E-GEOD-68958
Ontology highlight
ABSTRACT:
OTHER RELATED OMICS DATASETS IN: PRJNA284161
PROVIDER: E-GEOD-68958 | ExpressionAtlas | 2019-05-14
REPOSITORIES: ExpressionAtlas
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| E-GEOD-68958-analysis-methods.tsv | Tabular | |||
| E-GEOD-68958-analytics.tsv | Tabular | |||
| E-GEOD-68958-analytics.tsv.undecorated | Tabular | |||
| E-GEOD-68958-analytics.tsv.undecorated.unrounded | Tabular | |||
| E-GEOD-68958-analytics.tsv.unrounded | Tabular |
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Project description:RUNX1B expression distinguishes megakaryocytic and erythroid lineage fate in adult hematopoiesis
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Project description:<p> <ol> <li>Implement an efficient, highly reproducible and 'scalable' system for the production of large numbers of sickle cell anemia-specific iPS cells (iPSC).</li> <li>Derive and characterize a novel, in vitro system for the production of an unlimited supply of erythroid lineage cells from the directed differentiation of 'clinical grade' transgene-free iPS cells; use this system to recapitulate erythroid-lineage ontogeny in vitro with the sequential development of primitive and definitive erythropoiesis, accompanied by the appropriate expression of stage-specific globin genes.</li> <li>Identify developmental gene expression profile differences between erythroid precursors that produce primarily HbF and those that produce primarily HbA or HbS.</li> <li>Determine the effects of the three known HbF major quantitative trait loci (QTL) on globin gene expression in disease-specific iPS cells during in vitro erythropoiesis.</li> <li>Search for novel HbF genetic modifiers associated with markedly elevated HbF levels found in sickle cell anemia patients naturally, or in response to hydroxyurea treatment, by examining gene expression profiles and mRNA sequence of their iPSC-derived erythroid cells.</li> <li>Develop and use a CRISPR-based gene editing platform to study the effect of novel HbF genetic modifiers, explore globin switching, and correct the HbS mutation in sickle iPSC lines.</li> </ol> </p>
| phs001212 | dbGaP
Project description:In this study, we analyzed the genome-wide miRNAs dynamics that occur during the differentitation of HESCs into the erythroid lineage using high throughput sequencing technology. Undifferentiated HESCs as well as erythroid cells at three developmental stages-ESER (embryonic stage), FLER (fetal stage) and PBER (adult stage) were analyzed.
2017-02-09 | GSE65706 | GEO
Project description:To explore the mechanisms controlling erythroid differentiation and development in human, we analyzed the genome-wide transcription dynamics that occurs during the differentiation of HESCs into the erythroid lineage and development of embryonic to adult erythropoiesis using high throughput sequencing technology. Undifferentiated HESCs as well as erythroid cells at three developmental stages-ESER (embryonic stage), FLER (fetal stage) and PBER (adult stage)-were analyzed. Our findings revealed that the number of expressed genes decreased during the differentiation, while the total expression intensity increased. At the 3 transitions (HESC-ESER, ESER-FLER and FLER-PBER), differential expression of many types of genes was observed at every transition. These differentially expressed genes were involved in maintaining the pluripotency of stem cells, early erythroid specification, rapid cell growth and enucleation potential. In addition, differentially expressed genes were found to constitute networks and central nodes at each transition. Clusters of genes in some chromosomal regions switched between expression and silence. We also discovered that differentially expressed genes constituted networks and central nodes of them in each transition. Our studies provide a fundamental basis for further investigation of erythroid differentiation and development. Compare the transcriptome of embryonic stem cells and three erythroid cell types at different developmental stages
2013-10-31 | E-GEOD-32991 | biostudies-arrayexpress
Project description:Mouse embryonic stem (mES) cells can be manipulated ex-vivo to recapitulate the process of erythropoiesis, whereby multipotential haematopoietic stem cells undergo lineage specification, differentiation and maturation to produce functional erythroid cells. Although very useful for identifying specific progenitors and precursors, this cell system has not been fully exploited as a source of cells to analyse erythropoiesis, compared with primary erythroid cells or immortalised cell lines. Here we have established a protocol in which erythroid cells can be isolated in a scalable manner from differentiated embryoid bodies (EBs). Using transcriptional and epigenetic analysis, we show that all purified erythroid cells in this system are derived from the primitive haematopoietic lineage. Finally, we show that this system faithfully recapitulates normal erythropoiesis in the embryonic mouse and fully mimics the effects of natural and engineered mutations seen in full mouse models. Data deposited here comprises chromatin profiling of the EB derived CD71+ erythroid cells; chromatin accessibility (ATAC-Seq), characterisation of the open chromatin by associated histone modifications (ChIP-Seq), chromatin structure (CTCF ChIP-Seq and Capture C interaction data). WT CD71+ cells were compared to either mutant CD71+ cells or other erythroid tissues (mouse adult spleen, E13.5 fetal liver, early embryonic circulating blood) representing both definitve and primitive erythroid lineages.
2021-09-22 | GSE184434 | GEO
Project description:Mouse embryonic stem (mES) cells can be manipulated ex-vivo to recapitulate the process of erythropoiesis, whereby multipotential haematopoietic stem cells undergo lineage specification, differentiation and maturation to produce functional erythroid cells. Although very useful for identifying specific progenitors and precursors, this cell system has not been fully exploited as a source of cells to analyse erythropoiesis, compared with primary erythroid cells or immortalised cell lines. Here we have established a protocol in which erythroid cells can be isolated in a scalable manner from differentiated embryoid bodies (EBs). Using transcriptional and epigenetic analysis, we show that all purified erythroid cells in this system are derived from the primitive haematopoietic lineage. Finally, we show that this system faithfully recapitulates normal erythropoiesis in the embryonic mouse and fully mimics the effects of natural and engineered mutations seen in full mouse models. Data deposited here comprises chromatin profiling of the EB derived CD71+ erythroid cells; chromatin accessibility (ATAC-Seq), characterisation of the open chromatin by associated histone modifications (ChIP-Seq), chromatin structure (CTCF ChIP-Seq and Capture C interaction data). WT CD71+ cells were compared to either mutant CD71+ cells or other erythroid tissues (mouse adult spleen, E13.5 fetal liver, early embryonic circulating blood) representing both definitve and primitive erythroid lineages.
2021-09-22 | GSE184429 | GEO
Project description:Khajuria RK, Munschauer M, Ulirsch JC, Fiorini C, Leif S. Ludwig LS, McFarland SK, Abdulhay NJ, Specht H, Keshishian H, Mani DR, Jovanovic M, Ellis SR, Fulco CP, Engreitz JM, Schütz S, Lian J, Gripp KW,Weinberg OK, Pinkus GS, Gehrke L, Regev A, Lander ES, Gazda HT, Lee WY, Panse VG, Carr SA, Sankaran VG. Cell 2018, 173, 90–103. https://doi.org/10.1016/j.cell.2018.02.036.
Blood cell formation is classically thought to occur through a hierarchical differentiation process, although recent studies have shown that lineage commitment may occur earlier in hematopoietic stem and progenitor cells (HSPCs). The relevance to human blood diseases and the underlying regulation of these refined models remain poorly understood. By studying a genetic blood disorder, Diamond-Blackfan anemia (DBA), where the majority of mutations affect ribosomal proteins and the erythroid lineage is selectively perturbed, we are able to gain mechanistic insight into how lineage commitment is programmed normally and disrupted in disease. We show that in DBA, the pool of available ribosomes is limited, while ribosome composition remains constant. Surprisingly, this global reduction in ribosome levels more profoundly alters translation of a select subset of transcripts. We show how the reduced translation of select transcripts in HSPCs can impair erythroid lineage commitment, illuminating a regulatory role for ribosome levels in cellular differentiation.
2016-10-24 | MSV000080283 | MassIVE
Project description:Hematopoietic stem and progenitor cell (HSPC) formation and lineage differentiation involve gene expression programs orchestrated by transcription factors and epigenetic regulators. Knockdown of the chromatin remodeler chromodomain-helicase-DNA-binding protein 7 (CHD7) expanded phenotypic HSPCs, erythroid, and myeloid lineages in zebrafish and mouse embryos. CHD7 acts to suppress hematopoietic differentiation in a cell autonomous manner in the embryo and adult. We performed gene expression analysis to determine the expression of chd7 in adult sorted HSPC populations. Loss of Chd7 in long term hematopoietic stem cells (LT-HSCs) results in upregulation of genes that function in hematopoietic system development and function. Genes representative of each blood lineage including erythroid, myeloid, and lymphoid were upregulated, suggesting that Chd7 deficiency results in LT-HSCs that are more primed for multilineage differentiation. Together with the physical and genetic interaction, the data support a model in which CHD7 interacts with and modulates Runx1 activity to provide proper timing and function of HSPCs as they emerge during hematopoietic development or mature in adults. This represents a distinct and evolutionarily conserved control mechanism to ensure accurate hematopoietic lineage differentiation. We used microarrays to detail the expression of Chd7 in adult sorted HSPC populations.
2023-01-01 | GSE84127 | GEO
Project description:Acute erythroid leukemia (AEL) most commonly involves transformation of both the myeloid and erythroid lineages. However, the mutations that cause AEL and the nature of the transformed cell that sustains the bi-lineage leukemia phenotype remain unknown. We here show that combined bi-alleCD45.2+LKFcgRII/III+CD55- C/EBPa and GATA-2 zinc finger 1 (ZnF1) mutations are sufficient to induce bi-lineage AEL, and that the leukemia-initiating cell has a Lin–Sca-1–c-Kit+CD150–FcyRII/III+ surface phenotype, consistent with a committed myeloid progenitor. However, we find that in the presence of bi-alleCD45.2+LKFcgRII/III+CD55- C/EBPa mutation this cell population acquires ectopic erythroid gene expression and lineage potential, leading to the formation of neomorphic neutrophil-erythroid lineage progenitors, which upon transformation generate the bi-lineage leukemia-initiating cell. These results identify C/EBPa and GATA-2 ZnF1 mutations as causative of AEL, and demonstrate that transcriptional reprogramming by a leukemia-initiating mutation can re-define the lineage output of the resulting leukemia-initiating cells.
2020-02-24 | GSE141812 | GEO
Project description:MicroRNAs (miRNAs) are small non-coding RNAs (sncRNAs) crucial for post-transcriptional and translational regulation of cellular and developmental pathways. Study of miRNAs in erythropoiesis thus elucidates the process and facilitates diagnosis and therapy development for related disorders. Here, we used high-throughput DNA Nanoball small RNA sequencing to characterise sncRNAs, and in particular miRNAs, comprehensively in human erythroid cell cultures. Based on primary human peripheral-blood-derived CD34+ (hCD34+) cells and on two influential erythroid cell lines with adult and fetal expression patterns, HUDEP-2 and HUDEP-1, respectively, our study links differential expression (DE) to erythroid differentiation, cell type, and fetal and adult hemoglobin expression patterns. Sequencing results were validated by reverse-transcription quantitative PCR (RT-qPCR) of selected DE miRNAs (miR-451a, miR-182-5p, miR-146a-5p, miR-221-3p, miR-222-3p) and indicated overall common erythroid differentiation signatures in primary cells and cell lines, in terminal stages of erythropoiesis characterized by decreased complexity of global miRNA expression and reciprocally increased expression of individual lineage-specific miRNAs. Interestingly, against a backdrop of evident clustering and thus similarity of same-stage hCD34+ and HUDEP-2 cells, differential expression of several miRNAs highlighted readily interpretable discrepancies between both cell types. Moreover, differential expression analysis between the closely related HUDEP-2 and HUDEP-1 cells provided pointers to miRNAs, transcription factors (TFs), target genes, and pathways mechanistically linked to globin switching. In resulting TF-miRNA co-regulatory networks, TFs known to be implicated in hemoglobin switching, including the major γ-globin repressors BCL11A and ZBTB7A, were targeted by many co-regulated miRNAs, outlining intricate combinatorial miRNA regulation of globin expression in erythroid cells.
2021-04-02 | GSE165011 | GEO