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https://www.readbyqxmd.com/read/29352270/non-canonical-wnt-induces-chondrocyte-de-differentiation-through-frizzled-6-and-dvl-2-b-raf-camkii%C3%AE-syndecan-4-axis
#1
Zhe Xie, Mostafa Khair, Irfan Shaukat, Patrick Netter, Didier Mainard, Lydia Barré, Mohamed Ouzzine
Dysregulation of Wnt signaling has been implicated in developmental defects and in the pathogenesis of many diseases such as osteoarthritis; however, the underlying mechanisms are poorly understood. Here, we report that non-canonical Wnt signaling induced loss of chondrocyte phenotype through activation of Fz-6/DVL-2/SYND4/CaMKIIα/B-raf/ERK1/2 cascade. We show that in response to Wnt-3a, Frizzled 6 (Fz-6) triggers the docking of CaMKIIα to syndecan 4 (SYND4) and that of B-raf to DVL-2, leading to the phosphorylation of B-raf by CaMKIIα and activation of extracellular signal-regulated kinase 1 and 2 (ERK1/2) signaling, which leads to chondrocyte de-differentiation...
January 19, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29344156/effects-of-syndecan-1-on-the-expression-of-syntenin-and-the-migration-of-u251-glioma-cells
#2
Jun Chen, Jun Tang, Wei Chen, Yang Gao, Yang He, Qiang Zhang, Qishan Ran, Fang Cao, Shengtao Yao
Glioma is the most frequently occuring primary brain tumor. Syndecan-1 (SDC1) expression is related to poor prognosis of numerous human malignancies including glioma. Syndecan binding protein (SDCBP) is an important partner for SDC1. The present study investigated whether SDC1 and SDCBP are expressed in glioma and their functions on glioma cell migration. An immunohistochemical assay revealed that SDC1 and SDCBP were expressed and were positively related to malignant level of glioma (SDC1, rs=0.576, P=0.001; SDCBP, rs=0...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344147/systematic-analysis-of-the-molecular-mechanism-of-microrna-124-in-hepatoblastoma-cells
#3
Guiming Wang, Hong Liu, Zhigang Wei, Hongyan Jia, Yu Liu, Jiansheng Liu
The present study aimed to identify the molecular mechanisms of microRNA-124 (miRNA-124/miR-124) in hepatoblastoma. The GSE6207 microarray dataset, obtained from the Gene Expression Omnibus database, included samples extracted from HepG2 cells transfected with miR-124 duplex (the experimental group) or negative control (the control group) at 4, 8, 16, 24, 32, 72 and 120 h after transfection. Differentially expressed genes (DEGs) were screened between the two groups. miR-124 activity was inferred based on the expression of its target genes...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29340529/association-between-syndecan-1-and-renal-function-in-adolescents-with-excess-weight-evidence-of-subclinical-kidney-disease-and-endothelial-dysfunction
#4
Z M R M Saboia, G C Meneses, A M C Martins, E F Daher, G B Silva Junior
Excess weight (overweight and obesity) is associated with kidney and cardiovascular disease. The aim of this study was to investigate the association between syndecan-1 and renal function among adolescents with excess weight. A total of 56 students from a public school at Fortaleza, CE, Brazil, were investigated. The adolescents were submitted to anthropometric evaluation, including weight, height, blood pressure and body mass index. Blood and urine samples were collected for the determination of serum lipids (total cholesterol, high density lipoprotein cholesterol, low density lipoprotein cholesterol, triglycerides), and the endothelial injury biomarker syndecan-1...
January 11, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29340066/clinicopathological-and-prognostic-significance-of-sdc1-overexpression-in-breast-cancer
#5
Xiangrong Cui, Xuan Jing, Qin Yi, Chunlan Long, Jie Tian, Jing Zhu
Background: Breast cancer is the leading cause of cancer death among global women, and its early diagnosis and treatment are very urgent. Syndecan-1 (SDC1) is a heparin sulfate proteoglycan, which has been linked with the prognosis and treatment response in a various tumor type. To investigate whether SDC1 can serve as a prognostic indictor in breast cancer, bioinformatic analyses were performed in the present study. Methods: SDC1 expression was assessed using Oncomine analysis...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29338146/the-effect-of-various-doses-of-infusion-solutions-on-the-endothelial-glycocalyx-layer-in-laparoscopic-cholecystectomy-patients
#6
Matija Belavić, Vlatka Sotošek Tokmadžić, Elizabeta Fišić, Antonija Brozovic Krijan, Nedjeljko Strikić, Mirjana Lončarić Katušin, Josip Žunić
BACKGROUND: The endothelial glycocalyx is located on the luminal side of blood vessels and maintains vessel integrity. This study analysed how various dosages of infusion affected the secretion of atrial natriuretic peptide (ANP) and potential glycocalyx damage in patients undergoing laparoscopic cholecystectomy. We hypothesised that the liberal administration of Ringer's solution during the operation can cause iatrogenic hypervolemia with releasing of ANP and glycocalyx damage. METHODS: The study included 90 patients with American Society of Anesthesiologists' (ASA) class I and II, in good cardiopulmonary health, who were assigned to one of three groups: Restrictive group, which received 1 ml/kg/hr intraoperatively and six hours postoperatively; Low liberal group, which received 5 ml/kg/hr of Ringer's solution intraoperatively and six hours postoperatively and High liberal group, which received 15 ml/kg/hr intraoperatively and 10 ml/kg/hr six hours postoperatively...
January 16, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29337920/acute-traumatic-endotheliopathy-in-isolated-severe-brain-injury-and-its-impact-on-clinical-outcome
#7
Venencia Albert, Arulselvi Subramanian, Deepak Agrawal, Hara Prasad Pati, Siddhartha Datta Gupta, Asok Kumar Mukhopadhyay
STUDY DESIGN: Prospective observational cohort. OBJECTIVE: To investigate the difference in plasma levels of syndecan-1 (due to glycocalyx degradation) and soluble thrombomodulin (due to endothelial damage) in isolated severe traumatic brain injury (TBI) patients with/without early coagulopathy. A secondary objective was to compare the effects of the degree of TBI endotheliopathy on hospital mortality among patients with TBI-associated coagulopathy (TBI-AC). METHODS: Data was prospectively collected on isolated severe TBI (sTBI) patients with Glasgow Coma Scale (GCS) ≤8 less than 12 h after injury admitted to a level I trauma centre...
January 16, 2018: Medical Sciences: Open Access Journal
https://www.readbyqxmd.com/read/29337052/sweet-yet-underappreciated-proteoglycans-and-extracellular-matrix-remodeling-in-heart-disease
#8
REVIEW
Geir Christensen, Kate M Herum, Ida G Lunde
Extracellular matrix remodeling is extensive in several heart diseases and hampers cardiac filling, often leading to heart failure. Proteoglycans have over the last two decades emerged as molecules with important roles in matrix remodeling and fibrosis in the heart. Here we discuss and review current literature on proteoglycans that have been studied in cardiac remodeling. The small leucine rich proteoglycans (SLRPs) are located within the extracellular matrix and are organizers of the matrix structure. Membrane-bound proteoglycans, such as syndecans and glypicans, act as receptors and direct cardiac fibroblast signaling...
January 11, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29327601/syndecan-1-as-a-biomarker-for-sepsis-survival-after-major-abdominal-surgery
#9
Maximilian S Holzmann, Martin S Winkler, Mike S Strunden, Jakob R Izbicki, Gerhard Schoen, Gillis Greiwe, Hans O Pinnschmidt, Annika Poppe, Bernd Saugel, Guenter Daum, Alwin E Goetz, Kai Heckel
AIM: Sepsis is a serious complication following surgery and identification of patients at risk is of high importance. Syndecan-1 (sSDC1) levels are known to be elevated during sepsis. MATERIALS & METHODS: Fifty-five patients scheduled for major abdominal surgery were prospectively included and sSDC1 concentrations were measured during hospital stay. RESULTS: Patients with postoperative sepsis showed a continued increase of sSDC1 levels and exhibited higher median sSDC1 concentrations at day 1 compared with nonseptic patients 90...
January 12, 2018: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29322326/heparan-sulfate-accumulation-and-perlecan-hspg2-up-regulation-in-tumour-tissue-predict-low-relapse-free-survival-for-patients-with-glioblastoma
#10
Galina M Kazanskaya, Alexandra Y Tsidulko, Alexander M Volkov, Roman S Kiselev, Anastasia V Suhovskih, Vyacheslav V Kobozev, Alexei S Gaytan, Svetlana V Aidagulova, Alexei L Krivoshapkin, Elvira V Grigorieva
Glycosaminoglycans are major components of brain extracellular matrix (ECM), although heparan sulfate (HS) contribution in brain physiology and carcinogenesis remains underinvestigated. This study examined HS content and distribution in glioblastoma multiforme (GBM) tissues in the context of potential molecular mechanisms underlying its deregulation in brain tumours. Totally, 42 tissue samples and paraffin-embedded tissues for 31 patients with different prognosis were investigated. HS expression was demonstrated in 50-55% of the GBM tumours by immunohistochemistry (IHC), while almost no HS content was detected in the surrounding paratumourous brain tissues...
January 10, 2018: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29310785/isolation-and-functional-analysis-of-syndecans
#11
Pyong Woo Park
Syndecans comprise a major family of cell surface heparan sulfate proteoglycans (HSPGs). Syndecans are composed of sulfated glycosaminoglycans (GAGs), heparan sulfate (HS) or both HS and chondroitin sulfate (CS), attached covalently to core proteins. Syndecans regulate many cellular processes, such as adhesion, proliferation, and migration. Syndecans bind and regulate molecules primarily through their HS chains, but do not bind to all HS/heparin-binding molecules. Furthermore, mice ablated for the syndecan-1 or -4 gene do not show major developmental abnormalities, but they do show striking pathological phenotypes when challenged with infectious or inflammatory stimuli and conditions, suggesting that certain functions of syndecans are specific and cannot be compensated for by other syndecans or other HSPGs...
2018: Methods in Cell Biology
https://www.readbyqxmd.com/read/29309212/development-of-bead-based-multiplexed-immunoassay-for-evaluation-of-midkine-syndecan-1-and-angptl4-in-patient-serum
#12
Imad Tarhoni, Cristina L Fhied, Mark Pool, Michael J Liptay, Philip Bonomi, Christopher W Seder, Jeffrey A Borgia
BACKGROUND: Angiogenesis is associated with tumor progression in a range of malignancies. Herein, we develop custom immunobead assays for several mechanistically-important targets and evaluated these against sera from cohorts of non-small cell lung cancer (NSCLC) patients. METHODS: Antigen "capture" antibodies for midkine, syndecan-1, and ANGPTL4 were independently conjugated to MagPlex® Microspheres using standard carbodiimide/NHS-based chemistry. These reagents served as the basis for quantitative sandwich assay assembly using biotinylated detection antibodies and R-phycoerythrin-conjugated streptavidin reporter system...
January 8, 2018: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/29301568/surfen-a-proteoglycan-binding-agent-reduces-inflammation-but-inhibits-remyelination-in-murine-models-of-multiple-sclerosis
#13
Jordan R Warford, Anna-Claire Lamport, Derek R Clements, Alicia Malone, Barry E Kennedy, Youra Kim, Shashi A Gujar, David W Hoskin, Alexander S Easton
Proteoglycans are promising therapeutic targets in Multiple Sclerosis (MS), because they regulate many aspects of the immune response. This was studied using surfen, an agent that binds both heparan sulphate proteoglycans (HSPGs) and chondroitin sulphate proteoglycans (CSPGs). Initial cell culture work on bone marrow derived macrophages (BMDMs) found that surfen reduced concentrations of the chemokines CCL2, CCL4 and CCL5, with reduced messenger (m)RNA expression for Tumor Necrosis Factor, IL-6, IL-1β and inducible nitric oxide synthase...
January 4, 2018: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/29287059/microfluidics-a-high-throughput-system-for-the-assessment-of-the-endotheliopathy-of-trauma-and-the-effect-of-timing-of-plasma-administration-on-ameliorating-shock-associated-endothelial-dysfunction
#14
Lawrence N Diebel, Jonathan V Martin, David M Liberati
BACKGROUND: Early resuscitation after trauma-hemorrhagic shock (HS) with plasma rather than crystalloid may ameliorate systemic endothelial cell (EC) injury and dysfunction (endotheliopathy of trauma [EOT]). We postulated that endothelial lined microfluidic networks would be a useful platform to study the endothelial cell activation/injury under flow conditions to mimic HS. We then used the microfluidic system to further characterize the protective effects and optimal timing of plasma infusion on the development of "EOT" in our model...
December 28, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29279011/recombinant-extracellular-matrix-protein-fragments-support-human-embryonic-stem-cell-chondrogenesis
#15
Aixin Cheng, Stuart Alan Cain, Pinyuan Tian, Andrew K Baldwin, Paweena Uppanan, Cay M Kielty, Susan J Kimber
We previously developed a 14-day culture protocol under potentially GMP, chemically defined conditions, to generate chondro-progenitors from human embryonic stem cells (hESCs). In vivo work has confirmed the cartilage repair capacity of these cells in a nude rat osteochondral defect model. Aiming to enhance hESC-chondrogenesis we screened a range of extracellular matrix (ECM) molecules for their ability to support differentiation of hESCs towards chondrocytes. We identified two novel ECM protein fragments that supported hESC-chondrogenesis: Fibronectin III (fibronectin 7-14 protein fragments including the RGD domain, syndecan binding domain and heparin binding domain); fibrillin-1 (FBN1) fragment PF8 (encoded by exons 30-38, residues 1238-1605, which contains the RGD motif but not heparin binding site)...
December 27, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29277722/the-pathogenic-roles-of-heparan-sulfate-deficiency-in-hereditary-multiple-exostoses
#16
REVIEW
Maurizio Pacifici
Heparan sulfate (HS) is an essential component of cell surface and matrix proteoglycans (HS-PGs) that include syndecans and perlecan. Because of their unique structural features, the HS chains are able to specifically interact with signaling proteins -including bone morphogenetic proteins (BMPs)- via their HS-binding domain, regulating protein availability, distribution and action on target cells. Hereditary Multiple Exostoses (HME) is a rare pediatric disorder linked to germline heterozygous loss-of-function mutations in EXT1 or EXT2 that encode Golgi-resident glycosyltransferases responsible for HS synthesis, resulting in a systemic HS deficiency...
December 22, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29276918/-analysis-of-urine-proteome-in-patients-with-postinfarction-cardiosclerosis-combined-with-hypertensive-disease-for-assessing-endothelial-dysfunction
#17
V P Masenko, L K Pastushkova, D N Kashirina, I V Dobrokhotov, A S Kononikhin, E S Tiys, V A Ivanisenko, O M Veselova, O N Vyborov, A M Nosovskiy, I N Goncharov, E N Nikolaev, I M Larina
In our study urine protein composition of 18 healthy volunteers was compared with that of 18 patients with ischemic heart disease and concomitant hypertension. Liquid chromatography-mass-spectrometry (LC-MS) analysis of the second fraction of morning urine was carried out using nano-line high performance liquid chromatograph and hybrid mass spectrometer. The analysis revealed 23 proteins expressed in the endothelium, according to the information contained in the database Bgee, and 49 proteins, with direct functional link with the processes in the endothelium in the reconstruction of associative networks using ANDSystem program...
November 2017: Kardiologiia
https://www.readbyqxmd.com/read/29261771/endotheliopathy-is-associated-with-higher-levels-of-cell-free-dna-following-major-trauma-a-prospective-observational-study
#18
David N Naumann, Jon Hazeldine, Robert J Dinsdale, Jon R Bishop, Mark J Midwinter, Paul Harrison, Sam D Hutchings, Janet M Lord
BACKGROUND: Cell free deoxyribonucleic acid (cfDNA) has been proposed as a biomarker of secondary complications following trauma. Raised thrombomodulin and syndecan-1 levels have been used to indicate endotheliopathy, and are associated with inflammation, coagulopathy, and mortality. The current study aimed to analyse the association between cfDNA and biomarkers of endotheliopathy in a cohort of trauma patients, and whether raised levels of cfDNA were associated with poorer clinical outcomes...
2017: PloS One
https://www.readbyqxmd.com/read/29248646/symptom-onset-in-aortic-stenosis-relation-to-sex-differences-in-left-ventricular-remodeling
#19
Anvesha Singh, Daniel C S Chan, John P Greenwood, Dana K Dawson, Piotr Sonecki, Kai Hogrefe, Damian J Kelly, Vijay Dhakshinamurthy, Chim C Lang, Jeffery P Khoo, David Sprigings, Richard P Steeds, Ruiqi Zhang, Ian Ford, Michael Jerosch-Herold, Jing Yang, Zhuyin Li, Leong L Ng, Gerry P McCann
OBJECTIVES: The aim of this study was to establish sex differences in remodeling and outcome in aortic stenosis (AS) and their associations with biomarkers of myocardial fibrosis. BACKGROUND: The remodeling response and timing of symptoms is highly variable in AS, and sex plays an important role. METHODS: A total of 174 patients (133 men, mean age 66.2 ± 13.3 years) with asymptomatic moderate to severe AS underwent comprehensive stress cardiac magnetic resonance imaging, transthoracic echocardiography, and biomarker analysis (matrix metalloproteinase [MMP]-2, -3, -7, -8, and -9; tissue inhibitor matrix metalloproteinases-1 and -4; syndecan-1 and -4; and N-terminal pro-B-type natriuretic peptide), and were followed up at 6-month intervals...
December 8, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29242634/extracellular-matrix-alterations-after-blood-instillation-in-tunica-albuginea-of-rats
#20
David J Cohen, André V Oliveira, Théresè R Theodoro, Giuliana Petri, Carina M Melo, Renan P Cavalheiro, Helena B Nader, Ana M Mader, Maria A S Pinhal, Sidney Glina
The cause of Peyronie's disease (PD) is still not completely understood. The objective of this study, therefore, was to analyze the histological and biochemical alterations that occur after the instillation of blood in the tunica albuginea (TA) of rats with an emphasis on the remodeling process of ECM. Thirty male Wistar rats were divided into 4 groups: two control groups with instillation of distilled water in TA followed by penectomy after 15 days or 45 days, respectively and two experimental groups with instillation of blood in TA followed by penectomy after 15 days or 45 days, respectively...
December 15, 2017: International Journal of Impotence Research
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