Phenotypic analysis of dental pulp stem cells derived from deciduous teeth in Down syndrome.
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE299674 | GEO | 2025/06/13
REPOSITORIES: GEO
Similar Datasets
Project description:Human deciduous and permanent teeth exhibit different developmental processes, morphologies, histological characteristics and life cycles. In addition their pulp tissues react differently to external stimuli, such as the pulp sensitivity test, dental trauma and pulp therapy materials. These differences are attributable to their genetic backgrounds. Therefore the purpose of this study is to compare the differences of dental pulp in deciduous and permanent teeth. Pulp samples were obtained from permanent premolars (n=6, aged 11-14 years) and deciduous teeth (n=6, aged 11-14 years). Comparative cDNA microarrary analysis revealed several differences in gene expression between the deciduous and permanent pulp tissues. Each GSM record represents a pulp sample pooled from two teeth samples.
2014-08-21 | E-GEOD-51449 | biostudies-arrayexpress
Project description:Human deciduous and permanent teeth exhibit different developmental processes, morphologies, histological characteristics and life cycles. In addition their pulp tissues react differently to external stimuli, such as the pulp sensitivity test, dental trauma and pulp therapy materials. These differences are attributable to their genetic backgrounds. Therefore the purpose of this study is to compare the differences of dental pulp in deciduous and permanent teeth.
2014-08-21 | GSE51449 | GEO
Project description:Phenotypic analysis of dental pulp stem cells derived from deciduous teeth in Down syndrome.
| PRJNA1275947 | ENA
Project description:Deciduous and permanent human teeth represent a model system to study ageing of mesenchymal populations. Aging is tightly connected to self-renewal and proliferation and thus, mapping potential molecular differences in these characteristics between populations constitutes an important task. Specifically designed microarray panels were used. We have detected a number of molecules that were differentially expressed in dental pulp mesenchyme from deciduous and permanent teeth extracted from young children and adults, respectively. Among the differentially regulated genes HMGA2, a stem cell-associated marker, stood out as a remarkable example with a robust expression in deciduous pulp cells. In addition to this, we discovered that several proliferation-related genes, including CDC2A and CDK4, were up-regulated in deciduous pulp cells, while matrix genes COL1A1, fibronectin and several signaling molecules, such as VEGF, FGFr-1 and IGFr-1 were up-regulated in the pulp cells from permanent teeth. Taken together, our data suggest that deciduous pulp cells are more robust in self- renewal and proliferation, whereas adult dental pulp cells are more capable of signaling and matrix synthesis.
2014-09-01 | GSE58668 | GEO
Project description:Deciduous and permanent human teeth represent a model system to study ageing of mesenchymal populations. Aging is tightly connected to self-renewal and proliferation and thus, mapping potential molecular differences in these characteristics between populations constitutes an important task. Specifically designed microarray panels were used. We have detected a number of molecules that were differentially expressed in dental pulp mesenchyme from deciduous and permanent teeth extracted from young children and adults, respectively. Among the differentially regulated genes HMGA2, a stem cell-associated marker, stood out as a remarkable example with a robust expression in deciduous pulp cells. In addition to this, we discovered that several proliferation-related genes, including CDC2A and CDK4, were up-regulated in deciduous pulp cells, while matrix genes COL1A1, fibronectin and several signaling molecules, such as VEGF, FGFr-1 and IGFr-1 were up-regulated in the pulp cells from permanent teeth. Taken together, our data suggest that deciduous pulp cells are more robust in self- renewal and proliferation, whereas adult dental pulp cells are more capable of signaling and matrix synthesis. The deciduous teeth were collected from 3-12-year-old children (N=8), whereas the permanent teeth were collected from adults, 19-52 years of age (N=8). The tooth was mechanically separated into two halves to remove all soft tissue in the pulp. The pulp tissue was digested and the dissociated cells were passed through cell strainer and plated with culture medium. The cells were then passaged at 90% confluency to a 10 cm dish for expansion. RNA was extracted from passage one cells with the Qiagen RNeasy Mini Kit. Microarray analysis was performed using PIQORTM Stem Cell Microarray chip (Miltenyi Biotech), which is comprised of 942 relevant genes for stem/progenitor cells and key genes for cell differentiation, to identify gene sets that are differentially expressed between cells in the deciduous and adult teeth. A total of 1 μg RNA for each sample was used for amplification and further analysis with the PIQORTM stem cell microarray chip (Miltenyi Biotec), followed by detection with a laser scanner (Agilent Technologies). In total, 8 comparisons were performed with dataset consisting of two microarrays, each containing a total of 11 slides with signal intensities within the R/Bioconductor statistical framework. The Linear Model for Microarray Data package (Limma) was used to pre-process the raw data, perform quality controls and estimate statistical significance. Expression intensities were background-corrected using a convolution of normal and exponential distributions with an offset of 50, which were then normalized within every slide using loess normalization. We analyzed the red and green channels separately using the mixed model method and different groups were quantile-normalized separately. The correlation was computed between the two channels for the same spot. Differentially expressed genes were identified by computing the contrasts, fitting to a linear model, performing the hypothesis tests, and correcting for multiple testing by performing the false discovery rate using the Benjamini-Hochberg correction.
2014-09-01 | E-GEOD-58668 | biostudies-arrayexpress
Project description:There are histological and functional differences between human deciduous and permanent pediodontal ligament (PDL) tissues. The purpose of this study was to determine the differences between these two types of tissue at the molecular level by comparative gene expression analysis. PDL samples were obtained from permanent premolars (n=38) and anterior deciduous teeth (n=31) extracted from 40 healthy persons. Comparative cDNA microarrary analysis revealed several differences in gene expression between the deciduous and permanent PDL tissues.
2013-09-06 | E-GEOD-50640 | biostudies-arrayexpress
Project description:PITX1 had a significantly higher expression in the lower teeth compared to the upper teeth and this difference in PITX1 level was more evident in the molars compared to premolars, consistent with data in mouse developing teeth. These show that the differential gene expression during odontogenesis can continue to exist in mature teeth. We suggest that an in vitro study of dental pulp cells should take the differential gene profiles between the mandibular and maxillary teeth into consideration. The knowledge about gene profiling and pathways in mature teeth paves a way to explore a more precise treatment approach in regenerative dentistry.
2022-06-01 | GSE193471 | GEO
Project description:bFGF regulated stemness maintenance and cell differentiation in stem cells isolated from human exfoliated deciduous teeth (SHEDs). In addition, WNT3A is also shown to regulate osteogenic differentiation in mesenchymal stem cells. Here, transcriptome analysis of bFGF and WNT3A treated SHEDs was evaluated using a high throughput RNA sequencing technique. Results demonstrated that bFGF regulated genes related to cell cycle control and cell proliferation in SHEDs.
2020-07-07 | GSE131758 | GEO
Project description:In this study, we investigated its suitability for disease modeling by carrying out gene expression profiling, using RNA-seq, on neurons derived from iPSCs made from dental pulp extracted from deciduous teeth (T-iPSCs) and fibroblasts (F-iPSCs). Comparison of expression profiles of iPSC derived from dental pulp and skin-fibroblast
2013-05-01 | E-GEOD-43143 | biostudies-arrayexpress
Project description:To explore the cellular response of stem cell derived from human exfoliated deciduous teeth (SHED) in response to inorganic pyrophosphate (PPi). SHED was extracted from human primary exfoliated teeth. The cellular responses including cell proliferation, apoptosis, migration, transcriptomic expression was investigated afterward PPi treatment at the distinct concentration. Additionally, Alizarin red, oil red O, and alcian blue staining were performed to evaluate the multipotency. Inorganic pyrophosphate (PPi) had no although effect on cell cycle, yet enhanced migratory cell, compared to control. Additionally, PPi abolished the gene expression of osteogenic genes and also calcium deposition. Interestingly, the inhibition of mineralization by PPi was not reversed though Pi3K and MAPK family, including ERK, P38, and JNK signalling pathway. On the contrary, PPi induced the ALPL and COL1A1 gene expression and reduced RANKL mRNA and protein in the condition medium, resulting in a decrease of osteoclast formation. The transcriptomic profiles illustrated PPi modulated interferon ⍺/ , TGF-β1, NOTCH signalling pathway, and metabolism of lipid. In summary, our study revealed that PPi enhanced migratory ability, however inhibited osteo/odontogenic, adipogenic and chondrogenic differentiation. This study implicated that PPi can modulate cellular responses of SHED.
2024-12-05 | GSE281644 | GEO