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Cited by 265

The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.

CD28-B7 interactions allow the induction of CD8+ cytotoxic T lymphocytes in the absence of exogenous help.

Open access
Harding, F A, Allison, J P·1993·The Journal of experimental medicine

Abstract

The activation requirements for the generation of CD8+ cytotoxic T cells (CTL) are poorly understood. Here we demonstrate that in the absence of exogenous help, a CD28-B7 interaction is necessary and sufficient for generation of class I major histocompatibility complex-specific CTL. Costimulation is required only during the inductive phase of the response, and not during the effector phase. Transfection of the CD28 counter receptor, B7, into nonstimulatory P815 cells confers the ability to elicit P815-specific CTL, and this response can be inhibited by anti-CD28 Fab or by the chimeric B7-binding protein CTLA4Ig. Anti-CD28 monoclonal antibody (mAb) can provide a costimulatory signal to CD8+ T cells when the costimulatory capacity of splenic stimulators is destroyed by chemical fixation. CD28-mediated signaling provokes the release of interleukin 2 (IL-2) from the CD8+ CTL precursors, as anti-CD28 mAb could be substituted for by the addition of IL-2, and an anti-IL-2 mAb can block the generation of anti-CD28-induced CTL. CD4+ cells are not involved in the costimulatory response in the systems examined. We conclude that CD8+ T cell activation requires two signals: an antigen-specific signal mediated by the T cell receptor, and an additional antigen nonspecific signal provided via a CD28-B7 interaction.

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Metadata

Authors
Harding, F. A., & Allison, J. P.
Venue
The Journal of experimental medicine
Published
1993-06-01
Volume
177
Issue
6
Pages
1791-1796
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2143188779
Cited by
265
References
26
FWCI
10.93
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: CD28-B7 interactions allow the induction of CD8+ cytotoxic T lymphocytes in the absence of exogenous help. https://app.cochat.ai/papers/10.1084/jem.177.6.1791
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Harding, F. A., & Allison, J. P. (1993). CD28-B7 interactions allow the induction of CD8+ cytotoxic T lymphocytes in the absence of exogenous help. The Journal of experimental medicine. https://doi.org/10.1084/jem.177.6.1791

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.