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periodontal tissue engineer

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https://www.readbyqxmd.com/read/28369866/stem-cells-applications-in-bone-and-tooth-repair-and-regeneration-new-insights-tools-and-hopes
#1
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/28350044/bone-morphogenetic-protein-2-enhances-the-osteogenic-differentiation-capacity-of-mesenchymal-stromal-cells-derived-from-human-bone-marrow-and-umbilical-cord
#2
Kulisara Marupanthorn, Chairat Tantrawatpan, Pakpoom Kheolamai, Duangrat Tantikanlayaporn, Sirikul Manochantr
Mesenchymal stromal cells (MSCs) are multipotent cells that can give rise to different cell types of the mesodermal lineages. They are powerful sources for cell therapy in regenerative medicine as they can be isolated from various tissues, and can be expanded and induced to differentiate into multiple lineages. Recently, the umbilical cord has been suggested as an alternative source of MSCs. Although MSCs derived from the umbilical cord can be induced to differentiate into osteoblasts with a phenotypic similarity to that of bone marrow-derived MSCs, the differentiation ability is not consistent...
February 1, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28345758/biodegradable-gelatin-beta-tricalcium-phosphate-sponges-incorporating-recombinant-human-fibroblast-growth-factor-2-for-treatment-of-recession-type-defects-a-split-mouth-study-in-dogs
#3
A Shujaa Addin, T Akizuki, S Hoshi, T Matsuura, T Ikawa, S Fukuba, M Matsui, Y Tabata, Y Izumi
BACKGROUND AND OBJECTIVE: Tissue engineering by using recombinant human (rh) growth factor technology may offer a promising therapeutic approach for treatment of gingival recession. Fibroblast growth factor-2 (FGF-2) has shown the ability to promote periodontal regeneration. Gelatin/beta-tricalcium phosphate (gelatin/β-TCP) sponges have been developed to control the release of growth factors. The present study evaluated the periodontal regenerative efficacy of rhFGF-2 by comparing gelatin/β-TCP sponges incorporated with rhFGF-2 to the scaffolds alone in artificially created recession-type defects in dogs...
March 27, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28335262/nanomaterials-for-tissue-engineering-in-dentistry
#4
REVIEW
Manila Chieruzzi, Stefano Pagano, Silvia Moretti, Roberto Pinna, Egle Milia, Luigi Torre, Stefano Eramo
The tissue engineering (TE) of dental oral tissue is facing significant changes in clinical treatments in dentistry. TE is based on a stem cell, signaling molecule, and scaffold triad that must be known and calibrated with attention to specific sectors in dentistry. This review article shows a summary of micro- and nanomorphological characteristics of dental tissues, of stem cells available in the oral region, of signaling molecules usable in TE, and of scaffolds available to guide partial or total reconstruction of hard, soft, periodontal, and bone tissues...
July 21, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28275782/-construction-of-leptin-gene-modified-tissue-engineered-composites-in-vitro
#5
Bao-Yu Zheng, Meng-Jiao He, Jun Jiang, Kai Luo, Yu-Ling Chen, Fu-Hua Yan
PURPOSE: To evaluate the feasibility of constructing tissue engineered composites in vitro by combining human leptin (hLEP) gene modified rat bone marrow stromal cells (BMSCs) and guided tissue regeneration collagen membrane (Bio-Gide). METHODS: BMSCs of SD rats were isolated and cultured by whole bone marrow adherent method. BMSCS were transfected with adenovirus carrying hLEP gene (Ad-hLEP-EGFP) and observed under inverted fluorescence microscope. Enzyme linked immunosorbent assay (ELISA) was used to detect the expression of hLEP...
December 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
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
#6
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/28214952/novel-potential-scaffold-for-periodontal-tissue-engineering
#7
Raquel Osorio, Camilo Andrés Alfonso-Rodríguez, Estrella Osorio, Antonio L Medina-Castillo, Miguel Alaminos, Manuel Toledano-Osorio, Manuel Toledano
OBJECTIVE: The objective of the study is characterization of novel calcium and zinc-loaded electrospun matrices to be used for periodontal regeneration. MATERIALS AND METHODS: A polymethylmetacrylate-based membrane was calcium or zinc loaded. Matrices were characterized morphologically by atomic force and scanning electron microscopy and mechanically probed by a nanoindenter. Biomimetic calcium phosphate precipitation on polymeric tissues was assessed. Cell viability tests were performed using oral mucosa fibroblasts...
February 18, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28208578/role-of-cortico-cancellous-heterologous-bone-in-human-periodontal-ligament-stem-cell-xeno-free-culture-studied-by-synchrotron-radiation-phase-contrast-microtomography
#8
Serena Mazzoni, Sara Mohammadi, Giuliana Tromba, Francesca Diomede, Adriano Piattelli, Oriana Trubiani, Alessandra Giuliani
This study was designed to quantitatively demonstrate via three-dimensional (3D) images, through the Synchrotron Radiation Phase-Contrast Microtomography (SR-PhC-MicroCT), the osteoinductive properties of a cortico-cancellous scaffold (Osteobiol Dual Block-DB) cultured with human Periodontal Ligament Stem Cells (hPDLSCs) in xeno-free media. In vitro cultures of hPDLSCs, obtained from alveolar crest and horizontal fibers of the periodontal ligament, were seeded onto DB scaffolds and cultured in xeno-free media for three weeks...
February 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28204808/bone-morphogenetic-protein-2-enhances-the-osteogenic-differentiation-capacity-of-mesenchymal-stromal-cells-derived-from-human-bone-marrow-and-umbilical-cord
#9
Kulisara Marupanthorn, Chairat Tantrawatpan, Pakpoom Kheolamai, Duangrat Tantikanlayaporn, Sirikul Manochantr
Mesenchymal stromal cells (MSCs) are multipotent cells that can give rise to different cell types of the mesodermal lineages. They are powerful sources for cell therapy in regenerative medicine as they can be isolated from various tissues, and can be expanded and induced to differentiate into multiple lineages. Recently, the umbilical cord has been suggested as an alternative source of MSCs. Although MSCs derived from the umbilical cord can be induced to differentiate into osteoblasts with a phenotypic similarity to that of bone marrow-derived MSCs, the differentiation ability is not consistent...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28171222/effect-of-long-term-cultivation-on-morphological-and-biological-characteristics-of-human-periodontal-ligament-stem-cells
#10
Michal Straka, Ida Kupcova, Ivan Varga, Andreas Nicodemou, Zuzana Varchulova Novakova, Lubos Danisovic
OBJECTIVES: Recently, it was demonstrated that human periodontal ligament stem cells have great potential for tissue engineering and regenerative medicine not limited to oro-maxillofacial region. They are easily accessible and they may be expanded under in vitro conditions. In this study we assessed the effect of long-term cultivation on the selected biological and morphological properties of human periodontal ligament stem cells. METHODS: Periodontal tissues were obtained from normal impacted third molars of healthy donors (n=5; aged 18-27 years), after obtaining informed consent...
October 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28127326/assessment-of-surface-markers-derived-from-human-periodontal-ligament-stem-cells-an-in-vitro-study
#11
Zainab Kadkhoda, Sahar Chokami Rafiei, Bahare Azizi, Ahad Khoshzaban
OBJECTIVES: Periodontal tissue regeneration for treatment of periodontal disease has not yet been mastered in tissue engineering. Stem cells, scaffold, and growth factors are the three main basic components of tissue engineering. Periodontal ligament (PDL) contains stem cells; however, the number, potency and features of these cells have not yet been understood. This study aimed to isolate and characterize the properties of PDL stem cells. MATERIALS AND METHODS: In this experimental study, samples were isolated from the PDL of extracted teeth of five patients and then stained immunohistochemically for detection of cell surface markers...
September 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28110067/poly-glycerol-sebacate-elastomer-supports-bone-regeneration-by-its-mechanical-properties-being-closer-to-osteoid-tissue-rather-than-to-mature-bone
#12
S H Zaky, K W Lee, J Gao, A Jensen, K Verdelis, Y Wang, A J Almarza, C Sfeir
Mechanical load influences bone structure and mass. Arguing the importance of load-transduction, we investigated the mechanisms inducing bone formation using an elastomeric substrate. We characterized Poly (glycerol sebacate) (PGS) in-vitro for its mechanical properties, compatibility with osteoprogenitor cells regarding adhesion, proliferation, differentiation under compression versus static cultures and in-vivo for the regeneration of a rabbit ulna critical size defect. The load-transducing properties of PGS were compared in-vitro to a stiffer poly lactic-co- glycolic-acid (PLA/PGA) scaffold of similar porosity and interconnectivity...
January 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28105339/analysis-of-multiple-types-of-human-cells-subsequent-to-bioprinting-with-electrospraying-technology
#13
Yu Xin, Gang Chai, Ting Zhang, Xiangsheng Wang, Miao Qu, Andy Tan, Melia Bogari, Ming Zhu, Li Lin, Qingxi Hu, Yuanyuan Liu, Yan Zhang
The aim of the present study was to investigate bioprinting with electrospraying technology using multiple types of human cell suspensions as bio-ink, in order to lay the initial foundations for the application of the bioprinting technology in tissue engineering. In the current study, six types of human cells were selected and cultured, including human fibroblasts, human adipose-derived stem cells (hADSCs), human periodontal ligament cells (HPDLCs), adult human retinal pigment epithelial cells (ARPE-19), human umbilical vascular endothelial cells (HUVECs) and human gastric epithelial cell line (GES-1)...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28042545/comparative-in-vitro-evaluation-of-human-dental-pulp-and-follicle-stem-cell-commitment
#14
Razieh Karamzadeh, Mohamadreza Baghaban Eslaminejad, Ali Sharifi-Zarchi
OBJECTIVE: Pulp and periodontal tissues are well-known sources of mesenchymal stem cells (MSCs) that provide a promising place in tissue engineering and regenerative medicine. The molecular mechanisms underlying commitment and differentiation of dental stem cells that originate from different dental tissues are not fully understood. In this study, we have compared the expression levels of pluripotency factors along with immunological and developmentally-related markers in the culture of human dental pulp stem cells (hDPSCs), human dental follicle stem cells (hDFSCs), and human embryonic stem cells (hESCs)...
2017: Cell Journal
https://www.readbyqxmd.com/read/28018706/application-of-platelet-rich-plasma-with-stem-cells-in-bone-and-periodontal-tissue-engineering
#15
REVIEW
Gabriela Fernandes, Shuying Yang
Presently, there is a high paucity of bone grafts in the United States and worldwide. Regenerating bone is of prime concern due to the current demand of bone grafts and the increasing number of diseases causing bone loss. Autogenous bone is the present gold standard of bone regeneration. However, disadvantages like donor site morbidity and its decreased availability limit its use. Even allografts and synthetic grafting materials have their own limitations. As certain specific stem cells can be directed to differentiate into an osteoblastic lineage in the presence of growth factors (GFs), it makes stem cells the ideal agents for bone regeneration...
2016: Bone Research
https://www.readbyqxmd.com/read/27936010/new-insights-on-the-composition-and-the-structure-of-the-acellular-extrinsic-fiber-cementum-by-raman-analysis
#16
Thomas Colard, Guillaume Falgayrac, Benoit Bertrand, Stephan Naji, Olivier Devos, Clara Balsack, Yann Delannoy, Guillaume Penel
Acellular extrinsic fiber cementum is a mineralized tissue that covers the cervical half of the tooth root surface. It contains mainly extrinsic or Sharpey's fibers that run perpendicular to the root surface to anchor the tooth via the periodontal ligament. Acellular cementum is continuously and slowly produced throughout life and exhibits an alternating bright and dark pattern under light microscopy. However, although a better understanding of the structural background of acellular cementum is relevant to many fields, such as cementochronology, periodontology and tissue engineering, acellular cementum remains rarely studied and poorly understood...
2016: PloS One
https://www.readbyqxmd.com/read/27924607/fabrication-and-characterization-of-decellularized-periodontal-ligament-cell-sheet-constructs
#17
Amro Farag, Cédryck Vaquette, Dietmar W Hutmacher, P Mark Bartold, Saso Ivanovski
Decellularized tissue-engineered constructs have the potential to promote regeneration by providing a biomimetic extracellular matrix that directs tissue-specific regeneration when implanted in situ. Recently, the use of cell sheets has shown promising results in promoting periodontal regeneration. Here, we describe the fabrication of decellularized periodontal cell sheets with intact extracellular matrix structural and biological properties. Melt electro spun polycaprolactone (PCL) scaffolds are used as a carrier for the inherently fragile cell sheets, to provide support during the processes of decellularization...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27915981/molecular-cellular-and-pharmaceutical-aspects-of-autologous-grafts-for-peri-implant-hard-and-soft-tissue-defects
#18
Jiayu Lu, Yongming Hao, Wei Zhao, Chengqi Lv, Derong Zou
The lack of supporting hard and soft tissues always prevents the rehabilitation with dental implants. Among various hard and soft tissue augmentation procedures, autologous grafts have been considered to be the gold standard. Autologous mesenchymal stem cells (MSCs) from bone marrow, dental tissue and adipose tissue have been described as promising alternatives for bone regeneration in the field of dental implantation. Mucosal cells, gingival fibroblasts and dental progenitor cells (DPS) can enhance peri-implant soft tissue augmentation and regenerate periodontal tissues around dental implants...
December 1, 2016: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/27890225/applications-of-mesenchymal-stem-cells-in-oral-and-craniofacial-regeneration
#19
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
#20
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
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