MiR-199a-3p suppresses proliferation and invasion of prostate cancer cells by targeting Smad1

  • Qu F
  • Zheng J
  • Gan W
  • et al.
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Abstract

Objectives: This study was intended to analyze effects of miR-199a-3p and Smad1 on proliferation, migration and invasion of prostate cancer (PCa) cells. Results: MiR-199a-3p was significantly decreased in PCa tissues in comparison to that in adjacent normal tissues (P < 0.05). Over-expressed miR-199a-3p markedly suppressed proliferation and invasion of PCa cells (P < 0.05). MiR-199a-3p was negatively correlated with Smad1 expression, and overexpression of Smad1 could antagonize the effects of miR-199a-3p on PCa cells. Materials and methods: The PCa tissues and their adjacent normal tissues were collected from 54 PCa patients. Expressions of miR-199a-3p and Smad1 mRNA in tissues and cells were evaluated with real-time quantitative polymerase chain reaction (RT-qPCR), and immunohistochemistry assay was used to detect Smad1 protein expressions. The target relationship between miR-199a-3p and Smad1 was assessed by luciferase reporter assay. The PCa cell lines (i.e. PC-3 cells) were transfected with miR-199a-3p mimics and Smad1-cDNA. MTT and Transwell assays were applied to detect proliferative, migratory and invasive abilities of PCa cells. Conclusions: MiR-199a-3p suppressed proliferation and invasion of PCa cells by targeting Smad1.

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Qu, F., Zheng, J., Gan, W., Lian, H., He, H., Li, W., … Guo, H. (2017). MiR-199a-3p suppresses proliferation and invasion of prostate cancer cells by targeting Smad1. Oncotarget, 8(32). https://doi.org/10.18632/oncotarget.17191

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