[Correlation between prognosis and IL-33 expression in head and neck squamous cell carcinoma].

Objective: To determine the correlation between the expression of IL-33 and significance in cancer biologial and patient's prognosis in head and neck squamous cell carcinoma (HNSCC). Method: Twenty pairs of tumor tissue and adjacent normal tissue were collected. qRT-PCR and immunohistochemistry (IHC) were used to detect the expression of IL-33 mRNA and protein in tissues. Correlation between IL-33 expression with clinicopathologic features of 107 HNSCC patients were analyzed. Result: IL-33 mRNA and protein expression levels in normal tissue were higher than paired tumor tissue. IL-33 level was significantly lower in patients with advanced T stages, lymph node metastases and advanced clinical stages, IL-33 expression was higher in well differentiated tumor than moderate or poor differentiated tumor. Low IL-33 expression predicts poor prognosis. Multivariate analysis indicated that IL-33 expression was an independent predictive factor. Conclusion: IL-33 is related with the clinicopathological features in HNSCC and could be an independent predictor of HNSCC prognosis.