Abstract Title:

Curcumin attenuates 6-hydroxydopamine-induced cytotoxicity by anti-oxidation and nuclear factor-kappa B modulation in MES23.5 cells.

Abstract Source:

Biochem Pharmacol. 2009 Jul 15;78(2):178-83. Epub 2009 Apr 8. PMID: 19464433

Abstract Author(s):

Jun Wang, Xi-Xun Du, Hong Jiang, Jun-Xia Xie

Article Affiliation:

National Key Disciplines: Physiology (in incubation), Department of Physiology, Medical College of Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, China.


Oxidative stress has been implicated in the degeneration of dopaminergic neurons in the substantia nigra of Parkinson's disease patients, and several anti-oxidants have been shown to be effective on the treatment of Parkinson's disease. Curcumin has been previously reported to possess radical scavenger, iron chelating, anti-inflammatory properties in different tissues. The aim of present study is to explore the cytoprotection of curcumin against 6-hydroxydopamine (6-OHDA)-induced neuronal death, as well as the underlying mechanisms in MES23.5 cells. Our results showed that 6-OHDA significantly reduced the cell viability of MES23.5 cells. Curcumin protected MES23.5 cells against 6-OHDA neurotoxicity by partially restoring the mitochondrial membrane potential, increasing the level of Cu-Zn superoxide dismutase and suppressing an increase in intracellular reactive oxygen species. Furthermore, curcumin pretreatment significantly inhibited 6-OHDA induced nuclear factor-kappaB translocation. These results suggest that the neuroprotective effects of curcumin are attributed to the antioxidative properties and the modulation of nuclear factor-kappaB translocation.

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