CD44+CD24- stem-like tumor cells show greater tumorigenicity compared with CD44+CD24+ population of WT MMC.

<p>WT MMC tumor cells were sorted into CD44+CD24- and CD44+CD24- populations and on day twenty one, 50,000 of the sorted cells were injected into mice (n=2) and tumor growth was observed. Sorted tumor cells were also cultured for 10 days (in triplicates) and counted using trypan blue exclusion. Fold of expansions are shown (B).