DL-3-n-Butylphthalide prevents oxidative damage and reduces mitochondrial dysfunction in an MPP+-induced cellular model of Parkinson's disease

The aim of the present study was to explore the neuroprotective effects and mechanisms of action of DL-3-n-butylphthalide (NBP) in a 1-methyl-4-phenylpyridiniumion (MPP+)-induced cellular model of Parkinson's disease (PD). NBP was extracted from seeds of Apium graveolens Linn. (Chinese celery). MPP+ treatment of PC12 cells caused reduced viability, formation of reactive oxygen, and disruption of mitochondrial membrane potential. Our results indicated that NBP reduced the cytotoxicity of MPP+ by suppressing the mitochondrial permeability transition, reducing oxidative stress, and increasing the cellular GSH content. NBP also reduced the accumulation of alpha-synuclein, the main component of Lewy bodies. Given that NBP is safe and currently used in clinical trials for stroke patients, NBP will likely be a promising chemical for the treatment of PD. (C) 2010 Elsevier Ireland Ltd. All rights reserved.