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Tenascin C

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https://www.readbyqxmd.com/read/27904024/cartilage-attachment-morphology-of-the-fetal-cruciate-ligaments-of-the-knee-an-immunohistochemical-study-using-human-fetal-specimens
#1
Masahito Yamamoto, Hiromasa Takada, Takeshi Takayama, Sakura Katsumura, Mayumi Sato, Hiroshi Abe, Gen Murakami, Shin-Ichi Abe
Fetal cruciate ligaments of the knee provide two types of cartilage attachments: to a cartilage fovea or a simple continuation to the perichondrium. To examine a difference in matrix substance between a ligament attachment to the fovea and another attachment to the perichondrium. We histologically observed 12 human fetal femurs in which the posterior (or anterior) cruciate ligament provided a fovea-type (or a perichondrium-type) attachment. Immunohistochemistry of matric substances (aggrecan, versican, tenascin-c) was performed...
2016: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/27886664/degradation-behaviors-of-geometric-cues-and-mechanical-properties-in-a-3d-scaffold-for-tendon-repair
#2
Yang Wu, Yoke San Wong, Jerry Ying Hsi Fuh
A three-dimensional (3D) scaffold fabricated via electrohydrodynamic jet printing (E-jetting) and thermally uniaxial stretching, has been developed for tendon tissue regeneration in our previous study. In this study, more in-depth biological test showed that the aligned cell morphology guided by the anisotropic geometries of the 3D tendon scaffolds, leading to up-regulated tendious gene expression including collagen type I, decorin, tenascin-C and biglycan, as compared to the electrospun scaffolds. Given the importance of geometric cues to the biological function of the scaffolds, the degradation behaviors of the 3D scaffolds were investigated...
November 25, 2016: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27878658/role-of-matricellular-proteins-in-disorders-of-the-central-nervous-system
#3
A R Jayakumar, A Apeksha, M D Norenberg
Matricellular proteins (MCPs) are actively expressed non-structural proteins present in the extracellular matrix, which rapidly turnover and possess regulatory roles, as well as mediate cell-cell interactions. MCPs characteristically contain binding sites for other extracellular proteins, cell surface receptors, growth factors, cytokines and proteases, that provide structural support for surrounding cells. MCPs are present in most organs, including brain, and play a major role in cell-cell interactions and tissue repair...
November 23, 2016: Neurochemical Research
https://www.readbyqxmd.com/read/27875272/tenascin-c-at-a-glance
#4
REVIEW
Kim S Midwood, Matthias Chiquet, Richard P Tucker, Gertraud Orend
Tenascin-C (TNC) is a hexameric, multimodular extracellular matrix protein with several molecular forms that are created through alternative splicing and protein modifications. It is highly conserved amongst vertebrates, and molecular phylogeny indicates that it evolved before fibronectin. Tenascin-C has many extracellular binding partners, including matrix components, soluble factors and pathogens; it also influences cell phenotype directly through interactions with cell surface receptors. Tenascin-C protein synthesis is tightly regulated, with widespread protein distribution in embryonic tissues, but restricted distribution of tenascin-C in adult tissues...
December 1, 2016: Journal of Cell Science
https://www.readbyqxmd.com/read/27865025/mr-targeted-imaging-for-the-expression-of-tenascin-c-in-myocardial-infarction-in-vivo
#5
Jiacheng Song, Jing Yu, Yan Li, Shanshan Lu, Zhanlong Ma, Haibin Shi
PURPOSE: To investigate the presence of viable myocardium in mice with acute myocardial infarction (MI) using a molecular targeted probe. MATERIALS AND METHODS: Super paramagnetic iron oxide (SPIO) nanoparticles and tenascin-C antibody were conjugated as an MRI probe. Fifteen mice with infarction were injected with SPIO-anti-tenascin-C (3 days [d], 5d, 7d after infarction; n = 5 for each group). Another five mice with infarction (5d, n = 5) were injected with SPIO for comparison...
November 16, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27853940/novel-role-of-ccn3-that-maintains-the-differentiated-phenotype-of-articular-cartilage
#6
Danilo Janune, Tarek Abd El Kader, Eriko Aoyama, Takashi Nishida, Yasuhiko Tabata, Satoshi Kubota, Masaharu Takigawa
Knowledge of the microenvironment of articular cartilage in health and disease is the key to accomplishing fundamental disease-modifying treatments for osteoarthritis. The proteins comprising the CCN Family are matricellular proteins with a remarkable relevance within the context of cartilage metabolism. CCN2 displays a great capability for regenerating articular cartilage, and CCN3 has been shown to activate the expression of genes related to articular chondrocytes and to repress genes related to endochondral ossification in epiphyseal chondrocytes...
November 16, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27836730/tenascin-c-in-the-matrisome-of-neural-stem-and-progenitor-cells
#7
REVIEW
Andreas Faissner, Lars Roll, Ursula Theocharidis
The extracellular matrix consists of glycoproteins, proteoglycans and complex glycan structures that form the matrisome. Increasing evidence points to important functional roles of the ECM during development, plasticity and regeneration of the CNS. In particular, the ECM is an important constituent of the molecular microenvironment of the neural stem cell niches. While substantial evidence suggests that growth factors, cytokines and morphogens play important regulatory roles in the niche, the biological significance of the ECM has been less well studied...
November 8, 2016: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/27835899/lung-tissue-remodelling-in-mct-induced-pulmonary-hypertension-a-proposal-for-a-novel-scoring-system-and-changes-in-extracellular-matrix-and-fibrosis-associated-gene-expression
#8
Marcus Franz, Katja Grün, Stefan Betge, Ilonka Rohm, Bernadin Ndongson-Dongmo, Reinhard Bauer, P Christian Schulze, Michael Lichtenauer, Iver Petersen, Dario Neri, Alexander Berndt, Christian Jung
Pulmonary hypertension (PH) is associated with vasoconstriction and remodelling. We studied lung tissue remodelling in a rat model of PH with special focus on histology and extracellular matrix (ECM) remodelling. After induction of PH by monocrotaline, lung tissue was analysed histologically, by gene expression analysis and immunofluorescence labelling of ED-A domain containing fibronectin (ED-A+ Fn), B domain containing tenascin-C (B+ Tn-C) as well as alpha-smooth muscle actin (α-SMA). Serum concentrations of ED-A+ Fn were determined by ELISA...
November 8, 2016: Oncotarget
https://www.readbyqxmd.com/read/27830876/positional-changes-in-tendon-insertions-from-bone-to-fascia-development-of-the-pes-anserinus-and-semimembranosus-muscle-insertion-in-human-fetuses
#9
Zhe Wu Jin, Hiroshi Abe, Yu Jin, Shunichi Shibata, Gen Murakami, José Francisco Rodríguez-Vázquez
Development of a long muscle belly in fetal extremities generally requires a definite bony insertion of the long tendon. However, in adults, the pes anserinus and the semimembranosus tendon are inserted into fasciae. Development of fascial insertions in fetuses was investigated by examining serial histological sections obtained from seven fetuses at 8-9 weeks and eight fetuses at 14-16 weeks. The presence of matrix substances and macrophages was also examined by immunohistochemistry. At 8 weeks, the tendons of the semitendinosus, gracilis, sartorius and semimembranosus muscles were straight and inserted into the initial shaft-like proximal end of the tibia on the proximal side of the popliteus muscle...
November 10, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27820599/tissue-mechanics-promote-idh1-dependent-hif1%C3%AE-tenascin-c-feedback-to-regulate-glioblastoma%C3%A2-aggression
#10
Yekaterina A Miroshnikova, Janna K Mouw, J Matthew Barnes, Michael W Pickup, Johnathan N Lakins, Youngmi Kim, Khadjia Lobo, Anders I Persson, Gerald F Reis, Tracy R McKnight, Eric C Holland, Joanna J Phillips, Valerie M Weaver
Increased overall survival for patients with glioma brain tumours is associated with mutations in the metabolic regulator isocitrate dehydrogenase 1 (IDH1). Gliomas develop within a mechanically challenged microenvironment that is characterized by a dense extracellular matrix (ECM) that compromises vascular integrity to induce hypoxia and activate HIF1α. We found that glioma aggression and patient prognosis correlate with HIF1α levels and the stiffness of a tenascin C (TNC)-enriched ECM. Gain- and loss-of-function xenograft manipulations demonstrated that a mutant IDH1 restricts glioma aggression by reducing HIF1α-dependent TNC expression to decrease ECM stiffness and mechanosignalling...
November 7, 2016: Nature Cell Biology
https://www.readbyqxmd.com/read/27811845/dental-pulp-stem-cells-express-tendon-markers-under-mechanical-loading-and-are-a-potential-cell-source-for-tissue-engineering-of-tendon-like-tissue
#11
Yu-Ying Chen, Sheng-Teng He, Fu-Hua Yan, Peng-Fei Zhou, Kai Luo, Yan-Ding Zhang, Yin Xiao, Min-Kui Lin
Postnatal mesenchymal stem cells have the capacity to differentiate into multiple cell lineages. This study explored the possibility of dental pulp stem cells (DPSCs) for potential application in tendon tissue engineering. The expression of tendon-related markers such as scleraxis, tenascin-C, tenomodulin, eye absent homologue 2, collagens I and VI was detected in dental pulp tissue. Interestingly, under mechanical stimulation, these tendon-related markers were significantly enhanced when DPSCs were seeded in aligned polyglycolic acid (PGA) fibre scaffolds...
November 4, 2016: International Journal of Oral Science
https://www.readbyqxmd.com/read/27806678/decellularisation-and-characterisation-of-porcine-superflexor-tendon-a-potential-anterior-cruciate-ligament-replacement
#12
Gemma Jones, Anthony Herbert, Helen Berry, Jennifer Helen Edwards, John Fisher, Eileen Ingham
The porcine superflexor tendon (SFT) was identified as having appropriate structure and properties for development of a decellularised device for use in ACL reconstruction. SFTs were decellularised using a combination of freeze thaw and washes in hypotonic buffer and 0.1% (w/v) SDS in hypotonic buffer plus proteinase inhibitors followed by nuclease treatment and sterilisation using peracetic acid. The decellularised biological scaffold was devoid of cells and cell remnants and contained only 13 ng.mg<sup>-1</sup> (dry weight) residual total DNA...
November 2, 2016: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/27781307/composition-and-adaptation-of-human-myotendinous-junction-and-neighboring-muscle-fibers-to-heavy-resistance-training
#13
J R Jakobsen, A L Mackey, A B Knudsen, M Koch, M Kjaer, M R Krogsgaard
The myotendinous junction (MTJ) is a common site of strain injury and yet understanding of its composition and ability to adapt to loading is poor. The main aims of this study were to determine the profile of selected collagens and macrophage density in human MTJ and adjoining muscle fibers, and to investigate whether heavy exercise loading would alter this profile. Fifteen individuals scheduled for anterior cruciate ligament repair surgery were randomized into three groups: control, acute or 4 weeks heavy resistance training...
October 26, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27746411/serum-tenascin-c-as-a-novel-predictor-for-risk-of-coronary-artery-lesion-and-resistance-to-intravenous-immunoglobulin-in-kawasaki-disease%C3%A3-a-multicenter-retrospective-study
#14
Yoshiaki Okuma, Kenji Suda, Hideyuki Nakaoka, Yasuhiro Katsube, Yoshihide Mitani, Yukako Yoshikane, Fukiko Ichida, Takeji Matsushita, Hiroyuki Shichino, Isao Shiraishi, Jun Abe, Michiaki Hiroe, Toshimichi Yoshida, Kyoko Imanaka-Yoshida
BACKGROUND: Tenascin-C (TN-C) is an extracellular matrix glycoprotein that is heavily upregulated at sites of inflammation. We conducted a retrospective study to assess the utility of TN-C as a novel biomarker to predict the risk of developing coronary artery lesions (CAL) and resistance to intravenous immunoglobulin (IVIG) in patients with Kawasaki disease (KD).Methods and Results:We collected blood samples of 111 KD patients (IVIG-responder: 89, IVIG-resistant: 22; CAL: 8) and 23 healthy controls, and measured the serum levels of TN-C...
October 15, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27736918/gene-expression-analysis-of-the-irrigation-solution-samples-collected-during-vitrectomy-for-idiopathic-epiretinal-membrane
#15
Sayaka Myojin, Takeru Yoshimura, Shigeo Yoshida, Atsunobu Takeda, Yusuke Murakami, Yoichi Kawano, Yuji Oshima, Tatsuro Ishibashi, Koh-Hei Sonoda
PURPOSE: The analysis of gene expression in idiopathic epiretinal membranes (iERMs) may help elucidate ERM formation and its pathology. Here, we conducted a case-control study, in order to determine the expression levels of cytokines and other genes in eyes with macular hole (MH) or iERM. METHODS: Twenty eyes, obtained from seven male and 13 female patients, were included in the study. The average age of the study subjects was 69.1 ± 7.67 years, and 15 eyes had iERM, while five eyes had MH...
2016: PloS One
https://www.readbyqxmd.com/read/27717868/intermittent-hypoxia-confers-pro-metastatic-gene-expression-selectively-through-nf-%C3%AE%C2%BAb-in-inflammatory-breast-cancer-cells
#16
Katrin Gutsche, Elisa B Randi, Volker Blank, Daniel Fink, Roland H Wenger, Cornelia Leo, Carsten C Scholz
Inflammatory breast cancer (IBC) is the most aggressive form of breast cancer. Treatment options are limited and the mechanisms underlying its aggressiveness are poorly understood. Intermittent hypoxia (IH) causes oxidative stress and is emerging as important regulator of tumor metastasis. Vessels in IBC tumors have been shown to be immature, which is a primary cause of IH. We therefore investigated the relevance of IH for the modulation of gene expression in IBC cells in order to assess IH as potential regulator of IBC aggressiveness...
October 5, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27689402/integration-of-zebrafish-fin-regeneration-genes-with-expression-data-of-human-tumors-in-silico-uncovers-potential-novel-melanoma-markers
#17
Martin Hagedorn, Géraldine Siegfried, Katarzyna B Hooks, Abdel-Majid Khatib
Tissue regeneration requires expression of a large, unknown number of genes to initiate and maintain cellular processes such as proliferation, extracellular matrix synthesis, differentiation and migration. A unique model to simulate this process in a controlled manner is the re-growth of the caudal fin of zebrafish after amputation. Within this tissue stem cells differentiate into fibroblasts, epithelial and endothelial cells as well as melanocytes. Many genes implicated in the regeneration process are deregulated in cancer...
September 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27668890/tenascin-c-secreted-by-transdifferentiated-retinal-pigment-epithelial-cells-promotes-choroidal-neovascularization-via-integrin-%C3%AE-v
#18
Yoshiyuki Kobayashi, Shigeo Yoshida, Yedi Zhou, Takahito Nakama, Keijiro Ishikawa, Yuki Kubo, Mitsuru Arima, Shintaro Nakao, Toshio Hisatomi, Yasuhiro Ikeda, Akira Matsuda, Koh-Hei Sonoda, Tatsuro Ishibashi
Tenascin-C is expressed in choroidal neovascular (CNV) membranes in eyes with age-related macular degeneration (AMD). However, its role in the pathogenesis of CNV remains to be elucidated. Here we investigated the role of tenascin-C in CNV formation. In immunofluorescence analyses, tenascin-C co-stained with α-SMA, pan-cytokeratin, CD31, CD34, and integrin αV in the CNV membranes of patients with AMD and a mouse model of laser-induced CNV. A marked increase in the expression of tenascin-C mRNA and protein was observed 3 days after laser photocoagulation in the mouse CNV model...
September 26, 2016: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/27634466/progressive-muscle-proteome-changes-in-a-clinically-relevant-pig-model-of-duchenne-muscular-dystrophy
#19
Thomas Fröhlich, Elisabeth Kemter, Florian Flenkenthaler, Nikolai Klymiuk, Kathrin A Otte, Andreas Blutke, Sabine Krause, Maggie C Walter, Rüdiger Wanke, Eckhard Wolf, Georg J Arnold
Duchenne muscular dystrophy (DMD) is caused by genetic deficiency of dystrophin and characterized by massive structural and functional changes of skeletal muscle tissue, leading to terminal muscle failure. We recently generated a novel genetically engineered pig model reflecting pathological hallmarks of human DMD better than the widely used mdx mouse. To get insight into the hierarchy of molecular derangements during DMD progression, we performed a proteome analysis of biceps femoris muscle samples from 2-day-old and 3-month-old DMD and wild-type (WT) pigs...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27630718/induction-of-tenogenic-differentiation-mediated-by-extracellular-tendon-matrix-and-short-term-cyclic-stretching
#20
Janina Burk, Amelie Plenge, Walter Brehm, Sandra Heller, Bastian Pfeiffer, Cornelia Kasper
Tendon and ligament pathologies are still a therapeutic challenge, due to the difficulty in restoring the complex extracellular matrix architecture and biomechanical strength. While progress is being made in cell-based therapies and tissue engineering approaches, comprehensive understanding of the fate of progenitor cells in tendon healing is still lacking. The aim of this study was to investigate the effect of decellularized tendon matrix and moderate cyclic stretching as natural stimuli which could potentially direct tenogenic fate...
2016: Stem Cells International
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