Pathogenic implications for autoimmune mechanisms derived by comparative eQTL analysis of CD4+ versus CD8+ T cells

Inappropriate activation or inadequate regulation of CD4+ and CD8+ T cells may contribute to the initiation and progression of multiple autoimmune and inflammatory diseases. Studies on disease-associated genetic polymorphisms have highlighted the importance of biological context for many regulatory...

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Main Authors: Kasela, S, Kisand, K, Tserel, L, Kaleviste, E, Remm, A, Fischer, K, Esko, T, Westra, H, Fairfax, B, Makino, S, Knight, J, Franke, L, Metspalu, A, Peterson, P, Milani, L
Format: Journal article
Language:English
Published: Public Library of Science 2017
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author Kasela, S
Kisand, K
Tserel, L
Kaleviste, E
Remm, A
Fischer, K
Esko, T
Westra, H
Fairfax, B
Makino, S
Knight, J
Franke, L
Metspalu, A
Peterson, P
Milani, L
author_facet Kasela, S
Kisand, K
Tserel, L
Kaleviste, E
Remm, A
Fischer, K
Esko, T
Westra, H
Fairfax, B
Makino, S
Knight, J
Franke, L
Metspalu, A
Peterson, P
Milani, L
author_sort Kasela, S
collection OXFORD
description Inappropriate activation or inadequate regulation of CD4+ and CD8+ T cells may contribute to the initiation and progression of multiple autoimmune and inflammatory diseases. Studies on disease-associated genetic polymorphisms have highlighted the importance of biological context for many regulatory variants, which is particularly relevant in understanding the genetic regulation of the immune system and its cellular phenotypes. Here we show cell type-specific regulation of transcript levels of genes associated with several autoimmune diseases in CD4+ and CD8+ T cells including a trans-acting regulatory locus at chr12q13.2 containing the rs1131017 SNP in the RPS26 gene. Most remarkably, we identify a common missense variant in IL27, associated with type 1 diabetes that results in decreased functional activity of the protein and reduced expression levels of downstream IRF1 and STAT1 in CD4+ T cells only. Altogether, our results indicate that eQTL mapping in purified T cells provides novel functional insights into polymorphisms and pathways associated with autoimmune diseases.
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spelling oxford-uuid:654cc875-00bc-4b75-b525-90d5d84341992022-03-26T18:24:44ZPathogenic implications for autoimmune mechanisms derived by comparative eQTL analysis of CD4+ versus CD8+ T cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:654cc875-00bc-4b75-b525-90d5d8434199EnglishSymplectic Elements at OxfordPublic Library of Science2017Kasela, SKisand, KTserel, LKaleviste, ERemm, AFischer, KEsko, TWestra, HFairfax, BMakino, SKnight, JFranke, LMetspalu, APeterson, PMilani, LInappropriate activation or inadequate regulation of CD4+ and CD8+ T cells may contribute to the initiation and progression of multiple autoimmune and inflammatory diseases. Studies on disease-associated genetic polymorphisms have highlighted the importance of biological context for many regulatory variants, which is particularly relevant in understanding the genetic regulation of the immune system and its cellular phenotypes. Here we show cell type-specific regulation of transcript levels of genes associated with several autoimmune diseases in CD4+ and CD8+ T cells including a trans-acting regulatory locus at chr12q13.2 containing the rs1131017 SNP in the RPS26 gene. Most remarkably, we identify a common missense variant in IL27, associated with type 1 diabetes that results in decreased functional activity of the protein and reduced expression levels of downstream IRF1 and STAT1 in CD4+ T cells only. Altogether, our results indicate that eQTL mapping in purified T cells provides novel functional insights into polymorphisms and pathways associated with autoimmune diseases.
spellingShingle Kasela, S
Kisand, K
Tserel, L
Kaleviste, E
Remm, A
Fischer, K
Esko, T
Westra, H
Fairfax, B
Makino, S
Knight, J
Franke, L
Metspalu, A
Peterson, P
Milani, L
Pathogenic implications for autoimmune mechanisms derived by comparative eQTL analysis of CD4+ versus CD8+ T cells
title Pathogenic implications for autoimmune mechanisms derived by comparative eQTL analysis of CD4+ versus CD8+ T cells
title_full Pathogenic implications for autoimmune mechanisms derived by comparative eQTL analysis of CD4+ versus CD8+ T cells
title_fullStr Pathogenic implications for autoimmune mechanisms derived by comparative eQTL analysis of CD4+ versus CD8+ T cells
title_full_unstemmed Pathogenic implications for autoimmune mechanisms derived by comparative eQTL analysis of CD4+ versus CD8+ T cells
title_short Pathogenic implications for autoimmune mechanisms derived by comparative eQTL analysis of CD4+ versus CD8+ T cells
title_sort pathogenic implications for autoimmune mechanisms derived by comparative eqtl analysis of cd4 versus cd8 t cells
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