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Optogenetic Phase Transition of TDP-43 in Spinal Motor Neurons of Zebrafish Larvae
Published on: February 25, 2022
Circular RNAs in amyotrophic lateral sclerosis
Reza Ataei1, Javad Amini2, Nima Sanadgol3
1Department of Biology, University of Western Ontario, Canada.
Neurobiology of Disease
|August 14, 2026
Summary
Circular RNAs (circRNAs) are newly identified players in Amyotrophic Lateral Sclerosis (ALS). This study reveals circRNAs regulate key ALS genes and interact with proteins, offering new insights into this motor neuron disease.
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Amyotrophic lateral sclerosis (ALS) is a fatal motor neuron disease with unknown genetic causes in most cases.
- Non-coding RNAs, especially circular RNAs (circRNAs), are increasingly recognized for their roles in neurodegenerative diseases.
- Understanding circRNA involvement in ALS is crucial for identifying novel therapeutic targets.
Purpose of the Study:
- To investigate the role of circRNAs in Amyotrophic Lateral Sclerosis (ALS) and related motor neuron diseases (MNDs).
- To identify specific circRNAs associated with ALS pathogenesis.
- To explore the regulatory mechanisms of ALS-associated circRNAs.
Main Methods:
- Systematic literature review to identify ALS-associated circRNAs.
- In silico analysis of 15 selected circRNA candidates.
- Protein-RNA interaction and molecular docking analyses.
- RNA sequencing (RNA-seq) analysis of CNS tissues from ALS patients.
Main Results:
- Several circRNAs were found to regulate critical ALS-related genes involved in unfolded protein response, oxidative stress, cell cycle, and apoptosis.
- ALS-related circRNAs can interact with and potentially regulate 20 RNA-binding proteins.
- ALS-associated FUS variants were shown to alter binding affinity to circRNAs.
- Significant expression changes in host genes and hub proteins were observed in ALS patient tissues.
Conclusions:
- Circular RNAs are implicated as key contributors to the pathogenesis of Amyotrophic Lateral Sclerosis.
- circRNAs represent potential diagnostic biomarkers and therapeutic targets for ALS.
- Further research into circRNA-ALS interactions is warranted to elucidate disease mechanisms.
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