The application and development of CRISPR Cas9

Abstract

This comprehensive review paper thoroughly explores the developmental background, basic principles, application examples, and the current challenges and ethical issues associated with CRISPR-Cas9 technology, and provides an in-depth forecast and outlook on its future directions. Originating from a natural immune mechanism in bacteria, CRISPR-Cas9 technology can precisely identify and cut targeted DNA sequences to achieve gene editing. Characterized by its ease of operation, low cost, and high efficiency, it has been widely applied in biological research, medical treatment, agricultural improvement, and other areas, bringing an unprecedented ability to transform life. This paper extensively introduces various application examples of CRISPR-Cas9 technology, including but not limited to the study of gene functions, treatment of genetic diseases, development of antiviral therapies, and enhancement of crop traits. These applications showcase the enormous potential of CRISPR-Cas9 technology in driving scientific advancement and solving practical problems. However, with the widespread application of the technology, a series of challenges and ethical concerns have arisen. The paper delves into issues such as potential off-target effects of gene editing, ecological risks associated with gene drives, and the ethical boundaries of human embryonic gene editing. The paper anticipates the future development of CRISPR-Cas9, suggesting that with a deeper understanding and continuous refinement of the technology, it may play an even greater role in precision medicine, biopharmaceuticals, bioenergy, and other fields [1].