2016
DOI: 10.1016/j.jgg.2016.02.004
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Delivery of Cas9 Protein into Mouse Zygotes through a Series of Electroporation Dramatically Increases the Efficiency of Model Creation

Abstract: Previously we established Zygote Electroporation of Nucleases (ZEN) technology as an efficient and high-throughput way to generate genetically modified mouse models. However, there were significant variations of the targeting efficiency among different genomic loci using our previously published protocol. In this study, we improved the ZEN technology by delivering Cas9 protein into mouse zygotes through a series of electroporation. Using this approach, we were able to introduce precise nucleotide substitutions… Show more

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Cited by 85 publications
(89 citation statements)
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References 22 publications
(34 reference statements)
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“…3d). These findings are in agreement with a recent report demonstrating increased efficiency with protein and higher pulse numbers (Wang et al 2016). The only gene that was refractory to deletions using electroporation was Pcnx2 although there were founders carrying indels.…”
Section: Resultssupporting
confidence: 94%
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“…3d). These findings are in agreement with a recent report demonstrating increased efficiency with protein and higher pulse numbers (Wang et al 2016). The only gene that was refractory to deletions using electroporation was Pcnx2 although there were founders carrying indels.…”
Section: Resultssupporting
confidence: 94%
“…3c; Table 1) (Qin et al 2015; Wang et al 2016). For electroporation, two different protocols were also tested that varied the number of times the program was run such that 1X delivered 2 pulses (Qin et al 2015) and 6X delivered 12 pulses (Wang et al 2016). Consistently, increasing the pulse number increased the level of mutations with Cas9 protein showing higher levels of activity when compared to mRNA for 2/3 target genes (Fig.…”
Section: Resultsmentioning
confidence: 99%
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“…Conversely, in zygote electroporation studies, mosaicism is due to the fact that sometimes the single-cell zygote divides before the editing occurs. Hence, replacing Cas9 mRNA and sgRNA with Cas9-sgRNA ribonucleoprotein (RNP) complexes that can immediately act on their targets increases the fraction of non-mosaic founders 85,86 . Overall, CRISPR-Cas promises to revolutionize mouse genetics by reducing the time necessary to generate targeted models from years to months or weeks.…”
Section: Crispr-cas As a Tool For Drug Discoverymentioning
confidence: 99%
“…Bunlar arasında elektroporasyon, mikroinjeksiyon ve hidrodinamik injeksiyon bulunmaktadır. 51,60,61 Genel olarak viral ve viral olmayan vektörler karşılaştırılacak olursa Tablo 2'deki gibi bir durum ortaya çıkmaktadır. 44,59,62,63 Buna göre viral vektör-ler yüksek verimle CRISPR-Cas9 sisteminin taşın-masında kullanılma potansiyeline sahiptir.…”
Section: Crispr-cas9 Si̇stemi̇ni̇n Transfeksi̇yon Ve Taşinma Strateji̇leri̇unclassified