Figure 8.

These data illustrate the leukocyte rolling velocity profiles in sensitized wild-type animals under control conditions and sensitized wildtype animals, P-selectin–deficient, and E-selectin–deficient animals at 4 h after antigen challenge. The velocity of each leukocyte (V_WBC) was expressed relative to centerline V_rbc. The numbers in parentheses indicate the average leukocyte rolling velocity in each series of experiments. Leukocyte rolling velocity did not differ between any of the experimental groups.