摘要
目的探讨Met基因单核苷酸多态性(single nucleotide polymorphism,SNP)与肝癌易感性的关系,以及与广西地区人群肝细胞癌(简称肝癌)遗传易感性的关系,为肝癌的早期诊断和治疗提供科学依据。方法采用以医院为基础的病例对照研究,收集2007—01-01—2011-04-30入住广西医科大学第一附属医院(317例)、广西医科大学附属肿瘤医院(500例)和桂林医学院附属医院(200例)的肝癌患者共1017例,以及同期上述医院的非肿瘤患者1060例(分别为360、500和200例)。采用Sequenom MassARRAY基因分型技术检测Met基因4个SNPs位点(rs41739A〉G、rs6566G〉A、rs38840C〉T和rs1621A〉G)的基因型,并运用多因素非条件Logistic回归模型计算不同基因型比值比(oddsrati—OS,OR)及其95%可信区间(95%confidence intervals,95%CI),分析各SNP位点与肝癌易感性的关系。结果在Met基因rs1621位点上,与携带纯合野生基因型AA的个体相比,携带突变基因型GG的个体罹患肝癌的风险下降了76%(校正OR=0.24,95%CI为0.06~0.99,P=0.048),但携带基因型GA个体与肝癌的患病风险之间无关联(校正OR=1.36,95%CI为0.97~1.89,P=0.072)。未发现Met基因其他候选位点多态性(rs41739A〉G、rs6566G〉A和rs38840C〉T)与肝癌易感性有关联,P〉0.05。结论在广西地区人群中,Met基因rs1621位点可能与肝癌的易感性有关联,携带Met基因rs1621位点GG基因型的个体罹患肝癌的风险减小。
OBJECTIVE To explore the relationship between single nucleotide polymorphisms (SNPs) of Met and susceptibitity to hepatocellular carcinoma (HCC) in Guangxi, and provide the scientific basis for early diagnosis and treatment of HCC. METHODS A hospital-based case-control study was conducted in 1 017 patients with HCC from Jan. 1, 2007 to Apr. 30, 2011 in First Affiliated Hospital of Guangxi Medical University (317), Affiliated Tumor Hospital of Guangxi Medical University (500) and Affiliated Hospital of Guilin Medical University (200), with 1 060 cance-free matched controls(360, 500 and 200, respectively). The four candidate SNPs (rs41739 A〉G, rs6566 G〉A, rs38840 C 〉T, rs1621 A〉G) in Met were detected by Sequenom Mass ARRAY platform and multivariate Logistic regression analysis was applied to estimate odds ratios (ORs) and 95 % confidence intervals (CIs) for the associations between genotypes and HCC risk. RESULTS The individuals with homozygous wild genotype GG at rs1621 in Met was significantly associated with decreased risk of hepatocellular carcinoma when compared with wild-type genotype AA (adjusted OR= 0.24, 95GCI:0.06-0. 99,P=0.048). The genotype GA did not affect the susceptibility of HCC (adjusted OR= 1. 36, 95 % CI : 0.97- 1.89, P = 0. 072). No statistically significant correlations in the other three SNPs (rs41739 A〉G, rs6566 G〉A,rs38840 C〉T) and the risk of HCC were found(P〉0. 05). CONCLUSION Met rs1621 (A〉G) polymorphism may contribute to HCC susceptibility, and the genotype GG may decrease the risk of HCC in Guangxi.
出处
《中华肿瘤防治杂志》
CAS
北大核心
2015年第21期1649-1653,共5页
Chinese Journal of Cancer Prevention and Treatment
基金
国家自然科学基金(81460516)
广西高校科研项目(ZD2014093)
广西高校大学生创新计划(0300JG201409022)
关键词
肝肿瘤
肝细胞癌
易感性
Met基因
单核苷酸多态性
liver neoplasms
hepatocellular carcinoma
susceptibility
Met gene
single nucleotide polymorphism