Flow cytometric analysis of BM or peripheral blood cells of recipients of CFSE-labeled CD18

null cells 24 hours after their infusion. Solid profile: CFSE fluorescent cells. (A) Input donor CFSE-labeled BM cells. (B) Recovery of CFSE⁺/CD18 null cells in BM without (left) and with (right) anti-α₄. (C) Circulating CFSE⁺/CD18 null cells in peripheral blood without (left) and with (right) anti-α₄. (Pooled samples from femurs or the blood of 5 mice were used for FACS analysis.)