American Journal of Drug Delivery and Therapeutics Open Access

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Commentary - (2023) Volume 10, Issue 2

Revolutionizing Genetic Engineering and Medicine
Kenneth Williams*
Department of Pharmaceutical, Tohoku University, Japan
*Correspondence: Kenneth Williams, Department of Pharmaceutical, Tohoku University, Japan, Email:

Received: 31-May-2023, Manuscript No. ipadt-23-17115; Editor assigned: 02-Jun-2023, Pre QC No. ipadt-23-17115 (PQ); Reviewed: 16-Jun-2023, QC No. ipadt-23-17115; Revised: 21-Jun-2023, Manuscript No. ipadt-23-17115 (R); Published: 28-Jun-2023, DOI: 10.35841/2349-7211-10.014


CRISPR/Cas9 is a groundbreaking gene-editing technology that has revolutionized the field of genetic engineering and medicine. Developed from a natural defense mechanism found in bacteria, the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) system and its associated Cas9 enzyme have become the go-to tools for precise and efficient manipulation of DNA sequences. The potential applications of CRISPR/Cas9 are vast, ranging from correcting genetic mutations responsible for hereditary diseases to enhancing crop yields and creating disease-resistant livestock. At the heart of the CRISPR/Cas9 system lies the Cas9 protein, which acts as molecular scissors, capable of cutting DNA at specific locations guided by short RNA molecules known as guide RNAs (gRNAs). These gRNAs are designed to complement the target DNA sequence, enabling Cas9 to bind and introduce a double-stranded break at the desired site. Once the DNA is cleaved, the cell’s inherent repair machinery comes into play, attempting to fix the break through two primary mechanisms: non-homologous end-joining (NHEJ) and homology-directed repair (HDR). NHEJ often leads to small insertions or deletions, causing gene disruption, while HDR allows for precise DNA sequence changes when provided with a repair template. The simplicity and adaptability of CRISPR/ Cas9 have made it a game-changer in genetic research. It has significantly expedited the process of generating genetically modified organisms (GMOs), enabling researchers to explore gene functions and understand the molecular basis of diseases with unparalleled precision and ease. Additionally, CRISPR/ Cas9’s potential extends to gene therapy, where it offers hope for treating genetic disorders that have long remained untreatable. By correcting faulty genes within patient cells, CRISPR/ Cas9 holds the promise of curing or ameliorating conditions such as cystic fibrosis, sickle cell anemia, and muscular dystrophy. Despite the incredible potential of CRISPR/Cas9, ethical concerns surrounding its applications have emerged. The fear of “designer babies,” where genetic enhancements could be introduced, has sparked widespread debate. The technology’s accessibility and simplicity raise the concern of potential misuse, emphasizing the need for rigorous regulations and ethical guidelines to govern its usage. Striking a balance between scientific advancement and responsible deployment is vital to ensure CRISPR/Cas9 is used for the betterment of humanity without compromising ethical standards. In addition to its profound impact on medicine and genetic research, CRISPR/Cas9 is making significant contributions to agriculture and food security. With the world’s population steadily rising, there is an urgent need to develop more resilient and productive crops. CRISPR/ Cas9 provides a faster and more precise way to modify crop genomes, enhancing traits such as disease resistance, drought tolerance, and nutritional content. By engineering crops to better withstand environmental stresses and pests, this technology has the potential to transform global agriculture and contribute to sustainable food production. Despite the many advantages of CRISPR/Cas9, challenges remain. Off-target effects, where Cas9 cuts unintended DNA sequences, can occur and must be minimized to ensure safety and accuracy. Researchers are continually working on improving the specificity of the system to reduce the risk of unintended genetic alterations. Additionally, the delivery of CRISPR/Cas9 components to target cells in vivo remains a hurdle in therapeutic applications. Finding safe and efficient delivery methods is crucial for successful gene therapy. In conclusion, CRISPR/Cas9 stands as one of the most remarkable and promising technologies in modern science. Its ability to precisely edit DNA has opened doors to a myriad of possibilities in various fields, from medicine and biotechnology to agriculture and beyond.



Conflict Of Interest

The author’s declared that they have no conflict of interest.

Citation: Williams K (2023) Revolutionizing Genetic Engineering and Medicine. Am J Drug Deliv Ther. 10:014.

Copyright: © 2023 Williams K. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.