Figure 1.
Flow cytometric analysis of cell cycle using a cocktail of FITC labeled cytokeratins (CK) and propidium iodine (PI). Cell populations are gated according to their CK positivity. DNA index (DI) and cell cycle phases (G0/G1, S, G2M) are analyzed for both CK positive and CK negative cells (cytopathology department of ATTIKON university hospital).