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Updated: Jun 25, 2025
Use of Freeze-thawed Embryos for High-efficiency Production of Genetically Modified Mice
Published on: April 2, 2020
Novel traceable CRISPR-Cas9 engineered human embryonic stem cell line (E1C3 + hSEAP + 2xKO + pCD47), has potential to
Henriette Reventlow S Frederiksen1, Søren Skov1, Pernille Tveden-Nyborg1
1University of Copenhagen, Department of Veterinary and Animal Sciences, 1870 Frederiksberg, Denmark.
Abstract:
Here we present the generation of a human embryonic stem cell line with the potential to escape immune rejection upon transplantation to an alternate species, in this case sus scrofa. For in vivo detection the cells were modified by CRISPR-Cas9 to express human secreted alkaline phosphatase. To avoid immune recognition and subsequent rejection by host, genes encoding hB2M and hCIITA were knocked out and the porcine gene for CD47 was introduced. Upon editing and subsequent culture, cells maintained molecular and phenotypic pluripotent charactaristics and a normal karyotype supporting viability and functionality of the engineered cell line.
