Fig. 4.

Transendothelial migration of stimulated leucocytes across non- stimulated human umbilical vein endothelial cells (HUVEC). Leucocytes were treated separately with stimuli (100 ng/1.5 × 106 cells/ml) for 2 h, were then washed and added to non-stimulated monolayer. The data represent mean ± s.e.m. of three independent experiments. *P < 0.001 versus control migration; **P < 0.05 versus LPS-S-stimulated leucocytes.