Genome Editing in Zebrafish Using CRISPR-Cas9: Applications for Developmental Toxicology

Area of Science:

• Developmental biology
• Genetics
• Toxicology

Background:

• Environment-gene interactions significantly impact embryonic development.
• Genome editing tools allow precise investigation of gene function and environmental responses.
• Zebrafish serve as a valuable model organism for studying development and toxicology.

Purpose of the Study:

• To provide a simplified protocol for genome editing in zebrafish using CRISPR-Cas9 ribonucleoproteins.
• To enable the study of specific gene roles in modulating responses to environmental challenges.
• To facilitate the identification of mechanisms underlying toxicant-induced developmental modulation.

Main Methods:

• Utilizing CRISPR-Cas9 ribonucleoproteins for efficient genome editing in zebrafish embryos.
• Implementing a simplified protocol for genetic manipulation.
• Coupling genome editing with chemical screening approaches.

Main Results:

• A simplified CRISPR-Cas9 protocol for zebrafish genome editing was established.
• The protocol facilitates the investigation of gene function in development.
• This approach allows for the study of environmental influences on gene expression and development.

Conclusions:

• CRISPR-Cas9 genome editing in zebrafish offers a powerful approach to study environment-gene interactions.
• The developed protocol simplifies genetic manipulation for developmental and toxicological studies.
• This methodology aids in understanding the mechanisms of toxicants affecting embryonic development.