Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 387

The DOI matches its Crossref record.

CD28- T lymphocytes. Antigenic and functional properties

Azuma, M, Phillips, J H, Lanier, L L·1993·The Journal of Immunology

Abstract

A subset of CD8+ alpha beta-TCR/CD3+ T lymphocytes in adult human peripheral blood lacks expression of CD28, a membrane receptor for the B7/BB1 B cell differentiation Ag that is involved in T cell activation. CD28-8+ T cells were not observed in the thymus and were present at only low frequency in cord blood, suggesting that these cells may represent a type of “memory” population. Consistent with this interpretation, CD28-8+ T cells were morphologically large, granular lymphocytes and expressed CD54 (intercellular adhesion molecule-1), CD58 (lymphocyte function-associated Ag-3 (LFA)), and high levels of CD11a (LFA-1), but did not express Ag associated with acute activation (e.g., HLA-DR, CD25, CD69). Freshly isolated CD28-8+ T lymphocytes mediated potent anti-CD3 redirected cytotoxicity against FcR-bearing targets, demonstrating that the CD3/TCR complex is functional and that these cells possess cytolytic activity. However, the anti-CD3-induced proliferative response of CD28-8+ T cells was substantially less than CD28+8+ T cells and this deficiency could not be overcome by addition of exogenous IL-2. A large panel of T cell clones were produced from the CD28+8+ and CD28-8+ T cell populations by single cell sorting using a flow cytometer. CD28 expression was stable on clones derived from CD28+8+ T lymphocytes, whereas CD28 expression was quite variable and apparently reexpressed on some clones generated from the CD28-8+ T cell population. As with the freshly isolated cells, CD28-8+ T cell clones were cytotoxic, but anergic to anti-CD3- induced proliferation and could not be costimulated using B7 or CD58 (LFA-3) murine L cell transfectants. These results indicate that CD28- and CD28+ T cells may play different roles in an immune response.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.4049/jimmunol.150.4.1147

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

Metadata

Authors
Azuma, M., Phillips, J. H., & Lanier, L. L.
Venue
The Journal of Immunology
Published
1993-02
Volume
150
Issue
4
Pages
1147-1159
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2101881039
Cited by
387
References
0
FWCI
6.56
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

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.