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miR-202-5p inhibits the migration and invasion of osteosarcoma cells by targeting ROCK1

Congda Li1, Deying Ma1, Jinhu Yang1

  • 1Department of Orthopedic, People's Hospital of Rizhao, Rizhao, Shandong 276800, P.R. China.

Oncology Letters
|July 3, 2018
PubMed

Insights

MicroRNA-202-5p is downregulated in osteosarcoma (OS) and inhibits cancer cell migration and invasion. It targets ROCK1, suggesting miR-202-5p as a potential therapeutic target for OS treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • MicroRNAs (miRNAs) play a crucial role in regulating cancer development and treatment.
  • Aberrant microRNA-202 expression is observed in various human cancers, including osteosarcoma (OS).

Purpose of the Study:

  • To investigate the role and mechanism of microRNA-202-5p (miR-202-5p) in the occurrence and progression of osteosarcoma.
  • To determine the relationship between miR-202-5p and Rho-associated coiled-coil containing protein kinase 1 (ROCK1) in OS.

Main Methods:

  • Quantitative real-time PCR (RT-qPCR) to assess miR-202-5p and ROCK1 expression in OS tissues and cell lines.
  • Transwell assays to evaluate the effects of miR-202-5p on OS cell migration and invasion.
  • Luciferase reporter assays and Western blot analysis to confirm the direct targeting of ROCK1 by miR-202-5p and its protein level regulation.

Main Results:

  • miR-202-5p expression was significantly downregulated in OS tissues and cell lines.
  • Overexpression of miR-202-5p suppressed the migration and invasion capabilities of OS cells.
  • miR-202-5p directly targets ROCK1, negatively regulating its expression. Upregulation of ROCK1 promoted OS progression and reversed the inhibitory effects of miR-202-5p.

Conclusions:

  • miR-202-5p inhibits osteosarcoma cell migration and invasion by directly targeting and downregulating ROCK1.
  • The miR-202-5p/ROCK1 axis represents a potential therapeutic target for osteosarcoma treatment.
Keywords:
ROCK1invasionmiR-202-5pmigrationosteosarcoma

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