CD177 and myeloid leukemia: To investigate the capacity of Nb1 and Nb9 to inhibit neutrophil adhesion to endothelial cells, we used the human myeloid leukemia cell line PLB-985 and differentiated them 72 h into neutrophils by the addition of 1.25% DMSO, as described previously (Ashkenazi and Marks 2009; Seredenina, et al. 2015; Tucker, et al. 1987).