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https://www.readbyqxmd.com/read/28229387/the-effects-of-cerium-valence-states-at-cerium-oxide-coatings-on-the-responses-of-bone-mesenchymal-stem-cells-and-macrophages
#1
Mingyu You, Kai Li, Youtao Xie, Liping Huang, Xuebin Zheng
Ideal orthopedic coatings should trigger good osteogenic response and limited inflammatory response. The cerium valence states in ceria are associated with their anti-oxidative activity and anti-inflammatory property. In the study, we prepared two kinds of plasma sprayed CeO2 coatings with different Ce(4+) concentrations to investigate the effects of Ce valence states on the response of bone mesenchymal stem cells (BMSCs) and macrophage RAW264.7. Both the coatings (CeO2-A and CeO2-B) were characterized via XRD, SEM, and X-ray photoelectron spectroscopy...
February 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28228184/a-novel-approach-for-pathway-analysis-of-gwas-data-highlights-role-of-bmp-signaling-and-muscle-cell-differentiation-in-colorectal-cancer-susceptibility-erratum
#2
Aniket Mishra, Stuart MacGregor
The publishers regret to announce that the affiliation for the above paper was incorrectly inserted. The correct affiliation is below: Aniket Mishra1, Genetics and Epidemiology of Colorectal Cancer Consortium (GECCO) and the Colorectal Cancer Family Registry (CCFR), and Stuart MacGregor1 1 Statistical Genetics, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.
February 23, 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28219948/genomic-integration-of-wnt-%C3%AE-catenin-and-bmp-smad1-signaling-coordinates-foregut-and-hindgut-transcriptional-program
#3
Mariana L Stevens, Praneet Chaturvedi, Scott A Rankin, Melissa Macdonald, Sajjeev Jagannathan, Masashi Yukawa, Artem Barski, Aaron M Zorn
Digestive system development is orchestrated by combinatorial signaling interactions between endoderm and mesoderm, but how these signals are integrated in the genome is poorly understood. Here we identified the transcriptomes of Xenopus foregut and hindgut progenitors, which are conserved with mammals. Using RNA-seq and ChIP-seq we show that BMP/Smad1 regulates dorsal-ventral gene expression in both the endoderm and mesoderm, whereas Wnt/β-catenin acts as a genome-wide toggle between foregut and hindgut programs...
February 20, 2017: Development
https://www.readbyqxmd.com/read/28219352/retinoic-acid-promotes-expression-of-germline-specific-genes-in-chicken-blastoderm-cells-by-stimulating-smad1-5-phosphorylation-in-a-feeder-free-culture-system
#4
Xiaochuan Tang, Shiyong Xu, Hongpeng Zhang, Qing Chen, Rongyang Li, Wangjun Wu, Minli Yu, Honglin Liu
BACKGROUND: Producing transgenic chickens with chicken blastodermal cells (cBCs) is inefficient due to the extremely low germline transmission capacity of cBCs. As chicken primordial germ cells (PGCs) have been reported as an efficient method for producing transgenic chickens, the inefficiency of cBCs could potentially be resolved by inducing them to differentiate into germ cells. However, whether chemical inducers are able to enhance cBCs germline competence in vitro is unknown and the molecular mechanisms of differentiation of chicken pluripotent cells into germ cells are poorly understood...
February 20, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/28215684/expression-of-genes-involved-in-bmp-and-estrogen-signaling-and-ampk-production-can-be-important-factors-affecting-total-number-of-antral-follicles-in-ewes
#5
Golshan Foroughinia, Ali Fazileh, Shahin Eghbalsaied
Follicular growth and ovulation of healthy oocytes is a complicated process which is regulated by several endocrine and paracrine factors as well as cross-talk between the oocyte and its surrounding somatic cells. This study compared the expression profile of some candidate genes involved in BMP signaling as well as estrogen and AMPK production in cumulus-oocyte complex (COC) of small and large antral follicles and their associated somatic cell layers in ovaries from ewes with high- and low-antral follicle count (AFC)...
March 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/28207159/the-critical-role-of-the-znf217-oncogene-in-promoting-breast-cancer-metastasis-to-the-bone
#6
Aurélie Bellanger, Caterina F Donini, Julie A Vendrell, Jonathan Lavaud, Irma Machuca-Gayet, Maëva Ruel, Julien Vollaire, Evelyne Grisard, Balázs Győrffy, Ivan Bièche, Olivier Peyruchaud, Jean-Luc Coll, Isabelle Treilleux, Véronique Maguer-Satta, Véronique Josserand, Pascale A Cohen
Bone metastasis affects more than 70% of patients with advanced breast cancer. However, the molecular mechanisms underlying this process remain unclear. Based on the analysis of clinical datasets, and in vitro and in vivo experiments, we report that the ZNF217 oncogene is a crucial mediator and indicator of bone metastasis. Patients with high ZNF217 mRNA expression levels in primary breast tumours had a higher risk of developing bone metastases. MDA-MB-231 breast cancer cells stably transfected with ZNF217 (MDA-MB-231-ZNF217) displayed the dysregulated expression of a set of genes with bone homing and metastasis characteristics, which overlapped with two previously described "osteolytic bone metastasis" gene signatures, while also highlighting the bone morphogenetic protein (BMP) pathway...
February 16, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28205638/effects-of-mir-146a-on-the-osteogenesis-of-adipose-derived-mesenchymal-stem-cells-and-bone-regeneration
#7
Qing Xie, Wei Wei, Jing Ruan, Yi Ding, Ai Zhuang, Xiaoping Bi, Hao Sun, Ping Gu, Zi Wang, Xianqun Fan
Increasing evidence has indicated that bone morphogenetic protein 2 (BMP2) coordinates with microRNAs (miRNAs) to form intracellular networks regulating mesenchymal stem cells (MSCs) osteogenesis. This study aimed to identify specific miRNAs in rat adipose-derived mesenchymal stem cells (ADSCs) during BMP2-induced osteogenesis, we selected the most significantly down-regulated miRNA, miR-146a, to systematically investigate its role in regulating osteogenesis and bone regeneration. Overexpressing miR-146a notably repressed ADSC osteogenesis, whereas knocking down miR-146a greatly promoted this process...
February 16, 2017: Scientific Reports
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
#8
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/28202671/extracellular-regulation-of-bmp-signaling-welcome-to-the-matrix
#9
REVIEW
Georg Sedlmeier, Jonathan P Sleeman
Given its importance in development and homeostasis, bone morphogenetic protein (BMP) signaling is tightly regulated at the extra- and intracellular level. The extracellular matrix (ECM) was initially thought to act as a passive mechanical barrier that sequesters BMPs. However, a new understanding about how the ECM plays an instructive role in regulating BMP signaling is emerging. In this mini-review, we discuss various ways in which the biochemical and physical properties of the ECM regulate BMP signaling.
February 8, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28198109/progenitors-in-peripheral-nerves-launch-heterotopic-ossification
#10
Elizabeth A Olmsted-Davis, Elizabeth A Salisbury, Diana Hoang, Eleanor L Davis, ZaWaunyka Lazard, Corinne Sonnet, Thomas A Davis, Jonathan A Forsberg, Alan R Davis
Studies presented here, using a murine model of bone morphogenetic protein type 2 (BMP2)-induced heterotopic ossification (HO) show that the protein initiates HO by signaling through progenitors in the endoneurium of peripheral nerves. In the mouse, these cells were identified in the endoneurium one day after BMP2 induction using antibody against phosphoSMAD (PS) 1, 5, and 8. Studies conducted in a tracking mouse that contains a tamoxifen-regulated Wnt1-Cre recombinase crossed with a td Tomato red (TR) reporter (Wnt1(CreErt) :Ai9Tm) confirmed their neural origin...
February 15, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28197209/effect-of-bmp-2-delivery-mode-on-osteogenic-differentiation-of-stem-cells
#11
Taekhee Jung, John Hwan Lee, Soonjung Park, Yong-Jin Kim, Joseph Seo, Hye-Eun Shim, Ki-Suk Kim, Hyon-Seok Jang, Hyung-Min Chung, Seong-Geun Oh, Sung-Hwan Moon, Sun-Woong Kang
Differentiation of stem cells is an important strategy for regeneration of defective tissue in stem cell therapy. Bone morphogenetic protein-2 (BMP-2) is a well-known osteogenic differentiation factor that stimulates stem cell signaling pathways by activating transmembrane type I and type II receptors. However, BMPs have a very short half-life and may rapidly lose their bioactivity. Thus, a BMP delivery system is required to take advantage of an osteoinductive effect for osteogenic differentiation. Previously, BMP delivery has been designed and evaluated for osteogenic differentiation, focusing on carriers and sustained release system for delivery of BMPs...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28196860/the-nclx-type-na-ca-2-exchanger-ncx-9-is-required-for-patterning-of-neural-circuits-in-caenorhabditis-elegans
#12
Vishal Sharma, Soumitra Roy, Israel Sekler, Damien M O'Halloran
NCLX is a Na(+)/Ca(2+) exchanger that uses energy stored in the transmembrane sodium gradient to facilitate the exchange of sodium ions for ionic calcium. Mammals have a single NCLX, which has been shown to function primarily at the mitochondrion and is an important regulator of neuronal physiology by contributing to neurotransmission and synaptic plasticity. The role of NCLX in developmental cell patterning, for example, in neural circuits, is largely unknown. Here we describe a novel role for the Caenorhabditis elegans NCLX-type protein, NCX-9, in neural circuit formation...
February 14, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28196803/neural-tube-closure-cellular-molecular-and-biomechanical-mechanisms
#13
REVIEW
Evanthia Nikolopoulou, Gabriel L Galea, Ana Rolo, Nicholas D E Greene, Andrew J Copp
Neural tube closure has been studied for many decades, across a range of vertebrates, as a paradigm of embryonic morphogenesis. Neurulation is of particular interest in view of the severe congenital malformations - 'neural tube defects' - that result when closure fails. The process of neural tube closure is complex and involves cellular events such as convergent extension, apical constriction and interkinetic nuclear migration, as well as precise molecular control via the non-canonical Wnt/planar cell polarity pathway, Shh/BMP signalling, and the transcription factors Grhl2/3, Pax3, Cdx2 and Zic2...
February 15, 2017: Development
https://www.readbyqxmd.com/read/28193855/bmp-singling-controls-buckling-forces-to-modulate-looping-morphogenesis-of-the-gut
#14
Nandan L Nerurkar, L Mahadevan, Clifford J Tabin
Looping of the initially straight embryonic gut tube is an essential aspect of intestinal morphogenesis, permitting proper placement of the lengthy small intestine within the confines of the body cavity. The formation of intestinal loops is highly stereotyped within a given species and results from differential-growth-driven mechanical buckling of the gut tube as it elongates against the constraint of a thin, elastic membranous tissue, the dorsal mesentery. Although the physics of this process has been studied, the underlying biology has not...
February 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28193178/nodal-and-bmp-expression-during-the-transition-to-pentamery-in-the-sea-urchin-heliocidaris-erythrogramma-insights-into-patterning-the-enigmatic-echinoderm-body-plan
#15
Demian Koop, Paula Cisternas, Valerie B Morris, Dario Strbenac, Jean Yee Hwa Yang, Gregory A Wray, Maria Byrne
BACKGROUND: The molecular mechanisms underlying the development of the unusual echinoderm pentameral body plan and their likeness to mechanisms underlying the development of the bilateral plans of other deuterostomes are of interest in tracing body plan evolution. In this first study of the spatial expression of genes associated with Nodal and BMP2/4 signalling during the transition to pentamery in sea urchins, we investigate Heliocidaris erythrogramma, a species that provides access to the developing adult rudiment within days of fertilization...
February 13, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28191670/involvement-of-the-phosphoinositide-3-kinase-akt-signaling-pathway-in-bone-morphogenetic-protein-9-stimulated-osteogenic-differentiation-and-stromal-cell-derived-factor-1-production-in-human-periodontal-ligament-fibroblasts
#16
Kirara Furue, Kotaro Sena, Kenji Sakoda, Toshiaki Nakamura, Kazuyuki Noguchi
Recent studies have shown that bone morphogenetic protein 9 (BMP-9) can induce osteogenic differentiation in human periodontal stem cells and human periodontal ligament fibroblasts (PDLFs). Bone morphogenetic protein 9 may be used in periodontal tissue regeneration because of its potent osteoinductive ability. Human periodontal ligament cells also have been demonstrated to produce stromal cell-derived factor 1 (SDF-1), which is important for stem-cell homing and recruitment to injured sites. In the present study, we examined the involvement of the phosphoinositide 3-kinase (PI3K)/Akt signaling axis in osteogenic differentiation and SDF-1 production in human PDLFs stimulated with BMP-9 in osteogenic medium supplemented with dexamethasone and ascorbic acid...
February 13, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28188849/endocytosis-contributes-to-bmp2-induced-smad-signalling-and-neuronal-growth
#17
Shane V Hegarty, Aideen M Sullivan, Gerard W O'Keeffe
Bone morphogenetic protein 2 (BMP2) is a neurotrophic factor which induces the growth of midbrain dopaminergic (DA) neurons in vitro and in vivo, and its neurotrophic effects have been shown to be dependent on activation of BMP receptors (BMPRs) and Smad 1/5/8 signalling. However, the precise intracellular cascades that regulate BMP2-BMPR-Smad-signalling-induced neurite growth remain unknown. Endocytosis has been shown to regulate Smad 1/5/8 signalling and differentiation induced by BMPs. However, these studies were carried out in non-neural cells...
February 8, 2017: Neuroscience Letters
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
#18
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/28181691/microrna-195-5p-regulates-osteogenic-differentiation-of-periodontal-ligament-cells-under-mechanical-loading
#19
Maolin Chang, Heng Lin, Haidi Fu, Beike Wang, Guangli Han, Mingwen Fan
Osteogenic differentiation and bone formation are tightly regulated by several factors, including microRNAs (miRNAs). However, miRNA expression patterns and function during mechanical loading-induced osteogenic differentiation of human periodontal ligament cells (PDLCs) remain unclear. Here, we investigated the differential expression of miRNA-195-5p in the periodontal tissues of mice under orthodontic mechanical loading and in primary human PDLCs exposed to a simulated tension strain. miR-195-5p was observed to be down-regulated and negatively correlated with osteogenic differentiation...
February 9, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28178531/in%C3%A2-vivo-human-somitogenesis-guides-somite-development-from-hpscs
#20
Haibin Xi, Wakana Fujiwara, Karen Gonzalez, Majib Jan, Simone Liebscher, Ben Van Handel, Katja Schenke-Layland, April D Pyle
Somites form during embryonic development and give rise to unique cell and tissue types, such as skeletal muscles and bones and cartilage of the vertebrae. Using somitogenesis-stage human embryos, we performed transcriptomic profiling of human presomitic mesoderm as well as nascent and developed somites. In addition to conserved pathways such as WNT-β-catenin, we also identified BMP and transforming growth factor β (TGF-β) signaling as major regulators unique to human somitogenesis. This information enabled us to develop an efficient protocol to derive somite cells in vitro from human pluripotent stem cells (hPSCs)...
February 7, 2017: Cell Reports
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