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Dental stem cell

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https://www.readbyqxmd.com/read/29341308/stiffness-regulates-the-proliferation-and-osteogenic-odontogenic-differentiation-of-human-dental-pulp-stem-cells-via-the-wnt-signalling-pathway
#1
Nanxin Liu, Mi Zhou, Qi Zhang, Tao Zhang, Taoran Tian, Quanquan Ma, Changyue Xue, Shiyu Lin, Xiaoxiao Cai
OBJECTIVES: Researches showed that stiffness of the extracellular matrix can affect the differentiation of many stem cells. Dental pulp stem cells (DPSCs) are a promising type of adult stem cell. However, we know little about whether and how the behaviour of DPSCs is influenced by stiffness. MATERIALS AND METHODS: We carried out a study that cultured DPSCs on tunable elasticity polydimethylsiloxane substrates to investigate the influence on morphology, proliferation, osteogenic/odontogenic differentiation and its possible mechanism...
January 17, 2018: Cell Proliferation
https://www.readbyqxmd.com/read/29327447/itraq-based-proteomic-analysis-explore-the-influence-of-hypoxia-on-the-proteome-of-dental-pulp-stem-cells-under-3d-culture
#2
Lei Dou, Qifang Yan, Panpan Liang, Pengfei Zhou, Yan Zhang, Ping Ji
Various approaches are used to improve the efficacy of mesenchymal stem cells(MSCs) therapy. Hypoxic preconditioning is one of the most commonly-applied strategy prior to MSCs transplantation for enhancing the therapeutic effect. Identifying the effect of hypoxic preconditioning is helpful for better application. However, the influence of hypoxia on dental tissue derived MSCs cultured in 3D was lacking. Thus, this present study is to investigate the gene expression and proteome of dental pulp stem cells(DPSCs) after hypoxic preconditioning...
January 12, 2018: Proteomics
https://www.readbyqxmd.com/read/29316874/liposomal-delivery-of-demineralised-dentine-matrix-for-dental-tissue-regeneration
#3
Genevieve Elizabeth Melling, John Colombo, Steven J Avery, Wayne Ayre, Samuel L Evans, Rachel Jane Waddington, Alastair James Sloan
Current dental restorations have short longevity, consequently there is a need for novel tissue engineering strategies that aim to regenerate the dentine-pulp complex. Dentine matrix contains a myriad of bioactive growth factors and extracellular matrix proteins associated with the recruitment, proliferation and differentiation of dental pulp progenitor cells. Here, we show that demineralised dentine matrix (DDM), from non-carious dentine, can be encapsulated into liposomes for delivery to dental tissue to promote regeneration...
January 9, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29313241/cd146-positive-human-dental-pulp-stem-cells-promote-regeneration-of-dentin-pulp-like-structures
#4
Mikiko Matsui, Tomoko Kobayashi, Takeo W Tsutsui
CD146 and STRO-1 are endothelial biomarkers that are co-expressed on the cellular membranes of blood vessels within human dental pulp tissue. This study characterized the percentage of dentin-like structures produced by CD146-positive (CD146+) human dental pulp stem cells (DPSCs), compared with their CD146-negative (CD146-) counterparts. DPSC populations were enriched using magnetic-activated cell sorting (MACS), yielding CD146+ and CD146- cells, as well as mixtures composed of 25% CD146+ cells and 75% CD146- cells (CD146+/-)...
January 8, 2018: Human Cell
https://www.readbyqxmd.com/read/29306537/metformin-enhances-the-differentiation-of-dental-pulp-cells-into-odontoblasts-by-activating-ampk-signaling
#5
Wei Qin, Xianling Gao, Tao Ma, Michael D Weir, Jing Zou, Bing Song, Zhengmei Lin, Abraham Schneider, Hockin H K Xu
INTRODUCTION: Metformin is a first-line drug for treating type 2 diabetes that regulates the differentiation of mesenchymal stem cells. Its effects on human dental pulp cells (DPCs) remain unknown. This study aimed to investigate the effects of metformin on the proliferation and differentiation of DPCs. METHODS: A live/dead viability assay kit was used to examine the effects of metformin on the cell viability of DPCs. Cell proliferation was analyzed using a cell counting kit (CCK-8; Dojindo, Tokyo, Japan)...
January 3, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29306530/evaluation-of-biocompatibility-and-osteogenic-potential-of-tricalcium-silicate-based-cements-using-human-bone-marrow-derived-mesenchymal-stem-cells
#6
Neha Sultana, Manisha Singh, Ruchika Roongta Nawal, Sarika Chaudhry, Seema Yadav, Sujata Mohanty, Sangeeta Talwar
INTRODUCTION: The success of endodontic regeneration lies in the appropriate combination of stem cells and bioactive materials. Several novel dental materials are available on the market in this regard. Hence, the current study aimed to evaluate the proliferation, differentiation, and osteogenic potential of human bone marrow-derived mesenchymal stem cells (hBMSCs) onto biomaterials like ProRoot MTA (MTA; Dentsply Tulsa Dental, Tulsa, OK), Biodentine (BD; Septodont, Saint Maur de Fosses, France), and EndoSequence Root Repair Material (ERRM; Brasseler USA, Savannah, GA)...
January 3, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29306073/mir-143-suppresses-the-osteogenic-differentiation-of-dental-pulp-stem-cells-by-inactivation-of-nf-%C3%AE%C2%BAb-signaling-pathway-via-targeting-tnf-%C3%AE
#7
Peng Zhang, Wenli Yang, Guofang Wang, Yajing Li
BACKGROUND: Dental pulp stem cells (DPSCs) are multipotent and play an important role in repairing damaged and/or defective dentinogenesis/osteogenesis. Recent studies have documented the implication of miR-143 in osteogenic differentiation of DPSCs. Nevertheless, the detailed mechanisms of miR-143 involved in the osteogenic differentiation of DPSCs remain to be further elaborated. METHODS: Isolated DPSCs were incubated with osteogenic differentiation medium to induce osteogenic differentiation...
December 30, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29304003/a-high-resolution-proteomic-landscaping-of-primary-human-dental-stem-cells-identification-of-shed-and-pdlsc-specific-biomarkers
#8
Vasiliki Taraslia, Stefania Lymperi, Vasiliki Pantazopoulou, Athanasios K Anagnostopoulos, Issidora S Papassideri, Efthimia K Basdra, Marianna Bei, Evangelos G Kontakiotis, George Th Tsangaris, Dimitrios J Stravopodis, Ema Anastasiadou
Dental stem cells (DSCs) have emerged as a promising tool for basic research and clinical practice. A variety of adult stem cell (ASC) populations can be isolated from different areas within the dental tissue, which, due to their cellular and molecular characteristics, could give rise to different outcomes when used in potential applications. In this study, we performed a high-throughput molecular comparison of two primary human adult dental stem cell (hADSC) sub-populations: Stem Cells from Human Exfoliated Deciduous Teeth (SHEDs) and Periodontal Ligament Stem Cells (PDLSCs)...
January 5, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29298406/a-miniature-swine-model-for-stem-cell-based-de-novo-regeneration-of-dental-pulp-and-dentin-like-tissue
#9
Xiaofei Zhu, Jie Liu, Zongdong Yu, Chao-An Chen, Hacer Aksel, Adham A Azim, George T-J Huang
The goal of this study was to establish mini-swine as a large animal model for stem cell-based pulp regeneration studies. Swine dental pulp stem cells (sDPSCs) were isolated from mini-swine and characterized in vitro. For in vivo studies, we first employed both ectopic and semi-orthotopic study models using severe combined immunodeficiency mice. One is hydroxyapatite-tricalcium phosphate (HA/TCP) model for pulp-dentin complex formation, and the other is tooth fragment model for complete pulp regeneration with new dentin depositing along the canal walls...
January 3, 2018: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/29279546/application-of-fluoridated-hydroxyapatite-thin-film-coatings-using-krf-pulsed-laser-deposition
#10
Yoshiya Hashimoto, Mamoru Ueda, Yu Kohiga, Kazuki Imura, Shigeki Hontsu
Fluoridated hydroxyapatite (FHA) was investigated for application as an implant coating for titanium bone substitute materials in dental implants. A KrF pulsed excimer deposition technique was used for film preparation on a titanium plate. The compacts were ablated by laser irradiation at an energy density of 1 J/cm2 on an area 1×1 mm2 with the substrate at room temparature. Energydispersive spectrometric analysis of the FHA film revealed peaks of fluorine in addition to calcium and phosphorus. X-ray diffraction revealed the presence of crystalline FHA on the FHA film after a 10 h post annealing treatment at 450°C...
December 27, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/29260758/-regeneration-of-dental-pulp-tissue-using-pulpal-autologous-mesenchymal-stem-cells-and-platelet-rich-plasma
#11
A A Kulakov, D V Goldshtein, E K Krechina, T B Bukharova, A V Volkov, A K Gadzhiev
Regeneration of pulp and dentin could be important in operative dentistry as a method to save teeth. Currently cell population from dental pulp of deciduous and permanent teeth of humans and laboratory animals are isolated and characterized. The paper presents a study on pulp regeneration using autologous mesenchymal stromal cells from pulp of molars in combination with fibrin clot, transplanted in pulp chamber of miniature pigs after pulp removal. The results proved that transplantation of autologous multipotent stromal cells of dental pulp in combination with autologous platelet-rich plasma in pulp chamber of miniature pigs after pulp removal leads to pulp restoration and reparative dentinogenesis with dentinal bridge formation on the 30th day...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/29260756/-optimization-of-reparative-dentinogenesis-in-experimental-osteoporosis
#12
N I Bykova, S V Sirak, T L Kobylkina, A V Odolsky, I M Bykov, A V Arutyunov
The aim of the study was to assess histochemical changes of the dental pulp in direct pulp capping/experimental osteoporosis animal model. The study was performed on 20 two-year sheep with simulated acute pulpitis divided in 2 groups: main (15 animals/120 teeth) and control (5 animals/40 teeth). Direct pulp capping in the main group included tissue-engineered structure composed of a hydrogel PuraMatrix/3DM with ectomesenchymal stem cells immobilized on collagen sponge. In the control group collagen sponges with hydrocortisone furatsilin, chondroitin sulfate, аnaesthesinum were used for the same purpose...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/29259970/potential-use-of-human-periapical-cyst-mesenchymal-stem-cells-hpcy-mscs-as-a-novel-stem-cell-source-for-regenerative-medicine-applications
#13
REVIEW
Marco Tatullo, Bruna Codispoti, Andrea Pacifici, Francesca Palmieri, Massimo Marrelli, Luciano Pacifici, Francesco Paduano
Mesenchymal stem cells (MSCs) are attracting growing interest by the scientific community due to their huge regenerative potential. Thus, the plasticity of MSCs strongly suggests the utilization of these cells for regenerative medicine applications. The main issue about the clinical use of MSCs is related to the complex way to obtain them from healthy tissues; this topic has encouraged scientists to search for novel and more advantageous sources of these cells in easily accessible tissues. The oral cavity hosts several cell populations expressing mesenchymal stem cell like-features, furthermore, the access to oral and dental tissues is simple and isolation of cells is very efficient...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/29259707/isolation-of-dental-pulp-stem-cells-with-high-osteogenic-potential
#14
REVIEW
Takazumi Yasui, Yo Mabuchi, Satoru Morikawa, Katsuhiro Onizawa, Chihiro Akazawa, Taneaki Nakagawa, Hideyuki Okano, Yumi Matsuzaki
Dental pulp stem cells/progenitor cells (DPSCs) can be easily obtained and can have excellent proliferative and mineralization potentials. Therefore, many studies have investigated the isolation and bone formation of DPSCs. In most previous reports, human DPSCs were traditionally isolated by exploiting their ability to adhere to plastic tissue culture dishes. DPSCs isolated by plastic adherence are frequently contaminated by other cells, which limits the ability to investigate their basic biology and regenerative properties...
2017: Inflammation and Regeneration
https://www.readbyqxmd.com/read/29258387/microfluidic-encapsulation-supports-stem-cell-viability-proliferation-and-neuronal-differentiation
#15
Lorena Hidalgo San Jose, Phil Stephens, Bing Song, David Barrow
Stem cell encapsulation technology demonstrates much promise for the replacement of damaged tissue in several diseases, including spinal cord injury (SCI). The use of biocompatible microcapsules permits the control of stem cell fate in situ to facilitate the replacement of damaged/lost tissue. In this work, a novel customized microfluidic device was developed for the reproducible encapsulation of Neural Stem Cells (NSCs) and Dental Pulp Stem Cells (DPSCs) within monodisperse, alginate-collagen microcapsules...
December 19, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/29250712/photostimulation-of-osteogenic-differentiation-on-silk-scaffolds-by-plasma-arc-light-source
#16
Anıl Sera Çakmak, Soner Çakmak, H Seda Vatansever, Menemşe Gümüşderelioğlu
Low-level laser therapy (LLLT) has been used for more than 30 years to heal wounds. In recent years, LLLT or photostimulation has been indicated as an effective tool for regenerative and dental medicine by using monochromatic light. The aim of this study is to indicate the usability of plasma arc light source for bone regeneration. This is why we used polychromatic light source providing effective wavelengths in the range of 590-1500 nm for cellular response and investigated photostimulation effects on osteogenic differentiation of human mesenchymal stem cells (hMSCs) seeded on 3D silk scaffolds...
December 18, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29250137/enhanced-osseointegration-of-titanium-implants-in-a-rat-model-of-osteoporosis-using-multilayer-bone-mesenchymal-stem-cell-sheets
#17
Yan Duan, Wei Ma, Dehua Li, Tongfei Wang, Baolin Liu
The present study aimed to investigate whether bone marrow-derived mesenchymal stem cell (BMSC) sheets combined with titanium implants enhanced implant osseointegration in an ovariectomized (OVX) rat model of osteoporosis. Sprague-Dawley rats were randomly assigned into a test group and control group. Allogenic BMSCs were collected from the rats, cultured and stored via cryopreservation. At 6 months post-ovariectomy, establishment of the OVX model was confirmed by micro-computed tomography (CT) measurements...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29240205/regenerative-treatment-of-periodontal-intrabony-defects-using-autologous-dental-pulp-stem-cells-a-1-year-follow-up-case-series
#18
Mario Aimetti, Francesco Ferrarotti, Mara Noemi Gamba, Marta Giraudi, Federica Romano
The present case series aimed to explore the potential clinical benefits of the application of dental pulp stem cells (DPSCs) in the regenerative treatment of deep intrabony defects. A total of 11 isolated intrabony defects in 11 chronic periodontitis patients were accessed with a minimally invasive flap and filled with DPSCs loaded on a collagen sponge. A tooth requiring extraction for impaction or malpositioning was used as an autologous source for DPSCs. An average clinical attachment level gain of 4.7 ± 1...
January 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29237486/transplantation-of-dental-pulp-stem-cells-improves-long-term-diabetic-polyneuropathy-together-with-improvement-of-nerve-morphometrical-evaluation
#19
Maiko Omi, Masaki Hata, Nobuhisa Nakamura, Megumi Miyabe, Shogo Ozawa, Hitoshi Nukada, Masami Tsukamoto, Kazunori Sango, Tatsuhito Himeno, Hideki Kamiya, Jiro Nakamura, Jun Takebe, Tatsuaki Matsubara, Keiko Naruse
BACKGROUND: Although previous reports have revealed the therapeutic potential of stem cell transplantation in diabetic polyneuropathy, the effects of cell transplantation on long-term diabetic polyneuropathy have not been investigated. In this study, we investigated whether the transplantation of dental pulp stem cells (DPSCs) ameliorated long-term diabetic polyneuropathy in streptozotocin (STZ)-induced diabetic rats. METHODS: Forty-eight weeks after STZ injection, we transplanted DPSCs into the unilateral hindlimb skeletal muscles...
December 13, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29235086/endothelial-expression-of-c-kit-and-cd68-in-dental-follicles-of-human-impacted-third-molars
#20
Mugurel Constantin Rusu, Aliona Rașcu, Mihai Dragomir Stoenescu
Periodontal tissue remnants of odontogenesis constitute the dental follicle (DF) which is actually considered a stem niche in adults. However, potentialities of local endothelia within this niche seem overlooked. We thus aimed at testing the endothelial cells expression of c-kit, the progenitor cells marker, and CD68, commonly regarded as a monocyte/macrophage marker, in human DFs. We performed an immunohistochemical study using these two markers which were applied on samples collected from ten adult patients...
December 13, 2017: Folia Morphologica (Warsz)
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