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GenomicsNOTCH1/RBPJ complexes drive target gene expression through dynamic interactions with super-enhancers
The main oncogenic driver in T-lymphoblastic leukemia (T-LL) is NOTCH1, which activates genes by forming chromatin-associated Notch transcription complexes. Gamma-secretase (GSI) inhibitor treatment prevents NOTCH1 nuclear localization, but most genes with NOTCH1 binding sites are insensitive to GSI...
ORGANISM(S): Homo sapiens 
2013-12-27 | E-GEOD-51800 | biostudies-arrayexpress
TranscriptomicsNCI60 Expression Profiling using the Agilent Whole Human Genome Oligo Microarray
We present here a new expression profiling study of the 60 cell lines of the National Cancer Institute (NCI) Developmental Therapeutics program (DTP) drug screen (NCI-60) using the 41,000-probe Agilent Whole Human Genome Oligo Microarray. The expression levels of ∼21,000 genes were measured. The pr...
ORGANISM(S): Homo sapiens 
2010-07-31 | E-GEOD-22821 | biostudies-arrayexpress
TranscriptomicsTranscription poisoning by topoisomerase I is controlled by gene length, splice sites and miR-142-3p
DNA topoisomerase I (Top1) is required for transcription as it relaxes positive and negative supercoils by forming transient Top1 cleavage complexes (Top1cc) up- and down-stream of transcription complexes. However, Top1cc can also be trapped by endogenous DNA lesions and by camptothecin (CPT) and it...
ORGANISM(S): Homo sapiens 
2013-04-17 | E-GEOD-37352 | biostudies-arrayexpress
TranscriptomicsTopoisomerase I cleavage complexes preferentially down-regulate ubiquitin- and RNA degradation-related transcripts in relationship to gene length, exon-intron junctions and p53-dependent up-regulation of miR-142-3p [miRNA]
DNA topoisomerase I (Top1) is required for transcription as it relaxes positive and negative supercoils by forming transient Top1 cleavage complexes (Top1cc) up- and down-stream of transcription complexes. However, Top1cc can also be trapped by endogenous DNA lesions and by camptothecin (CPT) and it...
ORGANISM(S): Homo sapiens 
2013-04-17 | E-GEOD-37357 | biostudies-arrayexpress
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