GSE113191 CTCF boundary remodels chromatin domain and drives aberrant HOX gene transcription in acute myeloid leukemia

Contributors : Suming Huang ; Huacheng LuoSeries Type : Expression profiling by high throughput sequencing ; Genome binding/occupancy profiling by high throughput sequencing ; OtherOrganism : Homo sapiensWe analyzed RNA-seq, ATAC-seq, ChIP-seq and 4C-seq data to find that CTCF binding site located between HOXA7 and HOXA9 genes (CBS7/9) is critical for establishing and maintaining aberrant HOXA9-HOXA13 gene expression in AML. Disruption of the CBS7/9 boundary resulted in spreading of repressive H3K27me3 into the posterior active HOXA chromatin domain that subsequently impaired enhancer/promoter chromatin accessibility and disrupted ectopic long-range interactions among the posterior HOXA genes. Consistent with the role of the CBS7/9 boundary in HOXA locus chromatin organization, attenuation of the CBS7/9 boundary function reduced posterior HOTTIP lincRNA and HOXA gene expression and altered myeloid specific transcriptome profiles important for pathogenesis of myeloid malignancies.
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Genome binding/occupancy profiling by high throughput sequencing Other Homo sapiens Source Type: research