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Título: | Cellular prion protein modulates β-amyloid deposition in aged APP/PS1 transgenic mice |
Autor: | Ordóñez-Gutiérrez, Lara CSIC ORCID; Torres, Juan María; Gavín, Rosalina; Antón Pérez, Marta; Arroba, Ana I. CSIC ORCID; Vergara, Cristina; Río, José Antonio del; Wandosell, Francisco CSIC ORCID | Palabras clave: | Aging Amyloid Prion Signaling Neurodegeneration |
Fecha de publicación: | 2013 | Editor: | Elsevier | Citación: | Neurobiology of Aging 34: 2793- 2804 (2013) | Resumen: | Alzheimer's disease and prion diseases are neuropathological disorders that are caused by abnormal processing and aggregation of amyloid and prion proteins. Interactions between amyloid precursor protein (APP) and PrPc proteins have been described at the neuron level. Accordingly to this putative interaction, we investigated whether β-amyloid accumulation may affect prion infectivity and, conversely, whether different amounts of PrP may affect β-amyloid accumulation. For this purpose, we used the APPswe/PS1dE9 mouse line, a common model of Alzheimer's disease, crossed with mice that either overexpress (Tga20) or that lack prion protein (knock-out) to generate mice that express varying amounts of prion protein and deposit β-amyloid. On these mouse lines, we investigated the influence of each protein on the evolution of both diseases. Our results indicated that although the presence of APP/PS1 and β-amyloid accumulation had no effect on prion infectivity, the accumulation of β-amyloid deposits was dependent on PrPc, whereby increasing levels of prion protein were accompanied by a significant increase in β-amyloid aggregation associated with aging. © 2013 Elsevier Inc. | URI: | http://hdl.handle.net/10261/95644 | DOI: | 10.1016/j.neurobiolaging.2013.05.019 | Identificadores: | doi: 10.1016/j.neurobiolaging.2013.05.019 issn: 0197-4580 |
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