Association of RUNX3 Methylation with Clinical Outcome and Cell Migration/Invasion in Laryngeal Squamous Cell Carcinoma

ABSTRACT

This study identifies promoter methylation status of RUNX3 in 77 LSCC patient tissues and their paired adjacent healthy tissues. Hypermethylation percentage RUNX3 occurred in LSCC samples was significantly higher than that in normal tissues, as well as associated with suppression of RUNX3 expression, TNM classification of malignant tumors stage, lymph node metastasis and poor overall survival rate. Reduced methylation and increased expression of RUNX3 genes in vitro was observed and decreased cell migration was further confirmed following 5-azacytidine treatment. RUNX 3 promoter hypermethylation can lead to down-regulation of RUNX3 in LSCC cancerous tissue.

KEYWORDS:

• Cell migration
• DNA methylation
• Expression
• Laryngeal squamous cell carcinoma
• Runt-related transcription factor

Acknowledgement

This study was supported by Science and Technology Project of Guizhou Province (No.25-LKZ2013).

Declaration of interest

All authors declared no conflicts of interest.