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https://www.readbyqxmd.com/read/28426699/anti-il-20-monoclonal-antibody-inhibited-inflammation-and-protected-against-cartilage-destruction-in-murine-models-of-osteoarthritis
#1
Yu-Hsiang Hsu, Ya-Yu Yang, Man-Hsiang Huwang, Yun-Han Weng, I-Ming Jou, Po-Tin Wu, Tain-Yu Lin, Li-Wha Wu, Ming-Shi Chang
Osteoarthritis (OA) is a degenerative joint disease characterized by progressive destruction of articular cartilage. Interleukin (IL)-20 is a proinflammatory cytokine involved in the pathogenesis of rheumatoid arthritis. We investigated the role of IL-20 in OA and evaluated whether anti-IL-20 antibody (7E) treatment attenuates disease severity in murine models of surgery-induced OA. Immunohistochemical staining was used to detect IL-20 and its receptors expression in synovial tissue and cartilage from OA patients, and in OA synovial fibroblasts (OASFs) and chondrocytes (OACCs) from rodents with surgery-induced OA...
2017: PloS One
https://www.readbyqxmd.com/read/28419987/extracellular-matrix-mediates-bmp-2-in-a-model-of-temporomandibular-joint-osteoarthritis
#2
Maya Shirakura, Vardit Kram, Jennifer Robinson, Sheena Sikka, Tina M Kilts, Sunil Wadhwa, Marian F Young
Temporomandibular joint (TMJ) osteoarthritis (OA) is a complex disease that affects both cartilage and subchondral bone. It is accompanied by loss of extracellular matrix (ECM) and may be controlled by bone morphogenetic protein-2 (BMP-2). We analyzed the effect of BMP-2 in both cartilage and subchondral bone in a TMJ-OA animal model that is deficient in biglycan (Bgn) and fibromodulin (Fmod) (Bgn-/-Fmod-/-). Whole mandibles were dissected from 3-week-old wild-type (WT) and Bgn-/-Fmod-/- mice and incubated with and without 250 µg/mL BMP-2 for 2 days using an explant culture system...
April 19, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28419693/ag-loaded-mgsrfe-layered-double-hydroxide-chitosan-composite-scaffold-with-enhanced-osteogenic-and-antibacterial-property-for-bone-engineering-tissue
#3
Dandan Cao, Zhengliang Xu, Yixuan Chen, Qinfei Ke, Changqing Zhang, Yaping Guo
Bone tissue engineering scaffolds for the reconstruction of large bone defects should simultaneously promote osteogenic differentiation and avoid postoperative infection. Herein, we develop, for the first time, Ag-loaded MgSrFe-layered double hydroxide/chitosan (Ag-MgSrFe/CS) composite scaffold. This scaffold exhibits three-dimensional interconnected macroporous structure with a pore size of 100-300 μm. The layered double hydroxide nanoplates in the Ag-MgSrFe/CS show lateral sizes of 200-400 nm and thicknesses of ∼50 nm, and the Ag nanoparticles with particle sizes of ∼20 nm are uniformly dispersed on the scaffold surfaces...
April 17, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28418785/metabolomics-analysis-of-the-osteogenic-differentiation-of-umbilical-cord-blood-mesenchymal-stem-cells-reveals-differential-sensitivity-to-osteogenic-agents
#4
Michail E Klontzas, Spyros I Vernardis, Manolis Heliotis, Eleftherios Tsiridis, Athanasios Mantalaris
Mesenchymal stem cells (MSCs) of fetal origin, such as umbilical cord blood MSCs (UCB MSCs), have emerged as a promising cell source for musculoskeletal tissue regeneration because of their higher proliferation potential, lack of donor site morbidity, and their off-the-shelf potential. MSCs differentiated toward the osteogenic lineage exhibit a specific metabolic phenotype characterized by reliance to oxidative phosphorylation for energy production and reduced glycolytic rates. Currently, limited information exists on the metabolic transitions at different stages of the osteogenic process after osteoinduction with different agents...
April 18, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28415442/small-intestinal-submucosa-a-potential-osteoconductive-and-osteoinductive-biomaterial-for-bone-tissue-engineering
#5
Mei Li, Chi Zhang, Mengjie Cheng, Qiaoqiao Gu, Jiyuan Zhao
SIS is an acellular, naturally occurring collagenous extracellular matrix (ECM) material with various bioactive factors, which broadly applied in tissue engineering in clinic. Several studies have applied SIS in bone tissue engineering to enhance bone regeneration in animal models. However, the mechanism was rarely investigated. The aim of the current study was to investigate the osteoconductivity and osteoinductivity of SIS scaffold to bone regeneration systematically and the potential mechanism. Our results showed that SIS scaffold with excellent biocompatibility was beneficial for cell attachment, proliferation, migration and osteogenic differentiation of various cells contributing to bone repair...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28402171/tethered-bone-morphogenetic-protein-2-onto-sulfonated-polyrotaxane-based-surfaces-promotes-osteogenic-differentiation-of-mc3t3-e1-cells
#6
Yoshinori Arisaka, Nobuhiko Yui
Sulfonated-polyrotaxane (PRX)-coated surfaces with tethered bone morphogenetic protein-2 (BMP-2) were designed for inducing osteogenic differentiation of MC3T3-E1 cells (preosteoblasts). Sulfonated-PRX triblock copolymers composed of sulfopropyl ether-modified α-cyclodextrins (α-CDs) threaded onto a poly(ethylene glycol) (PEG) chain as a PRX segment and poly(benzyl methacrylate) (PBzMA) at both terminals of the PEG as anchoring segments were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization...
April 20, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28401685/characterization-of-new-bone-morphogenetic-protein-bmp-2-regulatory-alleles
#7
Tapan A Shah, Youhua Zhu, Nadia N Shaikh, Marie A Harris, Stephen E Harris, Melissa B Rogers
Bone morphogenetic protein 2 (BMP2, HGNC:1069, GeneID: 650) is a classical morphogen; a molecule that acts at a distance and whose concentration influences cell proliferation, differentiation, and apoptosis. Key events requiring precise Bmp2 regulation include heart specification and morphogenesis and neural development. In mesenchymal cells, the concentration of BMP2 influences myogenesis, adipogenesis, chondrogenesis, and osteogenesis. Because the amount, timing, and location of BMP2 synthesis influence pattern formation and organogenesis, the mechanisms that regulate Bmp2 are crucial...
April 12, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28401593/low-dose-bmp-2-and-msc-dual-delivery-onto-coral-scaffold-for-critical-size-bone-defect-regeneration-in-sheep
#8
Adeline Decambron, Alexandre Fournet, Morad Bensidhoum, Mathieu Manassero, Frédéric Sailhan, Hervé Petite, Delphine Logeart-Avramoglou, Véronique Viateau
Tissue-engineered constructs (TECs) combining resorbable calcium-based scaffolds and mesenchymal stem cells (MSCs) have the capability to regenerate large bone defects. Inconsistent results have, however, been observed, with a lack of osteoinductivity as a possible cause of failure. This study aimed to evaluate the impact of the addition of low-dose bone morphogenetic protein-2 (BMP-2) to MSC-coral-TECs on the healing of clinically-relevant segmental bone defects in sheep. Coral granules were either seeded with autologous MSCs (bone marrow-derived) or loaded with BMP-2...
April 12, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28401163/collagen-sponge-functionalized-with-chimeric-anti-bmp-2-monoclonal-antibody-mediates-repair-of-critical-size-mandibular-continuity-defects-in-a-nonhuman-primate-model
#9
Yilin Xie, Yingying Su, Seiko Min, Jianxia Tang, Bee Tin Goh, Leonardo Saigo, Sahar Ansari, Alireza Moshaverinia, Chunmei Zhang, Jinsong Wang, Yi Liu, Arash Khojasteh, Homayoun H Zadeh, Songlin Wang
Antibody-mediated osseous regeneration (AMOR) has been introduced by our research group as a tissue engineering approach to capture of endogenous growth factors through the application of specific monoclonal antibodies (mAbs) immobilized on a scaffold. Specifically, anti-Bone Morphogenetic Protein- (BMP-) 2 mAbs have been demonstrated to be efficacious in mediating bone repair in a number of bone defects. The present study sought to investigate the application of AMOR for repair of mandibular continuity defect in nonhuman primates...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28397529/controlling-abnormal-joint-movement-inhibits-response-of-osteophyte-formation
#10
Kenji Murata, Takanori Kokubun, Yuri Morishita, Katsuya Onitsuka, Shuhei Fujiwara, Aya Nakajima, Tsutomu Fujino, Kiyomi Takayanagi, Naohiko Kanemura
Objective Osteoarthritis (OA) is induced by accumulated mechanical stress to joints; however, little has been reported regarding the cause among detailed mechanical stress on cartilage degeneration. This study investigated the influence of the control of abnormal joint movement induced by anterior cruciate ligament (ACL) injury in the articular cartilage. Design The animals were divided into 3 experimental groups: CAJM group ( n = 22: controlling abnormal joint movement), ACL-T group ( n = 22: ACL transection or knee anterior instability increased), and INTACT group ( n = 12: no surgery)...
April 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28396518/rapamycin-efficiently-promotes-cardiac-differentiation-of-mouse-embryonic-stem-cells
#11
Qin Lu, Zhuqing Jia, Yang Wang, Weiping Wang, Zhe Yang, Tao Li, Yuyao Tian, Ping Chen, Kangtao Ma, Yinan Liu, Chunyan Zhou
To investigate the effects of the rapamycin on cardiac differentiation, murine ESCs was induced to cardiomyocytes by 10(-4) M ascorbic acid (AA), 20 nM rapamycin alone or 0.1‰ solvent dimethyl sulfoxide (DMSO). We found that rapamycin alone was insufficient to initiate cardiomyogenesis. Then the ESCs was treated with AA and rapamycin (20 nM) or AA and DMSO (0.1‰) as a control. Compared with control, mESCs treated with rapamycin (20 nM) and AA yielded a significantly higher percentage of cardiomyocytes, as confirmed by percentage of beating EBs, the immunofluorescence and FACS analysis...
April 10, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28389839/p15-peptide-stimulates-chondrogenic-commitment-and-endochondral-ossification
#12
Jun Zhang, Peter Eisenhauer, Ozҫan Kaya, Alexander R Vaccaro, Carol Diallo, Andrzej Fertala, Theresa A Freeman
PURPOSE: The synthetic 15 amino acid biomimetic peptide sequence (P15) derived from a region of the alpha (α)-1 chain of collagen I, has been shown to promote α2 integrin activation and enhance intramembranous ossification. In this study, we ask if the P15 peptide also enhances bone formation through endochondral ossification, and determine if direct binding of α2 integrin with P15 mediates integrin activation. METHODS: Mesenchymal cells (C3H10T1/2) were cultured in chondrogenic media and the expression of chondrogenic markers and integrin activation was determined by Western blot and fluorescent immunohistochemistry...
April 8, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28389833/immunohistochemistry-evaluation-of-bmp-2-with-%C3%AE-tricalcium-phosphate-matrix-polylactic-and-polyglycolic-acid-gel-and-calcium-phosphate-cement-in-rats
#13
Júlio César da Silva de Oliveira, Eloá Rodrigues Luvizuto, Celso Koogi Sonoda, Roberta Okamoto, Idelmo Rangel Garcia-Junior
PURPOSE: The installation of implants has become a routine procedure in the clinic. However, it takes time and adequate bone thickness, and for that, tissue engineering has made efforts to develop substitutes for autografts, in view of certain disadvantages of this material. The decision to choose the most suitable graft material for each case is an important step in the success of bone reconstruction. This study was to verify, by means of immunohistochemical study, that the addition of bone morphogenetic protein had some influence on biomaterials commercially available, taking into account the formation of mineralized tissue, bone replacement, and the amount of degradation of biomaterials...
April 8, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28380671/bicomponent-fibrous-scaffolds-made-through-dual-source-dual-power-electrospinning-dual-delivery-of-rhbmp-2-and-ca-p-nanoparticles-and-enhanced-biological-performances
#14
Chong Wang, William Weijia Lu, Min Wang
Electrospun scaffolds incorporated with both calcium phosphates (Ca-P) and bone morphogenetic protein-2 (BMP-2) have been used for bone tissue regeneration. However, in most cases BMP-2 and Ca-P were simply mixed and loaded in a monolithic structure, risking low BMP-2 loading level, reduced BMP-2 biological activity, uncontrolled BMP-2 release and inhomogeneous Ca-P distribution. In this investigation, novel bicomponent scaffolds having evenly distributed rhBMP-2-containing fibers and Ca-P nanoparticle-containing fibers were made using an established dual-source dual-power electrospinning technique with the assistance of emulsion electrospinning and blend electrospinning...
April 5, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28378706/immunomodulation-effect-of-hierarchical-macropore-nano-surface-on-osteogenesis-and-angiogenesis
#15
Houhua Pan, Youtao Xie, Zequan Zhang, Kai Li, Dandan Hu, Xuebin Zheng, Tingting Tang
Immune systems play pivotal roles in determining the in vivo osseointegration of bone implants. While numerous evidences have shown that hierarchical implant surface can exhibit excellent osteogenic ability, however, its immune response has not been well elucidated, which will preclude the accurate knowledge of its osseointegration performance. In this study, the immunomodulatory property of the hierarchical macropore/nano surface as well as the detailed mechanism has been investigated. Macrophages were found switching to M2 phenotype on the hierarchical surface, and meanwhile decreased levels of inflammatory genes expression as well as increased expression of anti-inflammatory genes were endowed, which were probably regulated by the decisive role of cytoskeleton tension induced by specific cell shape...
April 5, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28377507/an-epigenetic-regulatory-loop-controls-pro-osteogenic-activation-by-tgf-%C3%AE-1-or-bone-morphogenetic-protein-2-in-human-aortic-valve-interstitial-cells
#16
Rui Song, David A Fullerton, Lihua Ao, Ke-Seng Zhao, Xianzhong Meng
Calcific aortic valve disease (CAVD) is common in the elderly population, but pharmacological interventions for managing valvular calcification are unavailable. Transforming growth factor beta 1 (TGF-β1) and bone morphogenetic protein 2 (BMP-2) induce pro-osteogenic activation of human aortic valve interstitial cells (AVICs) that play an important role in valvular calcification. However, the molecular mechanism underlying pro-osteogenic activation in AVICs is incompletely understood. Here, we investigated an epigenetic regulatory mechanism in human AVIC pro-osteogenic activation induced by TGF-β1 and BMP-2...
April 4, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28370021/roles-of-neurotrophins-in-skeletal-tissue-formation-and-healing
#17
REVIEW
Yu-Wen Su, Xin-Fu Zhou, Bruce K Foster, Brian L Grills, Jiake Xu, Cory J Xian
Neurotrophins and their receptors are key molecules that are known to be critical in regulating nervous system development and maintenance and have been recognized to be also involved in regulating tissue formation and healing in skeletal tissues. Studies have shown that neurotrophins and their receptors are widely expressed in skeletal tissues, implicated in chondrogenesis, osteoblastogenesis and osteoclastogenesis, and are also involved in regulating tissue formation and healing events in skeletal tissue...
March 30, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28367006/bmp-2-induced-bone-formation-and-neural-inflammation
#18
REVIEW
Vi Nguyen, Carolyn A Meyers, Noah Yan, Shailesh Agarwal, Benjamin Levi, Aaron W James
Bone morphogenetic protein-2 (BMP-2), a potent osteoinductive cytokine from the transforming growth factor beta (TGF-β) family, is currently the most commonly used protein-based bone graft substitute. Although clinical use of BMP-2 has significantly increased in recent years, its prominence has also highlighted various adverse events, including induction of inflammation. This review will elucidate the relationship between BMP-2 and inflammation, with an emphasis on peripheral nerve inflammation and its sequelae...
June 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28366235/zinc-bioglasses-regulate-mineralization-in-human-dental-pulp-stem-cells
#19
Mei Huang, Robert G Hill, Simon C F Rawlinson
OBJECTIVE: A promising strategy in regenerative endodontics is the combination of human dental pulp stem cells (hDPSCs) with an appropriate biomaterial substrate. The effects of zinc and zinc containing bioactive glasses (ZnBGs) on hDPSCs have been characterized in this study. METHODS: ZnBGs were designed and produced. Then the odontogenic differentiation and mineralization potential of hDPSCs upon ZnBGs treatment were investigated. RESULTS: Free Zn ions (0-5ppm) enhanced proliferation and alkaline phosphatase (ALP) activity of hDPSCs...
March 30, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28364100/-expression-of-matrix-gla-protein-and-bone-morphogenetic-protein-2-in-renal-papillary-tissues-in-patients-with-calcium-oxalate-kidney-stones
#20
Min Zhu, Feng Zeng, Yu Cui, Xifeng Liu, Hequn Chen
To compare expression levels of matrix Gla protein (MGP) and bone morphogenetic protein 2 (BMP-2) in Randall's plaque of renal papillary tissues in patients with calcium oxalate kidney stones and the underlying mechanism for stone formation.
 Methods: A total of 30 samples of Randall's plaque in renal papillary tissues from patients with calcium oxalate kidney stones were collected from the Department of Urology of Xiangya Hospital of Central South University from April, 2015 to December, 2015 and served as an experimental group...
March 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
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