Related Experiment Video
Updated: Nov 2, 2025
Experimental Protocol for Examining Behavioral Response Profiles in Larval Fish: Application to the Neuro-stimulant Caffeine
Published on: July 24, 2018
Exploring the alternative: Fish, flies and worms as preclinical models for ALS
Elke Braems1, Paraskevi Tziortzouda1, Ludo Van Den Bosch1
1KU Leuven - University of Leuven, Department of Neurosciences, Experimental Neurology, and Leuven Brain Institute (LBI), Leuven, Belgium; VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium.
Amyotrophic lateral sclerosis (ALS) research benefits from small animal models like C. elegans, Drosophila, and zebrafish. These models offer new insights into ALS mechanisms and potential therapeutic targets, complementing traditional rodent studies.
Area of Science:
- Neuroscience
- Genetics
- Pharmacology
Background:
- Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease causing motor neuron loss and respiratory failure.
- Current therapeutic strategies, often developed in rodent models, have shown limited success in human clinical trials.
- There is a critical need for alternative preclinical models to improve the identification of effective ALS treatments.
Purpose of the Study:
- To review the application of small animal models in ALS research.
- To highlight recent preclinical discoveries and insights gained from these models.
- To assess the role of small animal models in advancing ALS therapeutic development.
Main Methods:
- Review of studies utilizing Caenorhabditis elegans, Drosophila melanogaster, and Danio rerio to model ALS.
- Analysis of fast genetic approaches and high-throughput screening platforms in these organisms.
- Discussion of preclinical findings related to ALS pathomechanisms, disease modifiers, and therapeutic targets.
Main Results:
- Small animal models have provided valuable insights into ALS pathomechanisms and identified potential therapeutic targets.
- Studies in C. elegans, Drosophila, and zebrafish have advanced the understanding of common ALS-associated genes.
- These models facilitate the discovery of disease modifiers and aid in the preclinical evaluation of drug candidates.
Conclusions:
- Small animal models are crucial for complementing rodent studies in ALS research.
- They enhance the efficiency of identifying promising therapeutic strategies for ALS.
- While not replacing rodent models, small animals represent a significant asset in preclinical ALS research.
