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Setdb1 safeguards genome stability against stem cell necroptosis and bowel inflammation (RNA-seq)

ABSTRACT: Setdb1 safeguards genome stability against stem cell necroptosis and bowel inflammation (RNA-seq)

PROVIDER: PRJNA530393 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8835670.fastq.gz	Fastqsanger.gz
	SRR8835671_1.fastq.gz	Fastqsanger.gz
	SRR8835671_2.fastq.gz	Fastqsanger.gz
	SRR8835672_1.fastq.gz	Fastqsanger.gz
	SRR8835672_2.fastq.gz	Fastqsanger.gz

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SETDB1 safeguards genome stability against necroptosis and bowel inflammation (ChIP-seq)

Project description:The aetiology of bowel inflammatory disease (IBD) is a multifactorial interplay between heredity and environment1-3. Here we report SETDB1, a histone methyltransferase (HMTs) for histone H3 lysine 9 trimethylation (H3K9me3) whose deficiency participates in the pathogenesis of IBD. We found that SETDB1 level decreased in IBD patients and that mice with reduced SETDB1 in intestinal stem cells (ISCs) developed spontaneous terminal ileitis and colitis. SETDB1 safeguards genome stability4, of which the loss in ISCs released repression of endogenous retrovirus (ERVs), the retrovirus-like elements with long repeats that comprise ~8% of genome5. Excessive viral mimicry generated by motivated ERVs triggered Z-DNA-binding protein 1 (ZBP1) dependent necroptosis, which irreversibly disrupted the homeostasis of epithelial barrier and promoted bowel inflammation. Of note, genome instability, reactive ERVs, upregulation of ZBP1 and necroptosis were seen in IBD patients. Pharmaceutic inhibition of RIP3 showed curative effect in SETDB1 deficient mice, suggesting therapy targeting ISC necroptosis may represent a new approach for severe IBD treatment.

2020-01-01 | GSE129173 | GEO

Setdb1 safeguards genome stability against stem cell necroptosis and bowel inflammation (RNA-seq)

2020-01-01 | GSE129172 | GEO

SETDB1 safeguards genome stability against necroptosis and bowel inflammation (ChIP-seq)

Project description:SETDB1 safeguards genome stability against necroptosis and bowel inflammation (ChIP-seq)

| PRJNA530394 | ENA

Setdb1 safeguards genome stability against stem cell necroptosis and bowel inflammation

Project description:Setdb1 safeguards genome stability against stem cell necroptosis and bowel inflammation

| PRJNA530386 | ENA

Nucleoporin Seh1 Maintain Schwann Cell Homeostasis by Regulating Genome Stability and Necroptosis

Project description:Schwann cells play critical roles in peripheral neuropathies, however, the regulatory mechanisms of their homeostasis remain largely unknown. Here we show that nucleoporin Seh1, a component of nuclear pore complex, is important for Schwann cell homeostasis and loss of Seh1 led to necroptosis of non-myelinating Schwann cell and degeneration of sensory neurons. While myelinogenesis, myelinating Schwann cell, and wrapped large fibers were not affected, mice with depletion of Seh1 in Schwann cell lineage developed progressive reduction of non-myelinating Schwann cells in sciatic nerves, followed by the degeneration of unmyelinated small sensory fibers and malfunction of the sensory system. Mechanistically, Seh1 safeguards genome stability by mediating the interaction between SETDB1 and KAP1. The disrupted interaction after ablation of Seh1 derepresses endogenous retroviruses, which triggers ZBP1-dependent necroptosis in non-myelinating Schwann cells. Collectively, our results reveal that Seh1 is required for homeostasis of Schwann cells and suggest that decrease of nucleoporins as aging may participate in the pathogenesis of periphery neuropathies.

2023-01-03 | GSE222015 | GEO

Setdb1 safeguards genome stability against stem cell necroptosis and bowel inflammation

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

2020-01-01 | GSE129174 | GEO

Hypoxia stabilizes SETDB1 to maintain genome stability

Project description:Von Hippel-Lindau (VHL) is a tumor suppressor that functions as the substrate recognition subunit of the CRL2VHL E3 complex. While substrates of VHL have been identified, its tumor suppressive role remains to be fully understood. For further determination of VHL substrates, we analyzed the physical interactome of VHL and identified the histone H3K9 methyltransferase SETBD1 as a novel target. SETDB1 undergoes oxygen-dependent hydroxylation by prolyl hydroxylase domain proteins (PHD) and the CRL2VHL complex recognizes hydroxylated SETDB1 for ubiquitin-mediated degradation. Under hypoxic conditions, SETDB1 accumulates by escaping CRL2VHL activity. Loss of SETDB1 in hypoxia compared with that in normoxia escalates the production of transposable element (TE)-derived double-stranded RNAs (dsRNAs), thereby hyperactivating the immune-inflammatory response. In addition, strong derepression of TEs in hypoxic cells lacking SETDB1 triggers DNA damage-induced death. Our collective results support a molecular mechanism of oxygen-dependent SETDB1 degradation by the CRL2VHL E3 complex and reveal a role of SETDB1 in genome stability under hypoxia.

2024-01-26 | PXD037104 | Pride

SIRT7 safeguards genome stability and suppresses colorectal tumorigenesis

Project description:SIRT7 safeguards genome stability and suppresses colorectal tumorigenesis

| PRJNA575347 | ENA

SETDB1 Represses Endogenous and Exogenous Retroviruses in B Lymphocytes [RNA-Seq]

Project description:Genome stability relies on epigenetic mechanisms that enforce repression of endogenous retroviruses (ERVs). Current evidence suggests that distinct chromatin-based mechanisms repress ERVs in cells of embryonic origin (histone methylation-dominant) versus more differentiated cells (DNA methylation-dominant). However, the latter aspect of this model has not been tested. Remarkably, and in contrast to the prevailing model, we find that repressive histone methylation catalyzed by the enzyme SETDB1 is critical for suppression of specific ERV families and exogenous retroviruses in committed B-lineage cells from adult mice. The profile of ERV activation in SETDB1-deficient B cells is distinct from that observed in corresponding embryonic tissues, despite the loss of repressive chromatin modifications at all ERVs. We provide evidence that, upon loss of SETDB1, ERVs are activated in a lineage-specific manner depending on the set of transcription factors available to target proviral regulatory elements. These findings have important implications for genome stability in somatic cells, as well as the interface between epigenetic repression and viral latency. Expression profiling and bisulfite PCR sequencing in Setdb1 C/C and Setdb1 D/D pro-B cells

2015-07-03 | E-GEOD-69464 | biostudies-arrayexpress

JAK2-CHK2 signaling safeguards the integrity of the mitotic spindle assembly checkpoint and genome stability

Project description:This dataset consists of 1 raw MS file and associated peak list and result file, acquired on an Orbitrap Elite mass spectrometer operated in Data Dependent Acquisition mode. The files are associated with a manuscript submitted for publication. Publication title: "JAK2-CHK2 signaling safeguards the integrity of the mitotic spindle assembly checkpoint and genome stability"

2021-03-31 | MSV000087138 | MassIVE

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