Cited by 79Viral-associated cancers and disordersT-cell and B-cell ImmunologyHerpesvirus Infections and Treatments

Cytotoxic CD4+ T cell responses to EBV contrast with CD8 responses in breadth of lytic cycle antigen choice and in lytic cycle recognition

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Long, Heather M, Leese, Alison M, Chagoury, Odette L, Connerty, Shawn R, Quarcoopome, Jared, Quinn, Laura L, Shannon-Lowe, Claire, Rickinson, Alan B·2011·The Journal of Immunology

Abstract

EBV, a B lymphotropic herpesvirus, encodes two immediate early (IE)-, >30 early (E)-, and >30 late (L)-phase proteins during its replication (lytic) cycle. Despite this, lytic Ag-induced CD8 responses are strongly skewed toward IE and a few E proteins only, all expressed before HLA I presentation is blocked in lytically infected cells. For comparison, we examined CD4+ T cell responses to eight IE, E, or L proteins, screening 14 virus-immune donors to overlapping peptide pools in IFN-γ ELISPOT assays, and established CD4+ T cell clones against 12 defined epitopes for target-recognition assays. We found that the lytic Ag-specific CD4+ T cell response differs radically from its CD8 counterpart in that it is widely distributed across IE, E, and L Ag targets, often with multiple reactivities detectable per donor and with IE, E, or L epitope responses being numerically dominant, and that all CD4+ T cell clones, whether IE, E, or L epitope-specific, show strong recognition of EBV-transformed B cell lines, despite the lines containing only a small fraction of lytically infected cells. Efficient recognition occurs because lytic Ags are released into the culture and are acquired and processed by neighboring latently infected cells. These findings suggested that lytic Ag-specific CD4 responses are driven by a different route of Ag display than drives CD8 responses and that such CD4 effectors could be therapeutically useful against EBV-driven lymphoproliferative disease lesions, which contain similarly small fractions of EBV-transformed cells entering the lytic cycle.

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  • Senescent T cells within both CD4+ and CD8+ subsets express high levels of intracellular granules containing perforin and granzyme B and can mediate spontaneous antigen-specific cytotoxicity against infected target cells.

    “Senescent T cells within both CD4 + and CD8 + subsets express high levels of intracellular granules containing the cytotoxic proteins perforin and granzyme B and can mediate spontaneous antigen-specific cytotoxicity against infected target cells [47-49].”

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Authors
Long, H. M., Leese, A. M., Chagoury, O. L., Connerty, S. R., Quarcoopome, J., Quinn, L. L., Shannon-Lowe, C., & Rickinson, A. B.
Affiliations
University of Birmingham (GB)
Corresponding author
Rickinson, Alan B
Venue
The Journal of Immunology
Published
2011-07-01
Volume
187
Issue
1
Pages
92-101
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2161252431
Cited by
79
References
50
Citations by year
2026: 2 · 2025: 2 · 2024: 4 · 2023: 3 · 2022: 5 · 2021: 7 · 2020: 2 · 2019: 5 · 2018: 8 · 2017: 6 · 2016: 10 · 2015: 9 · 2014: 7 · 2013: 5 · 2012: 3
FWCI
2.52
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • University of Birmingham Research Portal (University of Birmingham) (submittedVersion)
Funders
  • Leukaemia and Lymphoma Research
  • U.S. Public Health Service (G0901755-E02/1)
  • Medical Research Council (G0901755)
Topics
  • Health Sciences › Medicine › Oncology › Viral-associated cancers and disorders
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Epidemiology › Herpesvirus Infections and Treatments
Keywords
Epstein-Barr virus, CD4+ T cell responses, CD8+ T cell responses, immediate-early proteins, early proteins, late proteins, antigen presentation, HLA class I, EBV-transformed B cell lines, T cell clones
MeSH terms
Antigens, Viral, Cells, Cultured, Clone Cells, Cytotoxicity Tests, Immunologic, Herpesvirus 4, Human, Humans, Interferon-gamma, Phosphoproteins, Virus Replication, CD4-Positive T-Lymphocytes, Trans-Activators, Gene Expression Regulation, Viral, Immediate-Early Proteins, CD8-Positive T-Lymphocytes, Epitope Mapping, Epitopes, T-Lymphocyte

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