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CRISPR/Cas9 in cancer: An attempt to the present trends and future prospects

Cancer is the second leading cause of death globally. Series of sequential, repeated genetic changes and epigenetic modifications are leading to the formation of tumors. These tumors subsequently causing the infected cells to invade and transform their surrounding cells by metastasis are some hallmarks in cancer. Although tremendous efforts have been extended for structurally characterizing the numerous genomic mutations undergoing in cancer cells, there is a lack of information regarding the functions of many mutated genes. Clustered Regularly Interspaced Short Palindromic repeats/CRISPR‐associated nuclease 9 (CRISPR/Cas9) has become a robust method for building changes in genome of many organisms. Recent reports have suggested that modification of CRISPR/Cas9 can provide plot form to probe the mechanisms in tumorigenesis and in cancer therapies. This review focuses on the historical perspectives of CRISPR/Cas9. The study highlights the applications and also role in cancer cell genome editing, which is helpful to understand the dynamics. Intense research in progress on mechanism of action of CRISPR/Cas9 has been reviewed and critically discussed. Further, relevant literature on animal models focusing on various approaches has been highlighted to emphasize the therapeutics of CRISPR/Cas9 with current trends and future challenges.