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实时RT-PCR法检测非小细胞肺癌淋巴微转移

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摘要 目的以Lunx和血管内皮生长因子C(VEGF-C)及其受体为靶基因,实时PT-PCR法检测非小细胞肺癌(NSCLC)患者癌旁组织、手术切除区域淋巴结微转移,探讨人肺特异性X蛋白(humanlung-specificXprotein,Lunx)、VEGF-C、VEGF受体3(VEGFR-3)的敏感性和特异性。方法以肺部良性病变切除的20枚淋巴结为对照,采用SYBRGreenⅠ嵌合荧光实时RT-PCR检测NSCLC手术切除区域淋巴结60枚LunxmRNA表达并与常规病理比较;以肺部良性病变切除的组织20例为对照,检测VEGF-C、VEGFR-3在30例癌旁组织中的表达。结果30例NSCLC患者癌旁组织VEGFCR-3、VEGF-C阳性率分别为60%(18/30)、77%(23/30),分别与病理阳性率37%(11/30)比较,均有显著差异(χ2=4,P<0.05;χ2=6.72,P<0.01);60枚NSCLC患者手术切除区域淋巴结Lunx阳性率78.3%(47/60),与病理阳性率55%(33/60)比较有显著差异(χ2=7.68,P<0.01)。结论VEGFCR-3、VEGF-C、Lunx均可作为NSCLC淋巴微转移的分子标志物,与病理比较有较高的敏感性;实验采用一种新颖的荧光实时RT-PCR相对定量方法分析结果,有助于早期肺癌转移的检测。
作者 刘波 王伟
出处 《中国老年学杂志》 CAS CSCD 北大核心 2007年第4期328-330,共3页 Chinese Journal of Gerontology
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