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SUMOylation balance: a key determinant in synapse physiology
Alessia Bertozzi1, Walter Toscanelli1, Giuditta Castellitto2
1Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy.
Frontiers in Physiology
|October 17, 2025
Summary
Small Ubiquitin-like Modifier (SUMO)ylation is a key post-translational modification regulating neuronal communication. Understanding SUMOylation
Area of Science:
- Neuroscience
- Molecular Biology
- Biochemistry
Background:
- Synaptic function relies on precise protein regulation.
- Post-translational modifications (PTMs) are crucial for controlling protein activity and localization.
- SUMOylation, a dynamic PTM, significantly impacts nervous system function.
Purpose of the Study:
- To review the enzymatic cascade of SUMOylation and its impact on protein function.
- To elucidate the role of SUMOylation within synaptic compartments.
- To discuss the therapeutic potential of modulating SUMOylation in neurodegenerative diseases like Alzheimer's.
Main Methods:
- Literature review of SUMOylation mechanisms and synaptic regulation.
- Analysis of SUMOylation's role in neurotransmission and synaptic plasticity.
- Exploration of SUMOylation dysregulation in neurological disorders.
Main Results:
- SUMOylation regulates protein conformation, interactions, stability, and localization.
- SUMOylation is essential for spatiotemporal control in synaptic compartments.
- Imbalances in SUMOylation are linked to synaptic dysfunction in Alzheimer's disease.
Conclusions:
- SUMOylation is a critical regulator of synaptic structure and function.
- Dysregulated SUMOylation contributes to neurodegenerative pathologies.
- Targeting SUMOylation pathways offers potential therapeutic strategies for neurological disorders.
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