Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA318353 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Here we report the derivation of human haploid ESCs from parthenogenetic haploid embryos. We used RNA-seq to compare the gene expression levels among human parthenogenetic haploid ESCs (hPGES), normal human ESCs (H9) and human forskin fibroblasts and identified that these cells express conventional ESCs pluripotent markers and most maternally imprinted genes were down-regulated.
2016-07-13 | GSE80988 | GEO
Project description:mRNA expression data from human parthenogenetic haploid ESCs (hPGES), normal ESCs (H9) and human fibroblast
| PRJNA320251 | ENA
Project description:Genomic analysis of human parthenogenetic haploid ESCs (hPGES), normal human ESCs(H9) and human forskin fibroblast
| PRJNA320304 | ENA
Project description:Here we report the derivation of human PBTESCs from polar body transfer resconstructed embryos. We used RNA-seq to compare the gene expression levels among human parthenogenetic haploid ESCs (hPGES)、normal human ESCs (H9) and human forskin fibroblasts and identified that these cells express conventional ESCs pluripotent markers and most maternally imprinted genes were down-regulated.
2018-03-04 | GSE95706 | GEO
Project description:The genomic DNA sample of hPGES were compared to UCSC Human genome19 by CNV data. The data confirmed that the human parthenogenetic haploid ESCs sustained normal genome integrity
2016-07-13 | GSE80208 | GEO
Project description:Here we report the derivation of human parthenogenetic haploid ESCs which contain only one set of chromosome. These two cell lines, which we designated hPGES1 and hPGES2, show conventional ESCs and parthenogenetic-derived DNA methylation state.
2016-07-13 | GSE80226 | GEO
Project description:Genomic imprinting is a important biological process, which leads to parental specific gene expressions. Improper gene imprinting results in several developmental abnormalities, cancer and other diseases. Studies in mice indicated genomic imprinting establishment relied on parental allele-specific DNA methylation during gametogenesis. Despite the fact that genomic imprinting is highly conserved in mammalian, the species specific pattern exists. Until now, except that of in mouse, informations about imprinting patterns is little, especially in primates. Through generation genome-wide 5mC and 5hmC profiles for two types of haploid genomes from rhesus monkeys, including parthenogenetic haploid ESCs ( PG ha ESCs) (derived from rhesus monkey parthenogenetic embryos) and sperms. We clearly characterized and distinguished methylome (5mC) from hydroxymethylome (5hmC)(which can not discriminate from methylome in traditional bisulfite (BS) sequencing) in haploid genomes. Based on these information, we determined distribution patterns of 5mC and 5hmC in ha ESCs and sperms. Interestingly, both 5hmC levels and distribution patterns were similar in ha ESCs and sperms, and 5hmC which is enriched in the regions with low 5mC frequency. Meanwhile through comparing DNA methylation and hydroxymethylation status between sperms and ha ESCs, we first provided a fundamental information of monkey imprinted differentially methylated regions (DMRs) distribution in monkey chromosomes. Second, we observed that DMRs did not overlap with hydroxymethylated regions (DMR or DhMR), suggesting that establishment of imprinted regions was not interfered by 5hmC. Our results demonstrate DNA methylation profiling of PG ha ESCs and sperms can be uesed as a powerful and effective method to map and characterize imprinted regions in non-human primates genome.
2016-12-08 | GSE75817 | GEO
Project description:CNV anlysis of human parthenogenetic haploid ESCs (hPGES)
| PRJNA318290 | ENA
Project description:Diploidy is a fundamental genetic feature in mammals, in which haploid cells normally arise only as post-meiotic germ cells that serve to insure a diploid genome upon fertilization. Gamete manipulation has yielded haploid embryonic stem (ES) cells from several mammalian species, but as of yet not from humans. Here we analyzed a large collection of human parthenogenetic ES cell lines originating from haploid oocytes, leading to the successful isolation and maintenance of human ES cell lines with a normal haploid karyotype. Haploid human ES cells exhibited typical pluripotent stem cell characteristics such as self-renewal capacity and a pluripotency-specific molecular signature. Although haploid human ES cells resembled their diploid counterparts, they also displayed distinct properties including differential regulation of X chromosome inactivation and genes involved in oxidative phosphorylation, alongside reduction in absolute gene expression levels and cell size. Intriguingly, we found that a haploid genome is compatible not only with the undifferentiated pluripotent state, but also with differentiated somatic fates representing all three embryonic germ layers, despite a persistent dosage imbalance between the autosomes and X chromosome. We expect that haploid human ES cells will provide novel means for studying human functional genomics, development and evolution. Genome-wide DNA methylation profiling by Illumina Infinium HumanMethylation 450K Beadchip was performed on a total of 12 samples, including undifferentiated haploid and diploid human parthenogenetic embryonic stem cells in either G1 or G2/M, as well as 3 in vitro fertilization (IVF) control embryonic stem cell lines.
2016-03-16 | E-GEOD-71457 | biostudies-arrayexpress
Project description:Genome wide DNA methylation profiling of somatic and pluripotent cells from different lineages (mesoderm, endoderm and parthenogenetic germ cells) The Illumina Infinium 27k Human DNA methylation Beadchip v1.2 was used to obtain DNA methylation profiles across approximately 27,000 CpGs. Samples included 1 Human ES cell line, 2 beta cells, 2 beta-iPS cells, 1 fibroblast, 2 fibroblast-iPS cells, 2 parthenogenetic cells and 3 parthenogenetic-iPS cells. Molecular reprogramming of somatic cells into human induced pluripotent stem cells (iPSCs) is accompanied by extensive changes in gene expression patterns and epigenetic marks. To better understand the link between gene expression and DNA methylation, we have profiled human somatic cells from different embryonic cell types (endoderm, mesoderm and parthenogenetic germ cells) and the iPSCs generated from them. We show that reprogramming is accompanied by extensive DNA methylation in CpG-poor promoters, sparing CpG-rich promoters. Intriguingly, methylation in CpG-poor promoters occurred not only in downregulated genes, but also in genes that are not expressed in the parental somatic cells or their respective iPSCs. These genes are predominantly tissue-specific genes of other cell types from different lineages. Our results suggest a role of DNA methylation in the silencing of the somatic cell identity by global non-specific methylation of tissue-specific genes from all lineages, regardless of their expression in the parental somatic cells. Genomic DNA from each sample was bisulfite converted, DNA was applied to BeadChips (Illumina). 13 samples included, Human ES cell as control.
2014-05-01 | E-GEOD-52238 | biostudies-arrayexpress