Expression of SnoN protein in transfected SW1990 cells. A Western blotting was used to detect the cyclin SnoN protein expression level in each group. Representative results obtained from three repeated experiments are presented in the figure. B β-actin was used as an internal reference to analyze the relative protein expression level of cyclin SnoN, n = 3. #P >0.05 and *P < 0.05, compared with the blank control group.