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Knockdown of Aurora-B inhibits osteosarcoma cell invasion and migration via modulating PI3K/Akt/NF-κB signaling

Liang Bo Zhu1, Jian Jiang2, Xiao Ping Zhu3

  • 1Department of Orthopedics, The First Affiliated Hospital of Nanchang University Jiangxi, China.

International Journal of Clinical and Experimental Pathology
|August 15, 2014
PubMed

Insights

Aurora-B inhibition significantly reduces osteosarcoma (OS) cell migration and invasion by suppressing the PI3K/Akt/NF-κB pathway. This suggests Aurora-B blockers could be a novel therapeutic strategy for managing OS metastasis.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Metastasis is a critical factor in malignant tumor progression.
  • Aurora-B kinase has been implicated in the metastasis of various cancers.
  • The role of Aurora-B in osteosarcoma (OS) metastasis requires further elucidation.

Purpose of the Study:

  • To investigate the inhibitory effect of Aurora-B on OS cell invasion and migration.
  • To explore the impact of Aurora-B on the PI3K/Akt/NF-κB signaling pathway.
  • To assess the correlation between Aurora-B and p-Akt expression in OS tissues.

Main Methods:

  • Immunohistochemistry to detect Aurora-B and p-Akt (Ser473) protein expression in patient tissues.
  • Recombinant lentivirus (Lv-shAURKB) for Aurora-B gene silencing.
  • In vitro assays including wound healing and Transwell invasion assays.
  • Western blot analysis to assess PI3K/Akt/NF-κB pathway activity.

Main Results:

  • A positive correlation was observed between Aurora-B and p-Akt protein expression in OS tissues.
  • Silencing Aurora-B significantly inhibited OS cell migration and invasion in vitro.
  • Knockdown of Aurora-B suppressed the activity of the PI3K/Akt/NF-κB signaling pathway.

Conclusions:

  • Aurora-B plays a crucial role in promoting OS cell migration and invasion.
  • Down-regulation of Aurora-B suppresses OS cell metastasis by modulating the PI3K/Akt/NF-κB pathway.
  • Targeting Aurora-B represents a potential therapeutic strategy for osteosarcoma management.
Keywords:
Aurora-BOsteosarcomaPI3K/Akt/NF-κB signaling pathwayinvasion and migration

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