Evidence map›Paper›PMID 20406683›Full record

ArticleCellular signalling2010

Ceramide synthases 2, 5, and 6 confer distinct roles in radiation-induced apoptosis in HeLa cells.

Judith Mesicek, Hyunmi Lee, Taya Feldman, Xuejun Jiang, Anastasia Skobeleva, Evgeny V Berdyshev, Adriana Haimovitz-Friedman, Zvi Fuks, Richard Kolesnick

Abstract read
In one paragraph

Article in Cellular signalling, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed
7.0field-weighted citation impact, top 2% 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

136 citing papers in PubMed, 219 citations in OpenAlex.

  1. Trial
  2. Trial
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  8. Article
  9. Sphingolipids in Emotional Well-Being.Journal of neurochemistry · 2026
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Sphingolipid metabolism and regulated cell death in malignant melanoma.Apoptosis : an international journal on programmed cell death · 2024
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Therapeutic Potential of Ceramide in Cancer Treatment.Journal of cancer research and oncobiology · 2024
    Article
  20. Review

76 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

9 authors at 2 institutions in 1 country.

Judith MesicekLaboratory of Signal Transduction, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10021, USA.
Hyunmi Lee
Taya Feldman
Xuejun Jiang
Anastasia Skobeleva
Evgeny V Berdyshev
Adriana Haimovitz-Friedman
Zvi Fuks
Richard Kolesnick
Memorial Sloan Kettering Cancer Center · USUniversity of Chicago · US

Funding

MODULATION OF CERAMIDE INDUCED APOPTOSIS IN VIVOR01CA085704 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI KOLESNICK, RICHARD N · 2000 to 2009
$3.7M
Ceramide synthase as a therapy target in prostate cancerR01CA105125 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI HAIMOVITZ-FRIEDMAN, ADRIANA · 2005 to 2009
$1.6M
Molecular Regulation of Apoptosome ActivityR01CA113890 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI JIANG, XUEJUN · 2006 to 2010
$1.4M
NCI NIH HHS CA105125NCI NIH HHS CA85704NCI NIH HHS R01 CA085704NCI NIH HHS R01 CA105125NCI NIH HHS R01 CA113890
6 · The paper itself

Abstract

The role of ceramide neo-genesis in cellular stress response signaling is gaining increasing attention with recent progress in elucidating the novel roles and biochemical properties of the ceramide synthase (CerS) enzymes. Selective tissue and subcellular distribution of the six mammalian CerS isoforms, combined with distinct fatty acyl chain length substrate preferences, implicate differential functions of specific ceramide species in cellular signaling. We report here that ionizing radiation (IR) induces de novo synthesis of ceramide to influence HeLa cell apoptosis by specifically activating CerS isoforms 2, 5, and 6 that generate opposing anti- and pro-apoptotic ceramides in mitochondrial membranes. Overexpression of CerS2 resulted in partial protection from IR-induced apoptosis whereas overexpression of CerS5 increased apoptosis in HeLa cells. Knockdown studies determined that CerS2 is responsible for all observable IR-induced C(24:0) CerS activity, and while CerS5 and CerS6 each confer approximately 50% of the C(16:0) CerS baseline synthetic activity, both are required for IR-induced activity. Additionally, co-immunoprecipitation studies suggest that CerS2, 5, and 6 might exist as heterocomplexes in HeLa cells, providing further insight into the regulation of CerS proteins. These data add to the growing body of evidence demonstrating interplay among the CerS proteins in a stress stimulus-, cell type- and subcellular compartment-specific manner.

Indexed as

ApoptosisAcyl Coenzyme ACeramidesHeLa CellsHumansIsoenzymesMembrane ProteinsMitochondriaPalmitoyl Coenzyme ARadiation, IonizingSphingosine N-AcyltransferaseTumor Suppressor ProteinsAcyl Coenzyme ACeramidesCERS2 protein, humanCERS5 protein, humanCERS6 protein, humanIsoenzymeslignoceroyl-coenzyme AMembrane ProteinsPalmitoyl Coenzyme ASphingosine N-AcyltransferaseTumor Suppressor Proteins

Identifiers

PMID20406683
PMCPMC4348005
OpenAlexW2073115843

What OpenQuestion holds

Textmetadata
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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.