Delivery approaches for CRISPR/Cas9 therapeutics in vivo: advances and challenges

Expert Opinion on Drug Delivery
D C LutherVincent M Rotello

Abstract

Therapeutic gene editing is becoming a viable biomedical tool with the emergence of the CRISPR/Cas9 system. CRISPR-based technologies have promise as a therapeutic platform for many human genetic diseases previously considered untreatable, providing a flexible approach to high-fidelity gene editing. For many diseases, such as sickle-cell disease and beta thalassemia, curative therapy may already be on the horizon, with CRISPR-based clinical trials slated for the next few years. Translation of CRISPR-based therapy to in vivo application however, is no small feat, and major hurdles remain for efficacious use of the CRISPR/Cas9 system in clinical contexts. In this topical review, we highlight recent advances to in vivo delivery of the CRISPR/Cas9 system using various packaging formats, including viral, mRNA, plasmid, and protein-based approaches. We also discuss some of the barriers which have yet to be overcome for successful translation of this technology. This review focuses on the challenges to efficacy for various delivery formats, with specific emphasis on overcoming these challenges through the development of carrier vehicles for transient approaches to CRISPR/Cas9 delivery in vivo.

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Citations

Jul 10, 2019·Expert Opinion on Drug Delivery·Ah Young LeeSanghwa Kim
Nov 2, 2019·Nanoscale·Piyush K JainSangeeta N Bhatia
Feb 3, 2020·Cellular and Molecular Life Sciences : CMLS·Reza MohammadinejadIman Azimi
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Oct 9, 2020·International Journal of Molecular Sciences·Dmitry KostyushevVladimir Chulanov
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Oct 5, 2021·Technology in Cancer Research & Treatment·Wei LvWei Wei

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