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Tenascin C

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https://www.readbyqxmd.com/read/28916657/tenascin-c-and-integrin-%C3%AE-9-mediate-interactions-of-prostate-cancer-with-the-bone-microenvironment
#1
Rebeca San Martin, Ravi Pathak, Antrix Jain, Sung Yun Jung, Susan G Hilsenbeck, Maria C Piňa-Barba, Andrew G Sikora, Kenneth J Pienta, David R Rowley
Deposition of the extracellular matrix protein tenascin-C is part of the reactive stroma response, which has a critical role in prostate cancer progression. Here we report that tenascin-C is expressed in the bone endosteum and involved associated with formation of prostate bone metastases. Metastatic cells cultured on osteo-mimetic surfaces coated with tenascin-C exhibited enhanced adhesion and colony formation as mediated by integrin α9β1. Additionally, metastatic cells preferentially migrated and colonized tenascin-C-coated trabecular bone xenografts in a novel system that employed chorioallantoic membranes of fertilized chicken eggs as host...
September 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28886271/microrna-signature-in-the-chemoprevention-of-functionally-enriched-stem-and-progenitor-pools-fespp-by-active-hexose-correlated-compound-ahcc
#2
Émilie A Graham, Jean-François Mallet, Majed Jambi, Hiroshi Nishioka, Kohei Homma, Chantal Matar
PURPOSE: Many breast cancer patients use natural compounds in their battle against breast cancer. Active Hexose Correlated Compound (AHCC®) is a cultured mushroom mycelium extract shown to favorably modulate the immune system and alleviate cancer burden. Cancer Stem cells (CSCs) are a subset of highly tumorigenic cancer cells that are thought to be responsible for recurrence. CSCs can be epigenetically regulated by microRNAs (miRNAs). We hypothesized that AHCC may influence CSCs by modulating tumor-suppressor or oncogenic miRNAs...
September 8, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28879051/targeting-danger-molecules-in-tendinopathy-the-hmgb1-tlr4-axis
#3
Moeed Akbar, Derek S Gilchrist, Susan M Kitson, Briana Nelis, Lindsay A N Crowe, Emma Garcia-Melchor, James H Reilly, Shauna C Kerr, George A C Murrell, Iain B McInnes, Neal L Millar
OBJECTIVES: To seek evidence of the danger molecule, high-mobility group protein B1 (HMGB1) expression in human tendinopathy and thereafter, to explore mechanisms where HMGB1 may regulate inflammatory mediators and matrix regulation in human tendinopathy. METHODS: Torn supraspinatus tendon (established pathology) and matched intact subscapularis tendon (representing 'early pathology') biopsies were collected from patients undergoing arthroscopic shoulder surgery...
2017: RMD Open
https://www.readbyqxmd.com/read/28874184/multipotent-stromal-cells-mesenchymal-stem-cells-and-fibroblasts-combine-to-minimize-skin-hypertrophic-scarring
#4
Cecelia C Yates, Melanie Rodrigues, Austin Nuschke, Zariel I Johnson, Diana Whaley, Donna Stolz, Joseph Newsome, Alan Wells
BACKGROUND: Transplantation of mesenchymal stem cells (MSC) has been proposed to improve wound healing. However, as these cells only transiently survive in the implantation site, the mechanisms underlying this beneficial healing response are associated with restorative paracrine effects of MSC matricellular factors on resident stromal cells. However, this requires that the recipient has a robust reservoir of viable cells. Here, we examine the influence of MSCs on the behavior of cotransplanted fibroblasts, in a manner to provide augmented cellular reserve to debilitated individuals, specifically focusing on matrix remodeling following in-vivo wounding...
September 5, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28874093/comprehensive-dna-microarray-expression-profiles-of-tumors-in-tenascin-c-knockout-mice
#5
Kaori Matsumoto, Yuji Nakai, Masaru Hoshino, Koki Yamazaki, Yoshiaki Takioto, Satoru Takadera, Takayuki Nakagawa, Ryohei Nishimura, Moriaki Kusakabe
Tenascin-C (TNC), an extracellular matrix glycoprotein, plays a pivotal role in tumor growth. However, the mechanism whereby TNC affects tumor biology remains unclear. To investigate the exact role of TNC in primary tumor growth, a mouse mammary tumor cell line, GLMT1, was first developed. Subsequently, global gene expression in GLMT1-derived tumors was compared between wild-type (WT) and TNC-knockout (TNKO) mice. Tumors in WT mice were significantly larger than those in TNKO mice. DNA microarray analysis revealed 447 up and 667 downregulated in the tumors inoculated into TNKO mice as compared to tumors in WT mice...
September 6, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28867376/a-non-internalizing-antibody-drug-conjugate-based-on-an-anthracycline-payload-displays-potent-therapeutic-activity-in-vivo
#6
Alberto Dal Corso, Rémy Gébleux, Patrizia Murer, Alex Soltermann, Dario Neri
Antibody-drug conjugates are generally believed to crucially rely on internalization into cancer cells for therapeutic activity. Here, we show that a non-internalizing antibody-drug conjugate, based on the F16 antibody specific to the alternatively spliced A1 domain of tenascin-C, mediates a potent therapeutic activity when equipped with the anthracycline PNU159682. The peptide linker, connecting the F16 antibody in IgG format at a specific cysteine residue to the drug, was stable in serum but could be efficiently cleaved in the subendothelial extracellular matrix by proteases released by the dying tumor cells...
September 1, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28857429/tenascin-c-renders-a-proangiogenic-phenotype-in-macrophage-via-annexin-ii
#7
Zhiyang Wang, Qi Wei, Liang Han, Keqing Cao, Tianfeng Lan, Zhenjie Xu, Yingjuan Wang, Yuan Gao, Jing Xue, Fei Shan, Jun Feng, Xin Xie
Tenascin-c is an extracellular matrix glycoprotein, the expression of which relates to the progression of atherosclerosis, myocardial infarction and heart failure. Annexin II acts as a cell surface receptor of tenascin-c. This study aimed to delineate the role of tenascin-c and annexin II in macrophages presented in atherosclerotic plaque. Animal models with atherosclerotic lesions were established using ApoE-KO mice fed with high-cholesterol diet. The expression of tenascin-c and annexin II in atherosclerotic lesions was determined by qRT-PCR, Western blot and immunohistochemistry analysis...
August 30, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28856171/genetic-factors-in-tendon-injury-a-systematic-review-of-the-literature
#8
REVIEW
Natalie H Vaughn, Hayk Stepanyan, Robert A Gallo, Aman Dhawan
BACKGROUND: Tendon injury such as tendinopathy or rupture is common and has multiple etiologies, including both intrinsic and extrinsic factors. The genetic influence on susceptibility to tendon injury is not well understood. PURPOSE: To analyze the published literature regarding genetic factors associated with tendon injury. STUDY DESIGN: Systematic review; Level of evidence, 3. METHODS: A systematic review of published literature was performed in concordance with the Preferred Reporting Items of Systematic Reviews and Meta-analysis (PRISMA) guidelines to identify current evidence for genetic predisposition to tendon injury...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28819748/lipoxin-a4-attenuates-bronchopulmonary-dysplasia-via-upregulation-of-let-7c-and-downregulation-of-tgf-%C3%AE-1-signaling-pathway
#9
Xiao-Qing Chen, Sheng-Hua Wu, Yan-Yan Luo, Bing-Jie Li, Shu-Jun Li, Hong-Yan Lu, Rui Jin, Zhong-Yi Sun
Transforming growth factor-β (TGF-β) superfamily members are key regulators for lung development and progress of bronchopulmonary dysplasia (BPD). The mechanisms by which lipoxin A4 (LXA4) attenuates development of BPD have not been clarified. Neonatal murine BPD models were inducted by hyperoxia treatment. Neonatal mice were exposed to room air or 85% O2 hyperoxia with or without treatment with 5S,6R-methyl-LXA4 or anti-TGF-β antibodies. Mouse lung epithelial cells (MLE-12 cells) and mouse embryonic fibroblasts (NIH/3T3 cells) were cultured in room air or 85% O2 followed by treatment of LXA4, anti-TGF-β antibodies, and let-7c mimic/anti-microRNA transfections...
August 17, 2017: Inflammation
https://www.readbyqxmd.com/read/28800110/response-of-dermal-fibroblasts-to-biochemical-and-physical-cues-in-aligned-polycaprolactone-silk-fibroin-nanofiber-scaffolds-for-application-in-tendon-tissue-engineering
#10
Chih-Hao Chen, Shih-Hsien Chen, Chang-Yi Kuo, Meng-Lun Li, Jyh-Ping Chen
Silk fibroin (SF) and fiber alignment were introduced into polycaprolactone (PCL)-based electrospun nanofibers as chemical and physical cues for tendon tissue engineering applications. The physicochemical properties of random PCL (RP) nanofibers, random PCL/SF (RPSF) nanofibers and aligned PCL/SF (APSF) nanofibers were characterized for fiber orientation and SF blending effects. An in vitro cell culture with rabbit dermal fibroblasts (RDFBs) on nanofibers indicated that SF promotes cell proliferation to a higher extent than fiber alignment...
August 11, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28766166/rhpdgf-bb-combined-with-adscs-in-the-treatment-of-achilles-tendinitis-via-mir-363-pi3%C3%A2-k-akt-pathway
#11
Qiao-Jie Chen, Liang Chen, Shao-Kun Wu, Yao-Jun Wu, Qing-Jiang Pang
To investigate the mechanism of recombinant human platelet-derived growth factor-BB (rhPDGF-BB) and human adipose-derived stem cells (hADSCs) in the treatment of Achilles tendinitis. Biomechanical indices of stiffness, stress, and maximum load-to-failure were detected by biomechanical test. mRNA and protein levels of miR-363, p-PI3K/AKT, tendon-related genes Collagen I, Scleraxis (Scx), and Tenascin C (TNC) were measured by qRT-PCR and western blot. The proliferation of hADSCs was accessed by MTT assay. Biomechanical indices of stiffness, stress, and maximum load-to-failure, and mRNA and protein levels of tendon-related genes could be improved by rhPDGF-BB or hADSCs alone, and could be further improved by rhPDGF-BB + hADSCs...
August 1, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28753740/photopolymerized-micropatterns-with-high-feature-frequencies-overcome-chemorepulsive-borders-to-direct-neurite-growth
#12
Bradley W Tuft, Linjing Xu, Braden Leigh, Daniel Lee, C Allan Guymon, Marlan R Hansen
Developing and regenerating neurites respond to a variety of biophysical and biochemical cues in their microenvironment to reach target cells and establish appropriate synapses. Defining the hierarchal relationship of both types of cues to direct neurite growth carries broad significance for neural development, regeneration, and, in particular, engineering of neural prostheses that improve tissue integration with native neural networks. In this work, chemorepulsive biochemical borders are established on substrates with a range of surface microfeatures to determine the potential of physical cues to overcome conflicting biochemical cues...
July 28, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28752190/postlactational-involution-biomarkers-plasminogen-and-phospho-stat3-are-linked-with-active-age-related-lobular-involution
#13
Melody L Stallings-Mann, Ethan P Heinzen, Robert A Vierkant, Stacey J Winham, Tanya L Hoskin, Lori A Denison, Aziza Nassar, Lynn C Hartmann, Daniel W Visscher, Marlene H Frost, Mark E Sherman, Amy C Degnim, Derek C Radisky
PURPOSE: Breast terminal duct lobular units undergo two distinctive physiological processes of involution: age-related lobular involution (LI), which is gradual and associated with decreased breast cancer risk, and postlactational involution, which is relatively precipitous, occurs with weaning, and has been associated with potentiation of tumor aggressiveness in animal models. Here we assessed whether markers of postlactational involution are associated with ongoing LI in a retrospective tissue cohort...
July 27, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28747552/tenascin-c-and-fibronectin-in-normal-esophageal-mucosa-barrett-s-esophagus-dysplasia-and-adenocarcinoma
#14
Joni Leppänen, Sara Bogdanoff, Petri P Lehenkari, Juha Saarnio, Joonas H Kauppila, Tuomo J Karttunen, Heikki Huhta, Olli Helminen
BACKGROUND: Tenascin-C and fibronectin are adhesive glycoproteins modulating the structure of the extracellular matrix and cellular functions. Their expression and function in esophageal adenocarcinoma is poorly known. The aim of this study was to evaluate the expression of tenascin-C and fibronectin in esophageal adenocarcinoma and its precursor stages. RESULTS: Stromal tenascin-C and fibronectin expression were found in all evaluated lesion types. Expression of both molecules increased from gastric metaplasia towards adenocarcinoma (p<0...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28747334/pedf-expression-affects-retinal-endothelial-cell-pro-angiogenic-properties-through-alterations-in-cell-adhesive-mechanisms
#15
Juliana Falero-Perez, SunYoung Park, Christine M Sorenson, Nader Sheibani
Pigment epithelium derived factor (PEDF) is an endogenous inhibitor of angiogenesis. Although various ocular cell types including retinal endothelial cells (EC) produce PEDF, we know very little about cell autonomous effects of PEDF in these cell types. Here we determined how PEDF expression affects retinal EC proangiogenic properties. Retinal EC were prepared from wild type (PEDF+/+) and PEDF-deficient (PEDF-/-) mice. The identity of EC was confirmed by staining for specific markers including VE-cadherin, CD31, and B4-lectin...
July 26, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28745050/fibronectin-conformation-and-assembly-analysis-of-fibronectin-deletion-mutants-and-fibronectin-glomerulopathy-gfnd-mutants
#16
Tomoo Ohashi, Christopher A Lemmon, Harold P Erickson
To study fibronectin (FN) conformation and assembly, we generated several deletion mutants: FNΔ(I)1-5, FNΔ(III)1-3, FNΔ(III)4-8, and FNΔ(III)11-14. A monomeric form, FNmono, which lacked the C-terminal dimerization region, was also created. FNtnA-D was generated by swapping FNIII domains 1-8 in FNΔ(III)11-14 with seven FNIII domains from tenascin-C. The conformations of these mutants were analyzed by glycerol gradient sedimentation under low-salt (20 mM NaCl) and high-salt (200 mM NaCl) conditions. Surprisingly, most of the mutants showed a compact conformation under low-salt conditions, except for FNtnA-D...
August 29, 2017: Biochemistry
https://www.readbyqxmd.com/read/28732652/correlation-of-tenascin-c-concentrations-in-serum-with-outcome-of-traumatic-brain-injury-in-humans
#17
Yuan-Yuan Zhao, Lin Lou, Kai-Chuang Yang, Hai-Bo Wang, Yan Xu, Gang Lu, Hai-Yan He
BACKGROUND: Tenascin-C, a matricellular protein, is involved in brain injury. However, change of tenascin-C concentrations in peripheral blood remains unknown after traumatic brain injury (TBI). METHODS: Serum tenascin-C concentrations were measured in 100 healthy controls, 108 severe TBI patients, 79 moderate TBI patients and 32 mild TBI patients. RESULTS: Serum tenascin-C concentrations of patients were significantly higher than those of controls...
July 18, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28723669/multicomponent-analysis-of-the-tumour-microenvironment-reveals-low-cd8-t-cell-number-low-stromal-caveolin-1-and-high-tenascin-c-and-their-combination-as-significant-prognostic-markers-in-non-small-cell-lung-cancer
#18
David Onion, Mark Isherwood, Naveen Shridhar, Mikalena Xenophontos, Madeleine L Craze, Laura J Day, María A García-Márquez, Robert G Pineda, Alexander M Reece-Smith, John H Saunders, John P Duffy, Richard H Argent
The complex interplay of the tumour microenvironment (TME) and its role in disease progression and response to therapy is poorly understood. The majority of studies to date focus on individual components or molecules within the TME and so lack the power correlative analysis. Here we have performed a multi-parameter analysis of the TME in 62 resectable non-small cell lung cancer (NSCLC) specimens detailing number and location of immune infiltrate, assessing markers of cancer-associated fibroblasts, caveolin-1 and tenascin-C, and correlating with clinicopathological details, as well as markers of disease progression such as epithelial-to-mesenchymal transition (EMT)...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722504/role-of-tenascin-c-in-articular-cartilage
#19
Masahiro Hasegawa, Toshimichi Yoshida, Akihiro Sudo
Tenascin-C (TN-C) is a glycoprotein component of the extracellular matrix (ECM). TN-C consists of four distinct domains, including the tenascin assembly domain, epidermal growth factor-like repeats, fibronectin type III-like repeats, and the fibrinogen-like globe (FBG) domain. This review summarizes the role of TN-C in articular cartilage. Expression of TN-C is associated with the development of articular cartilage but markedly decreases during maturation of chondrocytes and disappears almost completely in adult articular cartilage...
July 19, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28720870/monocyte-adhesion-to-atherosclerotic-matrix-proteins-is-enhanced-by-asn-gly-arg-deamidation
#20
Bamaprasad Dutta, Jung Eun Park, Subodh Kumar, Piliang Hao, Xavier Gallart-Palau, Aida Serra, Yan Ren, Vitaly Sorokin, Chuen Neng Lee, Hee Hwa Ho, Dominique de Kleijn, Siu Kwan Sze
Atherosclerosis arises from leukocyte infiltration and thickening of the artery walls and constitutes a major component of vascular disease pathology, but the molecular events underpinning this process are not fully understood. Proteins containing an Asn-Gly-Arg (NGR) motif readily undergo deamidation of asparagine to generate isoDGR structures that bind to integrin αvβ3 on circulating leukocytes. Here we report the identification of isoDGR motifs in human atherosclerotic plaque components including extracellular matrix (ECM) proteins fibronectin and tenascin C, which have been strongly implicated in human atherosclerosis...
July 18, 2017: Scientific Reports
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