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https://www.readbyqxmd.com/read/28303752/bone-morphogenetic-proteins-and-dickkopf-1-in-ankylosing-spondylitis
#1
H-T Liao, Y-F Lin, C-Y Tsai, T-C Chou
OBJECTIVES: To determine bone morphogenetic proteins (BMPs) and Dickkopf homologue-1 (Dkk-1) levels in ankylosing spondylitis (AS). METHOD: Serum BMPs and Dkk-1 were measured in 72 AS patients and 30 healthy controls. For AS patients, we recorded the demographic data, disease activity, functional index, and global assessment with questionnaires, and image changes with roentgenography. We also measured human leucocyte antigen-B27 and systemic inflammatory reactants...
March 17, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28236164/evaluation-of-the-effects-of-the-combination-of-autologous-mesenchymal-stem-cells-and-platelet-rich-plasma-on-structural-bone-allograft-healing
#2
Chang-Goo Park, Min Wook Joo, Jinyoung Jeong, Yong-Koo Kang, Da-Reum Lee
In this study, we evaluated the efficacy of the combination of autologous mesenchymal stem cells (MSCs) and platelet-rich plasma (PRP) for enhancing structural allogenic bone graft healing in rabbits. For these experiments segmental bone defects (1.5-2 cm) were generated on femoral diaphysis of New Zealand white rabbits and reconstructed via structural allogenic bone grafting and additional intramedullary nail fixation. The structural allografts were subsequently wrapped with Gelfoam containing autologous MSCs and PRP, or PRP alone (control)...
February 24, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28202676/harnessing-the-bmp-signaling-pathway-to-control-the-formation-of-cancer-stem-cells-by-effects-on-epithelial-to-mesenchymal-transition
#3
REVIEW
Ashish Bosukonda, William D Carlson
Cancer stem cells (CSCs) persist in tumors as a distinct population and may be causative in metastasis and relapse. CSC-rich tumors are associated with higher rates of metastasis and poor patient prognosis. Targeting CSCs therapeutically is challenging, since they seem to be resistant to standard chemotherapy. We have shown that a novel peptide agonist of bone morphogenetic protein (BMP) signaling, P123, is capable of inhibiting the growth of primary tumor cells by interacting with type I receptors selectively [activin receptor-like kinase 2 (ALK2) and ALK3, but not ALK6] and type II BMP receptors, activating SMAD 1/5/8 signaling and controlling the cell cycle pathway...
February 8, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28186649/bone-morphogenetic-protein-7-bmp-7-augments-insulin-sensitivity-in-mice-with-type-ii-diabetes-mellitus-by-potentiating-pi3k-akt-pathway
#4
Tandrika Chattopadhyay, Rajiv Ranjan Singh, Sarika Gupta, Avadhesha Surolia
A direct link between development of insulin resistance and the presence of chronic inflammation, in case of obesity exists, with cytokines playing an important role in glucose metabolism. Members of TGF-β superfamily, including bone morphogenetic proteins (BMPs), have been shown to be involved in islet morphogenesis, establishment of β-cell mass and adipose cell fate determination. Here, we demonstrate a novel and direct role of BMP-4 and -7 in the regulation of glucose homeostasis and insulin resistance...
February 10, 2017: BioFactors
https://www.readbyqxmd.com/read/28152139/bone-morphogenetic-protein-7-suppresses-tgf%C3%AE-2-induced-epithelial-mesenchymal-transition-in-the-lens-implications-for-cataract-prevention
#5
Daisy Y Shu, Magdalena C Wojciechowski, Frank J Lovicu
Purpose: Epithelial-mesenchymal transition (EMT) of lens epithelial cells (LECs) is a key pathologic mechanism underlying cataract. Two members of the transforming growth factor-β (TGFβ) superfamily, TGFβ and bone morphogenetic protein-7 (BMP-7) have functionally distinct roles in EMT. While TGFβ is a potent inducer of EMT, BMP-7 counteracts the fibrogenic activity of TGFβ. We examine the modulating effect of BMP-7 on TGFβ-induced EMT in LECs. Methods: Rat lens epithelial explants were treated exogenously with TGFβ2 alone or in combination with BMP-7 for up to 5 days...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28144577/heterotopic-ossification-after-the-use-of-recombinant-human-bone-morphogenetic-protein-7
#6
Marianthi Papanagiotou, Zoe H Dailiana, Theophilos Karachalios, Sokratis Varitimidis, Michael Hantes, Georgios Dimakopoulos, Marianna Vlychou, Konstantinos N Malizos
AIM: To present the incidence of heterotopic ossification after the use of recombinant human bone morphogenetic protein-7 (rhBMP-7) for the treatment of nonunions. METHODS: Bone morphogenetic proteins (BMPs) promote bone formation by auto-induction. Recombinant human BMP-7 in combination with bone grafts was used in 84 patients for the treatment of long bone nonunions. All patients were evaluated radiographicaly for the development of heterotopic ossification during the standard assessment for the nonunion healing...
January 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28102712/bone-morphogenetic-protein-2-and-7-mediate-the-anabolic-function-of-nucleus-pulposus-cells-with-discrete-mechanisms
#7
Victor Yl Leung, Lixiong Zhou, Wai-Kit Tam, Yi Sun, Fengjuan Lv, Guangqian Zhou, Kenneth Mc Cheung
Bone morphogenetic proteins (BMPs) play roles in promoting cell anabolism, especially extracellular matrix production. The difference between BMP members in their capacity to modulate intervertebral disc cell activity is yet to be defined. BMP-7/OP-1 has been shown to retard disc degeneration. We compared the activity of BMP-7 with BMP-2 on nucleus pulposus (NP) cell phenotype and function, and investigated how they differentially affect the gene expression profiles of signaling cascade components in human NP cells under degenerative states...
January 19, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28087378/new-scaffolds-encapsulating-tgf-%C3%AE-3-bmp-7-combinations-driving-strong-chondrogenic-differentiation
#8
Jose Crecente-Campo, Erea Borrajo, Anxo Vidal, Marcos Garcia-Fuentes
The regeneration of articular cartilage remains an unresolved question despite the current access to a variety of tissue scaffolds activated with growth factors relevant to this application. Further advances might result from combining more than one of these factors; here, we propose a scaffold composition optimized for the dual delivery of BMP-7 and TGF-β3, two proteins with described chondrogenic activity. First, we tested in a mesenchymal stem cell micromass culture with TGF-β3 whether the exposure to microspheres loaded with BMP-7 would improve cartilage formation...
January 10, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28062213/anti-fibrotic-effects-of-bone-morphogenetic-protein-7-modified-bone-marrow-mesenchymal-stem-cells-on-silica-induced-pulmonary-fibrosis
#9
Xiaoli Li, Guoliang An, Yan Wang, Di Liang, Zhonghui Zhu, Ximeng Lian, Piye Niu, Caixia Guo, Lin Tian
Silicosis is an occupational lung disease caused by exposure to small particles of crystalline silica, which ultimately results in diffuse pulmonary fibrosis. Evidence indicates an anti-fibrotic role of bone morphogenetic protein-7 (BMP-7) and bone marrow mesenchymal stem cells (BMSCs) in lung diseases. Therefore, strategies incorporating genetic engineering and stem cell biology might have a tremendous potential to treat critical injuries and diseases. Therefore, we modified BMSCs to overexpress the BMP-7 gene (BMP-7-BMSCs) by lentivirus transduction, and then evaluated whether fibrotic processes were inhibited by these cells in vivo...
January 4, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28054585/osseous-differentiation-of-human-fat-tissue-grafts-from-tissue-engineering-to-tissue-differentiation
#10
Maryna Bondarava, Chiara Cattaneo, Bin Ren, Wolfgang E Thasler, Volkmar Jansson, Peter E Müller, Oliver B Betz
Conventional bone tissue engineering approaches require isolation and in vitro propagation of autologous cells, followed by seeding on a variety of scaffolds. Those protracted procedures impede the clinical applications. Here we report the transdifferentiation of human fat tissue fragments retrieved from subcutaneous fat into tissue with bone characteristics in vitro without prior cell isolation and propagation. 3D collagen-I cultures of human fat tissue were cultivated either in growth medium or in osteogenic medium (OM) with or without addition of Bone Morphogenetic Proteins (BMPs) BMP-2, BMP-7 or BMP-9...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28040085/upper-limb-non-unions-treated-with-bmp-7-efficacy-and-clinical-results
#11
Rahul Singh, Sabri Bleibleh, Nikolaos K Kanakaris, Peter V Giannoudis
The management of upper limb non-unions can be challenging and often with unpredictable outcomes. In this study we present our experience with the use of BMP-7 in the treatment of upper limb non-unions. Between 2004 and 2011 all consecutive patients who were treated with BMP-7 were followed up prospectively until fracture union. Fracture union was assessed with regular radiological and clinical assessment. At the final follow up clinical assessment included the short Disabilities of the Arm, Shoulder and Hand (DASH) score...
December 2016: Injury
https://www.readbyqxmd.com/read/28032906/3-dimensional-functionalized-polycaprolactone-hyaluronic-acid-hydrogel-constructs-for-bone-tissue-engineering
#12
Stephen M Hamlet, Cedryck Vaquette, Amit Shah, Dietmar W Hutmacher, Saso Ivanovski
AIM: Alveolar bone regeneration remains a significant clinical challenge in periodontology and dental implantology. This study assessed the mineralized tissue forming potential of 3-D printed medical grade polycaprolactone (mPCL) constructs containing osteoblasts (OB) encapsulated in a hyaluronic acid (HA)-hydrogel incorporating bone morphogenetic protein-7 (BMP-7). MATERIALS AND METHODS: HA-hydrogels containing human OB ± BMP-7 were prepared. Cell viability, osteogenic gene expression, mineralized tissue formation and BMP-7 release in vitro, were assessed by fluorescence staining, RT-PCR, histological/μ-CT examination and ELISA respectively...
December 29, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28025385/prognostic-value-of-bone-and-vascular-derived-molecular-biomarkers-in-hemodialysis-and-renal-transplant-patients-a-systematic-review-and-meta-analysis
#13
Gernot Pichler, Maria C Haller, Alexander Kainz, Myles Wolf, Josep Redon, Rainer Oberbauer
BACKGROUND: Patients undergoing hemodialysis and kidney graft recipients are high-risk populations for cardiovascular and all-cause mortality. Fibroblast growth factor 23 (FGF23), osteoprotegerin (OPG), RANK ligand, osteopontin (OPN), Klotho protein and bone morphogenetic protein-7 (BMP-7) are bone- and vascular-derived molecular biomarkers that have been shown to be associated with cardiovascular surrogate end points; however, currently available data on the prognostic value of these biomarkers is inconsistent...
December 26, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28009419/mesenchymal-stem-cells-from-reaming-material-possess-high-osteogenic-potential-and-react-sensitively-to-bone-morphogenetic-protein-7
#14
COMPARATIVE STUDY
Melanie Hoellig, Fabian Westhauser, Kira Kornienko, Kai Xiao, Gerhard Schmidmaier, Arash Moghaddam
BACKGROUND: Femoral material harvested using the Reamer-Irrigator-Aspirator (RIA) system is an alternative source for autogenous bone material in the treatment of non-unions, especially in combination with bone morphogenetic proteins (BMP). So far, there is no in vivo evidence of BMP-7 interacting with mesenchymal stem cells (MSCs) from RIA material (RIA-MSCs) and iliac crest autogenous bone (BMSCs). The aim of this study was to compare their osteogenic potential when stimulated with BMP-7 in vivo...
January 26, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/27998031/could-the-application-of-bioactive-molecules-improve-vital-pulp-therapy-success-a-systematic-review
#15
REVIEW
Wellington Luiz de Oliveira da Rosa, Tiago Machado da Silva, Flávio Fernando Demarco, Evandro Piva, Adriana Fernandes da Silva
This study aimed to systematically review the literature of animal studies to evaluate whether bioactive dentin proteins could improve vital pulp therapy success. The review is reported in accordance with the PRISMA Statement. Two reviewers independently conducted a literature search of seven databases: PubMed (Medline), Lilacs, IBECS, BBO, Web of Science, Scopus, and SciELO. Animal experiments in which bioactive dentin proteins were applied directly or indirectly to the pulp tissue were included. Data regarding the characteristics of the proteins evaluated, the delivery systems used and the main findings from each study were tabulated to assess the outcomes of interest (tertiary dentin formation, inflammatory response, intratubular mineralization)...
March 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27997722/pitavastatin-suppresses-hyperglycemia-induced-podocyte-injury-via-bone-morphogenetic-protein-7-preservation
#16
Makoto Ohigashi, Miyuki Kobara, Tamotsu Takahashi, Hiroe Toba, Takehiko Wada, Tetsuo Nakata
BACKGROUND: Podocytes form the essential components of the glomerular filtration barrier and play a critical role in diabetic nephropathy. Recent evidence suggests that HMG-CoA reductase inhibitors (statins) exert renoprotective effects. We investigated whether pitavastatin directly suppresses hyperglycemia-induced podocyte injury using cultured podocytes and, if so, the mechanism of the beneficial effects. METHODS AND RESULTS: Cultured podocytes were exposed to media containing normal (NG; 5 mmol/L) or high (HG; 25 mmol/L) glucose for one week...
December 20, 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27882147/molecular-profiling-of-a-simple-rat-model-of-open-tibial-fractures-with-hematoma-and-periosteum-disruption
#17
Jose Rafael Villafan-Bernal, Lorenzo Franco-De La Torre, Ana Soledad Sandoval-Rodriguez, Juan Armendariz-Borunda, Juan Luis Alcala-Zermeno, Jose Alfonso Cruz-Ramos, Gabriela Lopez-Armas, Blanca Estela Ramirez-Bastidas, Gracia Viviana González-Enríquez, Emerson Armando Collazo-Guzman, Raigam Jafet Martinez-Portilla, Sergio Sánchez-Enríquez
Bone fractures are a worldwide public health concern. Therefore, improving understanding of the bone healing process at a molecular level, which could lead to the discovery of potential therapeutic targets, is important. In the present study, a model of open tibial fractures with hematoma disruption, periosteal rupture and internal fixation in 6-month-old male Wistar rats was established, in order to identify expression patterns of key genes and their protein products throughout the bone healing process. A tibial shaft fracture was produced using the three-point bending technique, the hematoma was drained through a 4-mm incision on the medial aspect of the tibia and the fracture stabilized by inserting a needle into the medullary canal...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27843223/treatment-of-atrophic-femoral-non-unions-according-to-the-diamond-concept-results-of-one-and-two-step-surgical-procedure
#18
Arash Moghaddam, Benjamin Thaler, Thomas Bruckner, Michael Tanner, Gerhard Schmidmaier
BACKGROUND: The treatment of non-unions in long bones poses a great challenge, particularly in cases of infection or large osseous defects. This article evaluates the use of the diamond concept in the treatment of femoral non-unions in a one-step or two-step procedure according to the Masquelet technique. PATIENTS AND METHODS: Between February 2010 and March 2014, 88 patients with atrophic femoral non-unions were included in our study. The treatment was performed in one step (Group G1) on 41 patients and in two-step Masquelet technique (Group G2) on 47 patients, according to the diamond concept...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27829744/bone-morphogenetic-proteins-signaling-periodontal-bone-regeneration-and-repair
#19
REVIEW
G Sai Anusuya, M Kandasamy, S A Jacob Raja, S Sabarinathan, P Ravishankar, Balu Kandhasamy
Bone morphogenetic proteins (BMPs) are a group of growth factors also known as cytokines and as metabologens. Originally discovered by their ability to induce the formation of bone and cartilage, BMPs are now considered to constitute a group of pivotal morphogenetic signals, orchestrating tissue architecture throughout the body. The important functioning of BMP signals in physiology is emphasized by the multitude of roles for dysregulated BMP signaling in pathological processes. A study done wherein it was found that protein extracts from bone implanted into the animals at nonbone sites induced the formation of new cartilage and bone tissue...
October 2016: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/27822590/do-osteoporotic-fractures-constitute-a-greater-recalcitrant-challenge-for-skeletal-regeneration-investigating-the-efficacy-of-bmp-7-and-zoledronate-treatment-of-diaphyseal-fractures-in-an-open-fracture-osteoporotic-rat-model
#20
N Mathavan, M Tägil, H Isaksson
Osteoporotic fractures may pose a challenge for skeletal regeneration. This study investigates if pharmaceutical interventions such as bone morphogenetic protein 7 (BMP-7) alone or in combination with Zoledronate have equivalent efficacy in osteoporotic bone? Our findings suggest they do and that an osteoporotic bone environment may increase sensitivity to BMP-7. INTRODUCTION: Osteoporosis is thought to contribute to delayed or impaired bone healing. Bone morphogenetic protein 7 (BMP-7) alone or synergistically combined with zoledronate (ZA) has proven effective in augmenting the regenerative response in healthy young male rats...
February 2017: Osteoporosis International
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