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Type: Journal article
Title: Repression of the genome organizer SATB1 in regulatory T cells is required for suppressive function and inhibition of effector differentiation
Author: Beyer, M.
Sadlon, T.
Barry, S.
Citation: Nature Immunology, 2011; 12(9):898-907
Publisher: Nature Publishing Group
Issue Date: 2011
ISSN: 1529-2908
Statement of
Marc Beyer... Timothy Sadlon...Simon C Barry... et al.
Abstract: Regulatory T cells (T(reg) cells) are essential for self-tolerance and immune homeostasis. Lack of effector T cell (T(eff) cell) function and gain of suppressive activity by T(reg) cells are dependent on the transcriptional program induced by Foxp3. Here we report that repression of SATB1, a genome organizer that regulates chromatin structure and gene expression, was crucial for the phenotype and function of T(reg) cells. Foxp3, acting as a transcriptional repressor, directly suppressed the SATB1 locus and indirectly suppressed it through the induction of microRNAs that bound the SATB1 3' untranslated region. Release of SATB1 from the control of Foxp3 in T(reg) cells caused loss of suppressive function, establishment of transcriptional T(eff) cell programs and induction of T(eff) cell cytokines. Our data support the proposal that inhibition of SATB1-mediated modulation of global chromatin remodeling is pivotal for maintaining T(reg) cell functionality.
Keywords: Animals
Mice, Inbred C57BL
Mice, Knockout
Matrix Attachment Region Binding Proteins
RNA, Small Interfering
3' Untranslated Regions
Flow Cytometry
Gene Expression Profiling
Transduction, Genetic
Reverse Transcriptase Polymerase Chain Reaction
Lymphocyte Activation
Cell Differentiation
Chromatin Assembly and Disassembly
Self Tolerance
Gene Expression Regulation
RNA Interference
Genome, Human
T-Lymphocytes, Regulatory
Forkhead Transcription Factors
Genome-Wide Association Study
Rights: © 2011 Nature America, Inc. All rights reserved.
DOI: 10.1038/ni.2084
Grant ID:
Appears in Collections:Aurora harvest
Microbiology and Immunology publications

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