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Updated: Jul 3, 2025
08:53
Assay to Measure Nucleocytoplasmic Transport in Real Time within Motor Neuron-like NSC-34 Cells
Published on: May 16, 2017
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Altered nuclear envelope homeostasis is a key pathogenic event in C9ORF72-linked ALS/FTD
Biorxiv : the Preprint Server for Biology
|February 14, 2024
Summary
Loss of nuclear envelope integrity drives neuronal death in ALS and FTD. Restoring nuclear tensional homeostasis rescues this damage, offering a new therapeutic target for these neurodegenerative diseases.
Area of Science:
- Neuroscience
- Cell Biology
- Genetics
Background:
- Amyotrophic Lateral Sclerosis (ALS) and Frontotemporal Dementia (FTD) are neurodegenerative disorders impacting motor and cortical neurons.
- Pathogenesis involves nucleocytoplasmic transport issues, DNA damage, and nuclear abnormalities.
Approach:
- Investigated nuclear envelope (NE) integrity and nuclear pore complex (NPC) injury in C9ORF72 mutant neurons.
- Examined mechanical stresses from cytoskeletal forces on the NE.
- Tested NE tensional homeostasis restoration as a therapeutic strategy.
Key Points:
- Loss of NE integrity and NPC injury are key pathologies in C9ORF72-related ALS/FTD.
- Cytoskeletal forces induce NE damage, NPC injury, and DNA damage.
- Disconnecting the nucleus from the cytoskeleton restores NE homeostasis, rescuing NPC injury and DNA damage.
Conclusions:
- NE tensional homeostasis is crucial for neuronal health in ALS/FTD.
- Targeting NE integrity and repair presents a promising therapeutic avenue for ALS/FTD.
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