Odontogenic differentiation of human dental pulp cells induced by silicate-based bioceramics via activation of P38/MEPE pathway

RSC Advances ◽  
2015 ◽  
Vol 5 (89) ◽  
pp. 72536-72543 ◽  
Author(s):  
Xiaomeng Zhang ◽  
Chengtie Wu ◽  
Jiang Chang ◽  
Jiao Sun

Ca7Si2P2O16 bioceramic significantly enhanced odontogenic protein expression (ALP activity and staining) of hDPCs.

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Shihui Jiang ◽  
Zhaoxia Yu ◽  
Lanrui Zhang ◽  
Guanhua Wang ◽  
Xiaohua Dai ◽  
...  

Abstract This study aimed at evaluate the effects of different aperture-sized type I collagen/silk fibroin (CSF) scaffolds on the proliferation and differentiation of human dental pulp cells (HDPCs). The CSF scaffolds were designed with 3D mapping software Solidworks. Three different aperture-sized scaffolds (CSF1–CSF3) were prepared by low-temperature deposition 3D printing technology. The morphology was observed by scanning electron microscope (SEM) and optical coherence tomography. The porosity, hydrophilicity and mechanical capacity of the scaffold were detected, respectively. HDPCs (third passage, 1 × 105 cells) were seeded into each scaffold and investigated by SEM, CCK-8, alkaline phosphatase (ALP) activity and HE staining. The CSF scaffolds had porous structures with macropores and micropores. The macropore size of CSF1 to CSF3 was 421 ± 27 μm, 579 ± 36 μm and 707 ± 43 μm, respectively. The porosity was 69.8 ± 2.2%, 80.1 ± 2.8% and 86.5 ± 3.3%, respectively. All these scaffolds enhanced the adhesion and proliferation of HDPCs. The ALP activity in the CSF1 group was higher than that in the CSF3 groups (P < 0.01). HE staining showed HDPCs grew in multilayer within the scaffolds. CSF scaffolds significantly improved the adhesion and ALP activity of HDPCs. CSF scaffolds were promising candidates in dentine-pulp complex regeneration.


Bioengineered ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 829-840
Author(s):  
Jingzhou Li ◽  
Qianyi Deng ◽  
Wenguo Fan ◽  
Qi Zeng ◽  
Hongwen He ◽  
...  

2015 ◽  
Vol 93 (6) ◽  
pp. 587-595 ◽  
Author(s):  
Su Mi Woo ◽  
Kyung Joo Seong ◽  
Sang Jin Oh ◽  
Hong Ju Park ◽  
Sun Hun Kim ◽  
...  

The present study is aimed at investigating the effects of the exogenous estrogen 17β-estradiol (E2) on odontoblastic differentiation in human dental pulp cells (HDPCs) immotalized with hTERT gene and their molecular mechanism. Proliferation was detected by BrdU assay, and odontoblast differentiation induction was evaluated by the expression of dentin sialophosphoprotein (DSPP), dentin sialoprotein (DSP) and dentin matrix protein1 (DMP1), and alkaline phosphatase (ALP) activity and mineralization. Estrogen receptor-α (ER-α), c-Src, and mitogen-activated protein kinases (MAPKs) were examined and their inhibitors were used to determine the roles on odontogenic induction. E2 significantly promoted the HDPC proliferation, which was mediated by extracellular signal-related kinase 1/2. E2 upregulated DSPP, DSP, and DMP1 as the odontogenic differentiation markers and enhanced ALP activity and mineralization. E2 increased phosphorylation of ER-α and fulvestrant, an ER downregulator, significantly downregulated DSPP, DMP1, and DSP induced by E2. Moreover, E2 treatment activated c-Src and MAPKs upon odontogenic induction, whereas chemical inhibition of c-Src and MAPKs decreased expression of DSPP, DMP1, and DSP and mineralization augmented by E2. Moreover, fulvestrant reduced E2-induced phosphorylation of c-Src and MAPK and inhibition of c-Src by PP2 attenuated activation of MAPKs during E2-induced odontoblastic differentiation. Taken together, these results indicated that E2 stimulates odontoblastic differentiation of HDPCs via coordinated regulation of ER-α, c-Src, and MAPK signaling pathways, which may play a key role in the regeneration of dentin.


2018 ◽  
Vol 8 (2) ◽  
pp. 258-266 ◽  
Author(s):  
Wenhao Zhu ◽  
Xuejun Gao ◽  
Xiaoying Zou ◽  
Werner E. G. Müller ◽  
Shunfeng Wang ◽  
...  

2015 ◽  
Vol 41 (5) ◽  
pp. 640-645 ◽  
Author(s):  
Deqian Zhang ◽  
Qimeng Li ◽  
Lijia Rao ◽  
Baicheng Yi ◽  
Qiong Xu

Bioengineered ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 449-462 ◽  
Author(s):  
Qi-Meng Li ◽  
Jin-Ling Li ◽  
Zhi-Hui Feng ◽  
Huan-Cai Lin ◽  
Qiong Xu

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