Cited by 38Monoclonal and Polyclonal Antibodies ResearchT-cell and B-cell ImmunologyImmunotherapy and Immune Responses

A bispecific single-chain antibody that mediates target cell-restricted, supra-agonistic CD28 stimulation and killing of lymphoma cells

Otz, T, Große-Hovest, L, Hofmann, M, Rammensee, H-G, Jung, G·2009·Leukemia

Abstract

We have previously reported that r28M, a recombinant bispecific single-chain antibody directed to a melanoma-associated proteoglycan (NG2) and the costimulatory CD28 molecule on T cells, induced T-cell activation, which resulted in tumor-cell killing. T-cell activation did not require a primary signal through the T-cell antigen receptor (TCR)/CD3 complex and depended on the presence of NG2-positive tumor cells. Here, we further investigate this phenomenon of a target cell-restricted, supra-agonistic CD28 stimulation with bispecific antibodies. To this end, we exchanged the NG2 targeting part of r28M with a single-chain antibody directed to the B-cell associated antigen CD20. The resulting bispecific single-chain antibody, termed r2820, induced supra-agonistic T-cell activation, which required the presence of autologous normal or malignant B cells, respectively. Once activated, T cells were capable of destroying lymphoma target cells.These findings demonstrate that supra-agonistic CD28 stimulation with bispecific single-chain antibodies is a robust and readily reproducible phenomenon. In the context of experimental tumor therapy, it may provide a valuable alternative to the unrestricted T-cell activation induced by 'super-agonistic', monospecific CD28 antibodies.

Integrity signals

Registry

Crossref · 10.1038/leu.2008.271

Cites

18 of 18 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The effective mode of action of rM28 was extended to cytolysis of lymphoma cells using an anti-CD28 x CD20 bispecific tandem scFv with supra-agonistic properties.

    “This effective mode of action was recently extended to the cytolysis of lymphoma cells using an anti-CD28 x CD20 bispecific tandem scFv endowed with the same supra-agonistic properties. 41”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Otz, T., Große-Hovest, L., Hofmann, M., Rammensee, H.-G., & Jung, G.
Affiliations
University of Tübingen (DE)
Corresponding author
Jung, G
Venue
Leukemia
Published
2008-10-02
Volume
23
Issue
1
Pages
71-77
ISSN
  • 0887-6924 (ISSN-L)
  • 1476-5551
OpenAlex
W2051530139
Cited by
38
References
18
Citations by year
2026: 1 · 2024: 3 · 2022: 2 · 2021: 1 · 2020: 1 · 2019: 1 · 2018: 2 · 2017: 1 · 2015: 4 · 2014: 4 · 2013: 4 · 2012: 4
FWCI
2.57
Type
journal article
Language
en
Open access
closed
Locations
  • Leukemia (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Deutsche Forschungsgemeinschaft
  • Deutsche Krebshilfe
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
bispecific single-chain antibody, CD28, T cell activation, lymphoma, CD20, NG2, T cell costimulation, tumor cell killing, cancer immunotherapy
MeSH terms
Chondroitin Sulfate Proteoglycan 4, Antigens, Antineoplastic Agents, B-Lymphocytes, Cell Line, Cytotoxicity, Immunologic, Humans, Lymphocyte Activation, Lymphoma, Proteoglycans, T-Lymphocytes, Antibodies, Bispecific, CD28 Antigens, Jurkat Cells

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