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Updated: Jul 6, 2025
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Molecular Modulation by Lentivirus-Delivered Specific shRNAs in Endoplasmic Reticulum Stressed Neurons
Published on: April 24, 2021
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Localized molecular chaperone synthesis maintains neuronal dendrite proteostasis
Maria Vera Ugalde1, Célia Alecki1, Javeria Rizwan1
1McGill University.
Research Square
|January 3, 2024
Summary
Neurons enhance proteostasis by transporting chaperone messenger RNAs (mRNAs) to dendrites during proteotoxic stress. This involves increased HSPA8 mRNA translation, crucial for preventing neurodegeneration.
Area of Science:
- Neuroscience
- Molecular Biology
- Cell Biology
Background:
- Proteostasis, essential for neuronal function, is challenged by the unique demands of neuronal projections.
- Maintaining protein homeostasis in dendrites requires efficient protein synthesis and folding, complicated by polarized morphology and synaptic remodeling.
Conclusions:
- Neurons employ an active stress response involving microtubule-based transport of chaperone mRNAs to dendrites.
- RNA-binding proteins play a critical role in regulating HSPA8 mRNA localization for maintaining dendritic proteostasis.
- This mechanism is vital for neuronal resilience and preventing neurodegeneration.
Keywords:
Neuronamyotrophic lateral sclerosisdendriteheat shock proteinlocalized translationmRNAneurodegenerationprotein homeostasissingle-molecule fluorescence microscopyMore Related Videos
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