Identification and re-addressing of a transcriptionally permissive locus in the porcine genome
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Title |
Identification and re-addressing of a transcriptionally permissive locus in the porcine genome
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Subject |
Large animal model Active transgenesis Targeted integration Somatic cell nuclear transfer Livestock
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Description |
Large animal model Active transgenesis Targeted integration Somatic cell nuclear transfer Livestock Recently, we established the Sleeping Beauty transposon system for germ line competent transgenesis in the pig. Here, we extend this approach to re-target a transposon-tagged locus for a sitespecific gene knock-in, and generated a syngeneic cohort of piglets carrying either the original transposon or the re-targeted event. A Cre-loxP-mediated cassette exchange of the tagging transposon with a different reporter gene was performed, followed by flow cytometric sorting and somatic cell nuclear transfer of recombined cells. In parallel, the original cells were employed in somatic cell nuclear transfer to generate clone siblings, thereby resulting in a clone cohort of piglets carrying different reporter transposons at an identical chromosomal location. Importantly, this strategy supersedes the need for an antibiotic selection marker. This approach expands the arsenal of genome engineering technologies in domestic animals, and will facilitate the development of large animal models for human diseases. Potentially, the syngeneic cohort of pigs will be instrumental for vital tracking of transplanted cells in preclinical assessments of novel cell therapies. Not Available |
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Date |
2019-12-05T11:01:47Z
2019-12-05T11:01:47Z 2015-10-23 |
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Article
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Not Available http://krishi.icar.gov.in/jspui/handle/123456789/28165 |
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Language |
English
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