等位基因特异性寡核苷酸和双环探针特异引物荧光聚合酶链反应检测非小细胞肺癌表皮生长因子受体基因突变  

Detection of epidermal growth factor receptor gene mutation in non-small cell lung cancer by allele- specific oligonucleotide-PCR and bi-loop probe specific primer quantitative

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作  者:邓磊[1] 唐源[2] 林静 陆小军[3] 薛建新[1] 王立帅[1] 周麟[1] 邹艳[2] 应斌武[3] 李甘地[2] 卢铀[1] 

机构地区:[1]四川大学华西医院胸部肿瘤科,成都610041 [2]四川大学华西医院病理科,成都610041 [3]四川大学华西医院实验医学科,成都610041 [4]华西学生肿瘤研究学会

出  处:《中华病理学杂志》2012年第1期20-22,共3页Chinese Journal of Pathology

摘  要:目的分析比较等位基因特异性寡核苷酸聚合酶链反应(ASO—PCR)和双环探针特异引物荧光PCR(BPSP—qPCR)的表皮生长因子受体(EGFR)基因突变检测敏感性。方法收集2009年9月至2010年12月在四川大学华西医院病理科留存非小细胞肺癌标本96例,行ASO—PCR检测EGFR突变,其中39例再行BPSP—qPCR检测。结果ASO—PCR测得突变率为30.2%(29/96)。其中女性高于男性[45.5%(20/44)比17.3%(9/52),P=0.003],不吸烟者高于吸烟者[44.1%(26/59)比8.1%(3/37),P〈0.001],腺癌高于非腺癌[37.0%(27/73)比8.7%(2/23),P=0.01]。ASO—PCR检测阴性标本中,具有腺癌和不吸烟特征,BPSP—qPCR检测19-del和L858R阳性的检出率可提高10.3%(4/39),BPSP—qPCR检测阳性率明显高于ASO—PCR[66.7%(26/39)比41.0%(16/39),P=0.02]。结论BPSP—qPCR比ASO—PCR检测EGFR敏感基因突变有更高的敏感性。Objective To compare the detection sensitivity of epidermal growth factor receptor (EGFR) mutations between allele specific oligonucleotide PCR(ASO-PCR) and bi-loop probe and specific primer quantitative PCR (BPSP-qPCR). Methods A total of 96 non-small cell lung cancer specimens were selected from West China Hospital from September 2009 to December 2010. ASO-PCR was developed to detect the presence of classical EGFR mutations. A total 39 available specimens were also tested by BPSP- qPCR. Results EGFR mutation detection rate was 30. 2% (26/96) by ASO-PCR. The mutation rate was higher in female than in male patients[45.5% (20/44) vs. 17.3% (9/52) ,P =0. 003] , non-smokers than smokers[44.1% (26/59) vs. 8.1% (3/37) ,P 〈0.001 ] and adenocarcinomas than other subtypes of lung cancer [37.0% (27/73) vs. 8.7% (2/23), P = 0.01 ]. Among mutation negative cases by ASO-PCR, BPSP-qPCR increased the rate of detection of 19-del and L858R mutation by 10. 3% (4/39) in adenocarcinomas and non-smoking subset. Overall, the mutation detection rate of BPSP-qPCR was higher than that of ASO-PCR [ 66. 7% (26/39) vs. 41.0% ( 16/39), P = 0. 02 ]. Conclusion BPSP-qPCR has a better detection sensitivity than that of ASO-PCR.

关 键 词: 非小细胞肺 受体 表皮生长因子 聚合酶链反应 

分 类 号:R734.2[医药卫生—肿瘤]

 

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