Cited by 182Alzheimer's disease research and treatmentsGenetics, Aging, and Longevity in Model OrganismsMitochondrial Function and Pathology

Axonal Degeneration during Aging and Its Functional Role in Neurodegenerative Disorders

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Salvadores, Natalia, Sanhueza, Mario, Manque, Patricio, Court, Felipe A.·2017·Frontiers in Neuroscience

Abstract

Aging constitutes the main risk factor for the development of neurodegenerative diseases. This represents a major health issue worldwide that is only expected to escalate due to the ever-increasing life expectancy of the population. Interestingly, axonal degeneration, which occurs at early stages of neurodegenerative disorders (ND) such as Alzheimer's disease, Amyotrophic lateral sclerosis, and Parkinson's disease, also takes place as a consequence of normal aging. Moreover, the alteration of several cellular processes such as proteostasis, response to cellular stress and mitochondrial homeostasis, which have been described to occur in the aging brain, can also contribute to axonal pathology. Compelling evidence indicate that the degeneration of axons precedes clinical symptoms in NDs and occurs before cell body loss, constituting an early event in the pathological process and providing a potential therapeutic target to treat neurodegeneration before neuronal cell death. Although, normal aging and the development of neurodegeneration are two processes that are closely linked, the molecular basis of the switch that triggers the transition from healthy aging to neurodegeneration remains unrevealed. In this review we discuss the potential role of axonal degeneration in this transition and provide a detailed overview of the literature and current advances in the molecular understanding of the cellular changes that occur during aging that promote axonal degeneration and then discuss this in the context of ND.

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Authors
Salvadores, N., Sanhueza, M., Manque, P., & Court, F. A.
Affiliations
Universidad Mayor (CL)
Corresponding author
Court, Felipe A.
Venue
Frontiers in Neuroscience
Published
2017-09-04
Volume
11
Pages
451-451
ISSN
1662-453X (ISSN-L)
OpenAlex
W2740768704
Cited by
182
References
330
Citations by year
2026: 17 · 2025: 18 · 2024: 21 · 2023: 18 · 2022: 30 · 2021: 24 · 2020: 25 · 2019: 15 · 2018: 14
FWCI
1.81
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Neuroscience (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Americanae (AECID Library) (submittedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by-nc-nd)
Funders
  • International Development Research Centre
  • Israel Science Foundation
  • Azrieli Foundation
  • Canadian Institutes of Health Research
  • Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias (15150012, /FONDAP/15150012)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
axonal degeneration, aging, neurodegenerative diseases, Alzheimer's disease, amyotrophic lateral sclerosis, Parkinson's disease, proteostasis, cellular stress response, mitochondrial homeostasis, therapeutic target

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