Cited by 307T-cell and B-cell ImmunologyHematopoietic Stem Cell TransplantationImmunodeficiency and Autoimmune Disorders

Life after the thymus: CD31+ and CD31− human naive CD4+ T-cell subsets

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Kohler, Siegfried, Thiel, Andreas·2009·Blood

Abstract

Early in life, thymic export establishes the size and the diversity of the human naive T-cell pool. Yet, on puberty thymic activity drastically decreases. Because the overall size of the naive T-cell pool decreases only marginally during ageing, peripheral postthymic expansion of naive T cells has been postulated to account partly for the maintenance of T-cell immunity in adults. So far, the analysis of these processes had been hampered by the inability to distinguish recent thymic emigrants from proliferated, peripheral, naive T cells. However, recently, CD31 has been introduced as a marker to distinguish 2 subsets of naive CD4+ T cells with distinct T-cell receptor excision circle (TREC) content in the peripheral blood of healthy humans. Here, we review studies that have characterized TREChi CD31+ thymicnaive CD4+ T cells and have accordingly used the assessment of this distinct subset of naive CD4+ T cells as a correlate of thymic activity. We will discuss further potential clinical applications and how more research on CD31+ thymicnaive and CD31− centralnaive CD4+ T cells may foster our knowledge of the impact of thymic involution on immune competence.

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Crossref · 10.1182/blood-2008-02-139154

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72 of 72 references verified0 citation errors · 0 not checkable

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  • Lymphopenia leads to an increase in the homeostatic proliferation of naive T cells, which is usually not sufficient to keep their number constant.

    “Lymphopenia leads to an increase in the homeostatic proliferation of naive T cells, which is usually not sufficient to keep their number constant [332, 333].”

    From Guidelines for the use of flow cytometry and cell sorting in immunological studies (third edition) (2021) · cites this paper as [332]

    In “The consequences of human homeostatic naive CD4+ T-cell proliferation for immunity” (page unavailable), the paper reports increased peripheral homeostatic T-cell proliferation in lymphopenic mice. It does not say that this proliferation is usually insufficient to maintain naive T-cell numbers; in “Homeostatic proliferation of human naive Th cells” (page unavailable), it instead describes naive T-cell numbers in young and elderly humans as relatively stable. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Partial lymphopenia results in increasing naive T-cell homeostatic proliferation, although this is not sufficient to maintain a constant number of these cells.

    “This setting of partial lymphopenia results in increasing naive T-cell homeostatic proliferation, although this is not sufficient to maintain a constant number of these cells [77, 78].”

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3 of the 75 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. Utsuyama M, Hirokawa K, Kurashima C, et al. Differential age-change in the numbers of CD4ϩCD45RAϩ and CD4ϩCD29ϩ T cell sub- sets in human peripheral blood. Mech Ageing Dev. 1992;63:57-68.
  2. Tanchot C, Le Campion A, Leaument S, Dautigny N, Lucas B. Naive CD4(ϩ) lymphocytes convert to anergic or memory-like cells in T cell-deprived recipients. Eur J Immunol. 2001;31:2256-2265.

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Authors
Kohler, S., & Thiel, A.
Affiliations
  • Clinical Immunology Group, Deutsches Rheuma-Forschungszentrum Berlin, Berlin; and
  • German Rheumatism Research Centre (DE)
Venue
Blood
Published
2009-01-22
Volume
113
Issue
4
Pages
769-774
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W1999924197
Cited by
307
References
75
Citations by year
2026: 4 · 2025: 10 · 2024: 12 · 2023: 6 · 2022: 11 · 2021: 25 · 2020: 18 · 2019: 23 · 2018: 21 · 2017: 18 · 2016: 24 · 2015: 21 · 2014: 25 · 2013: 23 · 2012: 18
FWCI
1.10
Type
journal article
Language
en
Open access
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 › Immunology and Microbiology › Immunology › Immunodeficiency and Autoimmune Disorders
Keywords
CD31, naive CD4+ T cells, thymic emigrants, thymic involution, TREC, T cell receptor diversity, immunosenescence, T cell subsets
MeSH terms
Animals, Homeostasis, Humans, Immunity, Innate, Thymus Gland, CD4-Positive T-Lymphocytes, Platelet Endothelial Cell Adhesion Molecule-1, Cell Proliferation

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