Cited by 84HIV Research and TreatmentT-cell and B-cell Immunologyvaccines and immunoinformatics approaches

Proteome-wide analysis of HIV-specific naive and memory CD4+ T cells in unexposed blood donors

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Campion, Suzanne L., Brodie, Tess M., Fischer, William, Korber, Bette T., Rossetti, Astrea, Goonetilleke, Nilu, McMichael, Andrew J., Sallusto, Federica·2014·Journal of Experimental Medicine

Abstract

The preexisting HIV-1–specific T cell repertoire must influence both the immunodominance of T cells after infection and immunogenicity of vaccines. We directly compared two methods for measuring the preexisting CD4+ T cell repertoire in healthy HIV-1–negative volunteers, the HLA-peptide tetramer enrichment and T cell library technique, and show high concordance (r = 0.989). Using the library technique, we examined whether naive, central memory, and/or effector memory CD4+ T cells specific for overlapping peptides spanning the entire HIV-1 proteome were detectable in 10 HLA diverse, HIV-1–unexposed, seronegative donors. HIV-1–specific cells were detected in all donors at a mean of 55 cells/million naive cells and 38.9 and 34.1 cells/million in central and effector memory subsets. Remarkably, peptide mapping showed most epitopes recognized by naive (88%) and memory (56%) CD4+ T cells had been previously reported in natural HIV-1 infection. Furthermore, 83% of epitopes identified in preexisting memory subsets shared epitope length matches (8–12 amino acids) with human microbiome proteins, suggestive of a possible cross-reactive mechanism. These results underline the power of a proteome-wide analysis of peptide recognition by human T cells for the identification of dominant antigens and provide a baseline for optimizing HIV-1–specific helper cell responses by vaccination.

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Authors
Campion, S. L., Brodie, T. M., Fischer, W., Korber, B. T., Rossetti, A., Goonetilleke, N., McMichael, A. J., & Sallusto, F.
Affiliations
  • University of Oxford (GB)
  • Institute for Research in Biomedicine (CH)
  • Theoretical Biology and Biophysics Group, Los Alamos National Laboratory, Los Alamos, NM 87545 3
  • Los Alamos National Laboratory (US)
  • University of North Carolina at Chapel Hill (US)
Corresponding author
Campion, Suzanne L.
Venue
Journal of Experimental Medicine
Published
2014-06-23
Volume
211
Issue
7
Pages
1273-1280
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2105492553
Cited by
84
References
31
Citations by year
2026: 2 · 2024: 2 · 2023: 6 · 2022: 9 · 2021: 11 · 2020: 10 · 2019: 8 · 2018: 4 · 2017: 7 · 2016: 8 · 2015: 9 · 2014: 8
FWCI
4.74
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Experimental Medicine (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • reroDoc Digital Library (submittedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • UNC Libraries
Funders
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (147662)
  • National Institutes of Health (HHSN272201300006C), AI-100645)
  • Medical Research Council (MR/K012037/1)
  • National Institute of Allergy and Infectious Diseases (AI-100645, HHSN-272201300006C, UM1AI100645, P30AI027763)
Topics
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
Keywords
CD4+ T cells, naive T cells, central memory T cells, effector memory T cells, epitope mapping, cross-reactivity, immunodominance
MeSH terms
Antigens, Viral, Cross Reactions, Female, Humans, Immunologic Memory, Male, Peptides, Viral Proteins, CD4-Positive T-Lymphocytes, HIV-1, AIDS Vaccines, Epitopes, T-Lymphocyte, Proteome, Microbiota

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