Figure 3

Altered morphology during differentiation of CD34⁺cells in the presence of PT45-CM. Circulating CD34⁺ cells were cultured for 19 days in the presence of GM-CSF, IL-3 and SCF, either in the absence or in the presence of PT45-CM. Shown are representative examples of cells cultured in GM-CSF, IL-3 and SCF alone (A); as panel A, but including PT45-CM (B).