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作 者:刘文辉[1] 李晓玲[1] 袁萍[1] 栾荣生[1] 冯斐[1] 胡晓琴[1] 燕锦[2] 杨艳芳[1]
机构地区:[1]四川大学华西公共卫生学院流行病与卫生统计学系 [2]四川省肿瘤医院肠道外科,四川成都610041
出 处:《山东大学学报(医学版)》2014年第11期106-112,共7页Journal of Shandong University:Health Sciences
基 金:国家自然科学基金(81102196);教育部博士点专项科研基金(20090181120019)
摘 要:目的:探讨脂联素基因(ADIPOQ)rs2241766和 rs1501299、钙蛋白酶10基因(CAPN-10)rs3842570和rs3792267多态性以及基因之间的交互作用与结直肠癌发生风险的关系。方法采用1∶1匹配的病例对照研究,对400例经组织病理学确诊的结直肠癌原发、新发病例和400例同期未患结直肠癌的健康体检者进行问卷调查,收集两组研究对象的一般情况、生活方式及饮食习惯等资料。应用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)分析法检测研究对象ADIPOQ(rs2241766和rs1501299)和CAPN-10(rs3842570和rs3792267)的基因型。采用条件logistic回归模型分析4个位点的基因多态性与结直肠癌发生风险的关系,并应用GMDR法分析4个位点间的交互作用。结果 ADIPOQ rs2241766 TG+GG基因型携带者结直肠癌发生风险较TT型携带者高(OR=1.354,95%CI:1.004~1.827),rs1501299 GT+TT基因型携带者结直肠癌发生风险较 GG型携带者低(OR=0.680,95%CI:0.501~0.923);CAPN-10 rs3792267 GA+AA基因型携带者较GG型携带者结直肠癌发生风险高(OR=1.507,95%CI:1.009~2.250),未见 rs3842570 Del/Ins+Ins/Ins基因型与结直肠癌的发生风险有关(OR=1.345,95%CI:0.849~2.130)。GMDR法分析结果显示,4个位点在结直肠癌的发生中可能存在交互作用(P=0.001)。趋势χ2分析结果表明,风险基因型携带个数与结直肠癌发生风险之间存在剂量-反应关系(χ2=13.302,P<0.001)。结论 ADIPOQ(rs2241766和rs1501299)和CAPN-10 rs3792267多态性可能与结直肠癌的发生风险有关,4个位点间可能存在交互作用,共同影响结直肠癌的发生。Objective To explore the associations of ADIPOQ (rs2241766,rs1501299)and CAPN-10 (rs3842570, rs3792267)polymorphisms and gene-gene interaction with the risk of colorectal cancer(CRC).Methods A 1∶1 matched case-control study was conducted to collect the demographic features,lifestyle,and dietary habits of 400 pa-tients with newly histopathologically diagnosed CRC and 400 matched health controls.Polymerase chain reaction-restric-tion fragment length polymorphism (PCR-RFLP ) was used to detect the genotypes of ADIPOQ (rs2241766, rs1501299)and CAPN-10 (rs3842570,rs3792267).Conditional logistic regression was used to analyze the association of genetic polymorphisms of the 4 SNPs and CRC risk.Generalized multifactor dimensionality reduction (GMDR)was applied to test the gene-gene interaction on CRC risk.Results Compared with the wild genotypes,subjects carrying ADIPOQ rs2241766 TG +GG genotype and CAPN-10 rs3792267 GA +AA genotype had the increased CRC risk (rs2241766:OR=1.354,95%CI:1.004-1.827;rs3792267:OR=1.507,95%CI:1.009-2.250),while those car-rying ADIPOQ rs1501299 GT+TT genotype had an decreased CRC risk (OR=0.680,95%CI:0.501-0.923).The association between CAPN-10 rs3842570 Del/Ins+Ins/Ins genotype and CRC risk was not significant (OR=1.345, 95%CI:0.849-2.130).The GMDR showed that the gene-gene interaction among the 4 locus on CRC risk was signifi-cant (P=0.001).A significant dosage effect with an increasing number of risk genotypes was observed as the risk of CRC increased (χ2 =13.302,P〈0.001 ).Conclusion ADIPOQ rs2241766,ADIPOQ rs1501299,and CAPN-10 rs3792267 are associated with the risk of CRC,and the 4 locus might affect the risk of CRC together.
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