Figure 4.

Correlation between SOX2, Oct4, KLF4, c-Myc and brachyury expression and survival in OSCC patients. (A) Overall, (B) disease-specific and (C) disease-free survival of OSCC patients with high or low expression intensity of (a) SOX2, (b) Oct4, (c) KLF4, (d) c-Myc and (e) brachyury. P-values and χ² statistics are shown in plots with statistically significant differences. OSCC, oral squamous cell carcinoma; SOX2, sex determining region Y-box 2; Oct4, octamer-binding transcription factor 4; c-Myc, avian myelocytomatosis viral oncogene homolog; KLF4, Krüppel-like factor 4.