Extracellular matrix remodelling in human dental pulp upon carious 2 lesion through the prism of single-cell RNA sequencing analysis
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1055980 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Carious lesion is a bacteria caused destruction of tooth mineralized matrices, that can lead to pulp necrosis, if left untreated. Prior to reaching pulp, the advancing bacterial invasion evokes molecular and cellular changes in the underlying pulp tissue, that include reparative dentinogenesis and immune reaction. The balance between these two processes determines the outcome of carious lesion, yet the detailed molecular map of pulp reaction to progressing carious is missing. In this study we used single cell RNA sequencing (scRNAseq) and generated a high-resolution molecular map of carious lesion.
2024-01-01 | GSE251953 | GEO
Project description:Odontoblasts and fibroblasts are suspected to influence the innate immune response triggered in the dental pulp by micro-organisms that progressively invade the human tooth during the carious process. To determine whether they differ in their responses to oral pathogens, we performed a systematic comparative analysis of odontoblast-like cell and pulp fibroblast responses to TLR2, TLR3 and TLR4 specific agonists (lipoteichoic acid [LTA], double-stranded RNA and lipopolysaccharide [LPS], respectively). Cells responded to these agonists by differential up-regulation of chemokine gene expression. CXCL2 and CXCL10 were thus increased by LTA only in odontoblast-like cells, while LPS increased CCL7, CCL26 and CXCL11 only in fibroblasts. These data suggest that odontoblasts and pulp fibroblasts differ in their innate immune responses to oral micro-organisms that invade the pulp tissue. Keywords: cell type comparaison Dental pulp fibroblasts and Odontoblast-like cells stimulated with lipopolysaccharide, ipoteichoic acid or poly(I:C), or unstimulated. Triplicates.
2010-06-25 | E-GEOD-9560 | biostudies-arrayexpress
Project description:Purpose: To compare the transcriptional changes of genes in dental pulp tissues with different degrees of inflammatory severity and investigate the role of RAD54B in inflamed human dental pulp cells (hDPCs) Methods: Normal, carious, and pulpitis human dental pulp tissues were collected. Total RNA extracted were subjected to RNA-sequencing and gene expression profiles were further studied by Gene Ontology (GO) and KEGG pathway analysis. DEGs (differentially expressed genes) in homologous recombination repair (HRR) were validated with qRT-PCR. The expression of RAD54B and TNF-α in human dental pulp tissues was detected by immunohistochemistry. HDPCs were cultured and RAD54B level in hDPCs was detected after LPS stimulation using western blot. CCK-8 was applied to investigate the cell proliferation of hDPCs transfected with negative control (Nc) small interfering RNA (siRNA), RAD54B siRNA, P53 siRNA or both siRNAs with or without LPS stimulation. Flow cytometry was applied to detect the cell cycle distribution, and western blot and immunofluorescence were utilized to analyze the expression of RAD54B, P53 and P21 under the above treatments. One-way and two-way ANOVA followed by LSD posttest were used for statistical analysis. Results: RNA-sequencing results identified DEGs among three groups. KEGG pathway analysis revealed enrichment of DEGs in Replication and Repair pathway. HRR and non-homologous end joining (NHEJ) components were further verified and qRT-PCR results were basically consistent with the sequencing data. RAD54B, a HRR accessory factor highly expressed in carious and pulpitis tissues compared to normal pulp, was chosen as our gene of interest. High RAD54B expression was confirmed in inflamed human dental pulp tissues and LPS-stimulated hDPCs. Upon RAD54B knockdown, P53 and P21 expressions in hDPCs were upregulated whereas the cell proliferation was significantly downregulated, accompanied with increased G2/M phase arrest. After inhibiting P53 expression in RAD54B-knockdown hDPCs, P21 expression and cell proliferation were reversed. Conclusions: Gene expression profiles of normal, carious and pulpitis human dental pulp tissues were revealed. HRR components was elucidated to function in dental pulp inflammation. Among HRR DEGs, RAD54B could regulate the cell proliferation of inflamed hDPCs via P53/P21 signaling. This research not only deepens our understanding of dental pulp inflammation but also provides a new insight to clarify the underlying mechanisms.
2023-09-02 | GSE198359 | GEO
Project description:Odontoblasts and fibroblasts are suspected to influence the innate immune response triggered in the dental pulp by micro-organisms that progressively invade the human tooth during the carious process. To determine whether they differ in their responses to oral pathogens, we performed a systematic comparative analysis of odontoblast-like cell and pulp fibroblast responses to TLR2, TLR3 and TLR4 specific agonists (lipoteichoic acid [LTA], double-stranded RNA and lipopolysaccharide [LPS], respectively). Cells responded to these agonists by differential up-regulation of chemokine gene expression. CXCL2 and CXCL10 were thus increased by LTA only in odontoblast-like cells, while LPS increased CCL7, CCL26 and CXCL11 only in fibroblasts. These data suggest that odontoblasts and pulp fibroblasts differ in their innate immune responses to oral micro-organisms that invade the pulp tissue. Keywords: cell type comparaison
2007-12-07 | GSE9560 | GEO
Project description:We present a collection of single-cell transcriptomic profiles of 6,810 pulpal cells isolated from a sound human maxillary third molars and carious teeth at different stages. We showed that the presence of deep, but not enamel caries, altered the immune cell compositions of the dental pulp. Differential expression analysis further revealed that the pro-inflammatory, anti-inflammatory and mineralization-related genes were upregulated in immune and stromal cells in deep dental caries. Cell-cell interaction prediction showed potential interactions between immune and stromal cells during homeostasis, and enhanced interactions between different cell types with macrophage during deep dental caries. Taken together, our study serves as a comprehensive survey of human pulpal cell heterogeneity, as well as provides novel molecular insights into dental pulps in health and disease.
2021-11-26 | GSE185222 | GEO
Project description:Transcriptional response of rat dental pulp cells (DPCs) cultured with SAHA at early and late mineralisation time points Transcript profiling of DPC identified several novel genes expression induced and supressed by HDACi at 24 hrs and 14 days under mineralising conditions. SAHA induces several members of the MMP family of endopepsidases (TIMP-1, MMP-9, MMP-13) and other members of the endochondral ossification pathway at 24 h. 8 experiemental parameters were analysed, each carried out in quadruplicate
2015-06-16 | E-GEOD-67175 | biostudies-arrayexpress
Project description:Transcriptional response of rat dental pulp cells (DPCs) cultured with SAHA at early and late mineralisation time points Transcript profiling of DPC identified several novel genes expression induced and supressed by HDACi at 24 hrs and 14 days under mineralising conditions. SAHA induces several members of the MMP family of endopepsidases (TIMP-1, MMP-9, MMP-13) and other members of the endochondral ossification pathway at 24 h.
2015-06-16 | GSE67175 | GEO
Project description:Human mesenchymal stem cells are a promising cell source for the treatment of stroke. Their primary mechanism of action occurs via neuroprotective effects by trophic factors, anti-inflammatory effects, and immunomodulation. However, the regeneration of damaged neuronal networks by cell transplantation remains still challenging. We hypothesized that cells induced to neural lineages would fit the niche, replace the lesion, and be more effective in improving symptoms compared with stem cells themselves. We investigated the characteristics of induced neural cells from human dental pulp tissue and compared the transplantation effects between these induced neural cells and uninduced dental pulp stem cells. Induced neural cells or dental pulp stem cells were intracerebrally transplanted 5 days after cerebral infarction induced by permanent middle cerebral artery occlusion in immunodeficient mice. Effects on functional recovery were also assessed through behavior testing. We used immunohistochemistry and neuron tracing to analyze the differentiation, axonal extension, and connectivity of transplanted cells to the host’s neural circuit. Transplantation of induced neural cells from human dental pulp ameliorated functional recovery after cerebral infarction compared with dental pulp stem cells. The induced neural cells comprised both neurons and glia and expressed functional voltage, and they were more related to neurogenesis in terms of transcriptomics. Induced neural cells had a higher viability than did dental pulp stem cells in hypoxic culture. We showed that induced neural cells from dental pulp tissue offer a novel therapeutic approach for recovery after cerebral infarction.
2021-09-01 | GSE174260 | GEO
Project description:Gene expression analysis data of human permanent dental pulp tissues
2016-11-22 | GSE75644 | GEO
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