Cited by 52Genetic Associations and EpidemiologyT-cell and B-cell ImmunologyRheumatoid Arthritis Research and Therapies

Regulation of Gene Expression in Autoimmune Disease Loci and the Genetic Basis of Proliferation in CD4+ Effector Memory T Cells

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Hu, Xinli, Kim, Hyun, Raj, Towfique, Brennan, Patrick J., Trynka, Gosia, Teslovich, Nikola, Slowikowski, Kamil, Chen, Wei-Min +7 more·2014·PLoS Genetics

Abstract

Genome-wide association studies (GWAS) and subsequent dense-genotyping of associated loci identified over a hundred single-nucleotide polymorphism (SNP) variants associated with the risk of rheumatoid arthritis (RA), type 1 diabetes (T1D), and celiac disease (CeD). Immunological and genetic studies suggest a role for CD4-positive effector memory T (CD+ TEM) cells in the pathogenesis of these diseases. To elucidate mechanisms of autoimmune disease alleles, we investigated molecular phenotypes in CD4+ effector memory T cells potentially affected by these variants. In a cohort of genotyped healthy individuals, we isolated high purity CD4+ TEM cells from peripheral blood, then assayed relative abundance, proliferation upon T cell receptor (TCR) stimulation, and the transcription of 215 genes within disease loci before and after stimulation. We identified 46 genes regulated by cis-acting expression quantitative trait loci (eQTL), the majority of which we detected in stimulated cells. Eleven of the 46 genes with eQTLs were previously undetected in peripheral blood mononuclear cells. Of 96 risk alleles of RA, T1D, and/or CeD in densely genotyped loci, eleven overlapped cis-eQTLs, of which five alleles completely explained the respective signals. A non-coding variant, rs389862A, increased proliferative response (p=4.75 × 10-8). In addition, baseline expression of seventeen genes in resting cells reliably predicted proliferative response after TCR stimulation. Strikingly, however, there was no evidence that risk alleles modulated CD4+ TEM abundance or proliferation. Our study underscores the power of examining molecular phenotypes in relevant cells and conditions for understanding pathogenic mechanisms of disease variants.

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Authors
Hu, X., Kim, H., Raj, T., Brennan, P. J., Trynka, G., Teslovich, N., Slowikowski, K., Chen, W.-M., Onengut, S., Baecher-Allan, C., De Jager, P. L., Rich, S. S., Stranger, B. E., Brenner, M. B., & Raychaudhuri, S.
Affiliations
  • Broad Institute (US)
  • Brigham and Women's Hospital (US)
  • University of Virginia (US)
  • University of Chicago (US)
Corresponding author
Raychaudhuri, Soumya
Venue
PLoS Genetics
Published
2014-06-26
Volume
10
Issue
6
Pages
e1004404
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W1975528320
Cited by
52
References
36
Citations by year
2026: 2 · 2024: 2 · 2023: 2 · 2022: 4 · 2021: 8 · 2020: 7 · 2019: 4 · 2018: 5 · 2017: 5 · 2016: 6 · 2015: 6 · 2014: 1
FWCI
3.94
Type
journal article
Language
en
Open access
Locations
  • PLoS Genetics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • Knowledge@UChicago (University of Chicago) (submittedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • Research Explorer (The University of Manchester) (submittedVersion)
  • University of Chicago (cc-by)
Funders
  • National Multiple Sclerosis Society
  • Arthritis Foundation
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek
  • National Institutes of Health (UL1TR000430, 1r01ar063759-01a1, 1R01‐AR‐063759)
  • National Human Genome Research Institute (T32HG002295)
  • National Institute of Allergy and Infectious Diseases (R01AI097128, TR01 AI097128)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (1R01AR063759-01A1, R01-AR063759)
  • National Center for Advancing Translational Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
Keywords
CD4+ effector memory T cells, gene expression regulation, cis-eQTL, rheumatoid arthritis, type 1 diabetes, celiac disease, single nucleotide polymorphisms, T cell proliferation, T cell receptor stimulation, disease risk alleles, transcriptional response
MeSH terms
Arthritis, Rheumatoid, Autoimmune Diseases, Celiac Disease, Diabetes Mellitus, Type 1, Gene Expression Regulation, Genotype, Humans, Phenotype, Receptors, Antigen, T-Cell, CD4-Positive T-Lymphocytes, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Quantitative Trait Loci, Cell Proliferation, Genome-Wide Association Study

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