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. 2016 Jun 17;7:171. doi: 10.3389/fphar.2016.00171

Figure 1.

Figure 1

(A) Schematic illustration of IgE-mediated cross-linking. Upon binding of the hapten-carrier complex to the drug-specific IgE captured on high affinity IgE receptor FcεRI, basophils react by degranulation and mediator release. CD63 is transferred from the vesicle to the plasma membrane and CD203c is upregulated, thus both serve as activation markers. (B) Flow cytometry dot plots of typical activation patterns for CD63 and CD203c; CCR3, basophil identification marker; PE, phycoerthrin label; FITC, fluorescein label; PE-Dy647, tandem label.