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Farrell E, Fahy N, Ryan AE, Flatharta CO, O'Flynn L, Ritter T, Murphy JM. vIL-10-overexpressing human MSCs modulate naïve and activated T lymphocytes following induction of collagenase-induced osteoarthritis. Stem Cell Res Ther 2016; 7:74. [PMID: 27194025 PMCID: PMC4870800 DOI: 10.1186/s13287-016-0331-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 03/14/2016] [Accepted: 04/26/2016] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Recent efforts in osteoarthritis (OA) research have highlighted synovial inflammation and involvement of immune cells in disease onset and progression. We sought to establish the in-vivo immune response in collagenase-induced OA and investigate the ability of human mesenchymal stem cells (hMSCs) overexpressing viral interleukin 10 (vIL-10) to modulate immune populations and delay/prevent disease progression. METHODS Eight-week-old male C57BL/6 mice were injected with 1 U type VII collagenase over two consecutive days. At day 7, 20,000 hMSCs overexpressing vIL-10 were injected into the affected knee. Control groups comprised of vehicle, 20,000 untransduced or adNull-transduced MSCs or virus alone. Six weeks later knees were harvested for histological analysis and popliteal and inguinal lymph nodes for flow cytometric analysis. RESULTS At this time there was no significant difference in knee OA scores between any of the groups. A trend toward more damage in animals treated with hMSCs was observed. Interestingly there was a significant reduction in the amount of activated CD4 and CD8 T cells in the vIL-10-expressing hMSC group. CONCLUSIONS vIL-10-overexpressing hMSCs can induce long-term reduction in activated T cells in draining lymph nodes of mice with collagenase-induced OA. This could lead to reduced OA severity or disease progression over the long term.
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Affiliation(s)
- Eric Farrell
- Department of Oral and Maxillofacial Surgery, Special Dental Care and Orthodontics, Erasmus MC, University Medical Centre, Room Ee1614, Erasmus MC, Wytemaweg 80, Rotterdam, 3015CN, The Netherlands. .,Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland.
| | - Niamh Fahy
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland.,Musculoskeletal Regeneration, AO Research Institute Davos (ARI), Davos, Switzerland
| | - Aideen E Ryan
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland.,College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland.,Discipline of Pharmacology and Therapeutics, National University of Ireland Galway, Galway, Ireland
| | - Cathal O Flatharta
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
| | - Lisa O'Flynn
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland.,College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland.,Orbsen Therapeutics Ltd, Galway, Ireland
| | - Thomas Ritter
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland.,College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland
| | - J Mary Murphy
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
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102
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El-Tawil S, Arendt E, Parker D. Position statement: the epidemiology, pathogenesis and risk factors of osteoarthritis of the knee. J ISAKOS 2016. [DOI: 10.1136/jisakos-2015-000002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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103
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de Munter W, van den Bosch MH, Slöetjes AW, Croce KJ, Vogl T, Roth J, Koenders MI, van de Loo FA, van den Berg WB, van der Kraan PM, van Lent PL. High LDL levels lead to increased synovial inflammation and accelerated ectopic bone formation during experimental osteoarthritis. Osteoarthritis Cartilage 2016; 24:844-55. [PMID: 26687826 DOI: 10.1016/j.joca.2015.11.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 11/03/2015] [Accepted: 11/24/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE A relation between osteoarthritis (OA) and increased cholesterol levels is apparent. In the present study we investigate OA pathology in apolipoprotein E (ApoE)(-)(/-) mice with and without a cholesterol-rich diet, a model for high systemic low density lipoprotein (LDL) cholesterol levels independent of weight. METHOD Wild type (WT), Apoe(-)(/-), S100a9(-/-) and Apoe(-)(/-)S100a9(-/-) mice (C57BL/6 background) received a standard or cholesterol-rich diet. Experimental OA was induced by intra-articular injection of collagenase and animals were sacrificed at day 10 and day 36. RESULTS Although minimal differences in cartilage damage were found between the WT and ApoE(-)(/-) mice, increased synovial thickening was found in the latter. Thirty-six days after OA-induction, ApoE(-)(/-) mice on a standard diet showed increased ectopic bone formation, particularly at the medial collateral ligament, compared with OA in WT mice. Furthermore, a significant increase in synovial gene expression of both S100a8 and S100a9 and S100A8/S100A9 protein levels was found in ApoE(-)(/-) mice, suggesting an activated inflammatory status of synovial cells. In both ApoE(-)(/-) and WT mice, addition of a cholesterol-rich diet resulted in excessive bone formation in the medial collateral ligament at late-time-point OA. Interestingly, at the early time point, proteoglycan deposition was already significantly increased in ApoE(-)(/-) mice compared with WT mice. Mice deficient for both ApoE and S100a9 also showed increased ectopic bone formation, but not synovial activation, suggesting a role for S100-proteins in cholesterol-mediated synovial activation. CONCLUSIONS Increased cholesterol levels strongly elevate synovial activation and ectopic bone formation in early-stage collagenase-induced OA.
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Affiliation(s)
- W de Munter
- Experimental Rheumatology, Radboud university medical center, Nijmegen, The Netherlands.
| | - M H van den Bosch
- Experimental Rheumatology, Radboud university medical center, Nijmegen, The Netherlands.
| | - A W Slöetjes
- Experimental Rheumatology, Radboud university medical center, Nijmegen, The Netherlands.
| | - K J Croce
- Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - T Vogl
- Institute of Immunology, University of Muenster, Muenster, Germany.
| | - J Roth
- Institute of Immunology, University of Muenster, Muenster, Germany.
| | - M I Koenders
- Experimental Rheumatology, Radboud university medical center, Nijmegen, The Netherlands.
| | - F A van de Loo
- Experimental Rheumatology, Radboud university medical center, Nijmegen, The Netherlands.
| | - W B van den Berg
- Experimental Rheumatology, Radboud university medical center, Nijmegen, The Netherlands.
| | - P M van der Kraan
- Experimental Rheumatology, Radboud university medical center, Nijmegen, The Netherlands.
| | - P L van Lent
- Experimental Rheumatology, Radboud university medical center, Nijmegen, The Netherlands.
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104
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Veronesi F, Della Bella E, Cepollaro S, Brogini S, Martini L, Fini M. Novel therapeutic targets in osteoarthritis: Narrative review on knock-out genes involved in disease development in mouse animal models. Cytotherapy 2016; 18:593-612. [DOI: 10.1016/j.jcyt.2016.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 01/21/2016] [Accepted: 02/04/2016] [Indexed: 01/17/2023]
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105
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den Hollander W, Meulenbelt I. DNA Methylation in Osteoarthritis. Curr Genomics 2016; 16:419-26. [PMID: 27019616 PMCID: PMC4765529 DOI: 10.2174/1389202916666150817212711] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 06/26/2015] [Accepted: 07/05/2015] [Indexed: 12/20/2022] Open
Abstract
Osteoarthritis (OA) is a prevalent disease of articular joints and primarily characterized by degradation and calcification of articular cartilage. Presently, no effective treatment other than pain relief exists and patients ultimately need to undergo replacement surgery of the affected joint. During disease progression articular chondrocytes, the single cell type present in articular cartilage, show altered transcriptional profiles and undergo phenotypic changes that resemble the terminal differentiation route apparent in growth plate chondrocytes. Hence, given its prominent function in both regulating gene expression and maintaining cellular phenotypes, DNA methylation of CpG dinucleotides is intensively studied in the context of OA. An increasing number of studies have been published that employed a targeted approach on genes known to play a role in OA pathophysiology. As of such, it has become clear that OA responsive DNA methylation changes seem to mediate disease associated aberrant gene expression. Furthermore, established OA susceptibility alleles such as GDF5 and DIO2 appear to confer OA risk via DNA methylation and respective pathophysiological expression changes. In more recent years, genome wide profiling of DNA methylation in OA affected articular cartilage has emerged as a powerful tool to address the epigenetic changes in their entirety, which has resulted in the identification of putative patient subgroups as well as generic OA associated pathways.
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106
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Miller RE, Belmadani A, Ishihara S, Tran PB, Ren D, Miller RJ, Malfait AM. Damage-associated molecular patterns generated in osteoarthritis directly excite murine nociceptive neurons through Toll-like receptor 4. Arthritis Rheumatol 2016; 67:2933-43. [PMID: 26245312 DOI: 10.1002/art.39291] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 07/16/2015] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To determine whether selected damage-associated molecular patterns (DAMPs) present in the osteoarthritic (OA) joints of mice excite nociceptors through Toll-like receptor 4 (TLR-4). METHODS The ability of S100A8 and α2 -macroglobulin to excite nociceptors was determined by measuring the release of monocyte chemoattractant protein 1 (MCP-1) by cultured dorsal root ganglion (DRG) cells as well as by measuring the intracellular calcium concentration ([Ca(2+) ]i ) in cultured DRG neurons from naive mice or from mice that had undergone surgical destabilization of the medial meniscus (DMM) 8 weeks previously. The role of TLR-4 was assessed using TLR-4(-/-) cells or a TLR-4 inhibitor. The [Ca(2+) ]i in neurons within ex vivo intact DRGs was measured in samples from Pirt-GCaMP3 mice. Neuronal expression of the Tlr4 gene was determined by in situ hybridization. DMM surgery was performed in wild-type and TLR-4(-/-) mice; mechanical allodynia was monitored, and joint damage was assessed histologically after 16 weeks. RESULTS DRG neurons from both naive and DMM mice expressed Tlr4. Both S100A8 and α2 -macroglobulin stimulated release of the proalgesic chemokine MCP-1 in DRG cultures, and the neurons rapidly responded to S100A8 and α2 -macroglobulin with increased [Ca(2+) ]i . Blocking TLR-4 inhibited these effects. Neurons within intact DRGs responded to the TLR-4 agonist lipopolysaccharide. In both of the calcium-imaging assays, it was primarily the nociceptor population of neurons that responded to TLR-4 ligands. TLR-4(-/-) mice were not protected from mechanical allodynia or from joint damage associated with DMM. CONCLUSION Our experiments suggest a role of TLR-4 signaling in the excitation of nociceptors by selected DAMPs. Further research is needed to delineate the importance of this pathway in relation to OA pain.
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107
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Abstract
The nature of the gastrointestinal microbiome determines the reservoir of lipopolysaccharide, which can migrate from the gut into the circulation, where it contributes to low-grade inflammation. Osteoarthritis (OA) is a low-grade inflammatory condition, and the elevation of levels of lipopolysaccharide in association with obesity and metabolic syndrome could contribute to OA. A 'two- hit' model of OA susceptibility and potentiation suggests that lipopolysaccharide primes the proinflammatory innate immune response via Toll-like receptor 4 and that progression to a full-blown inflammatory response and structural damage of the joint results from coexisting complementary mechanisms, such as inflammasome activation or assembly by damage-associated molecular patterns in the form of fragmented cartilage-matrix molecules. Lipopolysaccharide could be considered a major hidden risk factor that provides a unifying mechanism to explain the association between obesity, metabolic syndrome and OA.
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Affiliation(s)
- Zeyu Huang
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, No. 37 Guo Xue Road, Chengdu, Sichuan, 610041, People's Republic of China
| | - Virginia Byers Kraus
- Duke Molecular Physiology Institute and Division of Rheumatology, Department of Medicine, Duke University School of Medicine, 300 North Duke Street, Durham, North Carolina 27701, USA
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108
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Iqbal SM, Leonard C, Regmi SC, De Rantere D, Tailor P, Ren G, Ishida H, Hsu C, Abubacker S, Pang DS, Salo PT, Vogel HJ, Hart DA, Waterhouse CC, Jay GD, Schmidt TA, Krawetz RJ. Lubricin/Proteoglycan 4 binds to and regulates the activity of Toll-Like Receptors In Vitro. Sci Rep 2016; 6:18910. [PMID: 26752378 PMCID: PMC4707532 DOI: 10.1038/srep18910] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 11/30/2015] [Indexed: 01/03/2023] Open
Abstract
Proteoglycan 4 (PRG4/lubricin) is secreted by cells that reside in articular cartilage and line the synovial joint. Lubricin may play a role in modulating inflammatory responses through interaction with CD44. This led us to examine if lubricin could be playing a larger role in the modulation of inflammation/immunity through interaction with Toll-like receptors (TLRs). Human Embryonic Kidney (HEK) cells overexpressing TLRs 2, 4 or 5 and surface plasmon resonance were employed to determine if full length recombinant human lubricin was able to bind to and activate TLRs. Primary human synovial fibroblasts were also examined using flow cytometry and Luminex multiplex ELISA. A rat destabilization model of osteoarthritis (OA) was used to determine if lubricin injections were able to regulate pain and/or inflammation in vivo. Lubricin can bind to and regulate the activity of TLRs, leading to downstream changes in inflammatory signalling independent of HA. We confirmed these findings in vivo through intra-articular injections of lubricin in a rat OA model where the inhibition of systemic inflammatory signaling and reduction in pain were observed. Lubricin plays an important role in regulating the inflammatory environment under both homeostatic and tissue injury states.
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Affiliation(s)
- S M Iqbal
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - C Leonard
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - S C Regmi
- Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - D De Rantere
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - P Tailor
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - G Ren
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - H Ishida
- Faculty of Science, University of Calgary, Calgary, Alberta, Canada
| | - Cy Hsu
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - S Abubacker
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - D Sj Pang
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
| | - P T Salo
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - H J Vogel
- Faculty of Science, University of Calgary, Calgary, Alberta, Canada
| | - D A Hart
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - C C Waterhouse
- Snyder Institute, Cummings School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - G D Jay
- Faculty of Medicine, Brown University, Providence, Rhode Island, United States
| | - T A Schmidt
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.,Schulich School of Engineering, University of Calgary, Calgary, Alberta, Canada
| | - R J Krawetz
- McCaig Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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109
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Ometto F, Friso L, Astorri D, Botsios C, Raffeiner B, Punzi L, Doria A. Calprotectin in rheumatic diseases. Exp Biol Med (Maywood) 2016; 242:859-873. [PMID: 27895095 DOI: 10.1177/1535370216681551] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Calprotectin is a heterodimer formed by two proteins, S100A8 and S100A9, which are mainly produced by activated monocytes and neutrophils in the circulation and in inflamed tissues. The implication of calprotectin in the inflammatory process has already been demonstrated, but its role in the pathogenesis, diagnosis, and monitoring of rheumatic diseases has gained great attention in recent years. Calprotectin, being stable at room temperature, is a candidate biomarker for the follow-up of disease activity in many autoimmune disorders, where it can predict response to treatment or disease relapse. There is evidence that a number of immunomodulators, including TNF-α inhibitors, may reduce calprotectin expression. S100A8 and S100A9 have a potential role as a target of treatment in murine models of autoimmune disorders, since the direct or indirect blockade of these proteins results in amelioration of the disease process. In this review, we will go over the biologic functions of calprotectin which might be involved in the etiology of rheumatic disorders. We will also report evidence of its potential use as a disease biomarker. Impact statement Calprotectin is an acute-phase protein produced by monocytes and neutrophils in the circulation and inflamed tissues. Calprotectin seems to be more sensitive than CRP, being able to detect minimal residual inflammation and is a candidate biomarker in inflammatory diseases. High serum levels are associated with some severe manifestations of rheumatic diseases, such as glomerulonephritis and lung fibrosis. Calprotectin levels in other fluids, such as saliva and synovial fluid, might be helpful in the diagnosis of rheumatic diseases. Of interest is also the potential role of calprotectin as a target of treatment.
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Affiliation(s)
- Francesca Ometto
- Medicine Department - DIMED, Rheumatology Unit, University of Padova, Padova 35128, Italy
| | - Lara Friso
- Medicine Department - DIMED, Rheumatology Unit, University of Padova, Padova 35128, Italy
| | - Davide Astorri
- Medicine Department - DIMED, Rheumatology Unit, University of Padova, Padova 35128, Italy
| | - Costantino Botsios
- Medicine Department - DIMED, Rheumatology Unit, University of Padova, Padova 35128, Italy
| | - Bernd Raffeiner
- Medicine Department - DIMED, Rheumatology Unit, University of Padova, Padova 35128, Italy
| | - Leonardo Punzi
- Medicine Department - DIMED, Rheumatology Unit, University of Padova, Padova 35128, Italy
| | - Andrea Doria
- Medicine Department - DIMED, Rheumatology Unit, University of Padova, Padova 35128, Italy
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Malfait AM. Osteoarthritis year in review 2015: biology. Osteoarthritis Cartilage 2016; 24:21-6. [PMID: 26707989 PMCID: PMC4693144 DOI: 10.1016/j.joca.2015.09.010] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/04/2015] [Accepted: 09/14/2015] [Indexed: 02/07/2023]
Abstract
This review highlights a selection of recently published literature in the area of osteoarthritis biology. Major themes transpiring from a PubMed search covering the year between the 2014 and the 2015 Osteoarthritis Research Society International (OARSI) World Congress are explored. Inflammation emerged as a significant theme, revealing complex pathways that drive dramatic changes in cartilage homeostasis and in the synovium. Highlights include a homeostatic role for CXC chemokines in cartilage, identification of the zinc-ZIP8-MTF1 axis as an essential regulator of cartilage catabolism, and the discovery that a small aggrecan fragment can have catabolic and pro-inflammatory effects through Toll-like receptor 2. Synovitis can promote joint damage, partly through alarmins such as S100A8. Synovitis and synovial expression of the pro-algesic neurotrophin, Nerve Growth Factor, are associated with pain. Increasingly, researchers are considering specific pathogenic pathways that may operate in distinct subsets of osteoarthritis associated with distinct risk factors, including obesity, age, and joint injury. In obesity, the contribution of metabolic factors and diet is under intense investigation. The role of autophagy and oxidative stress in age-related osteoarthritis has been further explored. This approach may open avenues for targeted treatment of distinct phenotypes of osteoarthritis. Finally, a small selection of novel analgesic targets in the periphery is briefly discussed, including calcitonin gene-related peptide and the neuronal sodium voltage-gated channels, Nav1.7 and Nav1.8.
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Affiliation(s)
- A M Malfait
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA; Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA.
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111
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van den Bosch MH, Blom AB, Schelbergen RFP, Vogl T, Roth JP, Slöetjes AW, van den Berg WB, van der Kraan PM, van Lent PLEM. Induction of Canonical Wnt Signaling by the Alarmins S100A8/A9 in Murine Knee Joints: Implications for Osteoarthritis. Arthritis Rheumatol 2015; 68:152-63. [DOI: 10.1002/art.39420] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 08/27/2015] [Indexed: 01/27/2023]
Affiliation(s)
| | - Arjen B. Blom
- Radboud University Medical Center; Nijmegen The Netherlands
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112
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Berenbaum F, van den Berg WB. Inflammation in osteoarthritis: changing views. Osteoarthritis Cartilage 2015; 23:1823-4. [PMID: 26521727 DOI: 10.1016/j.joca.2015.09.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 09/21/2015] [Indexed: 02/02/2023]
Affiliation(s)
- F Berenbaum
- UMR_S938, CDR Saint-Antoine - INSERM - University Pierre & Marie Curie Paris VI, Sorbonne Universités, Department of Rheumatology, AP-HP Saint-Antoine Hospital, DHU i2B, Paris, France
| | - W B van den Berg
- Rheumatology Research and Advanced Therapeutics, Radboud University Nijmegen Medical Center, Geert Grooteplein 28, 6525GA, Nijmegen, The Netherlands.
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113
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Inflammation in joint injury and post-traumatic osteoarthritis. Osteoarthritis Cartilage 2015; 23:1825-34. [PMID: 26521728 PMCID: PMC4630675 DOI: 10.1016/j.joca.2015.08.015] [Citation(s) in RCA: 293] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 08/24/2015] [Accepted: 08/28/2015] [Indexed: 02/07/2023]
Abstract
Inflammation is a variable feature of osteoarthritis (OA), associated with joint symptoms and progression of disease. Signs of inflammation can be observed in joint fluids and tissues from patients with joint injuries at risk for development of post-traumatic osteoarthritis (PTOA). Furthermore, inflammatory mechanisms are hypothesized to contribute to the risk of OA development and progression after injury. Animal models of PTOA have been instrumental in understanding factors and mechanisms involved in chronic progressive cartilage degradation observed after a predisposing injury. Specific aspects of inflammation observed in humans, including cytokine and chemokine production, synovial reaction, cellular infiltration and inflammatory pathway activation, are also observed in models of PTOA. Many of these models are now being utilized to understand the impact of post-injury inflammatory response on PTOA development and progression, including risk of progressive cartilage degeneration and development of chronic symptoms post-injury. As evidenced from these models, a vigorous inflammatory response occurs very early after joint injury but is then sustained at a lower level at the later phases. This early inflammatory response contributes to the development of PTOA features including cartilage erosion and is potentially modifiable, but specific mediators may also play a role in tissue repair. Although the optimal approach and timing of anti-inflammatory interventions after joint injury are yet to be determined, this body of work should provide hope for the future of disease modification tin PTOA.
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114
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Gallo J, Raska M, Konttinen YT, Nich C, Goodman SB. Innate immunity sensors participating in pathophysiology of joint diseases: a brief overview. J Long Term Eff Med Implants 2015; 24:297-317. [PMID: 25747032 DOI: 10.1615/jlongtermeffmedimplants.2014010825] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The innate immune system consists of functionally specialized "modules" that are activated in response to a particular set of stimuli via sensors located on the surface or inside the tissue cells. These cells screen tissues for a wide range of exogenous and endogenous danger/damage-induced signals with the aim to reject or tolerate them and maintain tissue integrity. In this line of thinking, inflammation evolved as an adaptive tool for restoring tissue homeostasis. A number of diseases are mediated by a maladaptation of the innate immune response, perpetuating chronic inflammation and tissue damage. Here, we review recent evidence on the cross talk between innate immune sensors and development of rheumatoid arthritis, osteoarthritis, and aseptic loosening of total joint replacements. In relation to the latter topic, there is a growing body of evidence that aseptic loosening and periprosthetic osteolysis results from long-term maladaptation of periprosthetic tissues to the presence of by-products continuously released from an artificial joint.
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Affiliation(s)
- Jiri Gallo
- Department of Orthopedics, University Hospital and Faculty of Medicine and Dentistry, Palacky University, Olomouc 775 20, Czech Republic
| | - Milan Raska
- Department of Immunology, Faculty of Medicine & Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic
| | - Yrjo T Konttinen
- Department of Clinical Medicine, University of Helsinki and ORTON Orthopaedic Hospital of the Invalid Foundation, Helsinki, Finland
| | - Christophe Nich
- Laboratoire de Biomecanique et Biomateriaux Osteo-Articulaires - UMR CNRS 7052, Faculte de Medecine - Universite Paris 7, Paris, France; Department of Orthopaedic Surgery, European Teaching Hospital, Assistance Publique - Hopitaux de Paris
| | - Stuart B Goodman
- Department of Orthopaedic Surgery Stanford University Medical Center Redwood City, CA
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115
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Liu X, Liu R, Croker BA, Lawlor KE, Smyth GK, Wicks IP. Distinctive pro-inflammatory gene signatures induced in articular chondrocytes by oncostatin M and IL-6 are regulated by Suppressor of Cytokine Signaling-3. Osteoarthritis Cartilage 2015; 23:1743-54. [PMID: 26045176 DOI: 10.1016/j.joca.2015.05.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 05/08/2015] [Accepted: 05/20/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To describe gene expression in murine chondrocytes stimulated with IL-6 family cytokines and the impact of deleting Suppressor of Cytokine Signaling-3 (SOCS-3) in this cell type. METHOD Primary chondrocytes were isolated from wild type and SOCS-3-deficient (Socs3(Δ/Δcol2)) mice and stimulated with oncostatin M (OSM), IL-6 plus the soluble IL-6 receptor (IL-6/sIL-6R), IL-11 or leukemia inhibitory factor (LIF) for 4 h. Total RNA was extracted and gene expression was evaluated by microarray analysis. Validation of the microarray results was performed using Taqman probes on RNA derived from chondrocytes stimulated for 1, 2, 4 or 8 h. Gene ontology was characterized using DAVID (database for annotation, visualization and integrated discovery). RESULTS Multiple genes, including Bcl3, Junb, Tgm1, Angptl4 and Lrg1, were upregulated in chondrocytes stimulated with each gp130 cytokine. The gene transcription profile in response to OSM stimulation was pro-inflammatory and was highly correlated to IL-6/sIL-6R, rather than IL-11 or LIF. In the absence of SOCS-3, OSM and IL-6/sIL-6R stimulation induced an interferon (IFN)-like gene signature, including expression of IL-31ra and S100a9. CONCLUSION While each gp130 cytokine induced a transcriptional response in chondrocytes, OSM- and IL-6/sIL-6R were the most potent members of this cytokine family. SOCS-3 plays an important regulatory role in this cell type, as it does in hematopoietic cells. Our results provide new insights into a hierarchy of gp130-induced transcriptional responses in chondrocytes that is normally restrained by SOCS-3 and suggest therapeutic inhibition of OSM may have benefit over and above antagonism of IL-6 during inflammatory arthritis.
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Affiliation(s)
- X Liu
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - R Liu
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, 3052, Australia
| | - B A Croker
- Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA, 02115, USA
| | - K E Lawlor
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - G K Smyth
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, 3052, Australia; Department of Mathematics and Statistics, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - I P Wicks
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, 3010, Australia; Rheumatology Unit, Royal Melbourne Hospital, Parkville, Victoria, 3050, Australia.
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Miller RE, Tran PB, Sondoqah A, Raghu P, Ishihara S, Miller RJ, Malfait AM. The Role of Peripheral Nociceptive Neurons in the Pathophysiology of Osteoarthritis Pain. Curr Osteoporos Rep 2015; 13:318-26. [PMID: 26233284 PMCID: PMC4596062 DOI: 10.1007/s11914-015-0280-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Knee osteoarthritis is characterized by progressive damage and remodeling of all tissues in the knee joint. Pain is the main symptom associated with knee osteoarthritis. Recent clinical and pre-clinical studies have provided novel insights into the mechanisms that drive the pain associated with joint destruction. In this narrative review, we describe current knowledge regarding the changes in the peripheral and central nervous systems that occur during the progression of osteoarthritis and discuss how therapeutic interventions may provide pain relief.
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Affiliation(s)
- Rachel E. Miller
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, 1611 W. Harrison St, Suite 510, Chicago, IL 60612
- Department of Biochemistry, Rush University Medical Center, 1611 W. Harrison St, Suite 510, Chicago, IL 60612
| | - Phuong B. Tran
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, 1611 W. Harrison St, Suite 510, Chicago, IL 60612
| | - Alia Sondoqah
- Department of Biochemistry, Rush University Medical Center, 1611 W. Harrison St, Suite 510, Chicago, IL 60612
| | - Padmanabhan Raghu
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, 1611 W. Harrison St, Suite 510, Chicago, IL 60612
| | - Shingo Ishihara
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, 1611 W. Harrison St, Suite 510, Chicago, IL 60612
| | - Richard J. Miller
- Department of Pharmacology, Northwestern University, Lurie 8-125, 303 E. Superior St, Chicago, IL 60611
| | - Anne-Marie Malfait
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, 1611 W. Harrison St, Suite 510, Chicago, IL 60612
- Department of Biochemistry, Rush University Medical Center, 1611 W. Harrison St, Suite 510, Chicago, IL 60612
- Corresponding author Anne-Marie Malfait, MD, PhD, Associate Professor of Medicine, , T: 312-563-2925, F: 312-563-2267
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Abstract
Animal models of osteoarthritis are extensively used for investigating disease pathways and for preclinical testing of novel therapies. Their predictive utility, however, has often been questioned, mainly because preclinical efficacy of novel therapeutics is poorly translated in clinical trials. In the current narrative review, we consider the preclinical models that were used to support undertaking clinical trials for disease-modifying osteoarthritis drugs, and compare outcomes between clinical and preclinical studies. We discuss this in light of the 1999 Food and Drug Administration draft guidelines for industry for use in the development of drugs, devices, and biological products intended for the treatment of osteoarthritis, which raised five considerations on the usefulness of osteoarthritis models. We systematically discuss what has been learnt regarding these five points since 1999, with emphasis on replicating distinct risk factors and subtypes of human osteoarthritis, and on comprehensive evaluation of the disease in animals, including pathology of all joint tissues, biomarker analysis, and assessment of pain and joint function. Finally, we discuss lessons learnt and propose some recommendations for how the evidence from preclinical research might be strengthened with a view to improving success in clinical translation.
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Affiliation(s)
- Anne-Marie Malfait
- Department of Medicine, Division of Rheumatology, and Department of Biochemistry, Rush University Medical Center, Chicago, IL, 60612, USA.
| | - Christopher B Little
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Institute of Bone and Joint Research, University of Sydney at Royal North Shore Hospital, St Leonards, NSW, 2065, Australia.
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de Munter W, van der Kraan PM, van den Berg WB, van Lent PLEM. High systemic levels of low-density lipoprotein cholesterol: fuel to the flames in inflammatory osteoarthritis? Rheumatology (Oxford) 2015; 55:16-24. [DOI: 10.1093/rheumatology/kev270] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Indexed: 12/21/2022] Open
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Stock M, Distler A, Distler J, Beyer C, Ruiz-Heiland G, Ipseiz N, Seeling M, Krönke G, Nimmerjahn F, Schett G. Fc-gamma receptors are not involved in cartilage damage during experimental osteoarthritis. Osteoarthritis Cartilage 2015; 23:1221-5. [PMID: 25748082 DOI: 10.1016/j.joca.2015.02.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 01/22/2015] [Accepted: 02/13/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Fc-gamma receptors (FcγRs) have been shown to play a crucial role in cartilage degradation during experimental arthritis. Although most of their effect on cartilage degradation has been attributed to their potential to promote inflammation in the presence of immunoglobulins, activating FcγRs promote cartilage degeneration in antigen-induced arthritis (AIA) independently of the level of inflammation. This prompted us to investigate, whether FcγRs may also play a role in osteoarthritis (OA)-related cartilage degradation. METHODS FcγR expression was measured by RT-PCR and FACS in murine cartilage tissue and chondrocytes. Experimental OA was induced by destabilisation of the medial meniscus (DMM) in WT mice and animals lacking either activating (Fc receptor γ-chain-deficient) or inhibitory (FcγRIIB-deficient) FcγRs. Cartilage damage was investigated histologically 8 weeks post-surgery by assessing proteoglycan loss and structural damage according to OARSI recommendations. Osteophyte size was measured to investigate alterations in bone turnover. RESULTS Expression analyses revealed significant levels for all four types of murine FcγRs in mouse chondrocytes and cartilage tissue from newborn and 8-week-old mice. Surprisingly, yet, ablation of either activating or inhibitory FcγRs did not affect cartilage damage or bone turnover during DMM-induced OA in mice. CONCLUSION While FcγRs appear to have a crucial role in cartilage degradation during inflammatory arthritis our data indicate that FcγRs do not influence cartilage destruction in experimental OA. This indicates that a certain threshold of inflammation is a prerequisite for FcγR-induced cartilage destruction in arthritis.
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Affiliation(s)
- M Stock
- Department of Internal Medicine 3, Erlangen Medical School, University of Erlangen-Nuremberg, Erlangen, Germany.
| | - A Distler
- Department of Internal Medicine 3, Erlangen Medical School, University of Erlangen-Nuremberg, Erlangen, Germany.
| | - J Distler
- Department of Internal Medicine 3, Erlangen Medical School, University of Erlangen-Nuremberg, Erlangen, Germany.
| | - C Beyer
- Department of Internal Medicine 3, Erlangen Medical School, University of Erlangen-Nuremberg, Erlangen, Germany.
| | - G Ruiz-Heiland
- Department of Orthodontics, Justus-Liebig University, Giessen, Germany
| | - N Ipseiz
- Department of Internal Medicine 3, Erlangen Medical School, University of Erlangen-Nuremberg, Erlangen, Germany.
| | - M Seeling
- Department of Biology, Chair of Genetics, University of Erlangen-Nuremberg, Erlangen, Germany.
| | - G Krönke
- Department of Internal Medicine 3, Erlangen Medical School, University of Erlangen-Nuremberg, Erlangen, Germany.
| | - F Nimmerjahn
- Department of Biology, Chair of Genetics, University of Erlangen-Nuremberg, Erlangen, Germany.
| | - G Schett
- Department of Internal Medicine 3, Erlangen Medical School, University of Erlangen-Nuremberg, Erlangen, Germany.
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Bar-Or D, Rael LT, Thomas GW, Brody EN. Inflammatory Pathways in Knee Osteoarthritis: Potential Targets for Treatment. Curr Rheumatol Rev 2015; 11:50-58. [PMID: 26002457 PMCID: PMC4997945 DOI: 10.2174/1573397111666150522094131] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 05/19/2015] [Accepted: 05/20/2015] [Indexed: 02/07/2023]
Abstract
Osteoarthritis (OA) of the knee is a wide-spread, debilitating disease that is prominent in Western countries. It is associated with old age, obesity, and mechanical stress on the knee joint. By examining the recent literature on the effect of the anti-inflammatory prostaglandins 15d-PGJ2 and Δ12-PGJ2, we propose that new therapeutic agents for this disease could facilitate the transition from the COX-2-dependent pro-inflammatory synthesis of the prostaglandin PGE2 (catalyzed by mPGES-1), to the equally COX-2-dependent synthesis of the aforementioned anti-inflammatory prostaglandins. This transition could be instrumental in halting the breakdown of cartilage via matrix metalloproteinases (MMPs) and aggrecanases, as well as promoting the matrix regeneration and synthesis of cartilage by chondrocytes. Another desirable property of new OA therapeutics could involve the recruitment of mesenchymal stem cells to the damaged cartilage and bone, possibly resulting in the generation of chondrocytes, synoviocytes, and, in the case of bone, osteoblasts. Moreover, we propose that research promoting this transition from pro-inflammatory to anti-inflammatory prostaglandins could aid in the identification of new OA therapeutics.
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Affiliation(s)
| | | | | | - Edward N Brody
- Swedish Medical Center/ Trauma Research Department, 501 E. Hampden Ave., Room 4-454, Englewood, CO 80113, USA
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Schelbergen RF, Geven EJ, van den Bosch MHJ, Eriksson H, Leanderson T, Vogl T, Roth J, van de Loo FAJ, Koenders MI, van der Kraan PM, van den Berg WB, Blom AB, van Lent PLEM. Prophylactic treatment with S100A9 inhibitor paquinimod reduces pathology in experimental collagenase-induced osteoarthritis. Ann Rheum Dis 2015; 74:2254-8. [PMID: 25969431 DOI: 10.1136/annrheumdis-2014-206517] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 04/26/2015] [Indexed: 01/26/2023]
Abstract
OBJECTIVES Alarmins S100A8/A9 regulate pathology in experimental osteoarthritis (OA). Paquinimod is an immunomodulatory compound preventing S100A9 binding to TLR-4. We investigated the effect of paquinimod on experimental OA and human OA synovium. MATERIALS AND METHODS Two OA mouse models differing in level of synovial activation were treated prophylactic with paquinimod. Synovial thickening, osteophyte size and cartilage damage were measured histologically, using an arbitrary score, adapted Pritzker OARSI score or imaging software, respectively. Human OA synovia were stimulated with S100A9, with or without paquinimod. RESULTS Paquinimod treatment of collagenase-induced OA (CIOA) resulted in significantly reduced synovial thickening (57%), osteophyte size at the medial femur (66%) and cruciate ligaments (67%) and cartilage damage at the medial tibia (47%) and femur (75%; n=7, untreated n=6). In contrast, paquinimod did not reduce osteophyte size and reduced cartilage damage at one location only in destabilised medial meniscus, an OA model with considerably lower synovial activation compared with CIOA. In human OA synovium, paquinimod blocked proinflammatory (interleukin (IL)-6, IL-8, tumour necrosis factor-α) and catabolic (matrix metalloproteinases 1 and 3) factors induced by S100A9 (n=5). CONCLUSIONS Prophylactic treatment of paquinimod reduces synovial activation, osteophyte formation and cartilage damage in experimental OA with high synovial activation (CIOA) and ameliorates pathological effects of S100A9 in OA synovium ex vivo.
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Affiliation(s)
- R F Schelbergen
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - E J Geven
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M H J van den Bosch
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | | | - T Vogl
- Institute of Immunology, University of Muenster, Muenster, Germany
| | - J Roth
- Institute of Immunology, University of Muenster, Muenster, Germany
| | - F A J van de Loo
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M I Koenders
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - P M van der Kraan
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - W B van den Berg
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A B Blom
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - P L E M van Lent
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
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Faust A, Völler T, Busch F, Schäfers M, Roth J, Hermann S, Vogl T. Development and evaluation of a non-peptidic ligand for the molecular imaging of inflammatory processes using S100A9 (MRP14) as a novel target. Chem Commun (Camb) 2015; 51:15637-40. [DOI: 10.1039/c5cc07019h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We describe the development and first evaluation of a novel S100A9 specific molecular imaging probe (Cy5.5-CES271) for optical imaging of local inflammatory activity in vivo.
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Affiliation(s)
- A. Faust
- European Institute for Molecular Imaging (EIMI)
- University of Münster
- 48149 Münster
- Germany
- Cells-in-Motion Cluster of Excellence (EXC 1003–CiM)
| | - T. Völler
- Institute of Immunology
- University Hospital of Münster
- 48149 Münster
- Germany
| | - F. Busch
- European Institute for Molecular Imaging (EIMI)
- University of Münster
- 48149 Münster
- Germany
| | - M. Schäfers
- European Institute for Molecular Imaging (EIMI)
- University of Münster
- 48149 Münster
- Germany
- Cells-in-Motion Cluster of Excellence (EXC 1003–CiM)
| | - J. Roth
- Cells-in-Motion Cluster of Excellence (EXC 1003–CiM)
- University of Münster
- 48149 Münster
- Germany
- Institute of Immunology
| | - S. Hermann
- European Institute for Molecular Imaging (EIMI)
- University of Münster
- 48149 Münster
- Germany
- Cells-in-Motion Cluster of Excellence (EXC 1003–CiM)
| | - T. Vogl
- Cells-in-Motion Cluster of Excellence (EXC 1003–CiM)
- University of Münster
- 48149 Münster
- Germany
- Institute of Immunology
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Expression of phosphocitrate-targeted genes in osteoarthritis menisci. BIOMED RESEARCH INTERNATIONAL 2014; 2014:210469. [PMID: 25525593 PMCID: PMC4265372 DOI: 10.1155/2014/210469] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 09/11/2014] [Accepted: 09/15/2014] [Indexed: 01/19/2023]
Abstract
Phosphocitrate (PC) inhibited calcium crystal-associated osteoarthritis (OA) in Hartley guinea pigs. However, the molecular mechanisms remain elusive. This study sought to determine PC targeted genes and the expression of select PC targeted genes in OA menisci to test hypothesis that PC exerts its disease modifying activity in part by reversing abnormal expressions of genes involved in OA. We found that PC downregulated the expression of numerous genes classified in immune response, inflammatory response, and angiogenesis, including chemokine (C-C motif) ligand 5, Fc fragment of IgG, low affinity IIIb receptor (FCGR3B), and leukocyte immunoglobulin-like receptor, subfamily B member 3 (LILRB3). In contrast, PC upregulated the expression of many genes classified in skeletal development, including collagen type II alpha1, fibroblast growth factor receptor 3 (FGFR3), and SRY- (sex determining region Y-) box 9 (SOX-9). Immunohistochemical examinations revealed higher levels of FCGR3B and LILRB3 and lower level of SOX-9 in OA menisci. These findings indicate that OA is a disease associated with immune system activation and decreased expression of SOX-9 gene in OA menisci. PC exerts its disease modifying activity on OA, at least in part, by targeting immune system activation and the production of extracellular matrix and selecting chondroprotective proteins.
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Ritter SY, Collins J, Krastins B, Sarracino D, Lopez M, Losina E, Aliprantis AO. Mass spectrometry assays of plasma biomarkers to predict radiographic progression of knee osteoarthritis. Arthritis Res Ther 2014; 16:456. [PMID: 25287745 PMCID: PMC4207325 DOI: 10.1186/s13075-014-0456-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 09/11/2014] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Biomarkers to identify osteoarthritis (OA) patients at risk for disease progression are needed. As part of a proteomic analysis of knee synovial fluid from normal and OA patients, differentially expressed proteins were identified that could represent potential biomarkers for OA. This study aimed to use mass spectrometry assays to identify representative peptides from several proteins in synovial fluid and peripheral blood, and assess their levels as biomarkers of OA progression. METHODS Multiplexed high throughput selected reaction monitoring (SRM) assays were developed to measure tryptic peptides representative of 23 proteins in matched serum and synovial fluid samples from late OA subjects at the time of joint replacement. Subsequently plasma samples from the baseline visit of 173 subjects in an observational OA cohort were tested by SRM for peptides from nine of these proteins: afamin, clusterin, cartilage oligomeric matrix protein, hepatocyte growth factor, kallistatin, insulin-like growth factor binding protein, acid labile subunit, lubricin, lumican, and pigment epithelium-derived factor. Linear regression was used to determine the association between the peptide biomarker level at baseline and change in joint space width (ΔJSW) from baseline to 30 months, adjusting for age and sex. RESULTS In the matched cohort, 17 proteins could be identified in synovial fluid and 16 proteins were detected in serum. For the progression cohort, the average age was 62 and average ΔJSW over 30 months was 0.68 mm. A high correlation between different peptides from individual proteins was observed, indicating our assays correctly measured their target proteins. Peptides representative of clusterin, lumican and lubricin showed statistically significant associations with joint space narrowing after adjustment for age and sex. Partial R2 values showed clusterin FMETVAEK and lubricin LVEVNPK peptide biomarkers explains about 2 to 3% of the variability of ΔJSW, similar to that explained by age. A biomarker score combining normalized data for both lubricin and clusterin peptides increased the model R2 to 0.079. CONCLUSIONS Our results suggest that when combined, levels of peptides representative of clusterin and lubricin in plasma are as predictive of OA progression as age. Replication of these findings in other prospective OA cohorts is planned.
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La Porta C, Bura SA, Negrete R, Maldonado R. Involvement of the endocannabinoid system in osteoarthritis pain. Eur J Neurosci 2014; 39:485-500. [PMID: 24494687 DOI: 10.1111/ejn.12468] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 11/25/2013] [Accepted: 12/02/2013] [Indexed: 12/29/2022]
Abstract
Osteoarthritis is a degenerative joint disease associated with articular cartilage degradation. The major clinical outcome of osteoarthritis is a complex pain state that includes both nociceptive and neuropathic mechanisms. Currently, the therapeutic approaches for osteoarthritis are limited as no drugs are available to control the disease progression and the analgesic treatment has restricted efficacy. Increasing evidence from preclinical studies supports the interest of the endocannabinoid system as an emerging therapeutic target for osteoarthritis pain. Indeed, pharmacological studies have shown the anti-nociceptive effects of cannabinoids in different rodent models of osteoarthritis, and compelling evidence suggests an active participation of the endocannabinoid system in the pathophysiology of this disease. The ubiquitous distribution of cannabinoid receptors, together with the physiological role of the endocannabinoid system in the regulation of pain, inflammation and even joint function further support the therapeutic interest of cannabinoids for osteoarthritis. However, limited clinical evidence has been provided to support this therapeutic use of cannabinoids, despite the promising preclinical data. This review summarizes the promising results that have been recently obtained in support of the therapeutic value of cannabinoids for osteoarthritis management.
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Affiliation(s)
- Carmen La Porta
- Laboratori de Neurofarmacologia, Facultat de Ciències de la Salut i de la Vida, Universitat Pompeu Fabra, C/Dr. Aiguader, 88, Barcelona, 08003, Spain
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Mahler EAM, Zweers MC, van Lent PL, Blom AB, van den Hoogen FH, van den Berg WB, Roth J, Vogl T, Bijlsma JWJ, van den Ende CHM, den Broeder AA. Association between serum levels of the proinflammatory protein S100A8/A9 and clinical and structural characteristics of patients with established knee, hip, and hand osteoarthritis. Scand J Rheumatol 2014; 44:56-60. [PMID: 25179566 DOI: 10.3109/03009742.2014.918176] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To explore the association between S100A8/A9 serum levels with clinical and structural characteristics of patients with established knee, hip, or hand osteoarthritis (OA). METHOD A cross-sectional exploratory study was conducted with 162 OA patients. Measures for pain, stiffness, and function included the Western Ontario and McMaster Universities Osteoarthritis (WOMAC) questionnaire or the Australian Canadian Osteoarthritis Hand (AUSCAN) Index and for structural abnormalities, osteophytes and joint space narrowing grades. The association between S100A8/A9 and clinical or structural characteristics was analysed using linear regression or logistic regression where appropriate. RESULTS The mean age of the OA patients was 56 years, 71% were female, and 61% had a Kellgren and Lawrence (K&L) score ≥ 2. The serum S100A8/A9 level did not differ between knee, hip, and hand OA patients and no association was found between serum S100A8/A9 and clinical characteristics. The serum S100A8/A9 level was negatively associated with the sum score of osteophytes after adjusting for sex and body mass index (BMI) [adjusted β -0.015, 95% confidence interval (CI) -0.030 to 0.001, p = 0.062] and positively associated with erythrocyte sedimentation rate (ESR) > 12 mm/h (adjusted OR 1.002, 95% CI 1.000-1.004 p = 0.049) for each increase in S100A8/A9 of 1 ng/mL. For hand OA patients, a negative association of S100A8/A9 with sum score of joint space narrowing was found (adjusted β -0.007, 95% CI -0.016 to 0.001, p = 0.099). CONCLUSIONS The results from this cross-sectional exploratory study do not support an important role for serum S100A8/A9 levels as a biomarker for clinical and structural characteristics in established knee, hip, and hand OA patients. The inverse association with structural abnormalities and the positive association with ESR may reflect inflammatory synovial processes in patients with OA before structural abnormalities occur.
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Affiliation(s)
- E A M Mahler
- Department of Rheumatology, Sint Maartenskliniek , Nijmegen , The Netherlands
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Schelbergen RFP, de Munter W, van den Bosch MHJ, Lafeber FPJG, Sloetjes A, Vogl T, Roth J, van den Berg WB, van der Kraan PM, Blom AB, van Lent PLEM. Alarmins S100A8/S100A9 aggravate osteophyte formation in experimental osteoarthritis and predict osteophyte progression in early human symptomatic osteoarthritis. Ann Rheum Dis 2014; 75:218-25. [PMID: 25180294 DOI: 10.1136/annrheumdis-2014-205480] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 08/10/2014] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Alarmins S100A8 and S100A9 are major products of activated macrophages regulating cartilage damage and synovial activation during murine and human osteoarthritis (OA). In the current study, we investigated whether S100A8 and S100A9 are involved in osteophyte formation during experimental OA and whether S100A8/A9 predicts osteophyte progression in early human OA. METHODS OA was elicited in S100A9-/- mice in two experimental models that differ in degree of synovial activation. Osteophyte size, S100A8, S100A9 and VDIPEN neoepitope was measured histologically. Chondrogenesis was induced in murine mesenchymal stem cells in the presence of S100A8. Levels of S100A8/A9 were determined in plasma of early symptomatic OA participants of the Cohort Hip and Cohort Knee (CHECK) cohort study and osteophytes measured after 2 and 5 years. RESULTS Osteophyte size was drastically reduced in S100A9-/- mice in ligaments and at medial femur and tibia on days 21 and 42 of collagenase-induced OA, in which synovial activation is high. In contrast, osteophyte size was not reduced in S100A9-/- mice during destabilised medial meniscus OA, in which synovial activation is scant. S100A8 increased expression and activation of matrix metalloproteinases during micromass chondrogenesis, thereby possibly increasing cartilage matrix remodelling allowing for larger osteophytes. Interestingly, early symptomatic OA participants of the CHECK study with osteophyte progression after 2 and 5 years had elevated S100A8/A9 plasma levels at baseline, while C-reactive protein, erythrocyte sedimentation rate and cartilage oligomeric matrix protein were not elevated at baseline. CONCLUSIONS S100A8/A9 aggravate osteophyte formation in experimental OA with high synovial activation and may be used to predict osteophyte progression in early symptomatic human OA.
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Affiliation(s)
- R F P Schelbergen
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - W de Munter
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M H J van den Bosch
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - F P J G Lafeber
- Departments of Rheumatology and Clinical Immunology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - A Sloetjes
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - T Vogl
- Institute of Immunology, University of Muenster, Muenster, Germany
| | - J Roth
- Institute of Immunology, University of Muenster, Muenster, Germany
| | - W B van den Berg
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - P M van der Kraan
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A B Blom
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - P L E M van Lent
- Department of Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
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Vogl T, Eisenblätter M, Völler T, Zenker S, Hermann S, van Lent P, Faust A, Geyer C, Petersen B, Roebrock K, Schäfers M, Bremer C, Roth J. Alarmin S100A8/S100A9 as a biomarker for molecular imaging of local inflammatory activity. Nat Commun 2014; 5:4593. [PMID: 25098555 PMCID: PMC4143994 DOI: 10.1038/ncomms5593] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 07/03/2014] [Indexed: 12/19/2022] Open
Abstract
Inflammation has a key role in the pathogenesis of various human diseases. The early detection, localization and monitoring of inflammation are crucial for tailoring individual therapies. However, reliable biomarkers to detect local inflammatory activities and to predict disease outcome are still missing. Alarmins, which are locally released during cellular stress, are early amplifiers of inflammation. Here, using optical molecular imaging, we demonstrate that the alarmin S100A8/S100A9 serves as a sensitive local and systemic marker for the detection of even sub-clinical disease activity in inflammatory and immunological processes like irritative and allergic contact dermatitis. In a model of collagen-induced arthritis, we use S100A8/S100A9 imaging to predict the development of disease activity. Furthermore, S100A8/S100A9 can act as a very early and sensitive biomarker in experimental leishmaniasis for phagocyte activation linked to an effective Th1-response. In conclusion, the alarmin S100A8/S100A9 is a valuable and sensitive molecular target for novel imaging approaches to monitor clinically relevant inflammatory disorders on a molecular level.
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Affiliation(s)
- Thomas Vogl
- Institute of Immunology, University of Münster, 48149 Münster, Germany
- Interdisciplinary Centre for Clinical Research, University of Münster, 48149 Münster, Germany
- These authors contributed equally to this work
| | - Michel Eisenblätter
- Division of Imaging Sciences and Biomedical Engineering, King’s College London, London SE1 7EH, UK
- Department of Clinical Radiology, University of Münster, 48149 Münster, Germany
- These authors contributed equally to this work
| | - Tom Völler
- Institute of Immunology, University of Münster, 48149 Münster, Germany
| | - Stefanie Zenker
- Institute of Immunology, University of Münster, 48149 Münster, Germany
| | - Sven Hermann
- Interdisciplinary Centre for Clinical Research, University of Münster, 48149 Münster, Germany
- European Institute for Molecular Imaging, University of Münster, 48149 Münster, Germany
| | - Peter van Lent
- Department of Rheumatology, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands
| | - Andreas Faust
- European Institute for Molecular Imaging, University of Münster, 48149 Münster, Germany
| | - Christiane Geyer
- Interdisciplinary Centre for Clinical Research, University of Münster, 48149 Münster, Germany
- Department of Clinical Radiology, University of Münster, 48149 Münster, Germany
| | - Beatrix Petersen
- Institute of Immunology, University of Münster, 48149 Münster, Germany
| | - Kirsten Roebrock
- Institute of Immunology, University of Münster, 48149 Münster, Germany
- Interdisciplinary Centre for Clinical Research, University of Münster, 48149 Münster, Germany
| | - Michael Schäfers
- European Institute for Molecular Imaging, University of Münster, 48149 Münster, Germany
- Cluster of Excellence EXC 1003 ‘Cells in Motion - CiM’, University of Münster, 48149 Münster, Germany
| | - Christoph Bremer
- Interdisciplinary Centre for Clinical Research, University of Münster, 48149 Münster, Germany
- Department of Radiology, St Franziskus Hospital Münster, 48145 Münster, Germany
| | - Johannes Roth
- Institute of Immunology, University of Münster, 48149 Münster, Germany
- Interdisciplinary Centre for Clinical Research, University of Münster, 48149 Münster, Germany
- Cluster of Excellence EXC 1003 ‘Cells in Motion - CiM’, University of Münster, 48149 Münster, Germany
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Schelbergen RF, van Dalen S, ter Huurne M, Roth J, Vogl T, Noël D, Jorgensen C, van den Berg WB, van de Loo FA, Blom AB, van Lent PLEM. Treatment efficacy of adipose-derived stem cells in experimental osteoarthritis is driven by high synovial activation and reflected by S100A8/A9 serum levels. Osteoarthritis Cartilage 2014; 22:1158-66. [PMID: 24928317 DOI: 10.1016/j.joca.2014.05.022] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 05/23/2014] [Accepted: 05/28/2014] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Synovitis is evident in a substantial subpopulation of patients with osteoarthritis (OA) and is associated with development of pathophysiology. Recently we have shown that adipose-derived stem cells (ASC) inhibit joint destruction in collagenase-induced experimental OA (CIOA). In the current study we explored the role of synovitis and alarmins S100A8/A9 in the immunomodulatory capacity of ASCs in experimental OA. METHOD CIOA, characterized by synovitis, and surgical DMM (destabilization of medial meniscus) OA were treated locally with ASCs. Synovial activation, cartilage damage and osteophyte size were measured on histological sections. Cytokines in synovial washouts and serum were determined using Luminex or enzyme-linked immunosorbent assay (S100A8/A9), mRNA levels with reverse-transcriptase (RT)-qPCR. RESULTS Local administration of ASCs at various time-points (days 7 or 14) after DMM induction had no effect on OA pathology. At day 7 of CIOA, already 6 h after ASC injection mRNA expression of pro-inflammatory mediators S100A8/A9, interleukin-1beta (IL-1β) and KC was down-regulated in the synovium. IL-1β protein, although low, was down-regulated by ASC-treatment of CIOA. S100A8/A9 protein levels were very high at 6 and 48 h and were decreased by ASC-treatment. The protective action of ASC treatment in CIOA was only found when high synovial inflammation was present at the time of deposition which was reflected by high serum S100A8/A9 levels. Finally, successful treatment resulted in significantly lower levels of serum S100A8/A9. CONCLUSION Our study indicates that synovial activation rapidly drives anti-inflammatory and protective effects of intra-articularly deposited ASCs in experimental OA which is reflected by decreased S100A8/A9 levels.
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Affiliation(s)
- R F Schelbergen
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - S van Dalen
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M ter Huurne
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - J Roth
- Institute of Immunology, University of Munster, Germany
| | - T Vogl
- Institute of Immunology, University of Munster, Germany
| | - D Noël
- Inserm U844, Hôpital Saint-Eloi, Montpellier, France
| | - C Jorgensen
- Inserm U844, Hôpital Saint-Eloi, Montpellier, France
| | - W B van den Berg
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - F A van de Loo
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A B Blom
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - P L E M van Lent
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands.
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Lambert C, Dubuc JE, Montell E, Vergés J, Munaut C, Noël A, Henrotin Y. Gene expression pattern of cells from inflamed and normal areas of osteoarthritis synovial membrane. Arthritis Rheumatol 2014; 66:960-8. [PMID: 24757147 PMCID: PMC4033569 DOI: 10.1002/art.38315] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Accepted: 12/10/2013] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To compare the gene expression patterns of synovial cells from inflamed or normal/reactive areas of synovial membrane obtained from the same patient with osteoarthritis (OA). METHODS At the time of total knee replacement, synovial tissues were obtained from 12 patients with knee OA. The inflammation status of the synovial membrane was characterized according to macroscopic criteria and classified as normal/reactive or inflamed. Biopsy samples were cultured separately for 7 days. Microarray gene expression profiling was performed on normal/reactive and inflamed areas. Western blot and immunohistochemistry were used to confirm the identified genes that were differentially expressed. RESULTS We identified 896 genes that were differentially expressed between normal/reactive and inflamed areas. The key pathways were related to inflammation, cartilage metabolism, Wnt signaling, and angiogenesis. In the inflammation network, the genes TREM1 and S100A9 were strongly up-regulated. The genes MMP3, MMP9, CTSH (cathepsin H), and CTSS (cathepsin S) were significantly up-regulated in the cartilage catabolism pathway, while the most up-regulated anabolism enzyme gene was HAS1. In the Wnt signaling pathway, the genes for Wnt-5a and low-density lipoprotein receptor-related protein 5 were up-regulated, while the gene FZD2 and the gene for Dkk-3 were down-regulated. Finally, STC1, which codes for a protein involved in angiogenesis, was identified as the most up-regulated gene in inflamed compared with normal/reactive areas. CONCLUSION This study is the first to identify different expression patterns between 2 areas of the synovial membrane from the same patient. These differences concern several key pathways involved in OA pathogenesis. This analysis also provides information regarding new genes and proteins as potential targets of treatment.
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Affiliation(s)
- Cécile Lambert
- University of Liège and Centre Hospitalier Universitaire (CHU) Sart-Tilman, Liège, Belgium
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Nasi S, Ea HK, Chobaz V, van Lent P, Lioté F, So A, Busso N. Dispensable role of myeloid differentiation primary response gene 88 (MyD88) and MyD88-dependent toll-like receptors (TLRs) in a murine model of osteoarthritis. Joint Bone Spine 2014; 81:320-4. [PMID: 24703622 DOI: 10.1016/j.jbspin.2014.01.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 01/25/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVES The aim of our study was to evaluate the role of cell-membrane expressed TLRs and the signaling molecule MyD88 in a murine model of OA induced by knee menisectomy (surgical partial removal of the medial meniscus [MNX]). METHODS OA was induced in 8-10weeks old C57Bl/6 wild-type (WT) female (n=7) mice and in knockout (KO) TLR-1 (n=7), -2 (n=8), -4 (n=9) -6 (n=5), MyD88 (n=8) mice by medial menisectomy, using the sham-operated contralateral knee as a control. Cartilage destruction and synovial inflammation were evaluated by knee joint histology using the OARSI scoring method. Apoptotic chondrocytes and cartilage metabolism (collagen II synthesis and MMP-mediated aggrecan degradation) were analyzed using immunohistochemistry. RESULTS Operated knees exhibited OA features at 8weeks post-surgery compared to sham-operated ones. In menisectomized TLR-1, -2, -4, and -6 deficient mice, cartilage lesions, synovial inflammation and cartilage metabolism were similar to that in operated WT mice. Accordingly, using the same approach, we found no significant protection in MyD88-deficient mice in terms of OA progression as compared to WT littermates. CONCLUSIONS Deficiency of TLRs or their signalling molecule MyD88 did not impact on the severity of experimental OA. Our results demonstrate that MyD88-dependent TLRs are not involved in this murine OA model. Moreover, the dispensable role of MyD88, which is also an adaptor for IL-1 receptor signaling, suggests that IL-1 is not a key mediator in the development of OA. This latter hypothesis is strengthened by the lack of efficiency of IL-1β antagonist in the treatment of OA.
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Affiliation(s)
- Sonia Nasi
- DAL, Service of Rheumatology, Laboratory of Rheumatology, University of Lausanne, CHUV, Nestlé 05-5029, 1011 Lausanne, Switzerland
| | - Hang-Korng Ea
- INSERM, UMR-S 606, Hospital Lariboisière, 75010 Paris, France; University Paris Diderot (UFR de Médecine), Sorbonne Paris Cité, 75205 Paris, France
| | - Véronique Chobaz
- DAL, Service of Rheumatology, Laboratory of Rheumatology, University of Lausanne, CHUV, Nestlé 05-5029, 1011 Lausanne, Switzerland
| | | | - Frédéric Lioté
- INSERM, UMR-S 606, Hospital Lariboisière, 75010 Paris, France; University Paris Diderot (UFR de Médecine), Sorbonne Paris Cité, 75205 Paris, France
| | - Alexander So
- DAL, Service of Rheumatology, Laboratory of Rheumatology, University of Lausanne, CHUV, Nestlé 05-5029, 1011 Lausanne, Switzerland
| | - Nathalie Busso
- DAL, Service of Rheumatology, Laboratory of Rheumatology, University of Lausanne, CHUV, Nestlé 05-5029, 1011 Lausanne, Switzerland.
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Andréasson K, Saxne T, Scheja A, Bartosik I, Mandl T, Hesselstrand R. Faecal levels of calprotectin in systemic sclerosis are stable over time and are higher compared to primary Sjögren's syndrome and rheumatoid arthritis. Arthritis Res Ther 2014; 16:R46. [PMID: 24499541 PMCID: PMC3978565 DOI: 10.1186/ar4475] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 01/28/2014] [Indexed: 02/06/2023] Open
Abstract
Introduction Faecal calprotectin (FC) has been proposed to be a biomarker of gastrointestinal (GI) disease in systemic sclerosis (SSc). The purpose of this study was to extend cross-sectional observations and prospectively assess the variability of FC over time in SSc patients. We also aimed to examine FC in relation to immunosuppressive therapy. Finally we wanted to analyse FC in other rheumatic diseases to evaluate the specificity of FC for SSc GI disease. Methods FC was measured in consecutive patients with SSc, primary Sjögren’s syndrome (pSS), rheumatoid arthritis (RA) and in healthy hospital workers. The intraindividual variability of FC in SSc was assessed with intra class correlation (ICC) and κ statistics. Associations between FC and objective markers of GI disease and immunosuppressive medication were investigated. Results FC was associated with micronutrient deficiency and GI pathology as assessed by cineradiography confirming our previous results. FC showed only a limited intra-individual variation in SSc, ICC = 0.69 (95% confidence interval, CI: 0.57-0.78) and κ = 0.64 (95% CI: 0.56-0.73). Generalised immunosuppression did not have any significant impact on FC. FC was significantly higher in SSc patients compared to patients with pSS or RA as well as compared to healthy subjects. Conclusions FC is a promising non-invasive biomarker for GI disease in SSc. In view of stable levels over time, FC could be a useful marker when novel, more specific drugs targeting the GI tract in SSc will be introduced.
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Carrión M, Juarranz Y, Seoane IV, Martínez C, González-Álvaro I, Pablos JL, Gutiérrez-Cañas I, Gomariz RP. VIP modulates IL-22R1 expression and prevents the contribution of rheumatoid synovial fibroblasts to IL-22-mediated joint destruction. J Mol Neurosci 2014; 52:10-7. [PMID: 24254222 DOI: 10.1007/s12031-013-0177-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 11/06/2013] [Indexed: 02/07/2023]
Abstract
Rheumatoid arthritis (RA) and osteoarthritis are two rheumatic diseases whose progression is associated with a chronic synovitis. Fibroblast-like synoviocytes (FLS) have been shown to play a pivotal role in initiating and perpetuating inflammatory and destructive processes in the rheumatoid joint. Recently, the stimulating role of IL-22 has been reported on RA-FLS contribution to joint destruction by means of the increase of proliferation and matrix-metalloproteinase-1 (MMP-1) and alarmin S100A8/A9 production. Besides, mediators potentially present in inflamed joints have been shown to increase the expression of IL-22/IL-22R1 axis, amplifying the capacity of FLS to respond to IL-22 signalling. Since targeting cytokines that govern FLS activation would allow controlling their contribution to synovial inflammation, the present study was designed to analyze the potential immunoregulatory capacity of vasoactive intestinal peptide (VIP) to counterbalance IL-22 effects on FLS behavior. Our results showed that VIP is able to downregulate the augmented expression of IL-22 specific receptor in FLS subjected to a proinflammatory milieu. Moreover, this study revealed the ability of VIP to inhibit the IL-22 stimulatory effects on proliferation as well as on expression of both MMP-1 and alarmins in RA-FLS. The present findings reinforce the potential of this neuroimmunopeptide as a therapeutic agent in rheumatic diseases.
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Affiliation(s)
- Mar Carrión
- Departamento de Biología Celular, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
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Wang Q, Pan X, Wong H, Wagner C, Lahey L, Robinson W, Sokolove J. Oral and topical boswellic acid attenuates mouse osteoarthritis. Osteoarthritis Cartilage 2014; 22:128-32. [PMID: 24185109 PMCID: PMC3992997 DOI: 10.1016/j.joca.2013.10.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 09/16/2013] [Accepted: 10/22/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Boswellic acid is a plant-derived molecule with putative anti-inflammatory effects. This study was performed to determine whether oral or topical administration of boswellic acid can attenuate joint damage in a mouse model of osteoarthritis (OA). METHODS Levels of boswellic acid were measured in the blood and synovium of mice treated with oral or topical boswellic acid. OA was generated by surgical destabilization of the medial meniscus (DMM). Therapy with oral or topical boswellic acid was initiated one day after surgery and continued for 12 weeks, when knees were harvested and scored histologically for degree of cartilage loss, osteophyte formation, and synovitis. Microdissected OA synovium was stimulated with IL-1β or lipopolysaccharide (LPS) in the presence or absence of boswellic acid and cytokine production by quantitative polymerase chain reaction (PCR) or multiplex enzyme linked immunoabsorbant assay (ELISA). RESULTS Topical treatment resulted in synovial concentrations of boswellic acid 2-6-fold higher than that measured in plasma. Cartilage loss was significantly reduced in mice treated with oral or topical boswellic acid compared with vehicle control (P < 0.01 for both oral and topical therapies). Likewise, treatment with either oral boswellic acid or boswellic acid ointment reduced of synovitis (P = 0.006 and 0.025, respectively) and osteophyte formation (P = 0.009 and 0.030, respectively). In vitro, boswellic acid was able to inhibit IL-1β and TLR4 mediated induction of several inflammatory mediators from OA synovial explant tissue. CONCLUSIONS Significant synovial concentration and therapeutic efficacy can be achieved with topical boswellic acid treatment. These findings suggest that boswellic acid has potential as a disease-modifying agent in OA.
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Affiliation(s)
- Q. Wang
- GRECC, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - X. Pan
- Department of Orthopedic Surgery, Qilu Hospital, Shandong University, China
| | - H.H. Wong
- GRECC, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - C.A. Wagner
- GRECC, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - L.J. Lahey
- GRECC, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - W.H. Robinson
- GRECC, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA 94305, USA,Address correspondence and reprint requests to: W.H. Robinson, GRECC, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - J. Sokolove
- GRECC, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA 94305, USA,Address correspondence and reprint requests to: J. Sokolove, GRECC, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
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Carrión M, Juarranz Y, Martínez C, González-Álvaro I, Pablos JL, Gutiérrez-Cañas I, Gomariz RP. IL-22/IL-22R1 axis and S100A8/A9 alarmins in human osteoarthritic and rheumatoid arthritis synovial fibroblasts. Rheumatology (Oxford) 2013; 52:2177-86. [PMID: 24056519 DOI: 10.1093/rheumatology/ket315] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVES Fibroblast-like synoviocytes (FLSs) are crucial players in the pathogenesis of synovitis in rheumatic diseases. Targeting FLS activation represents an approach to the development of therapeutic strategies. Our aim was to investigate whether the microenvironment of inflamed joints could modulate the expression of IL-22 and IL-22R1 on OA and RA FLSs. We also examined the effect of IL-22 on FLS activation as well as on their IL-17-related responses. METHODS IL-22 and IL-22R1 expression was studied by RT-PCR and immunoblotting. Proliferation was measured by an ELISA kit. IL-17 receptors, p19IL-23 and alarmins were analysed by RT-PCR. IL-17 receptor expression was evaluated by flow cytometry. MMP1 and IL-23 were measured by ELISA. S100A8/A9 expression was detected by immunofluorescence and ELISA. Signal transducer and activator of transcription 3 (STAT3) phosphorylation was quantified using a cell-based ELISA kit. RESULTS IL-22 and IL-22R1 were expressed constitutively in FLSs. We demonstrated that S100A8 and S100A9 were synthesized in FLSs. We reported that inflammatory mediators increased the expression of the IL-22/IL-22R1 axis, amplifying FLS activation. IL-22 enhanced FLS proliferation and up-regulated MMP1 and S100A8/A9 production. STAT3 phosphorylation was induced after IL-22 treatment and the stimulatory effect of IL-22 on S100A8/A9 was reduced after the activities of Janus kinase 2 (JAK2) and JAK3 were blocked. We showed an inhibitory action of IL-22 on IL-23 and IL-17RC expression in RA FLSs and on IL-17RA in OA FLSs. CONCLUSION Therapies based on the pharmacological disruption signalling of IL-22 could be beneficial for the treatment of rheumatic diseases. The restricted expression of IL-22R1 to non-lymphoid cells could lead to a reduction of side effects mediated by immune responses.
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Affiliation(s)
- Mar Carrión
- Departamento de Biología Celular, Facultad de Biología, Universidad Complutense, Antonio Novais, no 2, Ciudad Universitaria, 28040 Madrid, Spain.
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Retser E, Schied T, Skryabin BV, Vogl T, Kanczler JM, Hamann N, Niehoff A, Hermann S, Eisenblätter M, Wachsmuth L, Pap T, van Lent PLEM, Loser K, Roth J, Zaucke F, Ludwig S, Wixler V. Doxycycline-induced expression of transgenic human tumor necrosis factor α in adult mice results in psoriasis-like arthritis. ACTA ACUST UNITED AC 2013; 65:2290-300. [PMID: 23740547 PMCID: PMC3798087 DOI: 10.1002/art.38026] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Accepted: 05/14/2013] [Indexed: 12/29/2022]
Abstract
Objective To generate doxycycline-inducible human tumor necrosis factor α (TNFα)–transgenic mice to overcome a major disadvantage of existing transgenic mice with constitutive expression of TNFα, which is the limitation in crossing them with various knockout or transgenic mice. Methods A transgenic mouse line that expresses the human TNFα cytokine exclusively after doxycycline administration was generated and analyzed for the onset of diseases. Results Doxycycline-inducible human TNFα–transgenic mice developed an inflammatory arthritis– and psoriasis-like phenotype, with fore and hind paws being prominently affected. The formation of “sausage digits” with characteristic involvement of the distal interphalangeal joints and nail malformation was observed. Synovial hyperplasia, enthesitis, cartilage and bone alterations, formation of pannus tissue, and inflammation of the skin epidermis and nail matrix appeared as early as 1 week after the treatment of mice with doxycycline and became aggravated over time. The abrogation of human TNFα expression by the removal of doxycycline 6 weeks after beginning stimulation resulted in fast resolution of the most advanced macroscopic and histologic disorders, and 3–6 weeks later, only minimal signs of disease were visible. Conclusion Upon doxycycline administration, the doxycycline-inducible human TNFα–transgenic mouse displays the major features of inflammatory arthritis. It represents a unique animal model for studying the molecular mechanisms of arthritis, especially the early phases of disease genesis and tissue remodeling steps upon abrogation of TNFα expression. Furthermore, unlimited crossing of doxycycline-inducible human TNFα–transgenic mice with various knockout or transgenic mice opens new possibilities for unraveling the role of various signaling molecules acting in concert with TNFα.
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Affiliation(s)
- Eugen Retser
- ZMBE and University Hospital Muenster, Muenster, Germany
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de Munter W, Blom AB, Helsen MM, Walgreen B, van der Kraan PM, Joosten LAB, van den Berg WB, van Lent PLEM. Cholesterol accumulation caused by low density lipoprotein receptor deficiency or a cholesterol-rich diet results in ectopic bone formation during experimental osteoarthritis. Arthritis Res Ther 2013; 15:R178. [PMID: 24286458 PMCID: PMC3978425 DOI: 10.1186/ar4367] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 10/10/2013] [Indexed: 12/15/2022] Open
Abstract
Introduction Osteoarthritis (OA) is associated with the metabolic syndrome, however the underlying mechanisms remain unclear. We investigated whether low density lipoprotein (LDL) accumulation leads to increased LDL uptake by synovial macrophages and affects synovial activation, cartilage destruction and enthesophyte/osteophyte formation during experimental OA in mice. Methods LDL receptor deficient (LDLr−/−) mice and wild type (WT) controls received a cholesterol-rich or control diet for 120 days. Experimental OA was induced by intra-articular injection of collagenase twelve weeks after start of the diet. OA knee joints and synovial wash-outs were analyzed for OA-related changes. Murine bone marrow derived macrophages were stimulated with oxidized LDL (oxLDL), whereupon growth factor presence and gene expression were analyzed. Results A cholesterol-rich diet increased apolipoprotein B (ApoB) accumulation in synovial macrophages. Although increased LDL levels did not enhance thickening of the synovial lining, S100A8 expression within macrophages was increased in WT mice after receiving a cholesterol-rich diet, reflecting an elevated activation status. Both a cholesterol-rich diet and LDLr deficiency had no effect on cartilage damage; in contrast, ectopic bone formation was increased within joint ligaments (fold increase 6.7 and 6.1, respectively). Moreover, increased osteophyte size was found at the margins of the tibial plateau (4.4 fold increase after a cholesterol-rich diet and 5.3 fold increase in LDLr−/− mice). Synovial wash-outs of LDLr−/− mice and supernatants of macrophages stimulated with oxLDL led to increased transforming growth factor-beta (TGF-β) signaling compared to controls. Conclusions LDL accumulation within synovial lining cells leads to increased activation of synovium and osteophyte formation in experimental OA. OxLDL uptake by macrophages activates growth factors of the TGF-superfamily.
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Loeser RF. Osteoarthritis year in review 2013: biology. Osteoarthritis Cartilage 2013; 21:1436-42. [PMID: 23774472 PMCID: PMC3779513 DOI: 10.1016/j.joca.2013.05.020] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 05/20/2013] [Accepted: 05/27/2013] [Indexed: 02/02/2023]
Abstract
The purpose of this review was to present highlights from the published literature on the topic of the biology of osteoarthritis (OA). A PubMed search was conducted in order to locate original research manuscripts published since the last OARSI meeting in 2012. From review of the published literature, common themes emerged as active areas of research over the past year including studies in the areas of epigenetics, Wnt signaling, the role of inflammatory pathways in OA, lubricin, fibroblast growth factor signaling, and studies on OA biology in bone. Key findings in these areas were summarized and implications for future therapies were discussed.
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Affiliation(s)
- R F Loeser
- Department of Internal Medicine, Section of Molecular Medicine and The Wake Forest Arthritis and Musculoskeletal Diseases Research Center, Wake Forest School of Medicine, Winston-Salem, NC, USA.
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139
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Lafeber FPJG, van Spil WE. Osteoarthritis year 2013 in review: biomarkers; reflecting before moving forward, one step at a time. Osteoarthritis Cartilage 2013; 21:1452-64. [PMID: 23954702 DOI: 10.1016/j.joca.2013.08.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 07/25/2013] [Accepted: 08/03/2013] [Indexed: 02/02/2023]
Abstract
In 2010, in Osteoarthritis and Cartilage, we published a comprehensive systematic review applying the consensus BIPED criteria (Burden of Disease, Investigative, Prognostic, Efficacy of Intervention and Diagnostic) criteria on serum and urinary biochemical markers for knee and hip osteoarthritis (OA) using publications that were available at that time. It appeared that none of the biochemical markers at that time were sufficiently discriminating to allow diagnosis and prognosis of OA in individual or limited numbers of patients, nor performed so consistently that they could function as primary outcome parameters in clinical trials. Also at present, almost 3 years later, this ultimate goal has not been reached (yet). Frankly, it might be questioned whether we are making the most adequate steps ahead and maybe we have to take a step back to reconsider our approaches. Some reflections are made and discussed: A critical review of molecular metabolism in OA and validation of currently investigated marker molecules in this may be vital and may lead to new and better markers. Creating cohorts in which synovial fluid (SF) is obtained in a systematic way, together with serum and urine, may also bring the field a further step ahead. Thirdly, better understanding of different phenotypes (subtypes) of OA may facilitate identification and validation of biochemical markers. Finally, the systems biology approach as discussed in the last years OA in review on biomarkers, although very complex, might provide steps forward. Looking ahead, we are optimistic but realistic in our expectations, we believe that the field can be brought forward by critically and cautiously reconsidering our approaches, and making changes forward, one step at a time.
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Affiliation(s)
- F P J G Lafeber
- Rheumatology & Clin. Immunol., University Medical Centre Utrecht, The Netherlands.
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140
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Liu-Bryan R. Synovium and the innate inflammatory network in osteoarthritis progression. Curr Rheumatol Rep 2013; 15:323. [PMID: 23516014 DOI: 10.1007/s11926-013-0323-5] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
This review focuses on the recent advancements in the understanding of innate immunity in the pathogenesis of osteoarthritis, particularly with attention to the roles of damage-associated molecular patterns (DAMPs), pattern recognition receptors (PPRs), and complement in synovitis development and cartilage degradation. Endogenous molecular products derived from cellular stress and extracellular matrix disruption can function as DAMPs to induce inflammatory responses and pro-catabolic events in vitro and promote synovitis and cartilage degradation in vivo via PRRs. Some of the DAMPs and PRRs display various capacities in driving synovitis and/or cartilage degradation in different models of animal studies. New findings reveal that the inflammatory complement cascade plays a key in the pathogenesis of OA. Crosstalk between joint tissues such as synovium and cartilage communicated at the cellular level within the innate immune inflammatory network is implicated to play an important role in OA progression. Further studies on how the innate immune inflammatory network impacts the OA disease process at different stages of progression will lead to the development of new therapeutic strategies.
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Affiliation(s)
- Ru Liu-Bryan
- Veterans Affairs Medical Center and University of California San Diego, 3350 La Jolla Village Drive, 111K, San Diego, CA 92161, USA.
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141
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Malfait AM, Little CB, McDougall JJ. A commentary on modelling osteoarthritis pain in small animals. Osteoarthritis Cartilage 2013; 21:1316-26. [PMID: 23973146 PMCID: PMC3903124 DOI: 10.1016/j.joca.2013.06.003] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 05/23/2013] [Accepted: 06/05/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To describe the currently used animal models for the study of osteoarthritis (OA) pain, with an emphasis on small animals (predominantly mice and rats). OUTLINE Narrative review summarizing the opportunities and limitations of the most commonly used small animal models for the study of pain and pain pathways associated with OA, and discussing currently used methods for pain assessment. Involvement of neural degeneration in OA is briefly discussed. A list of considerations when studying pain-related behaviours and pathways in animal models of OA is proposed. CONCLUSIONS Animal models offer great potential to unravel the complex pathophysiology of OA pain, its molecular and temporal regulation. They constitute a critical pathway for developing and testing disease-specific symptom-modifying therapeutic interventions. However, a number of issues remain to be resolved in order to standardize pre-clinical OA pain research and to optimize translation to clinical trials and patient therapies.
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Affiliation(s)
- Anne-Marie Malfait
- Department of Medicine, Section of Rheumatology, and Department of Biochemistry, Rush University Medical Center, Chicago IL, To whom correspondence should be addressed
| | - Christopher B. Little
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Institute of Bone and Joint Research, University of Sydney at Royal North Shore Hospital, St Leonards, NSW 2065, Australia
| | - Jason J. McDougall
- Departments of Pharmacology and Anaesthesia, Pain Management & Perioperative Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
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142
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Simard JC, Cesaro A, Chapeton-Montes J, Tardif M, Antoine F, Girard D, Tessier PA. S100A8 and S100A9 induce cytokine expression and regulate the NLRP3 inflammasome via ROS-dependent activation of NF-κB(1.). PLoS One 2013; 8:e72138. [PMID: 23977231 PMCID: PMC3747084 DOI: 10.1371/journal.pone.0072138] [Citation(s) in RCA: 190] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 07/06/2013] [Indexed: 01/17/2023] Open
Abstract
S100A8 and S100A9 are cytoplasmic proteins expressed by phagocytes. High concentrations of these proteins have been correlated with various inflammatory conditions, including autoimmune diseases such as rheumatoid arthritis and Crohn's disease, as well as autoinflammatory diseases. In the present study, we examined the effects of S100A8 and S100A9 on the secretion of cytokines and chemokines from PBMCs. S100A8 and S100A9 induced the secretion of cytokines such as IL-6, IL-8, and IL-1β. This secretion was associated with the activation and translocation of the transcription factor NF-κB. Inhibition studies using antisense RNA and the pharmacological agent BAY-117082 confirmed the involvement of NF-κB in IL-6, IL-8, and IL-1β secretion. S100A8- and S100A9-mediated activation of NF-κB, the NLR family, pyrin domain-containing 3 (NLRP3) protein, and pro-IL-1β expression was dependent on the generation of reactive oxygen species. This effect was synergistically enhanced by ATP, a known inflammasome activator. These results suggest that S100A8 and S100A9 enhance the inflammatory response by inducing cytokine secretion of PBMCs.
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Affiliation(s)
- Jean-Christophe Simard
- Laboratoire de Recherche en Inflammation des Granulocytes, Université du Québec Institut National de la Recherche Scientifique, Institut Armand-Frappier, Laval, Québec, Canada
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143
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Pepper RJ, Hamour S, Chavele KM, Todd SK, Rasmussen N, Flint S, Lyons PA, Smith KGC, Pusey CD, Cook HT, Salama AD. Leukocyte and serum S100A8/S100A9 expression reflects disease activity in ANCA-associated vasculitis and glomerulonephritis. Kidney Int 2013; 83:1150-8. [PMID: 23423260 PMCID: PMC3675710 DOI: 10.1038/ki.2013.2] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Revised: 11/12/2012] [Accepted: 11/16/2012] [Indexed: 12/12/2022]
Abstract
Antineutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV) commonly results in glomerulonephritis, in which neutrophils and monocytes have important roles. The heterodimer calprotectin (S100A8/S100A9, mrp8/14) is a Toll-like receptor-4 ligand found in neutrophils and monocytes and is elevated in inflammatory conditions. By immunohistochemistry of renal biopsies, patients with focal or crescentic glomerular lesions were found to have the highest expression of calprotectin and those with sclerotic the least. Serum levels of calprotectin as measured by ELISA were elevated in patients with active AAV and the levels decreased but did not normalize during remission, suggesting subclinical inflammation. Calprotectin levels in patients with limited systemic disease increased following treatment withdrawal and were significantly elevated in patients who relapsed compared with those who did not. As assessed by flow cytometry, patients with AAV had higher monocyte and neutrophil cell surface calprotectin expression than healthy controls, but this was not associated with augmented mRNA expression in CD14(+) monocytes or CD16(+) neutrophils. Thus, serum calprotectin is a potential disease biomarker in patients with AAV, and may have a role in disease pathogenesis.
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Affiliation(s)
- Ruth J Pepper
- UCL Centre for Nephrology, Royal Free Hospital, London, UK.
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144
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Little CB, Hunter DJ. Post-traumatic osteoarthritis: from mouse models to clinical trials. Nat Rev Rheumatol 2013; 9:485-97. [PMID: 23689231 DOI: 10.1038/nrrheum.2013.72] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Osteoarthritis (OA), the most common of all arthropathies, is a leading cause of disability and has a large (and growing) worldwide socioeconomic cost. Despite its burgeoning importance, translation of disease-modifying OA therapies from the laboratory into clinical practice has slowed. Differences between the OA models studied preclinically and the disease evaluated in human clinical trials contribute to this failure. Most animal models of OA induce disease through surgical or mechanical disruption of joint biomechanics in young individuals rather than the spontaneous development of age-associated disease. This instability-induced joint disease in animals best models the arthritis that develops in humans after an injurious event, known as post-traumatic OA (PTOA). Studies in genetically modified mice suggest that PTOA has a distinct molecular pathophysiology compared with that of spontaneous OA, which might explain the poor translation from preclinical to clinical OA therapeutic trials. This Review summarizes the latest data on potential molecular targets for PTOA prevention and modification derived from studies in genetically modified mice, and describes their validation in preclinical therapeutic trials. This article focuses on how these findings might best be translated to humans, and identifies the potential challenges to successful implementation of clinical trials of disease-modifying drugs for PTOA.
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Affiliation(s)
- Christopher B Little
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Institute of Bone and Joint Research, University of Sydney at Royal North Shore Hospital, St Leonards, NSW 2065, Australia. christopher.little@ sydney.edu.au
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145
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Sokolove J, Lepus CM. Role of inflammation in the pathogenesis of osteoarthritis: latest findings and interpretations. Ther Adv Musculoskelet Dis 2013; 5:77-94. [PMID: 23641259 DOI: 10.1177/1759720x12467868] [Citation(s) in RCA: 683] [Impact Index Per Article: 62.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Osteoarthritis (OA) has traditionally been classified as a noninflammatory arthritis; however, the dichotomy between inflammatory and degenerative arthritis is becoming less clear with the recognition of a plethora of ongoing immune processes within the OA joint and synovium. Synovitis is defined as inflammation of the synovial membrane and is characteristic of classical inflammatory arthritidies. Increasingly recognized is the presence of synovitis in a significant proportion of patients with primary OA, and based on this observation, further studies have gone on to implicate joint inflammation and synovitis in the pathogenesis of OA. However, clinical OA is not one disease but a final common pathway secondary to many predisposing factors, most notably age, joint trauma, altered biomechanics, and obesity. How such biochemical and mechanical processes contribute to the progressive joint failure characteristic of OA is tightly linked to the interplay of joint damage, the immune response to perceived damage, and the subsequent state of chronic inflammation resulting in propagation and progression toward the phenotype recognized as clinical OA. This review will discuss a wide range of evolving data leading to our current hypotheses regarding the role of immune activation and inflammation in OA onset and progression. Although OA can affect any joint, most commonly the knee, hip, spine, and hands, this review will focus primarily on OA of the knee as this is the joint most well characterized by epidemiologic, imaging, and translational studies investigating the association of inflammation with OA.
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Affiliation(s)
- Jeremy Sokolove
- Department of Medicine/ Immunology, VA Palo Alto Health Care System, 3801 Miranda Ave, Mail Stop 154R, Palo Alto, CA 94034 Stanford University, Palo Alto, CA, USA
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146
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MRP8 promotes Th17 differentiation via upregulation of IL-6 production by fibroblast-like synoviocytes in rheumatoid arthritis. Exp Mol Med 2013; 45:e20. [PMID: 23619188 PMCID: PMC3641402 DOI: 10.1038/emm.2013.39] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Myeloid-related protein (MRP)8/MRP14 is an endogenous Toll-like receptor 4 (TLR4) ligand and is abundant in synovial fluid (SF) of rheumatoid arthritis (RA) patients. Belonging to damage-associated molecular patterns, it amplifies proinflammatory mediators and facilitates a wide range of inflammatory and autoimmune diseases. Interleukin (IL)-17-producing T-helper (Th)17 cells have a crucial role in RA pathogenesis, and IL-6 is the key factor promoting Th17 differentiation. We investigated whether the level of MRP8/MRP14 is positively associated with IL-6 and IL-17 levels in RA SF and found that MRP8/MRP14 level had a significant correlation with IL-6 and IL-17 levels in RA SF. We also observed that MRP8-induced IL-17 production by peripheral blood mononuclear cells but MRP14 did not. Upon stimulation with MRP8, IL-6 production was enhanced by RA fibroblast-like synoviocytes (FLS) and was further elevated by coculturing RA FLS with activated CD4+ T cells. Moreover, we demonstrated that MRP8-activated IL-6 production by RA FLS promoted differentiation of Th17 cells using the coculture system consisting of CD4+ T cells and RA FLS. In addition, IL-6 blockade attenuated Th17 polarization of CD4+ T cells in the cocultures. Inhibitor studies revealed that MRP8 increased IL-6 production in RA FLS via TLR4/phosphoinositide 3-kinase/nuclear factor-κB and mitogen-activated protein kinase signaling pathways. Our results show that MRP8 has a crucial role in stimulating IL-6 expression by RA FLS, and subsequently promotes Th17 differentiation in RA, suggesting that neutralizing MRP8 level in RA synovium may be an effective therapeutic strategy in RA treatment.
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147
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Lewis JS, Furman BD, Zeitler E, Huebner JL, Kraus VB, Guilak F, Olson SA. Genetic and cellular evidence of decreased inflammation associated with reduced incidence of posttraumatic arthritis in MRL/MpJ mice. ACTA ACUST UNITED AC 2013. [PMID: 23203659 DOI: 10.1002/art.37796] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVE To examine the relationship between inflammation and posttraumatic arthritis (PTA) in a murine intraarticular fracture model. METHODS Male C57BL/6 and MRL/MpJ "superhealer" mice received tibial plateau fractures using a previously established method. Mice were killed on day 0 (within 4 hours of fracture) and days 1, 3, 5, 7, 28, and 56 after fracture. Synovial tissue samples, obtained prior to fracture and on days 0, 1, 3, 5, and 7 after fracture, were examined by reverse transcription-polymerase chain reaction for gene expression of proinflammatory cytokines and chemokines. Synovial fluid and serum samples were collected to measure cytokine concentrations, using enzyme-linked immunosorbent assay. Whole joints were examined histologically for the extent of synovitis and cartilage degradation, and joint tissue samples from all time points were analyzed immunohistochemically to evaluate the distribution of interleukin-1 (IL-1). RESULTS Compared to C57BL/6 mice, MRL/MpJ mice had less severe intraarticular and systemic inflammation following joint injury, as evidenced by lower gene expression of tumor necrosis factor α and IL-1β in the synovial tissue and lower protein levels of IL-1α and IL-1β in the synovial fluid, serum, and joint tissues. Furthermore, after joint injury, MRL/MpJ mice had lower gene expression of macrophage inflammatory proteins and macrophage-derived chemokine (CCL22) in the synovial tissue, and also had reduced acute and late-stage infiltration of synovial macrophages. CONCLUSION C57BL/6 mice exhibited higher levels of inflammation than MRL/MpJ mice, indicating that MRL/MpJ mice are protected from PTA in this model. These data thus suggest an association between joint tissue inflammation and the development and progression of PTA in mice.
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Affiliation(s)
- John S Lewis
- Duke University Medical Center, Durham, North Carolina 27710, USA
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148
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Ea HK, Chobaz V, Nguyen C, Nasi S, van Lent P, Daudon M, Dessombz A, Bazin D, McCarthy G, Jolles-Haeberli B, Ives A, Van Linthoudt D, So A, Lioté F, Busso N. Pathogenic role of basic calcium phosphate crystals in destructive arthropathies. PLoS One 2013; 8:e57352. [PMID: 23468973 PMCID: PMC3585350 DOI: 10.1371/journal.pone.0057352] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Accepted: 01/21/2013] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND basic calcium phosphate (BCP) crystals are commonly found in osteoarthritis (OA) and are associated with cartilage destruction. BCP crystals induce in vitro catabolic responses with the production of metalloproteases and inflammatory cytokines such as interleukin-1 (IL-1). In vivo, IL-1 production induced by BCP crystals is both dependant and independent of NLRP3 inflammasome. We aimed to clarify 1/ the role of BCP crystals in cartilage destruction and 2/ the role of IL-1 and NLRP3 inflammasome in cartilage degradation related to BCP crystals. METHODOLOGY PRINCIPAL FINDINGS synovial membranes isolated from OA knees were analysed by alizarin Red and FTIR. Pyrogen free BCP crystals were injected into right knees of WT, NLRP3 -/-, ASC -/-, IL-1α -/- and IL-1β-/- mice and PBS was injected into left knees. To assess the role of IL-1, WT mice were treated by intra-peritoneal injections of anakinra, the IL-1Ra recombinant protein, or PBS. Articular destruction was studied at d4, d17 and d30 assessing synovial inflammation, proteoglycan loss and chondrocyte apoptosis. BCP crystals were frequently found in OA synovial membranes including low grade OA. BCP crystals injected into murine knee joints provoked synovial inflammation characterized by synovial macrophage infiltration that persisted at day 30, cartilage degradation as evidenced by loss of proteoglycan staining by Safranin-O and concomitant expression of VDIPEN epitopes, and increased chondrocyte apoptosis. BCP crystal-induced synovitis was totally independent of IL-1α and IL-1β signalling and no alterations of inflammation were observed in mice deficient for components of the NLRP3-inflammasome, IL-1α or IL-1β. Similarly, treatment with anakinra did not prevent BCP crystal effects. In vitro, BCP crystals elicited enhanced transcription of matrix degrading and pro-inflammatory genes in macrophages. CONCLUSIONS SIGNIFICANCE intra-articular BCP crystals can elicit synovial inflammation and cartilage degradation suggesting that BCP crystals have a direct pathogenic role in OA. The effects are independent of IL-1 and NLRP3 inflammasome.
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Affiliation(s)
- Hang-Korng Ea
- INSERM, UMR-S 606, Hospital Lariboisière,Paris, France
- University Paris Diderot (UFR de Médecine), Sorbonne Paris Cité, Paris, France
| | - Véronique Chobaz
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | | | - Sonia Nasi
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Peter van Lent
- Department of Rheumatology, Rheumatology Research and Advanced Therapeutics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Michel Daudon
- Service des Explorations Fonctionnelles, Hôpital Tenon, AP-HP, Paris, France
| | - Arnaud Dessombz
- Laboratoire de Physique des Solides, Université Paris Sud, Orsay, France
| | - Dominique Bazin
- Laboratoire de Physique des Solides, Université Paris Sud, Orsay, France
| | | | - Brigitte Jolles-Haeberli
- Service de chirurgie orthopédique et traumatologique de l'appareil moteur, Department of Musculoskeletal Medicine, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Annette Ives
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Daniel Van Linthoudt
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Alexander So
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Frédéric Lioté
- INSERM, UMR-S 606, Hospital Lariboisière,Paris, France
- University Paris Diderot (UFR de Médecine), Sorbonne Paris Cité, Paris, France
| | - Nathalie Busso
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
- * E-mail:
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149
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Weng LH, Ko JY, Wang CJ, Sun YC, Wang FS. Dkk-1 promotes angiogenic responses and cartilage matrix proteinase secretion in synovial fibroblasts from osteoarthritic joints. ACTA ACUST UNITED AC 2013; 64:3267-77. [PMID: 22736200 DOI: 10.1002/art.34602] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Synovial hypervascularity is a prominent pathologic feature in osteoarthritic (OA) joints. Wnt inhibitor Dkk-1 contributes to joint remodeling. We undertook this study to investigate whether Dkk-1 regulates cartilage destruction activities in OA synovial fibroblasts. METHODS Synovial tissues were harvested from knees of patients with OA and from injured knees of non-OA patients who underwent arthroscopy. Expression of Dkk-1, angiogenic factors (stromal cell-derived factor 1 and colony-stimulating factor 1), and cartilage proteinases (ADAMTS-5 and matrix metalloproteinase 3 [MMP-3]) as well as vascularity in synovium and synovial fluid were quantified using enzyme-linked immunosorbent assay, reverse transcription-polymerase chain reaction, and histomorphometry. Synovial fibroblasts were treated with interleukin-1β (IL-1β), anti-Dkk-1 antibody, and RNA interference to characterize their angiogenic activity. Rats with OA knees were administered Dkk-1 antisense oligonucleotide to verify synovial angiogenesis and cartilage integrity. RESULTS OA synovium exhibited increased vascularity and expression of angiogenic factors and proteinases in association with up-regulated Dkk-1 levels. Neutralizing Dkk-1 reduced the inhibitory effects of OA synovial fluid on aggrecan expression in chondrocyte cultures. IL-1β induction of Dkk-1 increased expression of hypoxia-inducible factor 1α (HIF-1α), angiogenic factors, ADAMTS-5, and MMP-3 in synovial fibroblasts and promoted angiogenesis in vascular endothelial cells. Knockdown of HIF-1α decreased Dkk-1 enhancement of angiogenic factor expression. Stabilization of glycogen synthase kinase 3β phosphorylated at Ser(9) , β-catenin, T cell factor 4, and ERK signaling attenuated Dkk-1 up-regulation of angiogenic factor and proteinase expression in synovial fibroblasts. In vivo, Dkk-1 interference reduced the expression of angiogenic factors and proteinases and ameliorated synovial vascularity and cartilage deterioration in knees of rats with OA. CONCLUSION Dkk-1 promoted angiogenic and cartilage degradation activities in synovial fibroblasts, which accelerated synovial angiogenesis and cartilage destruction. Dkk-1 blockade has therapeutic potential for reducing OA-induced synovitis and joint deterioration.
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Affiliation(s)
- Lin-Hsiu Weng
- Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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150
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ter Huurne M, Schelbergen R, Blattes R, Blom A, de Munter W, Grevers LC, Jeanson J, Noël D, Casteilla L, Jorgensen C, van den Berg W, van Lent PLEM. Antiinflammatory and chondroprotective effects of intraarticular injection of adipose-derived stem cells in experimental osteoarthritis. ACTA ACUST UNITED AC 2013; 64:3604-13. [PMID: 22961401 DOI: 10.1002/art.34626] [Citation(s) in RCA: 254] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE In experimental collagenase-induced osteoarthritis (OA) in the mouse, synovial lining macrophages are crucial in mediating joint destruction. It was recently shown that adipose-derived stem cells (ASCs) express immunosuppressive characteristics. This study was undertaken to explore the effect of intraarticular injection of ASCs on synovial lining thickness and its relation to joint pathology in experimental mouse OA. METHODS ASCs were isolated from fat surrounding the inguinal lymph nodes and cultured for 2 weeks. Experimental OA was induced by injection of collagenase into the knee joints of C57BL/6 mice. OA phenotypes were measured within 8 weeks after induction. Histologic analysis was performed, and synovial thickening, enthesophyte formation, and cartilage destruction were measured in the knee joint. RESULTS ASCs were injected into the knee joints of mice 7 days after the induction of collagenase-induced OA. On day 1, green fluorescent protein-labeled ASCs were attached to the lining layer in close contact with macrophages. Thickening of the synovial lining, formation of enthesophytes associated with medial collateral ligaments, and formation of enthesophytes associated with cruciate ligaments were significantly inhibited on day 42 after ASC treatment, by 31%, 89%, and 44%, respectively. Destruction of cartilage was inhibited on day 14 (65%) and day 42 (35%). In contrast to early treatment, injection of ASCs on day 14 after OA induction showed no significant effect on synovial activation or joint pathology on day 42. CONCLUSION These findings indicate that a single injection of ASCs into the knee joints of mice with early-stage collagenase-induced OA inhibits synovial thickening, formation of enthesophytes associated with ligaments, and cartilage destruction.
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