Cited by 354Genomics and Chromatin DynamicsGenetic Associations and EpidemiologyGenetic Mapping and Diversity in Plants and Animals

Shared genetic effects on chromatin and gene expression indicate a role for enhancer priming in immune response

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HIPSCI Consortium, Alasoo, Kaur, Rodrigues, Julia, Mukhopadhyay, Subhankar, Knights, Andrew J., Mann, Alice L., Kundu, Kousik, Hale, Christine +2 more·2018·Nature Genetics

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Abstract

Regulatory variants are often context specific, modulating gene expression in a subset of possible cellular states. Although these genetic effects can play important roles in disease, the molecular mechanisms underlying context specificity are poorly understood. Here, we identified shared quantitative trait loci (QTLs) for chromatin accessibility and gene expression in human macrophages exposed to IFNγ, Salmonella and IFNγ plus Salmonella. We observed that ~60% of stimulus-specific expression QTLs with a detectable effect on chromatin altered the chromatin accessibility in naive cells, thus suggesting that they perturb enhancer priming. Such variants probably influence binding of cell-type-specific transcription factors, such as PU.1, which can then indirectly alter the binding of stimulus-specific transcription factors, such as NF-κB or STAT2. Thus, although chromatin accessibility assays are powerful for fine-mapping causal regulatory variants, detecting their downstream effects on gene expression will be challenging, requiring profiling of large numbers of stimulated cellular states and time points.

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Authors
HIPSCI Consortium, Alasoo, K., Rodrigues, J., Mukhopadhyay, S., Knights, A. J., Mann, A. L., Kundu, K., Hale, C., Dougan, G., & Gaffney, D. J.
Affiliations
  • Wellcome Sanger Institute (GB)
  • University of Cambridge (GB)
Corresponding author
  • Alasoo, Kaur
  • Gaffney, Daniel J.
Venue
Nature Genetics
Published
2018-01-29
Volume
50
Issue
3
Pages
424-431
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2785443776
Cited by
338
References
74
Citations by year
2026: 37 · 2025: 45 · 2024: 50 · 2023: 45 · 2022: 35 · 2021: 48 · 2020: 36 · 2019: 33 · 2018: 7 · 2017: 2
FWCI
11.29
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • Apollo
Funders
  • Life Technologies Corporation
  • Wellcome Trust (WT099754, 098503, WT 098051, 098051)
  • LifeArc
  • Eesti Teadusagentuur
  • Medical Research Council (MC_PC_12026)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
Keywords
chromatin accessibility, expression quantitative trait loci, macrophages, interferon-gamma, Salmonella, immune response, regulatory variants, PU.1, NF-κB, STAT2, transcription factor binding, quantitative trait loci
MeSH terms
Cells, Cultured, Chromatin, Enhancer Elements, Genetic, Female, Humans, Immunity, Cellular, Macrophages, Male, Protein Binding, Salmonella Infections, Salmonella typhimurium, Transcription Factors, Gene Expression, Quantitative Trait Loci

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