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Int. J. Mol. Sci. 2012, 13(9), 10899-10910; doi:10.3390/ijms130910899

Neuroprotective Effects of Erucin against 6-Hydroxydopamine-Induced Oxidative Damage in a Dopaminergic-like Neuroblastoma Cell Line

Department of Pharmacology, Alma Mater Studiorum-University of Bologna, via Irnerio 48, 40126 Bologna, Italy
These authors contributed equally to this work.
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Received: 1 August 2012 / Revised: 20 August 2012 / Accepted: 22 August 2012 / Published: 30 August 2012
(This article belongs to the Special Issue Neuroprotective Strategies 2012)
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Abstract

Oxidative stress (OS) contributes to the cascade leading to the dysfunction or death of dopaminergic neurons during Parkinson’s disease (PD). A strategy to prevent the OS of dopaminergic neurons may be the use of phytochemicals as inducers of endogenous antioxidants and phase 2 enzymes. In this study, we demonstrated that treatment of the dopaminergic-like neuroblastoma SH-SY5Y cell line with isothiocyanate erucin (ER), a compound of cruciferous vegetables, resulted in significant increases of both total glutathione (GSH) levels and total antioxidant capacity at the cytosolic level. The increase of GSH levels was associated with an increase in the resistance of SH-SY5Y cells to neuronal death, in terms of apoptosis, induced by 6-hydroxydopamine (6-OHDA). The pretreatment of SH-SY5Y cells with ER was also shown to prevent the redox status impairment, in terms of intracellular ROS and O2•− formation, and loss of mitochondrial membrane potential, early events that are initiators of the apoptotic process, induced by 6-OHDA. Last, the antiapoptotic and antioxidant effects of ER were abolished by buthionine sulfoximine, supporting the main role of GSH in the neuroprotective effects recorded by ER. These results suggest that ER may prevent the oxidative damage induced by 6-OHDA. View Full-Text
Keywords: Parkinson’s disease; 6-hydroxydopamine; dopaminergic cells; oxidative stress; neuronal death; erucin; glutathione; antioxidant activity; neuroprotection Parkinson’s disease; 6-hydroxydopamine; dopaminergic cells; oxidative stress; neuronal death; erucin; glutathione; antioxidant activity; neuroprotection
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MDPI and ACS Style

Tarozzi, A.; Morroni, F.; Bolondi, C.; Sita, G.; Hrelia, P.; Djemil, A.; Cantelli-Forti, G. Neuroprotective Effects of Erucin against 6-Hydroxydopamine-Induced Oxidative Damage in a Dopaminergic-like Neuroblastoma Cell Line. Int. J. Mol. Sci. 2012, 13, 10899-10910.

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