目的:缺氧是许多实体瘤的特征,也是癌症治疗的不良预后因素。缺氧导致碳酸酐酶IX(CAIX)表达上调,一种pH调节酶。许多人体组织研究已经检查了CAIX表达在乳腺癌中的预后价值,但产生了不一致的结果。因此,我们进行了系统评价和荟萃分析,以评估CAIX表达对乳腺癌患者的预后价值.
方法:对电子数据库进行系统检索,以确定相关论文。临床结果包括无病生存期(DFS),乳腺癌患者的无复发生存期(RFS)和总生存期(OS)。审查管理器5.4版用于分析来自23个符合条件的研究(包含8390名患者)的数据。
结果:高CAIX表达与较差的RFS相关[HR=1.42,95%CI(1.32-1.51),p<0.00001],DFS[HR=1.64,95%CI(1.34-2.00),p<0.00001],和OS[HR=1.48,95%CI(1.22-1.80),p<0.0001]。在整个研究中观察到异质性。使用CAIX抗体有效果,评分方法,和CAIX表达上的肿瘤定位。
结论:CAIX过表达与较差的RFS显著相关,DFS,乳腺癌患者的OS。然而,需要在大量组织队列中进行进一步的工作,以定义最佳的方法学方法。
OBJECTIVE: Hypoxia is a characteristic of many solid tumours and an adverse prognostic factor for cancer therapy. Hypoxia results in upregulation of carbonic anhydrase IX (CAIX) expression, a pH-regulating enzyme. Many human tissue studies have examined the prognostic value of CAIX expression in breast cancer but have yielded inconsistent results. Therefore, a systematic
review and meta-analysis was undertaken to assess the prognostic value of CAIX expression for breast cancer patients.
METHODS: The electronic databases were systematically searched to identify relevant papers. The clinical outcomes included disease-free survival (DFS), recurrence-free survival (RFS) and overall survival (OS) in breast cancer patients.
Review Manager version 5.4 was employed to analysis data from 23 eligible studies (containing 8390 patients).
RESULTS: High CAIX expression was associated with poorer RFS [HR = 1.42, 95% CI (1.32-1.51), p < 0.00001], DFS [HR = 1.64, 95% CI (1.34-2.00), p < 0.00001], and OS [HR = 1.48, 95% CI (1.22-1.80), p < 0.0001]. Heterogeneity was observed across the studies. There was an effect of the CAIX antibody employed, scoring methods, and tumour localisation on CAIX expression.
CONCLUSIONS: CAIX overexpression was significantly associated with poorer RFS, DFS, and OS in breast cancer patients. However, further work in high quantity tissue cohorts is required to define the optimal methodological approach.