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Updated: Aug 29, 2026

Real-Time Fluorescent Measurement of Synaptic Functions in Models of Amyotrophic Lateral Sclerosis
Published on: July 16, 2021
Cyclin-dependent kinase 5 in amyotrophic lateral sclerosis
Minh Dang Nguyen1, Jean-Pierre Julien
1Department of Pathology, Harvard Medical School, Boston, Mass. 02115, USA. minh-dang_nguyen@hms.harvard.edu
Abstract:
Amyotrophic lateral sclerosis is a neurological disorder that selectively affects motor neurons of brain and spinal cord. Emerging evidence indicates an involvement of the serine/threonine-cyclin-dependent kinase 5 (Cdk5) in the pathogenesis. Deregulation of Cdk5 by its truncated co-activators, p25 and p29, contributes to neurodegeneration by altering the phosphorylation state of cytosolic and cytoskeletal proteins and, possibly, through the induction of cell cycle regulators. The present paper reviews these findings and proposes new perspectives to decipher the mechanisms of neurodegeneration in amyotrophic lateral sclerosis induced by Cdk5.
Insights
Amyotrophic lateral sclerosis (ALS) involves motor neuron damage. The serine/threonine-cyclin-dependent kinase 5 (Cdk5) and its co-activators play a role in ALS neurodegeneration.
Area of Science:
- Neuroscience
- Molecular Biology
- Neuropathology
Background:
- Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease impacting motor neurons in the brain and spinal cord.
- The serine/threonine-cyclin-dependent kinase 5 (Cdk5) pathway is increasingly implicated in neurodegenerative disorders.
- Dysregulation of Cdk5 has been observed in the context of ALS pathogenesis.
Purpose of the Study:
- To review current findings on the role of Cdk5 in ALS.
- To explore the mechanisms by which Cdk5 contributes to motor neuron degeneration.
- To propose novel perspectives for understanding Cdk5-induced neurodegeneration in ALS.
Main Methods:
- Literature review of existing research on Cdk5 and ALS.
- Analysis of studies investigating Cdk5 co-activators (p25, p29) in neurodegeneration.
- Synthesis of evidence linking Cdk5 activity to altered protein phosphorylation and cell cycle regulation.
Main Results:
- Emerging evidence links Cdk5 to the pathogenesis of ALS.
- Truncated Cdk5 co-activators, p25 and p29, contribute to neurodegeneration.
- Altered phosphorylation of cytosolic and cytoskeletal proteins is a key mechanism.
Conclusions:
- Cdk5 dysregulation is a significant factor in ALS neurodegeneration.
- Understanding Cdk5-mediated mechanisms offers new therapeutic avenues for ALS.
- Further research into Cdk5's role is crucial for deciphering ALS pathogenesis.
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