Cited by 352T-cell and B-cell ImmunologyImmunotherapy and Immune ResponsesImmune responses and vaccinations

Professional Memory CD4+ T Lymphocytes Preferentially Reside and Rest in the Bone Marrow

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Tokoyoda, Koji, Zehentmeier, Sandra, Hegazy, Ahmed N., Albrecht, Inka, Grün, Joachim R., Löhning, Max, Radbruch, Andreas·2009·Immunity

Abstract

CD4(+) T lymphocytes are key to immunological memory. Here we show that in the memory phase of specific immune responses, most of the memory CD4(+) T lymphocytes had relocated into the bone marrow (BM) within 3-8 weeks after their generation-a process involving integrin alpha2. Antigen-specific memory CD4(+) T lymphocytes highly expressed Ly-6C, unlike most splenic CD44(hi)CD62L(-) CD4(+) T lymphocytes. In adult mice, more than 80% of Ly-6C(hi)CD44(hi)CD62L(-) memory CD4(+) T lymphocytes were in the BM. In the BM, they associated to IL-7-expressing VCAM-1(+) stroma cells. Gene expression and proliferation were downregulated, indicating a resting state. Upon challenge with antigen, they rapidly expressed cytokines and CD154 and efficiently induced the production of high-affinity antibodies by B lymphocytes. Thus, in the memory phase of immunity, memory helper T cells are maintained in BM as resting but highly reactive cells in survival niches defined by IL-7-expressing stroma cells.

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Crossref · 10.1016/j.immuni.2009.03.015

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  • Trm have been defined as independent populations by tissue retention in parabiosis experiments, by distinguishing transcriptional profiles, by exclusive Ag receptor repertoires and specificities, and by exclusive persistence in transplanted tissues.

    “They have been defined as independent populations by tissue retention in parabiosis experiments [239, 240], by distinguishing transcriptional profiles [230, 241-245], by exclusive Ag receptor repertoires and specificities [243, 244, 246], and by exclusive persistence in transplanted tissues [247, 248].”

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Authors
Tokoyoda, K., Zehentmeier, S., Hegazy, A. N., Albrecht, I., Grün, J. R., Löhning, M., & Radbruch, A.
Affiliations
German Rheumatism Research Centre (DE)
Corresponding author
Tokoyoda, Koji
Venue
Immunity
Publisher
Elsevier BV
Published
2009-05
Volume
30
Issue
5
Pages
721-730
ISSN
1074-7613 (ISSN-L)
OpenAlex
W2065708749
Cited by
352
References
48
Citations by year
2026: 10 · 2025: 11 · 2024: 4 · 2023: 4 · 2022: 11 · 2021: 18 · 2020: 15 · 2019: 31 · 2018: 27 · 2017: 24 · 2016: 27 · 2015: 22 · 2014: 23 · 2013: 32 · 2012: 22
FWCI
13.37
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
memory CD4+ T cells, bone marrow, T cell homing, integrin alpha2, Ly6C, CD44, L-selectin, IL-7, VCAM-1, stromal cells, T cell proliferation, CD154, antibody production, immunological memory
MeSH terms
Animals, Antigens, Ly, B-Lymphocytes, Bone Marrow, Immunologic Memory, CD4-Positive T-Lymphocytes, Down-Regulation, Interleukin-7, Gene Expression, Stromal Cells, Oligonucleotide Array Sequence Analysis, Integrin alpha2, Mice

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