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Bone morphogenetic protein

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https://www.readbyqxmd.com/read/28535613/expression-and-purification-of-biologically-active-human-bone-morphogenetic-protein-4-in-recombinant-chinese-hamster-ovary-cells
#1
Minyub Cha, Nara Han, Jia Pi, Yongsu Jeong, Kwanghee Baek, Jaeseung Yoon
Bone morphogenetic protein-4 (BMP-4) is considered to have therapeutic potential for various diseases including cancers; however, the high expression of biologically active recombinant human BMP-4 (rhBMP-4) needed to manufacture rhBMP-4 for therapeutic purposes has yet to be established. In the current study, we established a recombinant Chinese hamster ovary (rCHO) cell line overexpressing rhBMP-4 as well as a production process using 7.5-l bioreactor (5 l working volume). The expression of the mature rhBMP-4 was significantly enhanced by recombinant furin expression...
May 24, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28534995/low%C3%A2-level-mechanical-vibration-enhances-osteoblastogenesis-via-a-canonical-wnt-signaling%C3%A2-associated-mechanism
#2
Heqi Gao, Mingming Zhai, Pan Wang, Xuhui Zhang, Jing Cai, Xiaofei Chen, Guanghao Shen, Erping Luo, Da Jing
Osteoporosis is a skeletal metabolic disease characterized by reduced bone mass and a high susceptibility to fractures, in which osteoblasts and osteoclasts are highly involved in the abnormal bone remodeling processes. Recently, low‑magnitude, high‑frequency whole‑body vibration has been demonstrated to significantly reduce osteopenia experimentally and clinically. However, the underlying mechanism regarding how osteoblastic activity is altered when bone tissues adapt to mechanical vibration remains elusive...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534195/identification-of-a-small-molecule-that-facilitates-the-differentiation-of-human-ipscs-escs-and-mouse-embryonic-pancreatic-explants-into-pancreatic-endocrine-cells
#3
Yasushi Kondo, Taro Toyoda, Ryo Ito, Michinori Funato, Yoshiya Hosokawa, Satoshi Matsui, Tomomi Sudo, Masahiro Nakamura, Chihiro Okada, Xiaotong Zhuang, Akira Watanabe, Akira Ohta, Nobuya Inagaki, Kenji Osafune
AIMS/HYPOTHESIS: Pancreatic beta-like cells generated from human induced pluripotent stem cells (hiPSCs) or human embryonic stem cells (hESCs) offer an appealing donor tissue source. However, differentiation protocols that mainly use growth factors are costly. Therefore, in this study, we aimed to establish efficient differentiation protocols to change hiPSCs/hESCs to insulin (INS)(+) cells using novel small-molecule inducers. METHODS: We screened small molecules that increased the induction rate of INS(+) cells from hESC-derived pancreatic and duodenal homeobox 1 (PDX1)(+) pancreatic progenitor cells...
May 22, 2017: Diabetologia
https://www.readbyqxmd.com/read/28530637/cell-penetrating-peptides-selectively-targeting-smad3-inhibit-profibrotic-tgf-%C3%AE-signaling
#4
Jeong-Han Kang, Mi-Yeon Jung, Xueqian Yin, Mahefatiana Andrianifahanana, Danielle M Hernandez, Edward B Leof
TGF-β is considered a master switch in the pathogenesis of organ fibrosis. The primary mediators of this activity are the SMAD proteins, particularly SMAD3. In the current study, we have developed a cell-penetrating peptide (CPP) conjugate of the HIV TAT protein that is fused to an aminoterminal sequence of sorting nexin 9 (SNX9), which was previously shown to bind phosphorylated SMAD3 (pSMAD3). We determined that specifically preventing the nuclear import of pSMAD3 using the TAT-SNX9 peptide inhibited profibrotic TGF-β activity in murine cells and human lung fibroblasts as well as in vivo with no demonstrable toxicity...
May 22, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28530133/efficacy-of-a-self-assembling-peptide-hydrogel-spg-178-gel-for-bone-regeneration-and-three-dimensional-osteogenic-induction-of-dental-pulp-stem-cells
#5
Jun Tsukamoto, Keiko Naruse, Yusuke Nagai, Shuhei Kan, Nobuhisa Nakamura, Masaki Hata, Maiko Omi, Tatsuhide Hayashi, Tatsushi Kawai, Tatsuaki Matsubara
The aim of this study was to assess the efficacy of a self-assembling peptide hydrogel as a scaffold for bone regeneration. We used a neutral and injectable self-assembling peptide hydrogel, SPG-178-Gel. Bone defects (5 mm in diameter) in rat calvarial bones were filled with a mixture of alpha-modified Eagle's medium and the peptide hydrogel. Three weeks after surgery, soft X-ray and micro-computed tomography (micro-CT) images of the gel-treated bones showed new bone formations in the periphery and in central areas of the defects...
May 20, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28527661/modulation-of-adipocyte-function-by-the-tgf-%C3%AE-family
#6
Yuhang Qiao, Shozo Tomonaga, Masashi Suenaga, Tohru Matsui, Masayuki Funaba
Members of the transforming growth factor-β (TGF-β) family are known to regulate the commitment of mesenchymal stem cells to an adipocyte lineage and the differentiation of preadipocytes to adipocytes. However, the roles of TGF-β family members in mature adipocytes are not known. The present study explored the modulation of cell function in 3T3-L1 adipocytes treated with the TGF-β family members TGF-β1, activin A, activin B, bone morphogenetic protein (BMP) 4, and BMP7. These TGF-β family members modulated the expression of some adipokines; activin A upregulated leptin expression, and activin B downregulated the expression of plasminogen activator inhibitor-1...
May 17, 2017: Cytokine
https://www.readbyqxmd.com/read/28527192/in-vitro-evaluation-of-an-injectable-biphasic-calcium-phosphate-bcp-carrier-system-combined-with-recombinant-human-bone-morphogenetic-protein-rhbmp-9
#7
Masako Fujioka-Kobayashi, Benoit Schaller, Yufeng Zhang, Benjamin E Pippenger, Richard J Miron
Bone morphogenetic protein 9 (BMP9) has previously been characterized as the strongest osteoinductive growth factor among the BMP family. The aim of the present study was to evaluate the possibility of combining rhBMP9 with an injectable biphasic calcium phosphate (I-BCP, maxresorb inject®), since I-BCP is an easy to handle biomaterial with ideal properties for bone augmentation procedures. The adsorption potential of rhBMP9 as well as the cell behavior of bone stromal ST2 cells were investigated on cell viability, adhesion, proliferation and osteogenic differentiation for I-BCP combined with/without rhBMP9 in vitro...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28525313/a-tunable-three-dimensional-in-vitro-culture-model-of-growth-plate-cartilage-using-alginate-hydrogel-scaffolds
#8
Alek G Erickson, Taylor D Laughlin, Sarah M Romereim, Catherine N Sargus-Patino, Angela K Pannier, Andrew T Dudley
Defining the final size and geometry of engineered tissues through precise control of the scalar and vector components of tissue growth is a necessary benchmark for regenerative medicine, but it has proved to be a significant challenge for tissue engineers. The growth plate cartilage that promotes elongation of the long bones is a good model system for studying morphogenetic mechanisms because cartilage is composed of a single cell type, the chondrocyte; chondrocytes are readily maintained in culture; and growth trajectory is predominately in a single vector...
May 18, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28524624/pulmonary-arterial-hypertension-progress-in-understanding-the-disease-and-prioritizing-strategies-for-drug-development
#9
REVIEW
P Ghataorhe, C J Rhodes, L Harbaum, M Attard, J Wharton, M R Wilkins
Pulmonary arterial hypertension (PAH), at one time a largely overlooked disease, is now the subject of intense study in many academic and biotech groups. The availability of new treatments has increased awareness of the condition. This in turn has driven a change in the demographics of PAH, with an increase in the mean age at diagnosis. The diagnosis of PAH in more elderly patients has highlighted the need for careful phenotyping of patients and for further studies to understand how best to manage pulmonary hypertension associated with, for example, left heart disease...
May 19, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28523310/the-importance-of-bmp6-marker-within-the-process-of-epithelial-mesenchymal-transition-in-the-pleomorphic-adenoma-of-the-salivary-gland
#10
Anca Ştefania Enescu, Aurelia Enescu, Alina Nicoleta Căpitănescu, Mihaela Roxana Mitroi, Vlad Pădureanu, Elena Mădălina Dumitrescu, Dana Maria Albulescu, Marius Eugen Ciurea
The pleomorphic adenoma is the most frequently encountered tumor of the salivary glands, representing between 45% and 75% of the total number of the tumors of the salivary glands. According to the literature, there are many studies on the immunohistochemical aspects of the myoepithelial cells, present in the pleomorphic adenoma of the salivary gland. A big diversity of mono and polyclonal antibodies, such as the cytokeratins, muscular proteins and other markers, has been used. In our study, we investigated the immunohistochemical aspect of bone morphogenetic protein 6 (BMP6) marker concerning 15 cases of pleomorphic adenomas of the salivary glands...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28522681/endothelial-nox1-oxidase-assembly-in-human-pulmonary-arterial-hypertension-driver-of-gremlin1-mediated-proliferation
#11
Imad Al Ghouleh, Sanghamitra Sahoo, Daniel N Meijles, Jefferson H Amaral, Daniel S de Jesus, John Sembrat, Mauricio Rojas, Dmitry A Goncharov, Elena A Goncharova, Patrick J Pagano
Background: Pulmonary arterial hypertension (PAH) is a rapidly degenerating and devastating disease of increased pulmonary vessel resistance leading to right heart failure. Palliative modalities remain limited despite recent endeavors to investigate the mechanisms underlying increased pulmonary vascular resistance, i.e. aberrant vascular remodeling and occlusion. However, little is known of the molecular mechanisms responsible for endothelial proliferation, a root cause of PAH-associated vascular remodeling...
May 18, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28522401/comparison-of-the-osteogenesis-and-fusion-rates-between-activin-a-bmp-2-chimera-ab204-and-rhbmp-2-in-a-beagle-s-posterolateral-lumbar-spine-model
#12
Guang Bin Zheng, Byung-Hak Yoon, Jae Hyup Lee
BACKGROUND CONTEXT: Activin A/BMP-2 chimera (AB204) could promote bone healing more effectively than recombinant bone morphogenetic protein 2 (rhBMP-2) with much lower dose in rodent model, but there is no report about the effectiveness of AB204 in a large animal model. PURPOSE: The purpose of this study was to compare the osteogenesis and fusion rate between AB204 and rhBMP-2 using biphasic calcium phosphate (BCP) as a carrier in beagle's posterolateral lumbar fusion model...
May 15, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28517970/osteoblast-progenitors-enhance-osteogenic-differentiation-of-periodontal-ligament-stem-cells
#13
Miao Yu, Limei Wang, Pengfei Ba, Linxia Li, Long Sun, Xiaoqi Duan, Pishan Yang, Chengzhe Yang, Qinfeng Sun
BACKGROUND: Osteoblasts and periodontal ligament stem cells (PDLSCs) play an important role in maintaining physiological function of periodontal tissues and participating in periodontal regeneration. Elucidation of interactions between osteoblasts and PDLSCs will aid understanding of periodontal regeneration mechanisms. This study aimed to determine whether pre-osteoblasts can promote osteoblastic/cementoblastic differentiation of PDLSCs. METHODS: PDLSCs were cultured alone (control group), or co-cultured indirectly with human gingival fibroblasts (HGFs) (HGFs group) or MC3T3-E1 cells (OB groups)...
May 18, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28515335/in-situ-bone-tissue-engineering-via-ultrasound-mediated-gene-delivery-to-endogenous-progenitor-cells-in-mini-pigs
#14
Maxim Bez, Dmitriy Sheyn, Wafa Tawackoli, Pablo Avalos, Galina Shapiro, Joseph C Giaconi, Xiaoyu Da, Shiran Ben David, Jayne Gavrity, Hani A Awad, Hyun W Bae, Eric J Ley, Thomas J Kremen, Zulma Gazit, Katherine W Ferrara, Gadi Pelled, Dan Gazit
More than 2 million bone-grafting procedures are performed each year using autografts or allografts. However, both options carry disadvantages, and there remains a clear medical need for the development of new therapies for massive bone loss and fracture nonunions. We hypothesized that localized ultrasound-mediated, microbubble-enhanced therapeutic gene delivery to endogenous stem cells would induce efficient bone regeneration and fracture repair. To test this hypothesis, we surgically created a critical-sized bone fracture in the tibiae of Yucatán mini-pigs, a clinically relevant large animal model...
May 17, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28514714/calcitonin-protects-chondrocytes-from-lipopolysaccharide-induced-apoptosis-and-inflammatory-response-through-mapk-wnt-nf-%C3%AE%C2%BAb-pathways
#15
Lai-Bo Zhang, Zhen-Tao Man, Wei Li, Wei Zhang, Xian-Quan Wang, Shui Sun
Calcitonin (CT) is an anti-absorbent, which has long been used for treatment of osteoporosis. However, little information is available about the effects of CT on osteoarthritis (OA). This study was mainly aimed to explore the effects of CT on the treatment of OA, as well as the underlying mechanisms. Chondrocytes were isolated from immature mice and then were incubated with lipopolysaccharide (LPS), CT, small interfering (si) RNA against bone morphogenetic protein (BMP)-2, and/or the inhibitors of MAPK/Wnt/NF-κB pathway...
May 14, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28513615/exome-sequencing-of-two-italian-pedigrees-with-non-isolated-chiari-malformation-type-i-reveals-candidate-genes-for-cranio-facial-development
#16
Elisa Merello, Lorenzo Tattini, Alberto Magi, Andrea Accogli, Gianluca Piatelli, Marco Pavanello, Domenico Tortora, Armando Cama, Zoha Kibar, Valeria Capra, Patrizia De Marco
Chiari malformation type I (CMI) is a congenital abnormality of the cranio-cerebral junction with an estimated incidence of 1 in 1280. CMI is characterized by underdevelopment of the occipital bone and posterior fossa (PF) and consequent cerebellar tonsil herniation. The presence for a genetic basis to CMI is supported by many lines of evidence. The cellular and molecular mechanisms leading to CM1 are poorly understood. The occipital bone formation is dependent on complex interactions between genes and molecules with pathologies resulting from disruption of this delicate process...
May 17, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28513557/calcium-supplement-derived-from-gallus-gallus-domesticus-promotes-bmp-2-runx2-smad5-and-suppresses-trap-rank-expression-through-mapk-signaling-activation
#17
Han Seok Yoo, Gyung-Ji Kim, Da Hye Song, Kang-Hyun Chung, Kwon-Jai Lee, Dong-Hee Kim, Jeung Hee An
The present study evaluated the effects of a calcium (Ca) supplement derived from Gallus gallus domesticus (GD) on breaking force, microarchitecture, osteogenic differentiation and osteoclast differentiation factor expression in vivo in Ca-deficient ovariectomized (OVX) rats. One percent of Ca supplement significantly improved Ca content and bone strength of the tibia. In micro-computed tomography analysis, 1% Ca supplement attenuated OVX- and low Ca-associated changes in bone mineral density, trabecular thickness, spacing and number...
May 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28512021/statin-use-after-diagnosis-of-colon-cancer-and-patient-survival
#18
Philip W Voorneveld, Marlies S Reimers, Esther Bastiaannet, Rutger J Jacobs, Ronald van Eijk, Marjolein M J Zanders, Ron M C Herings, Myrthe P P van Herk-Sukel, Liudmila L Kodach, Tom van Wezel, Peter J K Kuppen, Hans Morreau, Cornelis J H van de Velde, James C H Hardwick, Gerrit Jan Liefers
BACKGROUND & AIMS: Statin use has been associated with a reduced incidence of colorectal cancer, and might also affect survival of patients diagnosed with colon cancer. Statins are believed to inhibit Ras signaling, and also activate the bone morphogenetic protein (BMP) signaling pathway in colorectal cancer cells. We investigated the effects of statins on overall survival of patients with a diagnosis of colon cancer, and whether their effects were associated with changes in KRAS or the BMP signaling pathways...
May 13, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28507884/a-retrospective-analysis-of-complications-associated-with-bone-morphogenetic-protein-2-in-anterior-lumbar-interbody-fusion
#19
Kevork Hindoyan, Justin Tilan, Zorica Buser, Jeremiah R Cohen, Darrel S Brodke, Jim A Youssef, Jong-Beom Park, S Tim Yoon, Hans-Joerg Meisel, Jeffrey C Wang
STUDY DESIGN: Retrospective review. OBJECTIVE: The aim of our study was to quantify the frequency of complications associated with recombinant human bone morphogenetic protein 2 (rhBMP-2) use in anterior lumbar interbody fusion (ALIF). METHODS: The orthopedic subset of the Medicare database (PearlDiver) was queried for this retrospective cohort study using International Statistical Classification of Diseases 9 (ICD-9) and Current Procedure Terminology (CPT) codes for ALIF procedures with and without rhBMP-2 between 2005 and 2010...
April 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28506896/neurodevelopmental-macpfs-the-vertebrate-astrotactins-and-brinps
#20
REVIEW
Susan R Berkowicz, Aminah Giousoh, Phillip I Bird
Astrotactins (ASTNs) and Bone morphogenetic protein/retinoic acid inducible neural-specific proteins (BRINPs) are two groups of Membrane Attack Complex/Perforin (MACPF) superfamily proteins that show overlapping expression in the devel oping and mature vertebrate nervous system. ASTN(1-2) and BRINP(1-3) genes are found at conserved loci in humans that have been implicated in neurodevelopmental disorders (NDDs).
May 12, 2017: Seminars in Cell & Developmental Biology
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