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Dental stem cell

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https://www.readbyqxmd.com/read/29165423/meeting-report-a-hard-look-at-the-state-of-enamel-research
#1
REVIEW
Ophir D Klein, Olivier Duverger, Wendy Shaw, Rodrigo S Lacruz, Derk Joester, Janet Moradian-Oldak, Megan K Pugach, J Timothy Wright, Sarah E Millar, Ashok B Kulkarni, John D Bartlett, Thomas Gh Diekwisch, Pamela DenBesten, James P Simmer
The Encouraging Novel Amelogenesis Models and Ex vivo cell Lines (ENAMEL) Development workshop was held on 23 June 2017 at the Bethesda headquarters of the National Institute of Dental and Craniofacial Research (NIDCR). Discussion topics included model organisms, stem cells/cell lines, and tissues/3D cell culture/organoids. Scientists from a number of disciplines, representing institutions from across the United States, gathered to discuss advances in our understanding of enamel, as well as future directions for the field...
November 22, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/29162863/pulse-frequency-dependency-of-photobiomodulation-on-the-bioenergetic-functions-of-human-dental-pulp-stem-cells
#2
Hong Bae Kim, Ku Youn Baik, Pill-Hoon Choung, Jong Hoon Chung
Photobiomodulation (PBM) therapy contributes to pain relief, wound healing, and tissue regeneration. The pulsed wave (PW) mode has been reported to be more effective than the continuous wave (CW) mode when applying PBM to many biological systems. However, the reason for the higher effectiveness of PW-PBM is poorly understood. Herein, we suggest using delayed luminescence (DL) as a reporter of mitochondrial activity after PBM treatment. DL originates mainly from mitochondrial electron transport chain systems, which produce reactive oxygen species (ROS) and adenosine triphosphate (ATP)...
November 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29160181/chick-embryo-model-homing-and-host-interactions-of-tissue-engineering-aimed-human-dental-stem-cells
#3
Jennifer Adriane Dos Santos, Monica Talarico Duailibi, Durvanei Augusto Maria, Sonia Elisabete Alves de Lima Will, Paulo Cesar Simoes Silva, Ligia Ferreira Gomes, Silvio Eduardo Duailibi
Human dental stem cells (hDSC) have a potential for regenerative therapies and could differentiate in vitro into many tissues such as dentin, nerve and vascular endothelium. Gallus gallus domesticus developing fertilized egg, or chick embryo is an experimental model absent of xenografts rejection, largely employed in replacement of mammal species in scientific research and pre-clinical studies to evaluate angiogenesis and vasculogenesis, tissue differentiation, and embryonic development. This multiscale research deals with the homing and cell signaling effects of a standardized hDSC towards the receptor tissues of Gallus gallus domesticus in ovo...
November 21, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29159326/overexpression-of-id1-reverses-the-repression-of-human-dental-pulp-stem-cells-differentiation-induced-by-twist1-silencing
#4
Izabela Maciejewska, Monika Sakowicz-Burkiewicz, Marta Krzeminska, Tadeusz Pawelczyk
Multiple studies showed that the cessation of TWIST1 expression is the prerequisite for osteoblasts' maturation. However, recent reports revealed that the function of TWIST1 is different in the dental pulp stem cells (DPSCs), where a high level of TWIST1 expression promoted DPSCs' differentiation. The aim of the study was to investigate the impact of TWIST1 and ID1 on the differentiation process in the human DPSCs. METHODS: TWIST1 and ID1 expression in the DSPCs was modulated by lentivirus transduction...
November 20, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29151064/the-oral-cavity-potential-source-of-stem-cells
#5
Rafał Brożek, Maciej Kurpisz, Ryszard Koczorowski
The purpose of this review is to present the current knowledge regarding the hierarchy of stem cells originating from the oral cavity, which could have a potential value when applied to regenerative stomatology. It must be particularly emphasized that the heterogenous nature of its biology and function within oral compartment may predispose them to different types of applications. Stem cells can be perceived as immature, primitive and unspecialized types of cells with the ability to proliferate, self-renew and differentiate into specialized progeny according to the compartmental signaling...
October 19, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/29150644/therapeutic-effects-of-hepatocyte-growth-factor-overexpressing-dental-pulp-stem-cells-on-liver-cirrhosis-in-a-rat-model
#6
Xiao-Fang Cao, Shi-Zhu Jin, Liang Sun, Yuan-Bo Zhan, Feng Lin, Ying Li, Ying-Lian Zhou, Xiu-Mei Wang, Li Gao, Bin Zhang
Cirrhosis is the terminal stage of hepatic diseases and is prone to develop into hepatocyte carcinoma. Increasing evidence suggests that the transplantation of dental pulp stem cells (DPSCs) may promote recovery from cirrhosis, but the key regulatory mechanisms involved remain to be determined. In this study, we overexpressed human hepatocyte growth factor (hHGF) in primary rat DPSCs and evaluated the effects of HGF overexpression on the biological behaviors and therapeutic efficacy of grafted DPSCs in cirrhosis...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29149082/the-biological-properties-of-ogi-surfaces-positively-act-on-osteogenic-and-angiogenic-commitment-of-mesenchymal-stem-cells
#7
Paolo Ghensi, Eriberto Bressan, Chiara Gardin, Letizia Ferroni, Maria Costanza Soldini, Federico Mandelli, Claudio Soldini, Barbara Zavan
Osteogenesis process displays a fundamental role during dental implant osteointegration. In the present work, we studied the influence of Osteon Growth Induction (OGI) surface properties on the angiogenic and osteogenic behaviors of Mesenchymal Stem cells (MSC). MSC derived from dental pulp and HUVEC (Human Umbilical Vein Endothelial Cells) were grown in on OGI titanium surfaces, and cell proliferation and DNA synthesis were evaluated by MTT [3-(4,5-dimethylthiazol-2yl)-2,5-diphenyltetrazolium bromide] test and DNA quantification...
November 17, 2017: Materials
https://www.readbyqxmd.com/read/29143185/osteogenic-prospective-of-deriving-human-dental-stem-cells-in-collagen-matrix-boost
#8
Tong-Jing Fang, Ding-Han Wang, Chia-Yu Wang, Raju Poongodi, Nien-Hsien Liou, Jiang-Chuan Liu, Ming-Lun Hsu, Po-Da Hong, Shih-Fang Yang, Meng-Lun Liu
Stem cells derived from oral tissue represent a highly attractive alternative source for clinical bone regeneration because they can be collected by non-invasive or minimally invasive procedures. Herein, we describe the human dental stem cells (DSCs) deriving from buccal fat pads (BFP), dental pulp (DP) of impacted teeth, and periodontal ligaments (PDL) to obtain BFPSCs, DPSCs, and PDLSCs, respectively. Cells were purified with selected medium and expanded through passages in stem cell culture medium. Purified cells were characterized for stemness by their growth rate, immunostaining, and multilineage differentiation ability...
November 15, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29141554/insight-into-the-role-of-long-non-coding-rnas-during-osteogenesis-in-mesenchymal-stem-cells
#9
Sibei Huo, Yachuan Zhou, Xinyu He, Mian Wan, Wei Du, Xin Xu, Ling Ye, Xuedong Zhou, Liwei Zheng
BACKGROUND: Long non-coding RNAs (LncRNAs) are non-protein coding transcripts longer than 200 nucleotides in length. Instead of being "transcriptional noise", lncRNAs are emerging as a key modulator in various biological processes and disease development. Mesenchymal stem cells can be isolated from various adult tissues, such as bone marrow and dental tissues. The differentiation processes into multiple lineages, such as osteogenic differentiation, are precisely orchestrated by molecular signals in both genetic and epigenetic ways...
November 15, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29140074/facile-and-versatile-strategy-for-construction-of-anti-inflammatory-and-antibacterial-surfaces-with-polydopamine-mediated-liposomes-releasing-dexamethasone-and-minocycline-for-potential-implants-applications
#10
Xiao Xu, Lixin Wang, Zuyuan Luo, Yaofeng Ni, Haitao Sun, Xiang Gao, Yongliang Li, Siqi Zhang, Yan Li, Shicheng Wei
Reducing early nonbacterial inflammation induced by implanted materials and infection resulting from bacterial contamination around the implant-abutment interface could greatly accelerate implant osseointegration and reduce implant failure, which would be of clinical significance. In this study, we developed a facile and versatile strategy for the construction of anti-inflammatory and antibacterial surfaces on implants, such as orthopedic/dental implants. Briefly, the surfaces of polystyrene (PS) culture plates were first coated with polydopamine and then decorated with dexamethasone plus minocycline-loaded liposomes (Dex/Mino liposomes), which was confirmed by contact angle goniometry, X-ray photoelectron spectroscopy, and fluorescence microscopy...
November 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29139614/human-dental-stem-cell-derived-transgene-free-ipscs-generate-functional-neurons-via-embryoid-body-mediated-and-direct-induction-methods
#11
Ikbale El Ayachi, Jun Zhang, Xiao-Ying Zou, Zongdong Yu, Wei Wei, Kristen M S O'Connell, George T-J Huang
Induced pluripotent stem cells (iPSCs) give rise to neural stem/progenitor cells (NSCs), serving as a good source for neural regeneration. Here, we established transgene-free (TF) iPSCs from dental stem cells (DSCs) and determined their capacity to differentiate into functional neurons in vitro. Generated TF iPSCs from stem cells of apical papilla (SCAP) and dental pulp stem cells (DPSCs) underwent two methods -- embryoid body (EB)-mediated and direct induction, to guide TF-DSC iPSCs along with H9 or H9 Syn-GFP (human embryonic stem cells) into functional neurons in vitro...
November 15, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29131087/deferoxamine-induced-migration-and-odontoblast-differentiation-via-ros-dependent-autophagy-in-dental-pulp-stem-cells
#12
Xuan Wang, Tian Tian Wu, Long Jiang, Du Rong, Ya Qin Zhu
BACKGROUND/AIMS: As a vital degradation and recycling system, autophagy plays an essential role in regulating the differentiation of stem cells. We previously showed that iron chelator deferoxamine (DFO) could promote the repair ability of dental pulp stem cells (DPSCs). Here, we investigated the effect of DFO in autophagy and the role of autophagy in regulating the migration and odontoblast differentiation of DPSCs. METHODS: Transmission electron microscopy, immunofluorescence staining and western blotting were performed to evaluate the autophagic activity of DPSCs...
November 1, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29130547/mir-140-5p-mediated-regulation-of-the-proliferation-and-differentiation-of-human-dental-pulp-stem-cells-occurs-through-the-lipopolysaccharide-toll-like-receptor-4-signaling-pathway
#13
De-Gang Sun, Bing-Chang Xin, Di Wu, Lei Zhou, Hong-Bin Wu, Wen Gong, Jian Lv
Human dental pulp stem cells (DPSCs) are oral mesenchymal stem cells with potential to differentiate into various cell types. Recent studies of DPSCs have focused on microRNAs (miRNAs), a class of small noncoding RNAs that play crucial roles in regulating DPSC phenotypes. In the current study, the expression of miR-140-5p was significantly decreased during lipopolysaccharide (LPS)-mediated differentiation of DPSCs in vitro. Overexpression of miR-140-5p enhanced proliferation of DPSCs and inhibited DPSC differentiation, whereas suppression of miR-140-5p produced the opposite effect...
December 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/29121452/3d-maskless-micropatterning-for-regeneration-of-highly-organized-tubular-tissues
#14
Chi Ma, Tiejun Qu, Bei Chang, Yan Jing, Jerry Q Feng, Xiaohua Liu
Micropatterning is a widely used powerful tool to create highly ordered microstructures on material surfaces. However, due to technical limitations, the integration of micropatterned microstructures into bioinspired 3D scaffolds to successfully regenerate well-organized functional tissues is not achieved. In this work, a unique maskless micropatterning technology is reported to create 3D nanofibrous matrices with highly organized tubular architecture for tissue regeneration. This micropatterning method is a laser-guided, noncontact, high-precision, flexible computer programming of machining process that can create highly ordered tubules with the density ranged from 1000 to 60 000 mm(-2) and the size varied from 300 nm to 30 µm in the bioinspired 3D matrix...
November 9, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29118330/molecular-spectrum-of-secretome-regulates-the-relative-hepatogenic-potential-of-mesenchymal-stem-cells-from-bone-marrow-and-dental-tissue
#15
Ajay Kumar, Vinod Kumar, Vidya Rattan, Vivekananda Jha, Arnab Pal, Shalmoli Bhattacharyya
Liver regeneration is a spontaneous process that occurs after liver injury, but acute liver failure is a complex and fatal disease which is difficult to treat. Cell-based therapies are promising alternative therapeutic approach for liver failure and different cell sources have been tested in this regard. We investigated the comparative hepatogenic potential of human bone marrow stem cells (BMSC) with stem cells derived from human dental pulp (DPSC), apical papilla (SCAP) and follicle (DFSC) during this study...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29117466/dental-properties-ultrastructure-and-pulp-cells-associated-with-a-novel-dspp-mutation
#16
Thantrira Porntaveetus, Thanaphum Osathanon, Nunthawan Nowwarote, Prasit Pavasant, Chalurmpon Srichomthong, Kanya Suphapeetiporn, Vorasuk Shotelersuk
OBJECTIVE: To investigate physical characteristics and behaviours of dental pulp cells of teeth isolated from a dentinogenesis imperfecta (DGI) patient with a novel DSPP mutation. SUBJECTS AND METHODS: Whole exome and Sanger sequencing were employed to identify mutations. Physical characteristics of the teeth were examined. Pulp cells' behaviors including cell proliferation, colony forming unit, osteogenic differentiation, pluripotent markers, and mesenchymal stem cell markers were investigated...
November 8, 2017: Oral Diseases
https://www.readbyqxmd.com/read/29116936/neurophysiological-aspects-of-the-trigeminal-sensory-system-an-update
#17
Frederic Van der Cruyssen, Constantinus Politis
The trigeminal system is one of the most complex cranial nerve systems of the human body. Research on it has vastly grown in recent years and concentrated more and more on molecular mechanisms and pathophysiology, but thorough reviews on this topic are lacking, certainly on the normal physiology of the trigeminal sensory system. Here we review the current literature on neurophysiology of the trigeminal nerve from peripheral receptors up to its central projections toward the somatosensory cortex. We focus on the most recent scientific discoveries and describe historical relevant research to substantiate further...
November 8, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/29114582/engineering-microdent-structures-of-bone-implant-surfaces-to-enhance-osteogenic-activity-in-mscs
#18
Sophia Li, Thomas Chow, Julia Chu
Problems persist with the integration of hip and dental implants with host bone tissues, which may result in long-term implant failure. Previous studies have found that implants bearing irregular surfaces can facilitate osseointegration. An improvement to this approach would use implant surfaces harboring a well-defined surface microstructure to decrease variability in implant surfaces. In this study, we tested whether well-defined surfaces with arrays of microdents (each with depth approximately 3 µm) significantly affected the morphology, proliferation, and osteogenic activity of mesenchymal stem cells (MSCs)...
March 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/29114433/scientific-basis-of-dentistry
#19
REVIEW
Yegane Guven
Technological and scientific innovations have increased exponentially over the past years in the dentistry profession. In this article, these developments are evaluated both in terms of clinical practice and their place in the educational program. The effect of the biologic and digital revolutions on dental education and daily clinical practice are also reviewed. Biomimetics, personalized dental medicine regenerative dentistry, nanotechnology, high-end simulations providing virtual reality, genomic information, and stem cell studies will gain more importance in the coming years, moving dentistry to a different dimension...
2017: J Istanb Univ Fac Dent
https://www.readbyqxmd.com/read/29110535/dental-stem-cells-in-tooth-regeneration-and-repair-in-the-future
#20
Christian Morsczeck, Torsten E Reichert
Human dental stem cells can be obtained from postnatal teeth, extracted wisdom teeth or exfoliated deciduous teeth. Due to their differentiation potential, these mesenchymal stem cells are promising for tooth repair. Therefore, the development of dental tissue regeneration represents a suitable but challenging, target for dental stem cell therapies. Areas covered: In this review, the authors provide an overview of human dental stem cells and their properties for regeneration medicine. Numerous preclinical studies have shown that dental stem cells improve bone augmentation and healing of periodontal diseases...
November 7, 2017: Expert Opinion on Biological Therapy
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