Laboratory Medicine ›› 2022, Vol. 37 ›› Issue (1): 41-46.DOI: 10.3969/j.issn.1673-8640.2022.01.008

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Correlation between E-Cad,G-17,HER-2 and postoperative recurrence risk of gastric cancer

MAO Zheng, QIAN Zengkun, YING Fei, WANG Zhaoli, XIAO Qun, CUI Fan()   

  1. Department of Clinical Laboratory,Wuhu First People's Hospital,Wuhu 241000,Anhui,China
  • Received:2021-05-20 Revised:2021-09-22 Online:2022-01-30 Published:2022-03-07
  • Contact: CUI Fan

Abstract:

Objective To investigate the correlation between serum epithelial cadherin(E-Cad)and gastrin-17(G-17)levels and human epidermal growth factor receptor-2(HER-2) expression in tumor tissues and the risk of postoperative recurrence in patients with gastric cancer. Methods Totally,92 patients with gastric cancer who underwent radical gastric cancer treatment were enrolled,and the serum E-Cad and G-17 levels and the tumor tissue HER-2 expression were determined before the operation. All the patients were followed up for 5 years,with gastric cancer recurrence or 5 years of follow-up as the follow-up endpoint. Totally,92 patients with benign gastric lesions were enrolled as control group. The clinical data(sex,age,clinical stage,degree of differentiation,recurrence and so on) of all the gastric cancer patients were collected. Receiver operating characteristic(ROC) curve was used to evaluate the efficiency of various indicators in judging the recurrence of gastric cancer. Cox regression analysis was used to evaluate the risk factors affecting the recurrence of gastric cancer. Kaplan-Meier survival curve was used to evaluate the 5-year recurrence of gastric cancer. Results The serum G-17 level and the positive rate of HER-2 in gastric cancer group were higher than those in control group(P=0.000),and the serum E-Cad level was lower than that in control group(P=0.000). The levels of serum E-Cad and G-17 and the positive rate of HER-2 were correlated with TNM stage,differentiation and recurrence of gastric cancer(P<0.05),but there was no correlation with sex(P>0.05). ROC curve analysis showed that the areas under curves(AUC) of single determinations of E-Cad,G-17 and HER-2 and combined determination were 0.775,0.822,0.603 and 0.950,respectively. Kaplan-Meier survival curve analysis showed that the recurrence rate of low expression of E-Cad was higher than that of high expression group(P<0.05),while the recurrence rate of low expression of G-17 and low expression of HER-2 was lower than that of high expression of G-17 and high expression of HER-2(P<0.05). Cox regression analysis showed that decreased E-Cad level,increased G-17 level and increased HER-2 expression were risk factors for gastric cancer recurrence [hazard ratios(HR) were 0.835,1.568 and 3.981,95% confidence intervals(CI) were 0.767-0.909,1.292-1.904 and 1.504-10.538,respectively]. Conclusions E-Cad,G-17 and HER-2 play roles in the prediction of gastric cancer recurrence after radical gastric cancer treatment.

Key words: Epithelial cadherin, Gastrin-17, Human epidermal growth factor receptor-2, Gastric cancer, Recurrence

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