Type I regulatory T cells in malaria: of mice and men

Type I regulatory T (Tr1) cells are a population of regulatory CD4+ T cells implicated in the suppression of pathological immune responses across multiple diseases, but a unifying transcriptional signature of Tr1 identity across disease contexts has not been characterized. In this issue of the JCI,...

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Main Authors: Jason Nideffer, Prasanna Jagannathan
Format: Article
Language:English
Published: American Society for Clinical Investigation 2023-01-01
Series:The Journal of Clinical Investigation
Online Access:https://doi.org/10.1172/JCI166019
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author Jason Nideffer
Prasanna Jagannathan
author_facet Jason Nideffer
Prasanna Jagannathan
author_sort Jason Nideffer
collection DOAJ
description Type I regulatory T (Tr1) cells are a population of regulatory CD4+ T cells implicated in the suppression of pathological immune responses across multiple diseases, but a unifying transcriptional signature of Tr1 identity across disease contexts has not been characterized. In this issue of the JCI, Edward, Ng, and colleagues identified a conserved transcriptional signature that distinguished Tr1 (IL-10+IFN-γ+) from Th1 (IL-10–IFN-γ+) cells in human and mouse malaria. This signature implicated genes encoding inhibitory receptors — including CTLA-4 and LAG-3 — and transcription factors — including cMAF. The authors identified coinhibitory receptor expression that distinguished Tr1 cells from other CD4+ T cell subsets. Furthermore, cMAF — and, to a lesser extent, BLIMP-1 — promoted IL-10 production in human CD4+ T cells. BLIMP-1 also played a role in supporting the expression of inhibitory receptors. These findings describe a few key features that seem to be conserved by Tr1 cells across multiple species, disease contexts, and marker definitions.
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spelling doaj.art-efdbbf95c8e54407bb3305d4d27c29892023-11-07T16:19:42ZengAmerican Society for Clinical InvestigationThe Journal of Clinical Investigation1558-82382023-01-011331Type I regulatory T cells in malaria: of mice and menJason NidefferPrasanna JagannathanType I regulatory T (Tr1) cells are a population of regulatory CD4+ T cells implicated in the suppression of pathological immune responses across multiple diseases, but a unifying transcriptional signature of Tr1 identity across disease contexts has not been characterized. In this issue of the JCI, Edward, Ng, and colleagues identified a conserved transcriptional signature that distinguished Tr1 (IL-10+IFN-γ+) from Th1 (IL-10–IFN-γ+) cells in human and mouse malaria. This signature implicated genes encoding inhibitory receptors — including CTLA-4 and LAG-3 — and transcription factors — including cMAF. The authors identified coinhibitory receptor expression that distinguished Tr1 cells from other CD4+ T cell subsets. Furthermore, cMAF — and, to a lesser extent, BLIMP-1 — promoted IL-10 production in human CD4+ T cells. BLIMP-1 also played a role in supporting the expression of inhibitory receptors. These findings describe a few key features that seem to be conserved by Tr1 cells across multiple species, disease contexts, and marker definitions.https://doi.org/10.1172/JCI166019
spellingShingle Jason Nideffer
Prasanna Jagannathan
Type I regulatory T cells in malaria: of mice and men
The Journal of Clinical Investigation
title Type I regulatory T cells in malaria: of mice and men
title_full Type I regulatory T cells in malaria: of mice and men
title_fullStr Type I regulatory T cells in malaria: of mice and men
title_full_unstemmed Type I regulatory T cells in malaria: of mice and men
title_short Type I regulatory T cells in malaria: of mice and men
title_sort type i regulatory t cells in malaria of mice and men
url https://doi.org/10.1172/JCI166019
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AT prasannajagannathan typeiregulatorytcellsinmalariaofmiceandmen