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作 者:陆皓泉[1] 王玉珍[1] 孙鹏辉[1] 梁守沛[1] 李杰[1] 王小龙[1] 许东[1] 姚武[1] 吴逸明[1] 周舫[1]
机构地区:[1]郑州大学公共卫生学院劳动卫生学教研室,450001
出 处:《中华预防医学杂志》2012年第5期452-455,共4页Chinese Journal of Preventive Medicine
基 金:国家自然科学基金(30600490,30571552);河南省教育厅科技创新人才支持项口(2008HASTIT028);河南省教育厅自然科学研究资助项目(2008A320018)
摘 要:目的探讨肺癌组织中热休克蛋h70-2(heatshockprotein70-2,HSP70-2)1267A/G位点基因多态性对HSP70-2mRNA转录及蛋白表达水平的影响。方法以郑州市某医院2008年2-8月经组织病理学确诊的46例肺癌患者为对象,应用PCR-限制性片段长度多态性(PCR-RFLP)技术检测其HSP70-21267A/G位点多态性,应用RT-PCR法检测HSP70-2mRNA水平,应用Westernhlt,tting测定HSP70水平。。结果肺癌组织中,HSP70-2mRNA转录水平(1.02±0.30)和HSP70表达水平(0.44±0.12)均高于癌旁止常组织(分别为0.19±0.04、0.12±0.02)(P值均〈0.01)。肺癌患并HSP70-21267A/G位点携带AA基因型者其HSP70-2mRNA水平(1.32±0.22)高于携带AG、GG基因型者(分别为0.95±0.17、0.70±0.16)(P〈0.01);HSP70-21267A/G位点各基因型携带者HSP70水平分别为:0.47±0.13(AA型)、0.42±0.11(AG型)、0.45±0.11(GG型),其差异无统计学意义(P〉0.01)。结论HSP70-21267A/G位点多态性影响肺癌组织内HSP70mRNA转录水平,但对HSP70的表达水平无影响。Objective This study aimed to investigate the effects of gene polymorphism of heat shock protein 70-2 ( HSP 70-2 ) 1267A/G on the mRNA level HSP 70-2 mRNA and the protein level HSP 70 in human lung cancer. Methods Forty six lung cancer patients diagnosed histopathoIogically beteween Februai7 and August 2008 from a hospital in zhengzhou were enrolled as the subjects in this study. Gene polymorphism of HSP 70-2 1276A/G in 46 patients with lung cancer was detected by PCR-RFLP. The mRNA levels of HSP 70-2 mRNA and the protein levels of HSP 70 in lung tissue and para-cancerous tissues of these suhjccts were determined by RT-PCR and Western blotting respectively. Results The expression levels of HSP 70-2 mRNA (1.02±1267 (A/G) (P 〈 0.01 ) ; hnwever,the relative protein levels of HSP 70 were 0.47 ± 0. 13 (AA genotype), 0.42 ± 0. 11 (AG genotype) ,0. 45 ± 0. 11 ( GG genotype ) , respectively, which showed nn statistically significant difference ( P 〉 0.05 ). Conclusion The polymorphism of HSP 70-2 1267 (A/G) is highly associated with the transcription level of HSP 70-2 mRNA, but not with the expression level of HSP 70 protein.
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