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- W4387331331 abstract "Mutations of proline-rich transmembrane protein 2 (PRRT2) lead to dyskinetic disorders such as paroxysmal kinesigenic dyskinesia (PKD), which is characterized by attacks of involuntary movements precipitated by suddenly initiated motion, and some convulsive disorders. Although previous studies have shown that PKD might be caused by cerebellar dysfunction, PRRT2 has not been sufficiently analyzed in some motor-related regions including the basal ganglia, where dopaminergic neurons are most abundant in the brain. Here, we generated several types of Prrt2 knock-in (KI) mice harboring mutations, such as c.672dupG, that mimics the human pathological mutation c.649dupC and investigated the contribution of Prrt2 to dopaminergic regulation. Regardless of differences in the frameshift sites, all truncating mutations abolished Prrt2 expression within the striatum and cerebral cortex, consistent with previous reports of similar Prrt2 mutant rodents, confirming the loss-of-function nature of these mutations. Importantly, administration of L-dopa, a precursor of dopamine, exacerbated rotarod performance, especially in Prrt2-KI mice. These findings suggest that dopaminergic dysfunction in the brain by the PRRT2 mutation might be implicated in a part of motor symptoms of PKD and related disorders." @default.
- W4387331331 created "2023-10-05" @default.
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- W4387331331 date "2023-10-04" @default.
- W4387331331 modified "2023-10-06" @default.
- W4387331331 title "Proline-rich transmembrane protein 2 knock-in mice present dopamine-dependent motor deficits" @default.
- W4387331331 doi "https://doi.org/10.1093/jb/mvad074" @default.
- W4387331331 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37793168" @default.
- W4387331331 hasPublicationYear "2023" @default.
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