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Parkinson-like syndrome induced by continuous MPTP infusion: Convergent roles of the ubiquitin-proteasome system and α-synuclein

Open access
Fornai, Francesco, Schlüter, Oliver M., Lenzi, Paola, Gesi, Marco, Ruffoli, Riccardo, Ferrucci, Michela, Lazzeri, Gloria, Busceti, Carla L., Pontarelli, Fabrizio, Battaglia, Giuseppe, Pellegrini, Antonio, Nicoletti, Ferdinando, Ruggieri, Stefano, Paparelli, Antonio, Südhof, Thomas C.·2005·Proceedings of the National Academy of Sciences

Abstract

In animals, sporadic injections of the mitochondrial toxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) selectively damage dopaminergic neurons but do not fully reproduce the features of human Parkinson's disease. We have now developed a mouse Parkinson's disease model that is based on continuous MPTP administration with an osmotic minipump and mimics many features of the human disease. Although both sporadic and continuous MPTP administration led to severe striatal dopamine depletion and nigral cell loss, we find that only continuous administration of MPTP produced progressive behavioral changes and triggered formation of nigral inclusions immunoreactive for ubiquitin and α-synuclein. Moreover, only continuous MPTP infusions caused long-lasting activation of glucose uptake and inhibition of the ubiquitin-proteasome system. In mice lacking α-synuclein, continuous MPTP delivery still induced metabolic activation, but induction of behavioral symptoms and neuronal cell death were almost completely alleviated. Furthermore, the inhibition of the ubiquitinproteasome system and the production of inclusion bodies were reduced. These data suggest that continuous low-level exposure of mice to MPTP causes a Parkinson-like syndrome in an α-synuclein-dependent manner.

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Metadata

Authors
Fornai, F., Schlüter, O. M., Lenzi, P., Gesi, M., Ruffoli, R., Ferrucci, M., Lazzeri, G., Busceti, C. L., Pontarelli, F., Battaglia, G., Pellegrini, A., Nicoletti, F., Ruggieri, S., Paparelli, A., & Südhof, T. C.
Venue
Proceedings of the National Academy of Sciences
Published
2005-02-16
Volume
102
Issue
9
Pages
3413-3418
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2128672762
Cited by
526
References
38
FWCI
29.24
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Parkinson-like syndrome induced by continuous MPTP infusion: Convergent roles of the ubiquitin-proteasome system and α-synuclein. https://app.cochat.ai/papers/10.1073/pnas.0409713102
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Fornai, F., Schlüter, O. M., Lenzi, P., Gesi, M., Ruffoli, R., Ferrucci, M., Lazzeri, G., Busceti, C. L., Pontarelli, F., Battaglia, G., Pellegrini, A., Nicoletti, F., Ruggieri, S., Paparelli, A., & Südhof, T. C. (2005). Parkinson-like syndrome induced by continuous MPTP infusion: Convergent roles of the ubiquitin-proteasome system and α-synuclein. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0409713102

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.