GEO DataSets

(Submitter supplied) Senescence is a stress responsive form of stable cell cycle exit. Senescent cells have a distinct gene expression profile, which is often accompanied by the spatial redistribution of heterochromatin into senescence-associated heterochromatic foci (SAHFs). Studying a key component of the nuclear lamina, lamin B1 (LMNB1), we report dynamic alterations in its genomic profile and their implications for SAHF formation and gene regulation during senescence. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL11154

18 Samples

Download data: BED

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by array; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL10999 GPL11154 GPL570

27 Samples

Download data: BW, CEL

(Submitter supplied) Cellular senescence is a stable proliferation arrest in response to stress, associated with an altered secretory pathway (Senescence Associated Secretory Phenotype (SASP)). Senescence-associated proliferation arrest and the SASP are thought to act in concert to promote tumor suppression and tissue aging. While chromatin regulation and down regulation of lamin B1 have been implicated as effectors of cell senescence, functional interactions between them are poorly understood. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

10 Samples

Download data: CEL

(Submitter supplied) Cellular senescence is a stable proliferation arrest in response to stress, associated with an altered secretory pathway (Senescence Associated Secretory Phenotype (SASP)). Senescence-associated proliferation arrest and the SASP are thought to act in concert to promote tumor suppression and tissue aging. While chromatin regulation and down regulation of lamin B1 have been implicated as effectors of cell senescence, functional interactions between them are poorly understood. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL10999 GPL11154

17 Samples

Download data: BED, BW

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL18573 GPL24676

21 Samples

Download data: BED, BIGWIG, SF

(Submitter supplied) Overexpression of Lamin B1 leads to the redistribution of H3K9me3 heterochromatin away from the nuclear periphery and into heterochromatic DNA foci within the nucleoplasm. These changes in chromatin organization correlate with misregulated gene expression (mRNA-sequencing), but do not correlate with altered H3K9me3 deposition across the genome (Cut&Run).

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18573

9 Samples

Download data: BED, BIGWIG

(Submitter supplied) Overexpression of Lamin B1 leads to the redistribution of H3K9me3 heterochromatin away from the nuclear periphery and into heterochromatic DNA foci within the nucleoplasm. These changes in chromatin organization correlate with misregulated gene expression (mRNA-sequencing), but do not correlate with altered H3K9me3 deposition across the genome (Cut&Run).

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24676

12 Samples

Download data: SF

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by array; Genome binding/occupancy profiling by high throughput sequencing

4 related Platforms

62 Samples

Download data

(Submitter supplied) The expansion of repressive epigenetic marks has been implicated in heterochromatin formation during embryonic development, but the general applicability of this mechanism is unclear. Here we show that nuclear rearrangement of repressive histone marks H3K9me3 and H3K27me3 into non-overlapping structural layers characterizes senescence-associated heterochromatic foci (SAHF) formation in human fibroblasts. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL9115 GPL10999 GPL11154

52 Samples

Download data: BED

(Submitter supplied) The expansion of repressive epigenetic marks has been implicated in heterochromatin formation during embryonic development, but the general applicability of this mechanism is unclear. Here we show that nuclear rearrangement of repressive histone marks H3K9me3 and H3K27me3 into non-overlapping structural layers characterizes senescence-associated heterochromatic foci (SAHF) formation in human fibroblasts. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6947

10 Samples

Download data: TXT

(Submitter supplied) The nuclear lamina interacts with the genome through megabase-size lamina-associated domains (LADs). LADs have been identified in proximity labeling assays and recently by chromatin immunoprecipitation-sequencing (ChIP-seq) of A- and B-type lamins. LADs localize mainly to the nuclear periphery, they are gene-poor and largely heterochromatic. Here, we show that the mode of chromatin fragmentation for ChIP, namely either bath sonication (used to date for ChIP of nuclear lamins) or digestion with micrococcal nuclease (MNase) leads to the discovery of distinct sets of lamin-interacting domains (which we refer to as LiDs) with distinct gene content, histone composition enrichment and relationship to lamin B1-interacting domains. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL16791

5 Samples

Download data: BED

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing; Expression profiling by high throughput sequencing

Platform:

GPL16791

7 Samples

Download data: BED, CSV

(Submitter supplied) Nuclear lamins contact the genome at the nuclear periphery through large domains and are involved in chromatin organization. Among broad peak calling algorithms available to date, none are suited for mapping lamin-genome interactions genome-wide. We disclose a novel algorithm, Enriched Domain Detector (EDD), for analysis of broad enrichment domains from ChIP-seq data. EDD enables discovery of genomic domains interacting with broadly distributed chromatin-associated proteins such as lamins. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16791

2 Samples

Download data: CSV

(Submitter supplied) Nuclear lamins contact the genome at the nuclear periphery through large domains and are involved in chromatin organization. Among broad peak calling algorithms available to date, none are suited for mapping lamin-genome interactions genome-wide. We disclose a novel algorithm, Enriched Domain Detector (EDD), for analysis of broad enrichment domains from ChIP-seq data. EDD enables discovery of genomic domains interacting with broadly distributed chromatin-associated proteins such as lamins. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL16791

5 Samples

Download data: BED

(Submitter supplied) In most mammalian cell lines, chromatin located at the nuclear periphery is represented by condensed heterochromatin as observed by both microscopy observations and DamID mapping of lamina-associated domains (LADs), enriched in dimethylated Lys9 of histone H3 (H3K9me2). In Drosophila Kc167 cell culture, where LADs were only mapped to the moment, they are neither H3K9me2-enriched, nor overlap with the domains of Heterochromatin Protein 1a (HP1a). more...

Organism:

Drosophila melanogaster

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13304

16 Samples

Download data: BEDGRAPH

(Submitter supplied) We have used microarrays to identify LaminB1 occupancy signal in AML12 cell using the DamID protocol.

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL10448

4 Samples

Download data: TXT

(Submitter supplied) While, transcriptional and epigenetic changes associated senescence processes are well studied, the 3D chromatin changes associated with it remains elusive. In this study, we have generated genome wide chromatin interaction maps (Hi-C), epigenetic (ChIP-Seq), replication-timing and gene expression (RNA-Seq) profiles from replication induced (RS) and oncogene induced (OIS) senescent cells. As senescence associated heterochromatin foci (SAHFs) differentiates both RS and OIS nuclei, we identified the regions that constitute SAHFs and called them Senescence Associated Heterochromatin Domains (SAHDs). more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing; Expression profiling by high throughput sequencing; Other; Methylation profiling by high throughput sequencing

Platform:

GPL11154

92 Samples

Download data: BED, BW, TAR, TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

28 Samples

Download data: BED, BW, TXT

(Submitter supplied) Lamins are components of the peripheral nuclear lamina and interact with heterochromatic genomic regions, termed lamina-associated domains (LADs). In contrast to lamin B1, lamin A/C also localizes throughout the nucleus, where it associates with the chromatin-binding protein lamina-associated polypeptide (LAP) 2alpha. Here we show lamin A/C also interacts with euchromatin, as determined by chromatin immunoprecipitation analyses of eu- and heterochromatin-enriched samples. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

4 Samples

Download data: TXT

(Submitter supplied) Lamins are components of the peripheral nuclear lamina and interact with heterochromatic genomic regions, termed lamina-associated domains (LADs). In contrast to Lamin B11, lamin A/C also localizes throughout the nucleus, where it associates with the chromatin-binding protein lamina-associated polypeptide (LAP) 2alpha. Here we show lamin A/C also interacts with euchromatin, as determined by chromatin immunoprecipitation analyses of eu- and heterochromatin-enriched samples. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

24 Samples

Download data: BED, BW