CRISPR-Cas-Based Diagnostics in Biomedicine: Principles, Applications, and Future Trajectories

Area of Science:

• Molecular Biology
• Biotechnology
• Genetics

Background:

• CRISPR-Cas systems, initially prokaryotic immune mechanisms, are now key molecular diagnostic tools.
• These systems provide precise nucleic acid targeting for rapid, sensitive, and specific detection.

Purpose of the Study:

• To review the principles and applications of CRISPR-Cas diagnostics.
• To highlight advantages, challenges, and future directions in the field.

Main Methods:

• Review of Cas protein functions (Cas9, Cas12a, Cas13a) and cleavage mechanisms (cis- and trans-).
• Analysis of diverse applications including infectious diseases, cancer biomarkers, and genetic disorders.
• Examination of point-of-care (POC) testing potential.

Main Results:

• CRISPR diagnostics offer speed, high sensitivity, specificity, portability, and cost-effectiveness.
• Applications range from infectious disease surveillance to cancer biomarker detection and genetic screening.
• Key advantages are particularly relevant for resource-limited settings.

Conclusions:

• CRISPR diagnostics show significant promise for various applications, especially in POC settings.
• Current challenges include sensitivity limitations, specificity concerns, and sample preparation complexity.
• Future directions involve AI integration and universal platforms for enhanced clinical translation.