Journal
MEDICAL ONCOLOGY
Volume 31, Issue 7, Pages -Publisher
HUMANA PRESS INC
DOI: 10.1007/s12032-014-0017-5
Keywords
Transient receptor potential vanilloid 2; Overexpression; Esophageal squamous cell carcinoma; Prognosis
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Funding
- Youth grand of the first affiliated hospital of Zhengzhou University
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Transient receptor potential vanilloid 2 (TRPV2) was proved to play a crucial role in the tumor progression of various cancers. The association between the expression of TRPV2 and clinical outcome in cancer patients has not been studied yet. We aim to elucidate the role of TRPV2 in predicting prognosis of patients with esophageal squamous cell carcinoma (ESCC). Fresh frozen samples were collected immediately from 170 patients with ESCC after surgical resection from 2003 to 2008, including 45 pairs of tumor tissues and non-tumor tissues. TRPV2 expression was measured by quantitative real-time PCR. TRPV2 mRNA was over-expressed in ESCC tissues and cell lines. High expression of TRPV2 was observed more frequently in patients with advanced pT stage (P< 0.001), lymph node metastasis (P = 0.010) and advanced pathological stage (P = 0.001). Patients with high expression of TRPV2 (>44.40, n = 83) had worse 5-year disease-specific survival (40.0 vs 62.6 %, P< 0.001) and disease-free survival (38.4 vs 61.5 %, P< 0.001) than that with low expression (<= 44.40, n = 87). Multivariate analysis found that the expression of TRPV2 mRNA (HR 2.19, 95 % CI 1.39-3.46, P = 0.031) and pN category (HR 2.13, 95 % CI 1.36-3.33, P = 0.001) were independent prognostic factors. Overexpression of TRPV2 mRNA was associated with poor prognosis and might serve as a novel prognostic biomarker for resected ESCC patients in early stage.
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