Cited by 250T-cell and B-cell ImmunologyImmunotherapy and Immune ResponsesPsoriasis: Treatment and Pathogenesis

Cutting Edge: Recent Immune Status Determines the Source of Antigens That Drive Homeostatic T Cell Expansion

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Kieper, William C, Troy, Amy, Burghardt, J Theodore, Ramsey, Chris, Lee, Joon Youb, Jiang, Han-Qing, Dummer, Wolfgang, Shen, Hao +2 more·2005·The Journal of Immunology

Abstract

Homeostatic proliferation of naive T cells transferred to T cell-deficient syngeneic mice is driven by low-affinity self-MHC/peptide ligands and the cytokine IL-7. In addition to homeostatic proliferation, a subset of naive T cells undergoes massive proliferation in chronically immunodeficient hosts, but not in irradiated normal hosts. Such rapid T cell proliferation occurs largely independent of homeostatic factors, because it was apparent in the absence of IL-7 and in T cell-sufficient hosts devoid of functional T cell immunity. Strikingly, immunodeficient mice raised under germfree conditions supported only slow homeostatic proliferation, but not the marked T cell proliferation observed in conventionally raised immunodeficient mice. Thus, polyclonal naive T cell expansion in T cell-deficient hosts can be driven predominantly by either self-Ags or foreign Ags depending on the host's previous state of T cell immunocompetency.

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  • The microbiota orchestrates the local immune system in the intestine and shapes immune and non-immune cells located at distal sites and acting systemically.

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Authors
Kieper, W. C., Troy, A., Burghardt, J. T., Ramsey, C., Lee, J. Y., Jiang, H.-Q., Dummer, W., Shen, H., Cebra, J. J., & Surh, C. D.
Affiliations
  • Scripps Research Institute (US)
  • University of Pennsylvania (US)
Corresponding author
  • Ramsey, Chris
  • Dummer, Wolfgang
Venue
The Journal of Immunology
Published
2005-03
Volume
174
Issue
6
Pages
3158-3163
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1519531812
Cited by
250
References
23
Citations by year
2026: 1 · 2025: 5 · 2024: 8 · 2023: 9 · 2022: 7 · 2021: 11 · 2020: 6 · 2019: 9 · 2018: 8 · 2017: 17 · 2016: 13 · 2015: 15 · 2014: 11 · 2013: 13 · 2012: 17
FWCI
6.03
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Crohn's and Colitis Foundation of America
  • Crohn's and Colitis Foundation
  • National Institutes of Health (5r01ai041079-04)
  • U.S. Public Health Service
  • National Institute on Aging (AG 20186, R01AG020186)
  • National Institute of Allergy and Infectious Diseases (R01AI045809, AI37108, AI07244, AI45809, AI41079)
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 › Psoriasis: Treatment and Pathogenesis
Keywords
naive T cells, T cell-deficient mice, IL-7, immunodeficiency, germ-free mice, antigen source
MeSH terms
Animals, Antigens, B-Lymphocytes, Homeostasis, Immunologic Deficiency Syndromes, Lymphocyte Activation, Mice, Inbred C57BL, Mice, Transgenic, T-Lymphocytes, Interleukin-7, Mice, SCID, Genes, RAG-1, Mice, Knockout, Cell Proliferation, Mice

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