Abstract:We generated a panel of 10 murine monoclonal antibodies (MAbs) that recognize human complement fragment C5a. These MAbs were characterized for their ability to immunoprecipitate 125I-labeled C5a, bind C5a in solid-phase enzyme immunoassay, and block 125I-labeled C5a binding to polymorphonuclear leukocytes. Four of these MAbs had affinity constants for C5a in the 1 X 10(9) to 3 X 10(9) M-1 range. These MAbs blocked C5a-induced neutrophil polarization and chemiluminescence. They blocked the ability of passively … Show more
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