Genome-wide association study identifies two risk loci for tuberculosis in Han Chinese.

Genome-wide association study identifies two risk loci for tuberculosis in Han Chinese.
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全基因组关联研究确定了汉族人结核病的两个危险位点

DOI:
10.1038/s41467-018-06539-w
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发表时间:
2018-10-04
影响因子:
16.6
通讯作者:
Ge B
Ge B
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Zheng R;Li Z;He F;Liu H;Chen J;Chen J;Xie X;Zhou J;Chen H;Wu X;Wu J;Chen B;Liu Y;Cui H;Fan L;Sha W;Liu Y;Wang J;Huang X;Zhang L;Xu F;Wang J;Feng Y;Qin L;Yang H;Liu Z;Cui Z;Liu F;Chen X;Gao S;Sun S;Shi Y;Ge B

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结核病是由结核分枝杆菌(Mycobacterium tuberculosis,Mtb)引起的一种传染性疾病,是一个严重的公共卫生问题。以前的研究已经确定了宿主的遗传因素,有助于结核病感染的结果。然而,结核病的大部分遗传力仍然没有得到解释,而且很可能存在其他易感基因座。我们对2949例中国汉族肺结核患者和5090例健康对照进行了多阶段全基因组关联研究(833例患者和1220例对照进行了全基因组基因分型)。我们发现了两个风险位点:14q24.3(rs12437118,Pcombined= 1.72 × 10−11,OR = 1.277,ESRRB)和20p13(rs6114027,Pcombined= 2.37 × 10−11,OR = 1.339,TGM6)。此外,我们确定rs6114027危险等位基因与肺结核患者和肺结核病复发者PBMC中TGM6转录水平降低有关。此外,我们发现,attgm6基因缺陷小鼠更容易受到结核分枝杆菌感染。我们的研究结果为结核病的遗传病因学提供了新的见解。
Tuberculosis (TB) is an infectious disease caused byMycobacterium tuberculosis(Mtb), and remains a leading public health problem. Previous studies have identified host genetic factors that contribute toMtbinfection outcomes. However, much of the heritability in TB remains unaccounted for and additional susceptibility loci most likely exist. We perform a multistage genome-wide association study on 2949 pulmonary TB patients and 5090 healthy controls (833 cases and 1220 controls were genome-wide genotyped) from Han Chinese population. We discover two risk loci: 14q24.3 (rs12437118,Pcombined= 1.72 × 10−11, OR = 1.277,ESRRB) and 20p13 (rs6114027,Pcombined= 2.37 × 10−11, OR = 1.339,TGM6). Moreover, we determine that the rs6114027 risk allele is related to decreasedTGM6transcripts in PBMCs from pulmonary TB patients and severer pulmonary TB disease. Furthermore, we find thattgm6-deficient mice are more susceptible toMtbinfection. Our results provide new insights into the genetic etiology of TB.
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