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Establishment of Bovine-Induced Pluripotent Stem Cells.

ABSTRACT: Pluripotent stem cells (PSCs) have been successfully developed in many species. However, the establishment of bovine-induced pluripotent stem cells (biPSCs) has been challenging. Here we report the generation of biPSCs from bovine mesenchymal stem cells (bMSCs) by overexpression of lysine-specific demethylase 4A (KDM4A) and the other reprogramming factors OCT4, SOX2, KLF4, cMYC, LIN28, and NANOG (K_dOSKMLN). These biPSCs exhibited silenced transgene expression at passage 10, and had prolonged self-renewal capacity for over 70 passages. The biPSCs have flat, primed-like PSC colony morphology in combined media of knockout serum replacement (KSR) and mTeSR, but switched to dome-shaped, naïve-like PSC colony morphology in mTeSR medium and 2i/LIF with single cell colonization capacity. These cells have comparable proliferation rate to the reported primed- or naïve-state human PSCs, with three-germ layer differentiation capacity and normal karyotype. Transcriptome analysis revealed a high similarity of biPSCs to reported bovine embryonic stem cells (ESCs) and embryos. The naïve-like biPSCs can be incorporated into mouse embryos, with the extended capacity of integration into extra-embryonic tissues. Finally, at least 24.5% cloning efficiency could be obtained in nuclear transfer (NT) experiment using late passage biPSCs as nuclear donors. Our report represents a significant advance in the establishment of bovine PSCs.

SUBMITTER: Su Y

PROVIDER: S-EPMC8508593 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Establishment of Bovine Induced Pluripotent Stem Cells

Project description:Pluripotent stem cells (PSCs) have been successfully developed in many species. However, generating bovine induced pluripotent stem cells (biPSCs) has been challenging. Here we report the generation of biPSCs by overexpression of lysine-specific demethylase 4A (KDM4A) and repro-gramming factors OCT4, SOX2, KLF4, cMYC, LIN28, and NANOG (KdOSKMLN). These biPSCs exhibited silenced transgene expression at passage 10, and had prolonged self-renewal capacity for over 70 passages. The biPSCs have flat, primed-like PSC colony morphology in combined me-dia of knockout serum replacement (KSR) and mTeSR, but switched to dome-shaped, naïve-like PSC colony morphology in mTeSR medium and 2i/LIF with single cell colonization capacity. These cells have comparable proliferation rate to the reported primed- or naïve-state human PSCs, with three-germ layer differentiation capacity and normal karyotype. Transcriptome analysis revealed a high similarity of biPSCs to reported bovine embryonic stem cells (ESCs) and embryos. The naïve-like biPSCs can be incorporated into mouse embryos, with the extended capacity of in-tegration into extra-embryonic tissues. Finally, 24.6% cloning efficiency could be achieved in nu-clear transfer (NT) experiment using late passage biPSCs as nuclear donors. Our report represents a significant advance in the establishment of bovine PSCs.

2021-09-27 | GSE180931 | GEO

Establishment of Bovine Induced Pluripotent Stem Cells

Project description:Establishment of Bovine Induced Pluripotent Stem Cells

| PRJNA750110 | ENA

Establishment of bovine trophoblast stem cells.

Project description:Here, we report that a chemical cocktail (LCDM: leukemia inhibitory factor [LIF], CHIR99021, dimethinedene maleate [DiM], minocycline hydrochloride), previously developed for extended pluripotent stem cells (EPSCs) in mice and humans, enables de novo derivation and long-term culture of bovine trophoblast stem cells (TSCs). Bovine TSCs retain developmental potency to differentiate into mature trophoblast cells and exhibit transcriptomic and epigenetic (chromatin accessibility and DNA methylome) features characteristic of trophectoderm cells from early bovine embryos. The bovine TSCs established in this study will provide a model to study bovine placentation and early pregnancy failure.

| S-EPMC10950030 | biostudies-literature

Establishment of induced pluripotent stem cells from centenarians for neurodegenerative disease research.

Project description:Induced pluripotent stem cell (iPSC) technology can be used to model human disorders, create cell-based models of human diseases, including neurodegenerative diseases, and in establishing therapeutic strategies. To detect subtle cellular abnormalities associated with common late-onset disease in iPSCs, valid control iPSCs derived from healthy donors free of serious late-onset diseases are necessary. Here, we report the generation of iPSCs from fibroblasts obtained immediately postmortem from centenarian donors (106- and 109-years-old) who were extremely healthy until an advanced age. The iPSCs were generated using a conventional method involving OCT4, SOX2, KLF4, and c-MYC, and then differentiated into neuronal cells using a neurosphere method. The expression of molecules that play critical roles in late-onset neurodegenerative diseases by neurons differentiated from the centenarian-iPSCs was compared to that of neurons differentiated from iPSCs derived from familial Alzheimer's disease and familial Parkinson's disease (PARK4: triplication of the ? synuclein gene) patients. The results indicated that our series of iPSCs would be useful in neurodegeneration research. The iPSCs we describe, which were derived from donors with exceptional longevity who were presumed to have no serious disease risk factors, would be useful in longevity research and as valid super-controls for use in studies of various late-onset diseases.

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Establishment of bovine expanded potential stem cells.

Project description: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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Establishment of Skeletal Myogenic Progenitors from Non-Human Primate Induced Pluripotent Stem Cells.

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| S-EPMC10137227 | biostudies-literature

Establishment and adipocyte differentiation of polycystic ovary syndrome-derived induced pluripotent stem cells.

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| S-EPMC6496004 | biostudies-literature

Establishment of human trophoblast stem cells from human induced pluripotent stem cell-derived cystic cells under micromesh culture.

Project description:BackgroundTrophoblasts as a specific cell lineage are crucial for the correct function of the placenta. Human trophoblast stem cells (hTSCs) are a proliferative population that can differentiate into syncytiotrophoblasts and extravillous cytotrophoblasts. Many studies have reported that chemical supplements induce the differentiation of trophoblasts from human induced pluripotent stem cells (hiPSCs). However, there have been no reports of the establishment of proliferative hTSCs from hiPSCs. Our previous report showed that culturing hiPSCs on micromesh as a bioscaffold induced cystic cells with trophoblast properties. Here, we aimed to establish hTSCs from hiPSCs.MethodsWe used the micromesh culture technique to induce hiPSC differentiation into trophoblast cysts. We then reseeded and purified cystic cells.ResultsThe cells derived from the reseeded cysts were highly proliferative. Low expression levels of pluripotency genes and high expression levels of TSC-specific genes were detected in proliferative cells. The cells could be passaged, and further directional differentiation into syncytiotrophoblast- and extravillous cytotrophoblast-like cells was confirmed by marker expression and hormone secretion.ConclusionsWe established hiPSC-derived hTSCs, which may be applicable for studying the functions of trophoblasts and the placenta. Our experimental system may provide useful tools for understanding the pathogenesis of infertility owing to trophoblast defects in the future.

| S-EPMC6686486 | biostudies-literature

Establishment of a novel culture method for maintaining intestinal stem cells derived from human induced pluripotent stem cells.

Project description:The small intestine plays an important role in the pharmacokinetics of orally administered drugs due to the presence of drug transporters and drug-metabolizing enzymes. However, few appropriate methods exist to investigate intestinal pharmacokinetics. Induced pluripotent stem (iPS) cells can form various types of cells and represent a potentially useful tool for drug discovery. We previously reported that differentiated enterocytes from human iPS cells are useful for pharmacokinetic studies; however, the process is time and resource intensive. Here, we established a new two-dimensional culture method for maintaining human iPS-cell-derived intestinal stem cells (ISCs) with differentiation potency and evaluated their ability to differentiate into enterocytes exhibiting appropriate pharmacokinetic function. The culture method used several factors to activate signalling pathways required for maintaining stemness, followed by differentiation into enterocytes. Functional evaluation was carried out to verify epithelial-marker expression and inducibility and activity of metabolic enzymes and transporters. Our results confirmed the establishment of an ISC culture method for maintaining stemness and verified that the differentiated enterocytes from the maintained ISCs demonstrated proper pharmacokinetic function. Thus, our findings describe a time- and cost-effective approach that can be used as a general evaluation tool for evaluating intestinal pharmacokinetics.

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Establishment of Human Neural Progenitor Cells from Human Induced Pluripotent Stem Cells with Diverse Tissue Origins.

Project description:Human neural progenitor cells (hNPCs) have previously been generated from limited numbers of human induced pluripotent stem cell (hiPSC) clones. Here, 21 hiPSC clones derived from human dermal fibroblasts, cord blood cells, and peripheral blood mononuclear cells were differentiated using two neural induction methods, an embryoid body (EB) formation-based method and an EB formation method using dual SMAD inhibitors (dSMADi). Our results showed that expandable hNPCs could be generated from hiPSC clones with diverse somatic tissue origins. The established hNPCs exhibited a mid/hindbrain-type neural identity and uniform expression of neural progenitor genes.

| S-EPMC4861799 | biostudies-literature

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