scholarly journals Noncoding RNAs: new insights into the odontogenic differentiation of dental tissue-derived mesenchymal stem cells

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Fuchun Fang ◽  
Kaiying Zhang ◽  
Zhao Chen ◽  
Buling Wu

Abstract Odontoblasts are cells that contribute to the formation of the dental pulp complex. The differentiation of dental tissue-derived mesenchymal stem cells into odontoblasts comprises many factors and signaling pathways. Noncoding RNAs (ncRNAs), comprising a substantial part of poly-A tail mature RNAs, are considered “transcriptional noise.” Emerging evidence has shown that ncRNAs have key functions in the differentiation of mesenchymal stem cells. In this review, we discussed two major types of ncRNAs, including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), in terms of their role in the odontogenic differentiation of dental tissue-derived stem cells. Recent findings have demonstrated important functions for miRNAs and lncRNAs in odontogenic differentiation. It is expected that ncRNAs will become promising therapeutic targets for dentin regeneration based on stem cells.

2021 ◽  
Author(s):  
min xiao ◽  
Bo Yao ◽  
Xiaohan Mei ◽  
yu bai ◽  
Jueyu Wang ◽  
...  

Abstract Background SDF-1α cotreatment was shown to have synergistic effects on BMP-2-induced odontogenic differentiation of human apical dental papillary stem cells (SCAP) both in vitro and in vivo. Long noncoding RNAs (lncRNAs) have an important role in the odontogenic differentiation of dental pulp stem cells (DPSCs). Methods We examined the altered expression of lncRNAs in SDF-1α-induced odontogenic differentiation of DPSCs by lncRNA microarray and quantitative reverse transcription polymerase chain reaction (qRT-PCR) analyses. Alterations in lncRNA expression during odontogenic differentiation of DPSCs were identified. Moreover, bioinformatic analysis [Gene Ontology (GO) analysis and coding-noncoding gene coexpression (CNC) analysis] was conducted to predict the interactions of lncRNAs and identify core regulatory factors in SDF-1α-induced odontogenic differentiation of DPSCs. Results The microarray analysis identified 206 differentially expressed lncRNAs (134 lncRNAs with upregulated expression and 72 with downregulated expression) at 7 days post‑treatment. The data demonstrated that one lncRNA, AC080037.1, regulates SDF-1α-induced odontogenic differentiation of DPSCs. Our data showed that lncRNA AC080037.1 siRNA suppresses DPSCs migration and the expression of Rho GTPase induced by SDF-1α. Moreover, AC080037.1 knockdown significantly affected SDF-1α- and BMP-2-induced mineralized nodule formation and strongly suppressed Runt-related factor-2 (RUNX-2), DMP-1 and DSPP expression in DPSCs. Conclusions Our


2021 ◽  
Author(s):  
Bo Yao ◽  
Xiaogang Cheng ◽  
Xiaohan Mei ◽  
Jun Chou ◽  
Beidi Zhang ◽  
...  

Abstract SDF-1α cotreatment was shown to have synergistic effects on BMP-2-induced odontogenic differentiation of human apical dental papillary stem cells (SCAP) both in vitro and in vivo. Long noncoding RNAs (lncRNAs) have an important role in the odontogenic differentiation of dental pulp stem cells (DPSCs). We examined the altered expression of lncRNAs in SDF-1α-induced odontogenic differentiation of DPSCs by lncRNA microarray and quantitative reverse transcription polymerase chain reaction (qRT-PCR) analyses. Alterations in lncRNA expression during odontogenic differentiation of DPSCs were identified. Moreover, bioinformatic analysis [Gene Ontology (GO) analysis and coding-noncoding gene coexpression (CNC) analysis] was conducted to predict the interactions of lncRNAs and identify core regulatory factors in SDF-1α-induced odontogenic differentiation of DPSCs. The microarray analysis identified 206 differentially expressed lncRNAs (134 lncRNAs with upregulated expression and 72 with downregulated expression) at 7 days post‑treatment. The data demonstrated that one lncRNA, AC080037.1, regulates SDF-1α-induced odontogenic differentiation of DPSCs. Our data showed that lncRNA AC080037.1 siRNA suppresses DPSCs migration and the expression of Rho GTPase induced by SDF-1α. Moreover, AC080037.1 knockdown significantly affected SDF-1α- and BMP-2-induced mineralized nodule formation and strongly suppressed Runt-related factor-2 (RUNX-2), DMP-1 and DSPP expression in DPSCs. Our results highlighted the significant involvement of one lncRNA, AC080037.1, in the positive regulation of the osteo/odontogenic differentiation of DPSCs and indicated that lncRNA AC080037.1 could be a potential target in regenerative endodontics.These findings reveal how lncRNAs are involved in regulating the SDF-1α-induced odontogenic differentiation of DPSCs, which may further advance translational studies of pulp tissue engineering.


2018 ◽  
Vol 14 (3) ◽  
pp. 297-308 ◽  
Author(s):  
Qiaolin Yang ◽  
Lingfei Jia ◽  
Xiaobei Li ◽  
Runzhi Guo ◽  
Yiping Huang ◽  
...  

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Jintao Wu ◽  
Na Li ◽  
Yuan Fan ◽  
Yanqiu Wang ◽  
Yongchun Gu ◽  
...  

The calcined tooth powder (CTP), a type of allogeneic biomimetic mineralized material, has been confirmed that can promote new bone formation when obtained at high temperature. The aim of this study was to investigate effects of the conditioned medium of calcined tooth powder (CTP-CM) on the osteogenic and odontogenic differentiation of human dental pulp stem cells (hDPSCs) and the underlying mechanisms involved. First, ALP activity assay determined that 200 μg/mL was the optimal concentration of CTP-CM for the following experiments. CTP-CM had no significant effect on the proliferation of hDPSCs as indicated by CCK-8 and FCM analysis. Both the gene and protein (DSPP/DSPP, RUNX2/RUNX2, OCN/OCN, OSX/OSX, OPN/OPN, ALP/ALP, and COL-1/COL-1) expression levels increased in the CTP-CM-induced hDPSC group as compared with those in the control group at day 3 or 7, showing the positive regulation of CTP-CM on the osteo/odontogenic differentiation of hDPSCs. Mechanistically, MAPK signaling pathways were activated after the CTP-CM treatment, and the inhibitors targeting MAPK were identified which weakened the effects of CTM-CM on the committed differentiation of hDPSCs. These findings could lead to the creation of stem cell therapies for dental regeneration.


RSC Advances ◽  
2019 ◽  
Vol 9 (64) ◽  
pp. 37300-37311 ◽  
Author(s):  
Zixiang Wu ◽  
Shujing Liang ◽  
Wenyu Kuai ◽  
Lifang Hu ◽  
Airong Qian

The recent advances of miRNAs and lncRNAs in determining the cell fate of MSCs.


2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Shihua Wang ◽  
Xiaoxia Li ◽  
Robert Chunhua Zhao

Mesenchymal stem cells (MSCs) possess great immunomodulatory capacity which lays the foundation for their therapeutic effects in a variety of diseases. Recently, toll-like receptors (TLR) have been shown to modulate MSC functions; however, the underlying molecular mechanisms are poorly understood. Emerging evidence suggests that long noncoding RNAs (lncRNAs) are an important class of regulators involved in a wide range of biological processes. To explore the potential involvement of lncRNAs in TLR stimulated MSCs, we performed a comprehensive lncRNA and mRNA profiling through microarray. 10.2% of lncRNAs (1733 out of 16967) and 15.1% of mRNA transcripts (1760 out of 11632) were significantly differentially expressed (absolute fold-change≥5 ,Pvalue≤0.05) in TLR3 stimulated MSCs. Furthermore, we characterized the differentially expressed lncRNAs through their classes and length distribution and correlated them with differentially expressed mRNA. Here, we are the first to determine genome-wide lncRNAs expression patterns in TLR3 stimulated MSCs by microarray and this work could provide a comprehensive framework of the transcriptome landscapes of TLR3 stimulated MSCs.


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