Mitochondrial dysfunction as a trigger of programmed axon death.
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Merlini, E., Coleman, M., & Loreto, A. (2022). Mitochondrial dysfunction as a trigger of programmed axon death.. Trends Neurosci https://doi.org/10.1016/j.tins.2021.10.014
Mitochondrial failure has long been associated with programmed axon death (Wallerian degeneration, WD), a widespread and potentially preventable mechanism of axon degeneration. While early findings in axotomised axons indicated that mitochondria are involved during the execution steps of this pathway, recent studies suggest that in addition, mitochondrial dysfunction can initiate programmed axon death without physical injury. As mitochondrial dysfunction is associated with disorders involving early axon loss, including Parkinson's disease, peripheral neuropathies, and multiple sclerosis, the findings that programmed axon death is activated by mitochondrial impairment could indicate the involvement of druggable mechanisms whose disruption may protect axons in such diseases. Here, we review the latest developments linking mitochondrial dysfunction to programmed axon death and discuss their implications for injury and disease.
Wellcome Trust (210904/Z/18/Z)
Biotechnology and Biological Sciences Research Council (BB/S009582/1)
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External DOI: https://doi.org/10.1016/j.tins.2021.10.014
This record's URL: https://www.repository.cam.ac.uk/handle/1810/330692
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