Inhibition of lactadherin-dependent phagocytosis of platelet-derived microvesicles. (A) THP-1–derived macrophages were incubated with BODIPY-labeled human platelet-derived microvesicles and lactadherin in the presence of C1C2 fragment (A) or abciximab (B). The extent of phagocytosis was measured as described in Figure 3. The results are the means and SDs of triplicate measurements.