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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Membrane-polysome associated fractionation of HES2 embryonic stem cells

ABSTRACT: The membrane fraction and the cytosolic fraction of HES2 cells were collected and subjected to microarray. The experiment was performed in triplicate Keywords: membrane-polysome fractionation of RNA Three consecutive passages of HES2 cells were grown and subject to membrane-polysome fractionation. A total of 6 samples, (3 replicates of 2 fractions) were included in the experiment

ORGANISM(S): Homo sapiens

SUBMITTER: Gabriel Kolle

PROVIDER: E-GEOD-14037 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Identification of human embryonic stem cell surface markers by combined membrane-polysome translation state array analysis and immunotranscriptional profiling.

Kolle Gabriel G Ho Mirabelle M Zhou Qi Q Chy Hun S HS Krishnan Keerthana K Cloonan Nicole N Bertoncello Ivan I Laslett Andrew L AL Grimmond Sean M SM

Stem cells (Dayton, Ohio) 20091001 10

Surface marker expression forms the basis for characterization and isolation of human embryonic stem cells (hESCs). Currently, there are few well-defined protein epitopes that definitively mark hESCs. Here we combine immunotranscriptional profiling of hESC lines with membrane-polysome translation state array analysis (TSAA) to determine the full set of genes encoding potential hESC surface marker proteins. Three independently isolated hESC lines (HES2, H9, and MEL1) grown under feeder and feeder ...[more]

PMID: 19650036

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Membrane-polysome associated fractionation of HES2 embryonic stem cells

Project description:The membrane fraction and the cytosolic fraction of HES2 cells were collected and subjected to microarray. The experiment was performed in triplicate Keywords: membrane-polysome fractionation of RNA

2009-10-01 | GSE14037 | GEO

Direct comparison of HES2 ESC overexpressing CD30 variant with HES2 overexpressing GFP

Project description:HES2 ESC were infected with a lentivirus construct containing either CD30 (TNFRSF8) extracellular deficient variant or GFP, using the ViraPowerâ?¢ Promoterless Lentiviral GatewayÂ® Kits (Invitrogen). HES2 cells were recovered and grown for 19 passages. HES2 were commonly grown on Mouse Embryonic Feeder cells in the presence of KSOR media. Before collection of RNA, ES cells were FACs sorted with antibodies to GCMT-2 and CD9 to separate ES cells from differentiated cells and mouse feeders. The experiment was repeated in triplicate. The final aim was to deduce the effect of overexpressing the variant form of CD30 on gene expression in HES2 cells. Three consecutive passages of HES2 cells over-expressing either CD30V or GFP were grown and subject to FACs sorting, collection and microarray. A total of 6 samples, (3 replicates of these 2 populations) were used in the experiment.

2010-04-08 | E-GEOD-13261 | biostudies-arrayexpress

Homo sapiens

Project description:Membrane-polysome associated fractionation of HES2 embryonic stem cells

| PRJNA112395 | ENA

ESC (HES2, MEL1 or H9) grown in various conditions and FACs sorted for GCTM-2 and CD9

Project description:In the following experiment, three different hESC cell lines (HES2, MEL1 and H9) were grown in the presence of KOSR, KOSR or mTESR containing media respectively. KOSR (Knockout serum replacement medium) is a standard media allowing the growth of hESC without the need for manual passaging - Enzymatic passaging is used instread. mTESR (Ludwig et al., 2007) is a media allowing the growth of hESC on matrigel with enzymatic passaging. At day 7 after passaging, these cells were FACs sorted for the presence of GCTM-2 and CD9 into 4 distinct fractions (p4: GCTM-2-neg, CD9-neg; p5: GCTM-2-low, CD9-low; p6: GCTM-2-medium, CD9-medium and p7: GCTM-2-high, CD9-high). For each cell line-subfraction combination, RNA was harvested and subject to microarray. From each experiment (individual cell line), 4 samples were collected (p4, p5, p6 and p7) and these were subject to microarray. In each case the experiment was performed in triplicate Three independent experiments of three consecutive passages of ESC cells were grown and subject to FACs sorting, collection and microarray. A total of 36 samples, (3 experiments of 3 replicates of 4 sorted populations of cells (p4, p5, p6, p7))

2010-04-07 | E-GEOD-13877 | biostudies-arrayexpress

Polysome-seq in zebrafish early embryonic development

Project description:We followed the polysomal association of maternal and early zygotic transcriptome over the first few hours of embryonic development, prior to and after MBT. We isolated polysome-associated (bound) and non-polysome-associated (unbound) mRNAs using sucrose gradient centrifugation followed by size fractionation. Using next generation sequencing (RNA-seq), we profiled the transcriptome in polysome-bound and unbound fractions. Our analysis revealed distinct dynamics of polysome association of cytoplasmically polyadenylated maternal mRNAs.

2017-10-14 | GSE88776 | GEO

HES2 embryonic stem cells (ESCs) grown in standard conditions and FACs sorted for GCTM-2 and CD9

Project description:HES2 ESCs were grown in standard ES culture conditions. After 1 week, these cells were FACs sorted for the presence of GCTM-2 and CD9. Keywords: Sorted cell comparison Three consecutive passages of HES2 cells were grown and subjected to FACs sorting. For each, 4 sorted populations of cells (p4, p5, p6, p7) were collected and these were subjected to microarray. A total of 12 samples: 3 replicates each of p4, p5, p6, and p7.

2010-04-08 | E-GEOD-13201 | biostudies-arrayexpress

Identifying the translatome of mouse NEBD – stage oocytes via SSP-profiling; a novel polysome fractionation method

Project description:Meiotic maturation of oocyte relies on pre-synthesized maternal mRNA, the translation of which is highly coordinated in space and time. Here, we provide a detailed polysome profiling protocol utilising small SW55Ti ultracentrifugation tubes with a volume of 5 ml. This newly optimized method, named Scarce Sample Polysome Profiling (SSP-profiling), is suitable for both scarce and conventional sample sizes and is compatible with downstream RNA-seq to identify polysome associated transcripts. Utilising SSP-profiling we have assayed the translatome of mouse oocytes at the onset of nuclear envelope breakdown (NEBD); a developmental stage that has thus far remained unexplored. Our analyses have identified 1778 transcripts with moderate to strong polysome occupancy, including abundantly represented mRNAs encoding mitochondrial and ribosomal proteins, proteoasomal components, glycolytic and amino acids synthetic enzymes, proteins involved in cytoskeleton organization plus RNA-binding and translation initiation factors. In addition to transcripts encoding known players of meiotic progression, we have also identified several mRNAs encoding proteins of unknown function. Polysome profiles generated using SSP-profiling were more than comparable to those developed using existing conventional approaches, being demonstrably superior in their resolution, reproducibility, versatility, speed of derivation and downstream protocol applicability.

2020-02-12 | GSE121358 | GEO

RNA-fractionation sequencing

Project description:RNA-fractionation sequencing

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RNA 5'end sequencing in polysome profiling fractions

Project description:It has been shown that in mammalian cells alternative transcription initiation is extensively regulated during development and across cell-types, which confers dynamic transcript 5âUTR repertoire. However it is underexplored how the heterogeneity of 5âUTR isoforms would affect the downstream steps for protein expression, such as translation. To this end, we globally compared the translational profile of distinct mRNA TSS isoforms in mouse fibroblast cells, by combining deep-sequencing based mRNA 5âends profiling and polysome fractionation. We demonstrated the extensive translation regulation conferred by TSS heterogeneity. 5'end sequencing in seven polysome fractions, in two replicates, using Illumina Hiseq2000

2016-07-20 | E-GEOD-78241 | biostudies-arrayexpress

Lignocellulose fractionation

Project description:Lignocellulose fractionation by microbial consortia

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