Evidence map›Paper›PMID 34750385›Full record

ArticleNature communications2021

Transient mTOR inhibition rescues 4-1BB CAR-Tregs from tonic signal-induced dysfunction.

Baptiste Lamarthée, Armance Marchal, Soëli Charbonnier, Tifanie Blein, Juliette Leon, Emmanuel Martin, Lucas Rabaux, Katrin Vogt, Matthias Titeux, Marianne Delville and 13 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 4% 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

52 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Regulatory T cells in cancer and inflammation.Signal transduction and targeted therapy · 2026
    Review
  6. bioRxiv : the preprint server for biology · 2026
    Article
  7. Article
  8. Review
  9. Engineered CD40-biosensor-expressing Treg cells as a cell therapy approach for inflammatory diseases.Molecular therapy : the journal of the American Society of Gene Therapy · 2026
    Article
  10. Review
  11. Review
  12. Review
  13. Review
  14. CD8 regulatory T cell therapy in transplantation: a new path to clinical success?Transplant international : official journal of the European Society for Organ Transplantation · 2026
    Article
  15. 3-in-oneiScience · 2025
    Article
  16. Article
  17. HLA-A2 CAR/IL-2-CISC engineered Treg display robustMolecular therapy. Methods & clinical development · 2025
    Article
  18. Review
  19. Review
  20. Presetting CAR-T cells during ex vivo biomanufacturing.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

23 authors at 6 institutions in 3 countries.

Baptiste Lamarthée *Laboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.ORCID 0000-0002-8417-1661
Armance Marchal *Laboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.
Soëli Charbonnier *Laboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.ORCID 0000-0002-3185-635X
Tifanie Blein *Laboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.ORCID 0000-0002-3416-3786
Juliette LeonDepartment of Immunology, Harvard Medical School, Boston, MA, 02115, USA.ORCID 0000-0001-5314-8154
Emmanuel MartinLymphocyte activation and susceptibility to EBV, INSERM UMR 1163, IHU IMAGINE, Paris, France.ORCID 0000-0003-4211-7373
Lucas RabauxLaboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.
Katrin VogtDepartment of Immunology, Charité University Hospital, Berlin, Germany.
Matthias TiteuxMaladie génétique cutanée, INSERM UMR 1163, IHU IMAGINE, Paris, France.
Marianne DelvilleLaboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.ORCID 0000-0002-9585-2307
Hélène VinçonLaboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.ORCID 0000-0002-6656-631X
Emmanuelle SixLaboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.ORCID 0000-0001-7806-0968
Nicolas PalletUniversité de Paris, INSERM U1138, Centre de Recherche des Cordeliers, 75006, Paris, France.
David MichonneauUniversité de Paris, Paris, France.ORCID 0000-0003-4553-3065
Dany AnglicheauUniversité de Paris, Paris, France.ORCID 0000-0001-5793-6174
Christophe LegendreUniversité de Paris, Paris, France.
Jean-Luc TaupinUniversité de Paris, Paris, France.
Ivan NemazanyyPlateforme de Métabolique, Structure Fédérative de Recherche, Necker, INSERM US24/CNRS UMS, 3633, Paris, France.ORCID 0000-0001-8080-839X
Birgit SawitzkiDepartment of Immunology, Charité University Hospital, Berlin, Germany.ORCID 0000-0001-8166-8579
Sylvain LatourLymphocyte activation and susceptibility to EBV, INSERM UMR 1163, IHU IMAGINE, Paris, France.
Marina CavazzanaLaboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.ORCID 0000-0002-0264-0891
Isabelle AndréLaboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France.ORCID 0000-0002-3905-9910
Julien ZuberLaboratoire de lymphohématopoïèse humaine, INSERM UMR 1163, IHU IMAGINE, Paris, France. julien.zuber@aphp.fr.ORCID 0000-0001-6741-9330
Inserm · FRHôpital Necker-Enfants Malades · FRCharité - Universitätsmedizin Berlin · DECentre National de la Recherche Scientifique · FRHarvard University · USUniversité Paris Cité · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The use of chimeric antigen receptor (CAR)-engineered regulatory T cells (Tregs) has emerged as a promising strategy to promote immune tolerance. However, in conventional T cells (Tconvs), CAR expression is often associated with tonic signaling, which can induce CAR-T cell dysfunction. The extent and effects of CAR tonic signaling vary greatly according to the expression intensity and intrinsic properties of the CAR. Here, we show that the 4-1BB CSD-associated tonic signal yields a more dramatic effect in CAR-Tregs than in CAR-Tconvs with respect to activation and proliferation. Compared to CD28 CAR-Tregs, 4-1BB CAR-Tregs exhibit decreased lineage stability and reduced in vivo suppressive capacities. Transient exposure of 4-1BB CAR-Tregs to a Treg stabilizing cocktail, including an mTOR inhibitor and vitamin C, during ex vivo expansion sharply improves their in vivo function and expansion after adoptive transfer. This study demonstrates that the negative effects of 4-1BB tonic signaling in Tregs can be mitigated by transient mTOR inhibition.

Indexed as

AnimalsCD28 AntigensGraft vs Host DiseaseHLA-A2 AntigenHumansImmunosuppressive AgentsImmunotherapy, AdoptiveJurkat CellsMaleMiceMice, Inbred NODMice, KnockoutMice, SCIDReceptors, Chimeric AntigenSignal TransductionSirolimusCD28 AntigensHLA-A2 AntigenImmunosuppressive AgentsReceptors, Chimeric AntigenSirolimusTOR Serine-Threonine KinasesTumor Necrosis Factor Receptor Superfamily, Member 9

Identifiers

PMID34750385
PMCPMC8575891
OpenAlexW3214321036

What OpenQuestion holds

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LicenceCC BY
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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.