Differential Regulation of Human Treg and Th17 Cells by Fatty Acid Synthesis and Glycolysis

In this study we examined the metabolic requirements of human T helper cells and the effect of manipulating metabolic pathways in Th17 and Treg cells. The Th17:Treg cell axis is dysregulated in a number of autoimmune or inflammatory diseases and therefore it is of key importance to identify novel st...

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Main Authors: Deborah Cluxton, Andreea Petrasca, Barry Moran, Jean M. Fletcher
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-02-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fimmu.2019.00115/full
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author Deborah Cluxton
Andreea Petrasca
Barry Moran
Jean M. Fletcher
Jean M. Fletcher
author_facet Deborah Cluxton
Andreea Petrasca
Barry Moran
Jean M. Fletcher
Jean M. Fletcher
author_sort Deborah Cluxton
collection DOAJ
description In this study we examined the metabolic requirements of human T helper cells and the effect of manipulating metabolic pathways in Th17 and Treg cells. The Th17:Treg cell axis is dysregulated in a number of autoimmune or inflammatory diseases and therefore it is of key importance to identify novel strategies to modulate this axis in favor of Treg cells. We investigated the role of carbohydrate and fatty acid metabolism in the regulation of human memory T helper cell subsets, in order to understand how T cells are regulated at the site of inflammation where essential nutrients including oxygen may be limiting. We found that Th17 lineage cells primarily utilize glycolysis, as glucose-deprivation and treatment with rapamycin resulted in a reduction in these cells. On the other hand, Treg cells exhibited increased glycolysis, mitochondrial respiration, and fatty acid oxidation, whereas Th17 cells demonstrated a reliance upon fatty acid synthesis. Treg cells were somewhat reliant on glycolysis, but to a lesser extent than Th17 cells. Here we expose a fundamental difference in the metabolic requirements of human Treg and Th17 cells and a possible mechanism for manipulating the Th17:Treg cell axis.
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spelling doaj.art-37c13f6c247347e2bb3bbf679083ed642022-12-21T19:52:48ZengFrontiers Media S.A.Frontiers in Immunology1664-32242019-02-011010.3389/fimmu.2019.00115410044Differential Regulation of Human Treg and Th17 Cells by Fatty Acid Synthesis and GlycolysisDeborah Cluxton0Andreea Petrasca1Barry Moran2Jean M. Fletcher3Jean M. Fletcher4School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, IrelandSchool of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, IrelandSchool of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, IrelandSchool of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, IrelandSchool of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, IrelandIn this study we examined the metabolic requirements of human T helper cells and the effect of manipulating metabolic pathways in Th17 and Treg cells. The Th17:Treg cell axis is dysregulated in a number of autoimmune or inflammatory diseases and therefore it is of key importance to identify novel strategies to modulate this axis in favor of Treg cells. We investigated the role of carbohydrate and fatty acid metabolism in the regulation of human memory T helper cell subsets, in order to understand how T cells are regulated at the site of inflammation where essential nutrients including oxygen may be limiting. We found that Th17 lineage cells primarily utilize glycolysis, as glucose-deprivation and treatment with rapamycin resulted in a reduction in these cells. On the other hand, Treg cells exhibited increased glycolysis, mitochondrial respiration, and fatty acid oxidation, whereas Th17 cells demonstrated a reliance upon fatty acid synthesis. Treg cells were somewhat reliant on glycolysis, but to a lesser extent than Th17 cells. Here we expose a fundamental difference in the metabolic requirements of human Treg and Th17 cells and a possible mechanism for manipulating the Th17:Treg cell axis.https://www.frontiersin.org/article/10.3389/fimmu.2019.00115/fullT cellsTh17 cellsTreg cellsimmunometabolismfatty acid synthesisglycolysis (glycolytic pathway)
spellingShingle Deborah Cluxton
Andreea Petrasca
Barry Moran
Jean M. Fletcher
Jean M. Fletcher
Differential Regulation of Human Treg and Th17 Cells by Fatty Acid Synthesis and Glycolysis
Frontiers in Immunology
T cells
Th17 cells
Treg cells
immunometabolism
fatty acid synthesis
glycolysis (glycolytic pathway)
title Differential Regulation of Human Treg and Th17 Cells by Fatty Acid Synthesis and Glycolysis
title_full Differential Regulation of Human Treg and Th17 Cells by Fatty Acid Synthesis and Glycolysis
title_fullStr Differential Regulation of Human Treg and Th17 Cells by Fatty Acid Synthesis and Glycolysis
title_full_unstemmed Differential Regulation of Human Treg and Th17 Cells by Fatty Acid Synthesis and Glycolysis
title_short Differential Regulation of Human Treg and Th17 Cells by Fatty Acid Synthesis and Glycolysis
title_sort differential regulation of human treg and th17 cells by fatty acid synthesis and glycolysis
topic T cells
Th17 cells
Treg cells
immunometabolism
fatty acid synthesis
glycolysis (glycolytic pathway)
url https://www.frontiersin.org/article/10.3389/fimmu.2019.00115/full
work_keys_str_mv AT deborahcluxton differentialregulationofhumantregandth17cellsbyfattyacidsynthesisandglycolysis
AT andreeapetrasca differentialregulationofhumantregandth17cellsbyfattyacidsynthesisandglycolysis
AT barrymoran differentialregulationofhumantregandth17cellsbyfattyacidsynthesisandglycolysis
AT jeanmfletcher differentialregulationofhumantregandth17cellsbyfattyacidsynthesisandglycolysis
AT jeanmfletcher differentialregulationofhumantregandth17cellsbyfattyacidsynthesisandglycolysis