expression profiles for the cells in
each of the colony types are shown in Fig. 3. For three types of
colonies, the hematopoietic marker gene expression profiles were
compared with the morphological characters observed in the CFU
assay; neutrophil markers (NE, G-CSFR and MPO), eosinophil marker
(Epx), monocyte/macrophage and neutrophil marker (CD11b),
monocyte/macrophage markers (M-CSFR, CD14 and MSR) were
identified, but the erythrocyte markers (b-globin and EPOR) and
B-cell markers (Pax5 and EBF) were not observed. The erythrocyte
and megakaryocyte marker (GATA1) and megakaryocyte marker
(CD41) were detected in Type 1 and Type 2 colonies, respectively