1
|
Kumar S, Adjei IM, Brown SB, Liseth O, Sharma B. Manganese dioxide nanoparticles protect cartilage from inflammation-induced oxidative stress. Biomaterials 2019; 224:119467. [PMID: 31557589 PMCID: PMC7025913 DOI: 10.1016/j.biomaterials.2019.119467] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 08/25/2019] [Accepted: 08/31/2019] [Indexed: 01/10/2023]
Abstract
Oxidative stress has been implicated in the pathogenesis of osteoarthritis and has become an important therapeutic target. Investigations of various antioxidant supplements, reactive oxidative species (ROS) pathway mediators, and free radical scavengers for treating osteoarthritis have demonstrated common disadvantages including poor bioavailability and stability, as well as rapid joint clearance or release profiles from delivery vehicles. Moreover, these therapies do not target cartilage, which irreversibly degenerates in the presence of oxidative stress. The goal of this study was to engineer a nanoparticle system capable of sustained retention in the joint space, localization to cartilage, and mitigation of oxidative stress. Towards this goal, ROS scavenging manganese dioxide nanoparticles with physicochemical properties (less than 20 nm and cationic) that facilitate their uptake into cartilage were developed and characterized. These particles penetrated through the depth of cartilage explants and were found both in the extracellular matrix as well as intracellularly within the resident chondrocytes. Furthermore, the particles demonstrated chondroprotection of cytokine-challenged cartilage explants by reducing the loss of glycosaminoglycans and release of nitric oxide. Quantitative PCR analysis revealed that the particles mitigated impacts of oxidative stress related genes in cytokine-challenged chondrocytes. When injected intra-articularly into rats, the particles persisted in the joint space over one week, with 75% of the initial signal remaining in the joint. Biodistribution and histological analysis revealed accumulation of particles at the chondral surfaces and colocalization of the particles with the lacunae of chondrocytes. The results suggest that the manganese dioxide nanoparticles could be a promising approach for the chondroprotection of osteoarthritic cartilage.
Collapse
Affiliation(s)
- Shreedevi Kumar
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive Biomedical Sciences Building JG-56, P.O. Box 116131, Gainesville, FL 32611-6131, USA
| | - Isaac M Adjei
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive Biomedical Sciences Building JG-56, P.O. Box 116131, Gainesville, FL 32611-6131, USA
| | - Shannon B Brown
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive Biomedical Sciences Building JG-56, P.O. Box 116131, Gainesville, FL 32611-6131, USA
| | - Olivia Liseth
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive Biomedical Sciences Building JG-56, P.O. Box 116131, Gainesville, FL 32611-6131, USA
| | - Blanka Sharma
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive Biomedical Sciences Building JG-56, P.O. Box 116131, Gainesville, FL 32611-6131, USA.
| |
Collapse
|
2
|
Is GERD a Factor in Osteonecrosis of the Jaw? Evidence of Pathology Linked to G6PD Deficiency and Sulfomucins. DISEASE MARKERS 2016; 2016:8376979. [PMID: 27773962 PMCID: PMC5059643 DOI: 10.1155/2016/8376979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/18/2016] [Accepted: 07/20/2016] [Indexed: 11/30/2022]
Abstract
Osteonecrosis of the jaw (ONJ), a rare side effect of bisphosphonate therapy, is a debilitating disorder with a poorly understood etiology. FDA's Adverse Event Reporting System (FAERS) provides the opportunity to investigate this disease. Our goals were to analyze FAERS data to discover possible relationships between ONJ and specific conditions and drugs and then to consult the scientific literature to deduce biological explanations. Our methodology revealed a very strong association between gastroesophageal reflux and bisphosphonate-induced ONJ, suggesting acidosis as a key factor. Overgrowth of acidophilic species, particularly Streptococcus mutans, in the oral microbiome in the context of insufficient acid buffering due to impaired salivary glands maintains the low pH that sustains damage to the mucosa. Significant associations between ONJ and adrenal insufficiency, vitamin C deficiency, and Sjögren's syndrome were found. Glucose 6 phosphate dehydrogenase (G6PD) deficiency can explain much of the pathology. An inability to maintain vitamin C and other antioxidants in the reduced form leads to vascular oxidative damage and impaired adrenal function. Thus, pathogen-induced acidosis, hypoxia, and insufficient antioxidant defenses together induce ONJ. G6PD deficiency and adrenal insufficiency are underlying factors. Impaired supply of adrenal-derived sulfated sterols such as DHEA sulfate may drive the disease process.
Collapse
|
3
|
Thompson CL, Patel R, Kelly TAN, Wann AKT, Hung CT, Chapple JP, Knight MM. Hedgehog signalling does not stimulate cartilage catabolism and is inhibited by Interleukin-1β. Arthritis Res Ther 2015; 17:373. [PMID: 26705100 PMCID: PMC4718026 DOI: 10.1186/s13075-015-0891-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 12/08/2015] [Indexed: 12/21/2022] Open
Abstract
Background In osteoarthritis, chondrocytes adopt an abnormal hypertrophic morphology and upregulate the expression of the extracellular matrix-degrading enzymes, MMP-13 and ADAMTS-5. The activation of the hedgehog signalling pathway has been established in osteoarthritis and is thought to influence both of these processes. However, the role of this pathway in the initiation and progression of osteoarthritis is unclear as previous studies have been unable to isolate the effects of hedgehog pathway activation from other pathological processes. In this study we test the hypothesis that hedgehog pathway activation causes cartilage degradation in healthy cartilage and in an in vitro model of inflammatory arthritis. Methods Isolated articular chondrocytes from the bovine metacarpal-phalangeal joint were stimulated for up to 24 hours with the agonist, recombinant Indian hedgehog (r-Ihh). ADAMTS-5 and MMP-13 gene expression was quantified by real-time PCR. In addition, healthy bovine cartilage explants were treated with r-Ihh or the hedgehog antagonist, cyclopamine, and sGAG release into the media was measured over 72 hours. Studies were repeated using chondrocytes and cartilage explants from human knee joint. Finally, studies were conducted to determine the effect of hedgehog pathway activation on matrix catabolism in the presence of the pro-inflammatory cytokine, IL-1β. Results Addition of r-Ihh activated hedgehog signalling, confirmed by upregulation of Gli1 and Ptch1 expression, but did not increase ADAMTS-5 or MMP-13 expression in bovine or human chondrocytes. Furthermore, r-Ihh did not induce sGAG release in healthy bovine or human cartilage explants. IL-1β treatment induced sGAG release, but this response was not altered by the stimulation or inhibition of hedgehog signalling. Hedgehog pathway activation was downregulated by IL-1β. Conversely, r-Ihh weakly suppressed IL-1β-induced ADAMTS-5 expression. Conclusion Our results show for the first time that Indian hedgehog does not cause extracellular matrix degradation in healthy ex vivo cartilage or in the presence of IL-1β and that IL-1β downregulates Indian hedgehog induced signalling. Thus, we suggest reported hedgehog induced matrix catabolism in osteoarthritis must be due to its interaction with pathological factors other than IL-1β. Hence, hedgehog signalling and its downstream effects are highly context-dependent. Electronic supplementary material The online version of this article (doi:10.1186/s13075-015-0891-z) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Clare L Thompson
- Institute of Bioengineering and School of Engineering and Material Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
| | - Riana Patel
- Institute of Bioengineering and School of Engineering and Material Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
| | - Terri-Ann N Kelly
- Institute of Bioengineering and School of Engineering and Material Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK. .,Department of Biomedical Engineering, Columbia University, New York, NY, USA.
| | - Angus K T Wann
- Institute of Bioengineering and School of Engineering and Material Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK. .,Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK.
| | - Clark T Hung
- Department of Biomedical Engineering, Columbia University, New York, NY, USA.
| | - J Paul Chapple
- Center for Endocrinology, William Harvey Research Institute, School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - Martin M Knight
- Institute of Bioengineering and School of Engineering and Material Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
| |
Collapse
|
4
|
Veronesi F, Fini M, Giavaresi G, Ongaro A, De Mattei M, Pellati A, Setti S, Tschon M. Experimentally induced cartilage degeneration treated by pulsed electromagnetic field stimulation; an in vitro study on bovine cartilage. BMC Musculoskelet Disord 2015; 16:308. [PMID: 26480822 PMCID: PMC4616002 DOI: 10.1186/s12891-015-0760-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 10/07/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Osteoarthritis (OA) is the final result of progressive alterations to articular cartilage structure, composition and cellularity, followed by an increase in the concentration of pro-inflammatory cytokines in joint synovial fluid. Even though the effect of pulsed electromagnetic field (PEMF) stimulation in counteracting OA progression and inflammation is of increasing interest, because of its anabolic and anti-inflammatory properties, the present study aimed to improve the knowledge on cartilage extracellular matrix (ECM) and chondrocyte changes related to the exposure of PEMF, from a histological and histomorphometric point of view. METHODS An in vitro OA model was realized, culturing bovine cartilage explants with a high dose of interleukin 1β (IL1β, 50 ng/ml) at different experimental times (24 h, and 7 and 21 days). The effects of PEMFs (75 Hz, 1.5 mT) were evaluated in cartilage explants treated with IL1β or not (control), in terms of cartilage structure, cellularity and proteoglycans, glycosaminoglycans, collagen II and transforming growth factor β1 synthesis by using histology, histomorphometry and immunohistochemistry. RESULTS Making a comparison with control cartilage, IL1β-treated explants showed a decrease in cartilage matrix, structure and cellularity parameters. PEMFs were able to counteract the progression of OA acting on both cartilage cellularity and ECM in cartilage previously treated with IL1β. Normal distribution (Kolmogroc-Smirnov test) and homoscedasticity (Levene test) of data were verified, then, the non-parametric Kruskal Wallis test followed by Mann-Whiteny U test for pairwise comparisons were performed. The p-value was adjusted according to the Dunn-Sidak correction. CONCLUSIONS These results, obtained by culturing and treating cartilage explants from two different joints, confirmed that PEMF stimulation can be used as adjuvant therapy to preserve cartilage from detrimental effects of high inflammatory cytokine levels during OA.
Collapse
Affiliation(s)
- Francesca Veronesi
- Department Rizzoli RIT, Rizzoli Orthopedic Institute, Laboratory of Biocompatibility, Innovative Technologies and Advanced Therapies, Bologna, 40136, Italy.
| | - Milena Fini
- Department Rizzoli RIT, Rizzoli Orthopedic Institute, Laboratory of Biocompatibility, Innovative Technologies and Advanced Therapies, Bologna, 40136, Italy. .,Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Bologna, 40136, Italy.
| | - Gianluca Giavaresi
- Department Rizzoli RIT, Rizzoli Orthopedic Institute, Laboratory of Biocompatibility, Innovative Technologies and Advanced Therapies, Bologna, 40136, Italy. .,Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Bologna, 40136, Italy.
| | - Alessia Ongaro
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, 44121, Italy.
| | - Monica De Mattei
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, 44121, Italy.
| | - Agnese Pellati
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, 44121, Italy.
| | - Stefania Setti
- IGEA - Clinical Biophysic, Carpi (Modena), 41012, Italy.
| | - Matilde Tschon
- Department Rizzoli RIT, Rizzoli Orthopedic Institute, Laboratory of Biocompatibility, Innovative Technologies and Advanced Therapies, Bologna, 40136, Italy. .,Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Bologna, 40136, Italy.
| |
Collapse
|
5
|
Cheleschi S, Cantarini L, Pascarelli NA, Collodel G, Lucherini OM, Galeazzi M, Fioravanti A. Possible chondroprotective effect of canakinumab: an in vitro study on human osteoarthritic chondrocytes. Cytokine 2014; 71:165-72. [PMID: 25461395 DOI: 10.1016/j.cyto.2014.10.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 10/09/2014] [Accepted: 10/28/2014] [Indexed: 01/14/2023]
Abstract
Canakinumab is a human IgGκ monoclonal antibody that neutralizes the activity of interleukin (IL)-1β blocking interaction with IL-1β receptors. Our study aimed to evaluate the in vitro effect of canakinumab on human osteoarthritic (OA) chondrocytes cultivated in the presence or absence of tumor necrosis factor (TNF)-α. Articular cartilage was obtained from the femoral heads of patients with osteoarthritis (OA). Chondrocytes were incubated with two concentrations (1μg/ml and 10μg/ml) of canakinumab alone or with TNF-α (10ng/ml) for 48h. We evaluated cell viability, release of proteoglycans (PG) and nitric oxide (NO) in culture medium, inducible nitric oxide synthase (iNOS) and metalloproteinanes (MMP)-1,3,13 gene expression, apoptosis, necrosis and morphological feature by transmission electron microscopy (TEM). Canakinumab alone did not have cytotoxic effect. Cell viability was reduced significantly (p<0.001) by TNF-α and restored by canakinumab at both concentrations used. TNF-α determined a significant decrease of PG (p<0.001) and an increase of NO (p<0.001) and MMP-1,3,13 gene expression. Canakinumab significantly increased the PG levels and decreased (1μg/ml, p<0.01; 10μg/ml, p<0.01) NO levels in cells cultured with TNF-α. The NO data were confirmed by the immunocytochemistry assay for iNOS. A significant reduction of MMP-1,3,13 gene expression was induced by canakinumab. Our experiments confirmed the pro-apoptotic effect of TNF-α and demonstrated a protective role of canakinumab. The results concerning biochemical data were further confirmed by the morphological findings obtained by TEM. We showed that canakinumab counteracts the negative effects of TNF-α on OA chondrocyte cultures and may have a potential chondroprotective role in OA.
Collapse
Affiliation(s)
- Sara Cheleschi
- Department of Medicine, Surgery and Neuroscience, Rheumatology Unit, University of Siena, Italy.
| | - Luca Cantarini
- Department of Medicine, Surgery and Neuroscience, Rheumatology Unit, University of Siena, Italy.
| | | | - Giulia Collodel
- Department of Molecular and Developmental Medicine, University of Siena, Italy.
| | - Orso Maria Lucherini
- Department of Medicine, Surgery and Neuroscience, Rheumatology Unit, University of Siena, Italy.
| | - Mauro Galeazzi
- Department of Medicine, Surgery and Neuroscience, Rheumatology Unit, University of Siena, Italy.
| | - Antonella Fioravanti
- Department of Medicine, Surgery and Neuroscience, Rheumatology Unit, University of Siena, Italy.
| |
Collapse
|
6
|
Andrographolide Exerts Chondroprotective Activity in Equine Cartilage Explant and Suppresses Interleukin-1 β -Induced MMP-2 Expression in Equine Chondrocyte Culture. INTERNATIONAL SCHOLARLY RESEARCH NOTICES 2014; 2014:464136. [PMID: 27379277 PMCID: PMC4897368 DOI: 10.1155/2014/464136] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 10/03/2014] [Accepted: 10/03/2014] [Indexed: 11/17/2022]
Abstract
Cartilage erosion in degenerative joint diseases leads to lameness in affected horses. It has been reported that andrographolide from Andrographis paniculata inhibited cartilage matrix-degrading enzymes. This study aimed to explore whether this compound protects equine cartilage degradation in the explant culture model and to determine its effect on matrix metalloproteinase-2 (MMP-2) expression, a matrix-degrading enzyme, in equine chondrocyte culture. Equine articular cartilage explant culture was induced by 25 ng/mL interleukin-1β, a key inducer of cartilage degeneration, in cultures with or without andrographolide ranging from 10 to 50 μM. After 3–21 days, they were analyzed for the markers of cartilage degradation. It was found that interleukin-1β increased the release of sulfated glycosaminoglycans and hyaluronan from the explants into the culture media consistently with the decrease in uronic acid and collagen content in the cartilage explants. These catabolic effects were inhibited when cotreated with interleukin-1β and andrographolide. In primary equine chondrocytes, andrographolide suppressed interleukin-1β-induced MMP-2 mRNA expression and MMP-2 activity in the culture medium. These results confirmed the in vitro potent chondroprotective activities of this compound which were performed in cartilage explants and on a cellular level. These may indicate the application of andrographolide for therapeutic use in equine degenerative joint diseases.
Collapse
|
7
|
Palmer AW, Wilson CG, Baum EJ, Levenston ME. Composition-function relationships during IL-1-induced cartilage degradation and recovery. Osteoarthritis Cartilage 2009; 17:1029-39. [PMID: 19281879 PMCID: PMC2745941 DOI: 10.1016/j.joca.2009.02.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2008] [Revised: 11/24/2008] [Accepted: 02/16/2009] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To examine the relationships between biochemical composition and mechanical properties of articular cartilage explants during interleukin-1 (IL-1)-induced degradation and post-exposure recovery. DESIGN Bovine articular cartilage explants were cultured for up to 32 days with or without 20 ng/mL IL-1. The dynamic shear modulus |G*(dyn)| and equilibrium and dynamic unconfined compression moduli (E(equil) and |E*(dyn)|) were measured at intervals throughout the culture period. In a subsequent recovery study, explants were cultured for 4 days with or without 20ng/mL IL-1 and for an additional 16 days in control media. The dynamic moduli |E*(dyn)| and |G*(dyn)| were measured at intervals during degeneration and recovery. Conditioned media and explant digests were assayed for sulfated glycosaminoglycans (sGAG) and collagen content. RESULTS Continuous IL-1 stimulation triggered progressive decreases in E(equil), |E*(dyn)|, and |G*(dyn)| concomitant with the sequential release of sGAG and collagen from the explants. Brief IL-1 exposure resulted in a short release of sGAG but not collagen, followed by a gradual and incomplete repopulation of sGAG. The temporary sGAG depletion was associated with decreases in both |E*(dyn)| and |G*(dyn)| which also recovered after removal of IL-1. During IL-1-induced degradation and post-exposure recovery, explant mechanical properties correlated well with tissue sGAG concentration. CONCLUSIONS As previously shown for developing cartilages and engineered cartilage constructs, cytokine-induced changes in sGAG concentration (i.e., fixed charge density) are coincident with changes in compressive and shear properties of articular cartilage. Further, recovery of cartilage mechanical properties can be achieved by relief from proinflammatory stimuli and subsequent restoration of tissue sGAG concentration.
Collapse
Affiliation(s)
- Ashley W. Palmer
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332,Parker H. Petit Institute for Bioengineering and Bioscience, Atlanta, GA 30332
| | - Christopher G. Wilson
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332,Parker H. Petit Institute for Bioengineering and Bioscience, Atlanta, GA 30332
| | - Elyse J. Baum
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332,Parker H. Petit Institute for Bioengineering and Bioscience, Atlanta, GA 30332
| | - Marc E. Levenston
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332,Parker H. Petit Institute for Bioengineering and Bioscience, Atlanta, GA 30332,To whom correspondence should be addressed: Marc E. Levenston, Ph.D. Stanford University Department of Mechanical Engineering 233 Durand Building Stanford, CA 94305-4038 phone: (650) 723-9464 fax: (650) 725-1587
| |
Collapse
|
8
|
Pharmacological characterization of P2X1 and P2X3 purinergic receptors in bovine chondrocytes. Osteoarthritis Cartilage 2008; 16:1421-9. [PMID: 18448363 DOI: 10.1016/j.joca.2008.03.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2007] [Accepted: 03/24/2008] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The aim of the present study is that of characterizing, for the first time in a quantitative way, from a biochemical, physico chemical and functional point of view P2X(1) and P2X(3) purinergic receptors in bovine chondrocytes. The affinity and the potency of typical purinergic ligands were studied through competition binding experiments and their role in modulating chondrocyte actvities was investigated by analyzing nitric oxide (NO) and prostaglandin E2 (PGE(2)) release. METHODS Saturation, competition binding experiments, western blotting and immunohistochemistry assays on the P2X(1) and P2X(3) purinergic receptors in bovine chondrocytes were performed. Thermodynamic analysis of the P2X(1) and P2X(3) purinergic binding was studied to investigate the forces driving drug-receptor coupling. In the functional assays (NO and PGE(2) release) the potency of purinergic agonists and antagonists was evaluated. RESULTS Bovine chondrocytes expressed P2X(1) and P2X(3) purinergic receptors and thermodynamic parameters indicated that purinergic binding is enthalpy- and entropy-driven for agonists and totally entropy-driven for antagonists. Typical purinergic agonists such as adenosine 5'-triphosphate (ATP) and alpha,beta-methyleneATP were able to increase NO and PGE(2) release. A purinergic antagonist, A317491, was able to block the stimulatory effect on functional experiments mediated by the agonists. CONCLUSIONS These data demonstrate for the first time the presence of functional P2X(1) and P2X(3) purinergic receptors in bovine chondrocytes. Agonists and antagonists are thermodynamically discriminated and are able to modulate functional responses such as NO and PGE(2) release. These results suggest the potential role of novel purinergic antagonists in the treatment of pathophysiological diseases linked to the inflammation and involved in articular cartilage resorption.
Collapse
|
9
|
Lima EG, Tan AR, Tai T, Bian L, Stoker AM, Ateshian GA, Cook JL, Hung CT. Differences in Interleukin-1 Response Between Engineered and Native Cartilage. Tissue Eng Part A 2008; 14:1721-30. [DOI: 10.1089/ten.tea.2007.0347] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Eric G. Lima
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Andrea R. Tan
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Timon Tai
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Liming Bian
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Aaron M. Stoker
- Comparative Orthopaedic Laboratory, University of Missouri, Columbia, Missouri
| | - Gerard A. Ateshian
- Department of Biomedical Engineering, Columbia University, New York, New York
- Department of Mechanical Engineering, Columbia University, New York, New York
| | - James L. Cook
- Comparative Orthopaedic Laboratory, University of Missouri, Columbia, Missouri
| | - Clark T. Hung
- Department of Biomedical Engineering, Columbia University, New York, New York
| |
Collapse
|
10
|
Yoon DM, Fisher JP. Chondrocyte signaling and artificial matrices for articular cartilage engineering. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 585:67-86. [PMID: 17120777 DOI: 10.1007/978-0-387-34133-0_5] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Chondrocytes depend on their environment to aid in their expression of appropriate proteins. It has been found that the interaction of integrin receptors with chondrocytes effects the production of extracellular molecules such as type II collagen and aggrecan. Additionally, the presence of growth factors such as IGF-1, TGF-beta1 and BMP-7 induce various signaling pathways that also aid in transducing phenotypic expressions by chondrocytes. Natural and synthetic polymers have been used to act as a scaffold for chondrocytes. The production of extracellular matrix proteins by chondrocytes has been studied. As tissue engineers, it is advantageous to explore the possibility of how altering biomaterial properties affect the signaling cascades by activation of receptors and transduction through the cytoplasm. This vital information will be able to aid in the future of engineering an appropriate biomaterial that can incorporate chondrocytes to act as a scaffold for articular cartilage.
Collapse
Affiliation(s)
- Diana M Yoon
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, USA
| | | |
Collapse
|
11
|
Andjelkov N, Elvenes J, Martin J, Johansen O. Opiate regulation of IL-1β and TNF-α in cultured human articular chondrocytes. Biochem Biophys Res Commun 2005; 333:1295-9. [PMID: 15979578 DOI: 10.1016/j.bbrc.2005.06.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2005] [Accepted: 06/08/2005] [Indexed: 11/16/2022]
Abstract
In order to investigate if beta-endorphins anti-inflammatory effect in cartilage-damaging states is mediated via tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1 beta), we examined its influence on these two cytokines in vitro. Human articular chondrocytes were obtained from patients undergoing total knee arthroplasty and stimulated with beta-endorphin (60-6000 ng/ml). Protein levels of TNF-alpha and IL-1 beta were measured by ELISA in supernatants from articular chondrocyte cultures. beta-Endorphin significantly increased the levels of IL-1 beta for all concentrations used after 15 min incubation, and when stimulated with 600 and 6000 ng/ml after 24 h incubation. The opioid-induced increase in IL-1 beta was blocked by naltrexone in the group tested. TNF-alpha expression was also significantly stimulated by 60 and 600 ng/ml beta-endorphin after 15 min, an effect blocked by naltrexone in the group tested. These findings indicate that the mechanism of beta-endorphins anti-inflammatory influence in cartilage-damaging states is not apparently mediated via these two cytokines modulation.
Collapse
Affiliation(s)
- Nenad Andjelkov
- Department of Orthopaedics, University Hospital of Northern-Norway, 9038 Tromsø, Norway.
| | | | | | | |
Collapse
|