Abstract Title:

Paraquat Treatment Compromises the Clearance ofβ-Amyloid and Tau Proteins and Induces Primary Hippocampal Neuronal Cell Death through HSP70, P20S, and TFEB Disruption.

Abstract Source:

Chem Res Toxicol. 2020 Nov 6. Epub 2020 Nov 6. PMID: 33156613

Abstract Author(s):

Paula Moyano, Javier Sanjuna, José Manuel Garcia, Jimena Garcia, María Teresa Frejo, María Victoria Naval, Javier Del Pino

Article Affiliation:

Paula Moyano


The herbicide paraquat (PQ) induces hippocampal neuronal cell loss and cognitive dysfunction after one and repeated treatment. All the mechanisms involved in these effects are not well understood. Single and repeated PQ treatment increased Aβ and tau protein levels, through HSP70 and TFEB downregulation and proteasome 20S inhibition, producing cell death in primary hippocampal neurons associated with cognitive decline. Our results reveal the mechanisms through which PQ could induce the accumulation of abnormal proteins and neurodegeneration that could originate the cognitive decline produced by it and could help managing its degenerative effects.

Study Type : Animal Study

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