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microRNA-195 suppresses osteosarcoma cell invasion and migration in vitro by targeting FASN

Jian Hua Mao1, Rong Ping Zhou, Ai Fen Peng

  • 1Department of Orthopedics, First Affiliated Hospital of Nanchang University;

Oncology Letters
|November 20, 2012
PubMed

Insights

microRNAs, specifically miR-195, suppress osteosarcoma cell invasion and migration. This microRNA targets fatty acid synthase (FASN), suggesting miR-195 as a potential therapeutic for osteosarcoma.

Area of Science:

  • Molecular Biology
  • Oncology
  • Biochemistry

Background:

  • MicroRNAs regulate diverse cancer processes.
  • miR-195 is a known tumor suppressor, but its role in osteosarcoma is undefined.

Purpose of the Study:

  • To investigate the function of miR-195 in osteosarcoma.
  • To determine if miR-195 affects osteosarcoma cell migration and invasion.
  • To identify the molecular targets of miR-195 in osteosarcoma.

Main Methods:

  • Upregulation of miR-195 in osteosarcoma cells via transfection.
  • Measurement of fatty acid synthase (FASN) mRNA and protein levels using RT-PCR and Western blotting.
  • Assessment of cell migration and invasion using wound healing and Transwell assays.
  • Luciferase activity assay to confirm FASN as a direct target of miR-195.

Main Results:

  • miR-195 upregulation significantly reduced osteosarcoma cell (U2OS) invasion and migration.
  • Fatty acid synthase (FASN) was identified as a direct target of miR-195.
  • miR-195 expression was found to be upregulated in osteosarcoma cells.

Conclusions:

  • miR-195 inhibits osteosarcoma cell migration and invasion by targeting FASN.
  • Exogenous miR-195 holds potential therapeutic value for osteosarcoma treatment.

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