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Epigallocatechin-3-Gallate Protects and Prevents Paraquat-Induced Oxidative Stress and Neurodegeneration in Knockdown dj-1-β Drosophila melanogaster

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Abstract

Epigallocatechin-3-gallate (EGCG) is a polyhydroxyphenol constituent of green tea (e.g., Camellia sinensis) with known antioxidant properties. Due to these properties, others have proposed it as a potential therapeutic agent for the treatment of Parkinson’s disease (PD). Previously, we demonstrated that EGCG prolonged the lifespan and locomotor activity in wild-type Canton-S flies exposed to the neurotoxicant paraquat (PQ), suggesting neuroprotective properties. Both gene mutations and environmental neurotoxicants (e.g., PQ) are factors involved in the development of PD. Thus, the first aim of this study was to create a suitable animal model of PD, which encompasses both of these factors. To create the model, we knocked down dj-1-β function specifically in the dopaminergic neurons to generate TH > dj-1-β-RNAi/+ Drosophila melanogaster flies. Next, we induced neurotoxicity in the transgenic flies with PQ. The second aim of this study was to validate the model by comparing the effects of vehicle, EGCG, and chemicals with known antioxidant and neuroprotective properties in vivo (e.g., propyl gallate and minocycline) on life-span, locomotor activity, lipid peroxidation, and neurodegeneration. The EGCG treatment provided protection and prevention from the PQ-induced reduction in the life-span and locomotor activity and from the PQ-induced increase in lipid peroxidation and neurodegeneration. These effects were augmented in the EGCG-treated flies when compared to the flies treated with either PG or MC. Altogether, these results suggest that the transgenic TH > dj-1-β-RNAi/+ flies treated with PQ serve as a suitable PD model for screening of potential therapeutic agents.

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Change history

  • 01 June 2018

    The original version of this article contained mistakes, and the authors would like to publish this erratum. The “Acknowledgement” section was not included in the aforementioned manuscript.

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  1. Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, University of Antioquia (UdeA), Calle 70 No. 52-21, and Calle 62 # 52-59, Building 1, Room 412; SIU, Medellin, Colombia

    Daniel A. Martinez-Perez, Marlene Jimenez-Del-Rio & Carlos Velez-Pardo

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  1. Daniel A. Martinez-Perez
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  2. Marlene Jimenez-Del-Rio
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Correspondence to Marlene Jimenez-Del-Rio or Carlos Velez-Pardo.

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Martinez-Perez, D.A., Jimenez-Del-Rio, M. & Velez-Pardo, C. Epigallocatechin-3-Gallate Protects and Prevents Paraquat-Induced Oxidative Stress and Neurodegeneration in Knockdown dj-1-β Drosophila melanogaster. Neurotox Res 34, 401–416 (2018). https://doi.org/10.1007/s12640-018-9899-x

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