scholarly journals Nanoparticles of Bioactive Glass Enhance Biodentine Bioactivity on Dental Pulp Stem Cells

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2684
Author(s):  
Camila Corral Nunez ◽  
Diego Altamirano Gaete ◽  
Miguel Maureira ◽  
Javier Martin ◽  
Cristian Covarrubias
Keyword(s):  
Stem Cells ◽  
Cell Viability ◽  
Bioactive Glass ◽  
Dental Pulp ◽  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Dental Pulp Stem Cells ◽  
Alp Activity ◽  
Odontogenic Differentiation ◽  
Human Dental Pulp

This study aimed to investigate the cytotoxicity and bioactivity of a novel nanocomposite containing nanoparticles of bioactive glass (nBGs) on human dental pulp stem cells (hDPSCs). nBGs were synthesized by the sol–gel method. Biodentine (BD) nanocomposites (nBG/BD) were prepared with 2 and 5% wt of nBG content; unmodified BD and glass ionomer cement were used as references. Cell viability and attachment were evaluated after 3, 7 and 14 days. Odontogenic differentiation was assessed with alkaline phosphatase (ALP) activity after 7 and 14 days of exposure. Cells successfully adhered and proliferated on nBG/BD nanocomposites, cell viability of nanocomposites was comparable with unmodified BD and higher than GIC. nBG/BD nanocomposites were, particularly, more active to promote odontogenic differentiation, expressed as higher ALP activity of hDPSCs after 7 days of exposure, than neat BD or GIC. This novel nanocomposite biomaterial, nBG/BD, allowed hDPSC attachment and proliferation and increased the expression of ALP, upregulated in mineral-producing cells. These findings open opportunities to use nBG/BD in vital pulp therapies.

scholarly journals Human Dental Pulp Stem Cells via the NF-κB Pathway

2015 ◽  
Vol 36 (5) ◽  
pp. 1725-1734 ◽  
Author(s):  
Shensheng Gu ◽  
Shujun Ran ◽  
Feng Qin ◽  
Dong Cao ◽  
Jia Wang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Marker Genes ◽  
Nodule Formation ◽  
Dependent Manner ◽  
Odontoblastic Differentiation ◽  
Alp Activity ◽  
Odontogenic Differentiation ◽  
Human Dental Pulp

Background/Aims: Odontogenic differentiation of human dental pulp stem cells (HDPSCs) is regulated by multiple factors and signaling molecules. However, their regulatory mechanisms are not completely understood. In this study, we investigated the role of Zinc finger and BTB domain-containing 20 (ZBTB20) in odontoblastic differentiation of HDPSCs. Methods: HDPSCs were obtained from human third molars and ZBTB20 expression was examined by qRT-PCR and western blot. Their osteo/odontogenic differentiation and the involvement of NF-κB pathway were subsequently investigated. Results: The expression of ZBTB20 is upregulated in a time-dependent manner during odontogenic differentiation of hDPSCs. Inhibition of ZBTB20 reduced osteogenic medium (OM)-induced odontogenic differentiation, reflected in decreased alkaline phosphatase (ALP) activity, mineralized nodule formation and mRNA expression of odonto/osteogenic marker genes. In contrast, overexpression of ZBTB20 enhanced ALP activity, mineralization and the expression of differentiation marker genes. Furthermore, the expression of IκBa was increased by ZBTB20 silencing in HDPSCs, whereas ZBTB20 overexpression decreased IκBa and enhanced nuclear NF-κB p65. Inhibition of the NF-κB pathway significantly suppressed the odontogenic differentiation of HDPSCs induced by ZBTB20. Conclusion: This study shows for the first time that ZBTB20 plays an important role during odontoblastic differentiation of HDPSCs and may have clinical implications for regenerative endodontics.

scholarly journals The Biomineralization of a Bioactive Glass-Incorporated Light-Curable Pulp Capping Material Using Human Dental Pulp Stem Cells

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Soo-Kyung Jun ◽  
Jung-Hwan Lee ◽  
Hae-Hyoung Lee
Keyword(s):  
Stem Cells ◽  
Bioactive Glass ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Similar Amount ◽  
Alizarin Red ◽  
Ion Concentrations ◽  
Pulp Capping ◽  
Alp Activity ◽  
Human Dental Pulp

The aim of this study was to investigate the biomineralization of a newly introduced bioactive glass-incorporated light-curable pulp capping material using human dental pulp stem cells (hDPSCs). The product (Bioactive® [BA]) was compared with a conventional calcium hydroxide-incorporated (Dycal [DC]) and a light-curable (Theracal® [TC]) counterpart. Eluates from set specimens were used for investigating the cytotoxicity and biomineralization ability, determined by alkaline phosphatase (ALP) activity and alizarin red staining (ARS). Cations and hydroxide ions in the extracts were measured. An hDPSC viability of less than 70% was observed with 50% diluted extract in all groups and with 25% diluted extract in the DC. Culturing with 12.5% diluted BA extract statistically lowered ALP activity and biomineralization compared to DC (p<0.05), but TC did not (p>0.05). Ca (~110 ppm) and hydroxide ions (pH 11) were only detected in DC and TC. Ionic supplement-added BA, which contained similar ion concentrations as TC, showed similar ARS mineralization compared to TC. In conclusion, the BA was similar to, yet more cytotoxic to hDPSCs than, its DC and TC. The BA was considered to stimulate biomineralization similar to DC and TC only when it released a similar amount of Ca and hydroxide ions.

scholarly journals Effects of Different Calcium Silicate Cements on the Inflammatory Response and Odontogenic Differentiation of Lipopolysaccharide-Stimulated Human Dental Pulp Stem Cells

Materials ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1259 ◽  
Author(s):  
Minsun Chung ◽  
Sukjoon Lee ◽  
Dongzi Chen ◽  
Ukseong Kim ◽  
Yaelim Kim ◽  
...  
Keyword(s):  
Stem Cells ◽  
Inflammatory Response ◽  
Cell Viability ◽  
Calcium Silicate ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Cell Counting ◽  
Odontogenic Differentiation ◽  
Human Dental Pulp ◽  
Calcium Silicate Cements

This study aimed to analyze the effects of different calcium silicate cements (CSCs) on the inflammatory response and odontogenic differentiation of lipopolysaccharide-stimulated human dental pulp stem cells. Human dental pulp stem cells (hDPSCs) were stimulated with lipopolysaccharide (LPS) to induce inflammation. These LPS-induced dental pulp stem cells (LDPSCs) were cultured with ProRoot MTA, Biodentine, Retro MTA, and Dycal. Cell viability was evaluated using the Cell Counting Kit-8 assay. Interleukin (IL)-6, IL-8, and transforming growth factor (TGF)-β1 cytokine levels were assessed using the enzyme-linked immunosorbent assay. The expressions of alkaline phosphatase (ALP), osteocalcin, and runt-related transcription factor 2 (RUNX2) were analyzed through real-time polymerase chain reaction. ProRoot MTA, Biodentine, and Retro MTA did not significantly decrease the cell viability of LDPSCs for up to 48 h (p < 0.05). Retro MTA significantly decreased the expression of IL-6 and IL-8 by LDPSCs. ProRoot MTA and Biodentine significantly reduced TGF-β expression by LDPSCs (p < 0.05). Regarding odontogenic differentiation, all CSCs had no effect on ALP expression but increased the production of RUNX2 at 12 h.

scholarly journals The role of osteomodulin on osteo/odontogenic differentiation in human dental pulp stem cells

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Wenzhen Lin ◽  
Li Gao ◽  
Wenxin Jiang ◽  
Chenguang Niu ◽  
Keyong Yuan ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Odontogenic Differentiation ◽  
Human Dental Pulp

scholarly journals Pentraxin-3 Modulates Osteogenic/Odontogenic Differentiation and Migration of Human Dental Pulp Stem Cells

2019 ◽  
Vol 20 (22) ◽  
pp. 5778
Author(s):  
Yeon Kim ◽  
Joo-Yeon Park ◽  
Hyun-Joo Park ◽  
Mi-Kyoung Kim ◽  
Yong-Il Kim ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Pulp ◽  
Tissue Repair ◽  
Therapeutic Potential ◽  
Dental Pulp Stem Cells ◽  
Pentraxin 3 ◽  
Odontogenic Differentiation ◽  
Human Dental Pulp ◽  
And Migration

Pentraxin-3 (PTX3) is recognized as a modulator of inflammation and a mediator of tissue repair. In this study, we characterized the role of PTX3 on some biological functions of human dental pulp stem cells (HDPSCs). The expression level of PTX3 significantly increased during osteogenic/odontogenic differentiation of HDPSCs, whereas the knockdown of PTX3 decreased this differentiation. Silencing of PTX3 in HDPSCs inhibited their migration and C-X-C chemokine receptor type 4 (CXCR4) expression. Our present study indicates that PTX3 is involved in osteogenic/odontogenic differentiation and migration of HDPSCs, and may contribute to the therapeutic potential of HDPSCs for regeneration and repair.

scholarly journals In vitro induction of odontogenic activity of human dental pulp stem cells by white Portland cement enriched with zirconium oxide and zinc oxide components

2019 ◽  
Vol 13 (1) ◽  
pp. 3-10 ◽  
Author(s):  
Saeed Rahimi ◽  
Sadegh Salarinasab ◽  
Negin Ghasemi ◽  
Reza Rahbarghazi ◽  
Shahriar Shahi ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Pulp ◽  
Zirconium Oxide ◽  
Dental Pulp Stem Cells ◽  
Ion Release ◽  
Zno Nps ◽  
Alp Activity ◽  
Human Dental Pulp ◽  
White Portland Cement

Background. The aim of this in vitro study was to investigate the effect of zinc oxide (ZnO) and zirconium oxide (ZrO2) microparticles (MPs) and nanoparticles (NPs) in combination with white Portland cement (WPC) on odontogenic capacity of human dental pulp stem cells over a period of 21 days. Methods. Synthesized ZnO and ZrO2 particles were characterized using scanning electron microscopy and transmission electron microscopy. The viability of human dental pulp stem cells was measured by a 3-(4,5-dimethylthiazolyl-2-yl)-2,5- diphenyltetrazolium bromide assay at 7-, 14- and 21-day intervals after seeding on WPC disks enriched with ZnO and ZrO2 MPs and NPs. Odontogenic potential of ZnO and ZrO2 particles in combination with WPC was investigated by alkaline phosphatase (ALP) activity and ionized calcium level of supernatant culture media at different time intervals. Data were analyzed using one-way ANOVA and post hoc Tukey tests. Results. All the materials exhibited cell viability over a 21-day period, except for WPC with ZnO NPs on day 7, although it was not statistically significant (P>0.05). The ALP activity and ionized calcium level increased in all the groups compared to the control group (P<0.05). ZnO NPs had superior effect on odontogenic activity and calcium ion release compared to ZnO MPs (P=0.046). There was no significant difference between ZrO2 MPs and NPs in odontogenic activity (P>0.05). Conclusion. WPC enriched with ZnO and ZrO2 increased ALP activity and calcium ion release of human dental pulp stem cells over a period of 21 days in vitro.

scholarly journals The effect of scaffold architecture on odontogenic differentiation of human dental pulp stem cells

Biomaterials ◽  
2011 ◽  
Vol 32 (31) ◽  
pp. 7822-7830 ◽  
Author(s):  
Jing Wang ◽  
Haiyun Ma ◽  
Xiaobing Jin ◽  
Jiang Hu ◽  
Xiaohua Liu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Odontogenic Differentiation ◽  
Human Dental Pulp ◽  
Scaffold Architecture
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