Representative dot plots (n = 8) of BM MNCs that migrated in a chemotaxis assay to media conditioned by normal human CD34⁺cells.

Upper panel: dot-plot of cells that migrated to serum-free medium alone. Lower panel: dot-plot of cells that migrated to serum-free medium conditioned by CD34⁺ cells. (A and E) Dot plot of BM MNCs. (B and F) Dot plot of cells from the lymphocyte gate. (C and G) Dot plot of cells from the monocyte gate. (D and H) Dot plot of cells from the granulocyte gate.