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Updated: Sep 21, 2025

Author Spotlight: Decoding Mitochondrial Aging
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Author Spotlight: Decoding Mitochondrial Aging

Published on: June 30, 2023

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Defective mitophagy and the etiopathogenesis of Alzheimer's disease

Kuan Zeng1,2,3,4, Xuan Yu3, Yacoubou Abdoul Razak Mahaman3

  • 1Department of Psychiatry, Wuhan Mental Health Center, Wuhan, 430012, China.

Translational Neurodegeneration
|June 2, 2022
PubMed

Insights

Impaired mitophagy, a cellular cleaning process, contributes to aging and Alzheimer's disease (AD) by causing mitochondrial dysfunction. Targeting mitophagy deficits offers a potential strategy for AD prevention and treatment.

Area of Science:

  • Cellular Biology
  • Neuroscience
  • Aging Research

Background:

  • Mitochondrial dysfunction and impaired energy metabolism are hallmarks of aging and neurodegenerative diseases like Alzheimer's disease (AD).
  • Disruptions in mitophagy, the selective degradation of damaged mitochondria, are increasingly implicated in the pathogenesis of AD.

Purpose of the Study:

  • To elucidate the molecular mechanisms underlying mitophagy.
  • To investigate the role of mitophagy deficits in the development and progression of Alzheimer's disease (AD).
  • To explore mitophagy as a potential therapeutic target for AD.

Main Methods:

  • Review of current literature on mitophagy, mitochondrial dynamics, and Alzheimer's disease.
  • Analysis of the interplay between mitophagy, amyloid-beta (Aβ) and Tau pathologies.
  • Investigation of cellular and molecular pathways involved in mitophagy regulation.

Main Results:

  • Defective mitophagy contributes to the accumulation of damaged mitochondria and energy metabolism disorders in aging and AD.
  • Mitophagy deficits may exacerbate Aβ and Tau pathologies, creating a detrimental cycle leading to neuronal damage.
  • Understanding mitophagy mechanisms provides insights into AD etiology.

Conclusions:

  • Mitophagy dysfunction is a significant factor in Alzheimer's disease development.
  • The interaction between mitophagy deficits and AD pathologies drives neurodegeneration.
  • Enhancing mitophagy presents a promising therapeutic avenue for AD prevention and treatment.
Keywords:
Alzheimer’s diseaseAβMitophagyPINK1Tau

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