Evidence map›Paper›PMID 18617900›Full record

ArticleCell death and differentiation2008

Spatial differences in active caspase-8 defines its role in T-cell activation versus cell death.

A Koenig, J Q Russell, W A Rodgers, R C Budd

Open access · bronzeAbstract read
In one paragraph

Article in Cell death and differentiation, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Exploring the elasticity and adhesion behavior of cardiac fibroblasts by atomic force microscopy indentation.Materials science & engineering. C, Materials for biological applications · 2014
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Lipid rafts in mast cell biology.Journal of lipids · 2011
    Article
  17. Review
  18. Cell death.The New England journal of medicine · 2009
    Review
  19. Cytoskeleton-membrane interactions in membrane raft structure.Cellular and molecular life sciences : CMLS · 2009
    Review
  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

4 authors at 2 institutions in 1 country.

A KoenigDepartment of Medicine, Immunobiology Program, The University of Vermont College of Medicine, Burlington, VT 05405, USA. akoenig@uvm.edu
J Q Russell
W A Rodgers
R C Budd
University of Vermont · USOklahoma Medical Research Foundation · US

Funding

VERMONT IMMUNOBIOLOIGY/ INFECTIOUS DISEASES CENTERP20RR021905 · NCRR · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI BUDD, RALPH C · 2006 to 2011
$14.5M
Synovial V delta 1 cells kill Th2 cellsP01AI045666 · NIAID · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI BUDD, RALPH C · 1999 to 2010
$12.5M
GAMMA DELTA T CELLS IN LYME ARTHRITISR01AR043520 · NIAMS · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI BUDD, RALPH C · 1994 to 2011
$3.8M
FAS REGULATES T CELL DEVELOPMENT/FUNCTION IN LPR MICER01AI036333 · NIAID · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI BUDD, RALPH C · 1996 to 2010
$3.7M
GEM Domains and T cell signalingR01GM070001 · NIGMS · OKLAHOMA MEDICAL RESEARCH FOUNDATION · PI RODGERS, WILLIAM A · 2003 to 2007
$1.3M
NCRR NIH HHS P20 RR021905NIAID NIH HHS AI36333NIAID NIH HHS AI45666NIAID NIH HHS P01 AI045666NIAID NIH HHS R01 AI036333NIAMS NIH HHS AR43520NIAMS NIH HHS R01 AR043520NIGMS NIH HHS R01 GM070001NIGMS NIH HHS R01GM070001
6 · The paper itself

Abstract

Caspase-8, a cysteine-protease, initiates apoptosis when activated by death receptors. Caspase-8 is also essential for initiating T lymphocyte proliferation following T-cell antigen receptor (TCR) signaling. Given these disparate functions of caspase-8, we sought to determine whether this represented only a difference in the magnitude of caspase-8 activation, or different intracellular locations of active caspase-8. We demonstrate by high-resolution multicolor confocal laser scanning microscopy an aggregation of active caspase-8 within membrane lipid rafts in T cells stimulated with anti-CD3. This suggests that following TCR stimulation active caspase-8 physically interacts with lipid raft proteins, possibly to form a signaling platform. In contrast, Fas stimulation of T cells resulted in a much more profound activation of caspase-8 that was exclusively cytosolic. These confocal microscopic findings were confirmed using discontinuous sucrose gradient ultracentrifugation to isolate lipid raft versus cytosolic components. This sequestration model of caspase-8 activation was further supported by the observation that a classic caspase-8 substrate, BID, was not cleaved in CD3-stimulated T cells, but was cleaved after Fas engagement. Our data support a model that the location of active caspase-8 may profoundly influence its functional capacity as a regulator of either cell cycling or cell death.

Indexed as

Caspase 8CD3 ComplexCell DeathDNA FragmentationEnzyme Activationfas ReceptorHumansJurkat CellsKineticsLymphocyte ActivationMembrane MicrodomainsProtein TransportReceptors, Antigen, T-CellT-LymphocytesCaspase 8CD3 ComplexFAS protein, humanfas ReceptorReceptors, Antigen, T-Cell

Identifiers

PMID18617900
PMCPMC2665918
OpenAlexW2076363547

What OpenQuestion holds

Textmetadata
LicenceTDM
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.