P-selectin, VCAM-1, and 4-integrins together mediate eosinophil accumulation on IL-4–stimulated HUVECs. These experiments were performed exactly as described in Fig 6. Accumulation of eosinophils was determined at (A) 2 dyn/cm² and (B) 1 dyn/cm², as described in Materials and methods. The data represent the mean and SEM of at least three independent experiments. *P ≤ .05; **P ≤ .0001; †P ≤ .001 with respect to P-selectin MoAb alone.