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Osteoinduction

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https://www.readbyqxmd.com/read/29457596/evaluation-of-osteoinductive-calcium-phosphate-ceramics-repairing-alveolar-cleft-defects-in-dog-model
#1
Jinfeng Yao, Haodong Chen, Qi Gao, Zhigang Liang
BACKGROUND: Alveolar cleft repair is an important step in the sequence of treatments for cleft lip and palate. Intrinsically osteoinductive materials have been the subject of research interest. OBJECTIVE: The aim of this study was to explore the use of osteoinductive biphasic calcium phosphate (BCP) ceramics to repair alveolar cleft defects in dogs. METHODS: We prepared two kinds of BCP ceramic with different physical characteristics: osteoinductive BCP (OBCP) and non-osteoinductive BCP (NBCP)...
2018: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/29456662/microrna-profiles-of-bmscs-induced-into-osteoblasts-with-osteoinductive-medium
#2
Zhixiong Yan, Yong Guo, Yang Wang, Yanan Li, Jiahui Wang
MicroRNA (miRNA) plays an important role in cell differentiation and functions as a regulator. Therefore, miRNA is important in the process of bone marrow mesenchymal stem cells (BMSCs) being induced into osteoblasts. In this study, mouse BMSCs were induced with osteoinductive medium, the indices related to osteoblastic differentiation were assayed, including alkaline phosphatase, the deposit of calcium and protein levels of osteocalcin. Using miRNA microarray and reverse transcription-quantitative polymerase chain reaction analyses, differentially expressed miRNAs in the cells, which were induced with osteoinductive medium, were selected and identified...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29449015/rapid-initiation-of-guided-bone-regeneration-driven-by-spatiotemporal-delivery-of-il-8-and-bmp-2-from-hierarchical-mbg-based-scaffold
#3
Dan Lin, Yanjun Chai, Yifan Ma, Bing Duan, Yuan Yuan, Changsheng Liu
Initiation of endogenous repair mechanisms, including key steps of stem cell recruitment and cartilage intermediate formation in endochondral ossification, is vital to regeneration of large bone defects. To biomimetically promote a rapid initiation and ensuing osteogenic stimulation, exogenous chemokine IL-8 and growth factor BMP-2 were orchestrated in a mesoporous bioactive glass (MBG)-based spatiotemporal delivery system, to achieve a rapid release of IL-8 followed by a long-term sustained release of BMP-2...
November 17, 2017: Biomaterials
https://www.readbyqxmd.com/read/29448144/nanocements-produced-from-mesoporous-bioactive-glass-nanoparticles
#4
Min Sil Kang, Na-Hyun Lee, Rajendra K Singh, Nandin Mandakhbayar, Roman A Perez, Jung-Hwan Lee, Hae-Won Kim
Biomedical cements are considered promising injectable materials for bone repair and regeneration. Calcium phosphate composition sized with tens of micrometers is currently one of the major powder forms. Here we report a unique cement form made from mesoporous bioactive glass nanoparticles (BGn). The nanopowder could harden in reaction with aqueous solution at powder-to-liquid ratios as low as 0.4-0.5 (vs. 2.0-3.0 for conventional calcium phosphate cement CPC). The cementation mechanism investigated from TEM, XRD, FT-IR, XPS, and NMR analyses was demonstrated to be the ionic (Si and Ca) dissolution and then reprecipitation to form Si-Ca-(P) based amorphous nano-islands that could network the particles...
February 3, 2018: Biomaterials
https://www.readbyqxmd.com/read/29447019/lysophosphatidic-acid-enhanced-the-osteogenic-and-angiogenic-capability-of-osteoblasts-via-lpa1-3-receptor
#5
Chen Xiaodan, Song Zijun, Chen Rui, Tan Shuyi, Huang Chunhuang, Liu Yanhui, Cheng Bin, Fu Qiang
Lysophosphatidic acid is a serum-derived growth factor that is involved in wound healing. Although in its infancy, a growing body of evidence has demonstrated that lysophosphatidic acid exerts a potentially significant role in regulating bone cell biology. However, previous studies mainly focused on the osteoinductive potential of lysophosphatidic acid, its effects on bone tissue vascularization, another essential element during bone regeneration, remains ill-defined so far. Here in this study, we examined the effects of lysophosphatidic acid on osteogenic differentiation as well as the angiogenesis-inducing capacity of pre-osteoblasts, a cell population that coordinates osteogenic and angiogenic processes in bone regenerating niche...
February 15, 2018: Connective Tissue Research
https://www.readbyqxmd.com/read/29445947/bone-graft-materials-for-posterolateral-fusion-made-simple-a-systematic-review
#6
REVIEW
Matthew T Morris, Sandip P Tarpada, Woojin Cho
BACKGROUND: Iliac crest has long been the gold standard for lumbar fusion, but concerns over donor site morbidity have led to a wide variety of bone graft substitutes. Despite prolific research, a general consensus is yet to be reached on bone graft materials that lead to optimal fusion. PURPOSE: The purpose of this review is to evaluate the current literature for bone graft material options that maximize fusion rate in posterolateral lumbar fusion surgery. DESIGN: Systematic Review...
February 14, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29442653/effect-of-titania-concentration-in-bioglass-tio%C3%A2-nanostructures-and-its-in-vitro-biological-property-assessment
#7
P Bargavi, S Chitra, D Durgalakshmi, P Rajashree, S Balakumar
Bioglass 45S5 (45% SiO2-24.5% NaO-24.5% CaO-6% P2O5) is a unique bioactive material, which is being used for bone and dental substitution. This system has been highly preferred for its osteoconductive and osteoinductive performance. Despite its attractive bioactivity, there are limitations in using this material for orthopedic and dental applications due to its poor processability and mechanical strength. To improve the load-sharing and stress distribution, TiO2 nanoparticles have been introduced into the nanoBioglass (nBG) by sol-gel method...
July 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29442285/diverse-effect-of-bmp-2-homodimer-on-mesenchymal-progenitors-of-different-origin
#8
Edit Hrubi, László Imre, Agnieszka Robaszkiewicz, László Virág, Farkas Kerényi, Krisztina Nagy, Gábor Varga, Attila Jenei, Csaba Hegedüs
Bone morphogenetic protein-2 (BMP-2), is a potential factor to enhance osseointegration of dental implants. However, the appropriate cellular system to investigate the osteogenic effect of BMP-2 in vitro in a standardized manner still needs to be defined. The aim of this study was to examine the effect of BMP-2 on the cell proliferation and osteogenic differentiation of human osteogenic progenitors of various origins: dental pulp stem cells (DPSC), human osteosarcoma cell line (Saos-2) and human embryonic palatal mesenchymal cell line (HEPM)...
February 13, 2018: Human Cell
https://www.readbyqxmd.com/read/29441709/multifunctional-cell-instructive-silk-bioactive-glass-composite-reinforced-scaffolds-toward-osteoinductive-proangiogenic-and-resorbable-bone-grafts
#9
Joseph Christakiran Moses, Samit Kumar Nandi, Biman B Mandal
The successful regeneration of large volume bone defects necessitates the use of proangiogenic and resorbable scaffolding matrix. Impaired and slow ingrowth of host vasculature within implanted grafts greatly compromises its effective osseointegration. By addressing this, it is demonstrated that the use of copper doped bioactive glass functionalizes silk microfiber reinforcements to improve the physicochemical and osteoinductive properties of two silk scaffolding matrices (mulberry Bombyx mori and non-mulberry Antheraea assama) employed in the study...
February 14, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29425718/effect-of-strontium-surface-functionalized-implants-on-early-and-late-osseointegration-a-histological-spectrometric-and-tomographic-evaluation
#10
Vincent Offermanns, Ole Z Andersen, Gregor Riede, Michael Sillassen, Christian S Jeppesen, Klaus P Almtoft, Heribert Talasz, Caroline Öhman-Magi, Bernd Lethaus, Rene Tolba, Frank Kloss, Morten Foss
Numerous in vivo, in vitro and clinical studies report on beneficial effects of strontium with respect to increased bone growth. Based on this knowledge the aim of this study was to evaluate early and late osseointegration stages of functionalized titanium implants showing sustained release of strontium (Sr) and further investigate its potential systemic effect. Strontium functionalized (Ti-Sr-O) and Grade 4 (Control) titanium implants were inserted in the femoral condyle of New Zealand White rabbits. The Ti-Sr-O coating was characterized using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectrometry (EDX) for structure, coating thickness and chemical composition...
February 6, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29423267/the-material-and-biological-characteristics-of-osteoinductive-calcium-phosphate-ceramics
#11
REVIEW
Zhurong Tang, Xiangfeng Li, Yanfei Tan, Hongsong Fan, Xingdong Zhang
The discovery of osteoinductivity of calcium phosphate (Ca-P) ceramics has set an enduring paradigm of conferring biological regenerative activity to materials with carefully designed structural characteristics. The unique phase composition and porous structural features of osteoinductive Ca-P ceramics allow it to interact with signaling molecules and extracellular matrices in the host system, creating a local environment conducive to new bone formation. Mounting evidence now indicate that the osteoinductive activity of Ca-P ceramics is linked to their physicochemical and three-dimensional structural properties...
February 2018: Regenerative Biomaterials
https://www.readbyqxmd.com/read/29415969/osteoblastic-differentiating-potential-of-dental-pulp-stem-cells-in-vitro-cultured-on-a-chemically-modified-microrough-titanium-surface
#12
Marianna De Colli, Milena Radunovic, Vincenzo L Zizzari, Viviana di Giacomo, Chiara Di Nisio, Adriano Piattelli, José L Calvo Guirado, Barbara Zavan, Amelia Cataldi, Susi Zara
Titanium surface modification is critical for dental implant success. Our aim was to determine surfaces influence on dental pulp stem cells (DPSCs) viability and differentiation. Implants were divided into sandblasted/acid-etched (control) and sandblasted/acid-etched coated with calcium and magnesium ions (CaMg), supplied as composite, (test). Proliferation was evaluated by MTT, differentiation checking osteoblastic gene expression, PGE2 secretion and matrix formation, inflammation by Interleukin 6 (IL-6) detection...
February 8, 2018: Dental Materials Journal
https://www.readbyqxmd.com/read/29415631/silk-biomaterials-mediated-mirna-functionalized-orthopedic-devices
#13
Eric James, Emily Van Doren, Chunmei Li, David L Kaplan
Silk-based bioresorbable medical devices, such as screws, plates and rods, have been under investigation due to their promising properties for orthopedic repairs. Options to functionalize these devices for enhanced control of bone regeneration would also exploit the compatible processing methods used to generate the devices. MicroRNAs are important regulators of bone maintenance and formation, and miRNA-based therapeutics have the potential to aid bone repair, utilizing a transient therapeutic approach with local bioactivity...
February 7, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29399740/comparing-the-effects-of-chitosan-scaffolds-containing-various-divalent-metal-phosphates-on-osteogenic-differentiation-of-stem-cells-from-human-exfoliated-deciduous-teeth
#14
Te-Yang Huang, Wen-Ta Su, Po-Hung Chen
Inducing the differentiation of stem cells from human exfoliated deciduous teeth (SHEDs) proceeds with low efficiency, which greatly limits clinical applications. Divalent metal elements play an important role in osteoinductivity for bone remodeling because they can simulate bone formation and decrease bone resorption. The purpose of this study was to investigate the effect of some divalent metal phosphates on osteogenic differentiation from human exfoliated deciduous teeth. These divalent metal ions can be gradually released from the scaffold into the culture medium and continually induce osteoblastic differentiation...
February 4, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29396921/a-thermoresponsive-citrate-based-macromolecule-for-bone-regenerative-engineering3
#15
Simona Morochnik, Yunxiao Zhu, Chongwen Duan, Michelle Cai, Russell R Reid, Tong-Chuan He, Jason Koh, Igal Szleifer, Guillermo A Ameer
There is a need in orthopaedic and craniomaxillofacial surgeries for materials that are easy to handle and apply to a surgical site, can fill and fully conform to the bone defect, and can promote the formation of new bone tissue. Thermoresponsive polymers that undergo liquid to gel transition at physiological temperature can potentially be used to meet these handling and shape-conforming requirements. However, there are no reports on their capacity to induce in vivo bone formation. The objective of this research was to investigate whether the functionalization of the thermoresponsive, antioxidant macromolecule poly(poly-ethyleneglycol citrate-co-N-isopropylacrylamide) (PPCN), with strontium, phosphate, and/or the cyclic RGD peptide would render it a hydrogel with osteoinductive properties...
February 2, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29396910/superior-bone-inducing-potential-of-rhbmp9-compared-to-rhbmp2
#16
Masako Fujioka-Kobayashi, Mustafa Abd El Raouf, Nikola Saulacic, Eizaburo Kobayashi, Yufeng Zhang, Benoit Schaller, Richard J Miron
Recombinant human bone morphogenic protein (rhBMP) 9 has recently been reported to have more osteopromotive potential in vitro when compared to rhBMP2. The aim of the present study was to investigate the bone-inducing potential of rhBMP2 and rhBMP9. We compared rhBMP2, rhBMP7 and rhBMP9 at 5 different concentrations and showed convincingly that rhBMP9 possesses much greater potential for osteoblast differentiation even at 20 times lower concentrations in vitro. We further show that Noggin, an inhibitor for rhBMP2-induced osteogenesis, did not alter rhBMP9-induced osteogenesis...
February 2, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29396550/il-6-potentiates-bmp-2-induced-osteogenesis-and-adipogenesis-via-two-different-bmpr1a-mediated-pathways
#17
Ru-Lin Huang, Yangbai Sun, Chia-Kang Ho, Kai Liu, Qi-Qun Tang, Yun Xie, Qingfeng Li
Recombinant human bone morphogenetic protein-2 (rhBMP-2) is widely used in the clinic for bone defect reconstruction because of its powerful osteoinductive capacity. However, commercially available rhBMP-2 requires a high concentration in the clinical setting for consistent bone formation. A high dose of rhBMP-2 induces a promising bone formation yield but also leads to inflammation-related events, deteriorated bone quality, and fatty tissue formation. We hypothesize that the seemingly contradictory phenomenon of coformation of new bone and excessive adipose tissue in rhBMP-2-induced bone voids may be associated with interleukin-6 (IL-6), which is significantly elevated after application of rhBMP-2/absorbable collagen sponge (rhBMP-2/ACS)...
February 2, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29386790/use-of-bovine-colostrum-in-periapical-defects-following-surgical-endodontics-two-case-reports
#18
Chandrasekhar Veeramachaneni, Ch Gayathri, Abhijeet K Kakani, R Mohini
Periapical lesions are the most common pathological conditions involving teeth which often require surgical intervention. To achieve optimal healing both clinically and radiographically, bone grafts and barrier membranes have been used to fill the periapical defect after degranulation of the lesion. Colostrum is one of the new materials, which has osteoinductive or regenerative potential. The present case reports describe the use of bovine colostrum in the treatment of periapical inflammatory lesion with a follow-up period of 12 months...
September 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29383695/bioactive-glass-induced-osteogenic-differentiation-of-human-adipose-stem-cells-is-dependent-on-cell-attachment-mechanism-and-mitogen-activated-protein-kinases
#19
M Ojansivu, L Hyväri, M Kellomäki, L Hupa, S Vanhatupa, S Miettinen
Bioactive glasses (BaGs) are widely utilised in bone tissue engineering (TE) but the molecular response of cells to BaGs is poorly understood. To elucidate the mechanisms of cell attachment to BaGs and BaG-induced early osteogenic differentiation, we cultured human adipose stem cells (hASCs) on discs of two silica-based BaGs S53P4 (23.0 Na2O - 20.0 CaO - 4.0 P2O5 - 53.0 SiO2 (wt-%)) and 1-06 (5.9 Na2O - 12.0 K2O - 5.3 MgO - 22.6 CaO - 4.0 P2O5 - 0.2 B2O3 - 50.0 SiO2) in the absence of osteogenic supplements...
January 30, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29383340/multifunctional-ha-cu-nano-coatings-on-titanium-using-ppy-coordination-and-doping-via-pulse-electrochemical-polymerization
#20
Yingbo Wang, Ling Yan, Ruoyu Cheng, Mirigul Muhtar, Xinxin Shan, Yi Xiang, Wenguo Cui
The incorporation of hydroxyapatite nanoparticles onto the surface of titanium is an effective method to improve its osteoinductive ability. However, there are still issues with the hydroxyapatite nanoparticle coatings fabricated using current methods, such as particle aggregation and unsatisfactory binding ability with the matrix, in addition to the difficulties in the multi-functionalization of antibacterial, anti-wear and bioinductive ability. In the present study, we propose a strategy to fabricate a refined hydroxyapatite nanoparticles/copper nanoparticles co-deposition titanium matrix by the mediation of pulse electrochemical polymerized pyrrole through its coordination and doping of cations and anions...
January 31, 2018: Biomaterials Science
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