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Genetic variants in MARCO are associated with the susceptibility to pulmonary tuberculosis in Chinese Han population.


ABSTRACT: BACKGROUND: Susceptibility to tuberculosis is not only determined by Mycobacterium tuberculosis infection, but also by the genetic component of the host. Macrophage receptor with a collagenous structure (MARCO) is essential components required for toll like receptor-signaling in macrophage response to Mycobacterium tuberculosis, which may contribute to tuberculosis risk. PRINCIPAL FINDINGS: To specifically investigated whether single nucleotide polymorphisms (SNPs) in MARCO gene are associated with pulmonary tuberculosis in Chinese Han population. By selecting tagging SNPs in MARCO gene, 17 tag SNPs were identified and genotyped in 923 pulmonary tuberculosis patients and 1033 healthy control subjects using a hospital based case-control association study. Single-point and haplotype analysis revealed an association in intron and exon region of MARCO gene. One SNP (rs17009726) was associated with susceptibility to pulmonary tuberculosis, where the carriers of the G allele had a 1.65 fold (95% CI?=?1.32-2.05, p(corrected)?=?9.27E-5) increased risk of pulmonary tuberculosis. Haplotype analysis revealed that haplotype GC containing G allele of 17009726 and haplotype TGCC (rs17795618T/A, rs1371562G/T, rs6761637T/C, rs2011839C/T) were also associated with susceptibility to pulmonary tuberculosis (p(corrected)?=?0.0001 and 0.029, respectively). CONCLUSIONS: Our study suggested that genetic variants in MARCO gene were associated with pulmonary tuberculosis susceptibility in Chinese Han population, and the findings emphasize the importance of MARCO mediated immune responses in the pathogenesis of tuberculosis.

SUBMITTER: Ma MJ 

PROVIDER: S-EPMC3160327 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature

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Genetic variants in MARCO are associated with the susceptibility to pulmonary tuberculosis in Chinese Han population.

Ma Mai-Juan MJ   Wang Hai-Bing HB   Li Hao H   Yang Jun-Hai JH   Yan Yan Y   Xie Lan-Pin LP   Qi Ying-Cheng YC   Li Jun-Lian JL   Chen Mei-Juan MJ   Liu Wei W   Cao Wu-Chun WC  

PloS one 20110823 8


<h4>Background</h4>Susceptibility to tuberculosis is not only determined by Mycobacterium tuberculosis infection, but also by the genetic component of the host. Macrophage receptor with a collagenous structure (MARCO) is essential components required for toll like receptor-signaling in macrophage response to Mycobacterium tuberculosis, which may contribute to tuberculosis risk.<h4>Principal findings</h4>To specifically investigated whether single nucleotide polymorphisms (SNPs) in MARCO gene are  ...[more]

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