[Zebrafish as a model organism for biomedical studies]

Area of Science:

• * Developmental Biology
• * Pharmacology
• * Toxicology

Context:

• * Zebrafish (Danio rerio) are a widely adopted model organism in biological and medical research.
• * Their utility spans disease modeling, drug discovery, and toxicity assessments.
• * Zebrafish embryos are permeable to small molecules and transparent, facilitating developmental observation.

Purpose:

• * To review the achievements of zebrafish-based assays in modeling human diseases.
• * To highlight the application of zebrafish in drug discovery and development, particularly in early-stage research.
• * To showcase zebrafish as a model for predicting human toxicity and teratogenic effects.

Summary:

• * Zebrafish assays effectively model human diseases due to conserved genome organization and signaling pathways.
• * They are valuable for early drug discovery, demonstrating efficacy and toxicity before employing expensive mammalian models.
• * Zebrafish embryos are used for acute toxicity testing (LC50 estimation) and screening for developmental disorders, indicating teratogenic potential.
• * Examples include toxicity testing of novel drugs using phospholipid nanoparticles.

Impact:

• * Zebrafish provide a cost-effective and efficient alternative to mammalian models in preclinical research.
• * This model organism aids in identifying potential drug toxicity and teratogenic effects early in the development pipeline.
• * Facilitates the advancement of drug discovery and the understanding of human diseases through comparative biology.