Rnf2 knockdown reduces cell viability and promotes cell cycle arrest in gastric cancer cells

Rnf2 is a fundamental component of the polycomb repressive complex land acts as the really interesting new gene finger E3 ligase, which is responsible for histone 2A modilication. Previous studies have shown that the ring linger protein 2 (Rnf2) is overcxpressed in various types of tumor and has a close association with tumor development. However, few studies have been carried out into the expression and biological function of Rnf2 in gastric cancer cells. The present study measured the expression of Rnf2 in gastric cancer cells and normal epithelial gastric cells. The results demonstrate that Rnf2 is upregulated in gastric cancer cells. In addition, the knockdown of Rnf2 inhibited the cell viability and induced increased 61 phase followed by a substantial reduction of the 62/M phase. The expression levels of p21 and p27 were also significantly elevated by the knockdown of Rnf2. These results provide evidence of the oncogenic function of Rnf2 in gastric cancer, possibly through an inhibition of cellular proliferation and a delay of the G2/M phase. Therefore, Rnf2 may he a novel target for the prognosis and therapy of gastric cancer.