TAK-147, an acetylcholinesterase inhibitor, increases choline acetyltransferase activity in cultured rat septal cholinergic neurons.
Neurosci Lett
; 260(1): 5-8, 1999 Jan 22.
Article
em En
| MEDLINE
| ID: mdl-10027686
ABSTRACT
TAK-147, a potent acetylcholinesterase (AChE) inhibitor, potentiated choline acetyltransferase (ChAT) activity in cultured rat septal cholinergic neurons in a concentration-dependent manner with an EC50 value of 4.47 nM. Donepezil, another potent AChE inhibitor, also increased ChAT activity although its potency was less than that of TAK-147. Other AChE inhibitors (rivastigmine, tacrine, physostigmine and neostigmine) showed no effect. The effects of TAK-147 were greater in the presence of NGF, suggesting a synergistic action of TAK-147 and NGF. TAK-147 and donepezil showed high affinity for sigma receptors, whereas tacrine and physostigmine did not. Haloperidol and ifenprodil, high-affinity sigma ligands, potently enhanced ChAT activity in the septal neurons. These results suggest that TAK-147 may have neurotrophic activity on central cholinergic neurons, not via AChE inhibition but possibly via an effect on tau receptors.
Buscar no Google
Bases de dados:
MEDLINE
Assunto principal:
Núcleos Septais
/
Benzazepinas
/
Colina O-Acetiltransferase
/
Inibidores da Colinesterase
Limite:
Animals
Idioma:
En
Revista:
Neurosci Lett
Ano de publicação:
1999
Tipo de documento:
Article
País de afiliação:
Japão