Rasagiline, a monoamine oxidase-B inhibitor, protects NGF-differentiated PC12 cells against oxygen-glucose deprivation.
J Neurosci Res
; 58(3): 456-63, 1999 Nov 01.
Article
in En
| MEDLINE
| ID: mdl-10518120
ABSTRACT
In our in vitro model, rasagiline a selective irreversible monoamine oxidase-B (MAO-B) inhibitor, protected nerve growth factor (NGF)-differentiated PC12 cells from cell death under oxygen and glucose deprivation (OGD). The severity of the OGD insult, as expressed by cell death, was time-dependent. Exposure of the cells to OGD for 3 hr followed by 18 hr of reoxygenation caused about 30-40% cell death. Under these conditions, the neuroprotective effect of rasagiline was dose-dependent rasagiline reducing OGD-induced cell death by 68% and 80% at 100 nM and 1 microM, respectively. The neuroprotective effect of rasagiline was also observed when added after the OGD insult (55% reduction in cell death). Under rasagiline treatment, there was a lesser decrease in ATP content in cultures exposed to OGD compared with that in untreated cultures. OGD followed by reoxygenation resulted in a several fold increase in PGE(2) release into the extracellular medium. Rasagiline (100 nM-1 microM) markedly inhibited OGD-induced PGE(2) release. Clorgyline, a monoamine oxidase-A (MAO-A) inhibitor, did not protect NGF-differentiated PC12 cells against OGD-induced cell death. As NGF-differentiated PC12 cells contain exclusively MAO type A, these data suggest that the neuroprotective effect of rasagiline under OGD conditions is independent of MAO inhibition.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cell Hypoxia
/
Cell Differentiation
/
Cell Death
/
Indans
/
Monoamine Oxidase
/
Monoamine Oxidase Inhibitors
/
Nerve Growth Factors
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
J Neurosci Res
Year:
1999
Document type:
Article
Affiliation country: