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MicroRNA-1301 inhibits migration and invasion of osteosarcoma cells by targeting BCL9

Lei Wang1, Kejun Hu1, Yu Chao1

  • 1Department of Orthopaedics, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710077, China.

Gene
|September 3, 2018
PubMed

Insights

MicroRNA-1301 (miR-1301) is down-regulated in osteosarcoma (OS) and inhibits tumor progression by targeting BCL9. Lower miR-1301 levels correlate with poor patient survival, suggesting its potential as a therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • MicroRNAs (miRNAs) are crucial regulators in cancer development.
  • Previous research indicates abnormal miR-1301 expression in several cancers, but its role in osteosarcoma (OS) is unclear.

Purpose of the Study:

  • To investigate the function and mechanism of miR-1301 in osteosarcoma.
  • To determine if miR-1301 can serve as a prognostic marker for OS patients.

Main Methods:

  • Compared miR-1301 expression in OS tissues and cell lines versus normal controls.
  • Overexpressed miR-1301 in OS cells to assess effects on proliferation, migration, and invasion.
  • Identified and validated BCL9 as a direct target of miR-1301 using 3'-UTR binding assays.
  • Correlated miR-1301 and BCL9 expression in clinical OS samples.

Main Results:

  • miR-1301 expression was significantly lower in OS tissues and cell lines.
  • Down-regulated miR-1301 correlated with advanced clinical features and reduced patient survival.
  • Overexpression of miR-1301 suppressed OS cell proliferation, migration, and invasion.
  • BCL9 was identified as a direct target of miR-1301, with inverse expression correlation in OS.
  • BCL9 overexpression promoted OS progression, and its restoration partially reversed miR-1301's inhibitory effects.

Conclusions:

  • miR-1301 inhibits osteosarcoma cell proliferation, migration, and invasion by targeting BCL9.
  • miR-1301 functions as a tumor suppressor in OS.
  • miR-1301 holds potential as a novel therapeutic target and prognostic biomarker for osteosarcoma.
Keywords:
BCL9InvasionMigrationOsteosarcomamicroRNA-1301

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