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Establishment of bovine trophoblast stem cells [WGBS]

ABSTRACT: 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

ORGANISM(S): Bos taurus

PROVIDER: GSE220924 | GEO | 2023/07/20

REPOSITORIES: GEO

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Establishment of bovine trophoblast stem cells [RNA-seq]

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

2023-07-20 | GSE220923 | GEO

Establishment of bovine trophoblast stem cells [ATAC-seq]

2023-07-20 | GSE220922 | GEO

Transcriptome of undifferentiated bovine trophoblast cells

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.

2018-11-13 | GSE122418 | GEO

Zika virus impacts extracellular vesicle composition and cellular gene expression in macaque early gestation trophoblasts

Project description:Zika virus (ZIKV) infection at the maternal-placental interface is associated with adverse pregnancy outcomes including fetal demise and pregnancy loss. To determine how infection impacts placental trophoblasts, we utilized rhesus macaque trophoblast stem cells (TSC) that can be differentiated into early gestation syncytiotrophoblasts (ST) and extravillous trophoblasts (EVT). TSCs and STs, but not EVTs, were highly permissive to productive infection with ZIKV strain DAK AR 41524. The impact of ZIKV on the cellular transcriptome showed that infection of TSCs and STs increased expression of immune related genes, including those involved in type I and type III interferon responses. ZIKV exposure altered extracellular vesicle (EV) protein, mRNA, and miRNA cargo, regardless of productive infection. These findings suggest that early gestation macaque TSCs and STs are permissive to ZIKV infection, and that EV analysis may provide a foundation for identifying non-invasive biomarkers of placental infection in a highly translational model.

2022-05-20 | PXD033289 | Pride

Mouse trophoblast cells have attenuated responses to TNFα and IFNγ that allow them to avoid synergic cytotoxicity of the two cytokines

Project description:TNFα and IFNg are two inflammatory cytokines that play critical roles in immune responses, but they can also negatively affect cell proliferation and viability. In particular, the combination of the two cytokines (TNFα/IFNγ) synergistically causes death in many cell types. We recently demonstrated that, mouse embryonic stem cells (ESCs) isolated from the inner cell mass of the blastocyst stage embryo, do not respond to TNFα and IFNg, thereby avoiding TNFα/IFNγ cytotoxicity. This study expanded our investigation to mouse trophoblast stem cells (TSCs) and differentiated trophoblasts (TSC-TBs), the major cellular constituents in trophectoderm of the blastocyst. We report here that TNFα or IFNγ alone has limited negative effect on the viability of mouse fibroblasts, but TNFα/IFNγ effectively kill these cells. However, TSCs and TSC-TBs are markedly resistant to the cytotoxicity of TNFα/IFNγ. With molecular and cellular approaches and transcriptomic analysis, we demonstrated that TSCs and TSC-TBs have attenuated responses to TNFα and IFNγ and the underlying molecular mechanisms that allow these cells to avoid the synergistic cytotoxicity of TNFα/IFNγ. Together with our previous findings in ESCs, we propose that the attenuated responses of TSCs, TSC-TBs, and ESCs to TNFα and IFNγ may serve as a protective mechanism that limits cytokine cytotoxicity in the blastocyst.

2023-11-10 | GSE224755 | GEO

Transcriptome of bovine trophoblast stem cells (TSC) - in self-renewal and differentiation

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.

2022-03-11 | GSE181252 | GEO

Transcriptome profiling of human cytomegalovirus-infected trophoblasts

Project description:Placental infection plays a central role in the pathogenesis of congenital human cytomegalovirus (HCMV) infections and is a cause of fetal growth restriction and pregnancy loss. HCMV can replicate in some trophoblast cell types, but it remains unclear how the virus evades antiviral immunity in the placenta and how infection compromises placental development and function. Human trophoblast stem cells (TSCs) can be differentiated into extravillous trophoblasts (EVTs) and syncytiotrophoblasts (STBs). This study assessed the utility of TSCs as a model of HCMV infection in the first trimester placenta. TSCs and TSC-derived EVTs and STBs were infected with HCMV (TB40/Ewt-mCherry). RNA was isolated from infected cells at 24, 48, and 72 hours post-infection and Illumina RNA-Sequencing was used to measure viral and host gene expression. Viral gene expression in TSCs does not follow the kinetic patterns observed during lytic infection in fibroblasts. Canonical antiviral responses were largely not observed in HCMV-infected TSCs and TSC-derived trophoblasts. Rather, infection dysregulated factors involved in cell identity, differentiation, and WNT signaling.

2023-12-14 | GSE248772 | GEO

Glucocorticoid Signaling Defines a Novel Commitment State during Adipogenesis In Vitro

Project description:Differentiation of 3T3-L1 preadipocytes can be induced by a 2-d treatment with a factor "cocktail" (DIM) containing the synthetic glucocorticoid dexamethasone (dex), insulin, the phosphodiesterase inhibitor methylisobutylxanthine (IBMX) and fetal bovine serum (FBS). We temporally uncoupled the activities of the four DIM components and found that treatment with dex for 48 h followed by IBMX treatment for 48 h was sufficient for adipogenesis, whereas treatment with IBMX followed by dex failed to induce significant differentiation. Similar results were obtained with C3H10T1/2 and primary mesenchymal stem cells. The 3T3-L1 adipocytes differentiated by sequential treatment with dex and IBMX displayed insulin sensitivity equivalent to DIM adipocytes, but had lower sensitivity to isoproterenol-stimulated lipolysis and reduced triglyceride content. The nondifferentiating IBMX–then-dex treatment produced transient expression of adipogenic transcriptional regulatory factors C/EBP{beta} and C/EBP{delta}, and little induction of terminal differentiation factors C/EBP{alpha} and PPAR{gamma}. Moreover, the adipogenesis inhibitor preadipocyte factor-1 (Pref-1) was repressed by DIM or by dex-then-IBMX, but not by IBMX-then-dex treatment. We conclude that glucocorticoids drive preadipocytes to a novel intermediate cellular state, the dex-primed preadipocyte, during adipogenesis in cell culture, and that Pref-1 repression may be a cell fate determinant in preadipocytes.

2008-07-25 | GSE11249 | GEO

Long-term maintenance of functional primary human hepatocytes using small molecules

Project description:Primary human hepatocytes (PHHs) were cultured with or without a cocktail of four small molecules, Y-27632, PD0325901, A83-01 and CHIR99021 (termed YPAC), and their transcriptomes after a long-trm culture were compared.

2019-09-01 | GSE135011 | GEO

Establishment in Culture of Mouse Expanded Potential Stem Cells

Project description:The zygote and blastomeres of a cleavage stage mouse embryo have the capacity to differentiate to all lineages in the embryo proper and extraembryonic tissues and are considered totipotent. Mouse ESCs can differentiate to embryonic lineages but have restricted potential to trophoblasts. We report here that cultures of a new type of stem cells with expanded potential (EPSCs) can be established from in vitro cultured mouse preimplantation embryos and individual blastomeres, from directly converting mouse ESCs, or from genetically reprogramming somatic cells. EPSCs differentiate to trophoblasts in vitro, and a single EPSC contributes in chimeras to both extraembryonic lineages including the placenta trophoblasts and the embryo proper. Molecular analyses reveal that EPSCs express core pluripotency factors similar to ESCs, but have enriched signature of preimplantation blastomeres. The data described here suggest that similar cell lines from other mammalian species might also be established in culture and stably maintained.

2014-08-27 | E-ERAD-285 | biostudies-arrayexpress

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