GEO DataSets

Analysis of C10 pre-B cells transduced with a vector for HDAC7 expression then treated with β-estradiol to induce transdifferentiation into macrophages for up to 72 hr. Dysregulated HDAC activity is associated with B cell malignancies. Results provide insight into role of HDAC7 in B lymphopoiesis.

Organism:

Mus musculus

Type:

Expression profiling by array, transformed count, 2 agent, 2 genotype/variation, 3 time sets

Platform:

GPL11180

Series:

GSE36827

12 Samples

Download data: CEL

(Submitter supplied) In the immune system HDAC7 is expressed in T cells where it regulates the expression of key genes for T cell development and function. Here we report that HDAC7 is also highly expressed in B cell precursors, where it is recruited by MEF2C to repress the activity of key genes for myeloid cell function. While HDAC7 is down-regulated during the conversion of pre-B cells into macrophages, re-expression of HDAC7 interferes with both the acquisition of the myeloid gene transcriptional program and macrophage specific cell functions. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS5675

Platform:

GPL11180

12 Samples

Download data: CEL

(Submitter supplied) B lymphocyte development is a complex process tightly controlled at the transcriptional level by the action of networks of transcription factors. The repression of genes from alternative lineages is necessary to ensure the acquisition of the correct B cell identity. However, the mechanisms of transcriptional repression during B cell generation are largely unknown. Here, using a conditional knockout mouse model, we show that the histone deacetylase HDAC7 is essential for B cell development. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL11180

6 Samples

Download data: CEL

(Submitter supplied) Earlier work has shown that pre-B cells can be converted into macrophages by the transcription factor C/EBP? at very high frequencies. Using this system we have now performed a systematic analysis of the question whether during transdifferentiation the cells transiently reactivate progenitor restricted genes or even retrodifferentiate. A transcriptome analysis of transdifferentiating cells showed that most genes are continuously up or downregulated, acquiring a macrophage phenotype within 5 days. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

12 Samples

Download data: CEL

(Submitter supplied) 18 different population of cells in different developmental stages in hematopoietic hierarchy have been purifyed by FACS analyses from wild type C57Bl6 mice and subjected to Micrroarray Affymetrix mouse 430.2 platform We used microarrays to compare global expression pattern in different hematopoietic cell populations to reconstruct the whole hierarchy of hematopoietic tree based on gene profiling Keywords: Hematopoietic Development

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

47 Samples

Download data: CEL

(Submitter supplied) Mature lymphoid cells express the transcriptional repressor Bach2, which imposes regulation on humoral and cellular immunity. Here we found critical roles for Bach2 in the development of cells of the B lineage, commencing from the common lymphoid progenitor (CLP) stage, with Bach1 as an auxiliary. Overexpression of Bach2 in pre-pro-B cells deficient in the transcription factor EBF1 and single-cell analysis of CLPs revealed that Bach2 and Bach1 repressed the expression of genes important for myeloid cells (‘myeloid genes’). more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL13912

21 Samples

Download data: TXT

(Submitter supplied) Tet2 is an enzyme that hydroxylates methylated cytosines and has been implicated in hematopoietic differentiation and the formation of myeloid malignancies when mutated. An ideal system to study the role of Tet2 in myelopoeisis is C/EBPa induced transdifferentiation of pre-B cells into macrophages, where many myeloid genes become rapidly upregulated. Here we found that C/EBPa binds to upstream regions of Tet2 and that the gene becomes activated. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10333

8 Samples

Download data: TXT

(Submitter supplied) Histone deacetylase 7 (HDAC7) is highly expressed in CD4+/CD8+ thymocytes and functions as a signal-dependent repressor of gene transcription during T cell development. In this study, we express HDAC7 mutant proteins in a T cell line and use DNA microarrays to identify transcriptional targets of HDAC7 in T cells. Gene expression changes are compared to differential gene expression profiles associated with positive and negative thymic selection. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL5064

74 Samples

Download data: GPR

(Submitter supplied) Retroviral transduction of Pax5-deficient pro/preB cell lines with a doxycycline-inducible (TetON) form of the human Pax5 (huPax5) gene yielded cell clones which could be induced to different levels of huPax5 expression. Clones inducible to high levels developed B220+/CD19/+IgM+ B cells, while clones with low levels differentiated to B220+/CD19- /CD11b+/Gr-1- B-lymphoid/myeloid “bi-phenotypic” cells in vitro and in vivo. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL2872

8 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL21273

20 Samples

Download data

(Submitter supplied) The establishment of proper epigenomic landscape is essential during B lymphocyte development in order to acquire a correct B cell identity at each cellular differentiation stage. We previously identified HDAC7 as a critical regulator of early B cell development. Its absence indeed led to the aberrant activation of inappropriate lineage genes, a reduction of proliferation and an increase in cell apoptosis. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL21273

12 Samples

Download data: BW

(Submitter supplied) The establishment of proper epigenomic landscape is essential during B lymphocyte development in order to acquire a correct B cell identity at each cellular differentiation stage. We previously identified HDAC7 as a critical regulator of early B cell development. Its absence indeed led to the aberrant activation of inappropriate lineage genes, a reduction of proliferation and an increase in cell apoptosis. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL21273

8 Samples

Download data: BW

(Submitter supplied) Correct B cell identity at each stage of cellular differentiation during B lymphocyte development is critically dependent on a tightly controlled epigenomic landscape. We previously identified HDAC7 as an essential regulator of early B cell development and its absence leads to a drastic block at the pro-B to pre-B cell transition. More recently, we demonstrated that HDAC7 loss in pro-B-ALL in infants associates with a worse prognosis. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL28457

8 Samples

Download data: TXT

(Submitter supplied) B lymphopoiesis is the result of several cell lineage choices and differentiation steps whose perturbation leads to B cell malignancies. Cellular transitions for B cell generation have been associated with gene activation and silencing by networks of B cell specific transcription factors (TFs) and dynamic changes in DNA methylation. How gene repression is established and which lineage-specific transcriptional repressors are involved during B cell lymphopoiesis are still not totally understood. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL19057

8 Samples

Download data: BED, BW

(Submitter supplied) The bHLH transcription factor stem cell leukemia gene (Scl) is a master regulator for hematopoiesis essential for hematopoietic specification and proper differentiation of the erythroid and megakaryocyte lineages. However, the critical downstream targets of Scl remain undefined. Here, we identified a novel Scl target gene, transcription factor myocyte enhancer factor 2 C (Mef2C) from Sclfl/fl fetal liver progenitor cell lines. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

7 Samples

Download data: CEL

(Submitter supplied) Ikaros is an essential regulator of lymphopoiesis. Here, we studied the B-cell-specific function of Ikaros by conditional Ikzf1 inactivation in pro-B cells. B-cell development was arrested at an aberrant ‘pro-B’ cell stage characterized by increased cell adhesion and loss of pre-B cell receptor signaling. Ikaros was found to activate genes coding for pre-BCR signal transducers and to repress genes involved in the downregulation of pre-BCR signaling and upregulation of the integrin signaling pathway. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL11002 GPL13112

48 Samples

Download data: BW, TXT

(Submitter supplied) To identify nez putative transcriptionnal regulations controlling the specification of B cell and Macrophage, we performed ChIPSeq in a pre-B cell line containing an inducible form of the transcription factor C/EBPa (C10). We performed ChIP-seq against Foxo1 in uninduced b cell, and for Ebf1 in uninduced or after several times of C/EBPa induction.

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

5 Samples

Download data: BW

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18573

18 Samples

Download data: BIGWIG, TXT

(Submitter supplied) Purpose: We performed RNA-seq differential expression analysis after 72h HDAC1 and HDAC7 knockdown in order to evaluate the transcriptional regulation exerted by HDAC1 and HDAC7 in a stem-like (BPLER) vs. non-stem (HMLER) breast cancer (BrCa) cell model (please search for keywords "BPLER" or "HMLER" in GEO to access over 240 associated data sets). Results: HDAC7 knockdown by a pool of siRNAs resulted in altered expression of nearly three times the genes in BPLER vs. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

14 Samples

Download data: TXT

(Submitter supplied) We sought to investigate the effects of HDAC1 and HDAC7 inhibition on genome-wide histone 3 lysine 27 acetylation (H3K27ac) in BPLER cells, a stem-like breast cancer (BrCa) cell model (please search for keyword "BPLER" in GEO to access over 30 associated datasets). Treatment of BPLER cells with MS-275 (Entinostat), a HDAC1 and HDAC3 specific inhibitor, specifically downregulates HDAC7 mRNA and protein. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18573

4 Samples

Download data: BIGWIG, TXT