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Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin

ABSTRACT: Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin

PROVIDER: PRJNA647296 | ENA |

REPOSITORIES: ENA

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Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin [ChIP-Seq]

Project description:Some cuboidal osteoblasts differentiate into bone-embedded, dendrite-bearing osteocytes through the poorly-understood process of osteocytogenesis. Here, we report that the transcription factor Sp7 plays an essential role in osteocytogenesis. Severe defects in bone integrity and osteocyte dendrite morphology are noted in mice lacking Sp7 at the stage of the osteoblast-to-osteocyte transition. In osteocytes, Sp7 controls expression of a neuronally-enriched gene network. Analysis of the osteocyte-specific Sp7 cistrome reveals distinct genomic binding motifs and target sites distinct from those in osteoblasts. Amongst osteocyte-specific Sp7 targets, the secreted peptide osteocrin rescues Sp7-deficient defects. Single-cell transcriptional profiling of cells undergoing osteocytogenesis identifies novel Sp7-dependent transitional cell types enriched in genes linked to human fracture risk. Finally, humans with an SP7 R316C mutation display osteocyte morphology defects similar to those observed in mouse models. These findings demonstrate that cuboidal osteoblasts use a neuronally-enriched Sp7/osteocrin gene expression program to differentiate into dendrite-bearing osteocytes.

2021-09-20 | GSE154716 | GEO

Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin [scRNA-Seq]

2021-09-20 | GSE154718 | GEO

Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin [RNA-Seq]

2021-09-20 | GSE154717 | GEO

Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin [scRNA-Seq]

Project description:Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin [scRNA-Seq]

| PRJNA647304 | ENA

Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin [RNA-Seq]

Project description:Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin [RNA-Seq]

| PRJNA647302 | ENA

Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin [ChIP-Seq]

Project description:Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin [ChIP-Seq]

| PRJNA647303 | ENA

Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin

Project description: Not available

| S-EPMC8560803 | biostudies-literature

Control of osteocyte dendrite formation by Sp7 and its target gene osteocrin

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

2021-09-20 | GSE154719 | GEO

The effect of S309W mutation on SP7 genomic binding in chondrocytes

Project description:SP7/Osterix is a transcription factor critical for osteoblast maturation and bone formation. We identidied a missense variant (c.926C>G:p.S309W) in SP7 in a patient with a unique high turnover bone disease. Mice with the corresponding variant similarly showed a complex skeletal phenotype distinct from that of Sp7-null mice. We therefore performed ChIP-Seq in primary chondrocytes to study how the mutation alters the genomic binding of SP7.

2021-12-22 | GSE151217 | GEO

SP7 mutant S309W genomic binding in MC3T3 cells

Project description:S309W mutation of SP7 is found in a patient with craniosynostosis, cranial hyperostosis, and long bone fragility. In this experiment we aimed to compare the effect of the mutation on SP7 genomic binding in the presence of DLX5

2021-12-23 | GSE180367 | GEO

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