Evidence map›Paper›PMID 17530191›Full record

ArticleMolecular and cellular biochemistry2007

Attenuated Leishmanial sphingolipid induces apoptosis in A375 human melanoma cell via both caspase-dependent and -independent pathways.

Jagnyeswar Ratha, Kajal Nayan Majumdar, Koushik Dhara, Suman Kumar Singh, Krishna Das Saha, Ranjan Bhadra

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular and cellular biochemistry, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 35% 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

3 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
  2. Parasites revive hope for cancer therapy.European journal of medical research · 2024
    Review
  3. 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

6 authors at 4 institutions in 2 countries.

Jagnyeswar RathaCellular Biochemistry Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata 700032, India.
Kajal Nayan Majumdar
Koushik Dhara
Suman Kumar Singh
Krishna Das Saha
Ranjan Bhadra
Indian Institute of Chemical Biology · INIndian Association for the Cultivation of Science · INJadavpur University · INUniversity of Bradford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A fraction of attenuated Leishmanial lipid (ALL) rich in sphingolipids, previously shown to have apoptosis inducing activity in mouse melanoma (B16F10) and human melanoma (A375) cells, was resolved to isolate the bioactive sphingolipid. The mechanism of apoptosis induction by this bioactive attenuated Leishmanial sphingolipid (ALSL) was studied in A375 cells. Apoptosis induced by ALSL in A375 cells was found to be dose and time-dependent. Exposure of cells to ALSL resulted in a rapid increase in reactive oxygen species generation. Pretreatment of cells with the antioxidant N-acetyl-cystein reduced ROS generation and attenuated apoptosis induced by ALSL. Again, ALSL sensitization resulted in the activation of caspase-3 and -9 but not caspase-8. However, inhibitors of these caspases could not protect the cells completely from ALSL-induced apoptosis. N-acetyl-cystein pretreatment was again found to attenuate the activation of caspase-3 and -9. ALSL treatment also resulted in the alteration of mitochondrial membrane potential, and release of pro-apoptotic factors such as cytochrome c and apoptosis inducing factor (AIF) from mitochondria. Furthermore, c-Jun N-terminal kinase was activated that resulted in apoptosis of A375 cells, whereas p38 MAPK was activated to counteract the stress generated in cells in response to ALSL treatment. Taken together, our results indicate that ALSL-induced apoptosis of A375 cells is mediated by both mitochondrial caspase-dependent and -independent pathways and it involves ROS and JNK activation in the mitogen-activated protein kinase cascade.

Indexed as

AnimalsApoptosisCaspasesDose-Response Relationship, DrugHumansJNK Mitogen-Activated Protein KinasesLeishmaniaMelanomaMitochondriap38 Mitogen-Activated Protein KinasesReactive Oxygen SpeciesSignal TransductionSphingolipidsTumor Cells, CulturedCaspasesJNK Mitogen-Activated Protein Kinasesp38 Mitogen-Activated Protein KinasesReactive Oxygen SpeciesSphingolipids

Identifiers

PMID17530191
OpenAlexW2021013856

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.