Association between the expression of T-cadherin and vascular endothelial growth factor and the prognosis of patients with gastric cancer

Wei,Bin; Shi,Haitao; Lu,Xiaolan; Shi,Ameng; Cheng,Yan; Dong,Lei

doi:10.3892/mmr.2015.3592

Association between the expression of T-cadherin and vascular endothelial growth factor and the prognosis of patients with gastric cancer

Authors:
- Bin Wei
- Haitao Shi
- Xiaolan Lu
- Ameng Shi
- Yan Cheng
- Lei Dong
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Affiliations: Department of Gastroenterology, Xi'an No. 1 Hospital, Xi'an, Shaanxi 710002, P.R. China, Department of Gastroenterology, The Second Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
Published online on: April 2, 2015 https://doi.org/10.3892/mmr.2015.3592
Pages: 2075-2081

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Abstract

T-cadherin has been identified as a tumor-suppressor gene in several types of cancer. The present study aimed to investigate the association of the expression of T-cadherin with angiogenesis, and to evaluate its prognostic value for patients with primary gastric cancer. Gastric cancer tissues and matched adjacent tissues from 166 patients receiving surgical resection were included in the present study. The expression of T‑cadherin was detected using immunohistochemistry, western blotting and reverse transcription‑quantitative polymerase chain reaction. The expression of vascular epidermal growth factor (VEGF) was detected using immunohistochemistry, and its association with the expression of T‑cadherin was analyzed. In addition, the association between the expression of T‑cadherin and clinicopathological features were analyzed. The mRNA and protein expression levels of T‑cadherin were significantly lower in the gastric cancer tissue compared with the corresponding adjacent normal tissue (P<0.05). The expression of VEGF was not associated with the expression of T‑cadherin in the gastric cancer tissue. The decreased protein expression of T‑cadherin correlated with smoking, larger tumor size (diameter, >4 cm), lymph node metastasis and a higher tumor‑lymph node‑metastasis stage (P<0.05 or P<0.01). However, the expression of T‑cadherin was not correlated with gender, age, alcohol intake, Helecobacter pylori infection or differentiation (P>0.05). The multivariate analysis demonstrated that the expression of T‑cadherin was an independent prognostic factor for the overall survival rate of patients with gastric cancer. This data suggested that the downregulation of T‑cadherin may contribute to gastric cancer progression, representing a useful biomarker for predicting the biological behavior and prognosis of gastric cancer. However, no significant association was observed between the expression of VEGF and T-cadherin.

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