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miRNA Expression Analyses in Prostate Cancer Clinical Tissues
11:29

miRNA Expression Analyses in Prostate Cancer Clinical Tissues

Published on: September 8, 2015

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MicroRNA miR-125a-3p modulates molecular pathway of motility and migration in prostate cancer cells

Lihi Ninio-Many1,2, Hadas Grossman1, Mattan Levi1

  • 1Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Israel.

Oncoscience
|January 17, 2015
PubMed

Insights

MicroRNA-125a-3p suppresses prostate cancer cell migration and invasion by targeting Fyn kinase. This microRNA may serve as a therapeutic target for reducing prostate cancer progression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Fyn kinase plays a role in prostate cancer progression.
  • MicroRNAs regulate gene expression and are involved in cancer development.

Purpose of the Study:

  • To investigate the role of miR-125a-3p in prostate cancer cell motility and migration.
  • To determine if miR-125a-3p regulates Fyn kinase expression and downstream signaling pathways.

Main Methods:

  • Prostate cancer PC3 cells were transfected with miR-125a-3p mimics or control vectors.
  • Cell migration, apoptosis, and live cell imaging were assessed.
  • Expression and activity of Fyn, FAK, and paxillin were analyzed.
  • Correlation with Gleason score in patient tissues was examined.

Main Results:

  • Overexpression of miR-125a-3p reduced PC3 cell migration and increased apoptosis.
  • Live cell imaging showed decreased cell track speed, length, and impaired phenotype.
  • miR-125a-3p overexpression led to reduced activity of Fyn, FAK, and paxillin.
  • Actin rearrangement and cell protrusion formation were impaired.
  • An inverse correlation between miR-125a-3p and Gleason score was observed in patient tissues.

Conclusions:

  • miR-125a-3p inhibits prostate cancer cell migration and invasion, potentially by regulating Fyn kinase.
  • miR-125a-3p may serve as a prognostic biomarker and therapeutic target for prostate cancer.
Keywords:
EMTFynactin cytoskeletonlive imagingmiR-125a-3pmigrationprostate cancer

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