Article Publish Status: FREE
Abstract Title:

Antioxidants inhibit neuronal toxicity in Parkinson's disease-linked LRRK2.

Abstract Source:

Ann Clin Transl Neurol. 2016 Apr ;3(4):288-94. Epub 2016 Mar 2. PMID: 27081659

Abstract Author(s):

Dario C Angeles, Patrick Ho, Brian W Dymock, Kah-Leong Lim, Zhi-Dong Zhou, Eng-King Tan

Article Affiliation:

Dario C Angeles


Mutations in leucine-rich repeat kinase-2 are the most common cause of familial Parkinson's disease. The prevalent G2019S mutation increase oxidative, kinase and toxic activity and inhibit endogenous peroxidases. We initially screened a library of 84 antioxidants and identified seven phenolic compounds that inhibited kinase activity on leucine-rich repeat kinase-2 substrates. The representative antioxidants (piceatannol, thymoquinone, and esculetin) with strong kinase inhibitor activity, reduced loss in dopaminergic neurons, oxidative dysfunction, and locomotor defects in G2019S-expressing neuronal and Drosophila models compared to weak inhibitors. We provide proof of principle that natural antioxidants with dual antioxidant and kinase inhibitor properties could be useful for leucine-rich repeat kinase-2-linked Parkinson's disease.

Study Type : Animal Study, In Vitro Study

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