Abstract
Our understanding of the pathways that regulate lymphocyte metabolism, as well as the effects of metabolism and its products on the immune response, is still limited. We report that a metabolic program controlled by the transcription factors hypoxia inducible factor-1α (HIF1-α) and aryl hydrocarbon receptor (AHR) supports the differentiation of type 1 regulatory T cell (Tr1) cells. HIF1-α controls the early metabolic reprograming of Tr1 cells. At later time points, AHR promotes HIF1-α degradation and takes control of Tr1 cell metabolism. Extracellular ATP (eATP) and hypoxia, linked to inflammation, trigger AHR inactivation by HIF1-α and inhibit Tr1 cell differentiation. Conversely, CD39 promotes Tr1 cell differentiation by depleting eATP. CD39 also contributes to Tr1 suppressive activity by generating adenosine in cooperation with CD73 expressed by responder T cells and antigen-presenting cells. These results suggest that HIF1-α and AHR integrate immunological, metabolic and environmental signals to regulate the immune response.
Original language | English |
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Pages (from-to) | 638-646 |
Number of pages | 9 |
Journal | Nature Medicine |
Volume | 21 |
Issue number | 6 |
DOIs | |
State | Published - 9 Jun 2015 |
Externally published | Yes |
Bibliographical note
Funding Information:We thank D. Frank (Dana-Farber Cancer Institute) for STAT3C plasmid. This work was supported by grants AI093903 and NS087867 from the US National Institutes of Health and RG4111A1 from the National Multiple Sclerosis Society to F.J.Q., and by grant CA164970 from the US National Institutes of Health to S.C.R. I.D.M. received support from an educational grant from Questcor (A219074) and by a postdoctoral fellowship (FG 2036-A1/1) from the National Multiple Sclerosis Society. M.C.T. is a graduate student in the Ph.D. program of the Federal University of São Paulo, and was supported by fellowship 246252/2012-0 from Ciências sem Fronteiras CNPq, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil.
Funding
We thank D. Frank (Dana-Farber Cancer Institute) for STAT3C plasmid. This work was supported by grants AI093903 and NS087867 from the US National Institutes of Health and RG4111A1 from the National Multiple Sclerosis Society to F.J.Q., and by grant CA164970 from the US National Institutes of Health to S.C.R. I.D.M. received support from an educational grant from Questcor (A219074) and by a postdoctoral fellowship (FG 2036-A1/1) from the National Multiple Sclerosis Society. M.C.T. is a graduate student in the Ph.D. program of the Federal University of São Paulo, and was supported by fellowship 246252/2012-0 from Ciências sem Fronteiras CNPq, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil.
Funders | Funder number |
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Federal University of São Paulo | 246252/2012-0 |
National Institutes of Health | RG4111A1 |
National Institute of Neurological Disorders and Stroke | R21NS087867 |
National Multiple Sclerosis Society | A219074, CA164970, FG 2036-A1/1 |
Conselho Nacional de Desenvolvimento Científico e Tecnológico |