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alphaSynuclein and Mitochondrial Dysfunction: A Pathogenic Partnership in Parkinson's Disease?


Parkinson's Disease (PD) is a complex, chronic, progressive, and debilitating neurodegenerative disorder. Neither a cure nor effective long-term therapy exist and the lack of knowledge of the molecular mechanisms responsible for PD development is a major impediment to therapeutic advances. The protein alphaSynuclein is a central component in PD pathogenesis yet its cellular targets and mechanism of toxicity remains unknown. Mitochondrial dysfunction is also a common theme in PD patients and this review explores the strong possibility that alphaSynuclein and mitochondrial dysfunction have an inter-relationship responsible for underlying the disease pathology. Amplifying cycles of mitochondrial dysfunction and alphaSynuclein toxicity can be envisaged, with either being the disease-initiating factor yet acting together during disease progression. Multiple potential mechanisms exist in which mitochondrial dysfunction and alphaSynuclein could interact to exacerbate their neurodegenerative properties. Candidates discussed within this review include autophagy, mitophagy, mitochondrial dynamics/fusion/fission, oxidative stress and reactive oxygen species, endoplasmic reticulum stress, calcium, nitrosative stress and alphaSynuclein Oligomerization.

Type Journal
ISBN 2042-0080 (Electronic) 2042-0080 (Linking)
Authors Protter, D.; Lang, C.; Cooper, A. A.;
Responsible Garvan Author A/Prof Antony Cooper
Publisher Name Parkinson's Disease
Published Date 2012-01-01
Published Volume 2012
Published Pages 829207
Status Published in-print
DOI 10.1155/2012/829207
URL link to publisher's version
OpenAccess link to author's accepted manuscript version