Costimulation of platelets with rhTPO, CAMT versus healthy control.

Platelets of patient CAMT-7 (A) and of a healthy control donor (B) were stimulated with ADP (5 μM) after preincubation with or without rhTPO (50 ng/mL). Flow cytometric analysis of platelet activation was performed using a monoclonal antibody against CD62P. CD62P expression of unstimulated platelets is shown in each histogram.