Figure 2 shows the effect of ligation of vβ3 (1 μg/mL) and an isotype-matched control CD21 (10 μg/mL) on uptake of apoptotic neutrophils by BMDM. The macrophages were incubated for 30 minutes at various times before the start of the interaction assay. Mean (percentage of uptake) ± SE, n = 8. * P < .01.