CRISPR Technology and Its Emerging Applications

The discovery and iteration of clustered regularly interspaced short palindromic repeats (CRISPR) systems have revolutionized genome editing due to their remarkable efficiency and easy programmability, enabling precise manipulation of genomic elements. Owing to these unique advantages, CRISPR technology has the transformative potential to elucidate biological mechanisms and develop clinical treatments. This review provides a comprehensive overview of the development and applications of CRISPR technology. After describing the three primary CRISPR-Cas systems - CRISPR-associated protein 9 (Cas9) and Cas12a targeting DNA, and Cas13 targeting RNA - which serve as the cornerstone for technological advancements, we describe a series of novel CRISPR-Cas systems that offer new avenues for research, and then explore the applications of CRISPR technology in large-scale genetic screening, lineage tracing, genetic diagnosis, and gene therapy. As this technology evolves, it holds significant promise for studying gene functions and treating human diseases in the near future.