To confirm this hypothesis, we examined the adhesion of human monocytic leukemia cell line (THP-1) cells to human umbilical vein endothelial cells (HUVECs) and the association of this with the expression of adhesion molecules, such as ICAM1, VCAM1, E-selectin, and P-selectin, on HUVECs treated with SlaA. This evidence concerns the gene VCAM1 and monocytic leukemia.