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Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [Hi-C]

ABSTRACT: Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [Hi-C]

PROVIDER: PRJNA956903 | ENA |

REPOSITORIES: ENA

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Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs

Project description:Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs

| PRJNA956900 | ENA

Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [WGS]

Project description:Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [WGS]

| PRJNA1098735 | ENA

Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [CUT&TAG]

Project description:Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [CUT&TAG]

| PRJNA956905 | ENA

Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [RNA-Seq]

Project description:Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [RNA-Seq]

| PRJNA956904 | ENA

Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [Hi-C]

Project description:Glioblastoma multiforme encompasses a range of brain malignancies marked by phenotypic and transcriptional heterogeneity, which is thought to render these tumors aggressive, resistant to therapy, and inevitably recurrent. However, little is known about how the spatial organization of glioblastoma genomes underlies this heterogeneity and its effects. We compiled a cohort of 28 patient-derived glioblastoma stem-like lines (GSCs) known to reflect the properties of their tumor-of-origin; six of these came from primary-relapse tumor pairs in the same patient. We generated and analyzed kbp-resolution whole-genome chromosome conformation capture (Hi-C) data from all GSCs to systematically map >3,100 structural variants (SVs) and >6,300 neoloops. By combining Hi-C, histone modification, and gene expression data with 3D chromatin folding simulations, we explain how the pervasive, uneven, and idiosyncratic occurrence of neoloops sustains tumor-specific transcriptional programs via the formation of new enhancer-promoter contacts. We also exemplify how neoloops, albeit scarcely recurring, can help us infer potential patient-specific vulnerabilities. Thus, our data serve as a resource for dissecting glioblastoma biology and heterogeneity, as well as for informing therapeutic approaches.

2024-03-19 | GSE229962 | GEO

Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs

Project description:This SuperSeries is composed of the SubSeries listed below.

2024-03-18 | GSE229966 | GEO

Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [WGS]

2024-04-11 | GSE263685 | GEO

Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [CUT&TAG]

2024-03-19 | GSE229964 | GEO

Extreme structural heterogeneity rewires glioblastoma chromosomes to sustain patient-specific transcriptional programs [RNA-Seq]

2024-03-19 | GSE229965 | GEO

Hi-C in D. melanogaster carrying second (CyO) and third (TM3) balancer chromosomes

Project description:We used a Drosophila melanogaster line (a "double balancer") carrying balancer chromosomes for both the second (CyO) and third (TM3) chromosomes, and crossed it to an isogenic wild-type "virginizer" line. Trans-heterozygous adults from the F1 generation were further crossed to the wild-type parental line to obtain the pool of N1 embryos. Allele-specific chromosome conformation capture (Hi-C) was used to measure changes in chromatin organization on both chromosomes.

2019-04-24 | E-MTAB-7512 | biostudies-arrayexpress

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