Macrophage migration inhibitory factor as a potential prognostic factor in gastric cancer

Figure 9 Proliferating cell nuclear antigen protein expression in AGS cells after 72 h of RNA interference with small-interfering RNA. A: Western blot analysis showed that PCNA protein expression was substantially reduced compared with that of the α-tubulin control (P < 0.001); B: Corresponding gray values. Results are representative of three independent experiments for each AGS and MKN-45 cells. NC: Negative control; PCNA: Proliferating cell nuclear antigen.