergy patients with high sensitivity. In this case study, we found that CD203c expression–based basophil activation test (CD203c‐BAT) with soymilk protein became positive in the three cases of Gly m 4–related soymilk allergy at the concentrated of 1 μg/ml, but not in the control subjects. CD203c‐BAT may possibly be useful as a diagnostic tool to identify patients with soymilk allergy.