Fig. 6

Effects of Ubqln4 in GC cells are mediated by p21. MKN45 cells were infected with Ubqln4 lentivirus alone or together with p21-sh2, p21-sh5, or GFP-sh lentivirus. Cells infected with empty vector lentivirus served as controls. Cells were screened in 2 μg/ml puromycin for 5 days. a MTT assay, b colony-formation assays, and c SA-β-Gal staining assays were conducted in the indicated cell lines as described in Figs. 2 and 3. Student’s t-test, **P < 0.01, ***P < 0.001