Derivation and growth characteristics of dental pulp stem cells from patients of different ages

Wu, Wei; Zhou, Jian; Xu, Chong‐Tao; Zhang, Jie; Jin, Yan‐Jiao; Sun, Geng‐Lin

doi:10.3892/mmr.2015.4106

Cited by 28 publications

(19 citation statements)

References 38 publications

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“…In some cases, we observed a high error of the mean (SEM), which may be the result of biological variability related to primary human tissues obtained from various donors. Data published by other investigators indicate that the DPSCs isolated from the patients at different ages exhibit different doubling time, expression of CD29 antigen, and percentage of apoptotic cells during propagation along with differentiation potential [74], which may have an additional impact on the variability of the cell response. Moreover, the DPSCs isolated from different teeth may possess varied differentiation capacity or immunomodulatory potential [75].…”

Section: Discussionmentioning

confidence: 98%

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

Łabędź-Masłowska

Bryniarska

Kubiak

et al. 2020

IJMS

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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.

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Section: Discussionmentioning

confidence: 98%

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

Łabędź-Masłowska

Bryniarska

Kubiak

et al. 2020

IJMS

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“…Furthermore, DPSCs are non-tumourigenic even after their immortalisation by telomerase overexpression (Wilson et al, 2015). Finally, given that the dental pulp is rather well preserved in mid-to-advanced age patients, DPSCs are also suitable for autologous therapy (Ibarretxe et al, 2012;Kellner et al, 2014;Wu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Notch/Wnt cross-signalling regulates stemness of dental pulp stem cells through expression of neural crest and core pluripotency factors

Uribe-Etxebarria¹,

Luzuriaga²,

García-Gallastegui³

et al. 2017

eCM

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Dental pulp stem cells (DPSCs) from adult teeth express neural crest (NC) markers together with core transcriptional factors associated with stem cell pluripotency, such as Oct4a, Sox2, Rex1, Stella/ Dppa3, Ssea1/Fut4, Lin28 and Nanog. The possibility to boost the natural stemness features of DPSCs by mild methods, that do not involve gene and/or chromatin modification or gene transfection, is highly desirable for cell therapy. Canonical Wnt and Notch are two highly conserved developmental signalling pathways that are involved in NC emergence and stem cell self-renewal. We determined that both pathways coordinate to regulate the expression of core pluripotency and NC factors in DPSCs. Pharmacological inhibition of the Notch pathway for 48 h, by the γ-secretase inhibitor N-[N-(3,5-Difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester (DAPT), abolished the expression of NC and core factors. In addition, it induced a silencing of the canonical Wnt signalling and a clear reduction in the stemness potential of DPSCs, as shown by a reduced ability to generate mature, fully differentiated osteoblasts and adipocytes. Conversely, pharmacological activation of the Wnt pathway for 48 h, by either the glycogen synthase kinase 3 beta (GSK3-β) inhibitor 6-bromoindirubin-3´-oxime (BIO) or the human recombinant protein Wnt-3a, not only largely increased the expression of NC and core factors, but also increased the efficiency of DPSCs to differentiate into mature osteoblasts and adipocytes. These results showed that a short preconditioning activation of Wnt/Notch signalling by small molecules and/or recombinant proteins enhanced the stemness and potency of DPSCs in culture, which could be useful for optimising the therapeutic use of these and other tissue-specific stem cells.

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“…Regarding dental pulp stem, the proliferation rate decreases in elderly patients. 36 We could not con rm this nding in bone marrow derived cells. It is well known, that jawbones have an different bone metabolism.…”

Section: Vitalitymentioning

confidence: 80%

Correlation of Age and Bone Marrow Derived CD 34+ Cells and Leucocytes in 873 Patients.

Pabinger¹,

Dammerer²,

Lothaller³

et al. 2020

Preprint

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Background:The use of regenerative medicine, such as autologous chondrocyte implantation (ACI), matrix associated stem cell therapy (MAST) and bone marrow derived stem cell therapy against arthritis is the gold standard for certain indications. However, the clinical improvement of patients using these novel therapies remains heterogeneous and the reasons for this are not fully understood. The impact of age is always a concern for patients and doctors and elderly patients can only be mobilized with lower total collected CD34+ cells, older age correlates with inferior results, fatty degeneration of the bone marrow, delayed fracture-healing and osteoporosis, but solid data are missing. Purpose:This is the first study to determine the average quantity of leukocytes and CD 34+ cells and their relationship in human bone marrow. Study design: Descriptive Laboratory Study Methods:We evaluated the laboratory results of 873 patients (aged 1-90 years), who underwent stem cell transplantation for non malignant diseases. Results:We found no age-related decrease regarding the number and the vitality of leukocytes and CD 34+ stem cells. The number of bone marrow derived leucocytes and CD 34+ cells showed a strong and significant correlation.Conclusion:The amount of bone marrow derived stem cells can be predicted by leukocytes. This study makes further research possible in order to link clinical outcome to the absolute number of stem cells and leukocytes.An upper age-limit for stem cell therapy can therefore not be defined from the donor-site perspective.Clinical Relevance:The number of leucocytes might be used to predict the amount of stem cells in order to select the ideal patient.

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Derivation and growth characteristics of dental pulp stem cells from patients of different ages

Cited by 28 publications

References 38 publications

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

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

Notch/Wnt cross-signalling regulates stemness of dental pulp stem cells through expression of neural crest and core pluripotency factors

Correlation of Age and Bone Marrow Derived CD 34+ Cells and Leucocytes in 873 Patients.

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