AP expression in peripheral blood cells of recipients of secondary transplants.

Eight weeks after transplantation of BM cells from primary recipient no. 682, peripheral blood cells from secondary recipients were stained with an FITC-conjugated anti-AP antibody and the indicated PE-conjugated lineage-specific antibodies. Examples of flow cytometry data are shown for different lineages, with the percentage of each cell type that expressed vector-encoded AP indicated. Platelets were identified according to their FSC and SSC characteristics instead of by using a specific antibody. Controls were blood samples from untransplanted mice.