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Insights on the interaction of alpha-synuclein and metals in the pathophysiology of Parkinson's disease

期刊

METALLOMICS
卷 7, 期 3, 页码 395-404

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4mt00339j

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资金

  1. Cluster of Excellence and DFG-Research Center Nanoscale Microscopy and Molecular Physiology of the Brain
  2. Else Kroner-Fresenius-Stiftung
  3. Parkinson's UK [G-0909] Funding Source: researchfish

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Parkinson's disease (PD) is the most frequent neurodegenerative movement disorder with severe consequences for patients and caregivers. In the last twenty years of research, alpha-synuclein (alpha Syn) emerged as a main regulator of PD pathology, both in genetic and sporadic cases. Most importantly, oligomeric and aggregated species of alpha Syn appear to be pathogenic. In addition, transition metals have been implicated in the disease pathogenesis of PD already for decades. The interaction of metals with alpha Syn has been shown to trigger the aggregation of this protein. Furthermore, metals can exert cellular toxicity due to their red-ox potential, which leads to the formation of reactive oxygen species, exacerbating the noxious effects of alpha Syn. Here we give a brief overview on alpha Syn pathology and the role of metals in the brain and then address in more detail the interaction of alpha Syn with three disease-relevant transition metals, iron (Fe), copper (Cu) and manganese (Mn). We also discuss possible therapeutic approaches for PD, which are based on these interactions, e.g. chelation therapy and anti-oxidative treatments. Not all mechanisms of alpha-synucleinmediated toxicity and roles of metals are sufficiently understood. We discuss several aspects, which deserve further investigation in order to shed light on the etiopathology of the disease and enable the development of more specific, innovative drugs for the treatment of PD and other synucleinopathies.

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