Banking Stem Cells from Human Exfoliated Deciduous Teeth (SHED): Saving for the Future

2009 ◽  
Vol 33 (4) ◽  
pp. 289-294 ◽  
Author(s):  
Vipin Arora ◽  
Pooja Arora ◽  
AK Munshi
Keyword(s):  
Stem Cells ◽  
Primary Teeth ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
The Past ◽  
Donor Cells ◽  
Simple Alternative ◽  
Wisdom Teeth ◽  
Technical Details ◽  
Human Exfoliated Deciduous Teeth

Tooth derived cells are readily accessible and provide an easy and minimally invasive way to obtain and store stem cells for future use. Banking ones own tooth-derived stem cells is a reasonable and simple alternative to harvesting stem cells from other tissues. Obtaining stem cells from human exfoliated deciduous teeth (SHED) is simple and convenient, with little or no trauma. Every child loses primary teeth, which creates the perfect opportunity to recover and store this convenient source of stem cells – should they be needed to treat future injuries or ailments and presents a far better alternative to simply discarding the teeth or storing them as mementos from the past. Furthermore,using ones own stem cells poses few, if any, risks for developing immune reactions or rejection following transplantation and also eliminates the potential of contracting disease from donor cells. Stem cells can also be recovered from developing wisdom teeth and permanent teeth. Individuals have different opportunities at different stages of their life to bank these valuable cells. It is best to recover stem cells when a child is young and healthy and the cells are strong and proliferative. The purpose of this review is to discuss the present scenario as well as the technical details of tooth banking as related to SHED cells.

Stem Cells Derived from Human Exfoliated Deciduous teeth [shed] in Neuronal Disorders: A Review

2020 ◽  
Vol 16 ◽  
Author(s):  
Minu Anoop ◽  
Indrani Datta
Keyword(s):  
Stem Cells ◽  
Neurodegenerative Diseases ◽  
Dental Pulp ◽  
Therapeutic Potential ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Proliferative Potential ◽  
Pulp Tissue ◽  
Human Exfoliated Deciduous Teeth

: Most conventional treatments for neurodegenerative diseases fail due to their focus on neuroprotection rather than neurorestoration. Stem cell‐based therapies are becoming a potential treatment option for neurodegenerative diseases as they can home in, engraft, differentiate and produce factors for CNS recovery. Stem cells derived from human dental pulp tissue differ from other sources of mesenchymal stem cells due to their embryonic neural crest origin and neurotrophic property. These include both dental pulp stem cells [DPSCs] from dental pulp tissues of human permanent teeth and stem cells from human exfoliated deciduous teeth [SHED]. SHED offer many advantages over other types of MSCs such as good proliferative potential, minimal invasive procurement, neuronal differentiation and neurotrophic capacity, and negligible ethical concerns. The therapeutic potential of SHED is attributed to the paracrine action of extracellularly released secreted factors, specifically the secretome, of which exosomes is a key component. SHED and its conditioned media can be effective in neurodegeneration through multiple mechanisms, including cell replacement, paracrine effects, angiogenesis, synaptogenesis, immunomodulation, and apoptosis inhibition, and SHED exosomes offer an ideal refined bed-to-bench formulation in neurodegenerative disorders. However, in spite of these advantages, there are still some limitations of SHED exosome therapy, such as the effectiveness of long-term storage of SHED and their exosomes, the development of a robust GMP-grade manufacturing protocol, optimization of the route of administration, and evaluation of the efficacy and safety in humans. In this review, we have addressed the isolation, collection and properties of SHED along with its therapeutic potential on in vitro and in vivo neuronal disorder models as evident from the published literature.

scholarly journals Therapeutic applications of stem cells from human exfoliated deciduous teeth: a review

2020 ◽  
Vol 8 (9) ◽  
pp. 3413
Author(s):  
Mani Baweja
Keyword(s):  
Stem Cells ◽  
Animal Studies ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Oral Diseases ◽  
Dental Stem Cells ◽  
Medline Search ◽  
Therapeutic Applications ◽  
Human Exfoliated Deciduous Teeth

Dental stem cells have been found to have the ability to differentiate into nerve cells, adipose cells, chondrocytes, osteoblasts, myocytes, hepatocytes, and odontoblasts. They can be derived from permanent teeth or deciduous teeth. Stem cells from human exfoliated deciduous teeth (SHED) have a higher proliferation rate and higher osteogenic and neurogenic potential than dental pulp stem cells (DPSC). Therefore, SHEDs are an attractive cell source for tissue regeneration. A large plethora of in vitro and animal studies have been conducted in the last few decades that has demonstrated the potential uses of these cells for the treatment of oral and non-oral diseases. The aim of this article was to review the potential therapeutic applications of stem cells derived from human exfoliated deciduous teeth. A Medline search was done, including international literature, published in English between 2003 and 2020. In this area, further research is needed to ensure the applicability of SHED in the treatment of diseases in humans.

scholarly journals Present Status of Research on the Regenerative Potential of Dental Pulp Stem Cells in Malaysia: A Systematic Review

2021 ◽  
Vol 8 (1) ◽  
pp. 304-309
Author(s):  
Nazmul Haque
Keyword(s):  
Systematic Review ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Present Status ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Invasive Technique ◽  
Human Exfoliated Deciduous Teeth

Stem cells from human exfoliated deciduous teeth (SHED) or dental pulp stem cells (DPSCs) from permanent teeth are considered promising sources of mesenchymal stem cells. It requires a less invasive technique to isolate stem cells from exfoliated or permanent teeth. Hence this study aimed to identify the present status of research on the regenerative potential of SHED/DPSCs in Malaysia. The results indicate that only 60 articles were published in regenerative medicine from Malaysia till 5th July 2019. Only 16 tertiary institutes and four industries/clinics were involved in these studies. A poor pattern of collaboration has also been identified. Outcomes of this study have emphasized the conduction of more research on the regenerative potential of SHED/DPSCs, and active collaboration among the tertiary institutes and industries for successful translation of these cells from bench side to bedside.

scholarly journals Stem Cells from Human Exfoliated Deciduous Teeth – Isolation, Long Term Cultivation and Phenotypical Analysis

2010 ◽  
Vol 53 (2) ◽  
pp. 93-99 ◽  
Author(s):  
Jakub Suchánek ◽  
Benjamín Víšek ◽  
Tomáš Soukup ◽  
Sally Kamal El-Din Mohamed ◽  
Romana Ivančaková ◽  
...  
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Dental Pulp ◽  
Biological Properties ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Population Doubling ◽  
Population Doubling Time ◽  
Human Exfoliated Deciduous Teeth

Aims: Our aims were to isolate stem cells from human exfoliated deciduous teeth (SHED), to cultivate them in vitro and to investigate their basic biological properties, phenotype and to compare our findings with dental pulp stem cells (DPSC) isolated from permanent teeth. Methods: Dental pulp was gently evacuated from exfoliated teeth. After enzymatic dissociation of dental pulp, SHED were cultivated in modified cultivation media for mesenchymal adult progenitor cells containing 2 % FCS and supplemented with growth factors and insulin, transferrin, sodium (ITS) supplement. Cell viability and other biological properties were examined using a Vi-Cell analyzer and a Z2-Counter. DNA analyses and phenotyping were performed with flow cytometry. Results: We were able to cultivate SHED over 45 population doublings. Our results showed that SHED cultivated under same conditions as DPSC had longer average population doubling time (41.3 hrs for SHED vs. 24.5 hrs for DPSC). Phenotypic comparison of cultivated SHED to that of cultivated DPSC showed differential expression CD29, CD44, CD71, CD117, CD166. During long-term cultivation, SHED did not showed any signs of degeneration or spontaneous differentiation. Conclusions: We isolated stem cells from exfoliated teeth. In comparison to DPSC, SHED proliferation rate was about 50% slower, and SHED showed slightly different phenotype. These cells may be extremely useful for stem cell tissue banking, further stem cell research and future therapeutic applications.

scholarly journals Pluripotency of Stem Cells from Human Exfoliated Deciduous Teeth for Tissue Engineering

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Vinicius Rosa ◽  
Nileshkumar Dubey ◽  
Intekhab Islam ◽  
Kyung-San Min ◽  
Jacques E. Nör
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Primary Teeth ◽  
Cell Model ◽  
Cell Types ◽  
Deciduous Teeth ◽  
High Plasticity ◽  
Differentiation Potential ◽  
Stem Cell Model ◽  
Human Exfoliated Deciduous Teeth

Stem cells from human exfoliated deciduous teeth (SHED) are highly proliferative pluripotent cells that can be retrieved from primary teeth. Although SHED are isolated from the dental pulp, their differentiation potential is not limited to odontoblasts only. In fact, SHED can differentiate into several cell types including neurons, osteoblasts, adipocytes, and endothelial cells. The high plasticity makes SHED an interesting stem cell model for research in several biomedical areas. This review will discuss key findings about the characterization and differentiation of SHED into odontoblasts, neurons, and hormone secreting cells (e.g., hepatocytes and islet-like cell aggregates). The outcomes of the studies presented here support the multipotency of SHED and their potential to be used for tissue engineering-based therapies.

scholarly journals Comparative evaluation of osteogenic differentiation potential of stem cells derived from dental pulp and exfoliated deciduous teeth cultured over granular hydroxyapatite based scaffold

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Manal Nabil Hagar ◽  
Farinawati Yazid ◽  
Nur Atmaliya Luchman ◽  
Shahrul Hisham Zainal Ariffin ◽  
Rohaya Megat Abdul Wahab
Keyword(s):  
Stem Cells ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
3D Culture ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Osteogenic Potential ◽  
Control Group ◽  
Rt Pcr ◽  
Differentiation Potential

Abstract Background Mesenchymal stem cells isolated from the dental pulp of primary and permanent teeth can be differentiated into different cell types including osteoblasts. This study was conducted to compare the morphology and osteogenic potential of stem cells from exfoliated deciduous teeth (SHED) and dental pulp stem cells (DPSC) in granular hydroxyapatite scaffold (gHA). Preosteoblast cells (MC3T3-E1) were used as a control group. Methodology The expression of stemness markers for DPSC and SHED was evaluated using reverse transcriptase-polymerase chain reaction (RT-PCR). Alkaline phosphatase assay was used to compare the osteoblastic differentiation of these cells (2D culture). Then, cells were seeded on the scaffold and incubated for 21 days. Morphology assessment using field emission scanning electron microscopy (FESEM) was done while osteogenic differentiation was detected using ALP assay (3D culture). Results The morphology of cells was mononucleated, fibroblast-like shaped cells with extended cytoplasmic projection. In RT-PCR study, DPSC and SHED expressed GAPDH, CD73, CD105, and CD146 while negatively expressed CD11b, CD34 and CD45. FESEM results showed that by day 21, dental stem cells have a round like morphology which is the morphology of osteoblast as compared to day 7. The osteogenic potential using ALP assay was significantly increased (p < 0.01) in SHED as compared to DPSC and MC3T3-E1 in 2D and 3D cultures. Conclusion gHA scaffold is an optimal scaffold as it induced osteogenesis in vitro. Besides, SHED had the highest osteogenic potential making them a preferred candidate for tissue engineering in comparison with DPSC.

In vitro and in vivo characteristics of stem cells from human exfoliated deciduous teeth obtained by enzymatic disaggregation and outgrowth

2014 ◽  
Vol 59 (10) ◽  
pp. 1013-1023 ◽  
Author(s):  
Mijeong Jeon ◽  
Je Seon Song ◽  
Byung-Jai Choi ◽  
Hyung-Jun Choi ◽  
Dong-Min Shin ◽  
...  
Keyword(s):  
Stem Cells ◽  
Deciduous Teeth ◽  
Human Exfoliated Deciduous Teeth
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