Serum starvation-induced apoptotic GFP-hECs or hECs were incubated with PMA-induced THP-1 macrophages for 6 and 24 hours. A) CD80, CD163 and CD206 expression on apoptotic GFP-hECs treated THP-1 macrophages by flow cytometry analysis. Cells were pooled from three wells of a 6 well plate at each time point. The number shown in the upper right on each scatter plot is the percentage of the target on F4/80 positive macrophages. Gating strategies are shown in Appendix B. B). mRNA expression of TNF-α, IL-1β, IL-6, IL-10, iNOS, TGF- β1, VEGF-A, and IGF-1 in apoptotic hECs treated THP-1 cells. The level of relative expression for each target at zero hour without treatment was used as the baseline control. N=3 triplicate wells at each time point. Representative results from two experiments are shown. Two-way ANOVA followed by Bonferroni’s post hoc test was used for statistical analysis. *p<0.05, **p<0.01