Παρασκευή 25 Νοεμβρίου 2016

Exploring the potential of genome editing CRISPR-Cas9 technology

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Publication date: 30 January 2017
Source:Gene, Volume 599
Author(s): Vijai Singh, Darren Braddick, Pawan Kumar Dhar
CRISPR-Cas9 is an RNA-mediated adaptive immune system that protects bacteria and archaea from viruses or plasmids. Herein we discuss the recent development of CRISPR-Cas9 into a key technology for genome editing, targeting, and regulation in a wide range of organisms and cell types. It requires a custom designed single guide-RNA (sgRNA), a Cas9 endonuclease, and PAM sequences in the target region. The sgRNA-Cas9 complex binds to its target and creates a double-strand break (DSB) that can be repaired by non-homologous end joining (NHEJ) or by the homology-directed repair (HDR) pathway, modifying or permanently replacing the genomic target sequence. Additionally, we highlight recent advances in the repurposing of CRISPR-Cas9 for repression, activation, and loci imaging. In this review, we underline the current progress and the future potential of the CRISPR-Cas9 system towards biomedical, therapeutic, industrial, and biotechnological applications.



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