scholarly journals Bone Regeneration Potential of Human Dental Pulp Stem Cells Derived from Elderly Patients and Osteo-Induced by a Helioxanthin Derivative

2020 ◽  
Vol 21 (20) ◽  
pp. 7731
Author(s):  
Marika Sato ◽  
Yoko Kawase-Koga ◽  
Daiki Yamakawa ◽  
Yasuyuki Fujii ◽  
Daichi Chikazu
Keyword(s):  
Stem Cells ◽  
Elderly Patients ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
Young Patients ◽  
Dental Pulp Stem Cells ◽  
Proliferative Potential ◽  
Regenerative Therapy ◽  
Differentiation Potential ◽  
Human Dental Pulp

Human dental pulp stem cells (DPSCs) have high clonogenic and proliferative potential. We previously reported that a helioxanthin derivative (4-(4-methoxyphenyl)pyrido[40,30:4,5]thieno[2–b]pyridine-2-carboxamide (TH)) enhances osteogenic differentiation of DPSCs derived from young patients. However, in the clinical field, elderly patients more frequently require bone regenerative therapy than young patients. In this study, we examined and compared the osteogenic differentiation potential of TH-induced DPSCs from elderly patients and young patients to explore the potential clinical use of DPSCs for elderly patients. DPSCs were obtained from young and elderly patients and cultured in osteogenic medium with or without TH. We assessed the characteristics and osteogenic differentiation by means of specific staining and gene expression analyses. Moreover, DPSC sheets were transplanted into mouse calvarial defects to investigate osteogenesis of TH-induced DPSCs by performing micro-computed tomography (micro-CT). We demonstrated that osteogenic conditions with TH enhance the osteogenic differentiation marker of DPSCs from elderly patients as well as young patients in vitro. In vivo examination showed increased osteogenesis of DPSCs treated with TH from both elderly patients and young patients. Our results suggest that the osteogenic differentiation potential of DPSCs from elderly patients is as high as that of DPSCs from young patients. Moreover, TH-induced DPSCs showed increased osteogenic differentiation potential, and are thus a potentially useful cell source for bone regenerative therapy for elderly patients.

scholarly journals Bone regeneration potential of human dental pulp stem cells derived from elderly patients and induced by a helioxanthin derivative

2020 ◽  
Author(s):  
Marika Sato ◽  
YOKO KAWASE-KOGA ◽  
Daiki Yamakawa ◽  
Yasuyuki Fujii ◽  
Daichi Chikazu
Keyword(s):  
Stem Cells ◽  
Elderly Patients ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
Young Patients ◽  
Dental Pulp Stem Cells ◽  
Proliferative Potential ◽  
Regenerative Therapy ◽  
Differentiation Potential ◽  
Human Dental Pulp

Abstract Background: Human dental pulp stem cells (DPSCs) have the ability to differentiate into multiple lineage cell types including adipogenic, neurogenic, and osteogenic cells. Dental pulp stem cells can be easily collected from extracted teeth and are now considered to be a type of mesenchymal stem cell with higher clonogenic and proliferative potential than bone marrow stem cells. Previous studies have described the osteogenic ability of DPSCs that were isolated from only young patients. However, in fact, elderly patients more frequently require bone regenerative therapy—for example, in alveolar bone defects resulting from periodontal disease—than young patients. We previously reported that 4-(4-methoxyphenyl)pyrido[40,30:4,5]thieno[2,3-b]pyridine-2-carboxamide (TH), a helioxanthin derivative, induces osteogenic differentiation of DPSCs derived from young patients. However, the effect of TH on the osteogenic differentiation potential of DPSCs derived from elderly patients remains unknown. Therefore, the present study aimed to examine and compare the osteogenic differentiation potential of TH-induced DPSCs from elderly patients and young patients to explore the potential clinical use of DPSCs for elderly patients.Methods: Dental pulp stem cells were obtained from the dental pulp of teeth of healthy young patients (18-39 years old) and healthy elderly patients (40-67 years old) and cultured in regular medium and osteogenic medium with or without TH. We assessed the morphological characteristics, proliferation, and osteogenic differentiation of DPSCs from both young and elderly patients. Moreover, DPSC sheets were transplanted into mouse calvarial defects to investigate osteogenesis of TH-induced DPSCs in vivo.Results: We demonstrated that osteogenic conditions with TH induce the osteogenic differentiation and osteogenesis of DPSCs from elderly patients as well as young patients more than osteogenic conditions without TH. Conclusions: Our results suggested that the osteogenic differentiation potential of DPSCs from elderly patients is as high as that of DPSCs from young patients. Moreover, TH-induced DPSCs show increased osteogenic differentiation potential, and they can be a useful cell source for bone regenerative therapy for not only young patients but also elderly patients.

scholarly journals Human Dental Pulp Stem Cells Exhibit Osteogenic Differentiation Potential

2020 ◽  
Vol 15 (1) ◽  
pp. 229-236
Author(s):  
Sadia Awais ◽  
Samira Shabbir Balouch ◽  
Nabeela Riaz ◽  
Mahmood S Choudhery
Keyword(s):  
Stem Cells ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
Histological Analysis ◽  
Morphological Changes ◽  
Dental Pulp Stem Cells ◽  
Osteogenic Potential ◽  
Proliferative Potential ◽  
Differentiation Potential ◽  
Human Dental Pulp

AbstractBone regeneration after trauma, pathologic and surgical procedures is considered a major medical challenge. Due to limitations in using conventional approaches, cell based regenerative strategies may provide an alternative option to address such issues. In the current study, we sought to determine the osteogenic potential of dental pulp stem cells (DPSCs) isolated from impacted 3rd molars. DPSCs were isolated from human dental pulp tissue (n=6) using explant culture. Growth characteristics of DPSCs were determined using plating efficiency, and the number and time of population doublings. After characterization, DPSCs were induced to differentiate into osteoblasts and were assessed using polymerase chain reactions (PCR) and histological analysis. Results indicated that DPSCs can be isolated from impacted human third molars, and that DPSCs exhibited typical fibroblastic morphology and excellent proliferative potential. In addition, morphological changes, histological analysis and expression of lineage specific genes confirmed osteogenic differentiation of DPSCs. In conclusion, DPSCs isolated from impacted 3rd molars have high proliferative potential and ability to differentiate into osteoblasts.

scholarly journals Multilineage Differentiation Potential of Human Dental Pulp Stem Cells—Impact of 3D and Hypoxic Environment on Osteogenesis In Vitro

2020 ◽  
Vol 21 (17) ◽  
pp. 6172
Author(s):  
Anna Labedz-Maslowska ◽  
Natalia Bryniarska ◽  
Andrzej Kubiak ◽  
Tomasz Kaczmarzyk ◽  
Malgorzata Sekula-Stryjewska ◽  
...  
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Osteogenic Potential ◽  
Stem Cell Population ◽  
Differentiation Potential ◽  
Human Dental Pulp

Human dental pulp harbours unique stem cell population exhibiting mesenchymal stem/stromal cell (MSC) characteristics. This study aimed to analyse the differentiation potential and other essential functional and morphological features of dental pulp stem cells (DPSCs) in comparison with Wharton’s jelly-derived MSCs from the umbilical cord (UC-MSCs), and to evaluate the osteogenic differentiation of DPSCs in 3D culture with a hypoxic microenvironment resembling the stem cell niche. Human DPSCs as well as UC-MSCs were isolated from primary human tissues and were subjected to a series of experiments. We established a multiantigenic profile of DPSCs with CD45−/CD14−/CD34−/CD29+/CD44+/CD73+/CD90+/CD105+/Stro-1+/HLA-DR− (using flow cytometry) and confirmed their tri-lineage osteogenic, chondrogenic, and adipogenic differentiation potential (using qRT-PCR and histochemical staining) in comparison with the UC-MSCs. The results also demonstrated the potency of DPSCs to differentiate into osteoblasts in vitro. Moreover, we showed that the DPSCs exhibit limited cardiomyogenic and endothelial differentiation potential. Decreased proliferation and metabolic activity as well as increased osteogenic differentiation of DPSCs in vitro, attributed to 3D cell encapsulation and low oxygen concentration, were also observed. DPSCs exhibiting elevated osteogenic potential may serve as potential candidates for a cell-based product for advanced therapy, particularly for bone repair. Novel tissue engineering approaches combining DPSCs, 3D biomaterial scaffolds, and other stimulating chemical factors may represent innovative strategies for pro-regenerative therapies.

Chrysin induces osteogenic differentiation of human dental pulp stem cells

2021 ◽  
Vol 400 (2) ◽  
pp. 112466
Author(s):  
J.F. Huo ◽  
M.L. Zhang ◽  
X.X. Wang ◽  
D.H. Zou
Keyword(s):  
Stem Cells ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Human Dental Pulp

scholarly journals Functionalization of Polycaprolactone Scaffolds with Hyaluronic Acid and β-TCP Facilitates Migration and Osteogenic Differentiation of Human Dental Pulp Stem Cells In Vitro

2015 ◽  
Vol 21 (3-4) ◽  
pp. 729-739 ◽  
Author(s):  
Jonas Jensen ◽  
David Christian Evar Kraft ◽  
Helle Lysdahl ◽  
Casper Bindzus Foldager ◽  
Muwan Chen ◽  
...  
Keyword(s):  
Stem Cells ◽  
Hyaluronic Acid ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Human Dental Pulp

Berberine Promotes Osteogenic Differentiation of Human Dental Pulp Stem Cells Through Activating EGFR-MAPK-Runx2 Pathways

2019 ◽  
Vol 26 (3) ◽  
pp. 1677-1685 ◽  
Author(s):  
Bing-Chang Xin ◽  
Qi-Shan Wu ◽  
Song Jin ◽  
Ai-Hua Luo ◽  
De-Gang Sun ◽  
...  
Keyword(s):  
Stem Cells ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Human Dental Pulp

scholarly journals Exosomal circLPAR1 Promoted Osteogenic Differentiation of Homotypic Dental Pulp Stem Cells by Competitively Binding to hsa-miR-31

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Liangkun Xie ◽  
Zheng Guan ◽  
Mingzhu Zhang ◽  
Sha Lyu ◽  
Nattawut Thuaksuban ◽  
...  
Keyword(s):  
Stem Cells ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
Expression Profiles ◽  
Circular Rna ◽  
Inhibitory Effect ◽  
Dental Pulp Stem Cells ◽  
Great Promise ◽  
Human Dental Pulp ◽  
Osteogenic Induction

Human dental pulp stem cells (DPSCs) hold great promise in bone regeneration. However, the exact mechanism of osteogenic differentiation of DPSCs remains unknown, especially the role of exosomes played in. The DPSCs were cultured and received osteogenic induction; then, exosomes from osteogenic-induced DPSCs (OI-DPSC-Ex) at different time intervals were isolated and sequenced for circular RNA (circRNA) expression profiles. Gradually, increased circular lysophosphatidic acid receptor 1 (circLPAR1) expression was found in the OI-DPSC-Ex coincidentally with the degree of osteogenic differentiation. Meanwhile, results from osteogenic differentiation examinations showed that the OI-DPSC-Ex had osteogenic effect on the recipient homotypic DPSCs. To investigate the mechanism of exosomal circLPAR1 on osteogenic differentiation, we verified that circLPAR1 could competently bind to hsa-miR-31, by eliminating the inhibitory effect of hsa-miR-31 on osteogenesis, therefore promoting osteogenic differentiation of the recipient homotypic DPSCs. Our study showed that exosomal circRNA played an important role in osteogenic differentiation of DPSCs and provided a novel way of utilization of exosomes for the treatment of bone deficiencies.

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