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BMP AND smad

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https://www.readbyqxmd.com/read/28646109/bone-morphogenetic-protein-bmp-9-and-bmp10-enhance-tumor-necrosis-factor-%C3%AE-induced-monocyte-recruitment-to-the-vascular-endothelium-mainly-via-activin-receptor-like-kinase-2
#1
Claudia-Gabriela Mitrofan, Sarah L Appleby, Gerard B Nash, Ziad Mallat, Edwin R Chilvers, Paul D Upton, Nicholas W Morrell
Bone morphogenetic proteins 9 and 10 (BMP9/BMP10) are circulating cytokines with important roles in endothelial homeostasis. The aim of this study was to investigate the roles of BMP9 and BMP10 in mediating monocyte-endothelial interactions using an in vitro flow adhesion assay. Herein, we report that while BMP9/BMP10 alone had no effect on monocyte recruitment, at higher concentrations both cytokines synergised with Tumor necrosis factor-α (TNFα) to increase recruitment to the vascular endothelium. The BMP9/BMP10-mediated increase in monocyte recruitment in the presence of TNFα was associated with upregulated expression levels of E-selectin, VCAM-1 and ICAM-1 on endothelial cells...
June 23, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28642261/transforming-growth-factor-beta-stimulates-smad1-5-signaling-in-pulmonary-artery-smooth-muscle-cells-and-fibroblasts-of-the-newborn-mouse-through-alk1
#2
Huili Zhang, Lili Du, Ying Zhong, Kathleen C Flanders, Jesse D Roberts
The intracellular signaling mechanisms through which TGFβ regulates pulmonary development are incompletely understood. Canonical TGFβ signaling involves Smad2/3 phosphorylation, Smad2/3·Smad4 complex formation and nuclear localization, and gene regulation. Here we show that physiologically relevant TGFβ1 levels also stimulate Smad1/5 phosphorylation, typically a mediator of bone morphogenetic protein (BMP) signaling, in mouse pup pulmonary artery smooth muscle cells (mPASMC) and lung fibroblasts and other interstitial lung cell lines...
June 22, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28641928/bmpr1a-is-a-major-type-1-bmp-receptor-for-bmp-smad-signaling-during-skull-development
#3
Haichun Pan, Honghao Zhang, Ponnu Abraham, Yoshihiro Komatsu, Karen Lyons, Vesa Kaartinen, Yuji Mishina
Craniosynostosis is caused by premature fusion of one or more sutures in an infant skull, resulting in abnormal facial features. The molecular and cellular mechanisms by which genetic mutations cause craniosynostosis are incompletely characterized, and many of the causative genes for diverse types of syndromic craniosynostosis have not yet been identified. We previously demonstrated that augmentation of BMP signaling mediated by a constitutively active BMP type IA receptor (ca-BmpR1A) in neural crest cells (ca1A hereafter) causes craniosynostosis and superimposition of heterozygous null mutation of Bmpr1a rescues premature suture fusion (ca1A;1aH hereafter)...
June 19, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28641655/-il-1%C3%AE-treated-bone-marrow-mesenchymal-stem-cells-enhances-osteogenetic-potential-via-nf-%C3%AE%C2%BAb-pathway
#4
Wei Ye, Xiao-Ming Fei, Yu Tang, Xin-Xin Xu, Yan Zhu
Obsjective:To investigate the effects of differentaction time of IL-1β on the osteogenic capacity of bone marrow mensenchymal cells(BMMSC) and the role of nuclear factor-κB (NF-kB) pathway. METHODS: BMMSC isolated from normal donors was treated with IL-1β for 1 or 7 days, respectively. Alkaline phosphatase (ALP) and alizarin red(AR) stainings were used to detect the osteogenic differentiation potential of BMMSC. The mRNA expression of EphB4, IGF-1 and OPG in BMMSC was measured by real-time PCR...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28627372/regulatory-role-of-melatonin-and-bmp-4-in-prolactin-production-by-rat-pituitary-lactotrope-gh3-cells
#5
Kanako Ogura-Ochi, Satoshi Fujisawa, Nahoko Iwata, Motoshi Komatsubara, Yuki Nishiyama, Naoko Tsukamoto-Yamauchi, Kenichi Inagaki, Jun Wada, Fumio Otsuka
The effects of melatonin on prolactin production and its regulatory mechanism remain uncertain. We investigated the regulatory role of melatonin in prolactin production using rat pituitary lactotrope GH3 cells by focusing on the bone morphogenetic protein (BMP) system. Melatonin receptor activation, induced by melatonin and its receptor agonist ramelteon, significantly suppressed basal and forskolin-induced prolactin secretion and prolactin mRNA expression in GH3 cells. The melatonin MT2 receptor was predominantly expressed in GH3 cells, and the inhibitory effects of melatonin on prolactin production were reversed by treatment with the receptor antagonist luzindole, suggesting functional involvement of MT2 action in the suppression of prolactin release...
June 13, 2017: Peptides
https://www.readbyqxmd.com/read/28602823/structural-basis-for-specific-interaction-of-tgf%C3%AE-signaling-regulators-sara-endofin-with-hd-ptp
#6
Deepankar Gahloth, Colin Levy, Louise Walker, Lydia Wunderley, A Paul Mould, Sandra Taylor, Philip Woodman, Lydia Tabernero
SARA and endofin are endosomal adaptor proteins that drive Smad phosphorylation by ligand-activated transforming growth factor β/bone morphogenetic protein (TGFβ/BMP) receptors. We show in this study that SARA and endofin also recruit the tumor supressor HD-PTP, a master regulator of endosomal sorting and ESCRT-dependent receptor downregulation. High-affinity interactions occur between the SARA/endofin N termini, and the conserved hydrophobic region in the HD-PTP Bro1 domain that binds CHMP4/ESCRT-III. CHMP4 engagement is a universal feature of Bro1 proteins, but SARA/endofin binding is specific to HD-PTP...
May 30, 2017: Structure
https://www.readbyqxmd.com/read/28595186/age-related-insulin-like-growth-factor-binding-protein-4-overexpression-inhibits-osteogenic-differentiation-of-rat-mesenchymal-stem-cells
#7
Jinhui Wu, Chao Wang, Xiong Miao, Yungang Wu, Jiabin Yuan, Muchen Ding, Jingfeng Li, Zhicai Shi
BACKGROUND/AIMS: Insulin-like growth factor binding proteins (IGFBP) play important roles in bone metabolism. IGFBP4 is involved in senescent-associated phenomena in mesenchymal stem cells (MSCs). The goal of the present study was to determine whether age-related IGFBP4 overexpression is associated with the impaired osteogenic differentiation potential of aged bone marrow derived MSCs. METHODS: MSCs were isolated from Sprague-Dawley rats aged 3-26 months. The bone morphogenetic protein (BMP)-2-induced osteogenic differentiation of rat MSCs was assessed by analyzing the expression levels of osteoblast marker genes [runt-related transcription factor 2 (RUNX2), alkaline phosphatase (ALP), and osteocalcin (OC)], ALP activity and calcification...
June 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28585096/cellular-citrate-levels-establish-a-regulatory-link-between-energy-metabolism-and-the-hepatic-iron-hormone-hepcidin
#8
Ana Rita da Silva, Joana Neves, Katarzyna Mleczko-Sanecka, Amol Tandon, Sven W Sauer, Matthias W Hentze, Martina U Muckenthaler
Expression of the hepatic peptide hormone hepcidin responds to iron levels via BMP/SMAD signaling, to inflammatory cues via JAK/STAT signaling, to the nutrient-sensing mTOR pathway, as well as to proliferative signals and gluconeogenesis. Here, we asked the question whether hepcidin expression is altered by metabolites generated by intermediary metabolism. To identify such metabolites, we took advantage of a comprehensive RNAi screen, which revealed effectors involved in citrate metabolism. We show that the inhibition of citrate-consuming enzymes increases hepcidin mRNA expression in primary murine hepatocytes...
June 5, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28584575/melanin-extract-from-gallus-gallus-domesticus-promotes-proliferation-and-differentiation-of-osteoblastic-mg-63-cells-via-bone-morphogenetic-protein-2-signaling
#9
Han-Seok Yoo, Kang-Hyun Chung, Kwon-Jai Lee, Dong-Hee Kim, Jeung Hee An
BACKGROUND/OBJECTIVES: Gallus gallus domesticus (GD) is a natural mutant breed of chicken in Korea with an atypical characterization of melanin in its tissue. This study investigated the effects of melanin extracts of GD on osteoblast differentiation and inhibition of osteoclast formation. MATERIALS/METHODS: The effects of the melanin extract of GD on human osteoblast MG-63 cell differentiation were examined by evaluating cell viability, osteoblast differentiation, and expression of osteoblast-specific transcription factors such as bone morphogenetic protein 2 (BMP-2), small mothers against decapentaplegic homologs 5 (SMAD5), runt-related transcription factor 2 (RUNX2), osteocalcin and type 1 collagen (COL-1) by reverse transcription-polymerase chain reaction and western blotting analysis...
June 2017: Nutrition Research and Practice
https://www.readbyqxmd.com/read/28578352/endogenous-parathyroid-hormone-promotes-fracture-healing-by-increasing-expression-of-bmpr2-through-camp-pka-creb-pathway-in-mice
#10
Wei Zhou, Lipeng Yu, Jin Fan, Bowen Wan, Tao Jiang, Jian Yin, Yao Huang, Qingqing Li, Guoyong Yin, Zhaoxing Hu
BACKGROUND/AIMS: Endogenous parathyroid hormone (PTH) plays an important role in fracture healing. This study investigated whether endogenous PTH regulates fracture healing by bone morphogenetic protein (BMP) and/or the transforming growth factor-β (TGF-β) signaling pathway. METHODS: Eight-week-old wild-type (WT) and PTH-knockout (PTH KO) male mice were selected, and models of open right-femoral fracture were constructed. Fracture healing and callus characteristics of mice in the two groups were compared by X-ray, micro-computed tomography, histological, and immunohistochemical examinations...
June 5, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28574598/integrin-linked-kinase-regulates-bone-formation-by-controlling-cytoskeletal-organization-and-modulating-bmp-and-wnt-signaling-in-osteoprogenitors
#11
Marian Dejaeger, Anna-Marei Böhm, Naomi Dirckx, Joke Devriese, Elena Nefyodova, Ruben Cardoen, René St-Arnaud, Jos Tournoy, Frank P Luyten, Christa Maes
Cell-matrix interactions constitute a fundamental aspect of skeletal cell biology and play essential roles in bone homeostasis. These interactions are primarily mediated by transmembrane integrin receptors, which mediate cell adhesion and transduce signals from the extracellular matrix to intracellular responses via various downstream effectors, including integrin-linked kinase (ILK). ILK functions as adaptor protein at focal adhesion sites, linking integrins to the actin cytoskeleton, and has been reported to act as a kinase phosphorylating signaling molecules such as GSK-3β and Akt...
June 2, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28549065/c-elegans-daf-16-foxo-interacts-with-tgf-%C3%A3-bmp-signaling-to-induce-germline-tumor-formation-via-mtorc1-activation
#12
Wenjing Qi, Yijian Yan, Dietmar Pfeifer, Erika Donner V Gromoff, Yimin Wang, Wolfgang Maier, Ralf Baumeister
Activation of the FOXO transcription factor DAF-16 by reduced insulin/IGF signaling (IIS) is considered to be beneficial in C. elegans due to its ability to extend lifespan and to enhance stress resistance. In the germline, cell-autonomous DAF-16 activity prevents stem cell proliferation, thus acting tumor-suppressive. In contrast, hypodermal DAF-16 causes a tumorous germline phenotype characterized by hyperproliferation of the germline stem cells and rupture of the adjacent basement membrane. Here we show that cross-talk between DAF-16 and the transforming growth factor ß (TGFß)/bone morphogenic protein (BMP) signaling pathway causes germline hyperplasia and results in disruption of the basement membrane...
May 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28548630/tenogenic-differentiation-of-human-embryonic-stem-cells
#13
Tina P Dale, Shazia Mazher, William R Webb, Jing Zhou, Nicola Maffulli, G-Q Chen, Alicia J El Haj, Nicholas R Forsyth
Tendon healing is complex to manage because of the limited regeneration capacity of tendon tissue; stem cell-based tissue engineering approaches may provide alternative healing strategies. We sought to determine whether human embryonic stem cells (hESC) could be induced to differentiate into tendon-like cells by the addition of exogenous bone morphogenetic protein (BMP)12 (growth differentiation factor(GDF)7) and BMP13 (GDF6). hESC (SHEF-1) were maintained with or without BMP12/13 supplementation, or supplemented with BMP12/13 and the SMAD signalling cascade blocking agent, dorsomorphin...
May 26, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28542453/extracellular-calcium-promotes-bone-formation-from-bone-marrow-mesenchymal-stem-cells-by-amplifying-the-effects-of-bmp-2-on-smad-signalling
#14
Rubén Aquino-Martínez, Natalia Artigas, Beatriz Gámez, José Luis Rosa, Francesc Ventura
Understanding the molecular events that regulate osteoblast differentiation is essential for the development of effective approaches to bone regeneration. In this study, we analysed the osteoinductive properties of extracellular calcium in bone marrow-derived mesenchymal stem cell (BM-MSC) differentiation. We cultured BM-MSCs in 3D gelatin scaffolds with Ca2+ and BMP-2 as osteoinductive agents. Early and late osteogenic gene expression and bone regeneration in a calvarial critical-size defect model demonstrate that extracellular Ca2+ enhances the effects of BMP-2 on Osteocalcin, Runx2 and Osterix expression and promotes bone regeneration in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28494020/pannexin-3-regulates-proliferation-and-differentiation-of-odontoblasts-via-its-hemichannel-activities
#15
Tsutomu Iwamoto, Takashi Nakamura, Masaki Ishikawa, Keigo Yoshizaki, Asuna Sugimoto, Hiroko Ida-Yonemochi, Hayato Ohshima, Masahiro Saito, Yoshihiko Yamada, Satoshi Fukumoto
Highly coordinated regulation of cell proliferation and differentiation contributes to the formation of functionally shaped and sized teeth; however, the mechanism underlying the switch from cell cycle exit to cell differentiation during odontogenesis is poorly understood. Recently, we identified pannexin 3 (Panx3) as a member of the pannexin gap junction protein family from tooth germs. The expression of Panx3 was predominately localized in preodontoblasts that arise from dental papilla cells and can differentiate into dentin-secreting odontoblasts...
2017: PloS One
https://www.readbyqxmd.com/read/28489849/utilizing-bmp-2-muteins-for-treatment-of-multiple-myeloma
#16
Axel Seher, Charlotte Lagler, Thorsten Stühmer, Urs Dietmar Achim Müller-Richter, Alexander Christian Kübler, Walter Sebald, Thomas Dieter Müller, Joachim Nickel
Multiple myeloma (MM) represents a haematological cancer characterized by the pathological hyper proliferation of antibody-producing B-lymphocytes. Patients typically suffer from kidney malfunction and skeletal disorders. In the context of MM, the transforming growth factor β (TGFβ) member Activin A was recently identified as a promoter of both accompanying symptoms. Because studies have shown that bone morphogenetic protein (BMP)-2-mediated activities are counteracted by Activin A, we analysed whether BMP2, which also binds to the Activin A receptors ActRII and ActRIIB but activates the alternative SMAD-1/5/8 pathway, can be used to antagonize Activin A activities, such as in the context of MM...
2017: PloS One
https://www.readbyqxmd.com/read/28489579/transforming-growth-factor-%C3%AE-a-potential-biomarker-and-therapeutic-target-of-ventricular-remodeling
#17
REVIEW
Yuan Ma, Hai Zou, Xing-Xing Zhu, Jie Pang, Qiang Xu, Qin-Yang Jin, Ya-Hui Ding, Bing Zhou, Dong-Sheng Huang
Transforming growth factor β (TGF-β) is a multifunctional cytokine that is synthesized by many types of cells and regulates the cell cycle. Increasing evidence has led to TGF-β receiving increased and deserved attention in recent years because it may play a potentially novel and critical role in the development and progression of myocardial fibrosis and the subsequent progress of ventricular remodeling (VR). Numerous studies have highlighted a crucial role of TGF-β in VR and suggest potential therapeutic targets of the TGF-β signaling pathways for VR...
April 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28476867/regulatory-mechanisms-of-metamorphic-neuronal-remodeling-revealed-through-a-genome-wide-modifier-screen-in-drosophila-melanogaster
#18
Dahong Chen, Tingting Gu, Tom N Pham, Montgomery J Zachary, Randall S Hewes
During development, neuronal remodeling shapes neuronal connections to establish fully mature and functional nervous systems. Our previous studies have shown that the RNA binding factor alan shepard (shep) is an important regulator of neuronal remodeling during metamorphosis in Drosophila melanogaster, and loss of shep leads to smaller soma size and fewer neurites in a stage-dependent manner. To shed light on the mechanisms by which shep regulates neuronal remodeling, we conducted a genetic modifier screen for suppressors of shep-dependent wing expansion defects and cellular morphological defects in a set of peptidergic neurons, the bursicon neurons, that promote post-eclosion wing expansion...
May 5, 2017: Genetics
https://www.readbyqxmd.com/read/28469774/effects-of-altered-cxcl12-cxcr4-axis-on-bmp2-smad-runx2-osterix-axis-and-osteogenic-gene-expressions-during-osteogenic-differentiation-of-mscs
#19
Zhanghua Li, Wei Wang, Haijia Xu, Yu Ning, Weijun Fang, Wen Liao, Ji Zou, Yi Yang, Ningsheng Shao
This study investigated the effects of altered CXCL12/CXCR4 axis on the bone morphogenetic protein 2 (BMP-2)/Smad/runt-related transcription factor 2 (Runx2)/Osterix (Osx) signal axis and osteogenic gene expression during osteogenic differentiation of mesenchymal stem cells (MSCs), to gain understanding of the link between migration and osteogenic differentiation signal axis and MSCs osteogenic differentiation mechanisms. The pHBAd-MCMV- CXCL12-GFP vector (Ad-CXCL12) was constructed and quantitative polymerase chain reaction (qPCR)/western blotting used to determine CXCL12 expression in Ad-CXCL12-transfected MSCs...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28468752/usp4-inhibits-smad4-monoubiquitination-and-promotes-activin-and-bmp-signaling
#20
Fangfang Zhou, Feng Xie, Ke Jin, Zhengkui Zhang, Marcello Clerici, Rui Gao, Maarten van Dinther, Titia K Sixma, Huizhe Huang, Long Zhang, Peter Ten Dijke
SMAD4 is a common intracellular effector for TGF-β family cytokines, but the mechanism by which its activity is dynamically regulated is unclear. We demonstrated that ubiquitin-specific protease (USP) 4 strongly induces activin/BMP signaling by removing the inhibitory monoubiquitination from SMAD4. This modification was triggered by the recruitment of the E3 ligase, SMURF2, to SMAD4 following ligand-induced regulatory (R)-SMAD-SMAD4 complex formation. Whereas the interaction of the negative regulator c-SKI inhibits SMAD4 monoubiquitination, the ligand stimulates the recruitment of SMURF2 to the c-SKI-SMAD2 complex and triggers c-SKI ubiquitination and degradation...
June 1, 2017: EMBO Journal
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