Synthesis and pharmacological evaluation of functionalized isoindolinones on GABA-activated chloride currents in rat cerebellum granule cells in culture.
Bioorg Med Chem Lett
; 26(21): 5284-5289, 2016 11 01.
Article
en En
| MEDLINE
| ID: mdl-27720293
ABSTRACT
A focused N-substituted 3-(2-piperazin-1-yl-2-oxoethyl)-2-(pyridin-2-yl)iso-indolin-1-ones small library was synthesized for modulation of GABA-A receptor function and compared to Zopiclone for the ability to increase GABA-activated chloride currents. All compounds were tested for their effects on GABA-activated chloride currents in rat cerebellar granule cells by use of the whole-cell patch clamp technique. Electrophysiological studies on cultured cerebellar granule cells revealed 3-[2-(4-methylpiperazin-1-yl)-2-oxoethyl]-2-(5-nitropyridin-2-yl)iso-indolin-1-one (Id) as a partial agonist displaying 34% increase of the 10µM GABA evoked peak chloride currents, antagonized by flumazenil. Moreover, a second group of compounds, with bulky functional groups at N-4 position of piperazine, have shown inverse agonist effects. The simple synthetic procedure and the possibility of modulating the efficacy of this class of ligands through additional structural modifications pave the way for further development of new molecules as a novel class of compounds able to interfere with benzodiazepine receptors.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Cerebelo
/
Canales de Cloruro
/
Gránulos Citoplasmáticos
/
Isoindoles
/
Ácido gamma-Aminobutírico
Límite:
Animals
Idioma:
En
Revista:
Bioorg Med Chem Lett
Asunto de la revista:
BIOQUIMICA
/
QUIMICA
Año:
2016
Tipo del documento:
Article
País de afiliación:
Italia