Evidence map›Paper›PMID 20038597›Full record

ArticleThe Journal of experimental medicine2010

Thymic development beyond beta-selection requires phosphatidylinositol 3-kinase activation by CXCR4.

Michelle L Janas, Gabriele Varano, Kristjan Gudmundsson, Mamiko Noda, Takashi Nagasawa, Martin Turner

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

84 citing papers in PubMed, 143 citations in OpenAlex.

  1. Article
  2. WHIM syndrome in a child without the classic tetrad: a case confirmed by de novo CXCR4 mutation.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Metabolic regulation of T cell development.Frontiers in immunology · 2022
    Review
  14. Review
  15. Article
  16. Article
  17. PI3K in T Cell Adhesion and Trafficking.Frontiers in immunology · 2021
    Review
  18. Diverse Roles of Akt in T cells.Immunometabolism · 2021
    Article
  19. Pleiotropic Roles of VEGF in the Microenvironment of the Developing Thymus.Journal of immunology (Baltimore, Md. : 1950) · 2020
    Article
  20. Review

24 more citing papers are in PubMed but not listed here.

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

6 authors at 3 institutions in 3 countries.

Michelle L JanasLaboratory of Lymphocyte Signaling and Development, the Babraham Institute, Babraham, Cambridge, CB22 3AT England, UK. michelle.janas@bbsrc.ac.uk
Gabriele Varano
Kristjan Gudmundsson
Mamiko Noda
Takashi Nagasawa
Martin Turner
Babraham Institute · GBKyoto University · JPResearch Triangle Park Foundation · US

Funding

Biotechnology and Biological Sciences Research Council BB/F02066X/1Medical Research Council G0601618
6 · The paper itself

Abstract

T cell development requires phosphatidylinositol 3-kinase (PI3K) signaling with contributions from both the class IA, p110delta, and class IB, p110gamma catalytic subunits. However, the receptors on immature T cells by which each of these PI3Ks are activated have not been identified, nor has the mechanism behind their functional redundancy in the thymus. Here, we show that PI3K signaling from the preTCR requires p110delta, but not p110gamma. Mice deficient for the class IB regulatory subunit p101 demonstrated the requirement for p101 in T cell development, implicating G protein-coupled receptor signaling in beta-selection. We found evidence of a role for CXCR4 using small molecule antagonists in an in vitro model of beta-selection and demonstrated a requirement for CXCR4 during thymic development in CXCR4-deficient embryos. Finally, we demonstrate that CXCL12, the ligand for CXCR4, allows for Notch-dependent differentiation of DN3 thymocytes in the absence of supporting stromal cells. These findings establish a role for CXCR4-mediated PI3K signaling that, together with signals from Notch and the preTCR, contributes to continued T cell development beyond beta-selection.

Indexed as

AnimalsCatalytic DomainCell LineChemokine CXCL12Embryo, MammalianEnzyme ActivationMiceMice, KnockoutPhosphatidylinositol 3-KinasesReceptors, Antigen, T-CellReceptors, CXCR4Receptors, NotchSignal TransductionThymus GlandT-LymphocytesChemokine CXCL12Cxcl12 protein, mouseCXCR4 protein, mousePhosphatidylinositol 3-KinasesReceptors, Antigen, T-CellReceptors, CXCR4Receptors, Notch

Identifiers

PMID20038597
PMCPMC2812547
OpenAlexW2143900459

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.