Figure 3.
ST6GAL1 promotes oncogenic activities in both E6-positive and E6-negative cervical cancer cells. (A) C33A and C33A-E6 (E6 stable expressing) cells were transiently transfected with pcDNA3.1-ST6GAL1 overexpressing plasmid (ST6GAL1) or empty vector (EV). Then, protein expression of E6 and ST6GAL1 were detected by Western blot. (B) Proliferation of indicated cells were detected by CCK-8 assay. (C) The clones of indicated cells were visualized by crystal violet staining. (D) Statistical analysis of colony numbers in C33A and C33A-E6 cells. (E, F) Apoptosis of indicated cells were detected by flow cytometry, and then, apoptotic rates were statistically analyzed. (G) Western blot was used to detect the expression of apoptosis-related proteins. (H, I) Migrative abilities of indicated cells were detected by wound-healing assay and statistically analyzed. (J, K) Invasive abilities of indicated cells were detected by Transwell assay and statistically analyzed. Data were presented as mean ± SD from the three independent replicates. **p < 0.01; ***p < 0.001.
