Fig. 9. Endocytosis pathways of FCNPs in different cell lines. Confocal images of (A) A549 cells and (B) BY-2 cells treated with specific endocytosis inhibitors. Intracellular fluorescent signals of (C) A549 cells and (D) BY-2 cells treated in the presence of different inhibitors were quantified using the ImageJ software (20 cells analyzed). Ctrl = control with FCNPs and without inhibitors, Chlor = chlorpromazine, mβCD = methyl-β-cyclodextrin, CytD = cytochalasin D, Nocod = nocodazole, Wort = wortmannin, and Genis = genistein. *p < 0.05; **p < 0.01; ***p < 0.005 (compared to control).