Journal article
Alterations in antigen-specific naive CD4 T cell precursors after sepsis impairs their responsiveness to pathogen challenge
The Journal of immunology (1950), Vol.194(4), pp.1609-1620
02/15/2015
DOI: 10.4049/jimmunol.1401711
PMCID: PMC4412277
PMID: 25595784
Abstract
Patients surviving the acute stages of sepsis develop compromised T cell immunity and increased susceptibility to infection. Little is known about the decreased CD4 T cell function after sepsis. We tracked the loss and recovery of endogenous Ag-specific CD4 T cell populations after cecal ligation and puncture-induced sepsis and analyzed the CD4 T cell response to heterologous infection during or after recovery. We observed that the sepsis-induced early loss of CD4 T cells was followed by thymic-independent numerical recovery in the total CD4 T cell compartment. Despite this numerical recovery, we detected alterations in the composition of naive CD4 T cell precursor pools, with sustained quantitative reductions in some populations. Mice that had experienced sepsis and were then challenged with epitope-bearing, heterologous pathogens demonstrated significantly reduced priming of recovery-impaired Ag-specific CD4 T cell responses, with regard to both magnitude of expansion and functional capacity on a per-cell basis, which also correlated with intrinsic changes in Vβ clonotype heterogeneity. Our results demonstrate that the recovery of CD4 T cells from sepsis-induced lymphopenia is accompanied by alterations to the composition and function of the Ag-specific CD4 T cell repertoire.
Details
- Title: Subtitle
- Alterations in antigen-specific naive CD4 T cell precursors after sepsis impairs their responsiveness to pathogen challenge
- Creators
- Javier Cabrera-Perez - Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota Medical School, Minneapolis, MN 55455; Medical Scientist Training Program, University of Minnesota Medical School, Minneapolis, MN 55455Stephanie A Condotta - Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA 52242Britnie R James - Department of Urology, University of Minnesota Medical School, Minneapolis, MN 55455Sakeen W Kashem - Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota Medical School, Minneapolis, MN 55455; Medical Scientist Training Program, University of Minnesota Medical School, Minneapolis, MN 55455Erik L Brincks - Department of Urology, University of Minnesota Medical School, Minneapolis, MN 55455Deepa Rai - Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA 52242Tamara A Kucaba - Department of Urology, University of Minnesota Medical School, Minneapolis, MN 55455Vladimir P Badovinac - Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA 52242; Interdisciplinary Program in Immunology, University of Iowa Carver College of Medicine, Iowa City, IA 52242Thomas S Griffith - Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota Medical School, Minneapolis, MN 55455; Department of Urology, University of Minnesota Medical School, Minneapolis, MN 55455; Masonic Cancer Center, University of Minnesota Medical School, Minneapolis, MN 55455; Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55455; and Minneapolis VA Health Care System, Minneapolis, MN 55417 tgriffit@umn.edu
- Resource Type
- Journal article
- Publication Details
- The Journal of immunology (1950), Vol.194(4), pp.1609-1620
- DOI
- 10.4049/jimmunol.1401711
- PMID
- 25595784
- PMCID
- PMC4412277
- NLM abbreviation
- J Immunol
- ISSN
- 0022-1767
- eISSN
- 1550-6606
- Publisher
- United States
- Grant note
- AI83286 / NIAID NIH HHS I01 BX001324 / BLRD VA R01 AI114543 / NIAID NIH HHS R01 AI083286 / NIAID NIH HHS 2T32AI007313 / NIAID NIH HHS P30 CA077598 / NCI NIH HHS R01 GM113961 / NIGMS NIH HHS AI114543 / NIAID NIH HHS
- Language
- English
- Date published
- 02/15/2015
- Academic Unit
- Microbiology and Immunology; Pathology
- Record Identifier
- 9984047778002771
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