Work

Chromosome contacts in activated T cells identify autoimmune disease candidate genes

Year: 2017
Type: preprint
Abstract: Background 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. Results Within four hours, 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. Conclusions 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.
Language: English
Open Access status: green
OpenAlex ID: W2571755945
Cites: 86
Cited by: 20
Related to: 10