Journal of Practical Oncology ›› 2020, Vol. 34 ›› Issue (5): 430-435.doi: 10.11904/j.issn.1002-3070.2020.05.008

• Clinical Research • Previous Articles     Next Articles

Expression of Copine-8 in gastric cancer and its correlations with clinicopathological features and prognosis

YIN Songxiang   

  1. Department of Gastroenterology,The Affiliated Hospital of Xiantao Vocational College,Xiantao 433000,China
  • Received:2020-04-06 Online:2020-10-28 Published:2020-11-02

Abstract: Objective The aim of this study was to investigate the correlation between the expression of copine-8(CPNE8)and clinicopathological characteristics and prognosis of gastric cancer.Methods A total of 144 patients with gastric cancer who underwent radical gastrectomy in the Affiliated Hospital of Xiantao Vocational College and confirmed by pathology from March 2011 to March 2014 were collected.The expression of CPNE8 in gastric cancer and its matched adjacent tissues were analyzed by immunohistochemistry,and its relationship with clinicopathological parameters and prognosis of gastric cancer was analyzed.Results Immunohistochemical results showed that the positive expression rate of CPNE8 in gastric cancer tissues was significantly higher than that in adjacent tissues(63.9% vs. 26.4%;χ2=36.450,P<0.0001).The expression of CPNE8 is closely related to the TNM stage and lymph node metastasis in patients with gastric cancer(χ2=5.993,P=0.014;χ2=6.703,P=0.009).Kaplan-Meier survival analysis showed that the overall survival time(OS)and disease-free survival time(DFS)of patients with high expression of CPNE8 were significantly shorter than those with low expression of CPNE8(χ2=23.130,P<0.001;χ2=21.570,P<0.001).The TNM stage(HR=1.297,95% CI:1.018~1.652,P=0.036),lymph node metastasis(HR=1.340,95% CI:1.027~1.749,P=0.031)and the expression of CPNE8 protein(HR=1.531,95% CI:1.208~1.940,P<0.001)were independent risk factors influencing OS of gastric cancer patients.The TNM stage(HR=1.280,95% CI:1.028~1.593,P=0.027)and the expression of CPNE8 protein(HR=6.010,95% CI:1.355~26.661,P=0.018)were independent risk factors for DFS of gastric cancer patients.Conclusion The expression of CPNE8 is significantly up-regulated in gastric cancer tissues,and is closely related to the malignant pathological characteristics of patients.CPNE8 may be one of the prognostic markers for gastric cancer patients.

Key words: Copine-8, Gastric cancer, Clinicopathological features, Prognosis

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