Figure 5
Analysis of the expression of stem cell related genes in putative CSCs from different cell lines. Detectable expression levels of the genes were found in all putative CSCs. The PCR reaction without template served as the negative control. The relative expression of target genes was normalized to the level in the normal lung stem cells. The X-axis shows the target genes and the Y-axis shows the fold change. The error bars represent the standard deviation within the triplicate experiments.