Abstract
OBJECTIVE: TRIB3 has been confirmed to participate in and regulate biological metabolic activities in head and neck tumors such as nasopharyngeal carcinoma and oropharyngeal carcinoma, so the purpose of this study was to explore whether there is a correlation between TRIB3 and Laryngeal Squamous Cell Carcinoma (LSCC) and to preliminarily explore the biological characteristics of TRIB3 in LSCC. METHODS: TRIB3 expression in the LSCC was analyzed based on The Cancer Genome Atlas (TCGA) database. CCK-8 assay, Colony Formation Assay, wound healing assay, and Transwell assay were performed to investigate the roles of TRIB3 in the proliferation, invasion and metastasis of LSCC. The Protein-Protein Interaction (PPI) network of TRIB3 was analyzed based on the STRING database. Western blotting and qRT-PCR were employed to detect the protein and mRNA expression of TRIB3. RESULTS: TRIB3 over-expressed in the LSCC, which was related to the poor prognosis of LSCC. Patients with methylation related to high TRIB3 expression had a poorer prognosis. Knock-down of TRIB3 expression suppresses the growth, invasion and migration of LSCCs via PI3K / AKT / mTOR. TIME analysis, surface checkpoint analysis, and prediction model indicated that TRIB3 related risk model displayed a poor prognosis. CONCLUSION: This study investigates the role of TRIB3 in the biological characteristics of LSCC, and preliminarily concludes that TRIB3 may be a potentially promising prognostic biomarker for LSCC. TRIB3 may facilitate the growing, invasive and migrating LSCC, leading to a poor prognosis.