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miR-514a-3p functions as a tumor suppressor in renal cell carcinoma

Lu Jin1,2,3, Yifan Li1,2,3, Zeng Zhang1,2,3

  • 1Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.

Oncology Letters
|November 9, 2017
PubMed

Insights

MicroRNA (miRNA) miR-514a-3p is downregulated in kidney cancer (RCC). Restoring miR-514a-3p levels inhibits RCC cell growth and promotes cell death, suggesting its potential as a tumor suppressor.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Renal cell carcinoma (RCC) is the most common kidney cancer with a poor prognosis for metastatic disease.
  • MicroRNAs (miRNAs) are key regulators of gene expression, acting as either oncogenes or tumor suppressors.
  • The specific role of miR-514a-3p in RCC pathogenesis is not well understood.

Purpose of the Study:

  • To investigate the expression levels of miR-514a-3p in renal cell carcinoma (RCC) tissues.
  • To elucidate the functional role of miR-514a-3p in the biological behavior of RCC cells.

Main Methods:

  • Quantitative polymerase chain reaction (qPCR) was used to measure miR-514a-3p expression in 32 paired RCC and adjacent normal tissues.
  • In vitro assays including MTT, CCK-8, cell scratch, Transwell, Hoechst 33342 staining, and flow cytometry were employed to assess cell proliferation, migration, invasion, and apoptosis.
  • miR-514a-3p mimics were transfected into RCC cell lines (786-O and ACHN) to evaluate its functional effects.

Main Results:

  • miR-514a-3p was significantly downregulated in RCC tissues compared to normal adjacent tissues.
  • Overexpression of miR-514a-3p in RCC cells suppressed cell proliferation, migration, and invasion.
  • Upregulation of miR-514a-3p induced apoptosis in RCC cells.

Conclusions:

  • miR-514a-3p functions as a tumor suppressor in renal cell carcinoma.
  • The findings suggest miR-514a-3p holds potential as a diagnostic biomarker for RCC.
  • Further research is warranted to explore the therapeutic potential and underlying pathways of miR-514a-3p in RCC.
Keywords:
miR-514a-3pmicroRNArenal cell carcinomatumor suppressor

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