Figure 6: Immunocytochemical assay of Oct-4, Suz-12 and Cripto-1 in LNCaP and PC3 cells. A, B, and C: staining for Oct-4, Suz-12, and Cripto-1, respectively, in LNCaP cells; D, E, and F: staining for Oct-4, Suz-12, and Cripto-1, respectively, in PC3 cells For the assay either cells grown directly on plastic slides (2D) or cytospins originated from cell spheroids (3D) were used. For methodological details see text.