Aberrant Expression Levels of MTA1 and RECK in Nasopharyngeal Carcinoma: Association with Metastasis,Recurrence,and Prognosis

Abstract

Objectives:

We investigated the expression and clinical value of MTA1 and RECK genes in patients with nasopharyngeal carcinoma (NPC).

Methods:

We examined MTA1 and RECK expression in nasopharyngeal tissue from patients with chronic nasopharyngitis, lymph nodes with metastasis of NPC, and primary NPC tumor tissue by means of in situ hybridization and analyzed their correlation with the clinicopathologic features of NPC.

Results:

The positive expression of MTA1 in the NPC tissues and metastatic lymph nodes was significantly higher than that in the chronic nasopharyngitis tissues (p < 0.05). The positive expression of RECK in the NPC tissues and metastatic lymph nodes was significantly lower than that in the chronic nasopharyngitis tissues (p < 0.05). The RECK expression level was inversely correlated with the MTA1 expression level in the NPC tissues (p < 0.05). The increased MTA1 and decreased RECK expressions in the NPC tissues had no association with gender, age, T-stage, or clinical stage (p > 0.05). However, they had a positive correlation with cervical lymph node metastasis, tumor recurrence, and 5-year overall survival rate of the patients with NPC (p < 0.05). Moreover, multivariate analysis showed that MTA1 and RECK expressions were independent prognostic factors for survival (p < 0.05).

Conclusions:

The conversely abnormal expression levels of MTA1 and RECK may be collectively involved in progression of malignancies and may serve as molecular predictors for metastasis, recurrence, and prognosis of NPC.

Keywords

in situ hybridization MTA1 nasopharyngeal carcinoma RECK

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