Chromosome contacts in activated T cells identify autoimmune disease candidate genes.

Chromosome contacts in activated T cells identify autoimmune disease candidate genes.
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DOI:
10.1186/s13059-017-1285-0
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发表时间:
2017-09-04
期刊:
影响因子:
12.3
通讯作者:
Wallace C
Wallace C
中科院分区:
生物学1区
文献类型:
--
作者:
Burren OS;Rubio García A;Javierre BM;Rainbow DB;Cairns J;Cooper NJ;Lambourne JJ;Schofield E;Castro Dopico X;Ferreira RC;Coulson R;Burden F;Rowlston SP;Downes K;Wingett SW;Frontini M;Ouwehand WH;Fraser P;Spivakov M;Todd JA;Wicker LS;Cutler AJ;Wallace C

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Autoimmune disease-associated variants are preferentially found in regulatory regions in immune cells, particularly CD4+ T cells. Linking such regulatory regions to gene promoters in disease-relevant cell contexts facilitates identification of candidate disease genes. Within 4 h, activation of CD4+ T cells invokes changes in histone modifications and enhancer RNA transcription that correspond to altered expression of the interacting genes identified by promoter capture Hi-C. By integrating promoter capture Hi-C data with genetic associations for five autoimmune diseases, we prioritised 245 candidate genes with a median distance from peak signal to prioritised gene of 153 kb. Just under half (108/245) prioritised genes related to activation-sensitive interactions. This included IL2RA, where allele-specific expression analyses were consistent with its interaction-mediated regulation, illustrating the utility of the approach. Our systematic experimental framework offers an alternative approach to candidate causal gene identification for variants with cell state-specific functional effects, with achievable sample sizes. The online version of this article (doi:10.1186/s13059-017-1285-0) contains supplementary material, which is available to authorized users.
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