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Zhao, Lixia; Gao, Xuefei; Zheng, Yuxuan; Wang, Zixin; Zhao, Gaoping; Ren, Jie; Zhang, Jia; Wu, Jian; Wu, Baojiang; Chen, Yanglin; Sun, Wei; Li, Yunxia; Su, Jie; Ding, Yulin; Gao, Yuan; Liu, Moning; Bai, Xiaochun; Sun, Liangzhong; Cao, Guifang; Tang, Fuchou; Bao, Siqin; Liu, Pentao; Li, Xihe
Proceedings of the National Academy of Sciences - PNAS, 04/2021, Volume: 118, Issue: 15Journal Article
Embryonic stem cells (ESCs) and induced pluripotent stem cells have the potential to differentiate to all cell types of an adult individual and are useful for studying development and for translational research. However, extrapolation of mouse and human ESC knowledge to deriving stable ESC lines of domestic ungulates and large livestock species has been challenging. In contrast to ESCs that are usually established from the blastocyst, mouse expanded potential stem cells (EPSCs) are derived from four-cell and eight-cell embryos. We have recently used the EPSC approach and established stem cells from porcine and human preimplantation embryos. EPSCs are molecularly similar across species and have broader developmental potential to generate embryonic and extraembryonic cell lineages. We further explore the EPSC technology for mammalian species refractory to the standard ESC approaches and report here the successful establishment of bovine EPSCs (bEPSCs) from preimplantation embryos of both wild-type and somatic cell nuclear transfer. bEPSCs express high levels of pluripotency genes, propagate robustly in feeder-free culture, and are genetically stable in long-term culture. bEPSCs have enriched transcriptomic features of early preimplantation embryos and differentiate in vitro to cells of the three somatic germ layers and, in chimeras, contribute to both the embryonic (fetal) and extraembryonic cell lineages. Importantly, precise gene editing is efficiently achieved in bEPSCs, and genetically modified bEPSCs can be used as donors in somatic cell nuclear transfer. bEPSCs therefore hold the potential to substantially advance biotechnology and agriculture.
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