China
Background Bladder cancer is the second most common urological malignancy worldwide. CIP2A is a newly identified inhibitor of PP2A. Recent studies have highlighted a potential role for CIP2A in promoting the proliferation of several cancer cells. However, the role of CIP2A in bladder cancer still remains unclear.
Methods The expression of CIP2A was detected by quantitative real-time polymerase chain reaction and IHC in bladder cancer tissues and bladder cancer cell lines. In addition, silencing of CIP2A with siRNA was performed in T24 cells, and the impact on proliferation, and apoptosis of T24 cells was analyzed.
Results Our results found that CIP2A expression levels were higher in bladder cancer tissues and cell lines. Furthermore, CIP2A siRNA significantly reduced the proliferation rate of T24 cells, induced a significant population of early and late apoptosis, and could reverse EMT in T24 cells, indicates that CIP2A expression is increased in bladder cancer and implies a role of the protein in bladder cancer progression.
Conclusions These results suggest that CIP2A is involved in tumor progression, and thus CIP2A could represent selective targets for the targeted treatments of bladder cancer.
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