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BMP signalling

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https://www.readbyqxmd.com/read/28720849/melatonin-promotes-osteoblast-differentiation-by-regulating-osterix-protein-stability-and-expression
#1
Younho Han, Young-Mi Kim, Hyung Sik Kim, Kwang Youl Lee
Although the biological role of melatonin in osteogenic differentiation has been suggested, the mechanism of osteoblast differentiation remains unclear. Thus, the present study investigated the underlying molecular mechanisms based on osteoblast-specific transcription factors. We found that melatonin enhanced BMP-4-induced osteogenic differentiation and increased the expression of osteogenic markers, especially Osterix, which is an essential transcription factor for the differentiation of preosteoblasts into mature osteoblasts in the late stage of osteoblast differentiation...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716575/strategic-targeting-of-multiple-bmp-receptors-prevents-trauma-induced-heterotopic-ossification
#2
Shailesh Agarwal, Shawn J Loder, Christopher Breuler, John Li, David Cholok, Cameron Brownley, Jonathan Peterson, Hsiao H Hsieh, James Drake, Kavitha Ranganathan, Yashar S Niknafs, Wenzhong Xiao, Shuli Li, Ravindra Kumar, Ronald Tompkins, Michael T Longaker, Thomas A Davis, Paul B Yu, Yuji Mishina, Benjamin Levi
Trauma-induced heterotopic ossification (tHO) is a condition of pathologic wound healing, defined by the progressive formation of ectopic bone in soft tissue following severe burns or trauma. Because previous studies have shown that genetic variants of HO, such as fibrodysplasia ossificans progressiva (FOP), are caused by hyperactivating mutations of the type I bone morphogenetic protein receptor (T1-BMPR) ACVR1/ALK2, studies evaluating therapies for HO have been directed primarily toward drugs for this specific receptor...
July 15, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28714176/osteogenic-differentiation-of-3d-cultured-mesenchymal-stem-cells-induced-by-bioactive-peptides
#3
Vera Lukasova, Matej Buzgo, Vera Sovkova, Jana Dankova, Michala Rampichova, Evzen Amler
OBJECTIVES: Bioactive peptides derived from receptor binding motifs of native proteins are a potent source of bioactive molecules that can induce signalling pathways. These peptides could substitute for osteogenesis promoting supplements. The work presented here compares three kinds of bioactive peptides derived from collagen III, bone morphogenetic protein 7 (BMP-7) and BMP-2 with their potential osteogenic activity on the model of porcine mesenchymal stem cells (pMSCs). MATERIALS AND METHODS: pMSCs were cultured on electrospun polycaprolactone nanofibrous scaffolds with different concentrations of the bioactive peptides without addition of any osteogenic supplement...
August 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28713017/intracellular-co-delivery-of-sr-ion-and-phenamil-drug-through-mesoporous-bioglass-nanocarriers-synergizes-bmp-signaling-and-tissue-mineralization
#4
Jung-Hwan Lee, Nandin Mandakhbayar, Ahmed El-Fiqi, Haw-Won Kim
Inducing differentiation and maturation of resident multipotent stem cells (MSCs) is an important strategy to regenerate hard tissues in mal-calcification conditions. Here we explore a co-delivery approach of therapeutic molecules comprised of ion and drug through a mesoporous bioglass nanoparticle (MBN) for this purpose. Recently, MBN has offered unique potential as a nanocarrier for hard tissues, in terms of high mesoporosity, bone bioactivity (and possibly degradability), tunable delivery of biomolecules, and ionic modification...
July 13, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28711939/baicalin-attenuates-monocrotaline-induced-pulmonary-hypertension-through-bone-morphogenetic-protein-signaling-pathway
#5
Zhaohua Zhang, Luan Zhang, Chao Sun, Feng Kong, Jue Wang, Qian Xin, Wen Jiang, Kaili Li, Ou Chen, Yun Luan
Baicalin, a flavonoid compound extracted from roots of Scutellaria baicalensis Georgi (huang qin), it has been shown to effectively attenuates pulmonary hypertension (PH), however, the potential mechanism remains unexplored. In this study, we investigated the potential mechanism of baicalin on monocrotaline (MCT)-induced PH in rats. The results showed that baicalin attenuated lung damage in PH rat model through inhibiting the pulmonary arterial smooth muscle cell proliferation and induction of cells apoptosis...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28711495/evidence-for-constitutive-bone-morphogenetic-protein-2-secretion-by-m1-macrophages-constitutive-auto-paracrine-osteogenic-signaling-by-bmp-2-in-m1-macrophages
#6
Prabhatchandra R Dube, Lutz Birnbaumer, Guillermo Vazquez
Mechanisms mediating vascular calcification recapitulate osteogenic processes encompassing bone formation and imply participation of bone related proteins such as bone morphogenetic protein-2 (BMP-2). Macrophages are amongst the cells that contribute to vascular ossification by releasing cytokines that induce an osteogenic program in vascular smooth muscle cells, and also by becoming themselves osteoclast-like cells. In inflammatory vascular disease, the macrophage population in the vascular wall is diverse, with the M1 or inflammatory, and the M2 or anti-inflammatory macrophage types being dominant...
July 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28705896/bmp-signaling-maintains-a-mesoderm-progenitor-cell-state-in-the-mouse-tailbud
#7
Richa Sharma, Maxwell E R Shafer, Eric Bareke, Mathieu Tremblay, Jacek Majewski, Maxime Bouchard
Caudal somites are generated from a pool of progenitor cells located in the tailbud region. These progenitor cells form the presomitic mesoderm that gradually differentiates into somites under the action of the segmentation clock. The signals responsible for tailbud mesoderm progenitor pool maintenance during axial elongation are still elusive. Here, we show that Bmp signaling is sufficient to activate the entire mesoderm progenitor gene signature in primary cultures of caudal mesoderm cells. Bmp signaling acts through the key regulatory genes Brachyury (T) and Nkx1-2 and contributes to the activation of several other regulators of the mesoderm progenitor gene network...
July 13, 2017: Development
https://www.readbyqxmd.com/read/28705792/deletion-of-fstl1-follistatin-like-1-from-the-endocardial-endothelial-lineage-causes-mitral-valve-disease
#8
Stuti Prakash, Luis J J Borreguero, Marc Sylva, Lorena Flores Ruiz, Fereshte Rezai, Quinn D Gunst, José-Luis de la Pompa, Jan M Ruijter, Maurice J B van den Hoff
OBJECTIVE: Fstl1 (Follistatin-like 1) is a secreted protein that is expressed in the atrioventricular valves throughout embryonic development, postnatal maturation, and adulthood. In this study, we investigated the loss of Fstl1 in the endocardium/endothelium and their derived cells. APPROACH AND RESULTS: We conditionally ablated Fstl1 from the endocardial lineage using a transgenic Tie2-Cre mouse model. These mice showed a sustained Bmp and Tgfβ signaling after birth...
July 13, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28704415/c-elegans-sma-10-regulates-bmp-receptor-trafficking
#9
Ryan J Gleason, Mehul Vora, Ying Li, Nanci S Kane, Kelvin Liao, Richard W Padgett
Signal transduction of the conserved transforming growth factor-β (TGFβ) family signaling pathway functions through two distinct serine/threonine transmembrane receptors, the type I and type II receptors. Endocytosis orchestrates the assembly of signaling complexes by coordinating the entry of receptors with their downstream signaling mediators. Recently, we showed that the C. elegans type I bone morphogenetic protein (BMP) receptor SMA-6, part of the TGFβ family, is recycled through the retromer complex while the type II receptor, DAF-4 is recycled in a retromer-independent, ARF-6 dependent manner...
2017: PloS One
https://www.readbyqxmd.com/read/28704388/the-mir-23a-27a-24-2-microrna-cluster-buffers-transcription-and-signaling-pathways-during-hematopoiesis
#10
Jeffrey L Kurkewich, Justin Hansen, Nathan Klopfenstein, Helen Zhang, Christian Wood, Austin Boucher, Joseph Hickman, David E Muench, H Leighton Grimes, Richard Dahl
MicroRNA cluster mirn23a has previously been shown to promote myeloid development at the expense of lymphoid development in overexpression and knockout mouse models. This polarization is observed early in hematopoietic development, with an increase in common lymphoid progenitors (CLPs) and a decrease in all myeloid progenitor subsets in adult bone marrow. The pool size of multipotential progenitors (MPPs) is unchanged; however, in this report we observe by flow cytometry that polarized subsets of MPPs are changed in the absence of mirn23a...
July 13, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28703293/bmp-and-tgf%C3%AE-signaling-regulate-the-formation-of-m%C3%A3-ller-glia-derived-progenitor-cells-in-the-avian-retina
#11
Levi Todd, Isabella Palazzo, Natalie Squires, Ninoshka Mendonca, Andy J Fischer
Müller glia-derived progenitor cells (MGPCs) have the capability to regenerate neurons in the retinas of different vertebrate orders. The formation of MGPCs is regulated by a network of cell-signaling pathways. The purpose of this study was to investigate how BMP/Smad1/5/8- and TGFβ/Smad2/3-signaling are coordinated to influence the formation of MGPCs in the chick model system. We find that pSmad1/5/8 is selectively up-regulated in the nuclei of Müller glia following treatment with BMP4, FGF2, or NMDA-induced damage, and this up-regulation is blocked by a dorsomorphin analogue DMH1...
July 13, 2017: Glia
https://www.readbyqxmd.com/read/28700594/hierarchical-patterning-modes-orchestrate-hair-follicle-morphogenesis
#12
James D Glover, Kirsty L Wells, Franziska Matthäus, Kevin J Painter, William Ho, Jon Riddell, Jeanette A Johansson, Matthew J Ford, Colin A B Jahoda, Vaclav Klika, Richard L Mort, Denis J Headon
Two theories address the origin of repeating patterns, such as hair follicles, limb digits, and intestinal villi, during development. The Turing reaction-diffusion system posits that interacting diffusible signals produced by static cells first define a prepattern that then induces cell rearrangements to produce an anatomical structure. The second theory, that of mesenchymal self-organisation, proposes that mobile cells can form periodic patterns of cell aggregates directly, without reference to any prepattern...
July 2017: PLoS Biology
https://www.readbyqxmd.com/read/28697500/cx43-and-smad-mediated-tgf-%C3%AE-bmp-signaling-pathway-promotes-cartilage-differentiation-of-bone-marrow-mesenchymal-stem-cells-and-inhibits-osteoblast-differentiation
#13
Ya-Dong Zhang, Shi-Chang Zhao, Zhong-Sheng Zhu, Yi-Fei Wang, Jian-Xiang Liu, Zhi-Cai Zhang, Feng Xue
BACKGROUND/AIMS: The aim of this study was to investigate the influence of Cx43- and Smad-mediated TGF-β/BMP signaling pathway on the differentiation of bone marrow mesenchymal stem cells (BMSCs) into cartilage and inhibition of ossification. METHODS: BMSCs of Wistar rats were cultured and assigned into 5 groups for transfection with adenoviruses. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting were employed to detect mRNA and protein expressions of target genes...
July 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28695967/expression-of-the-alk1-family-of-type-i-bmp-admp-receptors-during-gastrula-stages-in-xenopus-embryos
#14
Avi Leibovich, Herbert Steinbeißer, Abraham Fainsod
Multiple members of the transforming growth factor beta (TGFβ) family of secreted factors play central inductive and patterning roles during embryogenesis. During gastrulation in vertebrates, the bone morphogenetic protein (BMP) sub-family is linked to formation of the embryonic organizer, Spemann's organizer in Xenopus, and dorsal-ventral mesoderm patterning. Our knowledge regarding the BMP receptors mediating this signaling is still very incomplete. The BMPR1A (ALK3) and BMPR1B (ALK6) receptors are known to mediate the BMP4 signal...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28694257/bmp-signaling-regulates-satellite-cell-dependent-postnatal-muscle-growth
#15
Amalia Stantzou, Elija Schirwis, Sandra Swist, Sonia Alonso-Martin, Ioanna Polydorou, Faouzi Zarrouki, Etienne Mouisel, Cyriaque Beley, Anaïs Julien, Fabien Le Grand, Luis Garcia, Céline Colnot, Carmen Birchmeier, Thomas Braun, Markus Schuelke, Frédéric Relaix, Helge Amthor
Postnatal growth of skeletal muscle largely depends on the expansion and differentiation of resident stem cells, the so-called satellite cells. Here we demonstrate that postnatal satellite cells express components of the Bone Morphogenetic Protein (BMP) signaling machinery. Overexpression of Noggin in postnatal mice, to antagonize BMP ligands, or satellite cell specific knock-out of BMP transmembrane receptor Alk3, or overexpression of inhibitory SMAD6 decreased satellite cell proliferation and accretion during myofiber growth and ultimately retarded muscle growth...
July 10, 2017: Development
https://www.readbyqxmd.com/read/28688217/yes-associated-protein-1-promotes-the-differentiation-and-mineralization-of-cementoblast
#16
Beining Yang, Hualing Sun, Fangfang Song, Yanru Wu, Jiawei Wang
Yes-associated protein 1 (YAP1) transcriptional coactivator is a mediator of mechanosensitive signaling. Cementum, which covers the tooth root surface, continuously senses external mechanical stimulation. Cementoblasts are responsible for the mineralization and maturation of the cementum. However, the effect of YAP1 on cementoblast differentiation remains largely unknown. In this study, we initially demonstrated that YAP1 overexpression enhanced the mineralization ability of cementoblasts. YAP1 upregulated the mRNA and protein expression of several cementogenesis markers, such as alkaline phosphatase (ALP), runt-related transcription factor 2 (Runx2), osteocalcin (OCN), and dentin matrix acidic phosphoprotein 1 (DMP1)...
July 8, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28687190/a-synthetic-bmp-2-mimicking-peptide-induces-glioblastoma-stem-cell-differentiation
#17
Elena Rampazzo, Monica Dettin, Francesca Maule, Alessandra Scabello, Luisa Calvanese, Gabriella D'Auria, Lucia Falcigno, Elena Porcù, Annj Zamuner, Alessandro Della Puppa, Daniele Boso, Giuseppe Basso, Luca Persano
BACKGROUND: Glioblastoma (GBM) is the most aggressive type of primary brain tumor, characterized by the intrinsic resistance to chemotherapy due to the presence of a highly aggressive Cancer Stem Cell (CSC) sub-population. In this context, Bone Morphogenetic Proteins (BMPs) have been demonstrated to induce CSC differentiation and to sensitize GBM cells to treatments. METHODS: The BMP-2 mimicking peptide, named GBMP1a, was synthesized on solid-phase by Fmoc chemistry...
July 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28684627/inwardly-rectifying-potassium-channels-regulate-dpp-release-in-the-drosophila-wing-disc
#18
Giri Raj Dahal, Sarala Joshi Pradhan, Emily Anne Bates
Loss of embryonic ion channel function leads to morphological defects, but the underlying reason for these defects remains elusive. Here, we show that inwardly-rectifying potassium (Irk) channels regulate release of a Drosophila bone morphogenetic protein (BMP/Dpp) in the developing fly wing and this is necessary for developmental signaling. Inhibition of Irk channels decreases the incidence of distinct Dpp-GFP release events above baseline fluorescence while leading to broader distribution of Dpp-GFP. Work by others in different cell types show Irk channels regulate peptide release by modulating membrane potential and calcium levels...
July 6, 2017: Development
https://www.readbyqxmd.com/read/28684382/a-regulatory-role-of-androgen-in-ovarian-steroidogenesis-by-rat-granulosa-cells
#19
Toru Hasegawa, Yasuhiko Kamada, Takeshi Hosoya, Shiho Fujita, Yuki Nishiyama, Nahoko Iwata, Yuji Hiramatsu, Fumio Otsuka
Excess androgen and insulin-like growth factor (IGF)-I in the ovarian follicle has been suggested to be involved in the pathophysiology of polycystic ovary syndrome (PCOS). Here we investigated the impact of androgen and IGF-I on the regulatory mechanism of ovarian steroidogenesis using rat primary granulosa cells. It was revealed that androgen treatment with dihydrotestosterone (DHT) amplified progesterone synthesis in the presence of FSH and IGF-I, whereas it had no significant effect on estrogen synthesis by rat granulosa cells...
July 3, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28681971/growth-plate-expression-profiling-large-and-small-breed-dogs-provide-new-insights-in-endochondral-bone-formation
#20
Michelle Teunissen, Frank M Riemers, Dik van Leenen, Marian J A Groot Koerkamp, Björn P Meij, Jacqueline Alblas, Louis C Penning, Alberto Miranda-Bedate, Marianna A Tryfonidou
The difference in the adult height of mammals, and hence in endochondral bone formation, is not yet fully understood and may serve to identify targets for bone and cartilage regeneration. In line with this hypothesis, the intra-species disparity between the adult height of Great Danes and Miniature Poodles was investigated at a transcriptional level. Microarray analysis of the growth plate of 5 Great Danes and 5 Miniature Poodles revealed 2981 unique genes that were differentially expressed, including many genes with an unknown role in skeletal development...
July 6, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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