项目名称: 中国汉族人贲门失弛缓症遗传易感位点全基因组关联分析及功能验证
项目编号: No.81470811
项目类型: 面上项目
立项/批准年度: 2015
项目学科: 医药、卫生
项目作者: 周平红
作者单位: 复旦大学
项目金额: 73万元
中文摘要: 贲门失弛缓症是一种病因不明的少见疾病。西方研究提示基因单核苷酸多态性(SNP)与其发病相关,但在中国人群中缺乏全面的搜寻和系统研究。课题组是国内最大的贲门失弛缓症诊治中心之一,大规模临床病例为应用全基因组关联分析(GWAS)在全基因组范围内对遗传易感位点进行筛查奠定基础;前期采用芯片技术已完成30例患者和30例对照的全基因组SNP分型。在此基础上,我们拟:①在中国汉族人群中进行一项两阶段(初筛阶段和验证阶段)的病例-对照GWAS研究,筛选出新的、人群特异的遗传易感位点;②推测遗传易感位点所指向的易感基因,在转录和翻译水平进行验证,确定新的贲门失弛缓症发病易感基因。由此为将治疗措施由目前的对症转向对因提供潜在靶点。
中文关键词: 贲门失弛缓症;全基因组关联分析;遗传易感位点;中国汉族人
英文摘要: Idiopathic achalasia is a rare disease with unclear etiology. Researches in the western population indicate that the etiology may be related to the genome single nucleotide polymorphism (SNP). However, the similar study stays vacuum in the Chinese population. As one of the major clinics for achlasia in China, our plenty of clinical samples make the genome-wide association study (GWAS) possible. In our preliminary study, 30 samples from achalasia and 30 form controls had been successfully genotyped using SNP chips. In this study, we aim to: ① conduct a two stage GWAS (including discovery and validation stage) in the Chinese Han population to screen and indentify the novel, population-specific susceptibility loci for achalasia; ②speculate the susceptibility genes, and verify on the transcription and translation levels. Thus, our results will provide a potential target for etiological treatment of achalasia.
英文关键词: idiopathic achalasia;genome-wide association study;susceptibility loci;Chinese Han population