Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1989-12-21
pubmed:abstractText
In mouse cerebral cortical slices, noradrenaline (NA) potentiates cyclic AMP (cAMP) accumulation elicited by vasoactive intestinal peptide (VIP) through alpha 1-adrenergic receptors. This synergism is inhibited by indomethacin, and the prostaglandins E2 and F2 alpha mimic the effect of NA. In the present study, we observed that the synergism between VIP and NA is not inhibited by the protein kinase C inhibitor 1-(5-isoquinolinylsulfonyl)-2-methylpiperazine (H-7) or the diacylglycerol-lipase inhibitor RHC 80267, thus further stressing the role of phospholipase A2 activation. Various neuroactive agents that potentiate the stimulatory effect of VIP on cAMP formation were also examined. As with NA, the potentiation by histamine and adenosine is inhibited by indomethacin. In contrast to NA, histamine, and adenosine, the synergistic interaction between phorbol esters and VIP on cAMP formation is abolished by H-7 but not by indomethacin. The potentiation by baclofen, a gamma-aminobutyric acidB receptor agonist, is partially inhibited by the 5-lipoxygenase inhibitor nafazatrom. The synergism between ouabain and VIP is reduced by H-7 but not by indomethacin and nafazatrom. These data indicate that the stimulation of cAMP formation elicited by VIP is under the modulation of various neuroactive agents that trigger diverse intracellular mechanisms to potentiate the effect of the peptide.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Adenosine, http://linkedlifedata.com/resource/pubmed/chemical/Arachidonic Acids, http://linkedlifedata.com/resource/pubmed/chemical/Baclofen, http://linkedlifedata.com/resource/pubmed/chemical/Caffeic Acids, http://linkedlifedata.com/resource/pubmed/chemical/Cyclic AMP, http://linkedlifedata.com/resource/pubmed/chemical/Histamine, http://linkedlifedata.com/resource/pubmed/chemical/Indomethacin, http://linkedlifedata.com/resource/pubmed/chemical/Norepinephrine, http://linkedlifedata.com/resource/pubmed/chemical/Ouabain, http://linkedlifedata.com/resource/pubmed/chemical/Phorbol 12,13-Dibutyrate, http://linkedlifedata.com/resource/pubmed/chemical/Prostaglandins, http://linkedlifedata.com/resource/pubmed/chemical/Protein Kinase C, http://linkedlifedata.com/resource/pubmed/chemical/Vasoactive Intestinal Peptide, http://linkedlifedata.com/resource/pubmed/chemical/caffeic acid
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-3042
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1941-51
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Accumulation of cyclic AMP elicited by vasoactive intestinal peptide is potentiated by noradrenaline, histamine, adenosine, baclofen, phorbol esters, and ouabain in mouse cerebral cortical slices: studies on the role of arachidonic acid metabolites and protein kinase C.
pubmed:affiliation
Département de Pharmacologie, Centre Médical Universitaire, Genève, Switzerland.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't