Effect of AC-PACs on adherence of C. albicans to oral epithelial cells. Panel A: FITC-labeled C. albicans adhered to epithelial cells were quantified by measuring fluorescence in a microplate reader. Assays were done in triplicate and the means ± SD from three independent experiments were calculated. A value of 100% was assigned to C. albicans adhered to epithelial cells not treated with AC-PACs. *, significantly lower than the value for the untreated control (P < 0.05). Panels B to E: Image processing was performed using fluorescence microscope. Images of C. albicans adhered to untreated or AC-PACs-treated epithelial cells in fluorescence mode (B and C, respectively) and in phase-contrast mode (D and E, respectively).