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Open AccessCommunication
Int. J. Mol. Sci. 2016, 17(12), 2031; doi:10.3390/ijms17122031

Somatic Cell Nuclear Transfer Followed by CRIPSR/Cas9 Microinjection Results in Highly Efficient Genome Editing in Cloned Pigs

1
Department of Animal and Avian Sciences, University of Maryland, College Park, MD 20742, USA
2
Animal Bioscience and Biotechnology Laboratory, USDA-ARS, Beltsville, MD 20705, USA
3
Renovate Biosciences Inc., Reisterstown, MD 21136, USA
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Nicholas Delihas
Received: 6 October 2016 / Revised: 16 November 2016 / Accepted: 23 November 2016 / Published: 3 December 2016
(This article belongs to the Section Biochemistry, Molecular and Cellular Biology)
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Abstract

The domestic pig is an ideal “dual purpose” animal model for agricultural and biomedical research. With the availability of genome editing tools such as clustered regularly interspaced short palindromic repeat (CRISPR) and associated nuclease Cas9 (CRISPR/Cas9), it is now possible to perform site-specific alterations with relative ease, and will likely help realize the potential of this valuable model. In this article, we investigated for the first time a combination of somatic cell nuclear transfer (SCNT) and direct injection of CRISPR/Cas ribonucleoprotein complex targeting GRB10 into the reconstituted oocytes to generate GRB10 ablated Ossabaw fetuses. This strategy resulted in highly efficient (100%) generation of biallelic modifications in cloned fetuses. By combining SCNT with CRISPR/Cas9 microinjection, genome edited animals can now be produced without the need to manage a founder herd, while simultaneously eliminating the need for laborious in vitro culture and screening. Our approach utilizes standard cloning techniques while simultaneously performing genome editing in the cloned zygotes of a large animal model for agriculture and biomedical applications. View Full-Text
Keywords: CRISPR/Cas; SCNT; pig; knockout; microinjection CRISPR/Cas; SCNT; pig; knockout; microinjection
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Sheets, T.P.; Park, C.-H.; Park, K.-E.; Powell, A.; Donovan, D.M.; Telugu, B.P. Somatic Cell Nuclear Transfer Followed by CRIPSR/Cas9 Microinjection Results in Highly Efficient Genome Editing in Cloned Pigs. Int. J. Mol. Sci. 2016, 17, 2031.

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