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https://www.readbyqxmd.com/read/28075408/time-course-exo-metabolomic-profiling-in-the-green-marine-macroalga-ulva-chlorophyta-for-identification-of-growth-phase-dependent-biomarkers
#1
Taghreed Alsufyani, Anne Weiss, Thomas Wichard
The marine green macroalga Ulva (Chlorophyta) lives in a mutualistic symbiosis with bacteria that influence growth, development, and morphogenesis. We surveyed changes in Ulva's chemosphere, which was defined as a space where organisms interact with each other via compounds, such as infochemicals, nutrients, morphogens, and defense compounds. Thereby, Ulva mutabilis cooperates with bacteria, in particular, Roseovarius sp. strain MS2 and Maribacter sp. strain MS6 (formerly identified as Roseobacter sp. strain MS2 and Cytophaga sp...
January 10, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28069946/wnt5a-is-essential-for-hippocampal-dendritic-maintenance-and-spatial-learning-and-memory-in-adult-mice
#2
Chih-Ming Chen, Lauren L Orefice, Shu-Ling Chiu, Tara A LeGates, Samer Hattar, Richard L Huganir, Haiqing Zhao, Baoji Xu, Rejji Kuruvilla
Stability of neuronal connectivity is critical for brain functions, and morphological perturbations are associated with neurodegenerative disorders. However, how neuronal morphology is maintained in the adult brain remains poorly understood. Here, we identify Wnt5a, a member of the Wnt family of secreted morphogens, as an essential factor in maintaining dendritic architecture in the adult hippocampus and for related cognitive functions in mice. Wnt5a expression in hippocampal neurons begins postnatally, and its deletion attenuated CaMKII and Rac1 activity, reduced GluN1 glutamate receptor expression, and impaired synaptic plasticity and spatial learning and memory in 3-mo-old mice...
January 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28068429/functional-requirements-for-heparan-sulfate-biosynthesis-in-morphogenesis-and-nervous-system-development-in-c-elegans
#3
Cassandra R Blanchette, Andrea Thackeray, Paola N Perrat, Siegfried Hekimi, Claire Y Bénard
The regulation of cell migration is essential to animal development and physiology. Heparan sulfate proteoglycans shape the interactions of morphogens and guidance cues with their respective receptors to elicit appropriate cellular responses. Heparan sulfate proteoglycans consist of a protein core with attached heparan sulfate glycosaminoglycan chains, which are synthesized by glycosyltransferases of the exostosin (EXT) family. Abnormal HS chain synthesis results in pleiotropic consequences, including abnormal development and tumor formation...
January 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28063668/activation-of-cd137-signaling-accelerates-vascular-calcification-in-vivo-and-vitro
#4
Yao Chen, Abdul Basit Bangash, Juan Song, Wei Zhong, Cuiping Wang, Chen Shao, Zhongqun Wang, Jinchuan Yan
OBJECTIVES: Vascular calcification is a characteristic feature of atherosclerosis and is considered as an independent predictor of cardiovascular risk. CD137 signaling has previously shown to be involved in atherosclerosis. However, the possible role of CD137 signaling in regulation of vascular calcification has not been reported. In the present study, we investigated the effect of CD137 signaling on vascular calcification in ApoE(-/-) mice and in vascular smooth muscle cells (VSMCs) of mice...
December 30, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28062508/arterial-calcification-in-diabetes-mellitus-preclinical-models-and-translational-implications
#5
John N Stabley, Dwight A Towler
Diabetes mellitus increasingly afflicts our aging and dysmetabolic population. Type 2 diabetes mellitus and the antecedent metabolic syndrome represent the vast majority of the disease burden-increasingly prevalent in children and older adults. However, type 1 diabetes mellitus is also advancing in preadolescent children. As such, a crushing wave of cardiometabolic disease burden now faces our society. Arteriosclerotic calcification is increased in metabolic syndrome, type 2 diabetes mellitus, and type 1 diabetes mellitus-impairing conduit vessel compliance and function, thereby increasing the risk for dementia, stroke, heart attack, limb ischemia, renal insufficiency, and lower extremity amputation...
December 22, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28045022/jak-stat-controls-organ-size-and-fate-specification-by-regulating-morphogen-production-and-signalling
#6
Carles Recasens-Alvarez, Ana Ferreira, Marco Milán
A stable pool of morphogen-producing cells is critical for the development of any organ or tissue. Here we present evidence that JAK/STAT signalling in the Drosophila wing promotes the cycling and survival of Hedgehog-producing cells, thereby allowing the stable localization of the nearby BMP/Dpp-organizing centre in the developing wing appendage. We identify the inhibitor of apoptosis dIAP1 and Cyclin A as two critical genes regulated by JAK/STAT and contributing to the growth of the Hedgehog-expressing cell population...
January 3, 2017: Nature Communications
https://www.readbyqxmd.com/read/28035075/the-hippo-signaling-pathway-provides-novel-anti-cancer-drug-targets
#7
REVIEW
June Sung Bae, Sun Mi Kim, Ho Lee
The Hippo signaling pathway plays a crucial role in cell proliferation, apoptosis, differentiation, and development. Major effectors of the Hippo signaling pathway include the transcriptional co-activators Yes-associated protein 1 (YAP) and WW domain-containing transcription regulator protein 1 (TAZ). The transcriptional activities of YAP and TAZ are affected by interactions with proteins from many diverse signaling pathways as well as responses to the external environment. High YAP and TAZ activity has been observed in many cancer types, and functional dysregulation of Hippo signaling enhances the oncogenic properties of YAP and TAZ and promotes cancer development...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/28034699/playing-with-the-cell-cycle-to-build-the-spinal-cord
#8
REVIEW
Angie Molina, Fabienne Pituello
A fundamental issue in nervous system development and homeostasis is to understand the mechanisms governing the balance between the maintenance of proliferating progenitors versus their differentiation into post-mitotic neurons. Accumulating data suggest that the cell cycle and core regulators of the cell cycle machinery play a major role in regulating this fine balance. Here, we focus on the interplay between the cell cycle and cellular and molecular events governing spinal cord development. We describe the existing links between the cell cycle and interkinetic nuclear migration (INM)...
December 26, 2016: Developmental Biology
https://www.readbyqxmd.com/read/28031228/reprogramming-medulloblastoma-propagating-cells-via-combined-antagonism-of-sonic-hedgehog-and-cxcr4
#9
Stacey A Ward, Nicole M Warrington, Sara Taylor, Najla Kfoury, Jingqin Luo, Joshua B Rubin
The CXCR4 chemokine and sonic hedgehog (SHH) morphogen pathways are validated therapeutic targets in many cancer types, including medulloblastoma. However, single agent treatments with SHH or CXCR4 antagonists have not proven efficacious in clinical trials to date. Here we show that dual inhibition of the SHH and CXCR4 pathways exerts potent antitumor effects in a murine model of SHH-subtype medulloblastoma. This therapeutic synergy resulted in suppression of tumor-propagating cell function and correlated with increased histone H3 lysine 27 trimethylation within the promoters of stem cell genes, resulting in their decreased expression...
December 28, 2016: Cancer Research
https://www.readbyqxmd.com/read/28025991/early-cellular-responses-of-bmscs-genetically-modified-with-bfgf-bmp2-co-cultured-with-ligament-fibroblasts-in-a-three-dimensional-model-in%C3%A2-vitro
#10
Bin Li, Ramesh Kumar Jha, Yong-Jian Qi, Qu-Bo Ni, Hui Wang, Biao Chen, Liao-Bin Chen
Currently, a number of strategies including the implantation of bone marrow-derived mesenchymal stem cells (BMSCs) and growth factors have been developed to regenerate the tendon-to-bone interface after performing anterior cruciate ligament reconstruction. However, the mechanisms behind the interactions of the implanted BMSCs and tendon cells remain to be elucidated. The aim of this study was to evaluate the early cellular responses of BMSCs genetically modified with basic growth factor growth factor (bFGF)/bone morphogenic protein 2 (BMP2) and ligament fibroblasts in a three-dimensional co-culture model...
November 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28025825/ultrastructural-analysis-of-sequential-cyprinid-herpesvirus-3-morphogenesis-in%C3%A2-vitro
#11
S J Monaghan, S M Bergmann, K D Thompson, L Brown, T Herath, J Del-Pozo, A Adams
Cyprinid herpesvirus 3 (CyHV-3) is an alloherpesvirus, and it is the aetiological agent of koi herpesvirus disease. Although the complex morphogenic stages of the replication cycle of CyHV-3 were shown to resemble that of other members of the Herpesvirales, detailed analysis of the sequence and timing of these events was not definitively determined. This study describes these features through a time course using cyprinid cell cultures (KF-1 and CCB) infected with CyHV-3 (KHV isolate, H361) and analysed by transmission electron microscopy...
December 27, 2016: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28024586/microstructural-control-of-modular-peptide-release-from-microporous-biphasic-calcium-phosphate
#12
Samantha J Polak, Jae Sung Lee, William L Murphy, Solène Tadier, Laurent Grémillard, Ian V Lightcap, Amy J Wagoner Johnson
Drug release from tissue scaffolds is commonly controlled by using coatings and carriers, as well as by varying the binding affinity of molecules being released. This paper considers modulating synthetic peptide incorporation and release through the use of interconnected microporosity in biphasic calcium phosphate (BCP) and identifies the microstructural characteristics important to the release using experiments and a model of relative diffusivity. First, the release of three modular peptides designed to include an osteocalcin-inspired binding sequence based on bone morphogenic protein-2 (BMP-2) was compared and one was selected for further study...
March 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28011630/a-polycycstin-type-transient-receptor-potential-trp-channel-that-is-activated-by-atp
#13
David Traynor, Robert R Kay
ATP and ADP are ancient extra-cellular signalling molecules that in Dictyostelium amoebae cause rapid, transient increases in cytosolic calcium due to an influx through the plasma membrane. This response is independent of hetero-trimeric G-proteins, the putative IP3 receptor IplA and all P2X channels. We show, unexpectedly, that it is abolished in mutants of the polycystin-type transient receptor potential channel, TrpP. Responses to the chemoattractants cyclic-AMP and folic acid are unaffected in TrpP mutants...
December 23, 2016: Biology Open
https://www.readbyqxmd.com/read/28005004/functional-evolution-of-a-morphogenetic-gradient
#14
Chun Wai Kwan, Jackie Gavin-Smyth, Edwin L Ferguson, Urs Schmidt-Ott
Bone Morphogenetic Proteins (BMPs) pattern the dorsal-ventral axis of bilaterian embryos; however, their roles in the evolution of body plan are largely unknown. We examined their functional evolution in fly embryos. BMP signaling specifies two extraembryonic tissues, the serosa and amnion, in basal-branching flies such as Megaselia abdita, but only one, the amnioserosa, in Drosophila melanogaster. The BMP signaling dynamics are similar in both species until the beginning of gastrulation, when BMP signaling broadens and intensifies at the edge of the germ rudiment in Megaselia, while remaining static in Drosophila...
December 22, 2016: ELife
https://www.readbyqxmd.com/read/28002369/transient-local-bone-remodeling-effects-of-rhbmp-2-in-an-ovine-interbody-spine-fusion-model
#15
Hyun W Bae, Vikas V Patel, Zeeshan M Sardar, Jeffrey M Badura, Ben B Pradhan, Howard B Seim, A Simon Turner, Jeffrey M Toth
BACKGROUND: Recombinant human bone morphogenetic protein-2 (rhBMP-2) is a powerful osteoinductive morphogen capable of stimulating the migration of mesenchymal stem cells (MSCs) to the site of implantation and inducing the proliferation and differentiation of these MSCs into osteoblasts. Vertebral end-plate and vertebral body resorption has been reported after interbody fusion with high doses of rhBMP-2. In this study, we investigated the effects of 2 rhBMP-2 doses on peri-implant bone resorption and bone remodeling at 7 time points in an end-plate-sparing ovine interbody fusion model...
December 21, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28001342/triggering-mechanisms-and-inflammatory-effects-of-combustion-exhaust-particles-with-implication-for-carcinogenesis
#16
J Øvrevik, M Refsnes, M Låg, B Brinchmann, P E Schwarze, J A Holme
A number of biological responses may contribute to the carcinogenic effects of combustion-derived particulate matter (CPM). Here, we focus on mechanisms that trigger CPM-induced pro-inflammatory responses. Inflammation has both genotoxic as well as non-genotoxic implications and is considered to play a central role in development of various health outcomes associated with CPM exposure, including cancer. Chronic, low-grade inflammation may cause DNA damage through a persistent increased level of reactive oxygen species (ROS) produced and released by activated immune cells...
December 21, 2016: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27994786/bone-morphogenic-protein-is-a-viable-adjunct-for-fusion-in-minimally-invasive-transforaminal-lumbar-interbody-fusion
#17
M Mashfiqul Arafin Siddiqui, Ana Rosario P Sta Ana, William Yeo, Wai-Mun Yue
STUDY DESIGN: Comparison of prospectively collected data of patients undergoing minimally invasive surgery transforaminal lumbar interbody fusion (MIS-TLIF) with and without recombinant human bone morphogenic protein 2 (BMP). PURPOSE: To compare the clinical, radiological outcome and complications of patients undergoing MIS-TLIF with and without BMP. OVERVIEW OF LITERATURE: BMP is an effective fusion enhancer with potential complications. Direct comparison of MIS-TLIF with and without BMP is limited to retrospective studies with short follow-up...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27994126/waiting-in-the-wings-what-can-we-learn-about-gene-co-option-from-the-diversification-of-butterfly-wing-patterns
#18
REVIEW
Chris D Jiggins, Richard W R Wallbank, Joseph J Hanly
A major challenge is to understand how conserved gene regulatory networks control the wonderful diversity of form that we see among animals and plants. Butterfly wing patterns are an excellent example of this diversity. Butterfly wings form as imaginal discs in the caterpillar and are constructed by a gene regulatory network, much of which is conserved across the holometabolous insects. Recent work in Heliconius butterflies takes advantage of genomic approaches and offers insights into how the diversification of wing patterns is overlaid onto this conserved network...
February 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/27984541/crosstalk-between-notch-and-sonic-hedgehog-signaling-in-a-mouse-model-of-amyotrophic-lateral-sclerosis
#19
Xiaoxing Ma, Anna Drannik, Fan Jiang, Randy Peterson, John Turnbull
The developmental morphogen Sonic hedgehog (Shh) may continue to play a sustaining role in adult motor neurons, of potential relevance to motor neuron diseases including amyotrophic lateral sclerosis. The Shh signaling pathway is incompletely understood and interactions with other signaling pathways are possible. We focus here on Notch, and first show that there is an almost linear reduction in light output from a Gli reporter in Shh Light II cells in the presence of increasing concentrations of the Notch inhibitor DAPT (r=0...
December 15, 2016: Neuroreport
https://www.readbyqxmd.com/read/27981201/data-supporting-regulating-temporospatial-dynamics-of-morphogen-for-structure-formation-of-the-lacrimal-gland-by-chitosan-biomaterials
#20
Ya-Chuan Hsiao, Tsung-Lin Yang
The lacrimal gland is responsible for tear synthesis and secretion, and is derived from the epithelia of ocular surface and generated by branching morphogenesis. The dataset presented in this article is to support the research results of the effect of chitosan biomaterials on facilitating the structure formation of the lacrimal gland by regulating temporospatial dynamics of morphogen. The embryonic lacrimal gland explants were used as the standard experimental model for investigating lacrimal gland branching morphogenesis...
February 2017: Data in Brief
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