Fig. 11.
Effect of mAb to PECAM-1 on PMN transendothelial migration induced by iTCC.
Cells were incubated with iTCC (5 nM), TNFα (1.5 × 103U/mL), or IL-8 (10−8 M) either alone (░) or after exposure to mAb anti–PECAM-1 (10 μg/mL) (▪) for 20 minutes before the addition of PMNs to the upper chamber. Percentage of migrated PMNs was evaluated after an incubation of 30 minutes. Values are means ± SD of duplicate determinations of 3 separate experiments. *P < .05 versus response of HUVECs to the various stimuli in the absence of anti–PECAM-1.