CD200Fc reduced dendritic cell migration and ingestion of early apoptotic cells. (A) Quantification of the percentages of dendritic cells (DCs) that ingested target cells by flow cytometry. PKH26/PKH67 double-positive cells indicated DCs that ingested target cells. (B) Percentage of DCs that migrated by transwell experiment (n = 5). PI, propidium iodide; RANTES, regulated on activation, normal T-cell expressed and secreted (OK).