Establishment of a sensitive radioimmunoassay for the detection of human IgE-binding factor (soluble CD23).


A monoclonal antibody (mAb) specific to low-affinity receptor for IgE (FceRII/CD23) was established by the fusion of spleen cells of BALB/c mice immunized with the FceRII+ human B lymphoblastoid cell line (RPMI 8866) with mouse myeloma P3U1. Four mAbs, 10/3 (IgG1), 11/4 (IgG1), 12/2 (IgG2b) and 15/6 (IgM), almost completely inhibited the IgE binding to… (More)


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