Non-integrating gamma-retroviral vectors as a versatile tool for transient zinc-finger nuclease delivery.

Abstract:

:Designer nucleases, like zinc-finger nucleases (ZFNs), represent valuable tools for targeted genome editing. Here, we took advantage of the gamma-retroviral life cycle and produced vectors to transfer ZFNs in the form of protein, mRNA and episomal DNA. Transfer efficacy and ZFN activity were assessed in quantitative proof-of-concept experiments in a human cell line and in mouse embryonic stem cells. We demonstrate that retrovirus-mediated protein transfer (RPT), retrovirus-mediated mRNA transfer (RMT), and retrovirus-mediated episome transfer (RET) represent powerful methodologies for transient protein delivery or protein expression. Furthermore, we describe complementary strategies to augment ZFN activity after gamma-retroviral transduction, including serial transduction, proteasome inhibition, and hypothermia. Depending on vector dose and target cell type, gene disruption frequencies of up to 15% were achieved with RPT and RMT, and >50% gene knockout after RET. In summary, non-integrating gamma-retroviral vectors represent a versatile tool to transiently deliver ZFNs to human and mouse cells.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Bobis-Wozowicz S,Galla M,Alzubi J,Kuehle J,Baum C,Schambach A,Cathomen T

doi

10.1038/srep04656

subject

Has Abstract

pub_date

2014-04-11 00:00:00

pages

4656

issn

2045-2322

pii

srep04656

journal_volume

4

pub_type

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