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Biglycan

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https://www.readbyqxmd.com/read/28214837/efficacy-of-glucosamine-sulphate-in-skin-ageing-results-from-an-ex-vivo-anti-ageing-model-and-a-clinical-trial
#1
Audrey Gueniche, Isabelle Castiel-Higounenc
BACKGROUND: Glucosamine sulphate (GS) is essential in the biosynthesis of glycolipids, glycoproteins, glycosaminoglycans (GAGs), hyaluronate, and proteoglycans. Connective tissues primarily contain collagen and proteoglycans and play an important role in skin ageing. OBJECTIVE: The objectives were to assess ex vivo the impact of GS on skin ageing parameters and in vivo the effect of GS on the skin physiology of mature healthy volunteers after oral intake. METHODS: The impact of GS on skin ageing was assessed ex vivo via different immunohistochemical assays and histology and via a clinical study using biopsies...
February 18, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28199387/dermatan-sulfate-is-a-player-in-the-transglutaminase-2-interaction-network
#2
Grzegorz Wisowski, Ewa M Koźma, Tomasz Bielecki, Adam Pudełko, Krystyna Olczyk
Transglutaminase 2 (TG2) is a multifunctional protein that is primarily engaged in cell adhesion/signaling or shows Ca2+-dependent transglutaminase activity in the extracellular space of tissues. This latter action leads to the cross-linking of the extracellular matrix (ECM) proteins. The enhanced extracellular expression of TG2 is associated with processes such as wound healing, fibrosis or vascular remodeling that are also characterized by a high deposition of dermatan sulfate (DS) proteoglycans in the ECM...
2017: PloS One
https://www.readbyqxmd.com/read/28131044/biglycan-expression-earlier-vascular-damage-and-pro-atherogenic-profile-improvement-after-smoke-cessation-in-young-people
#3
Giuseppe Mandraffino, Caterina Oriana Aragona, Michele Scuruchi, Federica Mamone, Angela D'Ascola, Angela Alibrandi, Maurizio Cinquegrani, Carmela Morace, Lilia Oreto, Carlo Saitta, Enricomaria Mormina, Scipione Carerj, Antonino Saitta, Egidio Imbalzano
BACKGROUND AND AIMS: Young cigarette smokers may already present with early signs of vascular inflammation and damage; biglycan (BGN) has been shown to play a critical role in the initiation and progression of vascular lesions, also in young smokers. We investigated whether after smoke cessation, monocyte BGN expression is reduced; moreover, we evaluated any improvement of pro-atherogenic profile and arterial stiffness (AS), and their relationship with BGN in abstinent smokers. METHODS: Two-hundred-fifty-one young people who had decided to quit smoking were enrolled; of these, 71 had completed the 12-month observation period maintaining smoking abstinence...
January 16, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28116125/use-of-fgf-2-and-fgf-18-to-direct-bone-marrow-stromal-stem-cells-to-chondrogenic-and-osteogenic-lineages
#4
Cindy Shu, Susan M Smith, Christopher B Little, James Melrose
AIM: Intervertebral disc degeneration/low back pain is the number one global musculoskeletal condition in terms of disability and socioeconomic impact. MATERIALS & METHODS: Multipotent mesenchymal stem cells (MSCs) were cultured in micromass pellets ± FGF-2 or -18 up to 41 days, matrix components were immunolocalized and gene expression monitored by quantitative-reverse transcription PCR. RESULTS: Chondrogenesis occurred earlier in FGF-18 than FGF-2 cultures...
December 2016: Future Science OA
https://www.readbyqxmd.com/read/28097378/-molecular-pathogenesis-of-duchenne-muscular-dystrophy-related-fibrosis
#5
K Ohlendieck, D Swandulla
Progressive myofibrosis plays a key role in Duchenne muscular dystrophy. The dystrophic loss of contractile cells triggers a relatively nonspecific restructuring of the surrounding mesenchyme. The increase in connective and fatty tissue leads to muscular weakness and is therefore of critical importance for the cellular pathogenesis of muscular dystrophy. The systematic biochemical analysis of fibrosis using comparative proteomics has identified a number of extracellular matrix proteins that are indirectly involved in muscular dystrophy...
January 17, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28096061/connexin37-deficiency-alters-organic-bone-matrix-cortical-bone-geometry-and-increases-wnt-%C3%AE-catenin-signaling
#6
Rafael Pacheco-Costa, Jay R Kadakia, Emily G Atkinson, Joseph M Wallace, Lilian I Plotkin, Rejane D Reginato
Deletion of connexin (Cx) 37 in mice leads to increased cancellous bone mass due to defective osteoclast differentiation. Paradoxically; however, Cx37-deficient mice exhibit reduced cortical thickness accompanied by higher bone strength, suggesting a contribution of Cx37 to bone matrix composition. Thus, we investigated whether global deletion of Cx37 alters the composition of organic bone extracellular matrix. Five-month-old Cx37(-/-) mice exhibited increased marrow cavity area, and periosteal and endocortical bone surface resulting in higher total area in tibia compared to Cx37(+/+) control mice...
January 16, 2017: Bone
https://www.readbyqxmd.com/read/28075546/matrix-pathobiology-central-roles-for-proteoglycans-and-heparanase-in-health-and-disease
#7
Nikos K Karamanos
This thematic minireview series highlights new concepts in matrix pathobiology. The reviews in this series cover the roles of the two matrix proteoglycans, decorin and biglycan, in inflammation and autophagy, the various functions of syndecans in cancer development and prognosis and the recently discovered mechanisms underlying the multiple roles of heparanase in cancer progression, inflammation, and autophagy.
January 2017: FEBS Journal
https://www.readbyqxmd.com/read/28054366/the-role-of-molecular-pain-biomarkers-in-temporomandibular-joint-internal-derangement
#8
REVIEW
Malin Ernberg
There is evidence that low-grade inflammation may be responsible for pain and development of degenerative changes in temporomandibular joint internal derangement. This article reviews the current knowledge of the molecular mechanisms behind TMJ internal derangements. A non-systematic search was carried out in PubMed, Embase, and the Cochrane library for studies regarding pathophysiological mechanisms behind internal derangements focusing on pain mediating inflammatory and cartilage degrading molecules. Recent data suggests that release of cytokines may be the key event for pain and cartilage destruction in TMJ internal derangements...
January 5, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28019669/transforming-growth-factor-%C3%AE-1-modulates-the-expression-of-syndecan-4-in-cultured-vascular-endothelial-cells-in-a-biphasic-manner
#9
Takato Hara, Eiko Yoshida, Yasuyuki Fujiwara, Chika Yamamoto, Toshiyuki Kaji
Proteoglycans are macromolecules that consist of a core protein and one or more glycosaminoglycan side chains. Previously, we reported that transforming growth factor-β1 (TGF-β1 ) regulates the synthesis of a large heparan sulfate proteoglycan, perlecan, and a small leucine-rich dermatan sulfate proteoglycan, biglycan, in vascular endothelial cells depending on cell density. Recently, we found that TGF-β1 first upregulates and then downregulates the expression of syndecan-4, a transmembrane heparan sulfate proteoglycan, via the TGF-β receptor ALK5 in the cells...
December 26, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28005443/identification-and-characterization-of-adult-mouse-meniscus-stem-progenitor-cells
#10
Laura W Gamer, Rui Rui Shi, Ashira Gendelman, Dylan Mathewson, Jackson Gamer, Vicki Rosen
Meniscal damage is a common problem that accelerates the onset of knee osteoarthritis. Stem cell based tissue engineering treatment approaches have shown promise in preserving meniscal tissue and restoring meniscal function. The purpose of our study was to identify meniscus-derived stem/progenitor cells (MSPCs) from mouse, a model system that allows for in vivo analysis of the mechanisms underlying meniscal injury and healing. MSPCs were isolated from murine menisci grown in explant culture and characterized for stem cell properties...
December 22, 2016: Connective Tissue Research
https://www.readbyqxmd.com/read/27994093/association-of-anti-citrullinated-protein-or-peptide-antibodies-with-left-ventricular-structure-and-function-in-rheumatoid-arthritis
#11
Laura Geraldino-Pardilla, Cesare Russo, Jeremy Sokolove, William H Robinson, Afshin Zartoshti, Jenny Van Eyk, Justyna Fert-Bober, Joao Lima, Jon T Giles, Joan M Bathon
OBJECTIVE: High levels of ACPAs in RA are associated with more severe arthritis and worse prognosis. However, the role of ACPAs in mediating the increased risk of heart failure in RA remains undefined. We examined whether specific ACPAs were associated with subclinical left ventricular (LV) phenotypes that presage heart failure. METHODS: Sera from RA patients without clinical cardiovascular disease were assayed for specific ACPAs using a custom Bio-Plex bead assay, and their cross-sectional associations with cardiac magnetic resonance-derived LV measures were evaluated...
December 19, 2016: Rheumatology
https://www.readbyqxmd.com/read/27994047/contaminants-in-commercial-preparations-of-purified-small-leucine-rich-proteoglycans-may-distort-mechanistic-studies
#12
Sharon J Brown, Heidi R Fuller, Philip Jones, Bruce Caterson, Sally L Shirran, Catherine H Botting, Sally Roberts
The present study reports the perplexing results that came about because of seriously impure commercially available reagents. Commercial reagents and chemicals are routinely ordered by scientists and expected to have been rigorously assessed for their purity. Unfortunately, we found this assumption to be risky. Extensive work was carried out within our laboratory using commercially sourced preparations of the small leucine-rich proteoglycans (SLRPs), decorin and biglycan, to investigate their influence on nerve cell growth...
February 28, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/27939764/elevated-bmi-and-antibodies-to-citrullinated-proteins-interact-to-increase-rheumatoid-arthritis-risk-and-shorten-time-to-diagnosis-a-nested-case-control-study-of-women-in-the-nurses-health-studies
#13
Sara K Tedeschi, Jing Cui, Elizabeth V Arkema, William H Robinson, Jeremy Sokolove, Nithya Lingampalli, Jeffrey A Sparks, Elizabeth W Karlson, Karen H Costenbader
OBJECTIVE: Overweight/obesity and anti-citrullinated protein antibodies (ACPA) increase rheumatoid arthritis (RA) risk. We investigated the relationship between body mass index (BMI) and ACPA, tested for an interaction between BMI and ACPA for RA risk, and examined effects of BMI and ACPA on time to RA diagnosis. DESIGN: Within the Nurses' Health Studies, blood samples were collected before diagnosis from medical record-confirmed incident RA cases and matched controls...
September 13, 2016: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/27925300/the-importance-of-serum-biglycan-levels-as-a-fibrosis-marker-in-patients-with-chronic-hepatitis-b
#14
Rafiye Ciftciler, Seren Ozenirler, Aysegul Atak Yucel, Mustafa Cengiz, Gulbanu Erkan, Erkan Buyukdemirci, Cemile Sönmez, Guldal Yılmaz Esendaglı
BACKGROUND: Liver biopsy is recommended in the majority of patients with chronic viral hepatitis for fibrosis evaluation. Because of the potential risks of liver biopsy, many studies related to non-invasive biomarkers of hepatic fibrosis have been performed. We aimed to assess the diagnostic value of serum biglycan as a non-invasive fibrosis marker in chronic hepatitis B patients. METHODS: This study included 120 patients with biopsy-proven hepatitis B patients and 60 healthy controls...
December 7, 2016: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/27907131/itraq-based-quantitative-proteomic-comparison-of-early-and-late-passage-human-dermal-papilla-cell-secretome-in-relation-to-inducing-hair-follicle-regeneration
#15
Huan Zhang, Ning-Xia Zhu, Keng Huang, Bo-Zhi Cai, Yang Zeng, Yan-Ming Xu, Yang Liu, Yan-Ping Yuan, Chang-Min Lin
Alopecia is an exceedingly prevalent problem that lacks effective therapy. Recently, research has focused on early-passage dermal papilla cells (DPCs), which have hair inducing activity both in vivo and in vitro. Our previous study indicated that factors secreted from early-passage DPCs contribute to hair follicle (HF) regeneration. To identify which factors are responsible for HF regeneration and why late-passage DPCs lose this potential, we collected 48-h-culture medium (CM) from both of passage 3 and 9 DPCs, and subcutaneously injected the DPC-CM into NU/NU mice...
2016: PloS One
https://www.readbyqxmd.com/read/27886664/degradation-behaviors-of-geometric-cues-and-mechanical-properties-in-a-3d-scaffold-for-tendon-repair
#16
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/27860287/proteoglycan-neofunctions-regulation-of-inflammation-and-autophagy-in-cancer-biology
#17
REVIEW
Liliana Schaefer, Claudia Tredup, Maria A Gubbiotti, Renato V Iozzo
Inflammation and autophagy have emerged as prominent issues in the context of proteoglycan signaling. In particular, two small, leucine-rich proteoglycans, biglycan and decorin, play pivotal roles in the regulation of these vital cellular pathways and, as such, are intrinsically involved in cancer initiation and progression. In this minireview, we will address novel functions of biglycan and decorin in inflammation and autophagy, and analyze new emerging signaling events triggered by these proteoglycans, which directly or indirectly modulate these processes...
January 2017: FEBS Journal
https://www.readbyqxmd.com/read/27849015/sterile-inflammation-as-a-factor-in-human-male-infertility-involvement-of-toll-like-receptor-2-biglycan-and-peritubular-cells
#18
C Mayer, M Adam, L Glashauser, K Dietrich, J U Schwarzer, F-M Köhn, L Strauss, H Welter, M Poutanen, A Mayerhofer
Changes in the wall of seminiferous tubules in men with impaired spermatogenesis imply sterile inflammation of the testis. We tested the hypothesis that the cells forming the wall of seminiferous tubules, human testicular peritubular cells (HTPCs), orchestrate inflammatory events and that Toll like receptors (TLRs) and danger signals from the extracellular matrix (ECM) of this wall are involved. In cultured HTPCs we detected TLRs, including TLR2. A TLR-2 ligand (PAM) augmented interleukin 6 (IL-6), monocyte chemo-attractant protein-1 (MCP-1) and pentraxin 3 (PTX3) in HTPCs...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27789290/ablation-of-biglycan-attenuates-cardiac-hypertrophy-and-fibrosis-after-left-ventricular-pressure-overload
#19
Nadine Beetz, Carolin Rommel, Tilman Schnick, Elena Neumann, Achim Lother, Elsa Beatriz Monroy-Ordonez, Martin Zeeb, Sebastian Preissl, Ralf Gilsbach, Ariane Melchior-Becker, Bartosz Rylski, Monika Stoll, Liliana Schaefer, Friedhelm Beyersdorf, Brigitte Stiller, Lutz Hein
AIMS: Biglycan, a small leucine-rich proteoglycan, has been shown to play an important role in stabilizing fibrotic scars after experimental myocardial infarction. However, the role of biglycan in the development and regression of cardiomyocyte hypertrophy and fibrosis during cardiac pressure overload and unloading remains elusive. Thus, the aim of the present study was to assess the effect of biglycan on cardiac remodeling in a mouse model of left ventricular pressure overload and unloading...
December 2016: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/27742920/strenuous-treadmill-running-induces-a-chondrocyte-phenotype-in-rat-achilles-tendons
#20
Shao-Yong Xu, Shu-Fen Li, Guo-Xin Ni
BACKGROUND Although tendinopathy is common, its underlying pathogenesis is poorly understood. This study aimed to investigate the possible pathogenesis of tendinopathy. MATERIAL AND METHODS In this study, a total of 24 rats were randomly and evenly divided into a control (CON) group and a strenuous treadmill running (STR) group. Animals in the STR group were subjected to a 12-week treadmill running protocol. Subsequently, all Achilles tendons were harvested to perform histological observation or biochemical analyses...
October 15, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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