Figure 1.
FAP expression in oral squamous cell carcinoma (OSCC) is associated with poor prognosis. (I) FAP expression examination in OSCC and control tissues (a) Negative FAP expression in oral cavity epithelium; (b, c) Negative expression of FAP in OSCC tissues; (d, e) Weakly positive expression of FAP in OSCC tissues; (f, g, and h) Positive and strong positive expression of FAP in OSCC tissues; (II) Immunofluorescent images of KB and Tca-8113 cells stained for FAP (green) and 4′,6-diamidino-2-phenylindole (DAPI; blue) (magnification, × 400); (III) Kaplan–Meier survival analysis of overall survival in all patients. The log-rank test was used to calculate P-values