Genetic variants regulating immune cell levels in health and disease.

Genetic variants regulating immune cell levels in health and disease.
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DOI:
10.1016/j.cell.2013.08.041
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发表时间:
2013-09-26
期刊:
影响因子:
64.5
通讯作者:
Cucca F
Cucca F
中科院分区:
生物学1区
文献类型:
--
作者:
Orrù V;Steri M;Sole G;Sidore C;Virdis F;Dei M;Lai S;Zoledziewska M;Busonero F;Mulas A;Floris M;Mentzen WI;Urru SA;Olla S;Marongiu M;Piras MG;Lobina M;Maschio A;Pitzalis M;Urru MF;Marcelli M;Cusano R;Deidda F;Serra V;Oppo M;Pilu R;Reinier F;Berutti R;Pireddu L;Zara I;Porcu E;Kwong A;Brennan C;Tarrier B;Lyons R;Kang HM;Uzzau S;Atzeni R;Valentini M;Firinu D;Leoni L;Rotta G;Naitza S;Angius A;Congia M;Whalen MB;Jones CM;Schlessinger D;Abecasis GR;Fiorillo E;Sanna S;Cucca F

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免疫系统中由特殊细胞和分子组成的复杂网络已经进化到能够防御病原体,但免疫系统无意中攻击“自身”会导致自身免疫性疾病。免疫细胞水平的遗传调控及其与自身免疫的关系在很大程度上尚未确定。在这里,我们报告了来自撒丁岛四个聚集村庄的 1,629 名个体的 95 种细胞类型(涵盖 272 种免疫特征)的数量水平的遗传贡献。我们首先估计了性状遗传力,表明它可能很大,占方差的高达 87%(平均值为 41%)。接下来,通过评估我们在 2,870 名个体中识别并确认的约 820 万个变异,13 个基因座上的 23 个独立变异与至少一个性状相关。值得注意的是,三个基因座(HLA、IL2RA 和 SH2B3/ATXN2)的变异与已知的自身免疫性疾病关联重叠。这些结果将特定的细胞表型与特定的遗传变异联系起来,有助于阐明它们与疾病的关系。
The complex network of specialized cells and molecules in the immune system has evolved to defend against pathogens, but inadvertent immune system attacks on “self” result in autoimmune disease. Both genetic regulation of immune cell levels and their relationships with autoimmunity are largely undetermined. Here, we report genetic contributions to quantitative levels of 95 cell types encompassing 272 immune traits, in a cohort of 1,629 individuals from four clustered Sardinian villages. We first estimated trait heritability, showing that it can be substantial, accounting for up to 87% of the variance (mean 41%). Next, by assessing ~8.2 million variants that we identified and confirmed in an extended set of 2,870 individuals, 23 independent variants at 13 loci associated with at least one trait. Notably, variants at three loci (HLA, IL2RA, and SH2B3/ATXN2) overlap with known autoimmune disease associations. These results connect specific cellular phenotypes to specific genetic variants, helping to explicate their involvement in disease.
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