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Comprehensive gene expression analysis of human embryonic stem cell during differentiation into neural cells

ABSTRACT: In this research we have done a comprehensive transcripteome analysis of hESC differentiation at three different stages: early neural differentiation, neural ectoderm, and mature neurons. We detected and validated time-dependent gene expression patterns and represented that the gene expression patterns exhibit early ESC differentiation. Pathway analysis revealed dynamic expression patterns of members of several signaling pathways. The hESC cells were passaged every 7 days using collagenase/dispase and cultured under feeder-free culture conditions on Matrigel in hESC medium. Three biological replicates per time point served as the input to generate biotin-labeled cRNA using a linear amplification kit.

ORGANISM(S): Homo sapiens

SUBMITTER: Vahid Hajihoseini

PROVIDER: E-GEOD-28633 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Comprehensive gene expression analysis of human embryonic stem cells during differentiation into neural cells.

Fathi Ali A Hatami Maryam M Hajihosseini Vahid V Fattahi Faranak F Kiani Sahar S Baharvand Hossein H Salekdeh Ghasem Hosseini GH

PloS one 20110728 7

Global gene expression analysis of human embryonic stem cells (hESCs) that differentiate into neural cells would help to further define the molecular mechanisms involved in neurogenesis in humans. We performed a comprehensive transcripteome analysis of hESC differentiation at three different stages: early neural differentiation, neural ectoderm, and differentiated neurons. We identified and validated time-dependent gene expression patterns and showed that the gene expression patterns reflect ear ...[more]

PMID: 21829537

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Comprehensive gene expression analysis of human embryonic stem cell during differentiation into neural cells

Project description:In this research we have done a comprehensive transcripteome analysis of hESC differentiation at three different stages: early neural differentiation, neural ectoderm, and mature neurons. We detected and validated time-dependent gene expression patterns and represented that the gene expression patterns exhibit early ESC differentiation. Pathway analysis revealed dynamic expression patterns of members of several signaling pathways.

2011-04-15 | GSE28633 | GEO

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Quaking regulates lineage-specific splicing patterns between early progenitor cells and is required for cardiac cell fate specification

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Distinct classes of genes behave as either drivers or dependents of replication timing switches (Replication-Timing).

Project description:Duplication of the genome in mammalian cells occurs in a defined temporal order referred as its replication-timing program (RT). RT is regulated in units of 400-800 Kb referred as replication domains (RDs) and changes dynamically during development. Changes in RT are generally coordinated with transcriptional competence and changes in sub-nuclear position. We generated genome-wide RT profiles for 29 distinct human cell types including embryonic stem cell (hESC)-derived, primary cells and established cell lines representing intermediate stages of endoderm, mesoderm, ectoderm and neural crest (NC) development. We identified clusters of RDs that replicate at unique times in each stage (RT signatures). Surprisingly, transcriptome data revealed that, despite an overall correlation between early replication and transcriptional activity, most genes that switched RT during differentiation can be expressed when late replicating. Intriguingly, this class of genes was nonetheless induced to high expression levels prior to a late to early RT switch and down-regulated after the switch back to late replication. These results clarify the complex relationship between transcription and RT and identify classes of genes that behave as potential drivers of the RT switch vs. those that may depend upon an RT switch for transcriptional induction. Genome-wide replication timing profiles were constructed from 60 human samples covering 29 distinct cell types including embryonic stem cell (hESC)-derived, primary cells and established cell lines representing intermediate stages of endoderm, mesoderm, ectoderm and neural crest (NC) development.

2015-05-28 | E-GEOD-63428 | biostudies-arrayexpress

RNA-seq analysis of gene expression patterns responding to TSA treatment during hESC neural differentiation

Project description:We report the differential roles of an HDAC inhibitor-TSA during hESC nerual commitment. In the initiation of hESC differentiation, TSA could inhibit the downregulation of pluripotency genes to maintain pluripotency, whereas in the neural commitment stage, TSA could promote neural gene expression to assist hESC nerual determination. Examination of gene expression patterns in hESCs, day 4 or day 8 differentiated cells without or with TSA treatment

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Homo sapiens

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A post-transcriptional program coordinated by CSDE1 prevents intrinsic neural differentiation of human embryonic stem cells

Project description:While the transcriptional network of human embryonic stem cells (hESCs) has been extensively studied, relatively little is known about how post-transcriptional modulations determine hESC function. RNA-binding proteins play central roles in RNA regulation, including translation and turnover. Here we show that the RNA-binding protein CSDE1 is highly expressed in hESCs to maintain their undifferentiated state and prevent default neural fate. Notably, loss of CSDE1 accelerates neural differentiation and potentiates neurogenesis. Conversely, ectopic expression of CSDE1 impairs neural differentiation. We find that CSDE1 post-transcriptionally modulates core components of multiple regulatory nodes of hESC identity, neuroectoderm commitment and neurogenesis. Among these key pro-neural/neuronal factors, CSDE1 binds fatty acid binding protein 7 (FABP7) and vimentin (VIM) mRNAs as well as transcripts involved in neuron projection development regulating their stability and translation. Thus, our results uncover CSDE1 as a central post-transcriptional regulator of hESC identity and neurogenesis.

2018-05-16 | PXD007270 | Pride

Co-immumnoprecipitation experiments to identify protein bindining partners of CSDE1

2018-05-16 | PXD007271 | Pride

Single cell gene expression of early E8.5 pioneer neural crest cells and paraxial mesoderm

Project description:Laser capture microdissection (LCM) was used to isolate cells from the principal critical micro-regions, whose development, differentiation and signaling interactions are responsible for the construction of the mammalian face. At E8.5, as migrating neural crest cells begin to exit the neural fold/epidermal ectoderm boundary, we examined the facial mesenchyme, composed of neural crest and paraxial mesoderm cells, as well as cells from adjacent neuroepithelium We performed single cell studies to better define the gene expression states of the early E8.5 pioneer neural crest cells and paraxial mesoderm, and present microarray data detailing expression patterns within these embryonic cell populations. Mouse emrbyos were harvested at developmental stage E8.5 and single cells were captured from the neuroepithilium, neural crest, and paraxial mesoderm. RNA was extracted, labelled, and quantified using the Mouse ST-l microarray.

2014-03-18 | E-GEOD-55964 | biostudies-arrayexpress

A post-transcriptional program coordinated by CSDE1 prevents intrinsic neural differentiation of human embryonic stem cells

Project description:We compared hESCs with their neuronal counterpart to quantify differences in the expression of cold-shock domain containing proteins. While the transcriptional network of human embryonic stem cells (hESCs) has been extensively studied, relatively little is known about how post-transcriptional modulations determine hESC function. RNA-binding proteins play central roles in RNA regulation, including translation and turnover. Here we show that the RNA-binding protein CSDE1 is highly expressed in hESCs to maintain their undifferentiated state and prevent default neural fate. Notably, loss of CSDE1 accelerates neural differentiation and potentiates neurogenesis. Conversely, ectopic expression of CSDE1 impairs neural differentiation. We find that CSDE1 post-transcriptionally modulates core components of multiple regulatory nodes of hESC identity, neuroectoderm commitment and neurogenesis. Among these key pro-neural/neuronal factors, CSDE1 binds fatty acid binding protein 7 (FABP7) and vimentin (VIM) mRNAs as well as transcripts involved in neuron projection development regulating their stability and translation. Thus, our results uncover CSDE1 as a central post-transcriptional regulator of hESC identity and neurogenesis.

2018-05-16 | PXD007738 | Pride

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