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miR-106a-5p Functions as a Tumor Suppressor by Targeting VEGFA in Renal Cell Carcinoma

Jun Ma1, Wenguang Wang1, Baihetiya Azhati1

  • 1Department of Urology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China.

Disease Markers
|November 23, 2020
PubMed

Insights

MicroRNA-106a-5p (miR-106a-5p) is significantly reduced in kidney cancer, impacting survival. Restoring miR-106a-5p levels may offer a new therapeutic strategy for clear cell renal cell carcinoma (ccRCC).

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • MicroRNAs (miRNAs) are crucial regulators of gene expression implicated in various cancers.
  • The specific role of microRNA-106a-5p (miR-106a-5p) in renal cell carcinoma (RCC) remains largely unexplored.
  • Understanding miRNA roles is vital for developing targeted cancer therapies.

Purpose of the Study:

  • To investigate the expression and function of miR-106a-5p in clear cell renal cell carcinoma (ccRCC).
  • To identify the molecular targets of miR-106a-5p within ccRCC.
  • To evaluate the therapeutic potential of miR-106a-5p in ccRCC.

Main Methods:

  • Quantitative real-time PCR to measure miR-106a-5p expression in ccRCC tissues and cell lines.
  • Bioinformatic analysis and luciferase reporter assays to identify and validate miR-106a-5p targets.
  • In vitro assays to assess the impact of miR-106a-5p on ccRCC cell proliferation, colony formation, and viability.

Main Results:

  • miR-106a-5p expression was significantly downregulated in ccRCC tissues and cell lines compared to normal controls.
  • Lower miR-106a-5p levels correlated with advanced tumor stage and poorer patient survival.
  • VEGFA was identified as a direct target of miR-106a-5p, with its expression reduced upon miR-106a-5p upregulation.
  • Overexpression of miR-106a-5p inhibited ccRCC cell growth, colony formation, and induced cell death.

Conclusions:

  • miR-106a-5p acts as a tumor suppressor in ccRCC by directly targeting VEGFA.
  • Reduced miR-106a-5p expression is a potential biomarker for poor prognosis in ccRCC.
  • miR-106a-5p represents a promising candidate for novel therapeutic strategies against ccRCC.

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