Cited by 180Immunotherapy and Immune ResponsesT-cell and B-cell ImmunologyCytokine Signaling Pathways and Interactions

Granzyme B produced by human plasmacytoid dendritic cells suppresses T-cell expansion

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Jahrsdörfer, Bernd, Vollmer, Angelika, Blackwell, Sue E., Maier, Julia, Sontheimer, Kai, Beyer, Thamara, Mandel, Birgit, Lunov, Oleg +6 more·2010·Blood

Abstract

Human plasmacytoid dendritic cells (pDCs) are crucially involved in the modulation of adaptive T-cell responses in the course of neoplastic, viral, and autoimmune disorders. In several of these diseases elevated extracellular levels of the serine protease granzyme B (GrB) are observed. Here we demonstrate that human pDCs can be an abundant source of GrB and that such GrB+ pDCs potently suppress T-cell proliferation in a GrB-dependent, perforin-independent manner, a process reminiscent of regulatory T cells. Moreover, we show that GrB expression is strictly regulated on a transcriptional level involving Janus kinase 1 (JAK1), signal transducer and activator of transcription 3 (STAT3), and STAT5 and that interleukin-3 (IL-3), a cytokine secreted by activated T cells, plays a central role for GrB induction. Moreover, we find that the immunosuppressive cytokine IL-10 enhances, while Toll-like receptor agonists and CD40 ligand strongly inhibit, GrB secretion by pDCs. GrB-secreting pDCs may play a regulatory role for immune evasion of tumors, antiviral immune responses, and autoimmune processes. Our results provide novel information about the complex network of pDC–T-cell interactions and may contribute to an improvement of prophylactic and therapeutic vaccinations.

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Crossref · 10.1182/blood-2009-07-235382

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Research works printed but not linked: 3

  1. Buzza MS, Bird PI. Extracellular granzymes: cur- rent perspectives. Biol Chem. 2006;387(7):827- 837.
  2. Gondek DC, Lu LF, Quezada SA, Sakaguchi S, Noelle RJ. Cutting edge: contact-mediated sup- pression by CD4ϩCD25ϩ regulatory cells in- volves a granzyme B-dependent, perforin- independent mechanism. J Immunol. 2005; 174(4):1783-1786.
  3. Froelich CJ, Orth K, Turbov J, et al. New para- digm for lymphocyte granule-mediated cytotoxic- ity: target cells bind and internalize granzyme B, but an endosomolytic agent is necessary for cyto- solic delivery and subsequent apoptosis. J Biol Chem. 1996;271(46):29073-29079.

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Authors
Jahrsdörfer, B., Vollmer, A., Blackwell, S. E., Maier, J., Sontheimer, K., Beyer, T., Mandel, B., Lunov, O., Tron, K., Nienhaus, G. U., Simmet, T., Debatin, K.-M., Weiner, G. J., & Fabricius, D.
Affiliations
  • Universität Ulm (DE)
  • University of Iowa (US)
  • Institute of Pharmacology (CZ)
  • Karlsruhe Institute of Technology (DE)
Venue
Blood
Published
2010-02-11
Volume
115
Issue
6
Pages
1156-1165
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2018280156
Cited by
180
References
57
Citations by year
2026: 6 · 2025: 13 · 2024: 11 · 2023: 10 · 2022: 18 · 2021: 6 · 2020: 17 · 2019: 8 · 2018: 9 · 2017: 11 · 2016: 5 · 2015: 11 · 2014: 10 · 2013: 17 · 2012: 11
FWCI
3.88
Type
journal article
Language
en
Open access
Locations
  • Blood (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Leuka
  • Deutscher Akademischer Austauschdienst
  • Deutsche Forschungsgemeinschaft
  • Universität Ulm
  • National Cancer Institute (P50CA97274, P50CA097274)
  • European Social Fund
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
Keywords
granzyme B, plasmacytoid dendritic cells, T cell suppression, regulatory T cells, JAK1, STAT3, STAT5, interleukin-3, IL-10, TLR agonists, CD40 ligand, transcriptional regulation, tumor immune evasion, antiviral immunity, autoimmune disease, prophylactic and therapeutic vaccination
MeSH terms
Arthritis, Juvenile, Cell Differentiation, Cells, Cultured, Child, Cytotoxicity, Immunologic, Dendritic Cells, Enzyme-Linked Immunosorbent Assay, Flow Cytometry, Humans, Interleukin-3, Lymphocyte Activation, RNA, Messenger, T-Lymphocytes, Blotting, Western, Signal Transduction, Reverse Transcriptase Polymerase Chain Reaction, Cell Proliferation, STAT3 Transcription Factor, STAT5 Transcription Factor, Granzymes

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