Cited by 330T-cell and B-cell ImmunologyGenomics and Chromatin DynamicsDevelopmental Biology and Gene Regulation

Defective activation and survival of T cells lacking the Ets-1 transcription factor

Muthusamy, Natarajan, Barton, Kevin, Leiden, Jeffrey M.·1995·Nature

Abstract

The Ets-1 proto-oncogene is a member of the Ets family of eukaryotic transcription factors. Members of this family play important roles in regulating gene expression in response to multiple developmental and mitogenic signals. Ets-1 is preferentially expressed at high levels in B and T cells of adult mice and is regulated during both thymocyte development and T-cell activation. To study the role of Ets-1 in T-cell development and function we have used the RAG-2-/- complementation system and murine embryonic stem (ES) cells containing homozygous deletions in the Ets-1 gene (Ets-1-/-). Ets-1-/(-)-RAG-2-/- chimaeric mice displayed markedly decreased numbers of mature thymocytes and peripheral T cells. Ets-1-/- T cells expressed normal levels of CD3 and T-cell antigen receptor (TCR)-alpha/beta. However, they displayed a severe proliferative defect in response to multiple activational signals and demonstrated increased rates of spontaneous apoptosis in vitro. These findings demonstrate that Ets-1 is required for the normal survival and activation of murine T cells.

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Crossref · 10.1038/377639a0

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Authors
Muthusamy, N., Barton, K., & Leiden, J. M.
Affiliations
University of Chicago (US)
Venue
Nature
Published
1995-10
Volume
377
Issue
6550
Pages
639-642
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2077452186
Cited by
330
References
24
Citations by year
2026: 4 · 2025: 10 · 2024: 14 · 2023: 5 · 2022: 9 · 2021: 7 · 2020: 8 · 2019: 10 · 2018: 3 · 2017: 9 · 2016: 6 · 2015: 9 · 2014: 4 · 2013: 5 · 2012: 7
FWCI
7.64
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
ETS1, T cell activation, T cell survival, T cell development, T cell proliferation, apoptosis, transcription factors, T cell receptor, embryonic stem cells
MeSH terms
Proto-Oncogene Mas, Animals, Cell Division, Cell Line, Cell Survival, Chimera, DNA-Binding Proteins, Lymphocyte Activation, Proteins, Proto-Oncogene Proteins, Spleen, Stem Cells, T-Lymphocytes, Transcription Factors, CD4 Antigens, Receptors, Antigen, T-Cell, alpha-beta, CD8 Antigens, Apoptosis, CD3 Complex, Sequence Deletion, Proto-Oncogene Proteins c-ets, Proto-Oncogene Protein c-ets-1, Mice

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