Cardiac precursor differentiation from hESCs by lentiviral promoter drug selection
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE13297 | GEO | 2008/10/24
SECONDARY ACCESSION(S): PRJNA109509
REPOSITORIES: GEO
Similar Datasets
Project description:Several of the essential core transcriptional control elements in human embryonic stem cells (ESCs) have been identified, but the production and function of alternative isoforms in self-renewal, pluripotency and tissue lineage specification remain largely unknown. We have modified the H9 ESC line to allow for drug selection of human pluripotent ESCs and cardiac progenitors. Exon-level microarray expression data from undifferentiated ESCs and day 40 cardiac precursors were used to identify differentially expressed and alternative splice isoforms during differentiation. Keywords: comparison RNA from a homogenous population of undifferentiated hESCs (REX1-neo promoter drug selection) and differentiated day 40 cardiomyocytes (alpha MHC-puro promoter drug selection) was isolated and profiled with exon-tiling arrays.
2008-10-24 | E-GEOD-13297 | biostudies-arrayexpress
Project description:Alternative splicing (AS) is a key process underlying the expansion of proteomic diversity and the regulation of gene expression. However, the contribution of AS to the control of embryonic stem cell (ESC) pluripotency is not well understood. Here, we identify an evolutionarily conserved ESC-specific AS event that changes the DNA binding preference of the forkhead family transcription factor FOXP1. We show that the ESC-specific isoform of FOXP1 stimulates the expression of transcription factor genes required for pluripotency including OCT4, NANOG, NR5A2 and GDF3, while concomitantly repressing genes required for ESC differentiation. Remarkably, this isoform also promotes the maintenance of ESC pluripotency and the efficient reprogramming of somatic cells to induced pluripotent stem cells. These results thus reveal that an AS switch plays a pivotal role in the regulation of pluripotency and functions by controlling critical ESC-specific transcriptional programs. To identify genes potentially directly regulated by FOXP1-ES and FOXP1 in H9 ESCs, we performed chromatin immunoprecipitation followed by high-throughput sequencing (ChIP-Seq). Using an antibody capable of efficiently immunoprecipitating both isoforms, >3400 significant ChIP-Seq peaks were detected across the human genome. To assess if these peaks are sites of FOXP1 and FOXP1-ES occupancy, we determined whether they are significantly enriched in individual PBM-derived 8-mers that bind to either or both isoforms.
2011-09-14 | E-GEOD-31006 | biostudies-arrayexpress
Project description:Gata5 efficiently promotes cardiomyocyte fate from murine ESCs.By removing serum from the culture conditions, GATA4 and GATA6 are each also able to efficiently promote cardiogenesis in ESC derivatives, with some distinctions. Thus, GATA factors can function in ESC derivatives upstream of other cardiac transcription factors to direct specification of progenitors with cardiac potential. We used microarray to compared the global gene expression of Gata5-induced cardiac cells with other growth factor directed ESC-derived cardiac cells iGata5 ESCs were induced with doxycycline at day 4 and harvested at day16 for RNA extraction and hybridization on Affymetrix microarrays.
2013-02-02 | E-GEOD-43831 | biostudies-arrayexpress
Project description:We reported loss of ARID1A promoted neurogenesis and inhibited cardiogenesis. Under microscopy, we observed that spontaneously differentiated cells were induced in ARID1A KO H9 hESCs cultured in mTesR medium. After cardiac differentiation for 10 days, we also observed the cell types were totally different between WT and ARID1A KO cells. We did not know what cells types were. Here scRNA-seq were used to identify the cell types in WT H9 hESCs and ARID1A KO H9 hESCs.
2020-06-19 | GSE139342 | GEO
Project description:Two major goals for regenerative medicine are to reproducibly transform adult somatic cells into a pluripotent state and to control their differentiation into specific cell fates. These goals could be furthered by obtaining a complete picture of the RNA isoforms produced by these cells due to alternative splicing (AS) and alternative promoter selection (APS). To investigate the roles of AS and APS, reciprocal exon-exon junctions were interrogated on a genome-wide scale in differentiating mouse embryonic stem cells (ESCs), mouse myometrium throughout gestation and cardiac remodeling with disease using a prototype Affymetrix microarray. Using a custom analysis package named AltAnalyze (http://www.AltAnalyze.org), we identified a large number of putative AS and APS events, the majority of which were predicted to alter protein sequence and domain composition. Over a dozen AS and APS events were validated in mouse ESCs with differentiation to embryoid bodies. Alternative splicing analysis of mouse tissue differentiation, disease and developmental remodeling paradigms.
2009-07-10 | E-GEOD-17021 | biostudies-arrayexpress
Project description:In vitro cardiac differentiation of human ESCs recapitulates in vivo embryonic heart development, and thus, serves as an excellent tool to investigate human cardiac development. Identification of molecular signatures during cardiac differentiation of human ESCs is instrumental for advancing our understanding of human cardiogenesis. We, as well as others have improved cardiac differentiation protocols significantly in recent years; however, detailed molecular mechanisms involved in cardiac lineage commitment have not yet been clearly defined. Based on this, we tried to identify the cellular hierarchies and molecular signatures of each of the in vitro human ESC-differentiating cardiac cell lineages through the well-established cardiac differentiatio protocol by Wnt signaling modulation and the FACS-sorted population RNA-seq analyses.
2019-03-31 | E-MTAB-7537 | biostudies-arrayexpress
Project description:We have generated stable human ESCs (H9) expressing control or DAP5-targeting shRNA. Polysome profiles reveal no major changes in overall translation. PolyA+ RNA and RNA accociated with heavy polysomal fractions were purified in biological duplicates and sequenced using Illumina HiSeq 2000 instrument. We identified 122 potential mRNA targets of DAP5 translation that display reduced ribosomal loading, and hence reduced translation, in the absence of DAP5.
2016-09-14 | GSE80467 | GEO
Project description:PTBP1 and PTBP2 control alternative splicing programs during neuronal development, but the cellular functions of most PTBP1/2-regulated isoforms remain unknown. We show that PTBP1 guides developmental gene expression by regulating the transcription factor Pbx1. We identify exons that are differentially spliced when mouse embryonic stem cells (ESCs) differentiate into neuronal progenitor cells (NPCs) and neurons, and transition from PTBP1 to PTBP2 expression. We define those exons controlled by PTBP1 in ESCs and NPCs by RNA-seq analysis after PTBP1 depletion and PTBP1 crosslinking-immunoprecipitation. We find that PTBP1 represses Pbx1 exon 7 and the expression of its neuronal isoform Pbx1a in ESC. Using CRISPR-Cas9 to delete regulatory elements for exon 7, we induce Pbx1a expression in ESCs, finding that this activates transcription of specific neuronal genes including known Pbx1 targets. Thus PTBP1 controls the activity of Pbx1 and suppresses its neuronal transcriptional program prior to differentiation. HB9-GFP mESCs were differentiated into mNPCs and mMNs. Poly-A RNA was isolated from isolated populations of mESCs, mNPCs, and mMNs for RNA-sequencing and splicing analyses.
2016-07-03 | E-GEOD-71079 | biostudies-arrayexpress
Project description:PTBP1 and PTBP2 control alternative splicing programs during neuronal development, but the cellular functions of most PTBP1/2-regulated isoforms remain unknown. We show that PTBP1 guides developmental gene expression by regulating the transcription factor Pbx1. We identify exons that are differentially spliced when mouse embryonic stem cells (ESCs) differentiate into neuronal progenitor cells (NPCs) and neurons, and transition from PTBP1 to PTBP2 expression. We define those exons controlled by PTBP1 in ESCs and NPCs by RNA-seq analysis after PTBP1 depletion and PTBP1 crosslinking-immunoprecipitation. We find that PTBP1 represses Pbx1 exon 7 and the expression of its neuronal isoform Pbx1a in ESC. Using CRISPR-Cas9 to delete regulatory elements for exon 7, we induce Pbx1a expression in ESCs, finding that this activates transcription of specific neuronal genes including known Pbx1 targets. Thus PTBP1 controls the activity of Pbx1 and suppresses its neuronal transcriptional program prior to differentiation. 46C mESCs and mNPCs were cross-linked at 100 mJ/cm2. Cell pellets were collected and flash-frozen for iCLIP library preparation. Libraries were subjected to 100 single-end RNA-sequencing.
2016-07-03 | E-GEOD-71178 | biostudies-arrayexpress
Project description:PTBP1 and PTBP2 control alternative splicing programs during neuronal development, but the cellular functions of most PTBP1/2-regulated isoforms remain unknown. We show that PTBP1 guides developmental gene expression by regulating the transcription factor Pbx1. We identify exons that are differentially spliced when mouse embryonic stem cells (ESCs) differentiate into neuronal progenitor cells (NPCs) and neurons, and transition from PTBP1 to PTBP2 expression. We define those exons controlled by PTBP1 in ESCs and NPCs by RNA-seq analysis after PTBP1 depletion and PTBP1 crosslinking-immunoprecipitation. We find that PTBP1 represses Pbx1 exon 7 and the expression of its neuronal isoform Pbx1a in ESC. Using CRISPR-Cas9 to delete regulatory elements for exon 7, we induce Pbx1a expression in ESCs, finding that this activates transcription of specific neuronal genes including known Pbx1 targets. Thus PTBP1 controls the activity of Pbx1 and suppresses its neuronal transcriptional program prior to differentiation.
2016-01-01 | GSE71178 | GEO