PMID- 33933601 OWN - NLM STAT- MEDLINE DCOM- 20210628 LR - 20240402 IS - 1873-4596 (Electronic) IS - 0891-5849 (Print) IS - 0891-5849 (Linking) VI - 169 DP - 2021 Jun TI - mTOR in Alzheimer disease and its earlier stages: Links to oxidative damage in the progression of this dementing disorder. PG - 382-396 LID - S0891-5849(21)00260-4 [pii] LID - 10.1016/j.freeradbiomed.2021.04.025 [doi] AB - Alzheimer's disease (AD) is the most prevalent form of dementia in the elderly population and has worldwide impact. The etiology of the disease is complex and results from the confluence of multiple mechanisms ultimately leading to neuronal loss and cognitive decline. Among risk factors, aging is the most relevant and accounts for several pathogenic events that contribute to disease-specific toxic mechanisms. Accumulating evidence linked the alterations of the mammalian target of rapamycin (mTOR), a serine/threonine protein kinase playing a key role in the regulation of protein synthesis and degradation, to age-dependent cognitive decline and pathogenesis of AD. To date, growing studies demonstrated that aberrant mTOR signaling in the brain affects several pathways involved in energy metabolism, cell growth, mitochondrial function and proteostasis. Recent advances associated alterations of the mTOR pathway with the increased oxidative stress. Disruption of all these events strongly contribute to age-related cognitive decline including AD. The current review discusses the main regulatory roles of mTOR signaling network in the brain, focusing on its role in autophagy, oxidative stress and energy metabolism. Collectively, experimental data suggest that targeting mTOR in the CNS can be a valuable strategy to prevent/slow the progression of AD. CI - Copyright (c) 2021 Elsevier Inc. All rights reserved. FAU - Perluigi, M AU - Perluigi M AD - Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, Piazzale A. Moro 5, 00185, Roma, Italy. FAU - Di Domenico, F AU - Di Domenico F AD - Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, Piazzale A. Moro 5, 00185, Roma, Italy. FAU - Barone, E AU - Barone E AD - Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, Piazzale A. Moro 5, 00185, Roma, Italy. FAU - Butterfield, D A AU - Butterfield DA AD - Department of Chemistry, Sapienza University of Rome, Piazzale A. Moro 5, 00185, Roma, Italy; Department of Chemistry and Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, 40506-0055, USA. Electronic address: dabcns@uky.edu. LA - eng GR - R01 AG060056/AG/NIA NIH HHS/United States GR - R56 AG055596/AG/NIA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Review DEP - 20210430 PL - United States TA - Free Radic Biol Med JT - Free radical biology & medicine JID - 8709159 RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Aged MH - *Alzheimer Disease MH - Autophagy MH - Humans MH - Oxidative Stress MH - Signal Transduction MH - TOR Serine-Threonine Kinases/genetics/metabolism PMC - PMC8145782 MID - NIHMS1701110 OTO - NOTNLM OT - Alzheimer's disease OT - Oxidative stress OT - Protein aggregation OT - Proteostasis OT - mTOR EDAT- 2021/05/03 06:00 MHDA- 2021/06/29 06:00 PMCR- 2022/06/01 CRDT- 2021/05/02 20:45 PHST- 2021/04/07 00:00 [received] PHST- 2021/04/15 00:00 [accepted] PHST- 2021/05/03 06:00 [pubmed] PHST- 2021/06/29 06:00 [medline] PHST- 2021/05/02 20:45 [entrez] PHST- 2022/06/01 00:00 [pmc-release] AID - S0891-5849(21)00260-4 [pii] AID - 10.1016/j.freeradbiomed.2021.04.025 [doi] PST - ppublish SO - Free Radic Biol Med. 2021 Jun;169:382-396. doi: 10.1016/j.freeradbiomed.2021.04.025. Epub 2021 Apr 30.