2. Academic Validation
  3. REV-ERBα Regulates TH17 Cell Development and Autoimmunity

REV-ERBα Regulates TH17 Cell Development and Autoimmunity

  • Cell Rep. 2018 Dec 26;25(13):3733-3749.e8. doi: 10.1016/j.celrep.2018.11.101.
Mohammed Amir 1,  Sweena Chaudhari 1,  Ran Wang 1,  Sean Campbell 1,  Sarah A Mosure 2,  Laura B Chopp 1,  Qun Lu 3,  Jinsai Shang 4,  Oliver B Pelletier 1,  Yuanjun He 5,  Christelle Doebelin 5,  Michael D Cameron 5,  Douglas J Kojetin 4,  Theodore M Kamenecka 5,  Laura A Solt 6
Affiliations

Affiliations

  • 1 Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, Florida 33458, USA.
  • 2 Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, Florida 33458, USA; Scripps Research, Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, La Jolla, California 92037, USA; Department of Integrative Structural and Computational Biology, The Scripps Research Institute, Jupiter, Florida 33458, USA.
  • 3 Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, Florida 33458, USA; Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, USA.
  • 4 Department of Integrative Structural and Computational Biology, The Scripps Research Institute, Jupiter, Florida 33458, USA.
  • 5 Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, USA.
  • 6 Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, Florida 33458, USA; Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida 33458, USA. Electronic address: lsolt@scripps.edu.
PMID: 30590045 DOI: 10.1016/j.celrep.2018.11.101
Abstract

RORγt is well recognized as the lineage-defining transcription factor for T helper 17 (TH17) cell development. However, the cell-intrinsic mechanisms that negatively regulate TH17 cell development and autoimmunity remain poorly understood. Here, we demonstrate that the transcriptional repressor REV-ERBα is exclusively expressed in TH17 cells, competes with RORγt for their shared DNA consensus sequence, and negatively regulates TH17 cell development via repression of genes traditionally characterized as RORγt dependent, including Il17a. Deletion of REV-ERBα enhanced TH17-mediated pro-inflammatory cytokine expression, exacerbating experimental autoimmune encephalomyelitis (EAE) and colitis. Treatment with REV-ERB-specific synthetic ligands, which have similar phenotypic properties as RORγ modulators, suppressed TH17 cell development, was effective in colitis intervention studies, and significantly decreased the onset, severity, and relapse rate in several models of EAE without affecting thymic cellularity. Our results establish that REV-ERBα negatively regulates pro-inflammatory TH17 responses in vivo and identifies the REV-ERBs as potential targets for the treatment of TH17-mediated autoimmune diseases.

Keywords

IL-17A; REV-ERB; RORγt; SR9009; T cells; Th17; autoimmunity; circadian.

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