PMID- 30791416 OWN - NLM STAT- MEDLINE DCOM- 20190604 LR - 20200225 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 20 IP - 4 DP - 2019 Feb 19 TI - Autophagy Activator Drugs: A New Opportunity in Neuroprotection from Misfolded Protein Toxicity. LID - 10.3390/ijms20040901 [doi] LID - 901 AB - The aim of this review is to critically analyze promises and limitations of pharmacological inducers of autophagy against protein misfolding-associated neurodegeneration. Effective therapies against neurodegenerative disorders can be developed by regulating the "self-defense" equipment of neurons, such as autophagy. Through the degradation and recycling of the intracellular content, autophagy promotes neuron survival in conditions of trophic factor deprivation, oxidative stress, mitochondrial and lysosomal damage, or accumulation of misfolded proteins. Autophagy involves the activation of self-digestive pathways, which is different for dynamics (macro, micro and chaperone-mediated autophagy), or degraded material (mitophagy, lysophagy, aggrephagy). All neurodegenerative disorders share common pathogenic mechanisms, including the impairment of autophagic flux, which causes the inability to remove the neurotoxic oligomers of misfolded proteins. Pharmacological activation of autophagy is typically achieved by blocking the kinase activity of mammalian target of rapamycin (mTOR) enzymatic complex 1 (mTORC1), removing its autophagy suppressor activity observed under physiological conditions; acting in this way, rapamycin provided the first proof of principle that pharmacological autophagy enhancement can induce neuroprotection through the facilitation of oligomers' clearance. The demand for effective disease-modifying strategies against neurodegenerative disorders is currently stimulating the development of a wide number of novel molecules, as well as the re-evaluation of old drugs for their pro-autophagic potential. FAU - Thellung, Stefano AU - Thellung S AD - Sezione di Farmacologia, Dipartimento di Medicina Interna & Centro di Eccellenza per la Ricerca Biomedica (CEBR), Universita di Genova, 16132 Genova, Italy. stefano.thellung@unige.it. FAU - Corsaro, Alessandro AU - Corsaro A AD - Sezione di Farmacologia, Dipartimento di Medicina Interna & Centro di Eccellenza per la Ricerca Biomedica (CEBR), Universita di Genova, 16132 Genova, Italy. ale.corsaro@unige.it. FAU - Nizzari, Mario AU - Nizzari M AD - Sezione di Farmacologia, Dipartimento di Medicina Interna & Centro di Eccellenza per la Ricerca Biomedica (CEBR), Universita di Genova, 16132 Genova, Italy. mario.nizzari@unige.it. FAU - Barbieri, Federica AU - Barbieri F AD - Sezione di Farmacologia, Dipartimento di Medicina Interna & Centro di Eccellenza per la Ricerca Biomedica (CEBR), Universita di Genova, 16132 Genova, Italy. federica.barbieri@unige.it. FAU - Florio, Tullio AU - Florio T AUID- ORCID: 0000-0002-2394-996X AD - Sezione di Farmacologia, Dipartimento di Medicina Interna & Centro di Eccellenza per la Ricerca Biomedica (CEBR), Universita di Genova, 16132 Genova, Italy. tullio.florio@unige.it. AD - IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy. tullio.florio@unige.it. LA - eng PT - Journal Article PT - Review DEP - 20190219 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Biomarkers) RN - 0 (Protein Aggregates) SB - IM MH - Animals MH - Autophagy/*drug effects/genetics MH - Biomarkers MH - *Drug Discovery/methods MH - Humans MH - Lysosomes/drug effects/genetics/metabolism MH - Mitochondria/drug effects/genetics/metabolism MH - Neurodegenerative Diseases/drug therapy/etiology/metabolism/pathology MH - Neuroprotection/*drug effects MH - Protein Aggregates MH - Protein Aggregation, Pathological MH - Protein Binding MH - Protein Conformation MH - Protein Folding MH - Protein Multimerization MH - Proteostasis Deficiencies/drug therapy/etiology/metabolism/pathology MH - Structure-Activity Relationship PMC - PMC6412775 OTO - NOTNLM OT - autophagy OT - mTOR OT - neurodegenerative diseases OT - protein misfolding OT - rapamycin COIS- The authors have no conflict of interest to declare. EDAT- 2019/02/23 06:00 MHDA- 2019/06/05 06:00 PMCR- 2019/02/01 CRDT- 2019/02/23 06:00 PHST- 2019/01/24 00:00 [received] PHST- 2019/02/11 00:00 [revised] PHST- 2019/02/14 00:00 [accepted] PHST- 2019/02/23 06:00 [entrez] PHST- 2019/02/23 06:00 [pubmed] PHST- 2019/06/05 06:00 [medline] PHST- 2019/02/01 00:00 [pmc-release] AID - ijms20040901 [pii] AID - ijms-20-00901 [pii] AID - 10.3390/ijms20040901 [doi] PST - epublish SO - Int J Mol Sci. 2019 Feb 19;20(4):901. doi: 10.3390/ijms20040901.