中国乳腺癌患者p53表达临床生物学意义的 Meta分析

目的:利用Meta分析揭示p53在中国乳腺癌患者中的表达规律,探讨p53基因突变与预后的关系,为临床判断乳腺癌预后、实现乳腺癌的规范化和个体化治疗提供依据。方法:收集过去10年国内发表的有关p53与乳腺癌的文献,按照一定的入排标准将研究方法相似的文献归类整理,原始数据汇总后进行Meta分析和统计处理。结果:p53在中国乳腺癌妇女中的阳性表达率平均为45%,95%置信区间是43%~47%,p53表达阳性与淋巴结转移、术后复发、生存时间、肿瘤大小、组织学分级和临床分期有相关性,而年龄和病理类型与p53表达无关;p53对于判断预后有较好的特异度和敏感度,与临床预后有较好的相关性。结论:p53表达作为独立的分子标志物在一定程度上反映了乳腺癌的生物学特性,可以作为判断预后及规范化和个体化治疗的可靠指标。

Clinical biology value of p53 overexpression in Chinese breast cancer by Meta analysis

Purpose:To find out the clinical biology value of p53 overexpression on Chinese breast cancer by Meta analysis. Methods:Reviewed all the published studies during the recent 10 years regarding p53 and breast cancer, and used standard techniques of Meta-analysis to combine the results of these studies to produce a more precise estimate of the prognostic significance of p53 mutations.Results:the mean of p53 positive express was 45%,95% confidence interval (43-47)%:, p53 positive was related with node metastasis, recurrence after surgery, over survival, tumor size and nuclear grade, but not related with age and pathology type, p53 was a special and sensitive prognostic factor for breast cancer.Conclusions:p53 can be an independent molecular marker to definitive prognostic of breast cancer, and possibly can be a reliable marker for choice of standard and individulized therapy.