Combinatorial gene editing in mammalian cells using ssODNs and TALENs

被引:20
作者
Strouse, Bryan [1 ]
Bialk, Pawel [1 ]
Niamat, Rohina A. [1 ]
Rivera-Torres, Natalia [1 ]
Kmiec, Eric B. [1 ]
机构
[1] Delaware State Univ, Dept Chem, Dover, DE 19901 USA
来源
SCIENTIFIC REPORTS | 2014年 / 4卷
关键词
DNA OLIGONUCLEOTIDES; SEQUENCE CORRECTION; CYCLE PROGRESSION; TARGETED REPAIR; REPLICATION; EFFICIENCY; DAMAGE;
D O I
10.1038/srep03791
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The regulation of gene editing is being elucidated in mammalian cells and its potential as well as its limitations are becoming evident. ssODNs carry out gene editing by annealing to their complimentary sequence at the target site and acting as primers for replication fork extension. To effect a genetic change, a large amount of ssODN molecules must be introduced into cells and as such induce a Reduced Proliferation Phenotype (RPP), a phenomenon in which corrected cells do not proliferate. To overcome this limitation, we have used TAL-Effector Nucleases (TALENs) to increase the frequency, while reducing the amount of ssODN required to direct gene correction. This strategy resolves the problem and averts the serious effects of RPP. The efficiency of gene editing can be increased significantly if cells are targeted while they progress through S phase. Our studies define new reaction parameters that will help guide experimental strategies of gene editing.
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页数:9
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