Cytotoxic Effect of Thiabendazole on Hn5 Head and Neck Squamous Cell Carcinoma Cell Line

Amir Jalal Abassi1, Abdolreza Mohamadnia2, Seyed Alireza Parhiz1

  • 1Craniomaxillofacial Research Center, Tehran University of Medical Sciences, Tehran, Iran.

Abstract

Insights

Thiabendazole significantly reduced oral squamous cell carcinoma cell viability and inhibited vascular endothelial growth factor gene expression. This study demonstrates thiabendazole

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Thiabendazole shows anti-angiogenic potential in melanoma and fibrosarcoma.
  • Its effects on oral squamous cell carcinoma (OSCC) remain uninvestigated.

Purpose of the Study:

  • To evaluate the cytotoxic impact of thiabendazole on the HN5 head and neck squamous carcinoma cell line.
  • To assess thiabendazole's effect on vascular endothelial growth factor (VEGF) in OSCC.

Main Methods:

  • HN5 cells were treated with varying thiabendazole concentrations for 24, 48, and 72 hours.
  • Cell viability was measured using the MTT assay to determine IC50 values.
  • VEGF gene expression and release were analyzed via real-time PCR and ELISA, respectively.

Main Results:

  • Thiabendazole demonstrated a dose- and time-dependent decrease in HN5 cell viability (p < 0.05).
  • Significant reduction in cell viability was observed at concentrations from 100-650μM.
  • Thiabendazole (500μM) significantly suppressed VEGF mRNA expression (p < 0.001) and inhibited VEGF release.

Conclusions:

  • Thiabendazole effectively inhibits proliferation of HN5 oral squamous cell carcinoma cells.
  • The drug also suppresses vascular endothelial growth factor gene expression.
  • Findings suggest thiabendazole's potential as an anti-cancer agent for OSCC.