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TranscriptomicsEZH2 is required for germinal center formation and somatic EZH2 mutations promote lymphoid transformation
The EZH2 histone methyltransferase is highly expressed in germinal center (GC) B-cells and targeted by somatic mutations in B-cell lymphomas. Here we find that EZH2 deletion or pharmacologic inhibition suppresses GC formation and functions in mice. EZH2 represses proliferation checkpoint genes and h...
ORGANISM(S): Homo sapiens 
2013-05-13 | E-GEOD-45982 | biostudies-arrayexpress
TranscriptomicsIsolation and functional characterization of the arteriole hematopoietic stem cell niche
Hematopoietic stem cells (HSCs) inhabit distinct microenvironments within the adult bone marrow (BM) that govern the delicate balance between HSC quiescence, self-renewal, and differentiation. It has been suggested that quiescent HSCs localize adjacent to BM arteriole endothelial cells in a signific...
ORGANISM(S): Mus musculus 
2015-11-04 | E-GEOD-61636 | biostudies-arrayexpress
TranscriptomicsA Novel Gene Regulates Vesiculogenesis and Immunomodulation in Mycobacterium tuberculosis
After co-evolving with humans, its only major host, Mycobacterium tuberculosis (Mtb) restrains immune responses well enough to escape eradication, yet elicits enough immunopathology to ensure its transmission. Here, we provide evidence that this balance is regulated in part by a previously uncharact...
ORGANISM(S): Mus musculus 
2013-12-03 | E-GEOD-50050 | biostudies-arrayexpress
GenomicsEpigenomic alterations in localized and advanced prostate cancer
Here we used Illumina NGS for high-throughput profiling of the DNA methylome in seven human benign prostate tissues, seven human primary prostate cancer and six human castration resistant prostate cancer patient samples. These data were used to profile the CpG cytosine methylation pattern at single ...
ORGANISM(S): Homo sapiens 
2013-07-03 | E-GEOD-41701 | biostudies-arrayexpress
TranscriptomicsReprogramming of Endothelium Into Hematopoietic Progenitors by Defined Factors and Vascular Induction
Generation of abundant engraftable hematopoietic cells from autologous tissues promises new therapies for hematologic diseases. Differentiation of pluripotent stem cells into hematopoietic cells results in emergence of cells that have poor engraftment potential. To circumvent this hurdle, we have d...
ORGANISM(S): Homo sapiens 
2014-07-11 | E-GEOD-57662 | biostudies-arrayexpress
GenomicsDNA Methylation Dynamics of Germinal Center B Cells Are Mediated by AID
Changes in DNA methylation are required for the formation of germinal centers (GC), but the mechanisms of such changes are poorly understood. Activation-induced cytidine deaminase (AID) has been recently implicated recently in DNA demethylation through its deaminase activity coupled with DNA repai...
ORGANISM(S): Homo sapiens 
2015-09-15 | E-GEOD-71702 | biostudies-arrayexpress
GenomicsA biochemical basis for toggling enhancers from the active to poised state in B cells
BCL6 is crucial for B-cell activation and lymphomagenesis. We used integrative genomics to explore BCL6 mechanism in normal and malignant B-cells. Surprisingly, BCL6 assembled distinct complexes at enhancers vs. promoters. At enhancers BCL6 preferentially recruited SMRT, which mediated H3K27 deacety...
ORGANISM(S): Homo sapiens 
2013-08-05 | E-GEOD-29282 | biostudies-arrayexpress
TranscriptomicsHistone variant H3.3 is an essential maternal factor for oocyte reprogramming
Mature oocyte cytoplasm can reprogram somatic cell nuclei to the pluripotent state through a series of sequential events including protein exchange between the donor nucleus and ooplasm, chromatin remodeling, and pluripotency gene reactivation. Maternal factors that are responsible for this reprogra...
ORGANISM(S): Mus musculus 
2014-06-02 | E-GEOD-56762 | biostudies-arrayexpress
TranscriptomicsAdipose Rab10 Knockout Causes Insulin Resistance through Impaired Glucose Uptake
Insulin action in adipocytes affects whole-body insulin sensitivity. Studies of adipose-specific Glut4 knockout mice have established that adipose Glut4 contributes to the control of systemic glucose homeostasis. Presumably, this reflects a role for Glut4-mediated glucose transport in the regulation...
ORGANISM(S): Mus musculus 
2016-06-30 | E-GEOD-70123 | biostudies-arrayexpress
TranscriptomicsELAVL1 modulates transcriptome-wide miRNA binding in murine macrophages
Post-transcriptional gene regulation by miRNAs and RNA binding proteins (RBP) is important in development, physiology and disease. To examine the interplay between miRNAs and the RBP ELAVL1 (a.k.a. HuR), we mapped miRNA binding sites on a transcriptome-wide scale in WT and Elavl1 knockout murine bon...
ORGANISM(S): Mus musculus 
2015-04-23 | E-GEOD-63199 | biostudies-arrayexpress
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