Cited by 316T-cell and B-cell ImmunologyDevelopmental Biology and Gene RegulationPsoriasis: Treatment and Pathogenesis

Developmental and Molecular Characterization of Emerging β- and γδ-Selected Pre-T Cells in the Adult Mouse Thymus

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Taghon, Tom, Yui, Mary A., Pant, Rashmi, Diamond, Rochelle A., Rothenberg, Ellen V.·2006·Immunity

Abstract

The first checkpoint in T cell development, beta selection, has remained incompletely characterized for lack of specific surface markers. We show that CD27 is upregulated in DN3 thymocytes initiating beta selection, concomitant with intracellular TCR-beta expression. Clonal analysis determined that CD27high DN3 cells generate CD4+CD8+ progeny with more than 90% efficiency, faster and more efficiently than the CD27low majority. CD27 upregulation also occurs in gammadelta-selected DN3 thymocytes in TCR-beta-/- mice and in IL2-GFP transgenic reporter mice where GFP marks the earliest emerging TCR-gammadelta cells from DN3 thymocytes. With CD27 to distinguish pre- and postselection DN3 cells, a detailed gene expression analysis defined regulatory changes associated with checkpoint arrest, with beta selection, and with gammadelta selection. gammadelta selection induces higher CD5, Egr, and Runx3 expression as compared to beta selection, but it triggers less proliferation. Our results also reveal differences in Notch/Delta dependence at the earliest stages of divergence between developing alphabeta and gammadelta T-lineage cells.

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Crossref · 10.1016/j.immuni.2005.11.012

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  • Commitment to the T cell lineage is complete at the DN3 stage, where cells undergo DNA rearrangements at the β, γ, and δ TCR loci and choose between αβ and γδ developmental programs.

    “Commitment to the T cell lineage is complete at the DN3 stage where the cells undergo extensive DNA rearrangements at the β, γ and δ TCR loci in order to express functional TCR chains and make a choice between two developmental programs, one generating αβ T cell subsets and one generating the distinct characteristics and functions of γδ T cells [4], [5].”

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Authors
Taghon, T., Yui, M. A., Pant, R., Diamond, R. A., & Rothenberg, E. V.
Affiliations
California Institute of Technology (US)
Corresponding author
Rothenberg, Ellen V.
Venue
Immunity
Publisher
Elsevier BV
Published
2006-01
Volume
24
Issue
1
Pages
53-64
ISSN
1074-7613 (ISSN-L)
OpenAlex
W2056429839
Cited by
312
References
58
Citations by year
2026: 2 · 2025: 10 · 2024: 12 · 2023: 6 · 2022: 17 · 2021: 13 · 2020: 17 · 2019: 14 · 2018: 7 · 2017: 7 · 2016: 14 · 2015: 15 · 2014: 19 · 2013: 17 · 2012: 18
FWCI
8.39
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
National Cancer Institute (R01CA98925, R01CA90233, R01CA090233, R01CA098925)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
Keywords
beta-selection, γδ T cells, CD27, T cell development, TCR beta, CD5, Egr transcription factors, RUNX3, Delta-Notch signaling, thymus, clonal analysis
MeSH terms
Animals, Interleukin-2, Membrane Proteins, Mice, Mutant Strains, Stem Cells, Thymus Gland, CD4-Positive T-Lymphocytes, Up-Regulation, Receptors, Antigen, T-Cell, gamma-delta, Receptors, Antigen, T-Cell, alpha-beta, Tumor Necrosis Factor Receptor Superfamily, Member 7, CD8-Positive T-Lymphocytes, Gene Expression Regulation, Developmental, Cell Lineage, Transgenes, Gene Expression Profiling, Intracellular Signaling Peptides and Proteins, Mice, Receptors, Notch

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