Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 6
pubmed:dateCreated
2001-11-15
pubmed:abstractText
Sphingolipids and their metabolites are implicated in signal transduction, but the mechanisms are still poorly understood. In particular, the presumed function of ceramide as a second messenger remains controversial. Here, we emphasize the importance of both ceramide and sphingomyelin for membrane structure. The effects of sphingolipid turnover in the induction and effector phases of apoptosis are explained by their impact on membrane microdomains that are relevant for cell signalling or changes in morphology. The topology of sphingolipid metabolism is important because of their limited transbilayer and inter-membrane movement. For instance, glycosylceramide synthase converts de novo synthesized ceramide to glycosylceramide, but it is neither a general attenuator of ceramide accumulation at the plasma membrane, nor of the apoptotic process. Synthetic alkyl-lysophospholipids modulate membrane-lipid composition and, therefore, apoptosis sensitivity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0300-5127
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
819-24
pubmed:dateRevised
2005-11-16
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Sphingolipids related to apoptosis from the point of view of membrane structure and topology.
pubmed:affiliation
Division of Cellular Biochemistry, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands. wblit@nki.nl
pubmed:publicationType
Journal Article, Review