Comparison of c-Mpl expression on CD13⁺cells generated by JCML or normal CD34⁺CD38^high cells in the presence of SCF + GM-CSF. The cells generated by JCML or normal CD34⁺CD38^high cells on day 12 were stained with anti–c-Mpl MoAb (—) or mouse IgG1, (---), and then stained with FITC-conjugated GAM. After treatment with mouse serum, the cells were stained with PE-conjugated anti-CD13 MoAb. Surface-marker expression on the cells in R1 region was analyzed.