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Toyoda, Y.* ; Erkut, C.* ; Pan-Montojo, F.* ; Boland, S.* ; Stewart, M.P.* ; Müller, D.J.* ; Wurst, W. ; Hyman, A.A.* ; Kurzchalia, T.V.*

Products of the Parkinson's disease-related glyoxalase DJ-1, D-lactate and glycolate, support mitochondrial membrane potential and neuronal survival.

Biol. Open 3, 777-784 (2014)

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	Open Access Gold

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Parkinson's disease is associated with mitochondrial decline in dopaminergic neurons of the substantia nigra. One of the genes linked with the onset of Parkinson's disease, DJ-1/PARK7, belongs to a novel glyoxalase family and influences mitochondrial activity. It has been assumed that glyoxalases fulfill this task by detoxifying aggressive aldehyde by-products of metabolism. Here we show that supplying either D-lactate or glycolate, products of DJ-1, rescues the requirement for the enzyme in maintenance of mitochondrial potential. We further show that glycolic acid and D-lactic acid can elevate lowered mitochondrial membrane potential caused by silencing PINK-1, another Parkinson's related gene, as well as by paraquat, an environmental toxin known to be linked with Parkinson's disease. We propose that DJ-1 and consequently its products are components of a novel pathway that stabilizes mitochondria during cellular stress. We go on to show that survival of cultured mesencephalic dopaminergic neurons, defective in Parkinson's disease, is enhanced by glycolate and D-lactate. Because glycolic and D-lactic acids occur naturally, they are therefore a potential therapeutic route for treatment or prevention of Parkinson's disease.

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Publication type Article: Journal article

Document type Scientific Article

Corresponding Author

Keywords D-lactate ; Glycolate ; Glyoxalase ; Mitochondrial Membrane Potential ; Parkinson's Disease; Oxidative Stress; Alpha-synuclein; Caenorhabditis-elegans; Escherichia-coli; Enteric Neurons; Paraquat; Pink1; Cells; Methylglyoxal; Drosophila-pink1

e-ISSN 2046-6390

Journal Biology Open

Quellenangaben Volume: 3, Issue: 8, Pages: 777-784

Publisher Company of Biologists

Publishing Place Cambridge

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Institute of Developmental Genetics (IDG)