Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1136245 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR29839700.fastq.gz | Fastqsanger.gz | |||
| SRR29839701.fastq.gz | Fastqsanger.gz | |||
| SRR29839702.fastq.gz | Fastqsanger.gz | |||
| SRR29839703.fastq.gz | Fastqsanger.gz | |||
| SRR29839704.fastq.gz | Fastqsanger.gz |
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Project description:Mouse periodontal ligament tissue after orthodontic tooth movement for 14 days. Tissue was dissected by a laser microdissection microscope. Samples were analyzed separately at mesial (compression) and distal (tension) sides.
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Project description:As the primary seed cells in periodontal tissue engineering, the role of periodontal ligament stem cells (PDLSCs) in periodontal tissue regeneration and bone remodeling during orthodontic tooth movement (OTM) has been well documented. Nevertheless, the impact of different polarization states of macrophages on the osteogenic differentiation of PDLSCs is poorly understood. M0, M1 and M2 macrophage-derived exosomes (M0-exo, M1-exo and M2-exo) were treated with primary cultured human PDLSCs, respectively. Identification of differentially expressed microRNAs (DE-miRNA) in M0-exo and M2-exo by miRNA microarray. In summary, we have indicated for the first time that M2-exo can promote osteogenic differentiation of human PDLSCs, and have revealed the functions and pathways involved in the DE-miRNAs of M0-exo and M2-exo and their downstream targets.
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Project description:Corticision is a common technique to accelerate orthodontic tooth movement; however, not much is known about the underlying mechanisms. In this study, we investigated the mechanism of alveolar tissue remodeling after corticision in a rat model of tooth movement (TM) by analyzing the differential transcriptome
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Project description:Single cell RNA sequencing analysis of orthodontic tooth movement in rat periodontal ligament
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Project description:In orthodontic therapy periodontal tissue responds to mechanical stimuli by bone remodeling mediated by specific molecules involved in periodontal regeneration and homeostasis. The resulting changes are reflected in the salivary proteome that is emerging as a valuable diagnostic tool. We analyzed the changes of saliva proteome during orthodontic tooth movement in 12 healthy male patients, presented with malocclusion treated by placement of fixed orthodontic appliance. Six patients with identical dental pathology, but no orthodontic therapy were used as control samples. Saliva was collected a day before, immediately after, and 2, 7 and 30 days after the placement of the fixed orthodontic appliance and analyzed by LC-MS. Total of 198 proteins were identified and classified on the basis of their functional characteristics. Proteins involved in bone remodeling, inflammation and healing were detected mostly 30 days after placement of the fixed orthodontic appliance. At this time point, Bone morphogenetic protein 4 emerged as a central player in the ongoing dental bone remodeling. Besides BMP4, BMP antagonists: BMP Binding Endothelial Regulator (BMPER), Insulin-like growth factor-binding protein 3 (IGFBP3), Cytoskeleton-associated protein 4 (CKAP4) and Fibroblast growth factor 5 (FGF5), were also identified. Presence of BMP4 in human saliva 30 days after the placement of orthodontic fixed appliance was confirmed by ELISA and concentration of BMP4 was 3.2 pg/ml. To date, there is no published data on the presence of BMP molecules or their antagonists in saliva or the gingival cervical fluid, regardless of different orthodontic treatments or disease. BMP4 is involved not only in orthodontic treatment, but also in processes involving tooth development and homeostasis. Therefore, a better understanding of its networks in bone remodeling during OTM is heralded.
2021-09-09 | PXD016481 | Pride
Project description:Human dental follicle cells (hDFCs) are precursor cells of periodontal development. Long non-coding RNAs (lncRNAs) have been revealed to be crucial factors that regulate a variety of biological processes; however, whether lncRNAs serve a role in human periodontal development remains unknown. Therefore, the present study used microarrays to detect the differentially expressed lncRNAs and mRNAs between hDFCs and human periodontal ligament cells (hPDLCs). Human dental follicle and periodontal ligament samples were obtained from four adolescents (2 males and 2 females) between 12 and 16 years old following premolar and immature impacted third molar (roots developed to <2/3 their full size) extraction for orthodontic reasons. To verify the reliability of the microarray data, six differentially expressed lncRNAs and six differentially expressed mRNAs were randomly selected for analysis of their expression levels by RT-qPCR.
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Project description:Mesenchymal stem cells (MSCs) isolated from human gingival tissue and periodontal ligament (PDL) have shown potential for periodontal regeneration. Although PDL-MSCs have been recognized as the best choic for cell-based periodontal regeneration, isolation of PDL-MSCs required tooth extraction which is impractical for clinical use. Supracrestal gingival connective tissue (SG) is a part of gingival tissue which located closely to PDL and can be harvested without tooth extraction. Here, the characteristics of MSCs derived from SG was evaluated. Differential gene expression profiles of hSG-MSCs, hPDL-MSCs, and human marginal gingival tissue (MG)-derived MSCs were compared. Results demonstrated that hSG-MSCs had a more similar gene expression profile to the hPDL-MSCs than the hMG-MSCs, suggested a potential candidate cell source of SG for future peridontal tissue engineering.
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Project description:Purpose : This study was performed to investigate the changes in gene expression in periodontal ligament (PDL) cells following mechanical stimulus through RNA sequencing. Method : Premolars extracted for orthodontic treatment were used. To stimulate the PDL cells, an orthodontic force of 100× g was applied to the premolar (experimental group; n = 11), whereas the tooth on the other side was left untreated (control group; n = 11). After the PDL cells were isolated from the extracted teeth, gene set enrichment analysis (GSEA), differentially expressed gene (DEG) analysis, and real-time PCR were performed to compare the two groups. Result : GSEA demonstrated that gene sets related to the cell cycle pathway were upregulated in PDL. Thirteen upregulated and twenty downregulated genes were found through DEG analysis. Real-time PCR results confirmed that five upregulated genes (CC2D1B, CPNE3, OPHN1, TANGO2, and UAP-1) and six downregulated genes (MYOM2, PPM1F, PCDP1, ATP2A1, GPR171, and RP1-34H18.1-1) were consistent with RNA sequencing results. Conclusion : Two upregulated genes, CPNE3 and OPHN1, and one downregulated gene, PPM1F, play an important role in PDL regeneration in humans when orthodontic force is applied.
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