摘要：

Methods and assay kits are provided for assaying for a measurable biological response inducible by activation of FcRI-expressing cells by immune complexes comprising shed antigen and anti-shed antigen antibody of an IgG subtype capable of binding FcRI. An assay kit comprises shed antigen, anti-shed antigen antibody of an IgG subtype capable of binding FcRI, and FcRI-expressing cells.

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