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Differential gene expression in Jagged1 treated human dental pulp cells.

ABSTRACT: The present study aimed to determine mRNA expression profilling of indirect immobilized Jagged1 treated human dental pulp cells. Human dental pulp cells were seeded on indirect immobilized Jagged1 surface for 24 h. Cells on hFc immobilized surface was employed as the control. RNA sequencing was performed using NextSeq500, Illumina. Data were processed on FastQC and FastQ Toolkit and subsequently mapped with Homo sapiens hg38 using TopHat2. Mapped data were processed through Cufflink2 and Cuffdiff2. Results demonstrated 1,465 differentially expressed genes in Jagged1 treated cells compared with the control. Enriched pathway analysis revealed that Jagged1 treated cells upregulated genes mainly involved in extracellular matrix organization, disease, and signal transduction categories. However, genes related to cell cycle, DNA replication and DNA repair categories were downregulated. In conclusion, Jagged1 activates Notch signaling and regulates cell cycle pathway in hDPs.

ORGANISM(S): Homo sapiens

PROVIDER: GSE94989 | GEO | 2017/04/04

SECONDARY ACCESSION(S): PRJNA375088

REPOSITORIES: GEO

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Homo sapiens

Project description:Differential gene expression in Jagged1 treated human dental pulp cells.

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Effect of EtOH on transcriptome signatures in human dental pulp stem cells

Project description:We have performed gene expression microarray analysis to profile transcriptomic signatures affected by EtOH in human dental pulp stem cells Established human dental pulp stem cells were treated with different dose of EtOH (0, 1, 5, 10, 20 and 50mM) for a different time periods (24 and 48 hrs). Total RNA was extracted and subjected to gene expression microarray analysis using Affymetrix human genome 2.0 plus array

2014-05-03 | E-GEOD-57255 | biostudies-arrayexpress

Dental Pulp Stem Cells LC-MS/MS analysis

Project description:This study focuses on the impact of ECM (extra-cellular matrix) over cell processes such as proliferation, differentiation or mineralization which is more specifically related to our dental pulp cells. We cultured these dental pulp stem cells (DPSC) in mineralization growth or normal growth conditions. After 21 days, cells were incubated in decellularized solution until no intact cells are seen. After ECM was washed, we studied the mineralization associated to these two different ECM. Matrisome proteins were identified through proteomics. DPSC matrisome is composed of 225 individual different proteins. We classified them according to different categories, the 3 core matrisome categories: glycoproteins, collagens, proteoglycans and the 3 matrisome associated proteins categories: the regulators, affiliated and secreted. When comparing the proteins in the N-ECM and OM-ECM, most of the core matrisome proteins are downregulated in OM conditions, except 3 glycoproteins, as well as regulators and secreted factors. However, annexins were found to be upregulated in OM condition. Cell adhesion, tensile strength and growth factor binding are over-represented in NM ECM. The collagen group and glycoproteins were higher in N-ECM than OM-ECM Thereafter, gingival stem cells (GSC), the less inherit osteogenic potency cells, were seeded on these N-ECM and OM-ECM. When GSCs were seeded on DPSC-derived ECM, the OM-ECM dramatically promoted mineral deposition compared with N-ECM. We hypothesize that annexins could participate in the osteogenic inductive properties. ECM plays a pivotal role in many physiological processes, it regulates cells behavior and can orient cell differentiation. Dental pulp and oral mucosa share embryological origins but differ in their reactions to insults. Dental pulp can mineralize while oral mucosa heals ad integrum. We hypothesize that ECM participate in these characteristics.

2021-09-23 | PXD018951 | Pride

Characterization of human dental pulp cells grown in chemically defined serum-free medium

Project description:Dental pulp cells obtained from several donors proliferated actively in a serum-free medium STK2. The growth rate of dental pulp cells from most donors was higher in the serum-free medium than that in a medium containing 10% serum. DNA microarray analyses showed that gene expression profile of dental pulp cells grown in the serum-free medium was similar to that of cells grown in a medium containing 10% serum. However, several genes related to cell proliferation were up-regulated in dental pulp cells grown in the serum-free medium.

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Comparative gene expression analysis of the human dental pulp in deciduous and permanent teeth

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2014-08-21 | E-GEOD-51449 | biostudies-arrayexpress

Dental pulp cell-derived powerful inducer of TNF-alpha comprises PKR containing stress granule rich microvesicles (GFvsDP-1)

Project description:It is well known that dental pulp tissue can evoke some of the most severe acute inflammation observed in the human body. We found that dental pulp cells secrete a factor that induces tumor necrosis factor-α production from macrophages, and designated this factor, dental pulp cell-derived tumor necrosis factor-α-inducing factor (DPTIF). DPTIF was induced in dental pulp cells and transported to recipient cells via microvesicles. Treatment of dental pulp cells with a PKR inhibitor markedly suppressed DPTIF activity, and weak interferon signals were constitutively activated inside the cells. In recipient macrophages, stimulation with DPTIF-containing supernatants from pulp cells resulted in activation of both nuclear factor-κB and MAP kinases like JNK and p38. Proteomics analyses revealed that many stress granule-related proteins were present in supernatants from dental pulp cells as well as microvesicle marker proteins like GAPDH, β-actin, HSPA8, HSPB1, HSPE1, and HSPD1. Furthermore, giant molecule AHNAK and PKR were detected in microvesicles derived from dental pulp cells, and gene silencing of AHNAK in pulp cells led to reduced DPTIF activity. Thus, it appeared that the core protein of DPTIF was PKR, and that PKR was maintained in an active state in stress granule aggregates with AHNAK and transported via microvesicles. The activity of DPTIF for TNF-α induction was far superior to that of gram-negative bacterial endotoxin. Therefore, we, report for the first time, that active PKR is transported via microvesicles as stress granule aggregates and induces powerful inflammatory signals in macrophages.

2018-12-30 | GSE124490 | GEO

Dental pulp cell-derived powerful inducer of TNF-alpha comprises PKR containing stress granule rich microvesicles (pDCvsGF)

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Comparative gene expression analysis of the human dental pulp in deciduous and permanent teeth

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RNA-Seq analysis of neurons derived from induced pluripotent stem cells reprogrammed from dental pulp

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

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