吉林大学学报(医学版) ›› 2022, Vol. 48 ›› Issue (1): 163-171.doi: 10.13481/j.1671-587X.20220120

• 临床研究 • 上一篇    下一篇

MMP-9和TIMP-1表达在胃癌根治术后患者预后评估中的作用

覃丽粒1,马小波2,赵天业1,陶雪蓉1,郑敏1,王雪莹1,易嘉欣1,吴燕华1(),姜晶1()   

  1. 1.吉林大学第一医院临床研究部,吉林 长春 130021
    2.吉林大学第一医院病理科,吉林 长春 130021
  • 收稿日期:2021-05-21 出版日期:2022-01-28 发布日期:2022-01-17
  • 通讯作者: 吴燕华,姜晶 E-mail:wuyanhua@jlu.edu.cn;jiangjing19702000@jlu.edu.cn
  • 作者简介:覃丽粒(1997-),女,广西壮族自治区河池市人,在读硕士研究生,主要从事临床流行病学方面的研究。
  • 基金资助:
    国家科技部重点研发计划资助项目(2017YFC0907405);吉林省科技厅科技发展计划项目(20200201442JC);吉林大学研究生创新创业训练计划项目(101832020CX283);中央高校基本科研业务费专项资金项目(415010200019)

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

摘要: 目的

分析胃癌患者癌组织中基质金属蛋白酶9(MMP-9)和组织金属蛋白酶抑制剂1(TIMP-1)的表达,探讨其在胃癌根治术后患者预后评估中的价值。

方法

选取270例行胃癌根治术的胃癌患者,采用免疫组织化学染色法检测胃癌组织中MMP-9和TIMP-1蛋白阳性表达率。采用χ2检验或Fisher精确概率法分析MMP-9和TIMP-1阳性表达在不同临床病理特征胃癌患者中的分布情况。采用Kaplan-Meier法绘制生存曲线,Log-rank检验比较生存曲线的差异。采用多因素Cox回归模型分析MMP-9和TIMP-1表达与胃癌患者预后的关系。

结果

270例胃癌患者中,MMP-9和TIMP-1蛋白的表达部位为肿瘤细胞膜或细胞浆,MMP-9和TIMP-1蛋白阳性表达率分别为30.4%和26.3%。MMP-9和TIMP-1联合表达在不同年龄、性别、肿瘤大小、肿瘤类型、组织学分级、术后化疗和TNM分期胃癌患者中的分布比较差异无统计学意义(P>0.05)。Cox回归模型评估,MMP-9和TIMP-1联合表达、TNM分期和术后化疗是影响胃癌患者预后的独立因素,其中MMP-9+与胃癌患者的良好预后相关,MMP-9/TIMP-1+胃癌患者的死亡风险提高,预后更差(MMP-9+/TIMP-1+/- vs MMP-9/TIMP-1+:HR=0.537,95% CI:0.338~0.851,P=0.008)。TNM分期为Ⅲ期、未接受术后化疗的胃癌患者较TNM分期为Ⅰ/Ⅱ期、接受化疗的胃癌患者死亡风险更高,预后更差(HR=1.873,95% CI:1.334~2.631,P<0.001;HR=2.301,95% CI:1.656~3.197,P<0.001)。分层分析,在TNM分期为Ⅰ/Ⅱ期、接受术后化疗和非印戒细胞型的胃癌患者中,MMP-9+胃癌患者的死亡风险较MMP-9/TIMP-1+患者明显降低,预后更好(P<0.05)。

结论

MMP-9/TIMP-1联合表达可作为胃癌根治术后患者预后评估的独立预测因子;术后未化疗和TNM分期为Ⅲ期是胃癌根治术后患者预后的独立危险因素。

关键词: 基质金属蛋白酶9, 组织金属蛋白酶抑制剂1, 胃肿瘤, 预后, 胃癌根治术

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

中图分类号: 

  • R735.2