Project description:Quantitative examination of transcripts expressed in bovine blastocyst derived trophoblasts. These data showcase the fundamental physiology of bovine trophectoderm and indicate hallmarks of the self-renewing undifferentiated state akin to trophoblast stem cells described in other species.
Project description:In the bovine placenta, intimate fetomaternal contacts are confined to multiple discrete structures termed placentomes. In the placentomes, widely ramified fetal chorionic villi interdigitate with corresponding maternal caruncular crypts. The trophoblast covering the chorionic villi is composed of uninucleate trophoblast cells (UTCs) and binucleate trophoblast giant cells (TGCs). TGCs are weakly invasive and capable of migrating toward the caruncular epithelium where they eventually fuse with single epithelial cells to form short-living trinucleate fetomaternal hybrid cells. Thereby, molecules of fetal origin are transported into the maternal compartment. The loss of TGCs due to fetomaternal hybrid cell formation is compensated by differentiation of UTCs into TGCs. We performed a genome-wide gene expression study of virtually pure UTCs and TGCs to to identify genes which are associated with trophoblast cell differentiation
Project description:Here we report that a chemical cocktail (LCDM: hLIF, CHIR99021, DiM and MiH) previously reported for extended potential pluripotent stem cells enables the de novo derivation and long-term culture of bovine trophoblast stem cells (TSCs). Bovine TSCs exhibit transcriptomic and epigenetic features characteristic of trophectoderm cells from bovine embryos and retain developmental potency to differentiate into functional trophoblasts in vitro and in vivo
Project description:Here we report that a chemical cocktail (LCDM: hLIF, CHIR99021, DiM and MiH) previously reported for extended potential pluripotent stem cells enables the de novo derivation and long-term culture of bovine trophoblast stem cells (TSCs). Bovine TSCs exhibit transcriptomic and epigenetic features characteristic of trophectoderm cells from bovine embryos and retain developmental potency to differentiate into functional trophoblasts in vitro and in vivo
Project description:Here we report that a chemical cocktail (LCDM: hLIF, CHIR99021, DiM and MiH) previously reported for extended potential pluripotent stem cells enables the de novo derivation and long-term culture of bovine trophoblast stem cells (TSCs). Bovine TSCs exhibit transcriptomic and epigenetic features characteristic of trophectoderm cells from bovine embryos and retain developmental potency to differentiate into functional trophoblasts in vitro and in vivo
Project description:BeWo trophoblast cells differentiate in response to expsure to cyclic adenosine monophosphate (cAMP) analogs. Differentiation includes syncytialization (fusion) and hormonogenesis. The goal of this study was to globally determine transcripts differentially expressed in BeWo trophoblast cells following a 24-h exposure to 250 uM 8-bromo-cAMP. 3 replicates undifferentiated BeWo trophoblast cells; and 3 replicates BeWo trophoblast cells treated with 250 uM 8-Br-cAMP for 24 h.
Project description:We performed RNA-seq to determine the differential expression genes from undifferentiated trophoblast stem cells (TSCs) and 7-days differentiated trophoblast giant cells (TGCs). We performed RNA-seq to determine the differential expression genes from undifferentiated trophoblast stem cells (TSCs) and 7-days differentiated trophoblast giant cells (TGCs). mTSCs were nurtured in a stem cell medium specifically designed for their growth. The differentiation of mTSCs into TGCs were enabled using a specialized differentiation medium for 7-days. This medium was essentially SCM without the components of FGF4 and heparin.
Project description:In this study, we examine the transcriptome of bovine TSCs under self-renewal that is sustained by inhibiting RhoA-Rock pathway. Using systems biology of spontaneous differentiation, we identify that TGFB1 induces differentiation of bovine TSCs. We analyse the transcriptome of TSCs under TGFB1 induced differentiation. We also analyze pathways of differentiation that are dependent and independent of RhoA-Rock signaling through analysis of the transcriptome of TSCs exposed to both TGFB1 and ROCK inhibition.