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Histone demethylase UTX regulates differentiation, mineralization, and homeostasis in osteoblast and osteoclast interation

ABSTRACT: This study is the first indicated that osteoblast-specific UTX deficiency adverse to bone tissue integrity and increase osteoporosis development.

ORGANISM(S): Mus musculus

PROVIDER: GSE143464 | GEO | 2024/01/10

REPOSITORIES: GEO

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Alternative mRNA splicing controls functions of the human H3K27 demethylase UTX/KDM6A

Project description:The UTX/KDM6A gene encodes the UTX histone H3K27 demethylase, which plays an important role in mammalian development and is frequently mutated in cancers and particularly, in urothelial cancers. Using BioID technique, we explored the interactome of different UTX isoforms.

2024-01-28 | PXD041254 | Pride

Effect of polyphosphates on osteoblast mineralization

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Project description:Immunoprecipitation of Utx followed by mass spectrometry analysis to identify Utx binding partners in mouse myeloid progenitor cells.

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2020-11-08 | GSE148203 | GEO

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Mechanical sensing protein PIEZO1 regulates bone homeostasis via osteoblast-osteoclast crosstalk

Project description:Wolff’s law and the Utah Paradigm of skeletal physiology state that bone architecture adapts to mechanical loads. These models predict the existence of a mechanostat that links strain induced by mechanical forces to skeletal remodeling. However, how the mechanostat influences bone remodeling remains elusive. Here, we find that Piezo1 deficiency in osteoblastic cells leads to loss of bone mass and spontaneous fractures with increased bone resorption. Furthermore, Piezo1-deficient mice are resistant to further bone loss and bone resorption induced by hind limb unloading, demonstrating that PIEZO1 can affect osteoblast-osteoclast crosstalk in response to mechanical forces. At the mechanistic level, in response to mechanical loads, PIEZO1 in osteoblastic cells controls the YAP-dependent expression of type II and IX collagens. In turn, these collagen isoforms regulate osteoclast differentiation. Taken together, our data identify PIEZO1 as the major skeletal mechanosensor that tunes bone homeostasis.

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The H3K27 demethylase Utx facilitates somatic and germ cell epigenetic reprogramming to pluripotency

Project description:This SuperSeries is composed of the following subset Series: GSE35775: The H3K27 demethylase Utx facilitates somatic and germ cell epigenetic reprogramming to pluripotency [Affymetrix gene expression] GSE37821: The H3K27 demethylase Utx facilitates somatic and germ cell epigenetic reprogramming to pluripotency [ChIP-Seq] Refer to individual Series

2012-05-29 | E-GEOD-37822 | biostudies-arrayexpress

The H3K27 demethylase Utx facilitates somatic and germ cell epigenetic reprogramming to pluripotency [ChIP-Seq]

Project description:Pluripotency can be induced in somatic cells by ectopic expression of defined transcription factors, however the identity of epigenetic regulators driving the progression of cellular reprogramming requires further investigation. Here we uncover a non-redundant role for the JmjC-domain-containing protein histone H3 methylated Lys 27 (H3K27) demethylase Utx, as a critical regulator for the induction, but not for the maintenance, of primed and naM-CM-/ve pluripotency in mice and in humans. Utx depletion results in aberrant H3K27me3 repressive chromatin demethylation dynamics, which subsequently hampers the reactivation of pluripotency promoting genes during reprogramming. Remarkably, Utx deficient primordial germ cells (PGCs) display a cell autonomous aberrant epigenetic reprogramming in vivo during their embryonic maturation, resulting in the lack of functional contribution to the germ-line lineage. H3K27me3 and H3K4me3 were measured genome-wide in the following cell types: Utx+/Y (WT) and Utx-/Y (KO) mouse ES cells and mouse embryonic fibroblast (MEF) before and after DOX induction (initiating reprogramming by OSKM factors).

2012-05-30 | E-GEOD-37821 | biostudies-arrayexpress

The H3K27 demethylase Utx facilitates somatic and germ cell epigenetic reprogramming to pluripotency [Affymetrix gene expression]

Project description:Pluripotency can be induced in somatic cells by ectopic expression of defined transcription factors, however the identity of epigenetic regulators driving the progression of cellular reprogramming requires further investigation. Here we uncover a non-redundant role for the JmjC-domain-containing protein histone H3 methylated Lys 27 (H3K27) demethylase Utx, as a critical regulator for the induction, but not for the maintenance, of primed and naM-CM-/ve pluripotency in mice and in humans. Utx depletion results in aberrant H3K27me3 repressive chromatin demethylation dynamics, which subsequently hampers the reactivation of pluripotency promoting genes during reprogramming. Remarkably, Utx deficient primordial germ cells (PGCs) display a cell autonomous aberrant epigenetic reprogramming in vivo during their embryonic maturation, resulting in the lack of functional contribution to the germ-line lineage. Samples include UTX+/Y (WT) and UTX-/Y (KO) cells from mouse ES cells and mouse embryonic fibroblast (MEF) before and after DOX induction (initiating reprogramming by OSKM factors). One sample is OSKM-induced Nanog-/- fibroblasts.

2012-05-29 | E-GEOD-35775 | biostudies-arrayexpress

Deletion of UTX, a histone demethylase interacting with MLL2, in three patients with Kabuki syndrome.

Project description:Kabuki syndrome (KS) is a rare multiple congenital anomalies/mental retardation (MCA/MR) syndrome described in 19811,2. In 2010, exome sequencing identified MLL2 mutations in patients with KS3. Since then, 5 studies identified a mutation in MLL2 in 56-75,6% of KS patients3-7. Here, we describe 2 KS and 1 KS-like patient with a de novo partial or complete deletion of UTX, a histone demethylase interacting with MLL2 in gene regulation. UTX locates on the X chromosome and we showed that the X chromosome with the deleted copy of UTX is preferentially inactivated despite the fact that UTX escapes X-inactivation. This study unveiled deletion of UTX as a second cause of KS and highlights the growing role of histone methylase/demethylase in MCA/MR syndrome. Two patients were analysed by Agilent array CGH 244K (AMADID: 014693) Three patients DNA were analyzed by CGH on custom targeted array 44K (AMADID: 032482). Two of them were initially analyzed using 244K Whole genome Arrays (AMADID: 014693). One third patient was selected given suspicion of deletion in one of the targeted gene (KDM6A) as amplification of some exons performed in our lab to sequence this gene failed.

2012-01-01 | E-GEOD-32567 | biostudies-arrayexpress

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