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Xu S, Jiemy WF, Brouwer E, Burgess JK, Heeringa P, van der Geest KSM, Alba-Rovira R, Corbera-Bellalta M, Boots AH, Cid MC, Sandovici M. Current evidence on the role of fibroblasts in large-vessel vasculitides: From pathogenesis to therapeutics. Autoimmun Rev 2024; 23:103574. [PMID: 38782083 DOI: 10.1016/j.autrev.2024.103574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/29/2024] [Accepted: 05/20/2024] [Indexed: 05/25/2024]
Abstract
Large-vessel vasculitides (LVV) comprise a group of chronic inflammatory diseases of the aorta and its major branches. The most common forms of LVV are giant cell arteritis (GCA) and Takayasu arteritis (TAK). Both GCA and TAK are characterized by granulomatous inflammation of the vessel wall accompanied by a maladaptive immune and vascular response that promotes vascular damage and remodeling. The inflammatory process in LVV starts in the adventitia where fibroblasts constitute the dominant cell population. Fibroblasts are traditionally recognized for synthesizing and renewing the extracellular matrix thereby being major players in maintenance of normal tissue architecture and in tissue repair. More recently, fibroblasts have emerged as a highly plastic cell population exerting various functions, including the regulation of local immune processes and organization of immune cells at the site of inflammation through production of cytokines, chemokines and growth factors as well as cell-cell interaction. In this review, we summarize and discuss the current knowledge on fibroblasts in LVV. Furthermore, we identify key questions that need to be addressed to fully understand the role of fibroblasts in the pathogenesis of LVV.
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Affiliation(s)
- Shuang Xu
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - William F Jiemy
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - Elisabeth Brouwer
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - Janette K Burgess
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, the Netherlands
| | - Peter Heeringa
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, the Netherlands
| | - Kornelis S M van der Geest
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - Roser Alba-Rovira
- Vasculitis Research Group, Department of Autoimmune Diseases, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Marc Corbera-Bellalta
- Vasculitis Research Group, Department of Autoimmune Diseases, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Annemieke H Boots
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - Maria C Cid
- Vasculitis Research Group, Department of Autoimmune Diseases, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Maria Sandovici
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands.
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Guo C, He L, Hu N, Zhao X, Gong L, Wang C, Peng C, Li Y. Aconiti Lateralis Radix Praeparata lipid-soluble alkaloids alleviates IL-1β-induced inflammation of human fibroblast-like synoviocytes in rheumatoid arthritis by inhibiting NF-κB and MAPKs signaling pathways and inducing apoptosis. Cytokine 2022; 151:155809. [DOI: 10.1016/j.cyto.2022.155809] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/06/2021] [Accepted: 01/14/2022] [Indexed: 01/03/2023]
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3
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van der Kraan PM. Inhibition of transforming growth factor-β in osteoarthritis. Discrepancy with reduced TGFβ signaling in normal joints. OSTEOARTHRITIS AND CARTILAGE OPEN 2022; 4:100238. [DOI: 10.1016/j.ocarto.2022.100238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 10/19/2022] Open
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Zhao W, Liu Y, Liu K, Tu F, Zhang C, Wang H. Synovial fibroblasts regulate the cytotoxicity and osteoclastogenic activity of synovial natural killer cells through the RANKL‐RANK axis in osteoarthritis. Scand J Immunol 2021. [DOI: 10.1111/sji.13069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wenbin Zhao
- Department of Orthopedic Surgery Wuhan No. 1 Hospital Qiaokou District, Wuhan China
| | - Yuanfeng Liu
- Department of Orthopedic Surgery Wuhan No. 1 Hospital Qiaokou District, Wuhan China
| | - Kang Liu
- Department of Orthopedic Surgery Wuhan No. 1 Hospital Qiaokou District, Wuhan China
| | - Feng Tu
- Department of Orthopedic Surgery Wuhan No. 1 Hospital Qiaokou District, Wuhan China
| | - Chen Zhang
- Department of Orthopedic Surgery Wuhan No. 1 Hospital Qiaokou District, Wuhan China
| | - Hao Wang
- Department of Orthopedic Surgery Wuhan No. 1 Hospital Qiaokou District, Wuhan China
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Sunderic K, Li C, Ahmed AHR, Dawkins D, Azar T, Cardoso L, Wang S. Tuning Thermal Dosage to Facilitate Mesenchymal Stem Cell Osteogenesis in Pro-Inflammatory Environment. J Biomech Eng 2021; 143:1084896. [PMID: 32601701 DOI: 10.1115/1.4047660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Indexed: 01/21/2023]
Abstract
Mesenchymal stem cells (MSCs) are multipotent cells that can replicate and differentiate to different lineages, potentiating their use as integral components in regenerated mesenchymal tissues. Our previous work and other studies have indicated that mild heat shock enhances osteogenesis. However, the influence of pro-inflammatory cytokines on osteogenic differentiation during mildly elevated temperature conditions remains to be fully explored. In this study, human MSCs (hMSCs) were cultured with tumor necrosis factor-alpha (TNF-α), an important mediator of the acute phase response, and interleukin-6 (IL-6) which plays a role in damaging chronic inflammation, then heat shocked at 39 °C in varying frequencies-1 h per week (low), 1 h every other day (mild), and 1 h intervals three times per day every other day (high). DNA data showed that periodic mild heating inhibited suppression of cell growth caused by cytokines and induced maximal proliferation of hMSCs while high heating had the opposite effect. Quantitative osteogenesis assays show significantly higher levels of alkaline phosphatase (ALP) activity and calcium precipitation in osteogenic cultures following mild heating compared to low heating or nonheated controls. These results demonstrate that periodic mild hyperthermia may be used to facilitate bone regeneration using hMSCs, and therefore may influence the design of heat-based therapies in vivo.
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Affiliation(s)
- Kristifor Sunderic
- Department of Biomedical Engineering, City University of New York-City College, 160 Convent Avenue, New York, NY 10031
| | - Chenghai Li
- Department of Biomedical Engineering, City University of New York-City College, 160 Convent Avenue, New York, NY 10031
| | - A H Rezwanuddin Ahmed
- Department of Biomedical Engineering, City University of New York-City College, 160 Convent Avenue, New York, NY 10031
| | - Dionne Dawkins
- Department of Biomedical Engineering, City University of New York-City College, 160 Convent Avenue, New York, NY 10031
| | - Tala Azar
- Department of Biomedical Engineering, City University of New York-City College, 160 Convent Avenue, New York, NY 10031
| | - Luis Cardoso
- Department of Biomedical Engineering, City University of New York-City College, 160 Convent Avenue, New York, NY 10031
| | - Sihong Wang
- Department of Biomedical Engineering, City University of New York-City College, 160 Convent Avenue, New York, NY 10031
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Zhu H, Hu Y, Wang C, Zhang X, He D. CircGCN1L1 promotes synoviocyte proliferation and chondrocyte apoptosis by targeting miR-330-3p and TNF-α in TMJ osteoarthritis. Cell Death Dis 2020; 11:284. [PMID: 32332704 PMCID: PMC7181816 DOI: 10.1038/s41419-020-2447-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 03/29/2020] [Accepted: 03/30/2020] [Indexed: 12/17/2022]
Abstract
Altered expression of circular RNAs (circRNAs) has been identified in various human diseases. In this study, we investigated whether circRNAs function as competing endogenous RNAs to regulate the pathological process of temporomandibular joint osteoarthritis (TMJOA). High-throughput sequencing of mRNA (RNA seq) was performed to detect the expression of circRNAs in TMJOA and control synovial tissues isolated from humans. The differentially upregulated circGCN1L1 (hsa_circ_0000448) in synoviocyte was validated in vitro and in vivo. Here we demonstrate the interactions between circGCN1L1 and both miR-330-3p and tumor necrosis factor-α (TNF-α) through bioinformatics predictions, luciferase report assays, and fluorescence in situ hybridization. mRNA expression profiles of TNF-α-stimulated synoviocyte showed that circGCN1L1 and p65 expressions were upregulated by TNF-α. Moreover, miR-330-3p was negatively correlated with TNF-α secretion. Further, we found that miR-330-3p directly targeted TNF and restrained the production of matrix-degrading enzymes (MMP3, MMP13, and ADAMTS4). Mechanistic studies unveiled that circGCN1L1 in TMJOA synovial tissues and cells may be associated with condylar chondrocyte apoptosis and synoviocyte hyperplasia. Moreover, intra-articular injection of shcircGCN1L1 alleviated TMJOA progression in rat models. Altogether, we elucidated the important roles of a novel circRNA, namely, circGCN1L1, which induced inflammation in TMJ synoviocytes and decreased anabolism of the extracellular matrix (ECM) through miR-330-3p and TNF-α gene. This circRNA may represent a potentially effective therapeutic strategy against TMJOA progression at an early stage.
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Affiliation(s)
- Huimin Zhu
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yihui Hu
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuandong Wang
- Department of Orthopedic Surgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai, China
| | - Xiaoling Zhang
- Department of Orthopedic Surgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai, China.
| | - Dongmei He
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Choi BR, Kang SJ, Kim JL, Lee YJ, Ku SK. Effects of Pomegranate Concentrate Powder: Eucommiae Cortex: Achyranthis Radix 5:4:1 (w/w) Mixed Formula on Monosodium Iodoacetate-Induced Osteoarthritis in Rats. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20907725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We examined the antiosteoarthritis effect of a mixture of powdered pomegranate concentrate, eucommiae cortex, and achyranthis radix (5:4:1 w/w) (PEA-Mix). After the injection of monosodium iodoacetate (MIA), PEA-Mixs were orally administered. To assess pain-related behaviors, a von Frey filament test and open field test were performed. We also examined the knee thickness, maximum knee extension angle, bone mineral density (BMD), and compressive strength of the knee joint and performed a histopathologic analysis. The number of COX-2, tumor necrosis factor (TNF)-α, poly (ADP-ribose) polymerase (PARP), and 5-bromo-2′-deoxyuridine immunoreactive cells, the prostaglandin E2 (PGE2) and 5-lipoxygenase (LPO) levels, matrix metalloproteinase (MMP) activity, and mRNA levels of chondrogenesis-related genes were analyzed. PEA-Mix significantly inhibited the MIA-induced decrease in the paw-withdrawal threshold and total distance moved, and the MIA-induced increases in the maximum knee extension angle and knee thickness. Also, the MIA-induced loss of the knee joint articular surface region and decrease in the BMD were significantly suppressed by PEA-Mix. The MIA-induced increases in the 5-LPO, PGE2, MMP-2, MMP-9, COX-2, and TNF-α mRNA levels were reduced by PEA-Mix. PEA-Mix increased the MIA-mediated reduction in the SOX-9 and aggrecan mRNA levels. The number of PARP-positive cells was smaller in PEA-Mix-administered rats than in MIA-administered rats, while the number of 5-bromo-2′-deoxyuridine-positive cells was larger. Therefore, PEA-Mix relieved the MIA-induced pain-related behaviors, chondrocyte proliferation, and anti-inflammatory activity.
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Affiliation(s)
- Beom-Rak Choi
- Department of Foodscience and Biotechnology, Sungkyunkwan University, Suwon-si, Republic of Korea
| | - Su-Jin Kang
- Department of Histology and Anatomy, College of Korean Medicine, Daegu Haany University, Gyeongsan-si, Republic of Korea
- The Medical Research Center for Herbal Convergence on Liver Disease, Daegu Haany University, Gyeongsan-si, Republic of Korea
| | - Jong-Lae Kim
- HLscience Co., Ltd, Uiwang-si, Republic of Korea
| | - Young-Joon Lee
- Department of Preventive Medicine, College of Korean Medicine, Daegu Haany University, Gyeongsan-si, Republic of Korea
| | - Sea-Kwang Ku
- Department of Histology and Anatomy, College of Korean Medicine, Daegu Haany University, Gyeongsan-si, Republic of Korea
- The Medical Research Center for Herbal Convergence on Liver Disease, Daegu Haany University, Gyeongsan-si, Republic of Korea
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Ajeeshkumar KK, Vishnu KV, Navaneethan R, Raj K, Remyakumari KR, Swaminathan TR, Suseela M, Asha KK, Sreekanth GP. Proteoglycans isolated from the bramble shark cartilage show potential anti-osteoarthritic properties. Inflammopharmacology 2019; 27:175-187. [PMID: 30600472 DOI: 10.1007/s10787-018-00554-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/14/2018] [Indexed: 01/09/2023]
Abstract
Osteoarthritis (OA) causes articular cartilage destruction, initiating pain and inflammation in the joints, resulting in joint disability. Medications are available to manage these symptoms; however, their effects on the disease progression are limited. Loss of proteoglycans (PGs) was reported to contribute articular cartilage destruction in OA. Therapeutics approaches were previously studied in the animal models of OA. In the present study, we investigated the oral efficacy of four dosages of PGs (25 mg/kg, 50 mg/kg, 100 mg/kg and 200 mg/kg), isolated from the bramble shark cartilage, in an animal model of OA. Indomethacin was used as a bioequivalent formulation. Primarily, the mass spectrum analysis of the purified PGs obtained from bramble shark cartilage revealed the presence of two unique peptides including AGWLSDGSVR and LDGNPINLSK, that showed sequence similarity with aggrecan core-protein and epiphycan, respectively. The levels of C-reactive protein and uric acid in the OA rats were reduced when treated with PGs. Histopathology analysis displayed less cartilage erosion and neovascularization in OA rats treated with PGs. The X-ray imaging presented higher bone density with 200 mg/kg dosage of PG treatment in OA rats. The expressions of the inflammatory modulators including TNF-α, IL-1β, MMP13, NOS2, IL-10 and COX-2 were found to be moderated with PG treatment. In addition, PG treatment maintained the activities of antioxidant enzymes, including SOD and catalase in the joint tissues with a higher GSH content, in a dose-dependent manner. Taken together, our preliminary findings report the anti-osteoarthritic properties of PGs and recommend to evaluate its efficacy and safety in randomized trials.
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Affiliation(s)
| | - Kalladath Venugopal Vishnu
- Biochemistry and Nutrition Division, ICAR-Central Institute of Fisheries Technology, Kochi, Kerala, India
| | - Raju Navaneethan
- Biochemistry and Nutrition Division, ICAR-Central Institute of Fisheries Technology, Kochi, Kerala, India
| | - Kumar Raj
- Peninsular and Marine Fish Genetic Resources Centre, ICAR-National Bureau of Fish Genetic Resources, CMFRI Campus, Kochi, Kerala, India
| | | | - Thangaraj Raja Swaminathan
- Peninsular and Marine Fish Genetic Resources Centre, ICAR-National Bureau of Fish Genetic Resources, CMFRI Campus, Kochi, Kerala, India
| | - Mathew Suseela
- Biochemistry and Nutrition Division, ICAR-Central Institute of Fisheries Technology, Kochi, Kerala, India
| | - Kurukkan Kunnath Asha
- Biochemistry and Nutrition Division, ICAR-Central Institute of Fisheries Technology, Kochi, Kerala, India.
| | - Gopinathan Pillai Sreekanth
- Siriraj Center of Research Excellence for Molecular Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
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Ogura T, Suzuki M, Sakuma Y, Yamauchi K, Orita S, Miyagi M, Ishikawa T, Kamoda H, Oikawa Y, Kanisawa I, Takahashi K, Sakai H, Nagamine T, Fukuda H, Takahashi K, Ohtori S, Tsuchiya A. Differences in levels of inflammatory mediators in meniscal and synovial tissue of patients with meniscal lesions. J Exp Orthop 2016; 3:7. [PMID: 26915007 PMCID: PMC4740471 DOI: 10.1186/s40634-016-0041-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 01/25/2016] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Meniscal injuries are a risk factor for osteoarthritis (OA). While a mechanical pathway between meniscal injury and OA has been described, the biological effects of inflammation on this pathway have yet to be clarified. The aim of our study was to compare levels of specific inflammatory mediators, tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and nerve growth factor (NGF), in injured and uninjured meniscal tissue and related knee joint synovium. METHODS Tissue samples were obtained from 19 patients, 31.1 ± 13.6 years old, who underwent arthroscopic partial meniscectomy. For analysis, tissue samples were categorized into the following groups: injured meniscal site (IM), non-injured meniscal site (NIM), synovium 'nearest' the lesion (NS), and synovium from the opposite knee compartment, 'farthest' synovium (FS). Levels of inflammatory mediators were determined using enzyme-linked immunosorbent assay and between-group differences (IM and NIM; NS and FS) were evaluated using the Wilcoxon signed-rank test. The association between pre-operative pain score and the level of each inflammatory mediator was evaluated using Spearman's correlation. RESULTS Higher levels of TNF-α and IL-6 were identified in the IM tissue, compared to NIM (p <0.05). IL-6 levels were also higher in the NS compared to the FS (p <0.05). There was no correlation between pre-operative pain score and level of each inflammatory mediator. CONCLUSIONS Our outcomes confirm a local increase in inflammatory mediator levels, in both meniscal and synovial tissue, which could contribute to development of OA. Management of these biological effects of meniscal injury might be warranted.
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Affiliation(s)
- Takahiro Ogura
- Funabashi Orthopaedic Hospital Sports Medicine Center, Funabashi, Chiba, Japan.
| | - Miyako Suzuki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Yoshihiro Sakuma
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Kazuyo Yamauchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Masayuki Miyagi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Tetsuhiro Ishikawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Hiroto Kamoda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Yasuhiro Oikawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Izumi Kanisawa
- Funabashi Orthopaedic Hospital Sports Medicine Center, Funabashi, Chiba, Japan.
| | - Kenji Takahashi
- Funabashi Orthopaedic Hospital Sports Medicine Center, Funabashi, Chiba, Japan.
| | - Hiroki Sakai
- Funabashi Orthopaedic Hospital Sports Medicine Center, Funabashi, Chiba, Japan.
| | - Tomonori Nagamine
- Funabashi Orthopaedic Hospital Sports Medicine Center, Funabashi, Chiba, Japan.
| | - Hideaki Fukuda
- Funabashi Orthopaedic Hospital Sports Medicine Center, Funabashi, Chiba, Japan.
| | - Kazuhisa Takahashi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Akihiro Tsuchiya
- Funabashi Orthopaedic Hospital Sports Medicine Center, Funabashi, Chiba, Japan.
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P2X3 and P2X2/3 Receptors Play a Crucial Role in Articular Hyperalgesia Development Through Inflammatory Mechanisms in the Knee Joint Experimental Synovitis. Mol Neurobiol 2016; 54:6174-6186. [PMID: 27709491 DOI: 10.1007/s12035-016-0146-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 09/19/2016] [Indexed: 01/25/2023]
Abstract
Osteoarthritis (OA) is a degenerative and progressive disease characterized by cartilage breakdown and by synovial membrane inflammation, which results in disability, joint swelling, and pain. The purinergic P2X3 and P2X2/3 receptors contribute to development of inflammatory hyperalgesia, participate in arthritis processes in the knee joint, and are expressed in chondrocytes and nociceptive afferent fibers innervating the knee joint. In this study, we hypothesized that P2X3 and P2X2/3 receptors activation by endogenous ATP (adenosine 5'-triphosphate) induces articular hyperalgesia in the knee joint of male and female rats through an indirect sensitization of primary afferent nociceptors dependent on the previous release of pro-inflammatory cytokines and/or on neutrophil migration. We found that the blockade of articular P2X3 and P2X2/3 receptors significantly attenuated carrageenan-induced hyperalgesia in the knee joint of male and estrus female rats in a similar manner. The carrageenan-induced knee joint inflammation increased the expression of P2X3 receptors in chondrocytes of articular cartilage. Further, the blockade of articular P2X3 and P2X2/3 receptors significantly reduced the increased concentration of TNF-α, IL-6, and CINC-1 and the neutrophil migration induced by carrageenan. These findings indicate that P2X3 and P2X2/3 receptors activation by endogenous ATP is essential to hyperalgesia development in the knee joint through an indirect sensitization of primary afferent nociceptors dependent on the previous release of pro-inflammatory cytokines and/or on neutrophil migration.
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Zhao J, Ouyang Q, Hu Z, Huang Q, Wu J, Wang R, Yang M. A protocol for the culture and isolation of murine synovial fibroblasts. Biomed Rep 2016; 5:171-175. [PMID: 27446536 PMCID: PMC4950553 DOI: 10.3892/br.2016.708] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 05/24/2016] [Indexed: 01/18/2023] Open
Abstract
The culture of synovial fibroblasts (SFs) is one of the most effective tools for investigating the pathology and physiology of synovial tissues and should prove useful for identifying the importance of SFs in disease as well as for the development of novel therapeutic approaches for several chronic joint diseases, such as rheumatoid arthritis. However, thus far, a detailed protocol for the primary culture and isolation of murine SFs has not been established. Therefore, the present study describes an easy and convenient method for isolating and culturing SFs from C57BL/6 mice. This protocol can be divided into 4 stages: Isolation of synovial tissues, isolation of SFs, seeding of SFs for growth in culture and purity analysis of SFs using the four cell markers, vimentin, cluster of differentiation 90.2 (CD90.2; Thy-1.2), intracellular adhesion molecule 1 (CD54) and vascular cell adhesion molecule 1 (CD106). This method is efficient and a purified population of SFs can be obtained 10 days after the initiation of culture.
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Affiliation(s)
- Jinjun Zhao
- Department of Rheumatology and Immunology, Nanfang Hospital, Guangzhou, Guangdong 510515, P.R. China
| | - Qingqing Ouyang
- Department of Rheumatology and Immunology, Nanfang Hospital, Guangzhou, Guangdong 510515, P.R. China
| | - Ziyou Hu
- Research Center of Clinical Medicine, Nanfang Hospital, Guangzhou, Guangdong 510515, P.R. China
| | - Qin Huang
- Department of Rheumatology and Immunology, Nanfang Hospital, Guangzhou, Guangdong 510515, P.R. China
| | - Jing Wu
- Department of Rheumatology and Immunology, Nanfang Hospital, Guangzhou, Guangdong 510515, P.R. China
| | - Ran Wang
- Department of Rheumatology and Immunology, Nanfang Hospital, Guangzhou, Guangdong 510515, P.R. China
| | - Min Yang
- Department of Rheumatology and Immunology, Nanfang Hospital, Guangzhou, Guangdong 510515, P.R. China
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Warnock JJ, Bobe G, Duesterdieck-Zellmer KF. Fibrochondrogenic potential of synoviocytes from osteoarthritic and normal joints cultured as tensioned bioscaffolds for meniscal tissue engineering in dogs. PeerJ 2014; 2:e581. [PMID: 25289180 PMCID: PMC4183955 DOI: 10.7717/peerj.581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 08/26/2014] [Indexed: 12/11/2022] Open
Abstract
Meniscal tears are a common cause of stifle lameness in dogs. Use of autologous synoviocytes from the affected stifle is an attractive cell source for tissue engineering replacement fibrocartilage. However, the diseased state of these cells may impede in vitro fibrocartilage formation. Synoviocytes from 12 osteoarthritic (“oaTSB”) and 6 normal joints (“nTSB”) were cultured as tensioned bioscaffolds and compared for their ability to synthesize fibrocartilage sheets. Gene expression of collagens type I and II were higher and expression of interleukin-6 was lower in oaTSB versus nTSB. Compared with nTSB, oaTSB had more glycosaminoglycan and alpha smooth muscle staining and less collagen I and II staining on histologic analysis, whereas collagen and glycosaminoglycan quantities were similar. In conclusion, osteoarthritic joint—origin synoviocytes can produce extracellular matrix components of meniscal fibrocartilage at similar levels to normal joint—origin synoviocytes, which makes them a potential cell source for canine meniscal tissue engineering.
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Affiliation(s)
- Jennifer J Warnock
- College of Veterinary Medicine, Oregon State University , Corvallis, OR , United States
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University , Corvallis, OR , United States
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Ballard GA, Warnock JJ, Bobe G, Duesterdieck-Zellmer KF, Baker L, Baltzer WI, Ott J. Comparison of meniscal fibrochondrocyte and synoviocyte bioscaffolds toward meniscal tissue engineering in the dog. Res Vet Sci 2014; 97:400-8. [PMID: 24856453 DOI: 10.1016/j.rvsc.2014.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Revised: 02/03/2014] [Accepted: 05/04/2014] [Indexed: 02/06/2023]
Abstract
Tissue engineering is a promising field of study toward curing the meniscal deficient stifle; however the ideal cell type for this task is not known. We describe here the extraction of synoviocytes and meniscal fibrochondrocytes from arthroscopic debris from six dogs, which were cultured as tensioned bioscaffolds to synthesize meniscal-like fibrocartilage sheets. Despite the diseased status of the original tissues, synoviocytes and meniscal fibrochondrocytes had high viability at the time of removal from the joint. Glycosaminoglycan and collagen content of bioscaffolds did not differ. Meniscal fibrochondrocyte bioscaffolds contained more type II collagen, but collagen deposition was disorganized, with only 30-40% of cells viable. The collagen of synoviocyte bioscaffolds was organized into sheets and bands and 80-90% of cells were viable. Autologous, diseased meniscal fibrochondrocytes and synoviocytes are plausible cell sources for future meniscal tissue engineering research, however cell viability of meniscal fibrochondrocytes in the tensioned bioscaffolds was low.
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Affiliation(s)
- George A Ballard
- College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th St., Corvallis, OR 97331, USA
| | - Jennifer J Warnock
- College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th St., Corvallis, OR 97331, USA.
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University, 307 Linus Pauling Science Center, Corvallis, OR 97331, USA
| | - Katja F Duesterdieck-Zellmer
- College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th St., Corvallis, OR 97331, USA
| | - Lindsay Baker
- College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th St., Corvallis, OR 97331, USA
| | - Wendy I Baltzer
- College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th St., Corvallis, OR 97331, USA
| | - Jesse Ott
- College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th St., Corvallis, OR 97331, USA
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Synoviocyte neotissues towards in vitro meniscal tissue engineering. Res Vet Sci 2013; 95:1201-9. [DOI: 10.1016/j.rvsc.2013.07.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 07/25/2013] [Accepted: 07/27/2013] [Indexed: 01/24/2023]
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Xu D, Sun Y, Bao G, Liu W, Zhu X, Cui S, Fan J, Cui Z. MMP-1 overexpression induced by IL-1β: possible mechanism for inflammation in degenerative lumbar facet joint. J Orthop Sci 2013; 18:1012-9. [PMID: 24077757 DOI: 10.1007/s00776-013-0466-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 08/27/2013] [Indexed: 02/04/2023]
Abstract
BACKGROUND More and more attention has been focused on the inflammation or degeneration caused by biochemical factors in radiculopathy during lumbar facet joint degeneration. This study was designed to examine the expression and relationship of MMP-1/TIMP-1 and interleukin-1β (IL-1β), and to analyze the possible mechanism in degenerative lumbar facet joint disease. METHODS Lumbar facet joint cartilage and synovial tissues in 36 cases of posterior lumbar surgery were harvested to investigate IL-1β and MMP-1/TIMP-1 by immunohistochemistry and Western blot analysis. Double labeling immunofluorescence and real-time PCR, respectively, were used to assess the relationship between IL-1β and MMP-1. RESULTS IL-1β and MMP-1 were low in the lumbar disc herniation (LDH) group, and increased markedly in the lumbar spinal canal stenosis (LSCS) group (P < 0.05). However, there is no significant difference of TIMP-1 between LDH group and LSCS group (P > 0.05). Double staining results indicated that IL-1β overlapped with MMP-1 in the LSCS group. Moreover, real-time PCR results showed that MMP-1 mRNA in chondrocytes in vitro was affected in a dose- and time-dependent manner in response to IL-1β stimulation. CONCLUSIONS Overexpression of MMP-1, induced by IL-1β, plays an important role in the inflammatory process of lumbar facet joint degeneration.
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The effect of local anaesthetics on synoviocytes: a possible indirect mechanism of chondrolysis. Knee Surg Sports Traumatol Arthrosc 2013; 21:1468-74. [PMID: 22717739 DOI: 10.1007/s00167-012-2104-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 06/05/2012] [Indexed: 01/15/2023]
Abstract
PURPOSE While the effect of local anaesthetics on chondrocyte viability is widely documented, the effect of these medications on synoviocytes is largely unknown. The purpose of this study was to understand the effect of 0.5 % bupivacaine and 0.5 % bupivacaine with epinephrine on synoviocyte viability, cytokine and growth factor release, and breakdown product formation. METHODS Rabbit fibroblast-like synoviocyte (Type B) cultures were perfused with 0.5 % bupivacaine or 0.5 % bupivacaine with epinephrine (1:200,000) for 24 h. Cell viability was evaluated using a two-colour fluorescence assay. The supernatant was analysed using multiplex inflammatory and matrix metalloproteinase assays. RESULTS Synoviocytes treated for 24 h with 0.5 % bupivacaine with epinephrine demonstrated a significant decrease in viability (31.3 ± 19.4 % cell death) when compared with synoviocytes cultured in control media (3.8 ± 1.3 % cell death, p = 0.000) and those cultured in 0.5 % bupivacaine alone (12.6 ± 11.1 % cell death, p = 0.003). No significant decrease in cell viability was observed in synoviocytes treated with 0.5 % bupivacaine compared to those in control media (12.6 ± 11.1 % vs 3.8 ± 1.3 % cell death, p = 0.194). Significantly greater amounts of MMP-1 (47.0 ± 9.2 pg/ml) and MMP-3 (250.0 ± 68.8 pg/ml) were observed in 0.5 % bupivacaine cultures compared with controls (14.3 ± 14.3, p = 0.023 and 72.0 ± 84.9, p = 0.045, respectively). CONCLUSIONS 0.5 % bupivacaine with epinephrine caused a significant increase in cell death of the synoviocytes, while 0.5 % bupivacaine alone produced cell injury and a significant release of matrix metalloproteinases, which may also lead to indirect injury of the surrounding chondrocytes. These results may help explain the onset of chondrolysis observed in patients who have been treated with intra-articular local anaesthetics.
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Kim G, Kim E. Anti-Inflammation Effects of Low Intensity Laser Therapy on Monosodium Iodoacetate-induced Osteoarthritis in Rats. J Phys Ther Sci 2013. [DOI: 10.1589/jpts.25.173] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Gyeyeop Kim
- Department of Physical Therapy, College of Health and Welfare, Dongshin University
| | - Eunjung Kim
- Department of Physical Therapy, Nambu University: Department of Physical Therapy, Nambu University
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Warnock JJ, Baltzer WI, Duesterdieck-Zellmer K, Ott J. Minimally invasive synovium harvest for potential use in meniscal tissue engineering. Res Vet Sci 2012; 93:1472-80. [PMID: 22521160 DOI: 10.1016/j.rvsc.2012.02.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 01/04/2012] [Accepted: 02/10/2012] [Indexed: 11/25/2022]
Abstract
Tissue engineering is being investigated as a means for treating avascular meniscal injury or total meniscal loss in human and veterinary patients. The purpose of this study was to determine if an arthroscopic tissue shaver can be used to collect viable synoviocytes for in vitro culture during therapeutic stifle arthroscopy, with the long term goal of producing autologous meniscal fibrocartilage for meniscal tissue engineering. Synovium was harvested arthroscopically from 13 dogs with naturally occurring cranial cruciate ligament deficiency and obtained from 5 dogs with patellar luxation via arthrotomy. Cells harvested via arthroscopy and arthrotomy were treated with a chondrogenic growth factor protocol and analyzed for meniscal-like matrix constituents including collagens type I, II, and glycosaminoglycans. Arthrotomy and Arthroscopic origin cells formed contracted tissues containing collagen I, II and small amounts of GAG. These surgical methods provide clinically relevant access to synoviocytes for potential use in meniscal tissue engineering.
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Affiliation(s)
- Jennifer J Warnock
- Oregon State University, College of Veterinary Medicine, 105 Magruder Hall, Corvallis, OR 97331, United States.
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Giron-Michel J, Azzi S, Khawam K, Mortier E, Caignard A, Devocelle A, Ferrini S, Croce M, François H, Lecru L, Charpentier B, Chouaib S, Azzarone B, Eid P. Interleukin-15 plays a central role in human kidney physiology and cancer through the γc signaling pathway. PLoS One 2012; 7:e31624. [PMID: 22363690 PMCID: PMC3283658 DOI: 10.1371/journal.pone.0031624] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Accepted: 01/16/2012] [Indexed: 12/16/2022] Open
Abstract
The ability of Interleukin-15 (IL-15) to activate many immune antitumor mechanisms renders the cytokine a good candidate for the therapy of solid tumors, particularly renal cell carcinoma. Although IL-15 is being currently used in clinical trials, the function of the cytokine on kidney's components has not been extensively studied; we thus investigated the role of IL-15 on normal and tumor renal epithelial cells. Herein, we analyzed the expression and the biological functions of IL-15 in normal renal proximal tubuli (RPTEC) and in their neoplastic counterparts, the renal clear cell carcinomas (RCC). This study shows that RPTEC express a functional heterotrimeric IL-15Rαβγc complex whose stimulation with physiologic concentrations of rhIL-15 is sufficient to inhibit epithelial mesenchymal transition (EMT) commitment preserving E-cadherin expression. Indeed, IL-15 is not only a survival factor for epithelial cells, but it can also preserve the renal epithelial phenotype through the γc-signaling pathway, demonstrating that the cytokine possess a wide range of action in epithelial homeostasis. In contrast, in RCC in vitro and in vivo studies reveal a defect in the expression of γc-receptor and JAK3 associated kinase, which strongly impacts IL-15 signaling. Indeed, in the absence of the γc/JAK3 couple we demonstrate the assembly of an unprecedented functional high affinity IL-15Rαβ heterodimer, that in response to physiologic concentrations of IL-15, triggers an unbalanced signal causing the down-regulation of the tumor suppressor gene E-cadherin, favoring RCC EMT process. Remarkably, the rescue of IL-15/γc-dependent signaling (STAT5), by co-transfecting γc and JAK3 in RCC, inhibits EMT reversion. In conclusion, these data highlight the central role of IL-15 and γc-receptor signaling in renal homeostasis through the control of E-cadherin expression and preservation of epithelial phenotype both in RPTEC (up-regulation) and RCC (down-regulation).
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Affiliation(s)
- Julien Giron-Michel
- INSERM UMR 1014, Hôpital Paul Brousse, Villejuif, France
- Université Paris-Sud P11, Paris, France
| | - Sandy Azzi
- INSERM UMR 1014, Hôpital Paul Brousse, Villejuif, France
- Université Paris-Sud P11, Paris, France
| | - Krystel Khawam
- INSERM UMR 1014, Hôpital Paul Brousse, Villejuif, France
- Université Paris-Sud P11, Paris, France
| | - Erwan Mortier
- INSERM UMRS 892, Institut de Recherche Thérapeutique de l'Université de Nantes (IRT UN), Nantes, France
| | - Anne Caignard
- Institut Cochin, Université Paris Descartes, INSERM U1016, Paris, France
| | - Aurore Devocelle
- INSERM UMR 1014, Hôpital Paul Brousse, Villejuif, France
- Université Paris-Sud P11, Paris, France
| | - Silvano Ferrini
- Laboratory of Immunotherapy, Instituto Nazionale per la Ricerca sul Cancro, Genova, Italy
| | - Michela Croce
- Laboratory of Immunotherapy, Instituto Nazionale per la Ricerca sul Cancro, Genova, Italy
| | - Hélène François
- INSERM UMR 1014, Hôpital Paul Brousse, Villejuif, France
- Université Paris-Sud P11, Paris, France
| | - Lola Lecru
- INSERM UMR 1014, Hôpital Paul Brousse, Villejuif, France
- Université Paris-Sud P11, Paris, France
| | - Bernard Charpentier
- INSERM UMR 1014, Hôpital Paul Brousse, Villejuif, France
- Université Paris-Sud P11, Paris, France
| | - Salem Chouaib
- INSERM UMR 753, Université de Paris-Sud, Institut Gustave Roussy (IGR), Villejuif, France
| | - Bruno Azzarone
- INSERM UMR 1014, Hôpital Paul Brousse, Villejuif, France
- Université Paris-Sud P11, Paris, France
- * E-mail: (BA); (PE)
| | - Pierre Eid
- INSERM UMR 1014, Hôpital Paul Brousse, Villejuif, France
- Université Paris-Sud P11, Paris, France
- * E-mail: (BA); (PE)
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Jones E, McGonagle D. Synovial mesenchymal stem cells in vivo: Potential key players for joint regeneration. World J Rheumatol 2011; 1:4-11. [DOI: 10.5499/wjr.v1.i1.4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Unlike bone marrow (BM) mesenchymal stem cells (MSCs), whose in vivo identity has been actively explored in recent years, the biology of MSCs in the synovium remains poorly understood. Synovial MSCs may be of great importance to rheumatology and orthopedics because of the direct proximity and accessibility of the synovium to cartilage, ligament, and meniscus. Their excellent chondrogenic capabilities and suggested transit through the synovial fluid, giving unhindered access to the joint surface, further support a pivotal role for synovial MSCs in homeostatic joint repair. This review highlights several unresolved issues pertaining to synovial MSC isolation, topography, and their relationship with pericytes, synovial fibroblasts, and synovial fluid MSCs. Critically reviewing published data on synovial MSCs, we also draw from our experience of exploring the in vivo biology of MSCs in the BM to highlight key differences. Extending our knowledge of synovial MSCs in vivo could lead to novel therapeutic strategies for arthritic diseases.
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Orita S, Koshi T, Mitsuka T, Miyagi M, Inoue G, Arai G, Ishikawa T, Hanaoka E, Yamashita K, Yamashita M, Eguchi Y, Toyone T, Takahashi K, Ohtori S. Associations between proinflammatory cytokines in the synovial fluid and radiographic grading and pain-related scores in 47 consecutive patients with osteoarthritis of the knee. BMC Musculoskelet Disord 2011; 12:144. [PMID: 21714933 PMCID: PMC3144455 DOI: 10.1186/1471-2474-12-144] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2010] [Accepted: 06/30/2011] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND One of the sources of knee pain in osteoarthritis (OA) is believed to be related to local chronic inflammation of the knee joints, which involves the production of inflammatory cytokines such as tumor necrosis factor alpha (TNFα), interleukin (IL)-6, and nerve growth factor (NGF) in the synovial membrane, and these cytokines are believed to promote pathological OA. In the present study, correlations between proinflammatory cytokines in knee synovial fluid and radiographic changes and functional scores and pain scores among OA patients were examined. METHODS Synovial fluid was harvested from the knees of 47 consecutive OA patients, and the levels of TNFα, IL-6, and NGF were measured using enzyme-linked immunosorbent assays. Osteoarthritic knees were classified using Kellgren-Lawrence (KL) grading (1-4). The Western Ontario and McMaster University Osteoarthritis Index (WOMAC) was used to assess self-reported physical function, pain, and stiffness. RESULTS TNFα and IL-6 were detectable in knee synovial, whereas NGF was not. TNFα was not correlated with the KL grade, whereas IL-6 had a significantly negative correlation. We observed differences in the correlations between TNFα and IL-6 with WOMAC scores and their subscales (pain, stiffness, and physical function). TNFα exhibited a significant correlation with the total score and its 3 subscales, whereas IL-6 exhibited a moderately significant negative correlation only with the subscale of stiffness. CONCLUSIONS The present study demonstrated that the concentrations of proinflammatory cytokines are correlated with KL grades and WOMAC scores in patients with knee OA. Although TNFα did not have a significant correlation with the radiographic grading, it was significantly associated with the WOMAC score. IL-6 had a significant negative correlation with the KL grading, whereas it had only a weakly significant correlation with the subscore of stiffness. The results suggest that these cytokines play a role in the pathogenesis of synovitis in osteoarthritic knees in different ways: TNFα is correlated with pain, whereas IL-6 is correlated with joint function.
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Affiliation(s)
- Sumihisa Orita
- Department of Orthopaedic Surgery, Chiba Rosai Hospital, Chiba, Japan.
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Orita S, Ishikawa T, Miyagi M, Ochiai N, Inoue G, Eguchi Y, Kamoda H, Arai G, Toyone T, Aoki Y, Kubo T, Takahashi K, Ohtori S. Pain-related sensory innervation in monoiodoacetate-induced osteoarthritis in rat knees that gradually develops neuronal injury in addition to inflammatory pain. BMC Musculoskelet Disord 2011; 12:134. [PMID: 21679434 PMCID: PMC3142251 DOI: 10.1186/1471-2474-12-134] [Citation(s) in RCA: 150] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Accepted: 06/16/2011] [Indexed: 01/07/2023] Open
Abstract
Background The exact mechanism of knee osteoarthritis (OA)-associated pain is unclear, whereas mixed evidence of inflammatory pain and neuropathic pain has been noted. We aimed to investigate pain-related sensory innervation in a monoiodoacetate (MIA)-induced model of OA. Methods Sixty of seventy female Sprague Dawley rats of six week-old underwent intra-articular MIA and fluorogold (FG) retrograde neurotracer injection into their right (ipsilateral) knee, while their left knees were treated with FG in saline as a control (contralateral knee). Other rats were treated with FG only bilaterally, and used as controls. Rats were evaluated for tactile allodynia using von Frey hairs. Proinflammatory mediators in the knee soft tissues, including tumor necrosis factor (TNF)-α, interleukin (IL)-6, and nerve growth factor (NGF), were quantified using ELISAs to evaluate inflammation in the knee after 1, 4, 7,14,21, and 28 days post injection:. Dorsal root ganglia (DRG) were immunostained for three molecules after 7,14,21, and 28 days post injection: calcitonin gene-related peptide (CGRP), a marker of inflammatory pain; and activating transcription factor-3 (ATF3) and growth associated protein-43 (GAP43), as markers for nerve injury and regenerating axons. The distribution of microglia in the spinal cord were also evaluated, because they have been reported to increase in neuropathic pain states. These evaluations were performed up to 28 days postinjection. P < 0.05 was considered significant. Results Progressive tactile allodynia and elevated cytokine concentrations were observed in ipsilateral knees. CGRP-immunoreactive (-ir) ipsilateral DRG neurons significantly increased, peaking at 14 days postinjection, while expression of FG-labeled ATF3-ir or ATF3-ir GAP43-ir DRG neurons significantly increased in a time-dependent manner. Significant proliferation of microglia were found with time in the ipsilateral dorsal horn. Conclusions Pain-related characteristics in a MIA-induced rat OA model can originate from an inflammatory pain state induced by the local inflammation initiated by inflammatory cytokines, and that state will be followed by gradual initiation of neuronal injury, which may induce the neuropathic pain state.
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Affiliation(s)
- Sumihisa Orita
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
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Warnock JJ, Fox DB, Stoker AM, Cook JL. Evaluation of in vitro growth factor treatments on fibrochondrogenesis by synovial membrane cells from osteoarthritic and nonosteoarthritic joints of dogs. Am J Vet Res 2011; 72:500-11. [PMID: 21453151 DOI: 10.2460/ajvr.72.4.500] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine the in vitro effects of selected growth factors on fibrochondrogenesis by synovial membrane cells from nonosteoarthritic (normal) and osteoarthritic joints of dogs. ANIMALS 5 dogs with secondary osteoarthritis of shoulder or stifle joints and 6 dogs with normal joints. PROCEDURES Synovial membrane cells were harvested from normal and osteoarthritic joints and cultured in monolayer with or without (control) basic fibroblast growth factor, transforming growth factor-β1, and insulin-like growth factor-1. In the cultured cells, fibrochondrogenesis was measured by use of a real-time reverse transcriptase PCR assay to determine relative expressions of collagen I, collagen II, and aggrecan genes and of 3 genes involved in embryonic chondrogenesis: Sry-type homeobox protein-9 (SOX-9), frizzled-motif associated with bone development (Frzb), and regulator of G-protein signaling-10 (RGS-10). Tissue collagen content was measured via a hydroxyproline assay, and sulfated glycosaminoglycan content was measured via a 1,9-dimethylmethylene blue assay. Cellularity was determined via a double-stranded DNA assay. Immunohistochemical analysis for collagens I and II was also performed. RESULTS In vitro collagen synthesis was enhanced by growth factor stimulation. Although osteoarthritic-joint synoviocytes could undergo a fibrocartilage-like phenotypic shift, their production of collagenous extracellular matrix was less than that of normal-joint synoviocytes. Gene expressions of SOX-9 and RGS-10 were highest in the osteoarthritic-joint cells; Frzb expression was highest in growth factor treated cells. CONCLUSIONS AND CLINICAL RELEVANCE Autogenous synovium may be a viable cell source for meniscal tissue engineering. Gene expressions of SOX-9 and RGS-10 may be potential future targets for in vitro enhancement of chondrogenesis.
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Affiliation(s)
- Jennifer J Warnock
- Comparative Orthopaedic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA.
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Chen L, Ling P, Jin Y, Zhang T. Hyaluronic acid in combination with chondroitin sulfate and hyaluronic acid improved the degeneration of synovium and cartilage equally in rabbits with osteoarthritis. Drug Discov Ther 2011; 5:190-4. [DOI: 10.5582/ddt.2011.v5.4.190] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Lei Chen
- Shandong Bausch & Lomb Freda Co., Ltd
- Shandong Academy of Pharmaceutical Sciences
| | | | - Yan Jin
- Shandong Academy of Pharmaceutical Sciences
| | - Tianmin Zhang
- School of Pharmaceutical Sciences, Shandong University
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Abstract
To understand the cellular and molecular events contributing to arthrofibrosis, we used an adenovirus to deliver and overexpress transforming growth factor-beta 1 (TGF-β1) cDNA (Ad.TGF-β1) in the knee joints of immunocompromised rats. Following delivery, animals were killed periodically, and joint tissues were examined macroscopically and histologically. PCR-array was used to assay alterations in expression patterns of extracellular matrix (ECM)-associated genes. By days 5 and 10, TGF-β1 induced an increase in knee diameter and complete encasement of joints in dense scar-like tissue, locking joints at 90° of flexion. Histologically, massive proliferation of synovial fibroblasts was seen, followed by their differentiation into myofibroblasts. The fibrotic tissue displaced the normal architecture of the joint capsule and fused with articular cartilage. RNA expression profiles showed high levels of transcription of numerous MMPs, matricellular and ECM proteins. By day 30, the phenotype of the fibrotic tissue had undergone chondrometaplasia, indicated by cellular morphology, matrix composition and >100-fold increases in expression of collagen type II and cartilage link protein. Pre-labeling of articular cells by injection with recombinant lentivirus containing eGFP cDNA showed fibrotic/cartilaginous tissues appeared to arise almost entirely from local proliferation and differentiation of resident fibroblasts. Altogether, these results indicate that TGF-β1 is a potent inducer of arthrofibrosis, and illustrate the proliferative potential and plasticity of articular fibroblasts. They suggest the mechanisms causing arthrofibrosis share many aspects with tumorigenesis.
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Kapetanakis S, Drygiannakis I, Kazakos K, Papanas N, Kolios G, Kouroumalis E, Verettas DA. Serum TGF-beta2 and TGF-beta3 are increased and positively correlated to pain, functionality, and radiographic staging in osteoarthritis. Orthopedics 2010; 33. [PMID: 20704110 DOI: 10.3928/01477447-20100625-09] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The goal of this study was to verify or reject the hypothesis that systematic differences exist in various profibrotic or antifibrotic factors between osteoarthritic patients and controls, as well as between different stages of osteoarthritis. The study group comprised 63 patients with knee osteoarthritis and 18 controls. Transforming growth factor-beta (TGF-beta)1, -2, -3; tissue inhibitor of metalloproteinase (TIMP)-1 protein levels; and gelatinolytic activity of matrix metalloproteinase (MMP)-1, -2, -3, -9 activities were measured by enzyme-linked immunosorbent assay and gelatin zymography, respectively. Visual analog scale scores, Western Ontario and McMaster Universities Arthritis Index (WOMAC) scores, Lequesne clinical osteoarthritis scales, and Kellgren-Lawrence radiographic grading were recorded for each patient.Transforming growth factor-beta2 and -3 (in contrast to TGF-beta1 and TIMP-1) serum protein levels were significantly higher in osteoarthritic patients compared to controls (210%+/-14% [P<.001] and 232%+/-7% [P<10(-7)], respectively). Additionally, TGF-beta2 and -3 were strongly positively correlated to Kellgren-Lawrence radiographic grading of the disease (P<10(-5) and P<10(-7), respectively). Moreover, TGF-beta2 correlated positively with the WOMAC scale (P=.007). However, TIMP-1 decreased as osteoarthritis progressed clinically, but remained irrelevant to radiographic staging. Furthermore, activities of MMP-2 and -9, but not MMP-1+/-3, were lower in patients with osteoarthritis.
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Affiliation(s)
- Stilianos Kapetanakis
- Department of Orthopedics, University Hospital of Alexandroupolis, Heraklion, Greece
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Niedermeier M, Pap T, Korb A. Therapeutic opportunities in fibroblasts in inflammatory arthritis. Best Pract Res Clin Rheumatol 2010; 24:527-40. [DOI: 10.1016/j.berh.2010.02.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Genistein induces adipogenesis but inhibits leptin induction in human synovial fibroblasts. J Transl Med 2009; 89:811-22. [PMID: 19434061 DOI: 10.1038/labinvest.2009.41] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
It was shown recently that synovial fibroblast transformation into adipocytes reduced the expression of interleukin-6 (IL-6) and IL-8. However, the synovial fibroblast adipogenesis was inhibited in inflammatory conditions induced by the tumor necrosis factor-alpha (TNF-alpha). Furthermore, adipogenesis is often accompanied by leptin production, a proinflammatory adipokine in rheumatic diseases. In this study, we tested the phytohormone genistein for adipogenic and anti-inflammatory properties on human synovial fibroblasts. Results showed that genistein was able to transform synovial fibroblasts into adipocytes that expressed perilipin-A and produced adiponectin, but not leptin. Furthermore, genistein enhanced glucocorticoid-mediated synovial fibroblast adipogenesis and, in parallel, downregulated glucocorticoid-induced leptin and leptin receptor. Endogenous and TNF-alpha-induced expressions of IL-6, IL-8, p38, p65 and C/EBP-beta were also downregulated by genistein, showing its anti-inflammatory properties. Peroxisome proliferator- activated receptor-gamma (PPAR-gamma) agonist, rosiglitazone, had a synergic effect on genistein-induced adipogenesis, whereas the non-active tyrosine kinase inhibitor, daidzein, had a significantly inferior adipogenic activity than genistein. The Janus kinase-2 tyrosine kinase inhibitor, AG 490, mimicked the anti-leptin effect of genistein. These results showed that genistein-induced adipogenesis involves PPAR-gamma induction and tyrosine kinase inhibition. In conclusion, genistein, alone or coupled with glucocorticoids, have both adipogenic and anti-inflammatory effects on synovial fibroblasts.
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Pei M, He F, Boyce BM, Kish VL. Repair of full-thickness femoral condyle cartilage defects using allogeneic synovial cell-engineered tissue constructs. Osteoarthritis Cartilage 2009; 17:714-22. [PMID: 19128988 DOI: 10.1016/j.joca.2008.11.017] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Accepted: 11/28/2008] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Synovium-derived stem cells (SDSCs) have proven to be superior in cartilage regeneration compared with other sources of mesenchymal stem cells. We hypothesized that conventionally passaged SDSCs can be engineered in vitro into cartilage tissue constructs and the engineered premature tissue can be implanted to repair allogeneic full-thickness femoral condyle cartilage defects without immune rejection. METHODS Synovial tissue was harvested from rabbit knee joints. Passage 3 SDSCs were mixed with fibrin glue and seeded into non-woven polyglycolic acid (PGA) mesh. After 1-month incubation with growth factor cocktails, the premature tissue was implanted into rabbit knees to repair osteochondral defects with Collagraft as a bone substitute in the Construct group. Fibrin glue-saturated PGA/Collagraft composites were used as a Scaffold group. The defect was left untreated as an Empty group. RESULTS SDSCs were engineered in rotating bioreactor systems into premature cartilage, which displayed the expression of sulfated glycosaminoglycan (GAG), collagen II, collagen I, and macrophages. Six months after implantation with premature tissue, cartilage defects were full of smooth hyaline-like cartilage with no detectable collagen I and macrophages but a high expression of collagen II and GAG, which were also integrated with the surrounding native cartilage. The Scaffold and Empty groups were resurfaced with fibrous-like and fibrocartilage tissue, respectively. CONCLUSION Allogeneic SDSC-based premature tissue constructs are a promising stem cell-based approach for cartilage defects. Although in vitro data suggest that contaminated macrophages affected the quality of SDSC-based premature cartilage, effects of macrophages on in vivo tissue regeneration and integration necessitate further investigation.
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Affiliation(s)
- M Pei
- Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV 26506, USA.
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Sutton S, Clutterbuck A, Harris P, Gent T, Freeman S, Foster N, Barrett-Jolley R, Mobasheri A. The contribution of the synovium, synovial derived inflammatory cytokines and neuropeptides to the pathogenesis of osteoarthritis. Vet J 2009; 179:10-24. [PMID: 17911037 DOI: 10.1016/j.tvjl.2007.08.013] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2006] [Revised: 08/08/2007] [Accepted: 08/10/2007] [Indexed: 02/07/2023]
Abstract
Osteoarthritis (OA) is one of the most common and disabling chronic joint disorders affecting horses, dogs and humans. Synovial inflammation or synovitis is a frequently observed phenomenon in osteoarthritic joints and contributes to the pathogenesis of OA through formation of various catabolic and pro-inflammatory mediators altering the balance of cartilage matrix degradation and repair. Catabolic mediators produced by the inflamed synovium include pro-inflammatory cytokines, nitric oxide, prostaglandin E(2) and several neuropeptides, which further contribute to the pathogenesis of OA by increasing cartilage degradation. Recent studies suggest that substance P, corticotropin-releasing factor, urocortin and vasoactive intestinal peptide may also be involved in OA development, but the precise role of these neuropeptides in the pathogenesis of OA is not known. Since increased production of matrix metalloproteinases by the synovium is stimulated by pro-inflammatory cytokines, future anti-inflammatory therapies should focus on the synovium as a means of controlling subsequent inflammatory damage.
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Affiliation(s)
- Saski Sutton
- Department of Veterinary Preclinical Sciences, University of Liverpool, Liverpool L69 7ZJ, UK
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Wu H, Du J, Zheng Q. Expression of MMP-1 in cartilage and synovium of experimentally induced rabbit ACLT traumatic osteoarthritis: immunohistochemical study. Rheumatol Int 2008; 29:31-6. [DOI: 10.1007/s00296-008-0636-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2008] [Accepted: 06/15/2008] [Indexed: 10/21/2022]
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Shakibaei M, Csaki C, Nebrich S, Mobasheri A. Resveratrol suppresses interleukin-1beta-induced inflammatory signaling and apoptosis in human articular chondrocytes: potential for use as a novel nutraceutical for the treatment of osteoarthritis. Biochem Pharmacol 2008; 76:1426-39. [PMID: 18606398 DOI: 10.1016/j.bcp.2008.05.029] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Revised: 04/02/2008] [Accepted: 05/16/2008] [Indexed: 01/10/2023]
Abstract
Osteoarthritis is an inflammatory disease of load-bearing synovial joints that is currently treated with drugs that exhibit numerous side effects and are only temporarily effective on pain, the main symptom of the disease. Consequently, there is an acute need for novel, safe and more effective chemotherapeutic agents for the treatment of osteoarthritis and related arthritic diseases. Resveratrol is a phytoalexin stilbene produced naturally by plants including red grapes, peanuts and various berries. Recent research in various cell models has demonstrated that resveratrol is safe and has potent anti-inflammatory properties. However, its potential for treating arthritic conditions has not been explored. In this study we provide experimental evidence that resveratrol inhibits the expression of VEGF, MMP-3, MMP-9 and COX-2 in human articular chondrocytes stimulated with the pro-inflammatory cytokine IL-1beta. Since these gene products are regulated by the transcription factor NF-kappaB, we investigated the effects of resveratrol on IL-1beta-induced NF-kappaB signaling pathway. Resveratrol, like N-Ac-Leu-Leu-norleucinal (ALLN) suppressed IL-1beta-induced proteasome function and the degradation of IkappaBalpha (an inhibitor of NF-kappaB) without affecting IkappaBalpha kinase activation, IkappaBalpha-phosphorylation or IkappaBalpha-ubiquitination which suppressed nuclear translocation of the p65 subunit of NF-kappaB and its phosphorylation. Furthermore, we observed that resveratrol as well as ALLN inhibited IL-1beta-induced apoptosis, caspase-3 activation and PARP cleavage in human articular chondrocytes. In summary, our results suggest that resveratrol suppresses apoptosis and inflammatory signaling through its actions on the NF-kappaB pathway in human chondrocytes. We propose that resveratrol should be explored further for the prophylactic treatment of osteoarthritis in humans and companion animals.
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Affiliation(s)
- Mehdi Shakibaei
- Ludwig-Maximilians-University Munich, Faculty of Medicine, Institute of Anatomy, Musculoskeletal Research Group, Pettenkoferstrasse 11, D-80336 Munich, Germany.
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Pearle AD, Scanzello CR, George S, Mandl LA, DiCarlo EF, Peterson M, Sculco TP, Crow MK. Elevated high-sensitivity C-reactive protein levels are associated with local inflammatory findings in patients with osteoarthritis. Osteoarthritis Cartilage 2007; 15:516-23. [PMID: 17157039 DOI: 10.1016/j.joca.2006.10.010] [Citation(s) in RCA: 226] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2006] [Accepted: 10/14/2006] [Indexed: 02/02/2023]
Abstract
OBJECTIVE C-reactive protein (CRP) has been associated with disease progression in patients with osteoarthritis (OA), but the reasons for this remain unclear. We hypothesized that higher CRP would be related to local inflammatory findings in the joints of patients with OA. METHODS Plasma and synovial membrane specimens from 54 OA patients undergoing total hip or knee arthroplasty or arthroscopy were obtained. Synovial fluid was obtained from 25 of these patients. Hematoxylin and eosin stained synovial membrane sections were scored for degree of inflammatory cell infiltration. Plasma high-sensitivity CRP (hsCRP) levels, and serum and synovial fluid interleukin (IL)-6 and IL-1beta levels were measured by enzyme-linked immunosorbent assay. RESULTS Fifty-seven percent of patients with idiopathic OA had inflammatory infiltrates within the synovial membrane. The mean hsCRP level in patients with inflammatory infiltrates was significantly higher than those without inflammation (4.7 +/- 5.0 mg/L vs 1.7 +/- 3.6 mg/L, P = 0.003). There were significant correlations between hsCRP levels and synovial fluid IL-6 (r = 0.64, P = 0.0006), degree of synovial inflammatory infiltration (r = 0.43, P = 0.002), and body mass index (r = 0.31, P = 0.02). Multivariate analysis indicated that only degree of inflammatory infiltrate was significantly associated with hsCRP level (P = 0.026). CONCLUSION These results suggest that systemic hsCRP levels reflect synovial inflammation in OA patients, perhaps by means of synovial IL-6 production. Future studies are needed to clarify how these infiltrates and their products may contribute to disease pathogenesis.
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Affiliation(s)
- A D Pearle
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York, NY 10021, USA
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Changes in immunolocalisation of beta-dystroglycan and specific degradative enzymes in the osteoarthritic synovium. Osteoarthritis Cartilage 2006; 14:1181-8. [PMID: 16759884 DOI: 10.1016/j.joca.2006.04.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2005] [Accepted: 04/10/2006] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate the immunolocalisation of beta-dystroglycan (beta-DG) and specific matrix metalloproteinases (MMPs)-3, -9, -13 and a disintegrin like and metalloproteinase thrombospondin type 1 motif 4 (ADAMTS-4) within the joint tissues of patients with osteoarthritis (OA) and unaffected controls. DESIGN Cartilage, synovium and synovial fluid were obtained from the hip joints of five osteoarthritic (patients undergoing total hip replacement) and five control hip joints (patients undergoing hemiarthroplasty for femoral neck fracture). The samples were analysed for beta-DG protein using Western blot technique and by immunohistochemistry for tissue distribution of beta-DG, MMP-3, -9, -13, and ADAMTS-4. RESULTS beta-DG was detected in the smooth muscle of both normal and osteoarthritic synovial blood vessels. Importantly, beta-DG was detected in endothelium of blood vessels of OA synovium, but not in the control endothelium. In the endothelium of osteoarthritic synovial blood vessels, beta-DG co-localised with MMP-3 and -9. MMP-13 and ADAMTS-4 showed no endothelial staining, and only weak staining of the vascular smooth muscle was found. In contrast, we did not detect beta-DG protein in cartilage or synovial fluid. CONCLUSIONS beta-DG has been shown to have a role in angiogenesis, and our results demonstrate for the first time that there are clear differences in beta-DG staining between OA and control synovial blood vessels. The specific immunolocalisation of beta-DG within endothelium of inflamed OA blood vessels and its co-localisation with MMP-3 and -9, reported to have pro-angiogenic roles and believed to be involved in beta-DG cleavage, may also suggest that beta-DG plays a role in angiogenesis accompanying OA.
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Brouty-Boyé D. Developmental biology of fibroblasts and neoplastic disease. PROGRESS IN MOLECULAR AND SUBCELLULAR BIOLOGY 2005; 40:55-77. [PMID: 17153480 DOI: 10.1007/3-540-27671-8_3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- D Brouty-Boyé
- INSERM U602, Institut André Lwoff, Hôpital Paul Brousse, 12 avenue Paul Vaillant-Couturier, 94807 Villejuif cedex, France
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