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Zebrafish as an in vivo high-throughput model for genotoxicity
Sridhara Chakravarthy1, Sathish Sadagopan, Ayyappan Nair
1Discovery Biology, Anthem Biosciences Private Limited , Bangalore, India .
Zebrafish
|January 17, 2014
Summary
Zebrafish (Danio rerio) offer a sensitive, high-throughput alternative for biosafety testing, evaluating compound toxicity and DNA damage. This review highlights their utility in genotoxicity assays, advancing preclinical safety assessments.
Area of Science:
- Pharmacology and Toxicology
- Genetics and Molecular Biology
- Comparative Physiology
Background:
- Current biosafety testing for pharmaceuticals relies on in vitro and mammalian models, which have limitations in potency, translatability, cost, and time.
- Zebrafish (Danio rerio) present a compelling alternative due to their genetic and physiological similarities to humans, rapid development, and high-throughput screening capabilities.
- Existing research demonstrates zebrafish utility in various toxicity assessments, including developmental, cardio-, nephro-, and hepatotoxicity.
Purpose of the Study:
- To review the application of zebrafish as a sensitive, quantitative, and non-invasive whole-animal model for biosafety and toxicity screening.
- To provide a comprehensive introduction to the emerging field of genotoxicity assays using zebrafish for detecting DNA damage.
- To discuss current methodologies and potential future approaches for genotoxicity studies in zebrafish.
Main Methods:
- Review of existing literature on zebrafish models for toxicity and genotoxicity assessment.
- Discussion of the advantages of zebrafish over traditional in vitro and mammalian preclinical models.
- Analysis of the current state and future directions of genotoxicity assays in zebrafish.
Main Results:
- Zebrafish serve as a powerful, sensitive, quantitative, non-invasive, and high-throughput whole-animal assay for various toxicity screenings.
- The review establishes zebrafish as a promising model for genotoxicity studies, capable of detecting DNA damage induced by compounds.
- Current genotoxic studies in zebrafish are nascent but show significant potential for advancing compound safety evaluations.
Conclusions:
- Zebrafish offer a valuable and efficient model for comprehensive biosafety and toxicity evaluations of chemical compounds.
- The utility of zebrafish in genotoxicity assays represents a significant advancement in preclinical safety testing, particularly for DNA damage assessment.
- Further development of zebrafish-based genotoxicity assays can overcome current limitations and enhance the reliability of compound safety screening.
