Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1999-3-25
pubmed:abstractText
Transient expression in COS-7 cells of the recombinant human 5-hydroxytryptamine (5-HT) h5-HT4(c) receptor isoform led to constitutive activity of the receptor. The 5-HT4 receptor antagonist 2-(cis-3,5-dimethylpiperidino)ethyl 4-amino-5-chloro-2-methoxybenzoate (ML10375) at 1 microM completely abolished the 5-HT (1 microM)-mediated increase in adenylyl cyclase activity in COS-7 cells expressing the h5-HT4(c) receptor. Moreover, ML10375 also reduced basal cAMP levels in cells over-expressing the receptor, even in the absence of agonist. The inhibitory effect of ML10375 on basal adenylyl cyclase activity was not modified by pre-treatment of the cells with pertussis toxin, indicating that ML10375 acts through inactivation of spontaneously active h5-HT4(c) receptors rather than through a Gi/Go regulatory pathway. We conclude that ML10375 acts as an inverse agonist on the h5-HT4(c) receptor.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0007-1188
pubmed:author
pubmed:issnType
Print
pubmed:volume
125
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
595-7
pubmed:dateRevised
2008-11-20
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
The 5-HT4 receptor antagonist ML10375 inhibits the constitutive activity of human 5-HT4(c) receptor.
pubmed:affiliation
Institut de Signalisation et Innovation Thérapeutique (IFR-ISIT), Laboratoire de Cardiologie Cellulaire et Moléculaire, INSERM U-446, Université de Paris-Sud, Faculté de Pharmacie, Châtenay-Malabry, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't