Linked Life Data

1623116

Source:http://linkedlifedata.com/resource/pubmed/id/1623116

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-8-13
pubmed:abstractText
We investigated the effect of bacterial lipopolysaccharide (LPS) on phospholipid (PL) turnover in human monocytic leukaemia U937 cells. Cells were pre-labelled with [3H]choline, [14C]ethanolamine and [3H]inositol for 24 h. By monitoring the radiolabel association with cellular PL, the data indicated that LPS (10 micrograms/ml) drastically altered the catabolism of choline-containing PL; it induced their breakdown by 50% within 20 min. The reutilization of choline or its phosphates for PL synthesis was also suggested as a result of regaining radiolabel in the next 40 min. Choline-containing PL then underwent a second degradation after 60 min; 50% decline in radiolabel was detected at 120 min. In contrast, LPS did not induce the breakdown of phosphatidylethanolamine and phosphatidylinositol through phospholipase C/phospholipase D (PLC/PLD). No significant redistribution of the radiolabel in PL was detected in any cases during chasing. The data clearly indicate that LPS stimulates phosphatidylcholine breakdown, implying that the liberation of phosphatidic acid or diacylglycerol via PLC/PLD reaction may be relevant to the initiation of LPS-induced monocytic activation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0957-5235
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
19-23
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Bacterial lipopolysaccharide induces phosphatidylcholine breakdown in human leukaemia monocytic U937 cells.
pubmed:affiliation
Research Division, Miami Heart Institute, FL 33140-2999.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't