Cited by 45Autophagy in Disease and TherapyAlzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration Mechanisms

Compromised autophagy and mitophagy in brain ageing and Alzheimer’s diseases.

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Caponio, Domenica, Veverová, Kateřina, Zhang, Shi-qi, Shi, Liu, Wong, Garry, Vyhnalek, Martin, Fang, Evandro F.·2022·Aging Brain

Abstract

Alzheimer's disease (AD) is one of the most persistent and devastating neurodegenerative disorders of old age, and is characterized clinically by an insidious onset and a gradual, progressive deterioration of cognitive abilities, ranging from loss of memory to impairment of judgement and reasoning. Despite years of research, an effective cure is still not available. Autophagy is the cellular 'garbage' clearance system which plays fundamental roles in neurogenesis, neuronal development and activity, and brain health, including memory and learning. A selective sub-type of autophagy is mitophagy which recognizes and degrades damaged or superfluous mitochondria to maintain a healthy and necessary cellular mitochondrial pool. However, emerging evidence from animal models and human samples suggests an age-dependent reduction of autophagy and mitophagy, which are also compromised in AD. Upregulation of autophagy/mitophagy slows down memory loss and ameliorates clinical features in animal models of AD. In this review, we give an overview of autophagy and mitophagy and their link to the progression of AD. We also summarize approaches to upregulate autophagy/mitophagy. We hypothesize that age-dependent compromised autophagy/mitophagy is a cause of brain ageing and a risk factor for AD, while restoration of autophagy/mitophagy to more youthful levels could return the brain to health.

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  • The anti-aging effects of DRP1 require functional mitophagy, which is typically compromised in the aging brain.

    “the anti-aging effects of DRP1 require functional mitophagy, which is typically compromised in the aging brain (Caponio et al., 2022).”

    From Aging promotes an increase in mitochondrial fragmentation in astrocytes (2024) · cites this paper as Caponio et al., 2022

    The ‘Impaired autophagy and mitophagy in normal ageing brain’ section reports that Drp1 overexpression increased lifespan in flies and that evidence from human post-mortem brains reflects mitophagy dysfunction with ageing. It does not establish that Drp1’s lifespan benefit requires functional mitophagy; the reported Drp1 result is also in flies, not the ageing human brain. (LLM, conf=0.87)

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Cited by

Sorted by citations

Authors
Caponio, D., Veverová, K., Zhang, S.-Q., Shi, L., Wong, G., Vyhnalek, M., & Fang, E. F.
Affiliations
  • University of Oslo (NO)
  • Charles University (CZ)
  • University of Oxford (GB)
  • University of Macau (MO)
Corresponding author
Fang, Evandro F.
Venue
Aging Brain
Publisher
Elsevier BV
Published
2022
Volume
2
Pages
100056
ISSN
2589-9589 (ISSN-L)
OpenAlex
W4312623056
Cited by
45
References
34
Citations by year
2026: 12 · 2025: 14 · 2024: 14 · 2023: 5
FWCI
1.28
Type
journal article
Language
en
Open access
Locations
  • Aging Brain (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Zenodo (CERN European Organization for Nuclear Research) (submittedVersion, cc-by)
Funders
  • Cure Alzheimer's Fund
  • Technology Agency of the Czech Republic (TO01000215)
  • National Natural Science Foundation of China (#81971327, 2020-001, 207819, LX22NPO5107, 262960, TO01000215, 269901, 281931, 2021-021, 262175, 261973)
  • Ministerstvo Školství, Mládeže a Tělovýchovy (LX22NPO5107)
  • China Scholarship Council
  • NordForsk (81971327, 119986)
  • Norges Forskningsråd (269901, 282942, 2021021, #262175, 261973, 281931, TO01000215, 81971327, 2020001, 207819, 262960)
  • Akershus Universitetssykehus (281931, TO01000215, 2020001, 262175, 81971327, #269901, 2021021, 261973, #262960, 207819)
  • NextGenerationEU
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
autophagy, mitophagy, Alzheimer's disease, brain aging, neurodegeneration, mitochondrial quality control, memory loss, age-related decline

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