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https://www.readbyqxmd.com/read/29467016/advancing-osteochondral-tissue-engineering-bone-morphogenetic-protein-transforming-growth-factor-and-fibroblast-growth-factor-signaling-drive-ordered-differentiation-of-periosteal-cells-resulting-in-stable-cartilage-and-bone-formation-in-vivo
#1
L F Mendes, H Katagiri, W L Tam, Y C Chai, L Geris, S J Roberts, F P Luyten
BACKGROUND: Chondrogenic mesenchymal stem cells (MSCs) have not yet been used to address the clinical demands of large osteochondral joint surface defects. In this study, self-assembling tissue intermediates (TIs) derived from human periosteum-derived stem/progenitor cells (hPDCs) were generated and validated for stable cartilage formation in vivo using two different animal models. METHODS: hPDCs were aggregated and cultured in the presence of a novel growth factor (GF) cocktail comprising of transforming growth factor (TGF)-β1, bone morphogenetic protein (BMP)2, growth differentiation factor (GDF)5, BMP6, and fibroblast growth factor (FGF)2...
February 21, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29450729/physical-activity-and-mediterranean-diet-based-on-olive-tree-phenolic-compounds-from-two-different-geographical-areas-have-protective-effects-on-early-osteoarthritis-muscle-atrophy-and-hepatic-steatosis
#2
Marta Anna Szychlinska, Paola Castrogiovanni, Francesca Maria Trovato, Houda Nsir, Mokhtar Zarrouk, Debora Lo Furno, Michelino Di Rosa, Rosa Imbesi, Giuseppe Musumeci
PURPOSE: Osteoarthitis (OA) leads to progressive loss of articular cartilage, pain and joint disability. An acute injury constitutes an important risk factor for early OA, determining an inflammatory process responsible of cartilage degeneration and muscle atrophy, due to the joint pain and immobility. The study aims to assess the effects of conjugation of physical activity and diet enriched by olive tree compounds [extra virgin olive oil (EVOO) and olive leaf extract (OLE)], on the musculoskeletal system in OA rat model...
February 15, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29379010/isoliquiritigenin-blunts-osteoarthritis-by-inhibition-of-bone-resorption-and-angiogenesis-in-subchondral-bone
#3
Baochao Ji, Zhendong Zhang, Wentao Guo, Hairong Ma, Boyong Xu, Wenbo Mu, Abdusami Amat, Li Cao
Isoliquiritigenin (ISL), a natural flavonoid extracted from licorice, has been demonstrated to exert attenuation of osteoclastogenesis and anti-angiogenesis activity in a wide variety of cells. Here, we first evaluated the effects of ISL on pathogenesis of osteoarthritis in a mouse model of OA. The data showed that ISL blunted progression of OA and lowered the Osteoarthritis Research Society International (OARSI)-Modified Making Score and protected the articular cartilage. The thickness of calcified cartilage zone was significantly decreased in ISL-treated ACLT mice compared with vehicle group...
January 29, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29375695/influence-of-cartilage-interstitial-fluid-on-gene-expression-in-cruciate-ligament-fibroblasts
#4
Anna Osiecka-Iwan, Stanisław Moskalewski, Anna Kosowska, Anna Hyc
Loading of articular cartilage during motion squeezes the fluid from the cartilage, termed cartilage interstitial fluid (CIF), which was found to influence gene expression in synovial membrane cells. After crucial ligaments damage, these cells are exposed to synovial fluid containing factors released from articular cartilage; the aim of the present study was to establish the influence of CIF and factors present in CIF (CIF-like cocktails) on crucial ligament fibroblasts. CIF was squeezed from articular-epiphyseal cartilage complexes of newborn rats...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29332174/a-friend-in-knee-ccn3-may-inhibit-osteoarthritis-progression
#5
Alex Peidl
Osteoarthritis (OA) is a major clinical problem among the ageing population, yet no disease-modifying treatments currently exist. This issue arises, in part, due to the complex processes occurring in the microenvironment of articular cartilage that lead to osteoarthritic changes. Gaining a better understanding of these processes is crucial in developing a viable therapy for OA. A recent report in Journal of Bone Mineral Metabolism by Janune et al. (J Bone Miner Metab 35:582-597, 2016) suggests a novel role for CCN3 in maintaining the differentiated phenotype of articular cartilage...
January 13, 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29281950/kartogenin-enhanced-chondrogenesis-in-co-cultures-of-chondrocytes-and-bone-mesenchymal-stem-cells
#6
Chun Liu, Tao Li, Zhijian Yang, Deshuai Liu, Yun Li, Zhiyou Zhou, Qiqing Zhang
Articular cartilage has poor capability of regeneration due to the avascular surrounding and low metabolic activity. Kartogenin (KGN), an emerging nonprotein heterocyclic compound, was screened to stimulate chondrogenic differentiation of bone mesenchymal stem cells (BMSCs). Co-culturing BMSCs and chondrocytes was reported to overcome the shortcomings of forming fibroblastic and hypertrophic cartilages. In this study, KGN was incorporated into the Col-Tgel hydrogel to form a Gel/Cell/KGN complex which fabricated an appropriate microenvironment for effective cartilage regeneration of BMSCs and/or chondrocyte...
December 27, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29162967/lubricin-a-principal-modulator-of-the-psychoneuroendocrine-osteoimmune-interactome-implications-for-novel-treatments-of-osteoarthritic-pathologies
#7
Allen Khakshooy, Nicole Balenton, Francesco Chiappelli
Lubricin is a synovial glycoprotein that contributes to joint lubrication. We propose the hypothesis that lubricin is a key modulator of the psychoneuroendocrine-osteoimmune interactome, with important clinical relevance for osteoarthritic pathologies. We consider a variety of neuroendocrine-immune factors, including inflammatory cytokines and chemokines that may contribute to the modulation of lubricin in rheumatic complications. Based on our preliminary immunocytochemistry and fractal analysis data, and in the context of translational research of modern healthcare, we propose that molecular lubricin gene expression modification by means of the novel CRISPR/Cas system be considered for osteoarthritic therapies...
2017: Bioinformation
https://www.readbyqxmd.com/read/29097208/effect-of-eldecalcitol-on-articular-cartilage-through-the-regulation-of-transcription-factor-erg-in-a-murine-model-of-knee-osteoarthritis
#8
Kazumasa Yamamura, Yoichi Ohta, Kenji Mamoto, Ryo Sugama, Yukihide Minoda, Hiroaki Nakamura
Clinical studies have reported an association between low blood levels of 25-hydroxyvitamin D and the progression of osteoarthritis (OA), but the mechanism and effects of vitamin D signaling on articular chondrocytes and cartilage remains unclear. The purpose of this study was to investigate the effects of vitamin D on articular cartilage degeneration using eldecalcitol (ED-71), which is an active vitamin D3 analog. Eight-week old male C57BL/6NCrSlc mice were subjected to experimental surgery to induce OA and local treatments with 10 μL ED-71 (0...
October 30, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29030641/lubricin-binds-cartilage-proteins-cartilage-oligomeric-matrix-protein-fibronectin-and-collagen-ii-at-the-cartilage-surface
#9
Sarah A Flowers, Agata Zieba, Jessica Örnros, Chunsheng Jin, Ola Rolfson, Lena I Björkman, Thomas Eisler, Sebastian Kalamajski, Masood Kamali-Moghaddam, Niclas G Karlsson
Lubricin, a heavily O-glycosylated protein, is essential for boundary lubrication of articular cartilage. Strong surface adherence of lubricin is required given the extreme force it must withstand. Disulfide bound complexes of lubricin and cartilage oligomeric matrix protein (COMP) have recently been identified in arthritic synovial fluid suggesting they may be lost from the cartilage surface in osteoarthritis and inflammatory arthritis. This investigation was undertaken to localise COMP-lubricin complexes within cartilage and investigate if other cartilage proteins are involved in anchoring lubricin to the joint...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28877607/levels-of-matrix-degrading-enzymes-and-lubricin-in-patients-with-degenerative-joint-disease-requiring-arthroplasty
#10
Christopher Wanderling, Jeffrey Liles, Elissa Davis, Daniel Schmitt, Stephen Statz, Nil Guler, Debra Hoppensteadt, Jawed Fareed, William Hopkinson
Total joint arthroplasty (TJA) of the hip or knee (THA and TKA) is the primary surgical intervention for individuals with degenerative joint disease (DJD). Although it is commonly thought that shear force on the joint causes the degradation of articular cartilage, it is possible that there are other factors that contribute to the progression of DJD. It is plausible that specific enzymes that degrade the joint are upregulated, or conversely, there is downregulation of enzymes critical for joint lubrication. The aim of this study is to profile collagenase-1, elastase, heparanase, and lubricin levels in patients undergoing TJA in order to determine potential preexisting dysregulation that contributes to the pathogenesis of DJD...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28796122/ocular-surface-lubricants
#11
Leonard Bielory, Preeti Wagle
PURPOSE OF REVIEW: The purpose of this article is to provide an overview of the ocular lubricants currently available, consider the components of the various formulations and highlight the status of preservative use in the treatment of anterior ocular surface diseases. RECENT FINDINGS: The primary components of ocular surface lubrication have been, in the past, based on various cellulose formulations that increase hydration. Advances in lubrication have come from areas of the human body requiring lubrication such as the skeletal joints as well as examining the use of natural components of the tear fluid...
October 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28736247/interleukin-1%C3%AE-affects-the-phospholipid-biosynthesis-of-fibroblast-like-synoviocytes-from-human-osteoarthritic-knee-joints
#12
K D Sluzalska, G Liebisch, G Lochnit, B Ishaque, H Hackstein, G Schmitz, M Rickert, J Steinmeyer
OBJECTIVE: Phospholipids (PLs), together with hyaluronan and lubricin, are involved in boundary lubrication within human articular joints. Levels of lubricants in synovial fluid (SF) have been found to be associated with the health status of the joint. However, the biosynthesis and release of PLs within human joints remains poorly understood. This study contributes to our understanding of the effects of cytokines on the biosynthesis of PLs using cultured fibroblast-like synoviocytes (FLS) from human osteoarthritic knee joints...
November 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28708257/aquaporin1-and-3-modification-as-a-result-of-chondrogenic-differentiation-of-human-mesenchymal-stem-cell
#13
Adriana Carol Eleonora Graziano, Rosanna Avola, Giovanna Pannuzzo, Venera Cardile
Chondrocytes are cells of articular cartilage particularly sensitive to water transport and ionic and osmotic changes from extracellular environment and responsible for the production of the synovial fluid. Aquaporins (AQPs) are a family of water and small solute transport channel proteins identified in several tissues, involved in physiological pathways and in manifold human diseases. In a recent period, AQP1 and 3 seem to have a role in metabolic water regulation in articular cartilage of load bearing joints...
July 14, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28702455/synergistic-interactions-of-a-synthetic-lubricin-mimetic-with-fibronectin-for-enhanced-wear-protection
#14
Roberto C Andresen Eguiluz, Sierra G Cook, Mingchee Tan, Cory N Brown, Noah J Pacifici, Mihir S Samak, Lawrence J Bonassar, David Putnam, Delphine Gourdon
Lubricin (LUB), a major mucinous glycoprotein of mammalian synovial fluids, is believed to provide excellent lubrication to cartilage surfaces. Consequently, when joint disease or replacement leads to increased friction and surface damage in the joint, robust synthetic LUB alternatives that could be used therapeutically to improve lubrication and surface protection are needed. Here, we report the characterization of a lubricating multiblock bottlebrush polymer whose architecture was inspired by LUB, and we investigate the role of fibronectin (FN), a glycoprotein found in the superficial zone of cartilage, in mediating the tribological properties of the polymer upon shear between mica surfaces...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/28688149/proteoglycan-4-and-hyaluronan-as-boundary-lubricants-for-model-contact-lens-hydrogels
#15
Michael Samsom, Yuno Iwabuchi, Heather Sheardown, Tannin A Schmidt
Clinical data show that in vitro contact lens friction is related to in vivo comfort. Solutions of biological lubricants hyaluronan (HA) and proteoglycan 4 (PRG4, also known as lubricin) reduce friction at a cornea-polydimethylsiloxane (PDMS) interface. The purpose of this study was to (1) determine if PRG4 can sorb to and lubricate model contact lens materials and (2) assess the boundary lubricating ability of PRG4 and HA compared to saline on model contact lens materials. PRG4 was obtained from bovine cartilage culture and suspended in saline at 300 µg/mL...
July 7, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28604608/friction-induced-mitochondrial-dysregulation-contributes-to-joint-deterioration-in-prg4-knockout-mice
#16
Kimberly A Waller, Ling X Zhang, Gregory D Jay
Deficiency of PRG4 (lubricin), the boundary lubricant in mammalian joints, contributes to increased joint friction accompanied by superficial and upper intermediate zone chondrocyte caspase-3 activation, as shown in lubricin-null (Prg4(-/-)) mice. Caspase-3 activity appears to be reversible upon the restitution of Prg4 either endogenously in vivo, in a gene trap mouse, or as an applied lubricant in vitro. In this study we show that intra-articular injection of human PRG4 in vivo in Prg4(-/-) mice prevented caspase-3 activation in superficial zone chondrocytes and was associated with a modest decrease in whole joint friction measured ex vivo using a joint pendulum method...
June 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28579418/early-genetic-restoration-of-lubricin-expression-in-transgenic-mice-mitigates-chondrocyte-peroxynitrite-release-and-caspase-3-activation
#17
K M Larson, L Zhang, G J Badger, G D Jay
OBJECTIVE: This study investigated the ability of endogenous lubricin secretion to restore joint health following a brief <21 day, postnatal lubricin-null state, in a C57BL/6J Prg4 gene trap (GT) mouse under the control of cre-recombinase. Previously we showed that re-expression of lubricin at 21 days was partly restorative of joint lubrication. DESIGN: The tibio-femoral joints of adult C57BL/6J mice containing lubricin, lacking lubricin, and postnatally lacking lubricin until restoration of lubricin expression at 7 days or 14 days of age were evaluated ex vivo...
September 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28578597/optimization-of-methods-for-articular-cartilage-surface-tissue-engineering-cell-density-and-transforming-growth-factor-beta-are-critical-for-self-assembly-and-lubricin-secretion
#18
Kenjiro Iwasa, A Hari Reddi
OBJECTIVE: Lubricin/superficial zone protein (SZP)/proteoglycan4 (PRG4) plays an important role in boundary lubrication in articular cartilage. Lubricin is secreted by superficial zone chondrocytes and synoviocytes of the synovium. The specific objective of this investigation is to optimize the methods for tissue engineering of articular cartilage surface. The aim of this study is to investigate the effect of cell density on the self-assembly of superficial zone chondrocytes and lubricin secretion as a functional assessment...
July 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28549901/degradation-of-proteoglycan-4-lubricin-by-cathepsin-s-potential-mechanism-for-diminished-ocular-surface-lubrication-in-sj%C3%A3-gren-s-syndrome
#19
Suresh C Regmi, Michael L Samsom, Miriam L Heynen, Gregory D Jay, Benjamin D Sullivan, Sruthi Srinivasan, Barbara Caffery, Lyndon Jones, Tannin A Schmidt
Sjögren's syndrome (SS) is an autoimmune disease affecting the lacrimal and salivary glands with hallmark clinical symptoms of dry eye and dry mouth. Recently, markedly increased cathepsin S (CTSS) activity has been observed in the tears of SS patients. Proteoglycan 4 (PRG4), also known as lubricin, is an effective boundary lubricant that is naturally present on the ocular surface. While PRG4 is susceptible to proteolytic digestion, the potential effect of CTSS on PRG4 remains unknown. The objective of this study was to assess the ability of CTSS to enzymatically degrade purified PRG4, and PRG4 naturally present in human tears, and alter ocular surface boundary lubricating properties...
August 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28529106/engineered-cartilage-regeneration-from-adipose-tissue-derived-mesenchymal-stem-cells-a-morphomolecular-study-on-osteoblast-chondrocyte-and-apoptosis-evaluation
#20
Marta Anna Szychlinska, Paola Castrogiovanni, Houda Nsir, Michelino Di Rosa, Claudia Guglielmino, Rosalba Parenti, Giovanna Calabrese, Elisabetta Pricoco, Lucia Salvatorelli, Gaetano Magro, Rosa Imbesi, Ali Mobasheri, Giuseppe Musumeci
The poor self-repair capacity of cartilage tissue in degenerative conditions, such as osteoarthritis (OA), has prompted the development of a variety of therapeutic approaches, such as cellular therapies and tissue engineering based on the use of mesenchymal stem cells (MSCs). The aim of this study is to demonstrate, for the first time, that the chondrocytes differentiated from rat adipose tissue derived-MSCs (AMSCs), are able to constitute a morphologically and biochemically healthy hyaline cartilage after 6 weeks of culture on a Collagen Cell Carrier (CCC) scaffold...
August 15, 2017: Experimental Cell Research
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