Evidence map›Paper›PMID 19179471›Full record

ArticleBlood2009

CTLA-4 on alloreactive CD4 T cells interacts with recipient CD80/86 to promote tolerance.

Josef Kurtz, Forum Raval, Casey Vallot, Jayden Der, Megan Sykes

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Review
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  4. Article
  5. Review
  6. Article
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  8. Article
  9. Costimulatory pathways in transplantation.Seminars in immunology · 2011
    Article
  10. Roles of CD28, CTLA4, and inducible costimulator in acute graft-versus-host disease in mice.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2011
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Transplantation tolerance through mixed chimerism.Nature reviews. Nephrology · 2010
    Review
  16. Recipient dendritic cells, but not B cells, are required antigen-presenting cells for peripheral alloreactive CD8+ T-cell tolerance.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2010
    Article
  17. Article
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  19. Article
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

5 authors at 2 institutions in 1 country.

Josef KurtzBone Marrow Transplantation Section, Transplantation Biology Research Center, Massachusetts General Hospital/Harvard Medical School, Boston, MA 02129, USA.
Forum Raval
Casey Vallot
Jayden Der
Megan Sykes
Massachusetts General Hospital · USHarvard University · US

Funding

MIXED CHIMERISM AS AN APPROACH TO TRANSPLANT TOLERANCER01HL049915 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI SYKES, MEGAN · 1993 to 2010
$3.9M
NHLBI NIH HHS R01 HL049915NHLBI NIH HHS R01HL49915
6 · The paper itself

Abstract

Although the inhibitory receptor CTLA-4 (CD152) has been implicated in peripheral CD4 T-cell tolerance, its mechanism of action remains poorly defined. We analyzed mechanisms of CD4 cell tolerance in a model of tolerance induction involving establishment of mixed hematopoietic chimerism in recipients of fully MHC-mismatched allogeneic bone marrow cells with anti-CD154 mAb. Animals lacking CD80 and CD86 failed to achieve chimerism. We detected no T cell-intrinsic requirement for CD28 for chimerism induction. However, a CD4 T cell-intrinsic signal through CTLA-4 was shown to be essential within the first 48 hours of exposure to alloantigen for the establishment of tolerance and mixed chimerism. This signal must be provided by a recipient CD80/86(+) non-T-cell population. Donor CD80/86 expression was insufficient to achieve tolerance. Together, our findings demonstrate a surprising role for interactions of CTLA-4 expressed by alloreactive peripheral CD4 T cells with CD80/86 on recipient antigen-presenting cells (APCs) in the induction of early tolerance, suggesting a 3-cell tolerance model involving directly alloreactive CD4 cells, donor antigen-expressing bone marrow cells, and recipient antigen-presenting cells. This tolerance is independent of regulatory T cells and culminates in the deletion of directly alloreactive CD4 T cells.

Indexed as

AnimalsAntibodies, MonoclonalAntigens, CDB7-1 AntigenB7-2 AntigenBone Marrow TransplantationCD40 LigandCD4-Positive T-LymphocytesCD8 AntigensCTLA-4 AntigenGraft RejectionImmune ToleranceIsoantigensMiceMice, Inbred C57BLMice, KnockoutAntibodies, MonoclonalAntigens, CDB7-1 AntigenB7-2 AntigenCD40 LigandCd86 protein, mouseCD8 AntigensCTLA-4 AntigenCtla4 protein, mouseIsoantigens

Identifiers

PMID19179471
PMCPMC2668856
OpenAlexW1980495613

What OpenQuestion holds

Textmetadata
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.