Abstract
Although neuronal cell death through apoptotic pathways represents a common feature of dysferopathies, the canonical apoptotic changes familiar from nonneuronal cells are late events. Loss of neuronal function occurs at a much early time, when synaptic-based neuronal connectivity fails. In this context, apoptotic pathways may normally serve a cleanup role, rather than a pathogenic one. Reframing the consideration of cell death in the nervous system to include the early stages of axonal degeneration provides a better understanding of the roles played by various apoptotic signaling pathways in neurodegenerative diseases. Focusing on disease-specific mechanisms that initiate the sequence that eventually leads to neuronal loss should facilitate development of therapies that preserve neuronal function and neuronal numbers.
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Acknowledgements
This work was supported by grants from NINDS (NS23868) and MDA to S.B. and from the Huntington’s Disease Society of America and the ALS/CVS Therapy Alliance to G.M..
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Brady, S., Morfini, G. A Perspective on Neuronal Cell Death Signaling and Neurodegeneration. Mol Neurobiol 42, 25–31 (2010). https://doi.org/10.1007/s12035-010-8128-2
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DOI: https://doi.org/10.1007/s12035-010-8128-2