Cited by 158T-cell and B-cell ImmunologyHematopoietic Stem Cell TransplantationDevelopmental Biology and Gene Regulation

The earliest subpopulation of mouse thymocytes contains potent T, significant macrophage, and natural killer cell but no B-lymphocyte potential

Balciunaite, Gina, Ceredig, Rhodri, Rolink, Antonius G.·2005·Blood

Abstract

The B-lymphocyte potential of progenitor thymocytes and whether the thymus is colonized by common lymphocyte progenitor cells have been subjects of considerable debate. Herein, we have used limiting dilution analysis to determine the lineage potential of phenotypically defined subpopulations of CD4–CD8– double-negative thymocytes. Culture systems used showed single-hit kinetics and had a high plating efficiency for B-, myeloid, and natural killer cell development. The T-cell potential of sorted cells was confirmed by transferring cells to fetal thymus organ cultures. Our results indicate that the earliest population of CD117+ double-negative cells, although containing potent T-cell developmental potential and significant myeloid and natural killer potential, does not have any residual B-cell potential. Gene transcription analysis also indicated that these double-negative cells contained abundant T and myeloid, but not B cell–specific transcripts. The implications of these results within the context of current models of thymocyte development are discussed.

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Crossref · 10.1182/blood-2004-08-3087

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55 of 55 references verified0 citation errors · 0 not checkable

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  • ETP and DN2 cells can generate myeloid cells if removed from the thymus, whereas pro-T cells past PU.1 expression (DN3 or later) do not make myeloid cells under these conditions.

    “Whereas ETP and DN2 cells can generate myeloid cells if removed from the thymus, pro-T cells that have differentiated past the stage of PU.1 expression in the thymus (i.e., from the DN2 stage to the DN3 stage or later) do not make myeloid cells under these conditions”

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Authors
Balciunaite, G., Ceredig, R., & Rolink, A. G.
Affiliations
  • From the Developmental and Molecular Immunology, Department of Clinical and Biological Sciences (DKBW), University of Basel, Basel, Switzerland; and U548 INSERM, DRDC, CEA-G, Grenoble, France.
  • Inserm (FR)
Venue
Blood
Published
2005-03-01
Volume
105
Issue
5
Pages
1930-1936
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2062319579
Cited by
158
References
55
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 7 · 2020: 3 · 2019: 9 · 2018: 6 · 2017: 2 · 2016: 6 · 2015: 4 · 2014: 5 · 2013: 6 · 2012: 3
FWCI
5.77
Type
journal article
Language
en
Open access
closed
Locations
  • Blood (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
T cell development, double-negative thymocytes, CD4+CD8+ thymocytes, macrophage development, natural killer cell development, CD117, fetal thymus organ culture, gene transcription, single-hit kinetics
MeSH terms
Animals, B-Lymphocytes, Cells, Cultured, Hematopoietic Stem Cells, Immune System, Killer Cells, Natural, Kinetics, Macrophages, T-Lymphocytes, Thymus Gland, Immunophenotyping, Cell Lineage, Leukopoiesis, Mice

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