scispace - formally typeset
Journal ArticleDOI

Nr4a receptors are essential for thymic regulatory T cell development and immune homeostasis.

TLDR
The results suggest that Nr4a receptors have key roles in determining CD4+ T cell fates in the thymus and thus contribute to immune homeostasis.
Abstract
Regulatory T cells (T(reg) cells) develop from progenitor thymocytes after the engagement of T cell antigen receptors (TCRs) with high-affinity ligands, but the underlying molecular mechanisms are still unclear. Here we show that the Nr4a nuclear receptors, which are encoded by immediate-early genes upregulated by TCR stimulation in thymocytes, have essential roles in T(reg) cell development. Mice that lacked all Nr4a factors could not produce T(reg) cells and died early owing to systemic autoimmunity. Nr4a receptors directly activated the promoter of the gene encoding the transcription factor Foxp3, and forced activation of Nr4a receptors bypassed low-strength TCR signaling to drive the T(reg) cell developmental program. Our results suggest that Nr4a receptors have key roles in determining CD4(+) T cell fates in the thymus and thus contribute to immune homeostasis.

read more

Citations
More filters
Journal ArticleDOI

Development and Maintenance of Regulatory T cells

TL;DR: Understanding how epigenetic alterations and Foxp3 expression coordinately control Treg-cell-specific gene regulation will enable better control of immune responses by targeting the generation and maintenance of Treg cells.
Journal ArticleDOI

NR4A transcription factors limit CAR T cell function in solid tumours.

TL;DR: Transfer of NR4A-deficient T cells expressing chimeric antigen receptors is shown to reduce tumour burden and increase survival by shifting T cell transcriptional programs away from exhaustion and towards increased effector function.
Journal ArticleDOI

Regulatory circuits of T cell function in cancer

TL;DR: T cell-intrinsic molecular alterations and metabolic communication in the tumour microenvironment are discussed and identification of the underlying molecular drivers of T cell dysfunction is essential for the continued progress of cancer research and therapy.
Journal ArticleDOI

T cell receptor signalling in the control of regulatory T cell differentiation and function

TL;DR: The emerging understanding of TCR-guided differentiation of TReg cells in the context of their function in health and disease is discussed.
References
More filters
Journal ArticleDOI

Control of Regulatory T Cell Development by the Transcription Factor Foxp3

TL;DR: Foxp3, which encodes a transcription factor that is genetically defective in an autoimmune and inflammatory syndrome in humans and mice, is specifically expressed in naturally arising CD4+ regulatory T cells and retroviral gene transfer of Foxp3 converts naïve T cells toward a regulatory T cell phenotype similar to that of naturally occurring CD4+.
Journal ArticleDOI

Foxp3 programs the development and function of CD4 + CD25 + regulatory T cells

TL;DR: It is reported that the forkhead transcription factor Foxp3 is specifically expressed in CD4+CD25+ regulatory T cells and is required for their development and function and ectopic expression ofFoxp3 confers suppressor function on peripheral CD4-CD25− T cells.
Journal ArticleDOI

Conversion of Peripheral CD4+CD25− Naive T Cells to CD4+CD25+ Regulatory T Cells by TGF-β Induction of Transcription Factor Foxp3

TL;DR: Novel evidence is presented that conversion of naive peripheral CD4+CD25− T cells into anergic/suppressor cells that are CD25+, CD45RB−/low and intracellular CTLA-4+ can be achieved through costimulation with T cell receptors (TCRs) and transforming growth factor β (TGF-β).
Journal ArticleDOI

Naturally Arising CD4+ Regulatory T Cells for Immunologic Self-Tolerance and Negative Control of Immune Responses

TL;DR: How naturally arising CD25+CD4+ regulatory T cells contribute to the maintenance of immunologic self-tolerance and negative control of various immune responses, and how they can be exploited to prevent and treat autoimmune disease, allergy, cancer, and chronic infection, or establish donor-specific transplantation tolerance are discussed.
Related Papers (5)