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Small Molecule Screening and Toxicity Testing in Early-stage Zebrafish Larvae
Published on: March 7, 2025
The Use of the Zebrafish Model to Aid in Drug Discovery and Target Validation
Prusothman Yoganantharjah1, Yann Gibert1
1Metabolic Research Unit, Metabolic Genetic Diseases Laboratory, Deakin University School of Medicine, 75 Pigdons Road, Geelong VIC 3216. Australia.
Abstract:
The zebrafish is fast becoming a leading and prominent model organism used by researchers for developmental biology, and research in modeling human diseases in zebrafish is being undertaken at a fast pace. Many therapeutic areas, including oncology and cardiovascular diseases to name a few all have zebrafish models based on known disease mechanisms that are translatable to modes of action in humans. Many novel assays have been and are continuing to be developed to study human disease in zebrafish. Prominent methods to identify novel drug targets within the organism include, chemical mutagenesis, insertional mutagenesis and high throughput small molecule screens. Methods to validate potential drug targets include reverse and forward genetics, transgenesis and gene knockout. This review summarizes the important contributions made using the zebrafish model in recent years to aid in drug discovery and target validations in the highly important medical field of cancer medicine, cardiovascular disease and the emerging role of the zebrafish model as a platform for toxicity screening.
Insights
Zebrafish models accelerate drug discovery for cancer and cardiovascular diseases. This versatile organism aids in identifying drug targets and validating therapies, advancing human medicine.
Area of Science:
- Developmental biology
- Translational medicine
- Drug discovery
Background:
- The zebrafish is a prominent model organism in developmental biology research.
- Zebrafish models are increasingly used to study human diseases like cancer and cardiovascular conditions.
- Research is rapidly advancing in modeling human diseases and developing novel assays in zebrafish.
Purpose of the Study:
- To review the contributions of zebrafish models in drug discovery and target validation.
- To highlight the role of zebrafish in cancer medicine and cardiovascular disease research.
- To discuss the emerging use of zebrafish in toxicity screening.
Main Methods:
- Chemical mutagenesis
- Insertional mutagenesis
- High-throughput small molecule screens
- Reverse and forward genetics
- Transgenesis
- Gene knockout
Main Results:
- Zebrafish models are effective for studying complex diseases.
- Various methods are established for drug target identification and validation in zebrafish.
- Zebrafish platforms are valuable for toxicity screening.
Conclusions:
- Zebrafish are crucial for advancing drug discovery and target validation in human medicine.
- The zebrafish model offers significant potential for developing new therapies and assessing drug safety.
- Continued research with zebrafish promises further breakthroughs in oncology, cardiovascular disease, and toxicology.

