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Characterization of the role of SETDB1 in Muscle stem cells during skeletal muscle regeneration [RNA-seq]

ABSTRACT: Muscle regeneration is process where different type of cells are interacting together to ensure a proper muscle regeneration. As Muscle stem cells are the central protagonist of muscle regeneration, we performed single cell RNA-seq to observe the change between the different cell types when SETDB1 is absent in Muscle stem cells. Muscle Stem Cells were isolated from the conditional mice model Setdb1-cKO and were isolated by Fluorescence-activated cell sorting (FACS).

ORGANISM(S): Mus musculus

PROVIDER: GSE233394 | GEO | 2024/03/23

REPOSITORIES: GEO

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Characterization of the role of SETDB1 in Muscle stem cells during skeletal muscle regeneration [scRNA-seq]

Project description:Muscle regeneration is process where different type of cells are interacting together to ensure a proper muscle regeneration. As Muscle stem cells are the central protagonist of muscle regeneration, we performed single cell RNA-seq to observe the change between the different cell types when SETDB1 is absent in Muscle stem cells.

2024-03-23 | GSE233395 | GEO

Characterization of the role of SETDB1 in Muscle stem cells during skeletal muscle regeneration [ATAC-seq]

Project description:We are characterizing the rol of an H3K9 histone methyltransferase. As these proteins have the capacity to modulate chromatin, we investigate the chromatin modulation using ATAC-seq Muscle Stem Cells were isolated from the conditional mice model Setdb1-cKO and were isolated by Magnetic-activated cell sorting (MACS) and cultured in vitro

2024-03-23 | GSE233393 | GEO

Canonical Wnt signalling regulates nuclear export of Setdb1 during skeletal muscle terminal differentiation [ChIP-seq]

Project description:The histone 3 lysine 9 (H3K9)-specific methyltransferase (KMT) Setdb1 is essential for both stem cell pluripotency and terminal differentiation of different cell types. To shed light on Setdb1 role(s) in these mutually exclusive processes, we used mouse skeletal myoblasts as a model of terminal differentiation. Ex vivo studies on isolated single myofibres showed that Setdb1 is required for muscle adult stem cells expansion following activation and in vitro studies on skeletal myoblasts confirmed that Setdb1 suppresses terminal myoblast differentiation. We used genome-wide analyses to identify Setdb1 direct target genes in myoblasts and observed a release of Setdb1 from the promoter of selected target genes upon myoblast terminal differentiation, concomitant to a nuclear export of Setdb1 to the cytoplasm. We demonstrated that both genomic release and cytoplasmic Setdb1 relocalisation during differentiation were dependent on canonical Wnt signalling. Taken together, our findings uncover a functional link between Setdb1 and canonical Wnt signalling in skeletal muscle cells, which affects the expression of a subset of Setdb1 target genes. We revealed Wnt-dependent subcellular relocalisation of Setdb1 as a novel mechanism regulating Setdb1 functions. ChIP-seq of Setdb1 and H3K9me3 in Myoblast cells (C2C12)

2016-02-01 | E-GEOD-65493 | biostudies-arrayexpress

Canonical Wnt signalling regulates nuclear export of Setdb1 during skeletal muscle terminal differentiation [ChIP-seq]

2016-02-01 | GSE65493 | GEO

Canonical Wnt signalling regulates nuclear export of Setdb1 during skeletal muscle terminal differentiation

Project description:The histone 3 lysine 9 methyltransferase Setdb1 is essential for both stem cell pluripotency and terminal differentiation of different cell types. To shed light on Setdb1 roles in these mutually exclusive processes, we used mouse skeletal myoblasts as a model of terminal differentiation. Ex vivo studies on isolated single myofibres showed that Setdb1 is required for adult muscle stem cells expansion following activation. In vitro studies in skeletal myoblasts confirmed that Setdb1 suppresses terminal differentiation. Genomic binding analyses showed a release of Setdb1 from selected target genes upon myoblast terminal differentiation, concomitant to a nuclear export of Setdb1 to the cytoplasm. Both genomic release and cytoplasmic Setdb1 relocalisation during differentiation were dependent on canonical Wnt signalling. Transcriptomic assays in myoblasts unravelled a significant overlap between Setdb1 and Wnt3a regulated genetic programs. Together, our findings revealed Wnt-dependent subcellular relocalisation of Setdb1 as a novel mechanism regulating Setdb1 functions and myogenesis. This SuperSeries is composed of the SubSeries listed below.

2016-02-01 | GSE70070 | GEO

Canonical Wnt signalling regulates nuclear export of Setdb1 during skeletal muscle terminal differentiation [RNA-seq]

Project description:The histone 3 lysine 9 methyltransferase Setdb1 is essential for both stem cell pluripotency and terminal differentiation of different cell types. To shed light on Setdb1 roles in these mutually exclusive processes, we used mouse skeletal myoblasts as a model of terminal differentiation. Ex vivo studies on isolated single myofibres showed that Setdb1 is required for muscle adult stem cells expansion following activation. In vitro studies in skeletal myoblasts confirmed that Setdb1 suppresses terminal myoblast differentiation. Genomic binding analyses showed a release of Setdb1 from the promoter of selected target genes upon myoblast terminal differentiation, concomitant to a nuclear export of Setdb1 to the cytoplasm. Both genomic release and cytoplasmic Setdb1 relocalisation during differentiation were dependent on canonical Wnt signalling. Together, our findings revealed Wnt-dependent subcellular relocalisation of Setdb1 as a novel mechanism regulating Setdb1 functions and adult myogenesis.

2016-02-01 | GSE70069 | GEO

Characterization of the role of SETDB1 in Muscle stem cells during skeletal muscle regeneration

Project description:Characterization of the role of SETDB1 in Muscle stem cells during skeletal muscle regeneration

| PRJNA976186 | ENA

Characterization of the role of SETDB1 in Muscle stem cells during skeletal muscle regeneration [ChIP-seq]

Project description:Characterization of the role of SETDB1 in Muscle stem cells during skeletal muscle regeneration [ChIP-seq]

| PRJNA1065801 | ENA

Protracted NP95 binding to hemimethylated DNA disrupts SETDB1-mediated proviral silencing [RNA-seq]

Project description:Genetic ablation of the maintenance methyltransferase Dnmt1 induces widespread demethylation and transcriptional activation of CpG-rich IAP (intracisternal A particle) proviruses. Here, we report that this phenomenon is not simply a consequence of loss of DNA methylation. By exploiting conditional deletions of Dnmt1 and Np95, each of which is essential for maintenance methylation, we find that while IAPs are indeed de-repressed in Dnmt1-ablated embryos and embryonic stem cells (ESCs), these proviruses remain silenced in Np95-ablated cells, despite similar kinetics of passive demethylation. Paradoxically, transient IAP activation in Dnmt1-ablated ESCs requires the presence of NP95. We subsequently show that in the absence of NP95, the H3K9 methyltransferase SETDB1 maintains IAP silencing; while in the absence of DNMT1, prolonged binding of NP95 to hemimethylated DNA perturbs SETDB1-dependent H3K9me3 deposition. Taken together, these observations reveal that following acute loss of Dnmt1, H3K9 methylation-dependent IAP silencing is disrupted by aberrant NP95 binding to hemimethylated DNA. RNA-seq for Np95, Dnmt1 and Setdb1 wt, single conditional KO (cKO) and double cKO ES cells; RRBS-seq for Dnmt1 and Np95 single and double cKO ESCs; Myc-tagged NP95, DNMT1 ChIP-seq; and wt and Np95wt and cKO H3K9me3 ChIP-seq.

2016-04-06 | E-GEOD-77778 | biostudies-arrayexpress

Identification of Setdb1 interaction proteins in neural stem cells

Project description:Setdb1 is an epigenetic factors catalyzing modification of H3K9me3. Expression of its gene is localized to embryonic neural cells during vertebrate embryogenesis, suggesting its role in regulating neural stemness. The project is to identify the interaction partners of Setdb1, by which Setdb1 regulates neural stemness in neural stem cells.

2022-08-12 | PXD030453 | Pride

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