Fig. 3

Primary culture of ectopic xenografts of 92.1(scale 50 µm). The red 92.1 cells (HBM45 positive cells) were colonized and expanded on the green choroidal plexus (upper left). Under the phase contrast microscope, the green cells with pseudopodia extension were the host cells, and the cells with many granules and dark color were 92.1 cells, among which the small round cells with abundant granules were spheroids under the white light microscope (lower left)