Antibody blocking experiments for CD34⁺ ABM cells on P- and L- selectin.

Cells were preincubated with mAb indicated before being perfused over P- or L-selectin chimera surface. The CD34 mAb used was QBEND/10.32,36 The PSGL-1 mAb used was PL-1.31,32 (A) Rolling flux on P-selectin. (B) Rolling velocity on P-selectin. (C) Rolling flux on L-selectin. (D) Rolling velocity on L-selectin. Each data point represents results from a single experiment.