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Updated: Jun 10, 2025
Author Spotlight: Decoding Mitochondrial Aging
Published on: June 30, 2023
Enhancing CNS mitophagy: drug development and disease-relevant models
Krishayant S Dhar1, Brendan Townsend2, Andrew P Montgomery1
1School of Chemistry, Faculty of Science, University of Sydney, Sydney, NSW 2006, Australia.
Abstract:
Mitophagy, the selective degradation of mitochondria, is impaired in many neurodegenerative diseases (NDs), resulting in an accumulation of dysfunctional mitochondria and neuronal damage. Although enhancing mitophagy shows promise as a therapeutic strategy, the clinical significance of mitophagy activators remains uncertain due to limited understanding and poor representation of mitophagy in the central nervous system (CNS). This review explores recent insights into which mitophagy pathways to target and the extent of modulation necessary to be therapeutic towards NDs. We also highlight the complexities of mitophagy in the CNS, highlighting the need for disease-relevant models. Last, we outline crucial aspects of in vitro models to consider during drug discovery, aiming to bridge the gap between preclinical research and clinical applications in treating NDs through mitophagy modulation.
Insights
Mitophagy, the process of clearing damaged mitochondria, is crucial for brain health and neurodegenerative disease treatment. Understanding and enhancing mitophagy in the central nervous system is key for developing new therapies.
Area of Science:
- Neuroscience
- Cell Biology
- Biochemistry
Background:
- Mitophagy, the selective removal of damaged mitochondria, is impaired in neurodegenerative diseases (NDs), leading to neuronal dysfunction.
- Current understanding and therapeutic strategies for mitophagy activators in the central nervous system (CNS) are limited.
- Dysfunctional mitochondria accumulation contributes to neuronal damage in NDs.
Purpose of the Study:
- To review current insights into mitophagy pathways for targeting neurodegenerative diseases.
- To explore the necessary extent of mitophagy modulation for therapeutic effects in NDs.
- To highlight the complexities of mitophagy in the CNS and the need for disease-relevant models.
Main Methods:
- Literature review of recent research on mitophagy pathways and CNS applications.
- Analysis of challenges in studying mitophagy in the central nervous system.
- Discussion of in vitro model considerations for drug discovery in NDs.
Main Results:
- Identified key mitophagy pathways and modulation levels for potential therapeutic intervention in NDs.
- Highlighted significant complexities and knowledge gaps in CNS mitophagy research.
- Emphasized the need for improved, disease-relevant models for preclinical studies.
Conclusions:
- Targeting specific mitophagy pathways with appropriate modulation could offer therapeutic benefits for neurodegenerative diseases.
- Further research using advanced, CNS-specific models is essential to advance mitophagy-based therapies.
- Bridging the gap between preclinical findings and clinical application requires careful consideration of in vitro model systems.
