Figure 1. Analysis of maternal anti-HPA-1a derived from −ICH (n=18) and +ICH (n=18) in an antigen capture assay.
HPA-1aa platelets (upper panel) or endothelial cells (bottom panel) were incubated with anti-HPA-1a sera and moabs against aIIbb3 (a), avb3 (c) and b3 (b, d). After cell lysis, the moab-(aIIbb3/avb3/b3)-anti-HPA-1a trimolecular complex was immobilized on microtiter wells coated with anti-mouse IgG. Binding of anti-HPA-1a antibodies to platelet-derived aIIbb3, aIIbb3 + avb3 and endothelial-derived avb3 was detected with enzyme labelled anti-human IgG. Statistical analysis was performed by Mann-Whitney U Test.