Cited by 111interferon and immune responsesCytokine Signaling Pathways and InteractionsT-cell and B-cell Immunology

Expression of IFN regulatory factor family proteins in lymphocytes. Induction of Stat-1 and IFN consensus sequence binding protein expression by T cell activation

Nelson, N, Kanno, Y, Hong, C, Contursi, C, Fujita, T, Fowlkes, B J, O’Connell, E, Hu-Li, J +8 more·1996·The Journal of Immunology

Abstract

Interferon consensus sequence binding protein (ICSBP) is a transcription factor of the IFN regulatory factor (IRF) family. Evidence indicates that this family has a function in the immune system. Unlike other members of the family, ICSBP is expressed exclusively in the immune system. In this work, immunoblot analysis was performed to study expression of ICSBP and other members of the family in various murine lymphocytes. The results show that all IRF family members are expressed constitutively in B cells throughout development, and in resting and activated cells. In contrast, ICSBP expression was undetectable in thymocytes and resting T cells, while all other IRF proteins tested (IRF-1, IRF-2, and ISGF3-γ) were detected in these cells. Induction of ICSBP (and weakly IRF-1, but not other members) was observed upon activation of T cells following anti-CD3 Ab binding or Con A stimulation. Once T cells were activated, ICSBP was expressed stably in both Th1 and Th2 cells. We show that Stat-1, which binds to the IFN-γ-responsive element of the ICSBP promoter, was induced following anti-CD3 Ab and Con A stimulation. Stat-1 induction was found in T cells of IFN-γ+/+, but not of IFN-γ-/- mice, indicating that T cell activation stimulates the Stat pathway of transcription that is mediated through IFN-γ. IFN-γ-activated Stat-1 partly accounted for ICSBP induction in activated T cells, as levels of induction were lower in IFN-γ-/- than in IFN+/+ T cells. Taken together, these results show that activation of ICSBP is coupled with T cell activation that is partly due to IFN-γ-induced Stat-1.

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Crossref · 10.4049/jimmunol.156.10.3711

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  • ICSBP/IRF-8 is an IFN-γ-inducible transcription factor of the IRF family that regulates transcription through multiple target DNA elements, including ISRE, EICE, and GAS.

    “Interferon (IFN) consensus sequence binding protein (ICSBP)/IFN regulatory factor (IRF)-8 is an IFN g -inducible transcription factor of the IRF family and regulates transcription through multiple target DNA elements, such as IFN-stimulated response element (ISRE), Ets/IRF composite element, and IFNg activation site (GAS).”
  • ICSBP is expressed in hematopoietic cells, including monocyte/macrophage lineage, B lymphocytes, and activated T lymphocytes, and is inducible by IFN-γ in these cells.

    “ICSBP is expressed in the hematopoietic cells, including cells of the monocyte/macrophage lineage, B lymphocytes, and activated T lymphocytes, and is inducible by IFNg in these cells, suggesting its role in immune cells. (6,9-13)”

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Authors
Nelson, N., Kanno, Y., Hong, C., Contursi, C., Fujita, T., Fowlkes, B. J., O’Connell, E., Hu-Li, J., Paul, W. E., Jankovic, D., Sher, A. F., Coligan, J. E., Thornton, A., Appella, E., Yang, Y., & Ozato, K.
Affiliations
  • National Institutes of Health (US)
  • Laboratory of Molecular Growth Regulation, National Institute of Child Health and Human Development , Bethesda, MD 20892,
Venue
The Journal of Immunology
Published
1996-05
Volume
156
Issue
10
Pages
3711-3720
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1541863220
Cited by
110
References
0
Citations by year
2026: 1 · 2025: 6 · 2023: 1 · 2022: 3 · 2021: 1 · 2020: 3 · 2017: 4 · 2016: 3 · 2015: 1 · 2014: 2 · 2013: 4 · 2012: 4
FWCI
3.29
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
STAT1, T cell activation, interferon-gamma signaling, IRF1, IRF2, B cells, thymocytes, Th1/Th2 cells, transcriptional regulation, anti-CD3 stimulation, concanavalin A
MeSH terms
Interferon Regulatory Factor-8, Amino Acid Sequence, Animals, Antibodies, Monoclonal, B-Lymphocytes, Base Sequence, Carrier Proteins, Cell Differentiation, Cell Line, DNA-Binding Proteins, Hybridomas, Interferon-gamma, Interphase, Lipopolysaccharides, Lymphocyte Activation, Molecular Sequence Data, Phosphoproteins, Receptors, Antigen, T-Cell, Repressor Proteins, T-Lymphocytes, Trans-Activators, CD3 Complex, Th1 Cells, Th2 Cells, STAT1 Transcription Factor, Interferon Regulatory Factors, Interferon Regulatory Factor-1, Mice

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