Evidence map›Paper›PMID 9931312›Full record

ArticleThe Biochemical journal1999

Activation of caspase-3-like proteases in apoptosis induced by sphingosine and other long-chain bases in Hep3B hepatoma cells.

W C Hung, H C Chang, L Y Chuang

Open access · bronzeAbstract read
In one paragraph

Article in The Biochemical journal, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

28 citing papers in PubMed, 82 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. "Dicing and Splicing" Sphingosine Kinase and Relevance to Cancer.International journal of molecular sciences · 2017
    Review
  9. Sphingolipids in mitochondria.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2017
    Review
  10. Article
  11. Targeting sphingosine-1-phosphate receptors in cancer.Anti-cancer agents in medicinal chemistry · 2011
    Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Sphingolipidomics: methods for the comprehensive analysis of sphingolipids.Journal of chromatography. B, Analytical technologies in the biomedical and life sciences · 2009
    Review
  17. Review
  18. Review
  19. 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

3 authors at 1 institution in 1 country.

W C HungSchool of Technology for Medical Sciences, Kaohsiung Medical College, Taiwan, Republic of China. hung1228@ms10.hinet.net
H C Chang
L Y Chuang
Kaohsiung Medical University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sphingosine and other long-chain bases (including sphinganine, dimethylsphingosine and stearylamine), but not octylamine (a short-chain analogue of sphinganine), induced apoptosis in Hep3B hepatoma cells. Because both D- and L-erythrosphingosine and stearylamine exert potent apoptotic effects on Hep3B cells, it is possible that these long-chain bases may activate apoptosis by inhibiting protein kinase C (PKC) activity. However, pretreatment with the PKC activator PMA could not rescue cells from apoptosis triggered by long-chain bases. Therefore the involvement of PKC in this apoptotic process requires further characterization. We also investigated whether these long-chain bases might be metabolized into ceramide in order to elicit their apoptotic action. We found that long-chain bases acted independently of ceramide in the induction of apoptosis, since addition of fumonisin B1, a fungal agent which effectively inhibits ceramide synthesis from sphingosine, did not protect against apoptosis. Additionally, we found that sphingosine-induced apoptosis was accompanied by activation of caspases. The functional role of caspases in this apoptotic process was examined by using specific caspase inhibitors. The general caspase inhibitor benzyloxycarbonyl-Val-Ala-Asp fluoromethyl ketone, which exhibits a broad specificity for caspase-family proteases, effectively blocked sphingosine-induced apoptosis. Furthermore, our results indicate that caspase-3-like proteases, but not caspase-1, are activated during apoptosis triggered by sphingosine. Enhancement of caspase-3-like activity and cleavage of poly(ADP-ribose) polymerase, an in vivo substrate for caspase-3, was clearly demonstrated in sphingosine-treated Hep3B cells. Considered together, these results suggest that caspase-3-like proteases participate in apoptotic cell death induced by sphingosine.

Indexed as

LysophospholipidsAmino Acid Chloromethyl KetonesApoptosisCarcinoma, HepatocellularCaspase 3Caspase InhibitorsCaspasesCatalysisEnzyme ActivationEnzyme InductionHumansPoly(ADP-ribose) PolymerasesSphingosineTetradecanoylphorbol AcetateTumor Cells, CulturedAmino Acid Chloromethyl Ketonesbenzyloxycarbonylvalyl-alanyl-aspartyl fluoromethyl ketoneCASP3 protein, humanCaspase 3Caspase InhibitorsCaspasesLysophospholipidsPoly(ADP-ribose) PolymerasesSphingosinesphingosine 1-phosphateTetradecanoylphorbol Acetate

Identifiers

PMID9931312
PMCPMC1220038
OpenAlexW1994648164

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.