Table 1.

Effect of monoclonal antibodies on shear-induced platelet adhesion to human collagen type I studied in a parallel-plate flow chamber

Anti-GPIb mAbSurface coverage (% of control)
6B4 4.0  ±  1.2 
24G10 6.4  ±  2.1  
12G1 10.4  ±  4.3 
12E4 8.1  ±  5.1  
27A10 10.4  ±  3.1 
26D1 90  ±  3.5 
Anti-GPIb mAbSurface coverage (% of control)
6B4 4.0  ±  1.2 
24G10 6.4  ±  2.1  
12G1 10.4  ±  4.3 
12E4 8.1  ±  5.1  
27A10 10.4  ±  3.1 
26D1 90  ±  3.5 

At a concentration of 5 μg/mL, all mAbs inhibited shear-induced adhesion, with the exception of the control mAb 26D1. Results are expressed as percentage maximal platelet adhesion (surface coverage) obtained in the absence of mAb (control 32.5% ± 5.2%, set as 100% surface coverage). Mean ± SE, n = 3.

GPIb indicates glycoprotein Ib; mAb, monoclonal antibody.