長鏈非編碼RNA PTENP1在膀胱癌發(fā)生發(fā)展中的分子機制
[Abstract]:Objective to investigate the molecular mechanism of long chain non-coding RNA PTENP1 in the carcinogenesis and development of bladder cancer. Methods the basic expression of PTENP1 and PTENN miR-17 in bladder cancer was detected by reverse transcriptase real time quantitative PCR (q RT-PCR. The changes of PTEN expression in bladder cancer cell lines T24 and 5637 after overexpression of PTENP1 were detected by Western blot. Luciferase report test was used to verify the targeting effect of miR-17 on PTENP1 and PTEN. Finally, miR-17 and PTENP1 were co-expressed in T24 and 5637 bladder cancer cell lines, and the stable co-expression cell lines were established to carry out proliferation and migration experiments to explore the molecular mechanism of long chain non-coding RNA PTENP1 in the development of bladder cancer. Results there was a high expression trend of miR-17 in bladder cancer and a general low expression trend of PTENP1 in bladder cancer (P0.05). At the same time, the basic expression of miR-17 and PTENP1 was negatively correlated with the basic expression of PTEN. WB assay showed that overexpression of PTENP1 in bladder cancer cell lines T24 and 5637 could increase the expression of PTEN at translation level. Luciferase reports have demonstrated that miR-17 can target both PTENP1 and PTEN in bladder cancer, and that miR-17 can promote cancer in bladder cancer. In bladder cancer cells, we found that miR-17 can partially restore the anti-tumor function of PTENP1. Conclusion the molecular mechanism of suppressor function of long chain noncoding RNA PTENP1 in bladder cancer may be that PTENP1 combined with miR-17 is a competitive endogenous RNA competition, thus reducing the inhibition of miR-17 on the expression of the tumor suppressor gene PTEN.
【作者單位】: 華中科技大學(xué)同濟醫(yī)學(xué)院附屬同濟醫(yī)院泌尿外科;澳門理工學(xué)院高等衛(wèi)生學(xué)校;
【基金】:澳門理工學(xué)院科研項目(RP/ESS-03/2015)
【分類號】:R737.14
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