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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-4-8
pubmed:abstractText
Angiotensin II stimulated a biphasic 1,2-diacylglycerol formation in [3H]arachidonic acid-labelled mesangial cells. In contrast, in cells labelled with [3H]myristic acid, a tracer that preferentially marks phosphatidylcholine, angiotensin II induced a delayed monophasic production of 1,2-diacylglycerol. This delayed peak of 1,2-diacylglycerol generation was associated with a concomitant increase in choline formation, suggesting that stimulation of mesangial cells with angiotensin II causes a phospholipase D-mediated phosphatidylcholine hydrolysis. This conclusion is supported by the observation that angiotensin II stimulated the accumulation of phosphatidylethanol, when ethanol was added to mesangial cells. The production of choline and phosphatidylethanol stimulated by angiotensin II was completely blocked by the angiotensin II AT1 receptor-selective antagonist DuP 753 with an IC50 value of 8 nM, but not by the angiotensin II AT2 receptor selective ligand CGP 42112A. Furthermore, angiotensin(1-7) and angiotensin(1-6) had only weak effects on choline generation. These data clearly indicate that angiotensin II AT1 receptors trigger phospholipase D-mediated phosphatidylcholine hydrolysis in rat mesangial cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
225
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
57-62
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Angiotensin II stimulation of phospholipase D in rat renal mesangial cells is mediated by the AT1 receptor subtype.
pubmed:affiliation
Research Department, Ciba-Geigy Ltd., Basel, Switzerland.
pubmed:publicationType
Journal Article