rdf:type |
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lifeskim:mentions |
|
pubmed:issue |
2
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pubmed:dateCreated |
1999-11-8
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pubmed:abstractText |
Ceramide is involved as a mediator of apoptosis induced by a variety of signaling molecules or stressful events. Ceramide-derived sphingosine 1-phosphate behaves as an antiapoptotic agent. The ganglioside GM1 is known to protect neuronal cell lines from apoptosis induced by serum/growth factor withdrawal and its effect is mediated in part by the direct activation of the trkA NGF receptor [G. Ferrari et al. (1995) J. Biol. Chem. 270, 3074-3080]. We show that GM1, similarly to sphingosine 1-phosphate, protects rat heart fibroblasts from apoptosis induced by the protein kinase C inhibitor staurosporine and by C2-ceramide. Furthermore, we show that GM1 induces the synthesis of sphingosine 1-phosphate and that this effect is partially prevented by the sphingosine kinase inhibitor N,N-dimethylsphingosine. We conclude that the antiapoptotic action of GM1 is largely to be ascribed to an increased sphingosine kinase activity.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0003-9861
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pubmed:author |
|
pubmed:copyrightInfo |
Copyright 1999 Academic Press.
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pubmed:issnType |
Print
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pubmed:day |
15
|
pubmed:volume |
370
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
156-62
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:10510273-Animals,
pubmed-meshheading:10510273-Apoptosis,
pubmed-meshheading:10510273-Cells, Cultured,
pubmed-meshheading:10510273-Enzyme Activation,
pubmed-meshheading:10510273-Enzyme Inhibitors,
pubmed-meshheading:10510273-Fibroblasts,
pubmed-meshheading:10510273-G(M1) Ganglioside,
pubmed-meshheading:10510273-Heart,
pubmed-meshheading:10510273-Lysophospholipids,
pubmed-meshheading:10510273-Myocardium,
pubmed-meshheading:10510273-Phosphotransferases (Alcohol Group Acceptor),
pubmed-meshheading:10510273-Rats,
pubmed-meshheading:10510273-Second Messenger Systems,
pubmed-meshheading:10510273-Sphingosine
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pubmed:year |
1999
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pubmed:articleTitle |
Ganglioside GM1 protection from apoptosis of rat heart fibroblasts.
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pubmed:affiliation |
Department of Biological Chemistry, C.N.R. Centro di Studio delle Biomembrane, University of Padova, Padova, Italy. cavallin@civ.bio.unipd.it
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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