Journal of Jilin University(Medicine Edition) ›› 2022, Vol. 48 ›› Issue (1): 163-171.doi: 10.13481/j.1671-587X.20220120

• Research in clinical medicine • Previous Articles     Next Articles

Effects of MMP-9 and TIMP-1 expressions on prognostic evaluation of gastric cancer patients after radical gastrectomy

Lili QIN1,Xiaobo MA2,Tianye ZHAO1,Xuerong TAO1,Min ZHENG1,Xueying WANG1,Jiaxin YI1,Yanhua WU1(),Jing JIANG1()   

  1. 1.Department of Clinical Research,First Hospital,Jilin University,Changchun 130021,China
    2.Department of Pathology,First Hospital,Jilin University,Changchun 130021,China
  • Received:2021-05-21 Online:2022-01-28 Published:2022-01-17
  • Contact: Yanhua WU,Jing JIANG E-mail:wuyanhua@jlu.edu.cn;jiangjing19702000@jlu.edu.cn

Abstract: Objective

To analyze the expressions of matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1) in cancer tissue of the gastric cancer patients, and to investigate their values in prognostic evaluation of the gastric cancer patients underwent radical gastrectomy.

Methods

A total of 270 gastric cancer patients who underwent radical gastrectomy were enrolled in this study, and the positive expression rates of MMP-9 and TIMP-1 in cancer tissue of the patients were detected by immunohistochemistry method. Pearson χ2 or Fisher’s exact test was used to assess the distribution of MMP-9 and TIMP-1 positive expressions in the gastric cancer patients with different clinicopathological parameters. Survival curves were plotted using Kaplan-Meier method and the differences were assessed by Log-rank test. Multivariate Cox regression model was conducted to analyze the relationships between the expressions of MMP-9 and TIMP-1 and the prognosis of the gastric cancer patients underwent radical gastrectomy.

Results

Among the 270 gastric cancer patients, MMP-9 and TIMP-1 were expressed in cytoplasm or cell membrane of tumor cells, and the positive expression rates of MMP-9 and TIMP-1 were 30.4% and 26.3%, respectively. No correlations between the co-expression of MMP-9, TIMP-1 and the age,gender,tumor size,tumor type,histological type,chemotherapy after operation,and TNM stage of the patients were identified. The results of Cox regression model showed that co-expression of MMP-9 and TIMP-1, postoperative chemotherapy and TNM stage were the significant independent factors for the prognosis of the gastric cancer patients. The gastric cancer patients with MMP-9 positive expression showed the better survival, and among the patients withMMP-9 negative expression, the risk of death in the patients with TIMP-1 positive expression was increased, which indicated the worse prognosis(MMP-9+/TIMP-1+/-vs MMP-9/TIMP-1+:HR=0.537, 95% CI: 0.338-0.851,P=0.008). Furthermore, compared with the patients with postoperative chemotherapy and TNM stage Ⅰ/Ⅱ, the patients with no-postoperative chemotherapy and TNM stage Ⅲ had higher risk of death and worse prognosis(HR=1.873,95% CI: 1.334-2.631,P<0.001; HR=2.301, 95% CI: 1.656-3.197, P<0.001).In the subgroup analysis, among the gastric cancer patients with TNM stage Ⅰ/Ⅱ, postoperative chemotherapy or no signet-ring cell cancers, the risk of death in MMP-9+ group was decreased compared with MMP-9/TIMP-1+ subgroup (P<0.05),which indicated the better prognosis.

Conclusion

Co-expression of MMP-9 and TIMP-1 could serve as an independent prognostic predictor in the gastric cancer patients underwent radical gastrectomy; No postoperative chemotherapy and TNM stage Ⅲ are the risk factors for the prognosis of gastric cancer patients underwent radical gastrectomy.

Key words: Matrix metalloproteinase-9, Tissue inhibitor of metalloproteinase-1, Stomach neoplasms, Prognosis, Radical gastrectomy

CLC Number: 

  • R735.2