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Bone morphogenic protein

Roy Baas, Ayestha Sijm, Hetty A A M van Teeffelen, Robert van Es, Harmjan R Vos, H Th Marc Timmers
Gene-specific transcription factors (GSTFs) control gene transcription by DNA binding and specific protein complex recruitment, which regulates promoter accessibility for transcription initiation by RNA polymerase II. Mutations in the GSTFs Suppressor of Mothers Against Decapentaplegic 2 (SMAD2) and SMAD4 are frequently associated with colon and rectal carcinomas. These proteins play an important role in bone morphogenic protein (BMP) and transforming growth factor β (TGF-β) signaling pathways controlling cell fate and proliferation...
October 4, 2016: Journal of Biological Chemistry
Estelle Ayme-Dietrich, Sophie M Banas, Laurent Monassier, Luc Maroteaux
Serotonin and bone-marrow-derived stem cells participate together in triggering pulmonary hypertension. Our work has shown that the absence of 5-HT2B receptors generates permanent changes in the composition of the blood and bone-marrow in the myeloid lineages, particularly in endothelial cell progenitors. The initial functions of 5-HT2B receptors in pulmonary arterial hypertension (PAH) are restricted to bone-marrow cells. They contribute to the differentiation/proliferation/mobilization of endothelial progenitor cells from the bone-marrow...
2016: Biologie Aujourd'hui
Claudio A Franco, Holger Gerhardt
Bone morphogenic proteins (BMPs) and blood flow regulate vascular remodeling and homeostasis. In this issue, Baeyens et al. (2016. J. Cell Biol show that blood flow sensitizes endothelial cells to BMP9 signaling by triggering Alk1/ENG complexing to suppress cell proliferation and to recruit mural cells, thereby establishing endothelial quiescence.
September 26, 2016: Journal of Cell Biology
Seung-Hyun Lee, Yoon-Jung Kim, Se-Young Choi
The structure and function of synapses is modulated by the interaction of presynaptic and postsynaptic neurons via cell adhesion molecules or secreted signal molecules. Bone morphogenic protein (BMP) is a secreted molecule mediating retrograde signaling that is involved in the formation and maintenance of synaptic structure throughout many animal species. However, how BMP signaling modulates presynaptic neurotransmitter release is not yet clear. We studied the function of BMP signaling factors in neurotransmitter release in Drosophila neuromuscular synapses using loss-of-function mutants in genes for BMP modulators, Wit, Mad, and Dad...
October 21, 2016: Biochemical and Biophysical Research Communications
Michael H Heggeness, Nora Strong, Paul H Wooley, Shang-You Yang
BACKGROUND: The clinical use of recombinant human bone morphogenic protein 2 (rhBMP-2, Infuse) has been associated with nerve-related complications including new-onset sciatica, and retrograde ejaculation. PURPOSE: To better understand the interaction of rhBMP-2 and peripheral nerves with the intent of making procedures safer. STUDY DESIGN/SETTING: Using a mouse model to examine the direct effect of diluted rhBMP-2 (Infuse) on murine sciatic nerves...
September 21, 2016: Spine Journal: Official Journal of the North American Spine Society
Barbara C Cahill, Nathan D Hatton, John J Ryan
No abstract text is available yet for this article.
August 17, 2016: Journal of Heart and Lung Transplantation
Jin Ho Lee, Dong Kyun Woo, Tae Ho Kim, Jun Goo Kang, Jeong-Won Yun, Jin-Ho Park, Bong-Wook Park, Young-Hoon Kang, Gyu-Jin Rho, Si-Jung Jang, Ji-Sung Park, Hee-Chun Lee, Young Min Yoon, Tae Sung Hwang, Deok Ryong Kim, Sun-Chul Hwang, Dong Hoon Lee, Ho Young Kim, Se Heang Oh, June-Ho Byun
Polycaprolactone (PCL) is a biodegradable polyester that is bioresorbable and biocompatible, and is widely used in medical fields. This study examines in vitro and in vivo osteogenic activities of cultured human periosteum-derived osteoblasts (POs) seeded into growth factor (bone morphogenic protein 2 [BMP-2] or vascular endothelial growth factor [VEGF])-releasing scaffolds of PCL beads coated with Pluronic F127. Each growth factor immobilized in the PCL/F127 is cumulatively released from the beads for more than 40 days (up to 3...
September 19, 2016: Journal of Biomedical Materials Research. Part A
Wendong Ruan, Yuan Xue, Yaqi Zong, Chao Sun
In the present study, third‑generation autologous‑inactivated bone morphogenic protein 2 (BMP2), BMP4, BMP6, BMP7, BMP9 and Wnt3a lentiviral vectors were constructed and integrated into the genome of MC3T3‑E1 murine mesenchymal stem cells (MMSCs) to produce osteoinductive factor gene‑modified MMSCs. The transfection efficiency of each osteoinductive factor was then determined by detecting the expression levels of runt related transcription factor 2 (Runx2) mRNA. The cotransfection with combinations of two lentiviruses was performed, and the expression levels of bone γ‑carboxyglutamate protein and alkaline phosphatase in the MC3T3‑E1 cell culture supernatant were detected...
September 12, 2016: Molecular Medicine Reports
M Azizur Rahman
In recent years, the medicinal potential of marine organisms has attracted increasing attention. This is due to their immense diversity and adaptation to unique ecological niches that has led to vast physiological and biochemical diversification. Among these organisms, marine calcifiers are an abundant source of novel proteins and chemical entities that can be used for drug discovery. Studies of the skeletal organic matrix proteins of marine calcifiers have focused on biomedical applications such as the identification of growth inducing proteins that can be used for bone regeneration, for example, 2/4 bone morphogenic proteins (BMP)...
September 12, 2016: Marine Drugs
Young-Dan Cho, Bong-Soo Kim, Chang-Seok Lee, Kyung-Hwa Kim, Yang-Jo Seol, Yong-Moo Lee, In-Chul Rhyu, Young Ku, Hyun-Mo Ryoo
BACKGROUND: In our previous studies, we demonstrated that a fibronectin (FN)-derived oligopeptide termed F20 stimulates osteoblast differentiation in vitro and bone formation in vivo. However, the fundamental molecular mechanism by which F20 stimulates osteogenesis remains unknown. Therefore, in this study we investigated the molecular mechanism underlying the effect of F20 in osteoblast differentiation. METHODS: The role of F20 in osteoblast differentiation was examined using the mouse bone-marrow-derived ST2 cell line...
September 13, 2016: Journal of Periodontology
Maria A Gubbiotti, Thomas Neill, Renato V Iozzo
Perlecan, a large basement membrane heparan sulfate proteoglycan, is expressed in a wide array of tissues where it regulates diverse cellular processes including bone formation, inflammation, cardiac development, and angiogenesis. Here we provide a contemporary review germane to the biology of perlecan encompassing its genetic regulation as well as an analysis of its modular protein structure as it pertains to function. As perlecan signaling from the extracellular matrix converges on master regulators of autophagy, including AMPK and mTOR, via a specific interaction with vascular endothelial growth factor receptor 2, we specifically focus on the mechanism of action of perlecan in autophagy and angiogenesis and contrast the role of endorepellin, the C-terminal fragment of perlecan, in these cellular and morphogenic events...
September 6, 2016: Matrix Biology: Journal of the International Society for Matrix Biology
Sébastien A B Roy, Joannie M Allaire, Camille Ouellet, Faiza Maloum-Rami, Véronique Pomerleau, Étienne Lemieux, Jean-Philippe Babeu, Jasmin Rousseau, Marilène Paquet, Perrine Garde-Granger, François Boudreau, Nathalie Perreault
Bmps are morphogens involved in various gastric cellular functions. Studies in genetically-modified mice have shown that Bmp disruption in gastric epithelial and stromal cell compartments leads to the development of tumorigenesis. Our studies have demonstrated that abrogation of gastric epithelial Bmp signaling alone was not sufficient to recapitulate the neoplastic features associated with total gastric loss of Bmp signaling. Thus, epithelial Bmp signaling does not appear to be a key player in gastric tumorigenesis initiation...
2016: Scientific Reports
Nanda Kishore Sahoo, Ajay P Desai, Indranil Deb Roy, Vishal Kulkarni
Breach in the palatal vault leading to an abnormal communication between oral and nasal cavity is known as oro-nasal communication. It is an uncommon presentation in day-to-day clinical practice except in some patients of cleft lip and palate.Etiology may be congenital or acquired. Alveolar and palatal cleft defects are the most common etiological factor. The acquired causes may be trauma, periapical pathology, infections, neoplasms, postsurgical complications, and radio and chemo necrosis.Clinical features like nasal regurgitation of food, defective speech, fetid odor, bad taste, and upper respiratory tract and ear infection are associated with oro-nasal communication...
September 2016: Journal of Craniofacial Surgery
Shirley P Yu, David J Hunter
INTRODUCTION: Conventional medical therapies for osteoarthritis are mainly palliative in nature, aiming to control pain and symptoms. Traditional intra-articular therapies are not recommended in guidelines as first line therapy, but are potential alternatives, when conventional therapies have failed. AREAS COVERED: Current and future intra-articular drug therapies for osteoarthritis are highlighted, including corticosteroids, hyaluronate, and more controversial treatments marketed commercially, namely platelet rich plasma and mesenchymal cell therapy...
October 2016: Expert Opinion on Pharmacotherapy
Xiao-Chuan Li, Yao-Hong Wu, Xue-Dong Bai, Wei Ji, Zi-Ming Guo, Chao-Feng Wang, Qing He, Di-Ke Ruan
Tissue engineering has shown great success in the treatment of intervertebral disk degeneration (IVDD) in the past decade. However, the adverse and harsh microenvironment associated in the intervertebral disks remains a great obstacle for the survival of transplanted cells. Although increasing numbers of new materials have been created or modified to overcome this hurdle, a new effective strategy of biological therapy is still required. In this study, bone morphogenic protein 7 (BMP7)-based functionalized self-assembling peptides were developed by conjugating a bioactive motif from BMP-7 (RKPS) onto the C-terminal of the peptide RADARADARADARADA (RADA16-I) at a ratio of 1:1 to form a new RADARKPS peptide...
October 2016: Tissue Engineering. Part A
Rebecca C Pollitt, Vrinda Saraff, Ann Dalton, Emma A Webb, Nick J Shaw, Glenda J Sobey, M Zulf Mughal, Emma Hobson, Farhan Ali, Nicholas J Bishop, Paul Arundel, Wolfgang Högler, Meena Balasubramanian
Osteogenesis Imperfecta (OI) is an inherited bone fragility disorder most commonly associated with autosomal dominant mutations in the type I collagen genes. Autosomal recessive mutations in a number of genes have also been described, including the BMP1 gene that encodes the mammalian Tolloid (mTLD) and its shorter isoform bone morphogenic protein-1 (BMP1). To date, less than 20 individuals with OI have been identified with BMP1 mutations, with skeletal phenotypes ranging from mild to severe and progressively deforming...
August 30, 2016: American Journal of Medical Genetics. Part A
Mengrui Wu, Guiqian Chen, Yi-Ping Li
Transforming growth factor-beta (TGF-β) and bone morphogenic protein (BMP) signaling has fundamental roles in both embryonic skeletal development and postnatal bone homeostasis. TGF-βs and BMPs, acting on a tetrameric receptor complex, transduce signals to both the canonical Smad-dependent signaling pathway (that is, TGF-β/BMP ligands, receptors, and Smads) and the non-canonical-Smad-independent signaling pathway (that is, p38 mitogen-activated protein kinase/p38 MAPK) to regulate mesenchymal stem cell differentiation during skeletal development, bone formation and bone homeostasis...
2016: Bone Research
Jin-Guang He, Ting-Liang Wang, Tao Wang, Hua Xu, Yi Zhang, Jia-Sheng Dong
We have previously reported that human dermal bone morphogenic protein receptor (BMPR) IB positive subpopulation had a high osteogenic differentiation potential and may be a promising cell source for allogeneic bone tissue engineering. In this study, the immunologic properties of dermal BMPR-IB+ subpopulation before and after osteogenic differentiation were reported. The results confirmed that dermal BMPR-IB+ cells possessed a similar osteogenic differentiation potential with bone marrow mesenchymal stromal cells in a mouse model...
2016: PloS One
Sudhakar S Agnihothram, Sheryl Anne Vermudez, Lisa Mullis, Todd A Townsend, Mugimane G Manjanatha, Marli P Azevedo
Noroviruses (NoV) are the leading cause of nonbacterial gastroenteritis in humans, and replicate extensively in the human gastrointestinal (GI) tract. Silica (also known as silicon dioxide, SiO2) nanoparticles (NPs) used in processed foods, dairy products, and beverages also accumulate in the GI tract. We investigated the effect of silica NPs on NoV replication and host cell response during virus infection, using murine norovirus (MNV-1) infection of RAW 264.7 murine macrophages. Pretreatment with 10 μg/ml silica significantly reduced the viability of macrophages, but no cumulative effects on viability of macrophages were observed with MNV-1 infection...
July 2016: Journal of Nanoscience and Nanotechnology
Mugdha Deshpande, Zachary Feiger, Amanda K Shilton, Christina C Luo, Ethan Silverman, Avital A Rodal
TAR DNA-binding protein 43 (TDP-43) is genetically and functionally linked to amyotrophic lateral sclerosis (ALS) and regulates transcription, splicing, and transport of thousands of RNA targets that function in diverse cellular pathways. In ALS, pathologically altered TDP-43 is believed to lead to disease by toxic gain-of-function effects on RNA metabolism, as well as by sequestering endogenous TDP-43 and causing its loss of function. However, it is unclear which of the numerous cellular processes disrupted downstream of TDP-43 dysfunction lead to neurodegeneration...
October 1, 2016: Molecular Biology of the Cell
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