核苷酸切除修复交叉互补组基因1单核苷酸多态性与晚期非小细胞肺癌患者铂类药物化疗预后的关系  被引量:7

Relationgship of genetic polymorphisms of ERCC1 with the clinical prognosis to platin-based chemotherapy in patients with advanced non-small cell lung cancer

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作  者:周国仁[1] 叶劲军[2] 冯继锋[1] 陆建伟[1] 蒋春莲[3] 

机构地区:[1]江苏省肿瘤医院肿瘤内科,南京210009 [2]江苏省肿瘤医院放疗科,南京210009 [3]南京医科大学附属南京医院(南京市第一医院)病理科

出  处:《肿瘤研究与临床》2013年第8期523-526,共4页Cancer Research and Clinic

基  金:江苏省卫生厅科研项目(P200910)

摘  要:目的 探讨核苷酸切除修复交叉互补组基因1(ERCC1)单核苷酸多态性(SNP)与非小细胞肺癌(NSCLC)铂类药物化疗后预后的关系。方法 204例经病理学确诊的晚期 NSCLC 患者接受铂类药物化疗前,抽取外周血,提取DNA,采用基质辅助激光解析电离飞行时间质谱(MALDI-TOF-MS)法检测ERCC1第118位密码子[ERCC1(118)] 的基因型,并随机抽取5 %的样本进行基因测序来验证该方法的准确性。比较不同基因型与铂类药物化疗后患者生存期的关系。结果 204例NSCLC患者中,部分缓解 61 例,疾病稳定 116 例,疾病进展 27 例;有效率为 29.9 %(61/204)。携带ERCC1(118)C/C、C/T + T/T 基因型的NSCLC患者铂类化疗后有效率分别为24.0 % (29/121)和38.6 % (32/83),两者间比较差异有统计学意义(P<0.05)。ERCC1(118)C/T 基因型患者对顺铂类药物的敏感性是C/C基因型患者的1.992倍(95 %可信区间:1.083~3.650,P=0.025)。携带ERCC1(118)C/C、C/T + T/T 基因型的NSCLC患者铂类化疗后中位生存期、1年生存率、2年生存率分别为9.0个月、34.7 %(42/121)、4.1 %(5/121)和12.0个月、60.2 %(50/83)、12.0 %(10/83),两者间比较差异均有统计学意义(P<0.05)。结论 ERCC1(118)基因多态性与晚期NSCLC 患者铂类药物化疗后的生存期有相关性,有可能成为铂类药物化疗后生存期的预测指标。Objective To investigate the relationship between genetic polymorphisms of ERCC1 and survival rate in advanced non-small cell lung cancer (NSCLC) patients treated with platinum based chemotherapy. Methods A total of 204 patients with advanced NSCLC were routinely treated by platin-based chemotherapy. The polymorphic genotypes were analyzed by MALDI-TOF-MS method using DNA samples isolated from peripheral blood before treatment. Besides, 5 % samples were extracted randomly for sequencing to test the accuracy of this method. To explored the association between SNP of ERCC1 (118) and prognosis to platinum-based chemotherapy in advanced NSCLC patients. Results Among 204 patients, 61 achieved partial response, 116 achieved stable response, and 27 achieved progressive disease. The overall response rate was 29.9 % (61/204). The effective rates of patients with the ERCC1 (118) C/C genotype, C/T + T/T genotype were 24.0 % (29/121) and 38.6 % (32/83), respectively, with significant difference (P 〈 0.05). The response rate of ERCC1 (118) C/T allele carriers was 1.992-fold than that of C/C allele carriers (95 % confidence interval: 1.083-3.650, P = 0.025). MST, 1-year survival and 2-year survival rates of patients with the ERCC1 (118) C/C genotype, C/T + T /T genotype were 9.0 months, 34.7 % (42/121) and 4.1 % (5/121) vs 12.0 months, 60.2 % (50/83) and 12.0 % (10/83), respectively, with significant difference (P 〈 0.05). Conclusions Polymorphisms of ERCC1 might be associated with overall survival period in patients with advanced NSCLC after treatment with platin-based chemotherapy, which might be the predictive markers for overall survival.

关 键 词:多态性 单核苷酸 基因型  非小细胞肺 铂类药物联合化疗 生存期 

分 类 号:R734.2[医药卫生—肿瘤]

 

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