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alpha -Synucleinopathy and selective dopaminergic neuron loss in a rat lentiviral-based model of Parkinson's disease.
Proc Natl Acad Sci U S A. 2002 Aug 06; 99(16):10813-8.PN

Abstract

Parkinson's disease (PD) is characterized by the progressive loss of substantia nigra dopaminergic neurons and the presence of cytoplasmic inclusions named Lewy bodies. Two missense mutations of the alpha-synuclein (alpha-syn; A30P and A53T) have been described in several families with an autosomal dominant form of PD. alpha-Syn also constitutes one of the main components of Lewy bodies in sporadic cases of PD. To develop an animal model of PD, lentiviral vectors expressing different human or rat forms of alpha-syn were injected into the substantia nigra of rats. In contrast to transgenic mice models, a selective loss of nigral dopaminergic neurons associated with a dopaminergic denervation of the striatum was observed in animals expressing either wild-type or mutant forms of human alpha-syn. This neuronal degeneration correlates with the appearance of abundant alpha-syn-positive inclusions and extensive neuritic pathology detected with both alpha-syn and silver staining. Lentiviral-mediated expression of wild-type or mutated forms of human alpha-syn recapitulates the essential neuropathological features of PD. Rat alpha-syn similarly leads to protein aggregation but without cell loss, suggesting that inclusions are not the primary cause of cell degeneration in PD. Viral-mediated genetic models may contribute to elucidate the mechanism of alpha-syn-induced cell death and allow the screening of candidate therapeutic molecules.

Authors+Show Affiliations

Institute of Neurosciences, Swiss Federal Institute of Technology Lausanne, EPFL, 1015 Lausanne, Switzerland.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12122208

Citation

Lo Bianco, C, et al. "Alpha -Synucleinopathy and Selective Dopaminergic Neuron Loss in a Rat Lentiviral-based Model of Parkinson's Disease." Proceedings of the National Academy of Sciences of the United States of America, vol. 99, no. 16, 2002, pp. 10813-8.
Lo Bianco C, Ridet JL, Schneider BL, et al. Alpha -Synucleinopathy and selective dopaminergic neuron loss in a rat lentiviral-based model of Parkinson's disease. Proc Natl Acad Sci U S A. 2002;99(16):10813-8.
Lo Bianco, C., Ridet, J. L., Schneider, B. L., Deglon, N., & Aebischer, P. (2002). Alpha -Synucleinopathy and selective dopaminergic neuron loss in a rat lentiviral-based model of Parkinson's disease. Proceedings of the National Academy of Sciences of the United States of America, 99(16), 10813-8.
Lo Bianco C, et al. Alpha -Synucleinopathy and Selective Dopaminergic Neuron Loss in a Rat Lentiviral-based Model of Parkinson's Disease. Proc Natl Acad Sci U S A. 2002 Aug 6;99(16):10813-8. PubMed PMID: 12122208.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - alpha -Synucleinopathy and selective dopaminergic neuron loss in a rat lentiviral-based model of Parkinson's disease. AU - Lo Bianco,C, AU - Ridet,J-L, AU - Schneider,B L, AU - Deglon,N, AU - Aebischer,P, Y1 - 2002/07/16/ PY - 2002/7/18/pubmed PY - 2002/9/24/medline PY - 2002/7/18/entrez SP - 10813 EP - 8 JF - Proceedings of the National Academy of Sciences of the United States of America JO - Proc Natl Acad Sci U S A VL - 99 IS - 16 N2 - Parkinson's disease (PD) is characterized by the progressive loss of substantia nigra dopaminergic neurons and the presence of cytoplasmic inclusions named Lewy bodies. Two missense mutations of the alpha-synuclein (alpha-syn; A30P and A53T) have been described in several families with an autosomal dominant form of PD. alpha-Syn also constitutes one of the main components of Lewy bodies in sporadic cases of PD. To develop an animal model of PD, lentiviral vectors expressing different human or rat forms of alpha-syn were injected into the substantia nigra of rats. In contrast to transgenic mice models, a selective loss of nigral dopaminergic neurons associated with a dopaminergic denervation of the striatum was observed in animals expressing either wild-type or mutant forms of human alpha-syn. This neuronal degeneration correlates with the appearance of abundant alpha-syn-positive inclusions and extensive neuritic pathology detected with both alpha-syn and silver staining. Lentiviral-mediated expression of wild-type or mutated forms of human alpha-syn recapitulates the essential neuropathological features of PD. Rat alpha-syn similarly leads to protein aggregation but without cell loss, suggesting that inclusions are not the primary cause of cell degeneration in PD. Viral-mediated genetic models may contribute to elucidate the mechanism of alpha-syn-induced cell death and allow the screening of candidate therapeutic molecules. SN - 0027-8424 UR - https://www.unboundmedicine.com/medline/citation/12122208/alpha__Synucleinopathy_and_selective_dopaminergic_neuron_loss_in_a_rat_lentiviral_based_model_of_Parkinson's_disease_ L2 - http://www.pnas.org/cgi/pmidlookup?view=long&pmid=12122208 DB - PRIME DP - Unbound Medicine ER -