Evidence map›Paper›PMID 25512343›Full record

ArticleImmunology and cell biology2015

A specific CD4 epitope bound by tregalizumab mediates activation of regulatory T cells by a unique signaling pathway.

Bianca Helling, Martin König, Benjamin Dälken, Andre Engling, Wolfgang Krömer, Katharina Heim, Holger Wallmeier, Jürgen Haas, Brigitte Wildemann, Brigitte Fritz and 8 more

Open access · hybridAbstract read
In one paragraph

Article in Immunology and cell biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.1field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Angiotensin ATFrontiers in immunology · 2022
    Article
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  6. Article
  7. Article
  8. Article
  9. Lenalidomide potentiates CD4Clinical and experimental medicine · 2017
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Neuroimmunotherapies Targeting T Cells: From Pathophysiology to Therapeutic Applications.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2016
    Review
  16. Article
  17. Article
  18. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

18 authors at 4 institutions in 1 country.

Bianca HellingBiotest AG, Dreieich, Germany.
Martin KönigBiotest AG, Dreieich, Germany.
Benjamin DälkenBiotest AG, Dreieich, Germany.
Andre EnglingBiotest AG, Dreieich, Germany.
Wolfgang KrömerBiotest AG, Dreieich, Germany.
Katharina HeimBiotest AG, Dreieich, Germany.
Holger WallmeierCondor Scientific Computing and Consulting, Sulzbach, Germany.
Jürgen HaasDivision of Molecular Neuroimmunology, Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany.
Brigitte WildemannDivision of Molecular Neuroimmunology, Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany.
Brigitte FritzDivision of Molecular Neuroimmunology, Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany.
Helmut JonuleitDepartment of Dermatology, Johannes Gutenberg University, Mainz, Germany.
Jan KubachDepartment of Dermatology, Johannes Gutenberg University, Mainz, Germany.
Theodor DingermannInstitute of Pharmaceutical Biology, Goethe University Frankfurt, Frankfurt, Germany.
Heinfried H RadekeInstitute of Pharmacology and Toxicology, Clinic of the Goethe University, Frankfurt, Germany.
Frank OsterrothBiotest AG, Dreieich, Germany.
Christoph UherekBiotest AG, Dreieich, Germany.
Niklas CzelothBiotest AG, Dreieich, Germany.
Jörg SchüttrumpfBiotest AG, Dreieich, Germany.
Biotest (Germany) · DEUniversity Hospital Heidelberg · DEGoethe University Frankfurt · DEJohannes Gutenberg University Mainz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

CD4(+)CD25(+) regulatory T cells (Tregs) represent a specialized subpopulation of T cells, which are essential for maintaining peripheral tolerance and preventing autoimmunity. The immunomodulatory effects of Tregs depend on their activation status. Here we show that, in contrast to conventional anti-CD4 monoclonal antibodies (mAbs), the humanized CD4-specific monoclonal antibody tregalizumab (BT-061) is able to selectively activate the suppressive properties of Tregs in vitro. BT-061 activates Tregs by binding to CD4 and activation of signaling downstream pathways. The specific functionality of BT-061 may be explained by the recognition of a unique, conformational epitope on domain 2 of the CD4 molecule that is not recognized by other anti-CD4 mAbs. We found that, due to this special epitope binding, BT-061 induces a unique phosphorylation of T-cell receptor complex-associated signaling molecules. This is sufficient to activate the function of Tregs without activating effector T cells. Furthermore, BT-061 does not induce the release of pro-inflammatory cytokines. These results demonstrate that BT-061 stimulation via the CD4 receptor is able to induce T-cell receptor-independent activation of Tregs. Selective activation of Tregs via CD4 is a promising approach for the treatment of autoimmune diseases where insufficient Treg activity has been described. Clinical investigation of this new approach is currently ongoing.

Indexed as

Amino Acid SequenceAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedCD4 AntigensCells, CulturedCrystallography, X-RayEpitopes, B-LymphocyteHumansImmunosuppressive AgentsInterleukin-2 Receptor alpha SubunitLymphocyte ActivationMolecular Sequence DataPhosphorylationProtein BindingProtein ConformationSignal TransductionAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedBT-061CD4 AntigensEpitopes, B-LymphocyteImmunosuppressive AgentsInterleukin-2 Receptor alpha SubunitTransforming Growth Factor beta

Identifiers

PMID25512343
PMCPMC4407014
OpenAlexW2011780344

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.