CD24 and cancer: Indeed, the WT/PyMT tumors contained a higher percentage of CD24+CD29+ cells compared to the 211F/PyMT tumors (Figure 2A), suggesting that the WT/PyMT tumors contained more stem cell-like cells than the 211F/PyMT tumors and predicting higher invasiveness of the WT/PyMT-derived cancer cells than of the 211F/PyMT cells.