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Neuroprotection by (-)-Deprenyl and Related Compounds

W Maruyama, M Naoi

Mech Ageing Dev. 1999 Nov;111(2-3):189-200.

PMID: 10656536

Abstract:

There is an increasing number of data by in vitro and in vivo experiments, indicating that (-)-deprenyl is neuroprotective to dopamine neurons, even though detailed mechanism remains to be clarified. In this paper neuroprotection by (-)-deprenyl and structurally related compounds was examined in concern with the suppression of apoptosis induced by a reactive oxygen species, peroxynitrite generated from SIN-1. The apoptotic DNA damage was quantitatively determined using dopaminergic SH-SYSY cells and by a single cell gel electrophoresis (comet) assay. DNA damage induced by peroxynitrite was proved to be apoptotic by prevention of the damage by cycloheximide or actinomycin-D. (-)-Deprenyl and other propargylamines protected the cells from apoptosis in a dose-dependent way. (-)-Deprenyl protected the cells even after it was washed out, suggesting that it may initiate the intracellular process to repress the apoptotic death program. The study on the structure-activity relationship of (-)-deprenyl analogues revealed that a N-propargyl residue with adequate size of hydrophobic structure is essentially required for the anti-apoptotic activity. These results suggest that (-)-deprenyl and related compounds may protect neurons from apoptosis and be applicable to delay the deterioration of neurons during advancing ageing and in neurodegenerative disorders.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP115586384 Selegiline Related Compound D Selegiline Related Compound D 115586-38-4 Price
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