Fig. 7.
Effects of protease inhibitors on the binding and degradation of 125I-rhTPO by intact platelets. Human PRP was incubated with 125 I-rhTPO with or without cold rhTPO, calpain inhibitor I [Cal (−)], or iodoacetic acid (Iodo) for 60 minutes at 37°C. Binding and degradation of 125I-rhTPO was determined (n = 3 per experiment) as previously described. *Indicates significantly less (P < .05) than total binding (TB), as analyzed by ANOVA followed by a Tukey-Kramer test.