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2016 ; 590
(19
): 3416-3424
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Efficient generation of selection-gene-free rat knockout models by homologous
recombination in ES cells
#MMPMID27597178
Lan H
; Li S
; Guo Z
; Men H
; Wu Y
; Li N
; Bryda EC
; Capecchi MR
; Wu S
FEBS Lett
2016[Oct]; 590
(19
): 3416-3424
PMID27597178
show ga
Embryonic stem cell (ES cell)-based rat knockout technology, although
successfully developed in 2010, has seen very limited usage to date due to low
targeting efficiency and a lack of optimized procedures. In this study, we
performed gene targeting in ES cells from the Sprague-Dawley (SD) and the Fischer
344 (F344) rat strains using an optimized procedure and the self-excising
neomycin (neo)-positive selection cassette ACN to successfully generate Leptin
and Trp53 knockout rats that did not carry the selection gene. These results
demonstrate that our simplified targeting strategy using ACN provides an
efficient approach to knock out many other rat genes.