Cited by 109Histone Deacetylase Inhibitors ResearchT-cell and B-cell ImmunologyCytokine Signaling Pathways and Interactions

A novel role for histone deacetylase 6 in the regulation of the tolerogenic STAT3/IL-10 pathway in APCs

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Cheng, Fengdong, Lienlaf, Maritza, Wang, Hong-Wei, Perez-Villarroel, Patricio, Lee, Calvin, Woan, Karrune, Rock-Klotz, Jennifer, Sahakian, Eva +9 more·2014·The Journal of Immunology

Abstract

APCs are critical in T cell activation and in the induction of T cell tolerance. Epigenetic modifications of specific genes in the APC play a key role in this process, and among them histone deacetylases (HDACs) have emerged as key participants. HDAC6, one of the members of this family of enzymes, has been shown to be involved in regulation of inflammatory and immune responses. In this study, to our knowledge we show for the first time that genetic or pharmacologic disruption of HDAC6 in macrophages and dendritic cells results in diminished production of the immunosuppressive cytokine IL-10 and induction of inflammatory APCs that effectively activate Ag-specific naive T cells and restore the responsiveness of anergic CD4+ T cells. Mechanistically, we have found that HDAC6 forms a previously unknown molecular complex with STAT3, association that was detected in both the cytoplasmic and nuclear compartments of the APC. By using HDAC6 recombinant mutants we identified the domain comprising amino acids 503–840 as being required for HDAC6 interaction with STAT3. Furthermore, by re–chromatin immunoprecipitation we confirmed that HDAC6 and STAT3 are both recruited to the same DNA sequence within the Il10 gene promoter. Of note, disruption of this complex by knocking down HDAC6 resulted in decreased STAT3 phosphorylation—but no changes in STAT3 acetylation—as well as diminished recruitment of STAT3 to the Il10 gene promoter region. The additional demonstration that a selective HDAC6 inhibitor disrupts this STAT3/IL-10 tolerogenic axis points to HDAC6 as a novel molecular target in APCs to overcome immune tolerance and tips the balance toward T cell immunity.

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Crossref · 10.4049/jimmunol.1302778

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  • STAT3-HDAC6 transcriptionally upregulates IL-10, preventing effective antigen-specific CD4+ T cell activation in tumor-bearing mice.

    “STAT3–HDAC6 transcriptionally upregulates IL-10, preventing effective Ag-specific CD4+ T cell activation in tumor-bearing mice”

    From Targeting Janus Kinases and Signal Transducer and Activator of Transcription 3 To Treat Inflammation, Fibrosis, and Cancer: Rationale, Progress, and Caution (2020) · cites this paper as Cheng et al., 2014

    The Discussion describes HDAC6 and STAT3 as regulators of Il10 transcription in APCs, and the Results show that disrupting HDAC6 improves antigen-specific CD4+ T-cell activation. In the tumor-bearing-mouse model, however, the paper tested re-isolated tolerant T cells with HDAC6-deficient APCs in vitro; it does not show that the STAT3–HDAC6–IL-10 pathway prevented their activation within tumor-bearing mice. Page numbers are unavailable in our copy. (LLM, conf=0.84)

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  • Use of an HDAC inhibitor enabled effective T cell priming and antitumor response.

    “use of a HDAC inhibitor enabled effective T cell priming and antitumor response”

    From Targeting Janus Kinases and Signal Transducer and Activator of Transcription 3 To Treat Inflammation, Fibrosis, and Cancer: Rationale, Progress, and Caution (2020) · cites this paper as Cheng et al., 2014

    The Results section reports that the HDAC6 inhibitor Tubastatin A enhanced antigen-specific CD4+ T-cell activation and priming, including in vaccinated mice. It also restored responsiveness of T cells isolated from tumor-bearing mice, but does not report an antitumor response such as reduced tumor growth or rejection (page numbers unavailable). (LLM, conf=0.88)

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Authors
Cheng, F., Lienlaf, M., Wang, H.-W., Perez-Villarroel, P., Lee, C., Woan, K., Rock-Klotz, J., Sahakian, E., Woods, D., Pinilla-Ibarz, J., Kalin, J., Tao, J., Hancock, W., Kozikowski, A., Seto, E., Villagra, A., & Sotomayor, E. M.
Affiliations
  • Moffitt Cancer Center (US)
  • Department of Immunology and Malignant Hematology, H. Lee Moffitt Cancer Center and Research Institute , Tampa, FL 33612
  • Johns Hopkins University (US)
  • University of Illinois Chicago (US)
  • University of Pennsylvania (US)
Corresponding author
  • Cheng, Fengdong
  • Lienlaf, Maritza
  • Woan, Karrune
  • Sahakian, Eva
  • Woods, David
  • Tao, Jianguo
  • Villagra, Alejandro
Venue
The Journal of Immunology
Published
2014-09
Volume
193
Issue
6
Pages
2850-2862
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2151850046
Cited by
106
References
64
Citations by year
2026: 6 · 2025: 5 · 2024: 12 · 2023: 8 · 2022: 7 · 2021: 11 · 2020: 15 · 2019: 12 · 2018: 11 · 2017: 6 · 2016: 8 · 2015: 5
FWCI
2.60
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute (R21CA184612, R01CA087583, CA134807, T32CA115308, R01CA134807, R21CA153246, R01CA100850, CA87583, CA100850, P30CA076292)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Histone Deacetylase Inhibitors Research
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
Keywords
HDAC6, STAT3, IL-10, antigen-presenting cells, dendritic cells, macrophages, T cell tolerance, STAT3 phosphorylation, epigenetic regulation, HDAC6 inhibitors, T cell activation
MeSH terms
Histone Deacetylase 6, Acetylation, Animals, Antigen-Presenting Cells, Cell Line, Dendritic Cells, Gene Expression Regulation, Histone Deacetylases, Immune Tolerance, Inflammation, Lymphocyte Activation, Macrophages, Male, Mice, Inbred BALB C, Mice, Inbred C57BL, Mutation, Oligopeptides, Phosphorylation, Promoter Regions, Genetic, Recombinant Proteins, Transcription, Genetic, CD4-Positive T-Lymphocytes, Gene Expression, Interleukin-10, Protein Structure, Tertiary, Mice, Knockout, RNA Interference, RNA, Small Interfering, Chromatin Immunoprecipitation, STAT3 Transcription Factor, Mice, Histone Deacetylase Inhibitors

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