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periodontal tissue engineer

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https://www.readbyqxmd.com/read/27890225/applications-of-mesenchymal-stem-cells-in-oral-and-craniofacial-regeneration
#1
REVIEW
Pasha Shakoori, Quanzhou Zhang, Anh D Le
The field of tissue engineering and regenerative medicine has been rapidly expanded through multidisciplinary integration of research and clinical practice in response to unmet clinical needs for reconstruction of dental, oral, and craniofacial structures. The significance of the various types of stem cells, specifically mesenchymal stem cells derived from the orofacial tissues, ranging from dental pulp stem cells to periodontal ligament stem cells to mucosa/gingiva has been thoroughly investigated and their applications in tissue regeneration are outlined in this article...
February 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/27870141/periodontal-tissue-engineering-by-nano-beta-tricalcium-phosphate-scaffold-and-fibroblast-growth-factor-2-in-one-wall-infrabony-defects-of-dogs
#2
K Ogawa, H Miyaji, A Kato, Y Kosen, T Momose, T Yoshida, E Nishida, S Miyata, S Murakami, H Takita, B Fugetsu, T Sugaya, M Kawanami
BACKGROUND AND OBJECTIVE: Nanoparticle bioceramics are being investigated for biomedical applications. We fabricated a regenerative scaffold comprising type I collagen and beta-tricalcium phosphate (β-TCP) nanoparticles. Fibroblast growth factor-2 (FGF-2) is a bioeffective signaling molecule that stimulates cell proliferation and wound healing. This study examined the effects, on bioactivity, of a nano-β-TCP/collagen scaffold loaded with FGF-2, particularly on periodontal tissue wound healing...
December 2016: Journal of Periodontal Research
https://www.readbyqxmd.com/read/27842561/composite-cell-sheet-for-periodontal-regeneration-crosstalk-between-different-types-of-mscs-in-cell-sheet-facilitates-complex-periodontal-like-tissue-regeneration
#3
Hao Zhang, Shiyu Liu, Bin Zhu, Qiu Xu, Yin Ding, Yan Jin
BACKGROUND: Tissue-engineering strategies based on mesenchymal stem cells (MSCs) and cell sheets have been widely used for periodontal tissue regeneration. However, given the complexity in periodontal structure, the regeneration methods using a single species of MSC could not fulfill the requirement for periodontal regeneration. METHODS: We researched the interaction between the periodontal ligament stem cells (PDLSCs) and jaw bone marrow-derived mesenchymal stem cells (JBMMSCs), and constructed a composite cell sheet comprising both of the above MSCs to regenerate complex periodontium-like structures in nude mice...
November 14, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27737353/immunohistochemical-expression-of-tgf-%C3%AE-1-and-osteonectin-in-engineered-and-ca-oh-2-repaired-human-pulp-tissues
#4
Luiz Alexandre Chisini, Marcus Cristian Muniz Conde, Jose Carlos Bernedo Alcázar, Adriana Fernandes da Silva, Jacques Eduardo Nör, Sandra Beatriz Chaves Tarquinio, Flávio Fernando Demarco
The aim of the present study was to evaluate the expression of transforming growth factor-β1 (TGF-β1) and osteonectin (ON) in pulp-like tissues developed by tissue engineering and to compare it with the expression of these proteins in pulps treated with Ca(OH)2 therapy. Tooth slices were obtained from non-carious human third molars under sterile procedures. The residual periodontal and pulp soft tissues were removed. Empty pulp spaces of the tooth slice were filled with sodium chloride particles (250-425 µm)...
October 10, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27711028/platelet-rich-fibrin-a-boon-in-regenerative-endodontics
#5
Priyanka D Rebentish, Girish Umashetty, Harpreet Kaur, Trupthi Doizode, Mithun Kaslekar, Shouvik Chowdhury
Research into regenerative dentistry has contributed momentum to the field of molecular biology. Periapical surgery aims at removing periapical pathology to achieve complete wound healing and regeneration of bone and periodontal tissue. Regenerative endodontic procedures are widely being added to the current armamentarium of pulp therapy procedures. The regenerative potential of platelets has been deliberated. Platelet-rich fibrin (PRF) is a wonderful tissue-engineering product and has recently gained much popularity due its promising results in wound healing bone induction...
December 2016: Minerva Stomatologica
https://www.readbyqxmd.com/read/27704706/computational-design-and-engineering-of-polymeric-orthodontic-aligners
#6
S Barone, A Paoli, A V Razionale, R Savignano
Transparent and removable aligners represent an effective solution to correct various orthodontic malocclusions through minimally invasive procedures. An aligner-based treatment requires patients to sequentially wear dentition-mating shells obtained by thermoforming polymeric disks on reference dental models. An aligner is shaped introducing a geometrical mismatch with respect to the actual tooth positions to induce a loading system, which moves the target teeth toward the correct positions. The common practice is based on selecting the aligner features (material, thickness, and auxiliary elements) by only considering clinician's subjective assessments...
October 5, 2016: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/27695327/fabrication-of-gelatin-methacrylate-nanohydroxyapatite-microgel-arrays-for-periodontal-tissue-regeneration
#7
Xi Chen, Shizhu Bai, Bei Li, Huan Liu, Guofeng Wu, Sha Liu, Yimin Zhao
INTRODUCTION: Periodontitis is a chronic infectious disease and is the major cause of tooth loss and other oral health issues around the world. Periodontal tissue regeneration has therefore always been the ultimate goal of dentists and researchers. Existing fabrication methods mainly focused on a top-down tissue engineering strategy in which several drawbacks remain, including low throughput and limited diffusion properties resulting from a large sample size. Gelatin methacrylate (GelMA) is a kind of photocrosslinkable and biocompatible hydrogel, with the capacities of enabling cell encapsulation and regeneration of functional tissues...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27688777/the-neurovascular-properties-of-dental-stem-cells-and-their-importance-in-dental-tissue-engineering
#8
REVIEW
Jessica Ratajczak, Annelies Bronckaers, Yörg Dillen, Pascal Gervois, Tim Vangansewinkel, Ronald B Driesen, Esther Wolfs, Ivo Lambrichts, Petra Hilkens
Within the field of tissue engineering, natural tissues are reconstructed by combining growth factors, stem cells, and different biomaterials to serve as a scaffold for novel tissue growth. As adequate vascularization and innervation are essential components for the viability of regenerated tissues, there is a high need for easily accessible stem cells that are capable of supporting these functions. Within the human tooth and its surrounding tissues, different stem cell populations can be distinguished, such as dental pulp stem cells, stem cells from human deciduous teeth, stem cells from the apical papilla, dental follicle stem cells, and periodontal ligament stem cells...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27684563/formulation-and-in-vitro-in-vivo-evaluation-of-a-new-osteoprotegerin-chitosan-gel-for-bone-tissue-regeneration
#9
Soher Nagi Jayash, Najihah Mohd Hashim, Misni Misran, N A Baharuddin
The osteoprotegerin (OPG) system plays a critical role in bone remodelling by regulating osteoclast formation and activity. The study aimed to determine the physicochemical properties and biocompatibility of a newly formulated OPG-chitosan gel. The OPG-chitosan gel was formulated using human OPG protein and water-soluble chitosan. The physicochemical properties were determined using Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Gel morphology was determined using scanning electron microscopy (SEM) and then it was subjected to a protein release assay and biodegradability test...
September 29, 2016: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27648076/innovative-dental-stem-cell-based-research-approaches-the-future-of-dentistry
#10
REVIEW
Shayee Miran, Thimios A Mitsiadis, Pierfrancesco Pagella
Over the past decade, the dental field has benefited from recent findings in stem cell biology and tissue engineering that led to the elaboration of novel ideas and concepts for the regeneration of dental tissues or entire new teeth. In particular, stem cell-based regenerative approaches are extremely promising since they aim at the full restoration of lost or damaged tissues, ensuring thus their functionality. These therapeutic approaches are already applied with success in clinics for the regeneration of other organs and consist of manipulation of stem cells and their administration to patients...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27633707/human-periodontal-ligament-stem-cells-cultured-onto-cortico-cancellous-scaffold-drive-bone-regenerative-process
#11
F Diomede, N Zini, V Gatta, S Fulle, I Merciaro, M D'Aurora, R M La Rovere, T Traini, J Pizzicannella, P Ballerini, S Caputi, A Piattelli, O Trubiani
The purpose of this work was to test, in vitro and in vivo, a new tissue-engineered construct constituted by porcine cortico-cancellous scaffold (Osteobiol Dual Block) (DB) and xeno-free ex vivo culture of human Periodontal Ligament Stem Cells (hPDLSCs). hPDLSCs cultured in xeno-free media formulation preserved the stem cells' morphological features, the expression of stemness and pluripotency markers, and their ability to differentiate into mesenchymal lineage. Transmission electron microscopy analysis suggested that after one week of culture, both noninduced and osteogenic differentiation induced cells joined and grew on DB secreting extracellular matrix (ECM) that in osteogenic induced samples was hierarchically assembled in fibrils...
2016: European Cells & Materials
https://www.readbyqxmd.com/read/27624174/double-layered-cell-transfer-technology-for-bone-regeneration
#12
Keiko Akazawa, Kengo Iwasaki, Mizuki Nagata, Naoki Yokoyama, Hirohito Ayame, Kazumasa Yamaki, Yuichi Tanaka, Izumi Honda, Chikako Morioka, Tsuyoshi Kimura, Motohiro Komaki, Akio Kishida, Yuichi Izumi, Ikuo Morita
For cell-based medicine, to mimic in vivo cellular localization, various tissue engineering approaches have been studied to obtain a desirable arrangement of cells on scaffold materials. We have developed a novel method of cell manipulation called "cell transfer technology", enabling the transfer of cultured cells onto scaffold materials, and controlling cell topology. Here we show that using this technique, two different cell types can be transferred onto a scaffold surface as stable double layers or in patterned arrangements...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27614434/conditioned-media-from-differentiating-craniofacial-bone-marrow-stromal-cells-influence-mineralization-and-proliferation-in-periodontal-ligament-stem-cells
#13
Zhenyu Jin, Yuan Feng, Hongwei Liu
Previous reports have mainly focused on the behavioral responses of human periodontal ligament stem cells (hPDLSCs) in interaction with tibia bone marrow stromal cells (BMSCs). However, there is little study on the biologic features of hPDLSCs under the induction of maxilla BMSCs (M-BMSCs) at different phases of osteogenic differentiation. We hypothesized that M-BMSCs undergoing osteogenic differentiation acted on the proliferation, differentiation, and bone-forming capacity of hPDLSCs. In this paper, primary hPDLSCs and human M-BMSCs (hM-BMSCs) were expanded in vitro...
October 2016: Human Cell
https://www.readbyqxmd.com/read/27613193/collagen-based-barrier-membranes-for-periodontal-guided-bone-regeneration-applications
#14
Zeeshan Sheikh, Javairia Qureshi, Abdullah M Alshahrani, Heba Nassar, Yuichi Ikeda, Michael Glogauer, Bernhard Ganss
Certain cell populations within periodontal tissues possess the ability to induce regeneration, provided they have the opportunity to populate the wound or defect. Guided regeneration techniques have been investigated for regenerating periodontal tissues and such therapies usually utilize barrier membranes. Various natural and synthetic barrier membranes have been fabricated and tested to prevent epithelial and connective tissue cells from invading while allowing periodontal cells to selectively migrate into the defect...
September 9, 2016: Odontology
https://www.readbyqxmd.com/read/27612840/recent-advancements-in-regenerative-dentistry-a-review
#15
REVIEW
Pouya Amrollahi, Brinda Shah, Amir Seifi, Lobat Tayebi
Although human mouth benefits from remarkable mechanical properties, it is very susceptible to traumatic damages, exposure to microbial attacks, and congenital maladies. Since the human dentition plays a crucial role in mastication, phonation and esthetics, finding promising and more efficient strategies to reestablish its functionality in the event of disruption has been important. Dating back to antiquity, conventional dentistry has been offering evacuation, restoration, and replacement of the diseased dental tissue...
December 1, 2016: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27609047/the-role-of-a-platelet-lysate-based-compartmentalized-system-as-a-carrier-of-cells-and-platelet-origin-cytokines-for-periodontal-tissue-regeneration
#16
Pedro S Babo, Xinjie Cai, Adelina S Plachokova, Rui L Reis, John A Jansen, Manuela E Gomes, X Frank Walboomers
Currently available clinical therapies are not capable to regenerate tissues that are lost by periodontitis. Tissue engineering can be applied as a strategy to regenerate reliably the tissues and function of damaged periodontium. A prerequisite for this regeneration is the colonization of the defect with the adequate cell populations. In this study, we proposed a bilayered system composed of (1) a platelet lysate (PL)-based construct produced by crosslinking of PL proteins with genipin (gPL) for the delivery of rat periodontal ligament cells (rat-PDLCs); combined with (2) an injectable composite consisting of calcium phosphate cement incorporated with PL-loaded poly(d, l-lactic-co-glycolic acid) microspheres...
October 2016: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/27600358/the-differentiation-potential-of-gingival-mesenchymal-stem-cells-induced-by-apical-tooth-germ-cell%C3%A2-conditioned-medium
#17
Yan Chen, Hongwei Liu
Gingival-derived mesenchymal stem cells (GMSCs) have recently been harvested; however, the use of GMSCs in periodontal tissue engineering requires further study. The present study established an indirect co‑culture system between rat apical tooth germ‑conditioned medium (APTG‑CM) and GMSCs, in order to determine the effects on periodontal tissue differentiation in vitro and in vivo. Using the limiting dilution technique, single‑colony derived human GMSCs and periodontal ligament stem cells (PDLSCs) were isolated and expanded to obtain homogeneous populations...
October 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27594561/gingiva-as-a-new-and-the-most-accessible-source-of-mesenchymal-stem-cells-from-the-oral-cavity-to-be-used-in-regenerative-therapies
#18
Bartłomiej Górski
Since the discovery of bone marrow mesenchymal stem cells (BMMSCs), many researchers have focused their attention on new sources of mesenchymal stem cells (MSCs). Consequently, MSCs that display self-renewal capacity, multidifferentiation potential and immunomodulatory properties have been isolated from human oral tissues, including tooth, periodontal ligament, and gingiva. Oral MSCs involve dental pulp stem cells (DPSCs), stem cells from exfoliated deciduous teeth (SHED), periodontal ligament stem cells (PDLSCs), dental follicle stem cells (DFCs), stem cells from apical papilla (SCAP) and gingival stem cells (GMSCs)...
2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/27583044/collagen-hydrogel-scaffold-and-fibroblast-growth-factor-2-accelerate-periodontal-healing-of-class-ii-furcation-defects-in-dog
#19
Takehito Momose, Hirofumi Miyaji, Akihito Kato, Kosuke Ogawa, Takashi Yoshida, Erika Nishida, Syusuke Murakami, Yuta Kosen, Tsutomu Sugaya, Masamitsu Kawanami
OBJECTIVE: Collagen hydrogel scaffold exhibits bio-safe properties and facilitates periodontal wound healing. However, regenerated tissue volume is insufficient. Fibroblast growth factor-2 (FGF2) up-regulates cell behaviors and subsequent wound healing. We evaluated whether periodontal wound healing is promoted by application of collagen hydrogel scaffold in combination with FGF2 in furcation defects in beagle dogs. METHODS: Collagen hydrogel was fabricated from bovine type I collagen with an ascorbate-copper ion cross-linking system...
2016: Open Dentistry Journal
https://www.readbyqxmd.com/read/27582029/conditional-alpl-ablation-phenocopies-dental-defects-of-hypophosphatasia
#20
B L Foster, P Kuss, M C Yadav, T N Kolli, S Narisawa, L Lukashova, E Cory, R L Sah, M J Somerman, J L Millán
Loss-of-function mutations in ALPL result in hypophosphatasia (HPP), an inborn error of metabolism that causes defective skeletal and dental mineralization. ALPL encodes tissue-nonspecific alkaline phosphatase, an enzyme expressed in bone, teeth, liver, and kidney that hydrolyzes the mineralization inhibitor inorganic pyrophosphate. As Alpl-null mice die before weaning, we aimed to generate mouse models of late-onset HPP with extended life spans by engineering a floxed Alpl allele, allowing for conditional gene ablation (conditional knockout [cKO]) when crossed with Cre recombinase transgenic mice...
August 31, 2016: Journal of Dental Research
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