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TranscriptomicsGlobal changes in the nuclear positioning of chromatin domains and genomic interactions that orchestrate B cell fate
The genome is folded into domains that are located in either transcriptionally inert or permissive compartments. Here we used genome-wide strategies to characterize domains during B cell development. Structured Interaction Matrix Analysis revealed that CTCF occupancy was primarily associated with i...
ORGANISM(S): Mus musculus 
2012-10-09 | E-GEOD-40173 | biostudies-arrayexpress
GenomicsRemodeling of the enhancer landscape during macrophage activation is coupled to enhancer transcription
Recent studies suggest a hierarchical model in which lineage-determining factors act in a collaborative manner to select and prime cell-specific enhancers, thereby enabling signal-dependent transcription factors to bind and function in a cell type-specific manner. Consistent with this model, TLR4 si...
ORGANISM(S): Mus musculus 
2013-08-09 | E-GEOD-48759 | biostudies-arrayexpress
TranscriptomicsSimple combinations of lineage-determining transcription factors prime cis-regulatory elements required for macrophage and B cell identities
Genome-scale studies have revealed extensive co-localization of transcription factors in a given cell type as well as substantial differences in the binding patterns of specific transcription factors between cell types. Several mechanisms have been proposed to explain these observations, including t...
ORGANISM(S): Mus musculus 
2010-05-27 | E-GEOD-21512 | biostudies-arrayexpress
TranscriptomicsA global network of transcription factors, involving E2A, EBF1 and FOXO1, that orchestrates the B cell fate
It is now established that the transcription factors E2A, EBF1 and FoxoM-BM- 1 play critical roles in B cell development. Here we show that E2A and EBF1 bound regulatory elements present in the Foxo1 locus. E2A and EBF1 as well as E2A and Foxo1, in turn, were wired together by a vast spectrum of cis...
ORGANISM(S): Mus musculus 
2010-06-12 | E-GEOD-21978 | biostudies-arrayexpress
TranscriptomicsMechanisms Establishing TLR4-Responsive Activation States of Inflammatory Response Genes (Illumina sequencing data)
Precise control of the innate immune response is required for resistance to microbial infections and maintenance of normal tissue homeostasis. Because this response involves coordinate regulation of hundreds of genes, it provides a powerful biological system to elucidate the molecular strategies tha...
ORGANISM(S): Mus musculus 
2011-01-01 | E-GEOD-23619 | biostudies-arrayexpress
TranscriptomicsRev-Erbs repress macrophage gene expression by inhibiting enhancer-directed transcription
Rev-Erba and Rev-Erbb are nuclear receptors that regulate the expression of genes involved in the control of circadian rhythm, metabolism, and inflammatory responses. Rev-Erbs function as transcriptional repressors by recruiting NCoR/HDAC3 co-repressor complexes to Rev-Erb response elements in enha...
ORGANISM(S): Mus musculus 
2013-06-05 | E-GEOD-45914 | biostudies-arrayexpress
GenomicsTwo distinct auto-regulatory loops operate at the Pu.1 locus in B cells and myeloid cells
The transcription factor PU.1 occupies a central role in controlling myeloid and early B cell development and its correct lineage-specific expression is critical for the differentiation choice of hematopoietic progenitors. However, little is known of how this tissue-specific pattern is established. ...
ORGANISM(S): Mus musculus 
2011-02-21 | E-GEOD-26550 | biostudies-arrayexpress
TranscriptomicsHuman Promoters Are Intrinsically Directional
Divergent transcription, in which reverse-oriented transcripts occur upstream of eukaryotic promoters in regions devoid of annotated genes, has been suggested to be a general property of active promoters. Here we show that the human basal RNA polymerase II transcriptional machinery and core promoter...
ORGANISM(S): Homo sapiens 
2015-01-16 | E-GEOD-63872 | biostudies-arrayexpress
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