摘要
目的 检测MAGE 1、 2、 3、 4基因在肺癌细胞及癌旁正常肺组织中mRNA的表达水平。方法 用逆转录 -聚合酶链反应 (RT PCR)方法对 3 5例肺癌患者肿瘤组织和癌旁正常肺组织进行MAGE 1、 2、 3、 4mRNA表达检测。结果 3 5例肺癌肿瘤标本中MAGE 1、 2、 3、 4的阳性表达率分别为 2 2 .9% ( 8/3 5 )、62 .9% ( 2 2 /3 5 )、3 7.1% ( 13 /3 5 )、77.1% ( 2 7/3 5 ) ;四种基因至少有一种表达的几率是 85 .7% ( 3 0 /3 5 ) ;两种或两种以上同时表达几率是 71.4% ( 2 5 /3 5 )。癌旁正常肺组织四种基因均不表达。MAGE基因的表达在肺腺癌和鳞癌 ,在不同分期的非小细胞肺癌间无差异 ,并且与淋巴结转移与否无关 (P >0 .0 5 )。结论 MAGE 1、 2、 3、 4在肺癌组织中有较高比例的表达 ,癌旁正常肺组织中无表达。
Objective To investigate the expressions of MAGE 1, 2, 3 and 4 in lung cancer at mRNA level. Methods Using a reverse transcription polymerase chain reaction assay (RT PCR), the expressions of MAGE 1, 2, 3 and 4 in 35 lung cancer samples and non tumorous lung tissues were examined. Results Of the 35 tumor samples, the MAGE 1, 2, 3 and 4 were expressed at mRNA level in 22.9% (8/35), 62.9% (22/35), 37.1% (13/35) and 77.1% (27/35) respectively. At least one of these genes was expressed in 85.7% (30/35) of the samples. Two or more of these genes were expressed in 71.4% (25/35) of the samples. None of the non tumorous lung tissue was positive for these genes. No significant difference of the frequency of MAGE gene expression was found between adenocarcinoma and squamous cell carcinoma, between different tumor stages, and between groups with or without lymph node metastasis (P>0.05). Conclusion MAGE 1, 2, 3 and 4 are expressed at a high percentage in lung cancer. All of these genes are negative in the adjacent non tumorous lung tissue. These results indicate the possibility of a future specific immunotherapy for lung cancer based on these MAGE antigens.
出处
《中国肺癌杂志》
CAS
2003年第4期268-271,共4页
Chinese Journal of Lung Cancer
