Transcriptomic profiles in dental pulp cells from one CCD patient with allelic RUNX2 deletion and one sex-age matched unaffected individual.
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ABSTRACT:
PROVIDER: PRJNA412929 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR6127501_1.fastq.gz | Fastqsanger.gz | |||
| SRR6127501_2.fastq.gz | Fastqsanger.gz | |||
| SRR6127502_1.fastq.gz | Fastqsanger.gz | |||
| SRR6127502_2.fastq.gz | Fastqsanger.gz |
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Project description:The goal is to investigate the downstream targets of RUNX2 signaling which are potentially involved in the disease process of Cleidocranial Dysplasia (CCD). RNA-seq was performned to compare the mRNA profiles in human dental pulp cells from one CCD patient with allelic RUNX2 deletion (CCD-011) and sex-age matched unaffected individual(Control). Of 25,643 genes analyzed, 11,039 genes had no detectable signal in both CCD and control samples tested leaving 14,604 genes that were evaluated for differential gene expression. In the detectable genes, 60 transcripts (4.1%) were found to be statistically significantly dysregulated with 63% upregulated and 27% downregulated (fold change ≥ 2; q-value < 0.05).
2017-10-03 | GSE104527 | GEO
Project description:Peptidylarginine deiminase (PADI) 2 catalyzes the posttranslational conversion of peptidyl-arginine to peptidyl-citrulline, a process called citrullination. However, the exact function of PADI2 in bone development and bone homeostasis remains unknown. In this study, we found that Padi2 deficiency lead to loss of bone mass and cleidocranial dysplasia (CCD)-like phenotype with delayed calvarial ossification and clavicular hypoplasia due to impaired osteoblast differentiation. Mechanistically, Padi2 depletion drastically reduced RUNX2 protein level and PADI2 stabilized RUNX2 from ubiquitin-proteasomal degradation. Furthermore, we identified a new modification at RUNX2, citrullination of arginine and its conversion to citrulline by PADI2. PADI2 citrullinates RUNX2 via a direct physical interaction and the citrullination sites at RUNX2 by PADI2 were identified by high-resolution liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis. Interestingly, in mouse RUNX2 isoform 1 (528 a.a), loss of R381, a citrullination site by PADI2, drastically reduced RUNX2 protein levels, indicating that the citrullination of RUNX2 by PADI2 is required for the maintenance of RUNX2 protein stability. Collectively, our study demonstrates that PADI2-mediated citrullination play key roles in bone formation and bone homeostasis. Also, CCD may result from functional defects of RUNX2 by Padi2 deficiency. These insights into the role of PADI2 in postnatal bone formation and homeostasis and CCD pathogenesis may assist in the development of new therapies for bone diseases including CCD.
2023-10-24 | PXD040179 | Pride
Project description:Runx2 and Axin2 regulate skeletal development. We recently determined that Axin2 and Runx2 molecularly interact in differentiating osteoblasts to regulate intramembranous bone formation, but the relationship between these factors in endochondral bone formation was unresolved. To address this, we examined the effects of Axin2 deficiency on the cleidocranial dysplasia (CCD) phenotype of Runx2+/- mice, focusing on skeletal defects attributed to improper endochondral bone formation. Axin2 deficiency unexpectedly exacerbated calvarial components of the CCD phenotype in the Runx2+/- mice; the endocranial layer of the frontal suture, which develops by endochondral bone formation, failed to mineralize in the Axin2-/-:Runx2+/-mice, resulting in a cartilaginous, fibrotic and larger fontanel than observed in Runx2+/- mice. Transcripts associated with cartilage development (e.g., Acan, miR140) were expressed at higher levels, whereas blood vessel morphogenesis transcripts (e.g., Slit2) were suppressed in Axin2-/-:Runx2+/-calvaria. Cartilage maturation was impaired, as primary chondrocytes from double mutant mice demonstrated delayed differentiation and produced less calcified matrix in vitro. The genetic dominance of Runx2 was also reflected during endochondral fracture repair, as both Runx2+/- and double mutant Axin2-/-:Runx2+/- mice had enlarged fracture calluses at early stages of healing. However, by the end stages of fracture healing, double mutant animals diverged from the Runx2+/- mice, showing smaller calluses and increased torsional strength indicative of more rapid end stage bone formation as seen in the Axin2-/- mice. Taken together, our data demonstrate a dominant role for Runx2 in chondrocyte maturation, but implicate Axin2 as an important modulator of the terminal stages of endochondral bone formation. 4 mice per genotype X 4 genotypes: wildtype (WT), Runx2+/- (R-Het), Axin2-/- (A-KO), Axin2-/-:Runx2+/- (A-KO:R-Het). Total = 16 samples
2014-07-04 | E-GEOD-59079 | biostudies-arrayexpress
Project description:Runx2 and Axin2 regulate skeletal development. We recently determined that Axin2 and Runx2 molecularly interact in differentiating osteoblasts to regulate intramembranous bone formation, but the relationship between these factors in endochondral bone formation was unresolved. To address this, we examined the effects of Axin2 deficiency on the cleidocranial dysplasia (CCD) phenotype of Runx2+/-M-BM- mice, focusing on skeletal defects attributed to improper endochondral bone formation. Axin2 deficiency unexpectedly exacerbated calvarial components of the CCD phenotype in the Runx2+/-M-BM- mice; the endocranial layer of the frontal suture, which develops by endochondral bone formation, failed to mineralize in the Axin2-/-:Runx2+/-mice, resulting in a cartilaginous, fibrotic and larger fontanel than observed in Runx2+/-M-BM- mice. Transcripts associated with cartilage development (e.g., Acan, miR140) were expressed at higher levels, whereas blood vessel morphogenesis transcripts (e.g., Slit2) were suppressed in Axin2-/-:Runx2+/-calvaria. Cartilage maturation was impaired, as primary chondrocytes from double mutant mice demonstrated delayed differentiation and produced less calcified matrix in vitro. The genetic dominance of Runx2 was also reflected during endochondral fracture repair, as both Runx2+/-M-BM- and double mutant Axin2-/-:Runx2+/-M-BM- mice had enlarged fracture calluses at early stages of healing. However, by the end stages of fracture healing, double mutant animals diverged from the Runx2+/-M-BM- mice, showing smaller calluses and increased torsional strength indicative of more rapid end stage bone formation as seen in the Axin2-/-M-BM- mice. Taken together, our data demonstrate a dominant role for Runx2 in chondrocyte maturation, but implicate Axin2 as an important modulator of the terminal stages of endochondral bone formation. 4 mice per genotype X 4 genotypes: wildtype (WT), Runx2+/- (R-Het), Axin2-/- (A-KO), Axin2-/-:Runx2+/- (A-KO:R-Het). Total = 16 samples
2014-07-04 | E-GEOD-59081 | biostudies-arrayexpress
Project description:Runx2 and Axin2 regulate skeletal development. We recently determined that Axin2 and Runx2 molecularly interact in differentiating osteoblasts to regulate intramembranous bone formation, but the relationship between these factors in endochondral bone formation was unresolved. To address this, we examined the effects of Axin2 deficiency on the cleidocranial dysplasia (CCD) phenotype of Runx2+/- mice, focusing on skeletal defects attributed to improper endochondral bone formation. Axin2 deficiency unexpectedly exacerbated calvarial components of the CCD phenotype in the Runx2+/- mice; the endocranial layer of the frontal suture, which develops by endochondral bone formation, failed to mineralize in the Axin2-/-:Runx2+/-mice, resulting in a cartilaginous, fibrotic and larger fontanel than observed in Runx2+/- mice. Transcripts associated with cartilage development (e.g., Acan, miR140) were expressed at higher levels, whereas blood vessel morphogenesis transcripts (e.g., Slit2) were suppressed in Axin2-/-:Runx2+/-calvaria. Cartilage maturation was impaired, as primary chondrocytes from double mutant mice demonstrated delayed differentiation and produced less calcified matrix in vitro. The genetic dominance of Runx2 was also reflected during endochondral fracture repair, as both Runx2+/- and double mutant Axin2-/-:Runx2+/- mice had enlarged fracture calluses at early stages of healing. However, by the end stages of fracture healing, double mutant animals diverged from the Runx2+/- mice, showing smaller calluses and increased torsional strength indicative of more rapid end stage bone formation as seen in the Axin2-/- mice. Taken together, our data demonstrate a dominant role for Runx2 in chondrocyte maturation, but implicate Axin2 as an important modulator of the terminal stages of endochondral bone formation.
2014-07-04 | GSE59081 | GEO
Project description:Runx2 and Axin2 regulate skeletal development. We recently determined that Axin2 and Runx2 molecularly interact in differentiating osteoblasts to regulate intramembranous bone formation, but the relationship between these factors in endochondral bone formation was unresolved. To address this, we examined the effects of Axin2 deficiency on the cleidocranial dysplasia (CCD) phenotype of Runx2+/- mice, focusing on skeletal defects attributed to improper endochondral bone formation. Axin2 deficiency unexpectedly exacerbated calvarial components of the CCD phenotype in the Runx2+/- mice; the endocranial layer of the frontal suture, which develops by endochondral bone formation, failed to mineralize in the Axin2-/-:Runx2+/-mice, resulting in a cartilaginous, fibrotic and larger fontanel than observed in Runx2+/- mice. Transcripts associated with cartilage development (e.g., Acan, miR140) were expressed at higher levels, whereas blood vessel morphogenesis transcripts (e.g., Slit2) were suppressed in Axin2-/-:Runx2+/-calvaria. Cartilage maturation was impaired, as primary chondrocytes from double mutant mice demonstrated delayed differentiation and produced less calcified matrix in vitro. The genetic dominance of Runx2 was also reflected during endochondral fracture repair, as both Runx2+/- and double mutant Axin2-/-:Runx2+/- mice had enlarged fracture calluses at early stages of healing. However, by the end stages of fracture healing, double mutant animals diverged from the Runx2+/- mice, showing smaller calluses and increased torsional strength indicative of more rapid end stage bone formation as seen in the Axin2-/- mice. Taken together, our data demonstrate a dominant role for Runx2 in chondrocyte maturation, but implicate Axin2 as an important modulator of the terminal stages of endochondral bone formation.
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Project description:CCD, which is characterized by hypoplastic clavicles, open fontanelles, supernumerary teeth, and short stature, are caused by heterozygous mutation of RUNX2. However, the reason why the suture closure is severely impaired in CCD patients remains to be clarified. The closure of posterior frontal (PF) and sagittal sutures was completely interrupted in Runx2+/– mice, and the proliferation of the suture mesenchymal cells was reduced compared with that in wild-type mice. To reveal the molecular mechanism, the differentially expressed genes between wild-type and Runx2+/– PF sutures were identified by microarray and real-time RT-PCR analyses. The expression of hedgehog, Fgf, Wnt, Pthlh signaling pathway genes, including Gli1, Ptch1, Ihh, Fgfr1-3, Tcf7, Wnt10b, Wnt1, and Pth1r, was reduced in PF sutures of Runx2+/– mice. These findings indicated that more than half dosage of Runx2 is required for the proliferation of suture mesenchymal cells, their commitment into osteoblast-lineage cells, and the induction of the hedgehog, Fgf, Wnt, and Pthlh signaling pathway gene expression in the sutures.
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