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人肺癌细胞株化疗敏感性与基因表达的关系[J]. 肿瘤防治研究, 2006, 33(01): 1-4. DOI: 10.3971/j.issn.1000-8578.1573
引用本文: 人肺癌细胞株化疗敏感性与基因表达的关系[J]. 肿瘤防治研究, 2006, 33(01): 1-4. DOI: 10.3971/j.issn.1000-8578.1573
The Chemotherapy Sensitivity and Gene Expression in Lung Cancer Cell Lines[J]. Cancer Research on Prevention and Treatment, 2006, 33(01): 1-4. DOI: 10.3971/j.issn.1000-8578.1573
Citation: The Chemotherapy Sensitivity and Gene Expression in Lung Cancer Cell Lines[J]. Cancer Research on Prevention and Treatment, 2006, 33(01): 1-4. DOI: 10.3971/j.issn.1000-8578.1573

人肺癌细胞株化疗敏感性与基因表达的关系

The Chemotherapy Sensitivity and Gene Expression in Lung Cancer Cell Lines

  • 摘要: 目的探讨人肺癌细胞株对化疗药物的敏感性与多药耐药相关基因和凋亡调控基因表达的关系。方法采用MTT法检测5株肺癌细胞SPCA1、NCI-H446、SH-77、95C和95D对阿霉素(ADM)、顺铂(DDP)、丝裂霉素(MMC)、5-氟尿嘧啶(5-Fu)、卡氮芥(BCNU)的敏感性。流式细胞术检测多药耐药基因P-糖蛋白(P-gp)、谷胱甘肽-S-转移酶-π(GST-π)、肺耐药蛋白(LRP)、多药耐药相关蛋白(MRP)和甲基鸟嘌呤甲基转移酶(MGMT)等耐药相关基因和Fas、bcl-2、p53和p16等凋亡调控基因的表达。结果不同肺癌细胞株对同一药物敏感性有较大差异。相关分析显示,肺癌细胞株对MMC的敏感性与GST-π和bcl-2的表达呈负相关,P值分别为0.040和0.030,GST-π和bcl-2的表达水平较高者,MMC的IC50较高,敏感性较低;对DDP的敏感性与p53蛋白表达水平呈负相关(P=0.036);对其余药物的敏感性与所检基因的表达水平无关(P>0.05)。结论人肺癌细胞株对不同化疗药物敏感与否有不同的机制,对MMC的敏感性与GST-π和bcl-2的表达有关,对DDP的敏感性与p53的表达有关。

     

    Abstract: Objective To explore the relationship of chemotherapy sensitivity and expression of multidrug resistance genes and apoptosis regulation genes in human lung cancer cell lines. Methods MTT method was used to detect the sensitivity on adriamycin(ADM),cisplatinum(DDP), mitomycin C(MMC), fluorouracilum(5-Fu),carmustine(BCNU) in five lung cancer cell lines including SPCA1、NCI-H446、 SH-77、95C and 95D. Multidrug resistance genes including P-glycoprotein(P-gp), Glutsthione-s-transferases-π (GST-π), Lung resistance pr...

     

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