Innovative Chemical Strategies for Advanced CRISPR Modulation

Area of Science:

• Molecular Biology
• Biochemistry
• Materials Science

Background:

• CRISPR gene editing offers therapeutic potential but faces challenges in precise control and specificity.
• Advanced regulatory strategies are crucial for overcoming limitations in current CRISPR technologies.

Purpose of the Study:

• To review and highlight innovative chemical and material-based strategies for precise CRISPR gene editing regulation.
• To showcase advancements in guide RNA modulation, bioorthogonal chemistry, and materials science for enhanced CRISPR applications.

Main Methods:

• Chemical modulation of guide RNA (gRNA) using masking/demasking strategies and bioorthogonal reactions.
• Utilizing mesoporous metal-organic frameworks (MOFs) for RNA deprotection and activation.
• Engineering RNA structures (G-quadruplex motifs, G-G mismatches) and employing small-molecule ligands.
• Applying host-guest chemistry and conditional diacylation cross-linking for gRNA structure alteration.

Main Results:

• Development of CRISPR-ON/OFF switches through selective chemical masking and demasking of gRNA.
• MOFs enhance CRISPR system efficiency and versatility as catalytic tools.
• Small molecules and engineered RNA structures provide precise control over CRISPR-Cas9 activity.
• Host-guest chemistry and cross-linking offer nuanced, reversible, and safe control over CRISPR systems.

Conclusions:

• Integration of chemistry, materials science, and molecular biology yields advanced CRISPR regulatory solutions.
• Bioorthogonal chemistry, RNA engineering, and advanced materials provide unprecedented accuracy and control in gene editing.
• These innovations advance genetic research and contribute to safer, more effective gene editing strategies for therapeutic applications.