000095792 001__ 95792
000095792 005__ 20220208112848.0
000095792 0247_ $$2doi$$a10.3389/fbioe.2020.00975
000095792 0248_ $$2sideral$$a120227
000095792 037__ $$aART-2020-120227
000095792 041__ $$aeng
000095792 100__ $$0(orcid)0000-0003-2454-2114$$aLópez-Pérez, O.
000095792 245__ $$aAn Update on Autophagy in Prion Diseases
000095792 260__ $$c2020
000095792 5060_ $$aAccess copy available to the general public$$fUnrestricted
000095792 5203_ $$aAutophagy is a dynamic intracellular mechanism involved in protein and organelle turnover through lysosomal degradation. When properly regulated, autophagy supports normal cellular and developmental processes, whereas defects in autophagic degradation have been associated with several pathologies, including prion diseases. Prion diseases, or transmissible spongiform encephalopathies (TSE), are a group of fatal neurodegenerative disorders characterized by the accumulation of the pathological misfolded isoform (PrPSc) of the physiological cellular prion protein (PrPc) in the central nervous system. Autophagic vacuoles have been described in experimental models of TSE and in the natural disease in humans. The precise connection of this process with prion-related neuropathology, or even whether autophagy is completely beneficial or pathogenic during neurodegeneration, is poorly understood. Thus, the biological role of autophagy in these diseases is still open to debate. During the last years, researchers have used a wide range of morphological, genetic and biochemical methods to monitor and manipulate the autophagic pathway and thus determine the specific role of this process in TSE. It has been suggested that PrPc could play a crucial role in modulating the autophagic pathway in neuronal cells, and the presence of abnormal autophagic activity has been frequently observed in several models of TSE both in vitro and in vivo, as well as in human prion diseases. Altogether, these findings suggest that autophagy is implicated in prion neuropathology and points to an impairment or failure of the process, potentially contributing to the pathogenesis of the disease. Additionally, autophagy is now emerging as a host defense response in controlling prion infection that plays a protective role by facilitating the clearance of aggregation-prone proteins accumulated within neurons. Since autophagy is one of the pathways of PrPSc degradation, and drug-induced stimulation of autophagic flux (the dynamic process of autophagic degradation activity) produces anti-prion effects, new treatments based on its activation have been tested to develop therapeutic strategies for prion diseases. In this review, we summarize previous and recent findings concerning the role of autophagy in TSE.
000095792 536__ $$9info:eu-repo/grantAgreement/EUR/INTERREG-V-POCTEFA-2014-2020$$9info:eu-repo/grantAgreement/ES/ISCIII/PI19-00144
000095792 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000095792 590__ $$a5.89$$b2020
000095792 591__ $$aMULTIDISCIPLINARY SCIENCES$$b12 / 73 = 0.164$$c2020$$dQ1$$eT1
000095792 592__ $$a1.081$$b2020
000095792 593__ $$aBioengineering$$c2020$$dQ1
000095792 593__ $$aHistology$$c2020$$dQ1
000095792 593__ $$aBiotechnology$$c2020$$dQ1
000095792 593__ $$aBiomedical Engineering$$c2020$$dQ1
000095792 655_4 $$ainfo:eu-repo/semantics/review$$vinfo:eu-repo/semantics/publishedVersion
000095792 700__ $$0(orcid)0000-0002-7173-7216$$aBadiola, J.J.$$uUniversidad de Zaragoza
000095792 700__ $$0(orcid)0000-0002-2746-3932$$aBolea, R.$$uUniversidad de Zaragoza
000095792 700__ $$aFerrer, I.
000095792 700__ $$aLlorens, F.
000095792 700__ $$0(orcid)0000-0001-6016-4726$$aMartín-Burriel, I.$$uUniversidad de Zaragoza
000095792 7102_ $$11001$$2420$$aUniversidad de Zaragoza$$bDpto. Anatom.,Embri.Genét.Ani.$$cÁrea Genética
000095792 7102_ $$11009$$2773$$aUniversidad de Zaragoza$$bDpto. Patología Animal$$cÁrea Sanidad Animal
000095792 773__ $$g8 (2020), 975 [15 pp]$$pFront. Bioeng. Biotechnol.$$tFrontiers in Bioengineering and Biotechnology$$x2296-4185
000095792 8564_ $$s323076$$uhttps://zaguan.unizar.es/record/95792/files/texto_completo.pdf$$yVersión publicada
000095792 8564_ $$s530026$$uhttps://zaguan.unizar.es/record/95792/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000095792 909CO $$ooai:zaguan.unizar.es:95792$$particulos$$pdriver
000095792 951__ $$a2022-02-08-11:24:57
000095792 980__ $$aARTICLE