Han XJ, Wu KJ, Xiao Y, Sun M, Zhu YN, Zhu BX. Clinical significance of expression of neural cadherin and proliferating cell nuclear antigen in gastric carcinoma.
Shijie Huaren Xiaohua Zazhi 2011;
19:3477-3482. [DOI:
10.11569/wcjd.v19.i34.3477]
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Abstract
AIM: To investigate the expression of neural cadherin (N-cad) and proliferating cell nuclear antigen (PCNA) proteins in gastric carcinoma and to analyze their clinical significance.
METHODS: Seventy-nine surgical specimens of gastric cancer, 45 paracancerous tissue specimens, and 19 normal gastric mucosal tissue specimens were used in this study. N-cad and PCNA protein expression in these specimens was examined by immunohistochemistry. The correlation between the expression of N-cad and PCNA proteins and clinicopathologic parameters of gastric carcinoma was analyzed.
RESULTS: The rates of N-cad and PCNA protein overexpression in gastric carcinoma were 78.5% (62/79) and 88.6 (70/79), respectively. Although there were no statistical significances in the rates of N-cad and PCNA protein overexpression between gastric carcinoma and paracancerous tissue, they were significantly higher than those in normal control tissue (both P < 0.01). N-cad and PCNA protein overexpression was associated with tumor differentiation and TNM stage (N-cad: 62.5% vs 89.4%, 64.5% vs 87.5%; PCNA: 83.3% vs 95.7%, 77.4% vs 95.8%, all P < 0.05), but not with sex, age, tumor type or lymph node metastasis (all P > 0.05).
CONCLUSION: Up-regulation of N-cad and PCNA protein expression was observed in gastric carcinoma. Detection of N-cad and PCNA protein expression can be used to evaluate malignant biological behavior and prognosis of gastric cancer.
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