In Kaplan-Meier analyses, there were no significant differences between high expression and low expression groups of CD54 (p=0.610), Lgr5 (p=0.053), Sox2 (p=0.858), EpCAM (p=0.733) and CD133 (P=0.276). However, Oct4 high expression group had significantly worse prognosis than Oct4 low expression group (p=0.006), and we found that Oct4 was also an independent prognostic factor in Cox regression (p=0.034, HR=1.626, 95%CI [1.038-2.547]).