File:Survival-advantages-conferred-to-colon-cancer-cells-by-E-selectin-induced-activation-of-the-PI3K-1471-2407-11-285-S2.ogv

English: An anti-DR3 blocking antibody impairs the adhesion of colon cancer cells to E-selectin-expressing endothelial cells in a laminar flow chamber. HUVECs were trypsinized and grown for 24 hrs on gelatin-coated slides. These endothelial cells were treated with 20 ng/ml IL-1β for 4 h to induce the expression of E-selectin. The endothelial cell cultures were then placed in a laminar flow chamber under a shear stress of 1 dyne/cm2. Live HT29 cells (2 × 106 per assay) stained with Calcein AM were treated with an anti-DR3 blocking antibody (B65) for 30 min prior to being introduced in the medium circulating over endothelial cells. Videos were taken directly using a camera mounted on a TE2000 fluorescence microscope at ×20 magnification to follow the adhesion of HT-29 cells to HUVECs.