CRISPR/Cas9-Mediated Knockout of Rb1 in Xenopus tropicalis

Area of Science:

• Genetics
• Developmental Biology
• Cancer Research

Background:

• Retinoblastoma treatment lacks molecular targeted therapies.
• A significant barrier is the absence of suitable animal models for target identification and drug testing.

Purpose of the Study:

• To describe methods for generating rb1 mosaic mutant Xenopus tropicalis using CRISPR/Cas9 technology.
• To provide a framework for targeting rb1 or other genes in Xenopus tropicalis.

Main Methods:

• CRISPR/Cas9 technology for generating mosaic mutants.
• Detailed methods for short guide RNA (sgRNA) design, generation, quality control, quantification, and delivery.
• Assessment of genome editing efficiencies.

Main Results:

• Successful generation of rb1 mosaic mutant Xenopus tropicalis.
• Comprehensive methodology for CRISPR/Cas9 gene editing in Xenopus tropicalis.

Conclusions:

• The described methods enable the creation of genetic retinoblastoma models in Xenopus tropicalis.
• This approach facilitates the identification of novel therapeutic targets and drug testing for retinoblastoma.