Analysis of cells found in mixed colonies formed
on C166 cells. Cells were removed from mixed colonies grown on C166
feeder layers and evaluated for cell differentiation by Wright–Giemsa
staining of cytospin preparations. Representative examples of various
cell types are indicated by arrows: 1, macrophage; 2, granulocyte; 3,
blast cell; 4, megakaryocyte; and 5, monocyte. (×160.)