NeuralCipher Research overview
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Parkinson's disease (PD) is one of the most common neurodegenerative diseases and is pathologically characterized by α-synucleinopathy, which is harmful to dopaminergic neurons. However, the underlying mechanisms and pathogenesis of PD remain unclear. The AAA + ATPase Thorase was identified as being essential for neuroprotection and synaptic plasticity by regulating the AMPA receptor trafficking. Here, we found that conditional knockout of Thorase resulted in motor behaviors indicative of neurodegeneration. Genetic deletion of Thorase exacerbated phenotypes of α-synucleinopathy in a familial PD-like A53T mouse model, whereas overexpression of Thorase prevented α-syn accumulation in vivo. Biochemical and cell cultures studies presented here suggest that Thorase interacts with α-syn and regulates the degradation of ubiquitinated α-syn. Thorase deficiency promotes α-syn aggregation in primary cultured neurons. The discoveries in this study provide us with a further understanding of the pathogenesis of α-synucleinopathies including PD.
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