Objective: To investigate the expression and clinical significance of TRAP1 (tumor necrosis factor receptor-associated protein 1) in kidney cancer.
Methods: TRAP1 expression was detected in kidney cancer and normal kidney tissues by qRT-PCR and immunohistochemistry (IHC), respectively. Then, the correlation of TRAP1 expression with clinicopathological characters and patients' prognosis was evaluated in kidney cancer.
Results: IHC results revealed that the high-expression rates of TRAP1 in kidney cancer tissues and normal kidney tissues were 51.3% (41/80), 23.3% (7/30), and the difference was statistically significant (P=0.01). Also, TRAP1 mRNA level in kidney cancer was found to be significantly greater compared with those in normal kidney by qRT-PCR. In addition, TRAP1 expression in kidney cancer significantly correlated with lymph node metastasis and clinical stage (P<0.05). Kaplan-Meier survival analysis indicated that the mean survival time of patients with TRAP1 low-expression was significantly higher (56 months) than those patients with TRAP1 high-expression (47 months). Meanwhile, Kaplan-Meier and Cox survival analysis indicated that TRAP1, lymph node metastasis and clinical stage were correlated with patients' prognosis.
Conclusion: TRAP1 is highly expressed in kidney cancer and correlates with patients prognosis, which may be served as a potential marker for the diagnosis and treatment of kidney cancer.
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