检验医学 ›› 2021, Vol. 36 ›› Issue (7): 705-709.DOI: 10.3969/j.issn.1673-8640.2021.07.005

• 临床应用研究·论著 • 上一篇    下一篇

p2PSA、p2PSA%、PHI在前列腺癌辅助诊断中的价值

权衡1, 朱婧2, 廖焕金1, 伍均2()   

  1. 1.上海交通大学附属第一人民医院检验科,上海 200080
    2.上海交通大学附属第一人民医院嘉定分院检验科,上海 201803
  • 收稿日期:2020-11-23 出版日期:2021-07-30 发布日期:2021-07-26
  • 通讯作者: 伍均
  • 作者简介:伍 均,E-mail: jun.wu@shsmu.eud.cn
    权 衡,男,1990年生,学士,技师,主要从事临床生化检验工作。
  • 基金资助:
    国家自然科学基金面上项目(82072892);上海市自然科学基金面上项目(21ZR1454900);上海市嘉定区重点学科项目(2020-jdyxzdxk-13)

Role of p2PSA,p2PSA% and PHI in the diagnosis of prostate cancer

QUAN Heng1, ZHU Jing2, LIAO Huanjin1, WU Jun2()   

  1. 1. Department of Clinical Laboratory,Shanghai General Hospital,Shanghai Jiao Tong University,Shanghai 200080,China
    2. Department of Clinical Laboratory,Jiading Branch,Shanghai General Hospital,Shanghai Jiao Tong University,Shanghai 201803,China
  • Received:2020-11-23 Online:2021-07-30 Published:2021-07-26
  • Contact: WU Jun

摘要:

目的 探讨前列腺特异性抗原同源异构体2(p2PSA)、前列腺特异性抗原同源异构体2百分比(p2PSA%)和前列腺健康指数(PHI)在鉴别良性、恶性前列腺疾病中的价值。方法 选取行经直肠超声引导前列腺穿刺活检的男性患者250例,根据病理结果分为良性前列腺疾病组(145例)和前列腺癌组(105例),将所有患者按年龄分为≤65岁和>65岁2个年龄段。检测所有患者血清总前列腺特异性抗原(t-PSA)、游离前列腺特异性抗原(f-PSA)和p2PSA,并计算游离前列腺特异性抗原百分比(f-PSA%)、p2PSA%和PHI。采用受试者工作特征(ROC)曲线评估各项指标诊断前列腺癌的效能。结果 与良性前列腺疾病组比较,前列腺癌组t-PSA、p2PSA、p2PSA%、PHI均显著升高(P<0.01、P<0.001),f-PSA%显著降低(P<0.001),f-PSA差异无统计学意义(P>0.05)。ROC曲线分析结果显示,在≤65岁的患者中,t-PSA、f-PSA、f-PSA%、p2PSA、p2PSA%、PHI诊断前列腺癌的曲线下面积(AUC)分别为0.687、0.500、0.792、0.815、0.795、0.892;在>65岁的患者中,t-PSA、f-PSA、f-PSA%、p2PSA、p2PSA%、PHI诊断前列腺癌的AUC分别为0.748、0.542、0.900、0.780、0.843、0.929。结论 前列腺癌标志物在不同年龄段中的诊断效能有一定差异。新型前列腺癌标志物PHI、p2PSA、p2PSA%可提高良性、恶性前列腺疾病的鉴别诊断效能。

关键词: 前列腺特异性抗原同源异构体2, 前列腺特异性抗原, 前列腺癌

Abstract:

Objective To investigate the diagnostic value of prostate-specific antigen isoform 2(p2PSA),prostate-specific antigen isoform 2 percentage(p2PSA%) and prostate health index(PHI) in the identification of benign and malignant prostate diseases.Methods A total of 250 male patients who underwent transrectal ultrasound-guided prostate biopsy were enrolled and classified into benign prostate disease group(145 cases) and prostate cancer group(105 cases) based on the pathological results,and they were classified into ≤65 years old and >65 years old groups according to ages. Total prostate-specific antigen(t-PSA),free prostate-specific antigen(f-PSA) and p2PSA were determined in serum samples from all the patients,and free prostate-specific antigen percentage(f-PSA%),p2PSA% and PHI were calculated. The efficiency of each index in the diagnosis of prostate cancer was evaluated by receiver operating characteristic(ROC) curve. Results Compared with benign prostate disease group,the t-PSA,p2PSA,p2PSA% and PHI of prostate cancer group were increased(P<0.01,P<0.001),and f-PSA% was decreased(P<0.001). There was no statistical significance in f-PSA between the 2 groups(P>0.05). ROC curve analysis results showed that,in ≤65 years old patients,the areas under curves(AUC) of t-PSA,f-PSA,f-PSA %,p2PSA,p2PSA% and PHI in the diagnosis of prostate cancer were 0.687,0.500,0.792,0.815,0.795 and 0.892,respectively. In >65 years old patients,the AUC of t-PSA,f-PSA,f-PSA %,p2PSA,p2PSA% and PHI in the diagnosis of prostate cancer were 0.748,0.542,0.900,0.780,0.843 and 0.929,respectively.Conclusions The diagnostic efficiency of prostate cancer markers differs in different ages. Prostate cancer markers,PHI,p2PSA and p2PSA%,can improve the differential diagnosis of benign and malignant prostate diseases.

Key words: Prostate-specific antigen isoform 2, Prostate-specific antigen, Prostate cancer

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