Evidence map›Paper›PMID 19489126›Full record

ArticleImmunology2009

Interleukin 21 up-regulates perforin-mediated cytotoxic activity of human intra-epithelial lymphocytes.

Ellen C Ebert

Open access · greenAbstract read
In one paragraph

Article in Immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

14 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. T cells in vascular inflammatory diseases.Frontiers in immunology · 2014
    Review
  8. Article
  9. Review
  10. Cytolytic CD4(+) T cells in viral immunity.Expert review of vaccines · 2010
    Review
  11. Review
  12. Update on vaccine development for renal cell cancer.Open access journal of urology · 2010
    Review
  13. Article
  14. 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

1 author at 1 institution in 1 country.

Ellen C EbertUMDNJ-Robert Wood Johnson Medical School, New Brunswick, NJ, USA. ebertec@umdnj.edu
Rutgers, The State University of New Jersey · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human intra-epithelial lymphocytes (IELs) are predominantly T-cell receptor-alphabeta(+) (TCR-alphabeta(+)) CD8(+) CD45RO(+) memory T cells located between intestinal epithelial cells. They respond to a greater extent to stimulation with interleukin (IL)-15 than to CD3/TCR triggering, suggesting that they react to the cytokine milieu in their local environment rather than to cognate antigen. A newly described member of the gammac cytokine family, IL-21, has potent antitumor effects. As IELs resemble lymphocytes infiltrating neoplastic lesions, their response to IL-21 may be relevant in vivo. Here, IL-21 was shown to increase perforin-mediated cytotoxicity and serine esterase release by IELs. This IL-21-mediated up-regulation occurred without changes in IEL survival or cell division. Interestingly, the effects of IL-21 occurred without increased phosphorylation of signal transducer and activator of transcription (STAT)1, STAT3, STAT4, STAT5, extracellular signal-regulated kinase (ERK), or p38. IL-21 had no effect on Fas ligand (FL)- or tumour necrosis factor-alpha (TNF-alpha)-mediated cytotoxicity, but it down-regulated IL-15-stimulated expression of CD25 and CD94, indicating that it has both positive and negative actions. This functional profile is unique to human IELs, emphasizing that they are a distinct compartment of lymphocytes and that IL-21 may promote their role in tumour immunosurveillance.

Indexed as

Cell ProliferationCells, CulturedCell SurvivalCytoplasmic GranulesCytotoxicity, ImmunologicEpithelial CellsFas Ligand ProteinHumansImmunity, MucosalInterleukin-15Interleukin-21InterleukinsIntestinal MucosaJejunumPerforinPhosphorylationFas Ligand ProteinInterleukin-15Interleukin-21InterleukinsPerforinSTAT Transcription FactorsTumor Necrosis Factor-alpha

Identifiers

PMID19489126
PMCPMC2691786
OpenAlexW2075588168

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.