Fig. 7

CD24 cells are highly metastatic cells with enriched stem/progenitor properties in vivo. a Lung metastasis after 4 weeks of inoculation of 10,000 cells into the tail vein of wild-type (WT) mice (upper panel); average macrometastases per lung in each group (lower panel). The Mann-Whitney test was performed to compare the groups (*p <0.05). b Cell number from the indicated population was injected into the fourth mammary fat pad of WT mice, and mammary tumor formation was monitored for a period of 5 months