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Skeletal Stem Cell Powering Cranial Suture Fate: An Answer to Craniosynostosis (scRNA-seq)

ABSTRACT: Skeletal Stem Cell Powering Cranial Suture Fate: An Answer to Craniosynostosis (scRNA-seq)

PROVIDER: PRJNA577680 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10280300_1.fastq.gz	Fastqsanger.gz
	SRR10280300_2.fastq.gz	Fastqsanger.gz
	SRR10280400_1.fastq.gz	Fastqsanger.gz
	SRR10280400_2.fastq.gz	Fastqsanger.gz
	SRR10280500_1.fastq.gz	Fastqsanger.gz

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Skeletal Stem Cell Powering Cranial Suture Fate: An Answer to Craniosynostosis

Project description:Skeletal Stem Cell Powering Cranial Suture Fate: An Answer to Craniosynostosis

| PRJNA577679 | ENA

Skeletal Stem Cell Powering Cranial Suture Fate: An Answer to Craniosynostosis (scRNA-seq)

Project description:Purpose: The cranial suture is a fibrous joint, and similar to the growth plates of the skeletal long bone, they serve as the major centers of calvarial vault morphogenesis. Our group’s identification of a skeletal stem cell isolated from the mouse tibial growth plate prompted us to investigate whether these skeletal stem cells are also resident in the mouse cranial sutures and if they govern postnatal suture patency or fusion. Results: We preformed a spatio-temporal profiling of the mouse cranial sutures by flow cytometry, demonstrating a significant decrease in the temporal representation of skeletal stem cells in fusing versus patent sutures. Moreover, canonical Wnt signaling has a significant impact on skeletal stem cells proliferation and thus representation within the suture, dictating fate: fusion or patency. Breeding an Axin2+/-LacZ mouse, with enhanced activation of canonical Wnt signaling to a Twist1+/− mouse, harboring a coronal craniosynostosis enriched the skeletal stem cell pool in coronal sutures, thereby preventing Twist1+/− craniosynostosis. Conclusions: Our findings suggest an imbalance and/or decrease in resident skeletal stem cells within the cranial sutures gives rise to craniosynostosis, however, restoring this representation by enriching skeletal stem cells within the suture can maintain patency.

2020-04-15 | GSE138881 | GEO

Skeletal Stem Cell Powering Cranial Suture Fate: An Answer to Craniosynostosis (bulk_RNA-seq)

2020-04-15 | GSE138880 | GEO

Skeletal Stem Cell Powering Cranial Suture Fate: An Answer to Craniosynostosis (bulk_RNA-seq)

Project description:Skeletal Stem Cell Powering Cranial Suture Fate: An Answer to Craniosynostosis (bulk_RNA-seq)

| PRJNA577681 | ENA

Gene Expression Changes Between Patent and Fused Cranial Sutures in a Nonsyndromic Craniosynostosis Population

Project description:Assaying gene expression in sutural bone fragments from patients diagnosed with non-syndromic craniosynostosis. Sutural fragments were collected from both the fused and patent cranial suture of infants during cranial vault reconstruction. Gene expression was compared between the patent and fused sutures using the paired t-test. The aim was to identify thoses genes significantly differentially expressed in fused suture relative to patent. Total RNA isolated from patent and fused human cranial sutures was assayed. Expression in synostosed suture was compared to patent suture.

2013-09-12 | E-GEOD-50796 | biostudies-arrayexpress

Gene Expression Changes Between Patent and Fused Cranial Sutures in a Nonsyndromic Craniosynostosis Population

2013-09-12 | GSE50796 | GEO

Skeletal Stem Cell Powering Cranial Suture Fate: An Answer to Craniosynostosis

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

2020-04-15 | GSE138882 | GEO

Calvarial osteoblast transcriptome analysis identifies genetic targets and extracellular matrix-mediated focal adhesion as potential biomarkers for single-suture craniosynostosis

Project description:Craniosynostosis is a disease defined by premature fusion of one or more cranial sutures. The mechanistic pathology of isolated single-suture craniosynostosis is complex and while a number of genetic biomarkers and environmental predispositions have been identified, in many cases the causes remain controversial and inconclusive at best. After controlling for variables contributing to potential bias, FGF7, SFRP4, and VCAM1 emerged as potential genetic biomarkers for single-suture craniosynostosis due to their significantly large changes in gene expression compared to the control population. Furthermore, pathway analysis implicated focal adhesion and extracellular matrix (ECM)-receptor interaction as differentially regulated gene networks when comparing all cases of single-suture synostosis and controls. Lastly, overall gene expression was found to be highly conserved between coronal and metopic cases, as evidenced by the fact that WNT2 and IGFBP2 were the only differentially regulated genes identified in a direct comparison. These results not only confirm the roles of previously reported craniosynostosis-related targets but also introduce novel genetic biomarkers and pathways that may play critical roles in its pathogenesis. In this study, gene expression data from 199 patients with isolated sagittal (n= 100), unilateral coronal (n = 50), and metopic (n = 49) synostosis are compared against both a control population (n = 50), as well as each other.

2012-03-04 | E-GEOD-27976 | biostudies-arrayexpress

Calvarial osteoblast transcriptome analysis identifies genetic targets and extracellular matrix-mediated focal adhesion as potential biomarkers for single-suture craniosynostosis

2012-03-04 | GSE27976 | GEO

BMP-dependent cellular dynamics during cranial suture establishment in zebrafish

Project description:Cranial sutures separate neighboring skull bones and contain skeletal stem cells that drive bone growth. A key question is how osteogenic activity is controlled to promote bone growth while preventing aberrant bone fusions during skull expansion. Here we integrate single-cell transcriptomics, in vivo expression validation, photoconversion-based lineage tracing, and a zebrafish craniosynostosis model to uncover key developmental transitions regulating bone formation during skull expansion. In addition to conservation of meninges and osteoblast lineage cells between zebrafish and mouse, single-cell transcriptomic analysis of the zebrafish skull reveals distinct subpopulations of suture mesenchyme that undergo transcriptomic changes during suture establishment. While lineage tracing with an osteoblast-specific nlsEOS reporter shows that bone formation largely occurs at suture edges, a subset of mesenchyme cells in the mid-suture region upregulate a suite of genes including BMP antagonists (e.g. grem1a) and pro-angiogenic factors. Further, lineage tracing with grem1a:nlsEOS reveals that this mid-suture subpopulation is largely non-osteogenic. In twist1b; tcf12 mutant zebrafish, a model for the coronal synostosis of Saethre-Chotzen Syndrome, reduction of grem1a+ mid-suture cells correlates with misregulated bone formation and reduced blood vessels at the coronal suture. In addition, combinatorial mutation of BMP antagonists enriched in the mid-suture subpopulation results in increased BMP signaling in the suture, misregulated bone formation, and abnormal suture morphology. These data support roles of a subset of mid-suture mesenchyme in locally promoting BMP antagonism that ensures proper suture morphology.

2024-07-11 | GSE223147 | GEO

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