Figure 2

(A–D) Confocal micrographs showing the expression of epithelial membrane antigen CK8 in OSCC derived cell lines. ITOC-01, ITOC-02, ITOC-03 cell lines were probed with anti-mouse IgG-FITC secondary antibody, while Alexa Fluor 568 anti-mouse secondary antibody was used for ITOC-04 cell line.