Additional file 2.
Figure S2. Expression of candidate CSC markers in hepatoma sphere-forming cells. Confocal immunofluorescent staining showed that CD44 expression was enriched obviously in HepG2 and MHCC97H sphere-forming cells compared with their parental cells. Nuclei were stained with DAPI (400×).
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Cao et al. BMC Gastroenterology 2011 11:71 doi:10.1186/1471-230X-11-71