Expression data from porcine embryonic stem cells. Sus scrofa

We have been able to derive EpiSC-like pESC lines from in vivo produced porcine blastocysts. Our cell lines showed AP activity, expressions of the genes Oct4, Sox2, Nanog, Rex1, TDGF1, bFGF, FGFR1, FGFR2, Nodal and Activin-A involved in pluripotency and signaling pathways and in vitro differentiation potential, displaying similarities to epiblast stem cells or hES cells. Overall design: Porcine blastocysts were cultured on mitotically inactivated mouse embryonic fibroblasts (MEFs) in pESC medium. Following 5-7 days of culture, we observed EpiSC-like primary colonies derived from day 7 in vivo-produced. These EpiSC-like pESC colonies were mechanically dissociated into several clumps using pulled glass pipettes 10-15 days after seeding. Dissociated clumps were then re-seeded on fresh MEFs, and subsequent EpiSC-like pESC lines were routinely passaged via the pulled glass pipette method every 5-7 days. Our cell lines maintained stemness and a stable morphology for more than 56 passages. The main purpose of the present study was to investigate gloval gene expression from porcine embryonic stem cells.