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Dental stem cell

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https://www.readbyqxmd.com/read/28230598/analysis-of-the-adherence-of-dental-pulp-stem-cells-on-two-dimensional-and-three-dimensional-silk-fibroin-based-biomaterials-applications-in-regenerative-dentistry
#1
María Pilar Pecci-Lloret, Mar Vera-Sánchez, Salvador Aznar-Cervantes, David García-Bernal, Ricardo Oñate Sánchez, Miguel Ramón Pecci-Lloret, José María Moraleda, José Luis Cenis, Francisco Javier Rodríguez-Lozano
Among various biomaterials used as scaffolds in tissue engineering, silk fibroin is a highly attractive material. A scaffold should be biocompatible and nontoxic, with optimal physical features and mechanical properties. For this reason, tissue-engineering approaches in regenerative medicine have focused on investigating the biocompatibility of possible biomaterials by analyzing cell-scaffold interaction properties. The aim of the present study was to examine the biocompatibility of silk fibroin as a film (two-dimensional [2D]) and a scaffold (three-dimensional [3D]) after being cellularized with human dental pulp stem cells (hDPSCs)...
February 22, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28229417/a-simplified-and-systematic-method-to-isolate-culture-and-characterize-multiple-types-of-human-dental-stem-cells-from-a-single-tooth
#2
Mohammed Bakkar, Younan Liu, Dongdong Fang, Camille Stegen, Xinyun Su, Murali Ramamoorthi, Li-Chieh Lin, Takako Kawasaki, Nicholas Makhoul, Huan Pham, Yoshinori Sumita, Simon D Tran
This chapter describes a simplified method that allows the systematic isolation of multiple types of dental stem cells such as dental pulp stem cells (DPSC), periodontal ligament stem cells (PDLSC), and stem cells of the apical papilla (SCAP) from a single tooth. Of specific interest is the modified laboratory approach to harvest/retrieve the dental pulp tissue by minimizing trauma to DPSC by continuous irrigation, reduction of frictional heat from the bur rotation, and reduction of the bur contact time with the dentin...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28229403/a-simple-protocol-to-isolate-characterize-and-expand-dental-pulp-stem-cells
#3
Federica Di Scipio, Andrea Elio Sprio, Maria Elisabetta Carere, Zhiqian Yang, Giovanni Nicolao Berta
Adult stem cells reside in body tissues to preserve organs and whole organism homeostasis. They are acquiring a prominent role in the contemporary medicine. Many protocols to isolate and cultivate adult stem cells have been so far described, though they are often lengthy, laborious, and require very expansive instruments, materials, and reagents. On this basis, we describe a simple, cheap but at the same time functional method to: (1) isolate dental pulp stem cells (DPSC), (2) expand and cultivate DPSC, (3) cryopreserve DPSC, (4) characterize DPSC, and (5) differentiate DPSC into both mesenchymal and non-mesenchymal lineages...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28218482/osteoblastic-differentiation-of-periodontal-ligament-stem-cells-on-non-stoichiometric-calcium-phosphate-and-titanium-surfaces
#4
L Winning, L Robinson, A R Boyd, I A El Karim, F T Lundy, B J Meenan
Bioactive materials offer particular clinical benefits in the field of dental implantology, where differentiation of stem cells towards an osteoblastic lineage is required for osseointegration and appropriate function of implants in vivo. The aim of this study was to evaluate the osteoblastic response of Stro-1+ve periodontal ligament stem cells (PDLSCs) to three well-characterised biomaterial surfaces: an abraded titanium surface (cpTi) control; a polycrystalline titanium surface, with both micro and nano-topography produced by radio frequency magnetron sputtering (TiTi); and the same surface incorporating a sputter deposited calcium phosphate coating (CaP-TiTi)...
February 20, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28217369/regenerative-medicine-using-dental-pulp-stem-cells-for-liver-diseases
#5
EDITORIAL
Shogo Ohkoshi, Hajime Hara, Haruka Hirono, Kazuhiko Watanabe, Katsuhiko Hasegawa
Acute liver failure is a refractory disease and its prognosis, if not treated using liver transplantation, is extremely poor. It is a good candidate for regenerative medicine, where stem cell-based therapies play a central role. Mesenchymal stem cells (MSCs) are known to differentiate into multiple cell lineages including hepatocytes. Autologous cell transplant without any foreign gene induction is feasible using MSCs, thereby avoiding possible risks of tumorigenesis and immune rejection. Dental pulp also contains an MSC population that differentiates into hepatocytes...
February 6, 2017: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28216268/dental-pulp-tissue-regeneration-using-dental-pulp-stem-cells-isolated-and-expanded-in-human-serum
#6
Evandro Piva, Susan A Tarlé, Jacques E Nör, Duohong Zou, Elizabeth Hatfield, Tyler Guinn, Emily J Eubanks, Darnell Kaigler
INTRODUCTION: Dental pulp-derived stem cells (DPSCs) have the potential to regenerate dentin and dental pulp tissue because of their differentiation capacity and angiogenic properties. However, for regenerative approaches to gain regulatory and clinical acceptance, protocols are needed to determine more feasible ways to cultivate DPSCs, namely, without the use of xenogeneic-derived components (animal sera) and exogenous growth factors. METHODS: In this study, human DPSCs were isolated from third molars and expanded in standard culture conditions containing fetal bovine serum (DPSCs-FBS) or conditions containing human serum (DPSCs-HS)...
February 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28215057/efficacy-of-human-platelet-rich-fibrin-exudate-vs-fetal-bovine-serum-on-proliferation-and-differentiation-of-dental-pulp-stem-cells
#7
Mahmoud A Saeed, Mohamed Abd El-Rahman, Mohamed E Helal, Ahmed R Zaher, Mohammed E Grawish
Background and Objectives: The imperative role of dental pulp stem cells (DPSCs) in regenerative therapy demands an in-vitro expansion which must deal with the safety and ethical problems associated with fetal bovine serum (FBS). The primary aim of this study was to compare the effects of human platelet rich fibrin (hPRF) exudate Vs FBS on proliferation and osteodifferentiation of human dental pulp stem cells (hDPSCs). The secondary one was to determine the optimum concentration of hPRF exudate inducing hDPSCs proliferation and osteodifferentiation...
February 28, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28210430/growth-kinetics-and-characterization-of-human-dental-pulp-stem-cells-comparison-between-third-molar-and-first-premolar-teeth
#8
Davood Mehrabani, Parisa Mahdiyar, Kianoosh Torabi, Reza Robati, Shahrokh Zare, Mehdi Dianatpour, Amin Tamadon
BACKGROUND: Dental pulp stem cells (DPSCs) play an important role in tissue regeneration. This study compares the growth kinetics and characterization of third molar and first premolar human DPSCs. MATERIAL AND METHODS: Dental pulp tissues were isolated from human first premolar and third molar teeth and were digested by treating them with collagenase type I. Single-cell suspensions from each dental pulp were seeded in T25 culture flasks and the media were replaced every 3 days until 70% confluence...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28209631/hdpscs-fabricate-a-vascularised-woven-bone-tissue-a-new-tool-in-bone-tissue-engineering
#9
Francesca Paino, Marcella La Noce, Alessandra Giuliani, Alfredo De Rosa, Serena Mazzoni, Luigi Laino, Evzen Amler, Gianpaolo Papaccio, Vincenzo Desiderio, Virginia Tirino
Human dental pulp stem cells (hDPSCs) are mesenchymal stem cells successfully used in human bone tissue engineering. To better establish if these cells can lead to a bone tissue ready to be grafted, we checked DPSCs for their osteogenic and angiogenic differentiation capabilities with the specific aim to obtain a new tool for bone transplantation. Therefore, hDPSCs were specifically selected from the stromal-vascular dental pulp fraction, using appropriate markers and cultured. Growth curves, expression of bone-related markers, calcification, angiogenesis as well as in vivo transplantation assay were performed...
February 16, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28205268/the-effect-of-delta-like-1-homologue-on-the-proliferation-and-odontoblastic-differentiation-in-human-dental-pulp-stem-cells
#10
Shengcai Qi, Yanhong Yan, Yue Wen, Jialiang Li, Jing Wang, Fubo Chen, Xiaoshan Tang, Guangwei Shang, Yuanzhi Xu, Raorao Wang
INTRODUCTION: This study aimed to investigate the functions of delta-like homologue 1 (DLK1) in the proliferation and differentiation of human dental pulp stem cells (hDPSCs). METHODS: Immunohistochemical analysis was used to determine the expression of alkaline phosphatase (ALP), dentin sialophosphoprotein (DSPP), DLK1, NOTCH1 and p-ERK1/2 in the mouse first maxillary molar. Recombinant lentivirus was constructed to overexpress DLK1 stably in hDPSCs. The cell viability and proliferation of hDPSCs were examined by CCK8 and EdU incorporation assay respectively...
February 15, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28198096/treated-dentin-matrix-paste-as-a-novel-pulp-capping-agent-for-dentin-regeneration
#11
Jinlong Chen, Caiyun Cui, Xiangchen Qiao, Bo Yang, Mei Yu, Weihua Guo, Weidong Tian
Regenerating dentin and preserving pulp vitality are the two key targets for the treatment of dental pulp exposure. Calcium hydroxide (CH), the widely used capping agent, may induce potential tunnel defect in reparative dentin and cause inflammation or even necrosis in pulp tissues. This study aimed to produce a novel pulp capping agent with better bioactivities. Treated dentin matrix (TDM) paste (TDMP) was fabricated consisting of TDM powder and aqueous TDM extract. The chemical and biological characteristics of TDMP were investigated, and its effect on the odontogenic differentiation of dental pulp stem cells explored at gene and protein level; the therapeutic effect for pulp exposure in miniature swine was further verified...
February 15, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28196330/decellularized-human-dental-pulp-as-a-scaffold-for-regenerative-endodontics
#12
J S Song, K Takimoto, M Jeon, J Vadakekalam, N B Ruparel, A Diogenes
Teeth undergo postnatal organogenesis relatively late in life and only complete full maturation a few years after the crown first erupts in the oral cavity. At this stage, development can be arrested if the tooth organ is damaged by either trauma or caries. Regenerative endodontic procedures (REPs) are a treatment alternative to conventional root canal treatment for immature teeth. These procedures rely on the transfer of apically positioned stem cells, including stem cells of the apical papilla (SCAP), into the root canal system...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28192031/neural-crest-stem-cells-can-differentiate-to-a-cardiomyogenic-lineage-with-an-ability-to-contract-in-response-to-pulsed-infrared-stimulation
#13
Jordan M Greenberg, Vicente Lumbreras, Daniel Pelaez, Suhrud M Rajguru, Herman S Cheung
INTRODUCTION: Cellular cardiomyoplasty has rapidly risen to prominence in the clinic following a myocardial infarction; however, low engraftment of transplanted cells limits the therapeutic benefit to these procedures. Recently, lineage-specific stem cells differentiated into cardiomyocytes have gained much attention to assist in the repair of an injured heart tissue; however, questions regarding the ideal cell source remain. In the present study, we have identified a source that is easy to extract stem cells from and show that the cells present have a high plasticity toward the cardiomyogenic lineage...
October 2016: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28179933/role-of-cd146-enrichment-in-purification-of-stem-cells-derived-from-dental-pulp-polyp
#14
Maryam Sadat Tavangar, Seyed-Mojtaba Hosseini, Ali Dehghani-Nazhvani, Ahmad Monabati
INTRODUCTION: Hyperplastic pulpitis (pulp polyp) tissues contains cells with stem cell properties similar to that of the dental pulp stem cells (DPSCs). It has also been shown that CD146 enrichment can homogenize the cultures of DPSCs and enhance the colony forming potentials of their cultures. This study determines whether CD146 enrichment can help purifying the stem cells from heterogeneous cultures of the pulp polyp derived stem cells (PPSCs). METHODS AND MATERIALS: Healthy dental pulps and pulp polyp tissues were enzymatically digested and the harvested single cells were sorted according to the presence of CD146 marker...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28177135/unveiling-and-initial-characterization-of-neural-crest-like-cells-in-mesenchymal-populations-from-the-human-periodontal-ligament
#15
L Ramírez-García, R Cevallos, K Gazarian
OBJECTIVE: To identify cells with neural crest properties in mesenchymal populations isolated from human periodontal ligament. BACKGROUND: Evidence from tracing experiments on animal embryos revealed proof that dental tissues are among the homing sites of craniofacial neural crest migratory cells. In humans, similar migratory cells were found in early embryos, but whether these cells are progeny of oral multipotent stem cells needs to be confirmed. Searching for the cells with neural crest characteristics in periodontal ligament mesenchymal populations can lead to a solution to the problem...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28159719/improvement-of-osteogenesis-in-dental-pulp-pluripotent-like-stem-cells-by-oligopeptide-modified-poly-%C3%A3-amino-ester-s
#16
Raquel Núñez-Toldrà, Pere Dosta, Sheyla Montori, Víctor Ramos, Maher Atari, Salvador Borrós
: Controlling pluripotent stem cell differentiation via genetic manipulation is a promising technique in regenerative medicine. However, the lack of safe and efficient delivery vehicles limits this application. Recently, a new family of poly (β-amino ester)s (pBAEs) with oligopeptide-modified termini showing high transfection efficiency of both siRNA and DNA plasmid has been developed. In this study, oligopeptide-modified pBAEs were used to simultaneously deliver anti-OCT3/4 siRNA, anti-NANOG siRNA, and RUNX2 plasmid to cells from the dental pulp with pluripotent-like characteristics (DPPSC) in order to promote their osteogenic differentiation...
January 31, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28157689/differential-mineralization-of-human-dental-pulp-stem-cells-on-diverse-polymers
#17
Christian Apel, Patricia Buttler, Jochen Salber, Anandhan Dhanasingh, Sabine Neuss
In tissue engineering, biomaterials are used as scaffolds for spatial distribution of specific cell types. Biomaterials can potentially influence cell proliferation and extracellular matrix formation, both in positive and negative ways. The aim of the present study was to investigate and compare mineralized matrix production of human dental pulp stem cells (DPSC), cultured on 17 different well-characterized polymers. Osteogenic differentiation of DPSC was induced for 21 days on biomaterials using dexamethasone, L-ascorbic-acid-2-phosphate, and sodium β-glycerophosphate...
February 3, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28154538/generation-of-spheres-from-dental-epithelial-stem-cells
#18
Despoina Natsiou, Zoraide Granchi, Thimios A Mitsiadis, Lucia Jimenez-Rojo
The in vitro three-dimensional sphere model has already been established as an important tool in fundamental sciences. This model facilitates the study of a variety of biological processes including stem cell/niche functions and tissue responses to injury and drugs. Here we describe the complete protocol for the in vitro formation of spheres originated from the epithelium of rodent incisors. In addition, we show that in these spheres cell proliferation is maintained, as well as the expression of several key molecules characterizing stem cells such as Sox2 and p63...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28148303/variation-in-human-dental-pulp-stem-cell-ageing-profiles-reflect-contrasting-proliferative-and-regenerative-capabilities
#19
Amr Alraies, Nadia Y A Alaidaroos, Rachel J Waddington, Ryan Moseley, Alastair J Sloan
BACKGROUND: Dental pulp stem cells (DPSCs) are increasingly being recognized as a viable cell source for regenerative medicine. Although significant variations in their ex vivo expansion are well-established, DPSC proliferative heterogeneity remains poorly understood, despite such characteristics influencing their regenerative and therapeutic potential. This study assessed clonal human DPSC regenerative potential and the impact of cellular senescence on these responses, to better understand DPSC functional behaviour...
February 2, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28148268/mesenchymal-stem-cells-key-players-in-cancer-progression
#20
REVIEW
Sarah M Ridge, Francis J Sullivan, Sharon A Glynn
Tumour progression is dependent on the interaction between tumour cells and cells of the surrounding microenvironment. The tumour is a dynamic milieu consisting of various cell types such as endothelial cells, fibroblasts, cells of the immune system and mesenchymal stem cells (MSCs). MSCs are multipotent stromal cells that are known to reside in various areas such as the bone marrow, fat and dental pulp. MSCs have been found to migrate towards inflammatory sites and studies have shown that they also migrate towards and incorporate into the tumour...
February 1, 2017: Molecular Cancer
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