Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA362899 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR5195700_1.fastq.gz | Fastqsanger.gz | |||
| SRR5195700_2.fastq.gz | Fastqsanger.gz | |||
| SRR5195701_1.fastq.gz | Fastqsanger.gz | |||
| SRR5195701_2.fastq.gz | Fastqsanger.gz | |||
| SRR5195702_1.fastq.gz | Fastqsanger.gz |
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Project description:Erythroblasts cultured from six healthy commercial available cord blood CD34+ cells were used to generate an cord blood erythroblast transcriptome. Cellular maturation was maintained including enucleation. On culture day 14 total RNA was isolated (see PMID: 23798711 for details). These RNA-Seq profiles were generated after flow cytometric sorting (live cell gating of culture Day 14 erythroblasts according to forward and side scatter).
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Project description:Human erythroblasts purified from cord blood were cultured in vitro and FACS-sorted into five highly purified populations representing distinct differentiation stages: proerythroblasts, early basophilic erythroblasts, late basophilic erythroblasts, polychromatophilic erythroblasts, and orthochromatophilic erythroblasts. The methods for culture and sorting experiments are given in Hu et al. 2013. For each RNA-seq library, RNA was isolated from 1x 106 sorted human erythroblasts using RNeasy Plus Mini kits (Qiagen). Libraries were then prepared using Illumina TruSeqTM RNA kits to obtain 50 nt reads. Collaborators at the New Your Blood Center were responsible for erythroblast culture, FACS purification of erythroblast populations, and acquisition of RNA-seq data. Collaborators at U.C. Berkeley and Lawrence Berkeley National Laboratory performed data analysis and experimental validation of alternative splicing in erythroblasts. Results: Differentiating erythroblasts execute a dynamic alternative splicing program that is enriched in genes affecting cell cycle, organelle organization, chromatin function, and RNA processing. Alternative splicing plays a major role in regulating gene expression to ensure synthesis of appropriate proteome at each stage as the cells remodel in preparation for production of mature red cells. Erythroid differentiation stage-specific transcriptome analysis was performed by RNA-seq analysis of highly purified erythroblast populations
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Project description:Human erythroblasts purified from cord blood were cultured in vitro and FACS-sorted into five highly purified populations representing distinct differentiation stages: proerythroblasts, early basophilic erythroblasts, late basophilic erythroblasts, polychromatophilic erythroblasts, and orthochromatophilic erythroblasts. The methods for culture and sorting experiments are given in Hu et al. 2013. For each RNA-seq library, RNA was isolated from 1x 106 sorted human erythroblasts using RNeasy Plus Mini kits (Qiagen). Libraries were then prepared using Illumina TruSeqTM RNA kits to obtain 50 nt reads. Collaborators at the New Your Blood Center were responsible for erythroblast culture, FACS purification of erythroblast populations, and acquisition of RNA-seq data. Collaborators at U.C. Berkeley and Lawrence Berkeley National Laboratory performed data analysis and experimental validation of alternative splicing in erythroblasts. Results: Differentiating erythroblasts execute a dynamic alternative splicing program that is enriched in genes affecting cell cycle, organelle organization, chromatin function, and RNA processing. Alternative splicing plays a major role in regulating gene expression to ensure synthesis of appropriate proteome at each stage as the cells remodel in preparation for production of mature red cells.
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Project description:Erythroblasts from human cord blood
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Project description:MSC-adherent hematopoietic stem and progenotir cells (HSPC) express adhesion-associated genes at higher levels than non-adherent cells while cell-cycle and differentiation-associated genes are not significantly changed between the two cell populations. We used microarray to confirm identity of MSC-adherent and non-adherent cord blood-derived HSPCs and to exclude that cell cycle and differentiation affect adhesive capacity. CD34 positive cells were isolated from human cord blood (not older than 24h), expanded for 3 days and assayed for the adhesion to MSC. The adherent and non-adherent live CD34+ cells were sorted and total RNA was extracted.
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Project description:RNA-Seq of sorted human cord-blood derived hematopoietic cell populations
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Project description:We analysed the transcriptome of different HSC-enriched subpopulations of cells sorted from human umbilical cord blood and isolated from several individuals with different genetic backgrounds. We aim at identifying new cell surface markers associated with human HSC and downstream mature hematopoietic cell activity. RNA-seq of CD34+CD45RA- cord blood cells from 17 non-pooled individuals.
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