Comparison of high and low affinity serotonin 1A receptors by PET in vivo in nonhuman primates.
J Pharmacol Sci
; 120(3): 254-7, 2012.
Article
em En
| MEDLINE
| ID: mdl-23076129
ABSTRACT
Serotonin (5-HT) 1A receptors exist in high and low affinity states. Agonist ligands bind preferentially to the high affinity state receptors, providing a more functionally relevant measure than antagonist binding. We now report comparison of 5-HT(1A) binding in vivo using both [¹¹C]CUMI-101 (agonist) and [¹¹C]WAY100635 (antagonist) in nonhuman primates. PET studies show that both tracers bind to known 5-HT(1A) receptor (5-HT(1A)R)-rich regions of baboon brain. The binding (BP(F)) of [¹¹C]CUMI-101 was lower on an average of 55% across the regions of interest (ROIs) compared to [¹¹C]WAY100635. This ratio is consistent with the in vitro binding data of agonist and antagonist 5-HT(1A)R ligands previously reported.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Encéfalo
/
Receptor 5-HT1A de Serotonina
/
Agonistas do Receptor 5-HT1 de Serotonina
/
Antagonistas do Receptor 5-HT1 de Serotonina
/
Proteínas do Tecido Nervoso
Limite:
Animals
/
Humans
Idioma:
En
Revista:
J Pharmacol Sci
Assunto da revista:
FARMACOLOGIA
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos