Related Experiment Video
Updated: Dec 21, 2025
10:49
Measuring RAN Peptide Toxicity in C. elegans
Published on: April 30, 2020
7.0K
Measuring RAN Peptide Toxicity in C. elegans.
Paige Rudich1, Carley Snoznik2, Noah Puleo2
1Graduate Program in Cell Biology and Molecular Physiology, University of Pittsburgh.
Journal of Visualized Experiments : Jove
|May 19, 2020
Summary
Repeat-associated non-AUG-dependent (RAN) translation produces toxic peptides in C. elegans models of neurodegenerative diseases. New assays measure RAN peptide toxicity on growth, motility, and neuron morphology for disease research.
Area of Science:
- Neuroscience
- Genetics
- Molecular Biology
Background:
- C. elegans is a model organism for neurodegenerative diseases like ALS and Huntington's.
- Repeat expansion mutations cause these diseases.
- Repeat-associated non-AUG-dependent (RAN) translation produces toxic peptides from repeat expansion RNA.
Purpose of the Study:
- To present strategies for measuring RAN peptide toxicity in C. elegans.
- To enable large-scale screens for disease mechanisms and therapies.
Main Methods:
- Assays for RAN peptide toxicity on C. elegans growth and motility.
- Assays for age-dependent effects of RAN peptides on motility.
- Neurotoxicity assays evaluating RAN peptide effects on neuron morphology.
Main Results:
- Established methods to assess RAN peptide toxicity in C. elegans.
- Provided tools for broad assessment of RAN peptide toxicity.
Conclusions:
- Developed assays to measure RAN peptide toxicity in C. elegans.
- These assays can facilitate genetic or small molecule screens for neurodegenerative disease research and therapeutic development.
