scholarly journals Viability and Alkaline Phosphatase Activity of Human Dental Pulp Cells after Exposure to Yellowfin Tuna Bone-Derived Hydroxyapatite In Vitro

2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Tetiana Haniastuti ◽  
Heni Susilowati ◽  
Margareta Rinastiti
Keyword(s):  
Alkaline Phosphatase ◽  
Dental Pulp ◽  
Colorimetric Assay ◽  
Third Molar ◽  
Yellowfin Tuna ◽  
Dental Pulp Cells ◽  
Alp Activity ◽  
High Calcium ◽  
Pulp Cells

The bone of yellowfin tuna (Thunnus albacares) contains high calcium and phosphor and can be synthesized into hydroxyapatite (HA). Due to its mineral content and similarity in chemical composition with human hard tissue, HA may have potency as a pulp capping material. The aim of this in vitro study was to evaluate the viability and alkaline phosphatase (ALP) activity of dental pulp cells after exposure to HA synthesized from yellowfin tuna bone (THA). Pulp cells were isolated from human-impacted third molar. To evaluate the viability of the pulp cells, the cells were cultured and exposed to various concentrations (6.25 to 200 μg/ml) of THA for 24, 48, and 72 hours. For ALP activity assay, pulp cells were cultured with odontoblastic differentiation media and exposed to THA for 7, 11, and 15 days. ALP activity was then determined using an ALP colorimetric assay kit. Results showed that the viability of the cells was more than 91% after exposure to various concentrations of THA and the cells demonstrated normal cell morphology in all observation periods. The ALP activity test revealed that groups exposed to THA for 7, 11, and 15 days showed higher ALP activity than the control groups ( p < 0.05 ). It is concluded that THA had no cytotoxic effect on pulp cells; furthermore, it enhanced proliferation as well as ALP activity of the pulp cells.

scholarly journals Influence of Hydrogen Peroxide on Mineralization in Dental Pulp Cells: A Systematic Review

2021 ◽  
Vol 2 ◽  
Author(s):  
Alexandre Henrique dos Reis-Prado ◽  
Isadora Rodrigues Grossi ◽  
Hebertt Gonzaga dos Santos Chaves ◽  
Carolina Bosso André ◽  
Luís Fernando dos Santos Alves Morgan ◽  
...  
Keyword(s):  
Systematic Review ◽  
Hydrogen Peroxide ◽  
Dental Pulp ◽  
Cochrane Library ◽  
Dental Pulp Cells ◽  
Pulp Tissue ◽  
Alp Activity ◽  
Dental Hard Tissues ◽  
Pulp Cells

Background: Dental bleaching agents show the ability to permeate through dental hard tissues, which may lead to pulp tissue changes. This systematic review (PROSPERO register: CRD42020213767) is aimed at understanding the effects of bleaching agents on the process of mineralization of the pulp tissue.Methods: Only in vitro studies evaluating the influence of hydrogen peroxide (HP) on mineralization in dental pulp cells were included. Studies without a non-bleached control group or cells after co-treatment with a bleaching agent other than HP and/or carbamide peroxide were excluded. The primary outcomes evaluated were alkaline phosphatase (ALP) activity and mineralized nodule deposition. The mineralization markers analysis in dental pulp cells and the cell viability were considered secondary outcomes. Two independent authors conducted a systematic search (PubMed/MEDLINE, Scopus, Embase, Cochrane Library, and OpenGrey until January 2021) with no language restrictions and performed data extraction. The quality assessment was appraised according to a modified Joanna Briggs Institute critical appraisal checklist.Results: The search resulted in 473 studies, and 11 were considered eligible. Overall, a reduction in the process of mineralization was observed among pulp cells after bleaching. A reduction in the ALP activity was reported in the mostly bleached groups using different protocols and analysis periods of nine studies. Regarding mineralized nodule deposition, 6 studies reported a significant reduction from 7 to 21 days among bleached groups. Of those three studies that investigated other mineralization markers, two found a reduction in the expression of dentin matrix acidic phosphoprotein (DMP)-1, dentin sialophosphoprotein (DSPP), and matrix extracellular phosphoglycoprotein (MEPE) among some bleaching gel concentrations. In contrast, one study showed a greater expression of osteopontin (OPN) and osteocalcin (OCN) in 100 μmol/L HP after 5 or 10 min of exposure, and another study showed significant induction of DSPP in concentrations of up to 0.5 mmol/L HP.Conclusion: Especially, high concentrations of bleaching gel reduce the potential of mineralization in pulp cells in in vitro studies; however, different HP concentrations, bleaching protocols, and analysis periods can influence this outcome.

In vitro culture of human dental pulp cells: some aspects of cells emerging early from the explant

1997 ◽  
Vol 1 (3) ◽  
pp. 131-140 ◽  
Author(s):  
L. Stanislawski ◽  
J. P. Carreau ◽  
M. Pouchelet ◽  
Z. H. J. Chen ◽  
M. Goldberg
Keyword(s):  
In Vitro Culture ◽  
Dental Pulp ◽  
Dental Pulp Cells ◽  
Human Dental Pulp Cells ◽  
Human Dental Pulp ◽  
Pulp Cells

The Effect of Mineral Trioxide Aggregate on the Mineralization Ability of Rat Dental Pulp Cells: An In Vitro Study

2008 ◽  
Vol 34 (9) ◽  
pp. 1057-1060 ◽  
Author(s):  
Yoshiyuki Yasuda ◽  
Masafumi Ogawa ◽  
Toshiya Arakawa ◽  
Tomoko Kadowaki ◽  
Takashi Saito
Keyword(s):  
Dental Pulp ◽  
Mineral Trioxide Aggregate ◽  
In Vitro Study ◽  
Vitro Study ◽  
Dental Pulp Cells ◽  
Pulp Cells

scholarly journals Enhanced Differentiation of Dental Pulp Cells Cultured on Microtubular Polymer Scaffolds In Vitro

2017 ◽  
Vol 3 (2) ◽  
pp. 94-105 ◽  
Author(s):  
Morteza Haeri ◽  
Karen Sagomonyants ◽  
Mina Mina ◽  
Liisa T. Kuhn ◽  
A. Jon Goldberg
Keyword(s):  
Dental Pulp ◽  
Polymer Scaffolds ◽  
Dental Pulp Cells ◽  
Pulp Cells ◽  
Cells Cultured

scholarly journals Effects of different aperture-sized type I collagen/silk fibroin scaffolds on the proliferation and differentiation of human dental pulp cells

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Shihui Jiang ◽  
Zhaoxia Yu ◽  
Lanrui Zhang ◽  
Guanhua Wang ◽  
Xiaohua Dai ◽  
...  
Keyword(s):  
Silk Fibroin ◽  
Dental Pulp ◽  
Type I Collagen ◽  
Type I ◽  
Dental Pulp Cells ◽  
Human Dental Pulp Cells ◽  
Alp Activity ◽  
Proliferation And Differentiation ◽  
Human Dental Pulp ◽  
Pulp Cells

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 &lt; 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.

scholarly journals Highly Proliferative Immortalized Human Dental Pulp Cells Retain the Odontogenic Phenotype when Combined with a Beta-Tricalcium Phosphate Scaffold and BMP2

2020 ◽  
Vol 2020 ◽  
pp. 1-18 ◽  
Author(s):  
Xiangfen Li ◽  
Liu Wang ◽  
Qin Su ◽  
Ling Ye ◽  
Xuedong Zhou ◽  
...  
Keyword(s):  
Tricalcium Phosphate ◽  
Dental Pulp ◽  
Biological Behavior ◽  
Dental Pulp Cells ◽  
Differentiation Potential ◽  
Human Dental Pulp Cells ◽  
Beta Tricalcium Phosphate ◽  
Human Dental Pulp ◽  
Pulp Cells

Human dental pulp cells (HDPCs) play a vital role in dentin formation and reparative dentinogenesis, which indicated their potential application in regenerative medicine. However, HDPCs, which can only be obtained from scarce human pulp tissues, also have a limited lifespan in vitro, and stem cells usually lose their original characteristics over a large number of passages. To overcome these challenges, we successfully immortalized human dental pulp cells using the piggyBac system which was employed to efficiently overexpress the SV40 T-Ag, and we then comprehensively described the cell biological behavior. The immortalized human dental pulp cells (iHDPCs) acquired long-term proliferative activity and expressed most HDPC markers. The iHDPCs maintained multiple differentiation potential and could be induced to differentiate into chondrogenic, osteogenic, and adipogenic cells in vitro. We also proved that the iHDPCs gained a stronger ability to migrate than the primary cells, while apoptosis was inhibited. Furthermore, highly proliferative iHDPCs displayed no oncogenicity when subcutaneously implanted into athymic nude mice. Finally, iHDPCs exhibited odontogenic differentiation ability and secreted dentin sialophosphoprotein (DSPP) when combined with a beta-tricalcium phosphate scaffold and bone morphogenetic protein-2 (BMP2) in vivo. Conclusively, the established iHDPCs are a valuable resource for mechanistic study of dental pulp cell differentiation and dental pulp injury repair, as well as for applications in tooth regeneration.

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