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Neurosci Lett. 2012 Jan 17;507(1):10-5. doi: 10.1016/j.neulet.2011.11.035. Epub 2011 Dec 1.

Differentially expressed gene profile in the 6-hydroxy-dopamine-induced cell culture model of Parkinson's disease.

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  • 1Department of Neurology, Philipps-University Marburg, Germany. noelker@staff.uni-marburg.de


Parkinson's disease (PD) is a chronic neurodegenerative disorder characterized by progressive loss of dopaminergic (DA) neurons of the substantia nigra pars compacta with unknown aetiology. 6-Hydroxydopamine (6-OHDA) treatment of neuronal cells is an established in vivo model for mimicking the effect of oxidative stress found in PD brains. We examined the effects of 6-OHDA treatment on human neuroblastoma cells (SH-SY5Y) and primary mesencephalic cultures. Using a reverse arbitrarily primed polymerase chain reaction (RAP-PCR) approach we generated reproducible genetic fingerprints of differential expression levels in cell cultures treated with 6-OHDA. Of the resulting sequences, 23 showed considerable homology to known human coding sequences. The results of the RAP-PCR were validated by reverse transcription PCR, real-time PCR and, for selected genes, by Western blot analysis and immunofluorescence. In four cases, [tomoregulin-1 (TMEFF-1), collapsin response mediator protein 1 (CRMP-1), neurexin-1, and phosphoribosylaminoimidazole synthetase (GART)], a down-regulation of mRNA and protein levels was detected. Further studies will be necessary on the physiological role of the identified proteins and their impact on pathways leading to neurodegeneration in PD.

Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

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