Effect of blocking antibodies on PS-exposing RBC adherence to EC monolayers.

Confluent EC monolayers were washed and layered in a static assay with PS-exposing RBC suspensions in the presence of 1 of the following: polyclonal antibodies to CD59 or TSP, monoclonal antibodies to α_v (L230), or a nonblocking monoclonal antibody to β₃ (AP3), or in buffer alone (control). Results are reported as percentage of the control adherence, which is set to 100%. Error bars represent standard error of the means calculated from the absolute values from 4 experiments and normalized relative to the adherence of the buffer-treated control. *Indicates significant differences from the control by the Student t test.