Figure 4.

One hour of Colo205 cell rolling following 1 mM aspirin pretreatment. (A) Percentage of the viable population on the E-selectin and the combined TRAIL and E-selectin surfaces. (B) Comparison of kill rates following perfusion over the combined surfaces with and without aspirin pretreatment. Perfusion over the combined surface for 1 h with aspirin treatment kills a similar proportion of cells that were perfused over the combined surface for 2 h without aspirin treatment. **p < 0.01, *p < 0.05, n = 3. (C) Representative flow cytometry plots showing the results from the Annexin-V assay.