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题目:: LncRNA PVT1 regulates prostate cancer cell growth by inducing the methylation of miR-146a.
作者:: Liu(Hong-Tao),Fang(Lei),Cheng(Yu-Xia),Sun(Qing)
状态:: 发布时间2016-10-29 , 更新时间 2016-12-07
期刊:: Cancer Med
摘要:: Prostate cancer is the third most common causes of death from cancer in men. Our previous study demonstrated that lncRNA PVT1 was overexpressed and played an oncogenic role in the progression of prostate cancer. However, the molecular mechanism of modulating the prostate cancer tumorigenesis was still unknown. In this study, we aim to investigate the interaction between PVT1 and miR-146a in prostate cancer and reveal the potential mechanism in prostate cancer carcinogenesis. The expression level of miR-146a was assessed by quantitative RT-PCR. The correlation analysis and methylation status analysis was made to confirm the interaction between PVT1 and miR-146a. Biological function analysis was performed through gain-of-function and loss-of-function strategies. Our results showed that miR-146a was downregulated and negatively correlated with PVT1 level in prostate cancer. PVT1 mediated miR-146a expression by inducing the methylation of CpG Island in its promoter. miR-146a overexpression eliminated the effects of PVT1 knockdown on prostate cancer cells. PVT1 regulated prostate cancer cell viability and apoptosis depending on miR-146a. Our study suggested a regulatory relationship between lncRNA PVT1 and miR-146a during the process of the prostate cancer tumorigenesis. PVT1 regulated prostate cancer cell viability and apoptosis depending on miR-146a. It would contribute to the diagnosis, treatment and prognosis of prostate cancer.
语言:: eng
DOI:: 10.1002/cam4.900

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