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• W3048562479 endingPage "14188" @default.
• W3048562479 startingPage "14178" @default.
• W3048562479 abstract "Cellular prion protein (PrPC) is a widely expressed glycosylphosphatidylinositol-anchored membrane protein. Scrapie prion protein is a misfolded and aggregated form of PrPC responsible for prion-induced neurodegenerative diseases. Understanding the function of the nonpathogenic PrPC monomer is an important objective. PrPC may be shed from the cell surface to generate soluble derivatives. Herein, we studied a recombinant derivative of PrPC (soluble cellular prion protein, S-PrP) that corresponds closely in sequence to a soluble form of PrPC shed from the cell surface by proteases in the A Disintegrin And Metalloprotease (ADAM) family. S-PrP activated cell-signaling in PC12 and N2a cells. TrkA was transactivated by Src family kinases and extracellular signal-regulated kinase 1/2 was activated downstream of Trk receptors. These cell-signaling events were dependent on the N-methyl-d-aspartate receptor (NMDA-R) and low-density lipoprotein receptor-related protein-1 (LRP1), which functioned as a cell-signaling receptor system in lipid rafts. Membrane-anchored PrPC and neural cell adhesion molecule were not required for S-PrP-initiated cell-signaling. S-PrP promoted PC12 cell neurite outgrowth. This response required the NMDA-R, LRP1, Src family kinases, and Trk receptors. In Schwann cells, S-PrP interacted with the LRP1/NMDA-R system to activate extracellular signal-regulated kinase 1/2 and promote cell migration. The effects of S-PrP on PC12 cell neurite outgrowth and Schwann cell migration were similar to those caused by other proteins that engage the LRP1/NMDA-R system, including activated α2-macroglobulin and tissue-type plasminogen activator. Collectively, these results demonstrate that shed forms of PrPC may exhibit important biological activities in the central nervous system and the peripheral nervous system by serving as ligands for the LRP1/NMDA-R system." @default.
• W3048562479 created "2020-08-18" @default.
• W3048562479 creator A5006406028 @default.
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• W3048562479 date "2020-10-01" @default.
• W3048562479 modified "2023-10-13" @default.
• W3048562479 title "A soluble derivative of PrPC activates cell-signaling and regulates cell physiology through LRP1 and the NMDA receptor" @default.
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• W3048562479 doi "https://doi.org/10.1074/jbc.ra120.013779" @default.
• W3048562479 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7549038" @default.
• W3048562479 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32788217" @default.
• W3048562479 hasPublicationYear "2020" @default.
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