Delivery of Tissue-Targeted Scalpels: Opportunities and Challenges for In Vivo CRISPR/Cas-Based Genome Editing.

ACS Nano
Tuo WeiDaniel J Siegwart

Abstract

CRISPR/Cas9-based genome editing has quickly emerged as a powerful breakthrough technology for use in diverse settings across biomedical research and therapeutic development. Recent efforts toward understanding gene modification methods in vitro have led to substantial improvements in ex vivo genome editing efficiency. Because disease targets for genomic correction are often localized in specific organs, realization of the full potential of genomic medicines will require delivery of CRISPR/Cas9 systems targeting specific tissues and cells directly in vivo. In this Perspective, we focus on progress toward in vivo delivery of CRISPR/Cas components. Viral and nonviral delivery systems are both promising for gene editing in diverse tissues via local injection and systemic injection. We describe the various viral vectors and synthetic nonviral materials used for in vivo gene editing and applications to research and therapeutic models, and summarize opportunities and progress to date for both methods. We also discuss challenges for viral delivery, including overcoming limited packaging capacity, immunogenicity associated with multiple dosing, and the potential for off-target effects, and nonviral delivery, including efforts to increa...Continue Reading

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Citations

Jan 18, 2021·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·Muhammad Usman AshrafSafee Ullah Chaudhary
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