Evidence map›Paper›PMID 18477771›Full record

ArticleBlood2008

Molecular profiling of LGL leukemia reveals role of sphingolipid signaling in survival of cytotoxic lymphocytes.

Mithun Vinod Shah, Ranran Zhang, Rosalyn Irby, Ravi Kothapalli, Xin Liu, Ty Arrington, Bryan Frank, Norman H Lee, Thomas P Loughran

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

60 citing papers in PubMed, 108 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Pharmacological Effects of FTY720 and its Derivatives.Current topics in medicinal chemistry · 2024
    Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Large granular lymphocytic leukemia: a brief review.American journal of blood research · 2022
    Review
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Chronic neutropenia in LGL leukemia and rheumatoid arthritis.Hematology. American Society of Hematology. Education Program · 2017
    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

9 authors at 4 institutions in 1 country.

Mithun Vinod ShahPenn State Hershey Cancer Institute, Milton S. Hershey Medical College, Hershey, PA, USA.
Ranran Zhang
Rosalyn Irby
Ravi Kothapalli
Xin Liu
Ty Arrington
Bryan Frank
Norman H Lee
Thomas P Loughran
Penn State Milton S. Hershey Medical Center · USWashington University Medical Center · USGeorge Washington University · USShriners Hospitals for Children - Tampa · US

Funding

Survival Mechanisms in Leukemic NK CellsR01CA098472 · NCI · UNIVERSITY OF VIRGINIA · PI LOUGHRAN, THOMAS P. · 2003 to 2016
$4.0M
THERAPEUTIC RESPONSE IN LGL LEUKEMIAR01CA090633 · NCI · UNIVERSITY OF SOUTH FLORIDA · PI LOUGHRAN, THOMAS PATRICK · 2001 to 2005
$1.5M
NCI NIH HHS CA90633NCI NIH HHS CA94872NCI NIH HHS R01 CA090633NCI NIH HHS R01 CA098472
6 · The paper itself

Abstract

T-cell large granular lymphocyte (LGL) leukemia is characterized by clonal expansion of CD3(+)CD8(+) cells. Leukemic LGLs correspond to terminally differentiated effector-memory cytotoxic T lymphocytes (CTLs) that escape Fas-mediated activation-induced cell death (AICD) in vivo. The gene expression signature of peripheral blood mononuclear cells from 30 LGL leukemia patients showed profound dysregulation of expression of apoptotic genes and suggested uncoupling of activation and apoptotic pathways as a mechanism for failure of AICD in leukemic LGLs. Pathway-based microarray analysis indicated that balance of proapoptotic and antiapoptotic sphingolipid-mediated signaling was deregulated in leukemic LGLs. We further investigated sphingolipid pathways and found that acid ceramidase was constitutively overexpressed in leukemic LGLs and that its inhibition induced apoptosis of leukemic LGLs. We also showed that S1P(5) is the predominant S1P receptor in leukemic LGLs, whereas S1P(1) is down-regulated. FTY720, a functional antagonist of S1P-mediated signaling, induced apoptosis in leukemic LGLs and also sensitized leukemic LGLs to Fas-mediated death. Collectively, these results show a role for sphingolipid-mediated signaling as a mechanism for long-term survival of CTLs. Therapeutic targeting of this pathway, such as use of FTY720, may have efficacy in LGL leukemia.

Indexed as

Gene Expression Regulation, NeoplasticSignal TransductionApoptosisCase-Control StudiesCell SurvivalGalactosylgalactosylglucosylceramidaseGene Expression ProfilingHumansLeukemia, Large Granular LymphocyticReceptors, LysosphingolipidSphingolipidsT-Lymphocytes, CytotoxicGalactosylgalactosylglucosylceramidaseReceptors, LysosphingolipidSphingolipids

Identifiers

PMID18477771
PMCPMC2481553
OpenAlexW2009977888

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.