Linked Life Data

2991013

Source:http://linkedlifedata.com/resource/pubmed/id/2991013

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1985-9-24
pubmed:abstractText
The phorbol ester TPA (12-O-tetradecanoyl phorbol-13-acetate) causes a dose-dependent inhibition of the glucagon-stimulated adenylate cyclase activity expressed in plasma membranes isolated from TPA-treated hepatocytes. However, no observable inhibitory effect of TPA on adenylate cyclase activity was observed in cells which had been exposed to glucagon for 5 min, prior to isolation, to desensitise adenylate cyclase. The degree of inhibition of adenylate cyclase elicited by both glucagon desensitisation and TPA treatment of hepatocytes was identical. Pre-treatment of hepatocytes with TPA was also found to prevent glucagon from blocking insulin's activation of the peripheral plasma membrane cyclic AMP phosphodiesterase in intact hepatocytes. TPA treatment also inhibited the ability of cholera toxin to activate the peripheral cyclic AMP phosphodiesterase in intact hepatocytes. It is suggested that in these particular instances TPA and glucagon elicit mutually exclusive processes rather than TPA mimicking glucagon desensitisation per se.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
187
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
196-200
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
The phorbol ester TPA prevents the expression of both glucagon desensitisation and the glucagon-mediated block of insulin stimulation of the peripheral plasma membrane cyclic AMP phosphodiesterase in rat hepatocytes.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't