检验医学 ›› 2012, Vol. 27 ›› Issue (8): 631-634.

• 分子生物学检验论著 • 上一篇    下一篇

肺癌患者血浆及外周血单个核细胞Lunx mRNA检测的临床意义

赵文杰,周洪兴,王苏建,吴建康,王家平,张平   

  1. 南京医科大学附属常州市第二人民医院检验科,江苏 常州 213003
  • 收稿日期:2012-05-16 出版日期:2012-08-30 发布日期:2012-08-08
  • 通讯作者: 周洪兴,联系电话:0519-81087713。
  • 作者简介:赵文杰,男,1971年生,主管技师,主要从事血液学检验工作。

The clinical significance of Lunx mRNA detection in plasma and peripheral mononuclear cells in patients with lung cancer

  1. Department of Clinical Laboratory,Changzhou Second People′s Hospital,Nanjing Medical University,Jiangsu Changzhou 213003,China
  • Received:2012-05-16 Online:2012-08-30 Published:2012-08-08

摘要: 目的 检测肺癌患者血浆及外周血单个核细胞肺特异性X基因(Lunx) mRNA,探讨两者对肺癌辅助诊断的临床意义。方法 采用荧光定量聚合酶链反应(PCR)检测肺癌患者、肺良性疾病患者、肺外肿瘤患者及健康人血浆及外周血单个核细胞Lunx mRNA。结果 肺癌组患者血浆Lunx mRNA阳性率显著高于肺良性疾病组(χ2=113.10,P<0.01)、肺外肿瘤组(χ2=125.34,P<0.01)和健康组(χ2=100.33,P<0.01);Ⅲ~Ⅳ期肺癌患者血浆Lunx mRNA阳性率高于Ⅰ、Ⅱ期肺癌患者(χ2=7.07,P<0.05)。肺癌组患者外周血单个核细胞Lunx mRNA阳性率显著高于肺良性疾病组(χ2=32.79,P<0.01)、肺外肿瘤组(χ2=44.44,P<0.01)和健康组(χ2=44.44,P<0.01);Ⅲ~Ⅳ期肺癌患者外周血单个核细胞Lunx mRNA阳性率显著高于Ⅰ、Ⅱ期肺癌患者(χ2=24.52,P<0.01)。血浆Lunx mRNA检测对肺癌辅助诊断的敏感性高于单个核细胞检测的敏感性(χ2=36.46,P<0.01),血浆检测的阴性预测值高于外周血单个核细胞检测的阴性预测值(χ2=16.37,P<0.01)。结论 血浆与外周血单个核细胞Lunx mRNA检测均可用于肺癌的辅助诊断,前者敏感性较后者高。

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关键词: 肺特异性X基因, 循环RNA, 循环肿瘤细胞, 聚合酶链反应, 肺癌

Abstract: Objective To investigate the clinical auxiliary diagnosis significance of lung-specific X gene (Lunx) mRNA detection in plasma and peripheral mononuclear cells in patients with lung cancer. Methods Lunx mRNA in plasma and peripheral mononuclear cells was detected by fluorescence quantitation polymerase chain reaction (PCR) in patients with lung cancer,benign lung disease,extrapulmonary tumor and healthy subjects.   Results The positive rate of Lunx mRNA from plasma in lung cancer group was significantly higher than those in benign lung disease group (χ2=113.10,P<0.01), extrapulmonary tumor group (χ2=125.34,P<0.01) and healthy subjects (χ2=100.33,P<0.01). The positive rate of Lunx mRNA in plasma in patients with Ⅲ-Ⅳ stages of lung cancer was significantly higher than that in patients with Ⅰ-Ⅱ stages of lung cancer (χ2=7.07,P<0.05). The positive rate of Lunx mRNA in peripheral mononuclear cells in lung cancer group was significantly higher than those in benign lung disease group (χ2=32.79,P<0.01),extrapulmonary tumor group (χ2=44.44,P<0.01) and healthy subjects (χ2=44.44,P<0.01). The positive rate of Lunx mRNA in peripheral mononuclear cells in patients with Ⅲ-Ⅳ stages of lung cancer was significantly higher than that in patients with Ⅰ-Ⅱ stages of lung cancer (χ2=24.52,P<0.01). For the auxiliary diagnosis of lung cancer, the sensitivity of Lunx mRNA detection in plasma was higher than that in mononuclear cells (χ2=36.46,P<0.01). The negative predictive value of the Lunx mRNA detection in plasma was higher than that in mononuclear cells (χ2=16.37,P<0.01).   Conclusions The detection of Lunx mRNA in plasma and peripheral mononuclear cells can be used for the auxiliary diagnosis of lung cancer. The sensitivity in plasma is higher than that in mononuclear cells.

Key words: Lung-specific X gene, Circulating RNA, Circulating tumor cell, Polymerase chain reaction, Lung cancer