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Updated: Oct 4, 2025

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miR-1290 inhibits chordoma cell proliferation and invasion by targeting Robo1

Bin Wang1,2, Kai Zhang1, Hao Chen1

  • 1Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, China.

Translational Cancer Research
|February 4, 2022
PubMed
Abstract

Insights

MicroRNA 1290 (miR-1290) suppresses chordoma cell growth and spread. This microRNA (miRNA) inhibits chordoma progression by targeting and downregulating the Robo1 gene.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gene Regulation

Background:

  • Chordoma is an aggressive bone tumor with high recurrence rates.
  • MicroRNAs (miRNAs) are implicated in chordoma development.
  • Previous studies linked miR-1290 to chordoma invasion and prognosis, but mechanisms were unclear.

Purpose of the Study:

  • To investigate the functional role of miR-1290 in chordoma biological behaviors.
  • To elucidate the underlying molecular mechanisms of miR-1290 in chordoma.

Main Methods:

  • Analysis of miR-1290 and Robo1 expression in chordoma tissues and fetal specimens.
  • Bioinformatic analysis and luciferase reporter assays to identify miR-1290 targets.
  • In vitro assays (clone formation, Transwell) to assess effects on cell proliferation and invasion.
  • Immunohistochemistry (IHC) to validate Robo1 expression in chordoma tissues.

Main Results:

  • Overexpression of miR-1290 significantly inhibited chordoma cell proliferation and invasion in vitro.
  • Robo1 was identified as a direct target of miR-1290.
  • Robo1 expression was upregulated in chordoma tissues and negatively correlated with miR-1290 levels.
  • miR-1290 directly suppressed Robo1 expression in chordoma cells.

Conclusions:

  • miR-1290 acts as a tumor suppressor in chordoma.
  • miR-1290 inhibits chordoma cell proliferation and invasion by negatively regulating the Robo1 gene.
Keywords:
ChordomaRobo1cell invasionmiR-1290proliferation

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