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Derivation of monkey parthenogenetic haploid embryonic stem cells

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Macaca fascicularis Macaca mulatta

PROVIDER: GSE43980 | GEO | 2013/06/26

SECONDARY ACCESSION(S): PRJNA188284

REPOSITORIES: GEO

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Derivation of monkey parthenogenetic haploid embryonic stem cells

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2013-06-26 | E-GEOD-43980 | biostudies-arrayexpress

Derivation and differentiation of haploid human embryonic stem cells

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Derivation of rhesus monkey parthenogenetic embryonic stem cells and its microRNA signature.

Project description:Parthenogenetic embryonic stem cells are considered as a promising resource for regeneration medicine and powerful tools for developmental biology. A lot of studies have revealed that embryonic stem cells have distinct microRNA expression pattern and these microRNAs play important roles in self-renewal and pluripotency of embryonic stem cells. However, few studies concern about microRNA expression pattern in parthenogenetic embryonic stem cells, especially in non-human primate--the ideal model species for human, largely due to the limited rhesus monkey parthenogenetic embryonic stem cells (rpESCs) available and lack of systematic analysis of the basics of rpESCs. Here, we derived two novel rpESCs lines and characterized their microRNA signature by Solexa deep sequencing. These two novel rpESCs shared many properties with other primate ESCs, including expression of pluripotent markers, capacity to generate derivatives representative of all three germ layers in vivo and in vitro, maintaining of euploid karyotype even after long culture. Additionally, lack of some paternally expressed imprinted genes and identity of Single-nucleotide Polymorphism (SNP) compare to their oocyte donors support their parthenogenesis origin. By characterizing their microRNA signature, we identified 91 novel microRNAs, except those are also detected in other primate ESCs. Moreover, these two novel rpESCs display a unique microRNA signature, comparing to their biparental counterpart ESCs. Then we analyzed X chromosome status in these two novel rpESCs; results suggested that one of them possesses two active X chromosomes, the other possesses only one active X chromosome liking biparental female embryonic stem cells. Taken together, our novel rpESCs provide a new alternative to existing rhesus monkey embryonic stem cells, microRNA information expands rhesus monkey microRNA data and may help understanding microRNA roles in pluripotency and parthenogenesis.

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Androgenetic haploid embryonic stem cells

Project description:This SuperSeries is composed of the SubSeries listed below.

2012-08-30 | GSE39392 | GEO

mRNA and microRNA expression profiles in androgenetic, parthenogenetic and fertilized embryonic stem cells

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Germline potential of parthenogenetic haploid mouse embryonic stem cells.

Project description:Haploid embryonic stem cells (ESCs) have recently been derived from parthenogenetic mouse embryos and offer new possibilities for genetic screens. The ability of haploid ESCs to give rise to a wide range of differentiated cell types in the embryo and in vitro has been demonstrated. However, it has remained unclear whether haploid ESCs can contribute to the germline. Here, we show that parthenogenetic haploid ESCs at high passage have robust germline competence enabling the production of transgenic mouse strains from genetically modified haploid ESCs. We also show that differentiation of haploid ESCs in the embryo correlates with the gain of a diploid karyotype and that diploidisation is the result of endoreduplication and not cell fusion. By contrast, we find that a haploid karyotype is maintained when differentiation to an extra-embryonic fate is forced by induction of Gata6.

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Derivation of Haploid Neurons from Mouse Androgenetic Haploid Embryonic Stem Cells.

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Derivation and maintenance of mouse haploid embryonic stem cells.

Project description:Ploidy represents the number of chromosome sets in a cell. Although gametes have a haploid genome (n), most mammalian cells have diploid genomes (2n). The diploid status of most cells correlates with the number of probable alleles for each autosomal gene and makes it difficult to target these genes via mutagenesis techniques. Here, we describe a 7-week protocol for the derivation of mouse haploid embryonic stem cells (hESCs) from female gametes that also outlines how to maintain the cells once derived. We detail additional procedures that can be used with cell lines obtained from the mouse Haplobank, a biobank of >100,000 individual mouse hESC lines with targeted mutations in 16,970 genes. hESCs can spontaneously diploidize and can be maintained in both haploid and diploid states. Mouse hESCs are genomically and karyotypically stable, are innately immortal and isogenic, and can be derived in an array of differentiated cell types; they are thus highly amenable to genetic screens and to defining molecular connectivity pathways.

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Derivation of haploid embryonic stem cells from mouse embryos.

Project description:Most animals are diploid, but haploid-only and male-haploid (such as honeybee and ant) species have been described. The diploid genomes of complex organisms limit genetic approaches in biomedical model species such as mice. To overcome this problem, experimental induction of haploidy has been used in fish. Haploid development in zebrafish has been applied for genetic screening. Recently, haploid pluripotent cell lines from medaka fish (Oryzias latipes) have also been established. In contrast, haploidy seems less compatible with development in mammals. Although haploid cells have been observed in egg cylinder stage parthenogenetic mouse embryos, most cells in surviving embryos become diploid. Here we describe haploid mouse embryonic stem cells and show their application in forward genetic screening.

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