Evidence map›Paper›PMID 16492801›Full record

ArticleThe Journal of experimental medicine2006

IL-7 promotes T cell proliferation through destabilization of p27Kip1.

Wen Qing Li, Qiong Jiang, Eiman Aleem, Philipp Kaldis, Annette R Khaled, Scott K Durum

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

53 citing papers in PubMed, 90 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Interleukin (IL)-7 Signaling in the Tumor Microenvironment.Advances in experimental medicine and biology · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
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  19. Adaptive immunity to murine skin commensals.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  20. 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

6 authors at 2 institutions in 1 country.

Wen Qing LiLaboratory of Molecular Immunoregulation, Center for Cancer Research, National Cancer Institute, National Institutes of Health (NIH), Frederick, MD 21702, USA.
Qiong Jiang
Eiman Aleem
Philipp Kaldis
Annette R Khaled
Scott K Durum
Center for Cancer Research · USNational Institutes of Health · US

Funding

Cytokines and T Cell DevelopmentZIABC009287 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI DURUM, SCOTT · 2009 to 2025
$15.5M
CYTOKINES AND T CELL DEVELOPMENTZ01BC009287 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI DURUM, SCOTT · 1996 to 2008
$1.9M
Intramural NIH HHS
6 · The paper itself

Abstract

Interleukin (IL)-7 is required for survival and homeostatic proliferation of T lymphocytes. The survival effect of IL-7 is primarily through regulation of Bcl-2 family members; however, the proliferative mechanism is unclear. It has not been determined whether the IL-7 receptor actually delivers a proliferative signal or whether, by promoting survival, proliferation results from signals other than the IL-7 receptor. We show that in an IL-7-dependent T cell line, cells protected from apoptosis nevertheless underwent cell cycle arrest after IL-7 withdrawal. This arrest was accompanied by up-regulation of the cyclin-dependent kinase inhibitor p27Kip1 through a posttranslational mechanism. Overexpression of p27Kip1 induced G1 arrest in the presence of IL-7, whereas knockdown of p27Kip1 by small interfering RNA promoted S phase entry after IL-7 withdrawal. CD4 or CD8 T cells transferred into IL-7-deficient hosts underwent G1 arrest, whereas 27Kip1-deficient T cells underwent proliferation. We observed that IL-7 withdrawal activated protein kinase C (PKC)theta and that inhibition of PKCtheta with a pharmacological inhibitor completely blocked the rise of p27Kip1 and rescued cells from G1 arrest. The conventional pathway to breakdown of p27Kip1 is mediated by S phase kinase-associated protein 2; however, our evidence suggests that PKCtheta acts via a distinct, unknown pathway inducing G1 arrest after IL-7 withdrawal from T cells. Hence, IL-7 maintains T cell proliferation through a novel pathway of p27Kip1 regulation.

Indexed as

Cell ProliferationAnimalsApoptosisCell SurvivalCyclin-Dependent Kinase Inhibitor p27Enzyme InhibitorsG1 PhaseInterleukin-7MiceMice, KnockoutProtein Kinase CRNA, Small InterferingSignal TransductionT-LymphocytesUp-RegulationCdkn1b protein, mouseCyclin-Dependent Kinase Inhibitor p27Enzyme InhibitorsInterleukin-7Protein Kinase CRNA, Small Interfering

Identifiers

PMID16492801
PMCPMC2118250
OpenAlexW2083195750

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.