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Dental stem cell

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https://www.readbyqxmd.com/read/28448600/mscs-feeder-layers-induce-smg-self-organization-and-branching-morphogenesis
#1
Mahmoud Farahat, Gulsan Ara Sathi, Emilio Satoshi Hara, Hiroaki Taketa, Takuo Kuboki, Takuya Matsumoto
Dysfunction of salivary glands leads to several oral health problems, including dental caries, mastication and swallowing dysfunctions and multiple oral infections. Conventional treatments for such condition fell short of providing satisfying therapeutic results. Recent advances in organ regeneration therapy which utilize tissue stem cells to fabricate bioengineered 3D organ buds, have introduced a promising therapeutic tool for full functional organ regeneration. However, finding a sustainable and easily accessible cell source for such approaches is still challenging, especially in case of severely atrophied tissues such as irradiated salivary glands...
2017: PloS One
https://www.readbyqxmd.com/read/28442664/induction-of-neural-crest-cells-from-human-dental-pulp-derived-induced-pluripotent-stem-cells
#2
Eisuke Kawano, Taku Toriumi, Shinya Iguchi, Daigo Suzuki, Shuichi Sato, Masaki Honda
We previously generated induced pluripotent stem (iPS) cells from human dental pulp cells of deciduous teeth. Neural crest cells (NCCs) play a vital role in the development of the oral and maxillofacial region. Therefore, NCCs represent a cell source for bone, cartilage, and tooth-related tissue engineering. In this study, we examined whether iPS cells are capable of differentiating into NCCs through modification of the human embryonic stem cell protocol. First, iPS cells were dissociated into single cells and then reaggregated in low-cell-adhesion plates with neural induction medium for 8 days in suspension culture to form neurospheres...
2017: Biomedical Research
https://www.readbyqxmd.com/read/28440665/reprogramming-of-oncogene-expression-in-gingival-mesenchymal-stem-cells-following-long-term-culture-in-vitro
#3
Agnese Gugliandolo, Thangavelu Soundara Rajan, Domenico Scionti, Francesca Diomede, Placido Bramanti, Emanuela Mazzon, Oriana Trubiani
Mesenchymal stem cells (MSCs) are a promising resource for stem cell therapy for the treatment of different neurodegenerative disorders. In particular, dental MSCs, given their origin from neural crest and their proneness toward neuronal differentiation, may be more suitable for transplantation. However, if MSCs can undergo spontaneous transformation and give rise to tumor is still debated. Data about transcriptional regulation of oncogenes in MSCs following in vitro expansion are not available. In this work, we compared gene expression levels of oncogenes in gingival-derived MSCs at passage number 10 and 41...
April 25, 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28427322/dental-pulp-pluripotent-like-stem-cells-dppsc-a-new-stem-cell-population-with-chromosomal-stability-and-osteogenic-capacity-for-biomaterials-evaluation
#4
Raquel Núñez-Toldrà, Ester Martínez-Sarrà, Carlos Gil-Recio, Miguel Ángel Carrasco, Ashraf Al Madhoun, Sheyla Montori, Maher Atari
BACKGROUND: Biomaterials are widely used to regenerate or substitute bone tissue. In order to evaluate their potential use for clinical applications, these need to be tested and evaluated in vitro with cell culture models. Frequently, immortalized osteoblastic cell lines are used in these studies. However, their uncontrolled proliferation rate, phenotypic changes or aberrations in mitotic processes limits their use in long-term investigations. Recently, we described a new pluripotent-like subpopulation of dental pulp stem cells derived from the third molars (DPPSC) that shows genetic stability and shares some pluripotent characteristics with embryonic stem cells...
April 21, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28416308/implantation-of-endothelial-cells-with-mesenchymal-stem-cells-accelerates-dental-pulp-tissue-regeneration-healing-in-pulpotomized-rat-molars
#5
Yukiko Sueyama, Tomoatsu Kaneko, Takafumi Ito, Reika Kaneko, Takashi Okiji
INTRODUCTION: This study aimed to examine whether the implantation of mesenchymal stem cells (MSCs) with endothelial cells (ECs) accelerates pulp tissue regeneration/healing and induces dentin bridge formation in a rat model of molar coronal pulp regeneration. METHODS: The maxillary first molars of Wistar rats were subjected to pulpotomy. Then, pulp chambers were implanted with biodegradable hydrogel-made scaffolds carrying MSCs together or without dermal microvascular ECs, and the cavities were sealed with mineral trioxide aggregate...
April 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28412509/a-monoclonal-antibody-recognizes-undifferentiation-specific-carbohydrate-moieties-expressed-on-cell-surface-of-the-human-dental-pulp-cells
#6
Kyung-Jung Kang, Seon-Yle Ko, Chun-Jeih Ryu, Young-Joo Jang
Human dental pulp cells are obtained from dental pulp tissue, and have the ability to form dentin and a pulp-like complex. Although adult stem cells have been identified from the primary culture by using specific cell surface markers, the identity of surface markers for the purification of stem cells within the dental pulp population are still unclear. Previously, we had constructed monoclonal antibodies against the undifferentiated cell-specific surface markers of human dental pulp cells (hDPCs) by performing decoy immunization...
April 6, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28410532/role-of-p16-ink4a-and-bmi-1-in-oxidative-stress-induced-premature-senescence-in-human-dental-pulp-stem-cells
#7
Cristina Mas-Bargues, José Viña-Almunia, Marta Inglés, Jorge Sanz-Ros, Juan Gambini, José Santiago Ibáñez-Cabellos, José Luis García-Giménez, José Viña, Consuelo Borrás
Human dental pulp stem cells (hDPSCs) are a source for cell therapy. Before implantation, an in vitro expansion step is necessary, with the inconvenience that hDPSCs undergo senescence following a certain number of passages, loosing their stemness properties. Long-term in vitro culture of hDPSCs at 21% (ambient oxygen tension) compared with 3-6% oxygen tension (physiological oxygen tension) caused an oxidative stress-related premature senescence, as evidenced by increased β-galactosidase activity and increased lysil oxidase expression, which is mediated by p16(INK4a) pathway...
April 7, 2017: Redox Biology
https://www.readbyqxmd.com/read/28410232/vacquinol-1-inducible-cell-death-in-glioblastoma-multiforme-is-counter-regulated-by-trpm7-activity-induced-by-exogenous-atp
#8
Philip Sander, Haouraa Mostafa, Ayman Soboh, Julian M Schneider, Andrej Pala, Ann-Kathrin Baron, Barbara Moepps, C Rainer Wirtz, Michael Georgieff, E Marion Schneider
Glioblastomas (GBM) are the most malignant brain tumors in humans and have a very poor prognosis. New therapeutic options are urgently needed. A novel drug, Vacquinol-1 (Vac), a quinolone derivative, displays promising properties by inducing rapid cell death in GBM but not in non-transformed tissues. Features of this type of cell death are compatible with a process termed methuosis. Here we tested Vac on a highly malignant glioma cell line observed by long-term video microscopy. Human dental-pulp stem cells (DPSCs) served as controls...
March 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28408957/development-of-technique-for-in-vitro-embryotoxicity-of-dental-biomaterials
#9
REVIEW
Koichi Imai
The Embryonic Stem Cell Test (EST) developed in Germany in 1997 is known as a screening test method capable of predicting the presence of unknown chemicals influencing normal human development. Firstly, we investigated the embryotoxicity of 24 types of monomer including dental monomers and dental alloy-component metal elements using this test. Monomers including Bis-GMA contained in base resin of composite resin exhibited weak embryotoxicity, and the toxicity level varied among dental alloy-component metal elements...
August 2016: Japanese Dental Science Review
https://www.readbyqxmd.com/read/28402265/systematical-comparison-of-biologically-active-foreign-ions-codoped-calcium-phosphate-microparticles-on-osteogenic-differentiation-in-rat-osteoporotic-and-normal-mesenchymal-stem-cells
#10
Xiao-Yi Chen, San-Zhong Xu, Xuan-Wei Wang, Xian-Yan Yang, Liang Ma, Lei Zhang, Guo-Jing Yang, Fan Yang, Lin-Hong Wang, Xin-Li Zhang, Kang Ting, Chang-You Gao, Xiao-Zhou Mou, Zhong-Ru Gou, Hai Zou
Osteoporosis is a disease characterized by structural deterioration of bone tissue, leading to skeletal fragility with increased fracture risk. Calcium phosphates (CaPs) are widely used in bone tissue engineering strategies as they have similarities to bone apatite except for the absence of trace elements (TEs) in the CaPs. Bioactive glasses (BGs) have also been used successfully in clinic for craniomaxillofacial and dental applications during the last two decades due to their excellent potential for bonding with bone and inducing osteoblastic differentiation...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28402144/expression-and-localization-of-yap-and-taz-during-development-of-the-mandibular-first-molar-in-rats
#11
B Zhang, B Y Sun, Y W Ji, Y P Zhang, X X Wang, X Xu, Y Wen
Yes-associated protein (Yap) and transcriptional coactivator with PDZ-binding motif (Taz) are two downstream factors in the Hippo signaling pathway. Yap and Taz participate in regulating organ size, stem cell self-renewal, proliferation and differentiation. We investigated the spatial-temporal expression and relative expression levels of Yap and Taz using immunohistochemistry and real-time polymerase chain reaction. We found Yap and Taz in the oral epithelium and mesenchyme at embryonic (E) day 14.5 (E14.5) and E16...
2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28401887/bone-marrow-mesenchymal-stem-cells-combine-with-treated-dentin-matrix-to-build-biological-root
#12
Shiwei Luo, Fei Pei, Wen Zhang, Weihua Guo, Rui Li, Wei He, Weidong Tian
Treated dentin matrix (TDM) as a kind of scaffolding material has been proved odontogenic induction ability on dental-derived stem cells. Given the limited resources of dental stem cells, it is necessary to seek new seed cell which easily obtained. Jaw bone marrow mesenchymal stem cell (JBMMSC) as non-dental-derived stem cell relates to the development of teeth and jaws which suggest us JBMMSCs could act as a new seed cell for tooth tissue engineering. To assess the odontogenic and osteogenic potential of JBMMSCs, cells were induced by TDM extraction in vitro and combined with TDM in vivo...
April 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28394043/efficacy-of-stem-cells-on-periodontal-regeneration-systematic-review-of-pre-clinical-studies
#13
REVIEW
S A Tassi, N Z Sergio, M Y O Misawa, C C Villar
This systematic review aims to evaluate mesenchymal stem cells (MSC) periodontal regenerative potential in animal models. MEDLINE, EMBASE and LILACS databases were searched for quantitative pre-clinical controlled animal model studies that evaluated the effect of local administration of MSC on periodontal regeneration. The systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement guidelines. Twenty-two studies met the inclusion criteria. Periodontal defects were surgically created in all studies...
April 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28387248/mir-1827-inhibits-osteogenic-differentiation-by-targeting-igf1-in-msmscs
#14
ShuangXi Zhu, Wei Peng, Xiang Li, JunQuan Weng, Xing Zhang, JunBing Guo, DaiYing Huang, Qiong Rong, SongLing Chen
We recently reported that maxillary sinus membrane stem cells (MSMSCs) have osteogenic potential. However, the biological mechanisms of bone formation remain unclear. In this study, we investigated the role and mechanisms of microRNAs (miRNAs) in the osteogenic differentiation of MSMSCs. The expression of miRNAs was determined in differentiated MSMSCs by comprehensive miRNA microarray analysis and quantitative RT-PCR (qRT-PCR). We selected miR-1827 for functional follow-up studies to explore its significance in MSMSCs...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28386853/assessment-of-bone-regeneration-of-a-tissue-engineered-bone-complex-using-human-dental-pulp-stem-cells-poly-%C3%AE%C2%B5-caprolactone-biphasic-calcium-phosphate-scaffold-constructs-in-rabbit-calvarial-defects
#15
Natkrita Wongsupa, Thongchai Nuntanaranont, Suttatip Kamolmattayakul, Nuttawut Thuaksuban
The objective of the present study was to investigate the effect of a fabricated combination of poly-ɛ-caprolactone (PCL)-biphasic calcium phosphate (BCP) with the modified melt stretching and multilayer deposition (mMSMD) technique on human dental pulp stem cell (hDPSC) differentiation to be osteogenic like cells for bone regeneration of calvarial defects in rabbit models. hDPSCs extracted from human third molars were seeded onto mMSMD PCL-BCP scaffolds and the osteogenic gene expression was tested prior to implantation in vivo...
May 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28385446/dental-and-orofacial-mesenchymal-stem-cells-in-craniofacial-regeneration-the-prosthodontist-s-point-of-view
#16
REVIEW
Sahar Ansari, Jackson T Seagroves, Chider Chen, Kumar Shah, Tara Aghaloo, Benjamin M Wu, Sompop Bencharit, Alireza Moshaverinia
Of the available regenerative treatment options, craniofacial tissue regeneration using mesenchymal stem cells (MSCs) shows promise. The ability of stem cells to produce multiple specialized cell types along with their extensive distribution in many adult tissues have made them an attractive target for applications in tissue engineering. MSCs reside in a wide spectrum of postnatal tissue types and have been successfully isolated from orofacial tissues. These dental- or orofacial-derived MSCs possess self-renewal and multilineage differentiation capacities...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28380697/graphene-oxide-enrichment-collagen-membranes-improves-dpscs-differentiation-and-controls-inflammation-occurrence
#17
Milena Radunovic, Marianna De Colli, Patrizia De Marco, Chiara Di Nisio, Antonella Fontana, Adriano Piattelli, Amelia Cataldi, Susi Zara
Collagen membranes are used in oral surgery for bone defects treatment acting as a barrier that does not allow the invasion of soft tissue into the growing bone. To improve biocompatibility collagen membranes were coated with graphene oxide (GO), a graphene derivative. The aim of this study was to investigate the biocompatibility of GO coated collagen membranes on human dental pulp stem cells (DPSCs) focusing on biomaterial cytotoxicity, ability to promote DPSCs differentiation process and to control inflammation event induction...
April 5, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28377925/isolation-of-mesenchymal-stem-cells-from-human-deciduous-teeth-pulp
#18
Aileen I Tsai, Hsiang-Hsi Hong, Wey-Ran Lin, Jen-Fen Fu, Chih-Chun Chang, I-Kuan Wang, Wen-Hung Huang, Cheng-Hao Weng, Ching-Wei Hsu, Tzung-Hai Yen
This study aimed to identify predictors of success rate of mesenchymal stem cell (MSC) isolation from human deciduous teeth pulp. A total of 161 deciduous teeth were extracted at the dental clinic of Chang Gung Memorial Hospital. The MSCs were isolated from dental pulps using a standard protocol. In total, 128 colonies of MSCs were obtained and the success rate was 79.5%. Compared to teeth not yielding MSCs successfully, those successfully yielding MSCs were found to have less severe dental caries (no/mild-to-moderate/severe: 63...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28369866/stem-cells-applications-in-bone-and-tooth-repair-and-regeneration-new-insights-tools-and-hopes
#19
Eiman Abdel Meguid, Yuehai Ke, Junfeng Ji, Ahmed Hk El-Hashash
The exploration of stem and progenitor cells holds promise for advancing our understanding of the biology of tissue repair and regeneration mechanisms after injury. This will also help in the future use of stem cell therapy for the development of regenerative medicine approaches for the treatment of different tissue-specie defects or disorders such as bone, cartilages and tooth defects or disorders. Bone is a specialized connective tissue, with mineralized extracellular components that provide bones with both strength and rigidity, and thus enable bones to function in body mechanical supports and necessary locomotion process...
March 30, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28369799/effect-of-dental-pulp-stem-cells-in-mptp-induced-old-aged-mice-model
#20
Nareshwaran Gnanasegaran, Vijayendran Govindasamy, Christopher Simon, Quan Fu Gan, Vui King Vincent-Chong, Vasudevan Mani, Kesavanarayanan Krishnan Selvarajan, Vellayan Subramaniam, Sabri Musa, Noor Hayaty Abu Kasim
BACKGROUND: Parkinson's disease (PD) is a neurodegenerative disease caused by the loss of dopaminergic (DA-ergic) neurons in the substantia nigra (SN) and represented as a huge threat to the geriatric population. Cell replacement therapies (CRTs) have been proposed as a promising strategy to slow down or replace neuronal loss. Among the widely available cell sources, dental pulp stem cells (DPSCs) portray as an attractive source primarily due to their neural crest origin, ease of tissue procurement and less ethical hurdles...
March 30, 2017: European Journal of Clinical Investigation
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