DOI: 10.1101/2023.05.25.542172

Mice expressing A53T / A30P mutant alpha-synuclein in dopamine neurons do not display behavioral deficits

C.Keomanivong J. Schamp E. Tabakovic R. Thangavel G. Aldridge A. Pieper N. Narayanan

C.Keomanivong J. Schamp E. Tabakovic ...+3 N. Narayanan

摘要

Alpha-synuclein has been implicated in neurodegenerative diseases such as Parkinsons disease and Dementia with Lewy bodies, with A53T and A30P mutations shown to be disease-causing. It has been reported that transgenic mice with tyrosine hydroxylase promotor-driven expression of A53T / A30P mutant alpha-synuclein in dopamine neurons provide a useful preclinical model of these conditions by virtue of developing dopaminergic neuronal cell death and related behavioral deficits. Here, we report a lack of replication of this finding. Despite detecting robust overexpression of A53T / A30P mutant alpha-synuclein in dopamine neurons, we observed neither cell death or related behavioral deficits in these mice. Our results demonstrate that preclinical models of synucleinopathy need careful validation in the field.

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