检验医学 ›› 2019, Vol. 34 ›› Issue (7): 600-604.DOI: 10.3969/j.issn.1673-8640.2019.07.006

• 临床应用研究·论著 • 上一篇    下一篇

p2PSA及其相关指标PHI在前列腺癌诊断中的应用价值

黄宜, 王文涓, 许静, 沈云岳, 刘华, 杨翠霞()   

  1. 上海交通大学附属第六人民医院检验科,上海 200233
  • 收稿日期:2018-11-17 出版日期:2019-07-30 发布日期:2019-07-25
  • 作者简介:null

    作者简介:黄宜,男,1972年生,学士,检验技师,主要研究方向为临床生化与免疫检验。

Role of p2PSA and its related marker PHI in the diagnosis of prostate cancer

HUANG Yi, WANG Wenjuan, XU Jing, SHEN Yunyue, LIU Hua, YANG Cuixia()   

  1. Department of Clinical Laboratory,Shanghai Jiaotong University Affiliated Sixth People's Hospital,Shanghai 200233,China
  • Received:2018-11-17 Online:2019-07-30 Published:2019-07-25

摘要:

目的 探讨前列腺特异性抗原同源异构体2(p2PSA)及其相关指标前列腺健康指数(PHI)在前列腺癌诊断中的意义。方法 检测50例前列腺癌患者和46例非前列腺癌患者的血清p2PSA、总前列腺特异性抗原(t-PSA)、游离前列腺特异性抗原(f-PSA),计算f-PSA%、p2PSA%和PHI。采用受试者工作特征(ROC)曲线评价各项指标诊断前列腺癌的价值。将前列腺癌患者分为中分化腺癌组(Gleason评分≤7分,32例)和低/未分化癌组(Gleason评分>7分,18例),比较各项指标的差异。结果 前列腺癌组年龄、t-PSA、f-PSA%、p2PSA、p2PSA%和PHI与非前列腺癌组比较,差异均有统计学意义(P<0.05),2个组之间f-PSA差异无统计学意义(P>0.05)。ROC曲线分析结果显示,PHI、p2PSA%、p2PSA、f-PSA%和t-PSA诊断前列腺癌的曲线下面积(AUC)分别为0.870、0.837、0.762、0.671、0.652。PHI、p2PSA%对前列腺癌的诊断价值优于f-PSA%和t-PSA。低/未分化癌组f-PSA 、p2PSA、f-PSA%和PHI均高于中分化腺癌组(P<0.05),2个组之间p2PSA%及t-PSA差异均无统计学意义(P>0.05)。结论 PHI诊断前列腺癌的价值优于目前常用的t-PSA和f-PSA%,可作为前列腺癌的辅助诊断指标应用于临床。

关键词: 前列腺特异性抗原同源异构体2, 前列腺健康指数, 前列腺增生, 前列腺癌

Abstract:

Objective To investigate the role of prostate-specific antigen isoform 2(p2PSA) and its related marker prostate health index(PHI) in the diagnosis of prostate cancer. Methods Serum p2PSA,total prostate-specific antigen(t-PSA) and free prostate-specific antigen(f-PSA) were determined in 50 patients with prostate cancer and 46 patients without prostate cancer. The f-PSA%,p2PSA% and PHI were calculated. Receiver operating characteristic(ROC) curve was used to evaluate the diagnostic efficiency in the diagnosis of prostate cancer. Prostate cancer patients were classified into moderately differentiated adenocarcinoma group(Gleason score≤7,32 cases) and low/undifferentiated carcinoma group(Gleason score>7,18 cases). The results were analyzed comparatively. Results Age,t-PSA,f-PSA%,p2PSA,p2PSA% and PHI between prostate cancer group and non-prostate cancer group had statistical significance(P<0.05),and there was no statistical significance in f-PSA between the 2 groups(P>0.05). ROC curve analysis showed that the areas under curves(AUC) of PHI,p2PSA%,p2PSA,f-PSA% and t-PSA in the diagnosis of prostate cancer were 0.870,0.837,0.762,0.671 and 0.652,respectively. The diagnostic efficiency of PHI and p2PSA% in prostate cancer was better than that of f-PSA% and t-PSA. The levels of f-PSA,p2PSA,f-PSA% and PHI in low/undifferentiated carcinoma group were higher than those in moderately differentiated adenocarcinoma group(P<0.05),and there was no statistical significance in p2PSA% and t-PSA between the 2 groups(P>0.05). Conclusions The diagnostic efficiency of PHI for prostate cancer is better than that of t-PSA and f-PSA%,which can be used as an auxiliary diagnostic method for prostate cancer in clinic.

Key words: Prostate-specific antigen isoform 2, Prostate health index, Prostate hyperplasia, Prostate cancer

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