Linked Life Data

11787942

Source:http://linkedlifedata.com/resource/pubmed/id/11787942

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-1-11
pubmed:abstractText
Recent studies show that angiotensin II (AngII) can act from within the cell, possibly via intracellular receptors pharmacologically different from typical plasma membrane AngII receptors. The role of this intracellular AngII (AngIIi) is unclear. Besides direct effects of AngIIi on cellular processes one could hypothesise a possible role of AngIIi in modulation of cellular responses induced after heterologous receptor stimulation. We therefore examined if AngIIi influences [Ca+]i in A7r5 smooth muscle cells after serotonin (5HT) or UTP receptor stimulation. Application of AngIIi using liposomes, markedly inhibited 45Ca2+ influx after receptor stimulation with 5HT or UTP. This inhibition was reversible by intracellular administration of the AT1-antagonist losartan and not influenced by the AT2-antagonist PD123319. Similar results were obtained in single cell [Ca2+]i measurements, showing that AngIIi predominantly influences Ca2+ influx and not Ca2+ release via AT1-like receptors. It is concluded that AngIIi modulates signal transduction activated by heterologous receptor stimulation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0024-3205
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
70
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
171-80
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Intracellular angiotensin II inhibits heterologous receptor stimulated Ca2+ entry.
pubmed:affiliation
Groningen University Institute for Drug Exploration (GUIDE), Department of Clinical Pharmacology, University of Groningen, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't