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Tenascin C

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https://www.readbyqxmd.com/read/28531915/bone-marrow-stem-cells-anti-liver-fibrosis-potency-inhibition-of-hepatic-stellate-cells-activity-and-extracellular-matrix-deposition
#1
Ervina Julien Sitanggang, Radiana Dhewayani Antarianto, Sri Widia A Jusman, Jeanne Adiwinata Pawitan, Ahmad Aulia Jusuf
Transplantation of bone marrow derived stem cells (BMSCs) has been reported inhibits liver fibrosis. Several in vitro studies by co-culturing BMSCs and hepatic stellate cells (HSCs) indirectly or directly in 2D models showed inhibition of HSC as the key player in liver fibrosis. In this study, we investigated direct effect of BMSCs on HSCs by co-culturing BMSCs and HSCs in 3D model as it represents the liver microenvironment with intricate cell-cell and cell-matrix interactions. Primary isolated rat HSCs and BMSCs were directly co-cultured at 1:1 ratio with hanging drop method...
May 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28512860/intrinsic-cellular-and-molecular-properties-of-in-vivo-hippocampal-synaptic-plasticity-are-altered-in-the-absence-of-key-synaptic-matrix-molecules
#2
Stephan Jansen, Christine Gottschling, Andreas Faissner, Denise Manahan-Vaughan
Hippocampal synaptic plasticity comprises a key cellular mechanism for information storage. In the hippocampus, both long-term potentiation (LTP) and long-term depression (LTD) are triggered by synaptic Ca(2+) -elevations that are typically mediated by the opening of voltage-gated cation channels, such as N-methyl-D-aspartate receptors (NMDAR), in the postsynaptic density. The integrity of the post-synaptic density is ensured by the extracellular matrix (ECM). Here, we explored whether synaptic plasticity is affected in adult behaving mice that lack the ECM proteins brevican, neurocan, tenascin-C and tenascin-R (TG)...
May 17, 2017: Hippocampus
https://www.readbyqxmd.com/read/28496027/expression-profile-of-matricellular-proteins-in-hypertrophied-right-ventricle-of-monocrotaline-induced-pulmonary-hypertensive-rats
#3
Keisuke Imoto, Muneyoshi Okada, Hideyuki Yamawaki
Matricellular proteins, a non-structural extracellular matrix (ECM) component, bind to and modulate various molecules including growth factor, cytokine, protease, other ECM components and cell membrane receptors. While most matricellular proteins are hardly expressed in normal adult tissue, they are re-expressed in heart tissue during cardiac diseases. The present study aimed to clarify the mRNA expression profile of matricellular proteins [secreted protein acidic and rich in cysteine: SPARC, hevin, thrombospondin (TSP)-1, -2 and -4, CCN1 and 5, tenascin (Tn)C and N, periostin and osteopontin (OPN)] in hypertrophied right ventricle (RV) of monocrotaline (MCT)-induced pulmonary hypertensive rats...
May 11, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28481416/blood-flow-restricted-training-leads-to-myocelullar-macrophage-infiltration-and-upregulation-of-heat-shock-proteins-but-no-apparent-muscle-damage
#4
Jakob L Nielsen, Per Aagaard, Tatyana A Prokhorova, Tobias Nygaard, Rune Dueholm Bech, Charlotte Suetta, Ulrik Frandsen
Previous studies indicate that low-load muscle contractions performed under local blood-flow restriction (BFR) may initially induce muscle damage and stress. However, whether these factors are evoked with longitudinal BFR training remains unexplored at the myocellular level. Two distinct study protocols were conducted (3 wk/1 wk). Subjects performed BFR exercise (100 mmHg, 20%-1RM) to concentric failure (BFRE) (3 wk/1 wk), while controls performed work-matched (LLE)(3 wk) or high-load (HLE; 70%-1RM)(1 wk), free-flow exercise...
May 8, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28481231/zeolite-containing-mixture-supplementation-ameliorated-dextran-sodium-sulfate-induced-colitis-in-mice-by-suppressing-the-inflammatory-bowel-disease-pathway-and-improving-apoptosis-in-colon-mucosa
#5
Weida Lyu, Huijuan Jia, Chuanzong Deng, Kenji Saito, Seigo Yamada, Hisanori Kato
Inflammatory bowel disease (IBD) is induced by multiple environmental factors, and there is still no known treatment capable of curing the disease completely. We propose a zeolite-containing mixture (Hydryeast(®), HY)-a multi-component nutraceutical of which the main ingredients are Azumaceramics (mixture of zeolite and oyster shell burned under high temperature), citric acid, red rice yeast (monascus) and calcium stearate-as a nutraceutical intervention in IBD to ameliorate dextran sodium sulfate (DSS)-induced colitis...
May 6, 2017: Nutrients
https://www.readbyqxmd.com/read/28474313/expression-of-hypoxia-associated-protein-hif-1%C3%AE-in-follicular-thyroid-cancer-is-associated-with-distant-metastasis
#6
Aumayr Klaus, Osmen Fathi, Traub-Weidinger Tatjana, Niederle Bruno, Koperek Oskar
Follicular thyroid carcinomas (FTCs) are the second most common malignant neoplasia of the thyroid and in general its prognosis is quite favorable. However, the occurrence of metastases or non-responsiveness to radioiodine therapy worsens the prognosis considerably. We evaluated immunohistochemically the expression of hypoxia-associated proteins by hypoxia-induced factor 1α (HIF-1α), the stroma-remodeling marker Tenascin C, as well as markers for the epithelial-mesenchymal transition (EMT), namely E-cadherin and slug in a series of 59 sporadic FTCs...
May 4, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28459287/the-effects-of-varying-frequency-and-duration-of-mechanical-stimulation-on-a-tissue-engineered-tendon-construct
#7
Brandon Engebretson, Zachary R Mussett, Vassilios I Sikavitsas
Decellularized, discarded human tissues like the human umbilical vein, have been widely utilized for tissue engineering applications, including tendon grafts. When recellularized, such natural scaffolds, are cultured in 3D dynamic culture environments (bioreactor systems). For tendon tissue engineered grafts, such systems, often employ oscillatory mechanical stimulation in the form uniaxial tensile strain. The three main parameters of such stimulation are frequency, duration and force. In this study we investigated the effects of changing the duration (0...
May 1, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28447755/gene-expression-profile-in-human-induced-pluripotent-stem-cells-chondrogenic-differentiation-in-vitro-part-a
#8
Wiktoria Maria Suchorska, Ewelina Augustyniak, Magdalena Richter, Tomasz Trzeciak
Human induced pluripotent stem cells (hiPSCs) offer promise in regenerative medicine, however more data are required to improve understanding of key aspects of the cell differentiation process, including how specific chondrogenic processes affect the gene expression profile of chondrocyte‑like cells and the relative value of cell differentiation markers. The main aims of the present study were as follows: To determine the gene expression profile of chondrogenic-like cells derived from hiPSCs cultured in mediums conditioned with HC‑402‑05a cells or supplemented with transforming growth factor β3 (TGF‑β3), and to assess the relative utility of the most commonly used chondrogenic markers as indicators of cell differentiation...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447748/tenascin-c-expression-and-its-associated-pathway-in-bmscs-following-co-culture-with-mechanically-stretched-ligament-fibroblasts
#9
Bing Zhao, Mengcai Hu, Huiyan Wu, Chenchen Ren, Jianshe Wang, Shihong Cui
The occurrence of pelvic organ prolapse (POP) is closely associated with alterations in the extracellular matrix proteins of the supporting ligament. Bone marrow mesenchymal stem cells (BMSCs) have the potential to differentiate into a variety of cell types, including osteoblasts, chondroblasts and adipocytes. Therefore, BMSCs have the potential to improve the clinical outcomes of POP. Tenascin‑C is a large glycoprotein that is present in the ECM and is involved in morphogenetic movements, and tissue patterning and repair...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28416488/activation-of-notch-signaling-by-tenascin-c-promotes-growth-of-human-brain-tumor-initiating-cells
#10
Susobhan Sarkar, Reza Mirzaei, Franz J Zemp, Wei Wu, Donna L Senger, Stephen M Robbins, V Wee Yong
Elevated NOTCH signaling is implicated in tumorigenesis. The brain tumor- initiating cells (BTICs) present in malignant glioma exhibit elevated NOTCH activity but the mechanism of this activation is unknown. Here, we provide evidence that tenascin-C (TNC), an extracellular matrix protein prominent in malignant glioma, increases NOTCH activity in BTICs to promote their growth. We demonstrate the proximal localization of TNC and BTICs in human glioblastoma specimens, and in the brains of mice implanted with human BTIC intracranial xenografts...
April 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28415821/deep-sequencing-based-microrna-expression-signatures-in-head-and-neck-squamous-cell-carcinoma-dual-strands-of-pre-mir-150-as-antitumor-mirnas
#11
Keiichi Koshizuka, Nijiro Nohata, Toyoyuki Hanazawa, Naoko Kikkawa, Takayuki Arai, Atsushi Okato, Ichiro Fukumoto, Koji Katada, Yoshitaka Okamoto, Naohiko Seki
We adopted into RNA-sequencing technologies to construct the microRNA (miRNA) expression signature of head and neck squamous cell carcinoma (HNSCC). Our signature revealed that a total of 160 miRNAs (44 upregulated and 116 downregulated) were aberrantly expressed in cancer tissues. Expression of miR-150-5p (guide strand miRNA) and miR-150-3p (passenger strand miRNA) were significantly silenced in cancer tissues, suggesting both miRNAs act as antitumor miRNAs in HNSCC cells. Ectopic expression of mature miRNAs, miR-150-5p and miR-150-3p inhibited cancer cell aggressiveness...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28405594/screening-for-novel-endogenous-inflammatory-stimuli-using-the-secreted-embryonic-alkaline-phosphatase-nf-%C3%AE%C2%BAb-reporter-assay
#12
Lorena Zuliani-Alvarez, Anna M Piccinini, Kim S Midwood
An immune response can be activated by pathogenic stimuli, as well as endogenous danger signals, triggering the activation of pattern recognition receptors and initiating signalling cascades that lead to inflammation. This method uses THP1-Blue™ cells, a human monocytic cell line which contains an embryonic alkaline phosphatase reporter gene allowing the detection of NF-κB-induced transcriptional activation. We validated this protocol by assessing NF-κB activation after stimulation of toll-like receptor 4 (TLR4) by two different agonists: lipopolysaccharide (LPS), derived from the cell wall of Gram negative bacteria, and tenascin-C, an extracellular matrix protein whose expression is induced upon tissue injury...
April 5, 2017: Bio-protocol
https://www.readbyqxmd.com/read/28401805/an-engineered-multiphase-3d-microenvironment-to-ensure-the-controlled-delivery-of-cyclic-strain-and-hgdf-5-for-the-tenogenic-commitment-of-hbmscs
#13
Marco Govoni, Anna Berardi, Claudio Muscari, Roberta Campardelli, Francesca Bonafè, Carlo Guarnieri, Ernesto Reverchon, Emanuele Giordano, Nicola Maffulli, Giovanna Della Porta
At present, injuries or rupture of tendons are treated by surgical repair or conservative approaches with unpredictable clinical outcome. Alternative strategies to repair tendon defects without the undesirable side effects associated with the current options are needed. With this in mind, a tissue engineering approach has gained considerable attention as a promising strategy. Here, we investigated a synthetic 3D microenvironment able to interact with stem cells and inducing, via coupled biochemical and physical signals, their early commitment towards the tenogenic lineage...
April 12, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28384286/t-t-homozygosity-of-the-tenascin-c-gene-polymorphism-rs2104772-negatively-influences-exercise-induced-angiogenesis
#14
Paola Valdivieso, Marco Toigo, Hans Hoppeler, Martin Flück
BACKGROUND: Mechanical stress, including blood pressure related factors, up-regulate expression of the pro-angiogenic extracellular matrix protein tenascin-C in skeletal muscle. We hypothesized that increased capillarization of skeletal muscle with the repeated augmentation in perfusion during endurance training is associated with blood vessel-related expression of tenascin-C and would be affected by the single-nucleotide polymorphism (SNP) rs2104772, which characterizes the non-synonymous exchange of thymidine (T)-to-adenosine (A) in the amino acid codon 1677 of tenascin-C...
2017: PloS One
https://www.readbyqxmd.com/read/28376184/a-plasma-biomarker-panel-to-identify-surgically-resectable-early-stage-pancreatic-cancer
#15
Seetharaman Balasenthil, Ying Huang, Suyu Liu, Tracey Marsh, Jinyun Chen, Sanford A Stass, Debra KuKuruga, Randall Brand, Nanyue Chen, Marsha L Frazier, J Jack Lee, Sudhir Srivastava, Subrata Sen, Ann McNeill Killary
Background: Blood-based biomarkers for early detection of pancreatic ductal adenocarcinoma (PDAC) are urgently needed. Current biomarkers lack high sensitivity and specificity for population screening. The gold-standard biomarker, CA 19-9, also fails to demonstrate the predictive value necessary for early detection. Methods: To validate a functional genomics-based plasma migration signature biomarker panel, plasma tissue factor pathway inhibitor (TFPI), tenascin C (TNC-FN III-C), and CA 19-9 levels were measured by enzyme-linked immunosorbent assays in three early-stage PDAC plasma cohorts, including two independent blinded validation cohorts containing a total of 43 stage I, 163 stage II, 86 chronic pancreatitis, 31 acute biliary obstruction, and 108 controls...
August 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28363952/cd73-derived-adenosine-and-tenascin-c-control-cytokine-production-by-epicardium-derived-cells-formed-after-myocardial-infarction
#16
Julia Hesse, Stella Leberling, Elisabeth Boden, Daniela Friebe, Timo Schmidt, Zhaoping Ding, Peter Dieterich, Andreas Deussen, Claudia Roderigo, Christine R Rose, Doreen M Floss, Jürgen Scheller, Jürgen Schrader
Epicardium-derived cells (EPDCs) play a fundamental role in embryonic cardiac development and are reactivated in the adult heart in response to myocardial infarction (MI). In this study, EPDCs from post-MI rat hearts highly expressed the ectoenzyme CD73 and secreted the profibrotic matricellular protein tenascin-C (TNC). CD73 on EPDCs extensively generated adenosine from both extracellular ATP and NAD. This in turn stimulated the release of additional nucleotides from a Brefeldin A-sensitive intracellular pool via adenosine-A2BR signaling, forming a positive-feedback loop...
March 31, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28347819/deferiprone-attenuates-inflammation-and-myocardial-fibrosis-in-diabetic-cardiomyopathy-rats
#17
Chunbo Zou, Xiaogang Liu, Rujuan Xie, Yushi Bao, Qing Jin, Xibei Jia, Li Li, Ruichan Liu
We attempted to investigate the therapeutic effects of deferiprone on DC rats and explore the underlying mechanism. Total 24 6-week-old male Wistar rats (weighing from 180 g to 220 g) were subjected to DC model construction and then randomly divided to three groups (8 rats per group): DC group, DC + 50 mg, and DC + 100 mg deferiprone treatment group. The 8 normal rats were considered as controls. After deferiprone treatment for 20 weeks, the blood samples were collected for the biochemical parameters test, including fasting glucose, HOMA-IR (homeostasis model assessment of the insulin resistance), serum iron, ferritin and transferrin saturation (TS)...
May 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28341124/tenascin-c-is-a-potential-cancer-associated-fibroblasts-marker-and-predicts-poor-prognosis-in-prostate-cancer
#18
Wei-Dong Ni, Zhao-Ting Yang, Chun-Ai Cui, Yan Cui, Long-Yun Fang, Yan-Hua Xuan
Tenascin-C (TNC), as a member of the extracellular matrix (ECM), plays an important role in cancer cell proliferation and migration and tumor invasion in various types of cancer. Here, we attempted to investigate the role of TNC as a prognostic factor in prostate cancer. We studied TNC expression via immunohistochemistry in 145 prostate cancer tissue samples. The clinicopathological relevance of TNC expression was examined, as well as other cancer-associated fibroblasts (CAFs)-related factors. Our results showed that the high levels of TNC expression in prostate cancer stroma was significantly associated with lymph node metastasis (P = 0...
March 21, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28291954/therapeutic-mechanisms-of-human-adipose-derived-mesenchymal-stem-cells-in-a-rat-tendon-injury-model
#19
Sang Yoon Lee, Bomi Kwon, Kyoungbun Lee, Young Hoon Son, Sun G Chung
BACKGROUND: Although survival of transplanted stem cells in vivo and differentiation of stem cells into tenocytes in vitro have been reported, there have been no in vivo studies demonstrating that mesenchymal stem cells (MSCs) could secrete their own proteins as differentiated tenogenic cells. Purpose/Hypothesis: Using a xenogeneic MSC transplantation model, we aimed to investigate whether MSCs could differentiate into the tenogenic lineage and secrete their own proteins. The hypothesis was that human MSCs would differentiate into the human tenogenic lineage and the cells would be able to secrete human-specific proteins in a rat tendon injury model...
May 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28262779/ischemic-injury-leads-to-extracellular-matrix-alterations-in-retina-and-optic-nerve
#20
Jacqueline Reinhard, Marina Renner, Susanne Wiemann, Daniel A Shakoor, Gesa Stute, H Burkhard Dick, Andreas Faissner, Stephanie C Joachim
Retinal ischemia occurs in a variety of eye diseases. Restrained blood flow induces retinal damage, which leads to progressive optic nerve degeneration and vision loss. Previous studies indicate that extracellular matrix (ECM) constituents play an important role in complex tissues, such as retina and optic nerve. They have great impact on de- and regeneration processes and represent major candidates of central nervous system glial scar formation. Nevertheless, the importance of the ECM during ischemic retina and optic nerve neurodegeneration is not fully understood yet...
March 6, 2017: Scientific Reports
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