Abstract

背景与目的目前药物代谢酶遗传多态性与化疗疗效关系的研究结果多不一致,本研究旨在探讨细胞色素P4501A1(cytochrome P450 1A1, CYP1A1)、2E1(cytochrome P450 2E1, CYP2E1)、2D6(cytochrome P450 2D6, CYP2D6)和谷胱甘肽硫转移酶M1(glutathione S-transferase M1, GSTM1)基因多态性与晚期非小细胞肺癌化疗疗效以及与肺癌患者预后的关系。方法采用PCR和PCR-RFLP技术对肺癌患者4种药物代谢酶基因分型,并对他们进行5年跟踪随访。结果携带B型CYP1A1和缺陷性GSTM1肺癌患者比其它基因型患者化疗疗效好(P < 0.001)。携带A型CYP1A1肺癌患者接受非铂类化疗药物治疗比B型和C型患者疗效好(P=0.041); 携带缺陷性GSTM1肺癌患者接受铂类化疗药物治疗疗效比功能型患者疗效好(P=0.011)。4种酶对晚期非小细胞肺癌患者总生存期(overall survival, OS)没有明显影响(P > 0.05)。结论A型CYP1A1肺癌患者接受非铂类化疗药物治疗比B型和C型患者疗效好; 缺陷性GSTM1肺癌患者接受铂类化疗药物治疗比功能型患者疗效好。4种酶基因多态对晚期非小细胞肺癌患者OS影响没有明显统计学差异。

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