Evidence map›Paper›PMID 12486096›Full record

ArticleThe Journal of experimental medicine2002

Acetylation suppresses the proapoptotic activity of GD3 ganglioside.

Florence Malisan, Luigi Franchi, Barbara Tomassini, Natascia Ventura, Ivano Condò, Maria Rita Rippo, Alessandra Rufini, Laura Liberati, Claudia Nachtigall, Bernhard Kniep and 1 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

53 citing papers in PubMed, 113 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 2 countries.

Florence MalisanLaboratory of Immunology and Signal Transduction, Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, 00133 Rome, Italy.
Luigi Franchi
Barbara Tomassini
Natascia Ventura
Ivano Condò
Maria Rita Rippo
Alessandra Rufini
Laura Liberati
Claudia Nachtigall
Bernhard Kniep
Roberto Testi
University of Rome Tor Vergata · ITTU Dresden · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

GD3 synthase is rapidly activated in different cell types after specific apoptotic stimuli. De novo synthesized GD3 accumulates and contributes to the apoptotic program by relocating to mitochondrial membranes and inducing the release of apoptogenic factors. We found that sialic acid acetylation suppresses the proapoptotic activity of GD3. In fact, unlike GD3, 9-O-acetyl-GD3 is completely ineffective in inducing cytochrome c release and caspase-9 activation on isolated mitochondria and fails to induce the collapse of mitochondrial transmembrane potential and cellular apoptosis. Moreover, cells which are resistant to the overexpression of the GD3 synthase, actively convert de novo synthesized GD3 to 9-O-acetyl-GD3. The coexpression of GD3 synthase with a viral 9-O-acetyl esterase, which prevents 9-O-acetyl-GD3 accumulation, reconstitutes GD3 responsiveness and apoptosis. Finally, the expression of the 9-O-acetyl esterase is sufficient to induce apoptosis of glioblastomas which express high levels of 9-O-acetyl-GD3. Thus, sialic acid acetylation critically controls the proapoptotic activity of GD3.

Indexed as

ApoptosisAcetylationAcetylesteraseCaspasesCell LineEnzyme ActivationFlow CytometryGangliosidesGlycosphingolipidsGolgi ApparatusHumansMitochondriaN-Acetylneuraminic AcidReceptors, Cell SurfaceAcetylesteraseCaspasesganglioside, GD3GangliosidesGlycosphingolipidsN-Acetylneuraminic AcidReceptors, Cell Surface

Identifiers

PMID12486096
PMCPMC2196066
OpenAlexW2100644351

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.