Cited by 91T-cell and B-cell ImmunologyPsoriasis: Treatment and PathogenesisImmune Cell Function and Interaction

Blimp‐1 induces and Hobit maintains the cytotoxic mediator granzyme B in CD8 T cells

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Kragten, Natasja A.M., Behr, Felix M., Vieira Braga, Felipe A., Remmerswaal, Ester B. M., Wesselink, Thomas H., Oja, Anna E., Hombrink, Pleun, Kallies, Axel +3 more·2018·European Journal of Immunology

Abstract

CD8 T cells acquire cytotoxic molecules including granzyme B during effector differentiation. Both tissue‐resident memory CD8 T cells (Trm) and circulating CD45RA+ effector‐type T cells (Temra) cells have the ability to retain granzyme B protein expression into the memory phase, but it is unclear how this persistence of cytolytic activity is regulated during steady state. Previously, we have described that the transcriptional regulators Hobit and Blimp‐1 have overlapping target genes that include granzyme B, but their impact on the regulation of cytotoxicity in Trm and Temra cells during homeostasis has remained unclear. We examined the expression regulation of Hobit and Blimp‐1 in murine and human CD8 T‐cells to determine their timeframe of activity. While Blimp‐1 mRNA was expressed throughout effector and memory T cells, Blimp‐1 protein, was only transiently expressed during the effector stage. In contrast, Hobit mRNA and protein expression was stably maintained during quiescence, but downregulated after activation. Notably, Blimp‐1 was required for expression of granzyme B in murine effector T cells and Trm, while Hobit specifically regulated granzyme B in murine Trm during the memory phase. These findings suggest that Blimp‐1 initiates cytotoxic effector function and that Hobit maintains cytotoxicity in a deployment‐ready modus in Trm.

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Authors
Kragten, N. A. M., Behr, F. M., Vieira Braga, F. A., Remmerswaal, E. B. M., Wesselink, T. H., Oja, A. E., Hombrink, P., Kallies, A., van Lier, R. A. W., Stark, R., & van Gisbergen, K. P. J. M.
Affiliations
  • Sanquin (NL)
  • Dept of Hematopoiesis Sanquin Research and Landsteiner Laboratory Amsterdam UMC University of Amsterdam Amsterdam Netherlands
  • Amsterdam University Medical Centers (NL)
  • The University of Melbourne (AU)
Venue
European Journal of Immunology
Publisher
Wiley
Published
2018-08-16
Volume
48
Issue
10
Pages
1644-1662
ISSN
  • 0014-2980 (ISSN-L)
  • 1521-4141
OpenAlex
W2884205201
Cited by
91
References
51
Citations by year
2026: 7 · 2025: 12 · 2024: 11 · 2023: 10 · 2022: 20 · 2021: 13 · 2020: 9 · 2019: 7 · 2018: 2
FWCI
3.33
Type
journal article
Language
en
Open access
Locations
  • European Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Minerva Access (University of Melbourne) (submittedVersion)
Funders
  • ZonMw (VENI # 016.186.116, VIDI # 016.136.338)
  • Landsteiner Foundation for Blood Transfusion Research (Fellowship # 1629)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Cell Function and Interaction
Keywords
Blimp-1, Hobit, granzyme B, CD8+ T cells, tissue-resident memory T cells, effector memory T cells, cytotoxicity, transcriptional regulation, T cell homeostasis, transcription factors
MeSH terms
Positive Regulatory Domain I-Binding Factor 1, Animals, Cells, Cultured, Gene Expression Regulation, Humans, Immunologic Memory, Mice, Inbred C57BL, Transcription Factors, Mice, Knockout, CD8-Positive T-Lymphocytes, Mice, Granzymes, Natural Killer T-Cells

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