Cited by 72T-cell and B-cell ImmunologyCancer Immunotherapy and BiomarkersPsoriasis: Treatment and Pathogenesis

Inhibiting the coregulator CoREST impairs Foxp3+ Treg function and promotes antitumor immunity

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Xiong, Yan, Wang, Liqing, Di Giorgio, Eros, Akimova, Tatiana, Beier, Ulf H., Han, Rongxiang, Trevisanut, Matteo, Kalin, Jay H. +2 more·2020·Journal of Clinical Investigation

Abstract

Foxp3+ Tregs are key to immune homeostasis, but the contributions of various large, multiprotein complexes that regulate gene expression remain unexplored. We analyzed the role in Tregs of the evolutionarily conserved CoREST complex, consisting of a scaffolding protein, Rcor1 or Rcor2, plus Hdac1 or Hdac2 and Lsd1 enzymes. Rcor1, Rcor2, and Lsd1 were physically associated with Foxp3, and mice with conditional deletion of Rcor1 in Foxp3+ Tregs had decreased proportions of Tregs in peripheral lymphoid tissues and increased Treg expression of IL-2 and IFN-γ compared with what was found in WT cells. Mice with conditional deletion of the gene encoding Rcor1 in their Tregs had reduced suppression of homeostatic proliferation, inability to maintain long-term allograft survival despite costimulation blockade, and enhanced antitumor immunity in syngeneic models. Comparable findings were seen in WT mice treated with CoREST complex bivalent inhibitors, which also altered the phenotype of human Tregs and impaired their suppressive function. Our data point to the potential for therapeutic modulation of Treg functions by pharmacologic targeting of enzymatic components of the CoREST complex and contribute to an understanding of the biochemical and molecular mechanisms by which Foxp3 represses large gene sets and maintains the unique properties of this key immune cell.

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  • Genetic or pharmacological targeting of the CoREST complex enhances anti-tumour activity in mice.

    “Genetic or pharmacological targeting of the CoREST complex enhances anti-tumour activity in mice (Bantscheff et al., 2011;Xiong et al., 2020).”

    From HDACs and the epigenetic plasticity of cancer cells: target the complexity (2022) · cites this paper as Xiong et al., 2020

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Authors
Xiong, Y., Wang, L., Di Giorgio, E., Akimova, T., Beier, U. H., Han, R., Trevisanut, M., Kalin, J. H., Cole, P. A., & Hancock, W. W.
Affiliations
  • Children's Hospital of Philadelphia (US)
  • University of Udine (IT)
  • Brigham and Women's Hospital (US)
Corresponding author
Hancock, Wayne W.
Venue
Journal of Clinical Investigation
Published
2020-03-03
Volume
130
Issue
4
Pages
1830-1842
ISSN
  • 0021-9738 (ISSN-L)
  • 1558-8238
OpenAlex
W2999532564
Cited by
72
References
51
Citations by year
2026: 9 · 2025: 8 · 2024: 9 · 2023: 9 · 2022: 19 · 2021: 13 · 2020: 5
FWCI
4.02
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Research Information System (University of Udine) (submittedVersion, cc-by-nc-nd)
Funders
National Institutes of Health (R01 AI12324, R01 CA177852, R37GM62437, R01 AI12324,R01 CA177852,R37GM62437)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
Keywords
Foxp3+ regulatory T cells, CoREST complex, LSD1, histone deacetylase, transcriptional co-regulation, Treg suppressive function, antitumor immunity, conditional gene deletion, bivalent inhibitors, allograft tolerance
MeSH terms
Animals, Humans, Immunity, Cellular, Mice, Inbred BALB C, Neoplasms, Experimental, Nerve Tissue Proteins, Mice, Knockout, Cell Line, Tumor, Multiprotein Complexes, T-Lymphocytes, Regulatory, Mice, Co-Repressor Proteins

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