Phenotype of the ICAM-1/ICAM-2 double-deficient bEndI1/2.1. The phenotype of unstimulated versus TNF-α-stimulated (16 hours) bEndI1/2.1 as determined by FACS analysis is shown. Endothelial cells are scatter gated on live cells; overlays compare surface expression of unstimulated (thin lines) versus stimulated (thick lines) bEndI1/2.1.