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Udomsinprasert W, Mookkhan N, Tabtimnark T, Aramruang T, Ungsudechachai T, Saengsiwaritt W, Jittikoon J, Chaikledkaew U, Honsawek S. Cartilage oligomeric matrix protein as a potential biomarker for knee osteoarthritis. Bone Joint Res 2024; 13:261-271. [PMID: 38826065 PMCID: PMC11142849 DOI: 10.1302/2046-3758.136.bjr-2023-0180.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2024] Open
Abstract
Aims This study aimed to determine the expression and clinical significance of a cartilage protein, cartilage oligomeric matrix protein (COMP), in knee osteoarthritis (OA) patients. Methods A total of 270 knee OA patients and 93 healthy controls were recruited. COMP messenger RNA (mRNA) and protein levels in serum, synovial fluid, synovial tissue, and fibroblast-like synoviocytes (FLSs) of knee OA patients were determined using enzyme-linked immunosorbent assay, real-time polymerase chain reaction, and immunohistochemistry. Results COMP protein levels were significantly elevated in serum and synovial fluid of knee OA patients, especially those in the advanced stages of the disease. Serum COMP was significantly correlated with radiological severity as well as measures of body composition, physical performance, knee pain, and disability. Receiver operating characteristic curve analysis unveiled a diagnostic value of serum COMP as a biomarker of knee OA (41.64 ng/ml, area under the curve (AUC) = 1.00), with a sensitivity of 99.6% and a specificity of 100.0%. Further analysis uncovered that COMP mRNA expression was markedly upregulated in the inflamed synovium of knee OA, consistent with immunohistochemical staining revealing localization of COMP protein in the lining and sub-lining layers of knee OA inflamed synovium. Most notably, relative COMP mRNA expression in knee OA synovium was positively associated with its protein levels in serum and synovial fluid of knee OA patients. In human knee OA FLSs activated with tumour necrosis factor-alpha, COMP mRNA expression was considerably up-regulated in a time-dependent manner. Conclusion All results indicate that COMP might serve as a supportive diagnostic marker for knee OA in conjunction with the standard diagnostic methods.
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Affiliation(s)
| | - Natcha Mookkhan
- Department of Biochemistry, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Thanyalak Tabtimnark
- Department of Biochemistry, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Teerapong Aramruang
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | | | | | - Jiraphun Jittikoon
- Department of Biochemistry, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Usa Chaikledkaew
- Social and Administrative Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
- Mahidol University Health Technology Assessment (MUHTA) Graduate Program, Mahidol University, Bangkok, Thailand
| | - Sittisak Honsawek
- Center of Excellence in Osteoarthritis and Musculoskeleton, Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
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Coppock JA, McNulty AL, Porter Starr KN, Holt AG, Borack MS, Kosinski AS, Collins AT, Bales CW, DeFrate LE. The effects of a 6-month weight loss intervention on physical function and serum biomarkers in older adults with and without osteoarthritis. OSTEOARTHRITIS AND CARTILAGE OPEN 2023; 5:100376. [PMID: 37719442 PMCID: PMC10499923 DOI: 10.1016/j.ocarto.2023.100376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 09/19/2023] Open
Abstract
Objective To examine the effects of a 6-month weight loss intervention on physical function, inflammatory biomarkers, and metabolic biomarkers in both those with and without osteoarthritis (OA). Design 59 individuals ≥60 years old with obesity and a functional impairment were enrolled into this IRB approved clinical trial and randomized into one of two 6-month weight loss arms: a higher protein hypocaloric diet or a standard protein hypocaloric diet. All participants were prescribed individualized 500-kcal daily-deficit diets, with a goal of 10% weight loss. Additionally, participants participated in three, low-intensity, exercise sessions per week. Physical function, serum biomarkers and body composition data were assessed at the baseline and 6-month timepoints. Statistical analyses assessed the relationships between biomarkers, physical function, body composition, and OA status as a result of the intervention. Results No group effects of dietary intervention were detected on any outcome measures (multiple p > 0.05). During the 6-month trial, participants lost 6.2 ± 4.0% of their bodyweight (p < 0.0001) and experienced improved physical function on the Short-Performance-Physical-Battery (p < 0.0001), 8-foot-up-and-go (p < 0.0001), and time to complete 10-chair-stands (p < 0.0001). Adiponectin concentrations (p = 0.0480) were elevated, and cartilage oligomeric matrix protein (COMP) concentrations (p < 0.0001) were reduced; further analysis revealed that reductions in serum COMP concentrations were greater in OA-negative individuals. Conclusions These results suggest that weight loss in older adults with and without OA may provide a protective effect to cartilage and OA. In particular, OA-negative individuals may be able to mitigate changes associated with OA through weight loss.
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Affiliation(s)
- James A. Coppock
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Amy L. McNulty
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, NC, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | - Kathryn N. Porter Starr
- Department of Medicine, Duke University School of Medicine, and Durham VA Medical Center, Durham, NC, USA
- Center for the Study of Aging and Human Development, Duke University School of Medicine, Durham, NC, USA
| | - Abigail G. Holt
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Michael S. Borack
- Center for the Study of Aging and Human Development, Duke University School of Medicine, Durham, NC, USA
| | - Andrzej S. Kosinski
- Department of Biostatistics & Bioinformatics, Duke University, Durham, NC, USA
| | - Amber T. Collins
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Connie W. Bales
- Department of Medicine, Duke University School of Medicine, and Durham VA Medical Center, Durham, NC, USA
- Center for the Study of Aging and Human Development, Duke University School of Medicine, Durham, NC, USA
| | - Louis E. DeFrate
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, NC, USA
- Department of Mechanical Engineering and Materials Science, Duke University, Durham NC, USA
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Simonds MM, Sullivan KE, Brescia AC. Single-cell analysis reveals heterogeneity of juvenile idiopathic arthritis fibroblast-like synoviocytes with implications for disease subtype. Arthritis Res Ther 2022; 24:225. [PMID: 36167601 PMCID: PMC9513865 DOI: 10.1186/s13075-022-02913-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/19/2022] [Indexed: 12/02/2022] Open
Abstract
Background Fibroblast-like synoviocytes (FLS) play a crucial role in JIA pathogenesis; however, the mechanisms by which they contribute to disease progression are not well described. Previous studies demonstrated that rheumatoid arthritis FLS are heterogeneous, and subpopulations with transformed, aggressive phenotypes cause invasive and destructive disease activity. We employ single-cell RNA-sequencing (scRNA-seq) to investigate JIA FLS heterogeneity and gene expression that distinguishes JIA subtypes. Methods JIA FLS cell lines from three persistent oligoarticular, three pre-extension oligoarticular, and three polyarticular subtypes were cultured. scRNA-seq was performed by Genewiz according to 10 × Genomics Chromium protocols. SeuratR package was used for QC, analysis, and exploration of data. Results FLS are heterogeneous and have characteristics of fibroblasts, chondrocytes, and smooth muscle cells. The chondrocyte-like subpopulation is the predominant cell type and percentages of this subpopulation increase with disease severity. Despite overlapping subpopulations, the chondrocyte-like cells have unique genetic fingerprints that distinguish between JIA subtypes. LRRC15, GREM1, and GREM2 are overexpressed in chondrocyte-like cells from persistent oligoarticular JIA FLS compared to pre-extension oligoarticular JIA FLS. S100A4, TIMP3, and NBL1 are overexpressed in pre-extension oligoarticular JIA FLS compared to polyarticular JIA FLS. CRLF1, MFAP5, and TNXB are overexpressed in persistent oligoarticular JIA FLS compared to polyarticular JIA FLS. Conclusions We found biologically relevant differences in gene expression between JIA subtypes that support a critical role for FLS in pathogenesis. We also demonstrate that gene expression within the chondrocyte-like subpopulation can be used to distinguish between these subtypes. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-022-02913-8.
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Affiliation(s)
- Megan M Simonds
- Nemours Biomedical Research, Nemours Children's Health, Delaware, 1701 Rockland Rd, Wilmington, DE, 19803, USA.
| | - Kathleen E Sullivan
- Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
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Cartilage Oligomeric Matrix Protein, Diseases, and Therapeutic Opportunities. Int J Mol Sci 2022; 23:ijms23169253. [PMID: 36012514 PMCID: PMC9408827 DOI: 10.3390/ijms23169253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/05/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Cartilage oligomeric matrix protein (COMP) is an extracellular matrix (ECM) glycoprotein that is critical for collagen assembly and ECM stability. Mutations of COMP cause endoplasmic reticulum stress and chondrocyte apoptosis, resulting in rare skeleton diseases. The bouquet-like structure of COMP allows it to act as a bridging molecule that regulates cellular phenotype and function. COMP is able to interact with many other ECM components and binds directly to a variety of cellular receptors and growth factors. The roles of COMP in other skeleton diseases, such as osteoarthritis, have been implied. As a well-established biochemical marker, COMP indicates cartilage turnover associated with destruction. Recent exciting achievements indicate its involvement in other diseases, such as malignancy, cardiovascular diseases, and tissue fibrosis. Here, we review the basic concepts of COMP and summarize its novel functions in the regulation of signaling events. These findings renew our understanding that COMP has a notable function in cell behavior and disease progression as a signaling regulator. Interestingly, COMP shows distinct functions in different diseases. Targeting COMP in malignancy may withdraw its beneficial effects on the vascular system and induce or aggravate cardiovascular diseases. COMP supplementation is a promising treatment for OA and aortic aneurysms while it may induce tissue fibrosis or cancer metastasis.
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Nishida Y, Hashimoto Y, Orita K, Nishino K, Kinoshita T, Nakamura H. Serum Cartilage Oligomeric Matrix Protein Detects Early Osteoarthritis in Patients With Anterior Cruciate Ligament Deficiency. Arthroscopy 2022; 38:873-878. [PMID: 34358642 DOI: 10.1016/j.arthro.2021.06.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 05/28/2021] [Accepted: 06/30/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To investigate the ability of serum cartilage oligomeric matrix protein (COMP) to detect early osteoarthritis (OA) (International Cartilage Research Society [ICRS] grade 1 or 2 cartilage lesions) in patients with anterior cruciate ligament (ACL)-deficient patients. METHODS Patients with an ACL injury of Kellgren-Lawrence grade 0 or 1 were enrolled. Serum samples for COMP measurement were obtained before surgery. The cartilage surfaces of 6 compartments were classified using the ICRS grading system. The patients were divided into groups with and without early OA according to the cartilage findings and diagnostic criteria for early OA. RESULTS In total, 98 patients (mean age 23.7 years; range 12 to 49) were included, with 30 patients (30.6%) in the early OA group and 68 (69.4%) in the no early OA group. The 2 groups significantly differed in age, body mass index, preoperative Tegner activity scale, and serum COMP level. The cutoff value of serum COMP for the presence of early OA arthroscopic cartilage lesions was 152.0 ng/mL. Multiple logistic regression analysis revealed age (odds ratio 1.09; 95% confidence interval [CI] 1.02 to 1.16; P = .01) and serum COMP (odds ratio 1.02; 95% CI 1.01 to 1.04; P < .001) to be independent factors for the presence of early OA arthroscopic cartilage findings. CONCLUSIONS The incidence of early OA arthroscopic cartilage findings was ∼30% in patients with ACL deficiency, and serum COMP levels were significantly higher in the early OA group than in the no early OA group. The optimum cutoff value for serum COMP was 152 ng/mL. Serum COMP can be used to detect early cartilage change in patients with ACL deficiency. LEVEL OF EVIDENCE Ⅲ, retrospective comparative study.
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Affiliation(s)
- Yohei Nishida
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yusuke Hashimoto
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
| | - Kumi Orita
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Kazuya Nishino
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Takuya Kinoshita
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
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COMP and TSP-4: Functional Roles in Articular Cartilage and Relevance in Osteoarthritis. Int J Mol Sci 2021; 22:ijms22052242. [PMID: 33668140 PMCID: PMC7956748 DOI: 10.3390/ijms22052242] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/16/2021] [Accepted: 02/20/2021] [Indexed: 12/18/2022] Open
Abstract
Osteoarthritis (OA) is a slow-progressing joint disease, leading to the degradation and remodeling of the cartilage extracellular matrix (ECM). The usually quiescent chondrocytes become reactivated and accumulate in cell clusters, become hypertrophic, and intensively produce not only degrading enzymes, but also ECM proteins, like the cartilage oligomeric matrix protein (COMP) and thrombospondin-4 (TSP-4). To date, the functional roles of these newly synthesized proteins in articular cartilage are still elusive. Therefore, we analyzed the involvement of both proteins in OA specific processes in in vitro studies, using porcine chondrocytes, isolated from femoral condyles. The effect of COMP and TSP-4 on chondrocyte migration was investigated in transwell assays and their potential to modulate the chondrocyte phenotype, protein synthesis and matrix formation by immunofluorescence staining and immunoblot. Our results demonstrate that COMP could attract chondrocytes and may contribute to a repopulation of damaged cartilage areas, while TSP-4 did not affect this process. In contrast, both proteins similarly promoted the synthesis and matrix formation of collagen II, IX, XII and proteoglycans, but inhibited that of collagen I and X, resulting in a stabilized chondrocyte phenotype. These data suggest that COMP and TSP-4 activate mechanisms to protect and repair the ECM in articular cartilage.
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Serum cartilage oligomeric matrix protein as a biomarker for predicting development and progression of knee osteoarthritis. INTERNATIONAL ORTHOPAEDICS 2021; 45:551-557. [PMID: 33438071 DOI: 10.1007/s00264-021-04943-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 01/07/2021] [Indexed: 10/22/2022]
Abstract
PURPOSE Current modes of diagnosing and monitoring knee osteoarthritis (OA) are based on weight bearing radiographs usually made by the time joint destruction is already established. Cartilage oligomeric matrix protein (COMP) is a breakdown product of cartilage and its serum levels may be a potential indicator of early destruction in OA. This study aimed to ascertain the usefulness of serum COMP (sCOMP) in diagnosis and monitoring of knee joint OA within the study environment. METHODS Ninety consenting adults were recruited. In the control group, 45 subjects having a diagnosis of knee OA had clinical and radiological grading done and blood samples taken for assay of sCOMP using the sandwich ELISA method. Forty-five volunteers with no features of osteoarthritis also had serum collected for sCOMP assay. Values obtained were then cross referenced with demographic indices, clinical and radiological severity grade to assess for relationships. RESULTS Serum COMP was found to be significantly elevated (p = 0.0001) in the study group. The mean values and standard deviation of sCOMP were 3400 ± 1042.9 ng/ml and 2222 ± 605.6 ng/ml for the study and control groups, respectively. Higher values of sCOMP were found to be associated with higher clinical and radiological grades of OA. CONCLUSION The study demonstrates that sCOMP is significantly higher in patients with knee OA than in those without the disease. Values of sCOMP were also found to increase with severity of knee OA, indicating the possibility of its use as a marker of diagnosis and severity.
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韩 玮, 罗 海, 郭 传, 宁 琦, 孟 娟. [Expression of cartilage oligomeric matrix protein in the synovial chondromatosis of the temporomandibular joint]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2020; 53:34-39. [PMID: 33550333 PMCID: PMC7867961 DOI: 10.19723/j.issn.1671-167x.2021.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To detect the expression of cartilage oligomeric matrix protein (COMP) in the synovial chondromatosis of the temporomandibular joint (TMJSC), and to discuss the possible interactions between COMP, transforming growth factor (TGF)-β3, TGF-β1 and bone morphogenetic protein-2 (BMP-2) in the development of this neoplastic disease. METHODS Patients in Peking University School and Hospital of Stomatology from January 2011 to February 2020 were selected, who had complete medical records, TMJSC was verified histologically after operation. The expressions of COMP, TGF-β3, TGF-β1 and BMP-2 in the TMJSC of the temporomandibular joint were detected by immunohistochemistry and quantitative real-time PCR (RT-PCR) at the protein level and mRNA level respectively, compared with the normal synovial tissue of temporomandibular joint. The histological morphology, protein expression and distribution of TMJSC tissues were observed microscopically, and the positive staining proteins were counted and scored. SPSS 22.0 statistical software was used to analyze the expression differences between the related proteins in TMJSC tissue and the normal synovial tissue of temporomandibular joint and to compare their differences. P < 0.05 indicated that the difference was statistically significant. RESULTS Immunohistochemical results showed that the positive expression of COMP in TMJSC tissues was mostly found in synovial tissues and chondrocytes adjacent to synovial tissues, and the difference was statistically significant, compared with the normal temporomandibular joint synovial tissues. The positive expression of COMP was significantly different between recurrent TMJSC and non-recurrent ones. The positive expressions of TGF-β3, TGF-β1 and BMP-2 were higher than the normal synovial tissue, and were also mostly found in the synovial cells and adjacent chondrocytes, which was further confirmed by Western blot. According to the RT-PCR results, the expressions of COMP, TGF-β3, TGF-β1 and BMP-2 in TMJSC were higher than those in the normal synovial tissue. CONCLUSION The expression of COMP in TMJSC of temporomandibular joint increased significantly, compared with the normal synovial tissue. There may be interactions between COMP and cytokines related to the proliferation and differentiation, like TGF-β3, TGF-β1 and BMP-2, which may play a potential role in the pathogenesis of TMJSC.
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Affiliation(s)
- 玮华 韩
- 北京大学口腔医学院·口腔医院,颌面外科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 海燕 罗
- 北京大学口腔医学院·口腔医院,病理科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 传瑸 郭
- 北京大学口腔医学院·口腔医院,颌面外科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 琦 宁
- 北京大学口腔医学院·口腔医院,颌面外科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 娟红 孟
- 北京大学口腔医学院·口腔医院,颌面外科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Simonds MM, Schlefman AR, McCahan SM, Sullivan KE, Rose CD, Brescia AC. Juvenile idiopathic arthritis fibroblast-like synoviocytes influence chondrocytes to alter BMP antagonist expression demonstrating an interaction between the two prominent cell types involved in endochondral bone formation. Pediatr Rheumatol Online J 2020; 18:89. [PMID: 33198759 PMCID: PMC7670793 DOI: 10.1186/s12969-020-00483-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 11/01/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND To examine critical interactions between juvenile idiopathic arthritis synovial fibroblasts (JFLS) and chondrocytes (Ch), and their role in bony overgrowth seen in patients with juvenile idiopathic arthritis (JIA). METHODS Control (CFLS) and JFLS were cultured in synoviocyte media containing recombinant BMP4. Ch were cultured in either CFLS or JFLS conditioned-media without stimulation. Media supernatants were analyzed by ELISA. RNA from conditioned media experiment was analyzed by ClariomS microarray. RESULTS As expected, genes expressed in untreated JFLS and CFLS cultured in synoviocyte media were similar to each other and this expression differed from untreated Ch cultured in chondrocyte media. JFLS favor BMP ligand gene expression while downregulating TGFβ receptors' expression. Noggin and chordin, antagonists with high affinity for BMP4, are JFLS- but not Ch-preferred regulators of BMP signaling. Compared to Ch, JFLS overexpress collagen X (COLX), a marker of chondrocyte hypertrophy. Exogenous BMP4 causes JFLS to significantly decrease expression of noggin and collagen II (COL2), a marker of chondrocyte proliferation, and causes overexpression of COLX and alkaline-phosphatase (ALP). Chondrocytes cultured in JFLS-conditioned media (Ch-JFLS) express BMP genes and favor chordin protein expression over other antagonists. Ch-JFLS have significantly increased expression of COL2 and significantly decreased expression of COLX. CONCLUSIONS These data suggest JFLS, in the presence of BMP4, undergo hypertrophy and that JFLS-conditioned media influence chondrocytes to become highly proliferative. To the authors' knowledge, no prior study has shown that JFLS and chondrocytes play a direct role in the bony overgrowth in joints of patients with JIA and that BMPs or regulation of these growth factors influence the interaction between two prominent synovial cell types.
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Affiliation(s)
- Megan M. Simonds
- grid.239281.30000 0004 0458 9676Nemours Biomedical Research, Nemours A.I. duPont Hospital for Children, 1701 Rockland Rd, Wilmington, DE 19803 USA
| | - Amanda R. Schlefman
- grid.239281.30000 0004 0458 9676Rheumatology, Nemours A.I. duPont Hospital for Children, Wilmington, DE USA ,grid.413611.00000 0004 0467 2330Rheumatology, Johns Hopkins All Childrens, St. Petersburg, FL USA
| | - Suzanne M. McCahan
- grid.239281.30000 0004 0458 9676Rheumatology, Nemours A.I. duPont Hospital for Children, Wilmington, DE USA
| | - Kathleen E. Sullivan
- grid.239552.a0000 0001 0680 8770Allergy and Immunology, Children’s Hospital of Philadelphia, Philadelphia, PA USA
| | - Carlos D. Rose
- grid.239281.30000 0004 0458 9676Rheumatology, Nemours A.I. duPont Hospital for Children, Wilmington, DE USA
| | - AnneMarie C. Brescia
- grid.239281.30000 0004 0458 9676Rheumatology, Nemours A.I. duPont Hospital for Children, Wilmington, DE USA
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Ganglioside GM3 Up-Regulate Chondrogenic Differentiation by Transform Growth Factor Receptors. Int J Mol Sci 2020; 21:ijms21061967. [PMID: 32183071 PMCID: PMC7139639 DOI: 10.3390/ijms21061967] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 03/12/2020] [Indexed: 12/21/2022] Open
Abstract
Mesenchymal stem cells, also known as multipotent stromal progenitor cells, can differentiate into cells of mesodermal lineage. Gangliosides are sialic acid-conjugated glycosphingolipids that are believed to regulate cell differentiation and several signaling molecules. These molecules are localized in glycosphingolipid-enriched microdomains on the cell surface and are regulated by glycosphingolipid composition. Transforming growth factor-beta (TGF-β) signaling plays a critical role in chondrogenic differentiation. However, the role of gangliosides in chondrogenesis is not understood. In this study, the relationship between the ganglioside GM3 and TGF-β activation, during chondrogenic differentiation, was investigated using an aggregate culture of human synovial membrane-derived mesenchymal stem cells. We showed that the gangliosides GM3 and GD3 were expressed after the chondrogenic differentiation of hSMSC aggregates. To test whether GM3 affected the chondrogenic differentiation of hSMSC aggregates, we used GM3 treatment during chondrogenic differentiation. The results showed that the group treated with 5 μM GM3 had higher expression of chondrogenic specific markers, increased toluidine blue, and safranin O staining, and increased accumulation of glycosaminoglycans compared with the untreated group. Furthermore, GM3 treatment enhanced TGF-β signaling via SMAD 2/3 during the chondrogenic differentiation of hSMSC aggregates. Taken together, our results suggested that GM3 may be useful in developing therapeutic agents for cell-based articular cartilage regeneration in articular cartilage disease.
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Yang X, Ruan G, Xu J, Zheng S, Wang K, Ding C. Associations between suprapatellar pouch effusion-synovitis, serum cartilage oligomeric matrix protein, high sensitivity C-reaction protein, knee symptom, and joint structural changes in patients with knee osteoarthritis. Clin Rheumatol 2020; 39:1663-1670. [PMID: 31897961 DOI: 10.1007/s10067-019-04905-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 11/30/2019] [Accepted: 12/19/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To investigate the cross-sectional associations between suprapatellar pouch effusion-synovitis and serum levels of cartilage oligomeric matrix protein (COMP), high sensitivity C-reaction protein (hs-CRP), knee symptom, and structural changes in patients with symptomatic knee osteoarthritis (OA). METHOD A total of 173 subjects were included. The osteophytes, joint space narrowing (JSN), and radiographic severity of OA were determined using X-ray. Cartilage defects, bone marrow lesions (BMLs), and suprapatellar pouch effusion-synovitis were assessed using magnetic resonance imaging. Serum levels of COMP and hs-CRP were measured by enzyme-linked immunosorbent assay. The knee joint symptom was self-reported using visual analogue scale. RESULTS In this OA cohort, after adjustment for age, sex, and BMI, the presence of pathological effusion-synovitis was associated with serum levels of COMP (β: 30.98, P = 0.018), and suprapatellar pouch effusion-synovitis maximum areas were associated with serum hs-CRP levels. Both suprapatellar pouch effusion-synovitis maximum area and grade were associated with osteophytes and Kellgren-Lawrence scores (ORs: 1.29-1.54, all P < 0.05). In patients with high tertile of hs-CRP, both suprapatellar pouch effusion-synovitis maximum area and grade were associated with cartilage defects at lateral and medial tibiofemoral sites (ORs: 3.01-8.41, all P < 0.05) after adjustment for covariates. In female patients, the significant associations were present between suprapatellar pouch effusion-synovitis and medial tibiofemoral BMLs (ORs: 1.43-1.53, all P < 0.05) after adjustment for covariates. CONCLUSIONS Suprapatellar pouch effusion-synovitis was associated with serum levels of COMP as well as hs-CRP and knee structural abnormalities in patients with knee OA. These suggested that effusion-synovitis may play a role in knee OA.Key Points• Suprapatellar pouch effusion-synovitis is associated with serum levels of COMP in patients with knee OA.• Suprapatellar pouch effusion-synovitis is associated with cartilage defects in knee OA patients with high systemic inflammation.
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Affiliation(s)
- Xueqing Yang
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Guangfeng Ruan
- Department of Rheumatology and Immunology, Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Menzies Institute for Medical Research, University of Tasmania, Private Bag 23, Hobart, Tasmania, 7000, Australia
| | - Jianhua Xu
- Department of Rheumatology and Immunology, Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Shuang Zheng
- Department of Rheumatology and Immunology, Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Menzies Institute for Medical Research, University of Tasmania, Private Bag 23, Hobart, Tasmania, 7000, Australia
| | - Kang Wang
- Department of Rheumatology and Immunology, Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Menzies Institute for Medical Research, University of Tasmania, Private Bag 23, Hobart, Tasmania, 7000, Australia
| | - Changhai Ding
- Department of Rheumatology and Immunology, Arthritis Research Institute, the First Affiliated Hospital of Anhui Medical University, Hefei, China. .,Menzies Institute for Medical Research, University of Tasmania, Private Bag 23, Hobart, Tasmania, 7000, Australia. .,Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
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12
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Thielen NGM, van der Kraan PM, van Caam APM. TGFβ/BMP Signaling Pathway in Cartilage Homeostasis. Cells 2019; 8:cells8090969. [PMID: 31450621 PMCID: PMC6769927 DOI: 10.3390/cells8090969] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/09/2019] [Accepted: 08/19/2019] [Indexed: 01/15/2023] Open
Abstract
Cartilage homeostasis is governed by articular chondrocytes via their ability to modulate extracellular matrix production and degradation. In turn, chondrocyte activity is regulated by growth factors such as those of the transforming growth factor β (TGFβ) family. Members of this family include the TGFβs, bone morphogenetic proteins (BMPs), and growth and differentiation factors (GDFs). Signaling by this protein family uniquely activates SMAD-dependent signaling and transcription but also activates SMAD-independent signaling via MAPKs such as ERK and TAK1. This review will address the pivotal role of the TGFβ family in cartilage biology by listing several TGFβ family members and describing their signaling and importance for cartilage maintenance. In addition, it is discussed how (pathological) processes such as aging, mechanical stress, and inflammation contribute to altered TGFβ family signaling, leading to disturbed cartilage metabolism and disease.
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Affiliation(s)
- Nathalie G M Thielen
- Experimental Rheumatology, Radboud University Medical Center, Geert Grooteplein 28, 6525 GA Nijmegen, The Netherlands
| | - Peter M van der Kraan
- Experimental Rheumatology, Radboud University Medical Center, Geert Grooteplein 28, 6525 GA Nijmegen, The Netherlands
| | - Arjan P M van Caam
- Experimental Rheumatology, Radboud University Medical Center, Geert Grooteplein 28, 6525 GA Nijmegen, The Netherlands.
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13
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Donahue RP, Hu JC, Athanasiou KA. Remaining Hurdles for Tissue-Engineering the Temporomandibular Joint Disc. Trends Mol Med 2019; 25:241-256. [PMID: 30678888 PMCID: PMC6436948 DOI: 10.1016/j.molmed.2018.12.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/18/2018] [Accepted: 12/18/2018] [Indexed: 12/29/2022]
Abstract
The temporomandibular joint (TMJ) disc, a fibrocartilaginous structure between the mandible and temporal bone, is implicated in temporomandibular disorders (TMDs). TMDs symptomatically affect approximately 25% of the population, of which 70% have internal derangement of the disc. Treatments lack efficiency, motivating novel therapies, including tissue-engineering toward TMJ disc regeneration. Recent developments in scaffold-based or scaffold-free approaches, cell sources, and biochemical and mechanical stimulation have resulted in constructs exhibiting native tissue mechanics. Safety and efficacy of tissue-engineered implants have shown promising results in orthotopic animal studies. However, many hurdles need to be overcome in tissue-engineering approaches, and clinical and regulatory pathways. Future studies present an opportunity for clinicians and researchers to work together toward safe and effective clinical trials.
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Affiliation(s)
- Ryan P Donahue
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
| | - Jerry C Hu
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA
| | - Kyriacos A Athanasiou
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, USA.
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14
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Chinzei N, Rai MF, Hashimoto S, Schmidt EJ, Takebe K, Cheverud JM, Sandell LJ. Evidence for Genetic Contribution to Variation in Posttraumatic Osteoarthritis in Mice. Arthritis Rheumatol 2019; 71:370-381. [PMID: 30225954 DOI: 10.1002/art.40730] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 09/13/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Recombinant inbred mouse strains generated from an LG/J and SM/J intercross offer a unique resource to study complex genetic traits such as osteoarthritis (OA). We undertook this study to determine the susceptibility of 14 strains to various phenotypes characteristic of posttraumatic OA. We hypothesized that phenotypic variability is associated with genetic variability. METHODS Ten-week-old male mice underwent surgical destabilization of the medial meniscus (DMM) to induce posttraumatic OA. Mice were killed 8 weeks after surgery, and knee joints were processed for histology to score cartilage degeneration and synovitis. Micro-computed tomography was used to analyze trabecular bone parameters including subchondral bone plate thickness and synovial ectopic calcifications. Gene expression in the knees was assessed using a QuantiGene Plex assay. RESULTS Broad-sense heritability ranged from 0.18 to 0.58, which suggested that the responses to surgery were moderately heritable. The LGXSM-33, LGXSM-5, LGXSM-46, and SM/J strains were highly susceptible to OA, while the LGXSM-131b, LGXSM-163, LGXSM-35, LGXSM-128a, LGXSM-6, and LG/J strains were relatively OA resistant. This study was the first to accomplish measurement of genetic correlations of phenotypes that are characteristic of posttraumatic OA. Cartilage degeneration was significantly positively associated with synovitis (r = 0.83-0.92), and subchondral bone plate thickness was negatively correlated with ectopic calcifications (r = -0.59). Moreover, we showed that 40 of the 78 genes tested were significantly correlated with various OA phenotypes. However, unlike the OA phenotypes, there was no evidence for genetic variation in differences in gene expression levels between DMM-operated and sham-operated knees. CONCLUSION For these mouse strains, various characteristics of posttraumatic OA varied with genetic composition, which demonstrated a genetic basis for susceptibility to posttraumatic OA. The heritability of posttraumatic OA was established. Phenotypes exhibited various degrees of correlations; cartilage degeneration was positively correlated with synovitis, but not with the formation of ectopic calcifications. Further investigation of the genome regions that contain genes implicated in OA, as well as further investigation of gene expression data, will be useful for studying mechanisms of OA and identifying therapeutic targets.
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Affiliation(s)
| | | | | | | | - Ken Takebe
- Konan Kakogawa Hospital, Kakogawa, Japan
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15
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Albro MB, Nims RJ, Durney KM, Cigan AD, Shim JJ, Vunjak-Novakovic G, Hung CT, Ateshian GA. Heterogeneous engineered cartilage growth results from gradients of media-supplemented active TGF-β and is ameliorated by the alternative supplementation of latent TGF-β. Biomaterials 2015; 77:173-185. [PMID: 26599624 DOI: 10.1016/j.biomaterials.2015.10.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/05/2015] [Accepted: 10/06/2015] [Indexed: 02/07/2023]
Abstract
Transforming growth factor beta (TGF-β) has become one of the most widely utilized mediators of engineered cartilage growth. It is typically exogenously supplemented in the culture medium in its active form, with the expectation that it will readily transport into tissue constructs through passive diffusion and influence cellular biosynthesis uniformly. The results of this investigation advance three novel concepts regarding the role of TGF-β in cartilage tissue engineering that have important implications for tissue development. First, through the experimental and computational analysis of TGF-β concentration distributions, we demonstrate that, contrary to conventional expectations, media-supplemented exogenous active TGF-β exhibits a pronounced concentration gradient in tissue constructs, resulting from a combination of high-affinity binding interactions and a high cellular internalization rate. These gradients are sustained throughout the entire culture duration, leading to highly heterogeneous tissue growth; biochemical and histological measurements support that while biochemical content is enhanced up to 4-fold at the construct periphery, enhancements are entirely absent beyond 1 mm from the construct surface. Second, construct-encapsulated chondrocytes continuously secrete large amounts of endogenous TGF-β in its latent form, a portion of which undergoes cell-mediated activation and enhances biosynthesis uniformly throughout the tissue. Finally, motivated by these prior insights, we demonstrate that the alternative supplementation of additional exogenous latent TGF-β enhances biosynthesis uniformly throughout tissue constructs, leading to enhanced but homogeneous tissue growth. This novel demonstration suggests that latent TGF-β supplementation may be utilized as an important tool for the translational engineering of large cartilage constructs that will be required to repair the large osteoarthritic defects observed clinically.
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Affiliation(s)
- Michael B Albro
- Department of Materials, Imperial College London, London, UK
| | - Robert J Nims
- Department of Biomedical Engineering, Columbia University, New York, NY 10027
| | - Krista M Durney
- Department of Biomedical Engineering, Columbia University, New York, NY 10027
| | - Alexander D Cigan
- Department of Biomedical Engineering, Columbia University, New York, NY 10027
| | - Jay J Shim
- Department of Mechanical Engineering, Columbia University, New York, NY 10027
| | | | - Clark T Hung
- Department of Biomedical Engineering, Columbia University, New York, NY 10027
| | - Gerard A Ateshian
- Department of Biomedical Engineering, Columbia University, New York, NY 10027.,Department of Mechanical Engineering, Columbia University, New York, NY 10027
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16
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Van Spil WE, Nair SC, Kinds MB, Emans PJ, Hilberdink WKHA, Welsing PMJ, Lafeber FPJG. Systemic biochemical markers of joint metabolism and inflammation in relation to radiographic parameters and pain of the knee: data from CHECK, a cohort of early-osteoarthritis subjects. Osteoarthritis Cartilage 2015; 23:48-56. [PMID: 25205017 DOI: 10.1016/j.joca.2014.09.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 08/07/2014] [Accepted: 09/01/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate associations of biochemical markers of joint metabolism and inflammation with minimum joint space width (JSW) and osteophyte area (OP area) of knees showing no or doubtful radiographic osteoarthritis (OA) and to investigate whether these differed between painful and non-painful knees. DESIGN Serum (s-) and urinary (u-) levels of the cartilage markers uCTX-II, sCOMP, sPIIANP, and sCS846, bone markers uCTX-I, uNTX-I, sPINP, and sOC, synovial markers sPIIINP and sHA, and inflammation markers hsCRP and erythrocyte sedimentation rate (ESR) were assessed in subjects from CHECK (Cohort Hip and Cohort Knee) demonstrating Kellgren and Lawrence grade ≤1 OA on knee radiographs. Minimum JSW and OP area of these knees were quantified in detail using Knee Images Digital Analysis (KIDA). RESULTS uCTX-II levels showed negative associations with minimum JSW and positive associations with OP area. sCOMP and sHA levels showed positive associations with OP area, but not with minimum JSW. uCTX-I and uNTX-I levels showed negative associations with minimum JSW and OP area. Associations of biochemical marker levels with minimum JSW were similar between painful and non-painful knees, associations of uCTX-II, sCOMP, and sHA with OP area were only observed in painful knees. CONCLUSIONS In these subjects with no or doubtful radiographic knee OA, uCTX-II might not only reflect articular cartilage degradation but also endochondral ossification in osteophytes. Furthermore, sCOMP and sHA relate to osteophytes, maybe because synovitis drives osteophyte development. High bone turnover may aggravate articular cartilage loss. Metabolic activity in osteophytes and synovial tissue, but not in articular cartilage may be related to knee pain.
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Affiliation(s)
- W E Van Spil
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
| | - S C Nair
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
| | - M B Kinds
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
| | - P J Emans
- Department of Orthopaedic Surgery, Maastricht University Medical Center, PO Box 5800, 6202 AZ, Maastricht, The Netherlands.
| | - W K H A Hilberdink
- Allied Health Care Center for Rheumatology and Rehabilitation Groningen, Helpermolenstraat 25, 9721 BT, Groningen, The Netherlands.
| | - P M J Welsing
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
| | - F P J G Lafeber
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
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17
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Valverde-Franco G, Hum D, Matsuo K, Lussier B, Pelletier JP, Fahmi H, Kapoor M, Martel-Pelletier J. The in vivo effect of prophylactic subchondral bone protection of osteoarthritic synovial membrane in bone-specific Ephb4-overexpressing mice. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 185:335-46. [PMID: 25453723 DOI: 10.1016/j.ajpath.2014.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 10/16/2014] [Accepted: 10/20/2014] [Indexed: 01/17/2023]
Abstract
Osteoarthritis (OA) is characterized by progressive joint destruction, including synovial membrane alteration. EphB4 and its ligand ephrin-B2 were found in vitro to positively affect OA subchondral bone and cartilage. In vivo in an experimental mouse model overexpressing bone-specific Ephb4 (TgEphB4), a protective effect was found on both the subchondral bone and cartilage during OA. We investigated in the TgEphB4 mouse model the in vivo effect on synovial membrane during OA. Knee OA was surgically induced by destabilization of the medial meniscus (DMM). Synovial membrane was evaluated using histology, histomorphometry, IHC, and real-time PCR. Compared to DMM-wild-type (WT) mice, DMM-TgEphB4 mice had a significant decrease in synovial membrane thickness, vascular endothelial growth factor, and the profibrotic markers fibrin, type 1 procollagen, type 3 collagen, connective tissue growth factor, smooth muscle actin-α, cartilage oligomeric matrix protein, and procollagen-lysine, and 2-oxoglutarate 5-dioxygenase 2. Moreover, factors known to modulate transforming growth factor-β signaling, transforming growth factor receptor 1/ALK1, phosphorylated Smad-1, and heat shock protein 90β were significantly decreased in DMM-TgEphB4 compared with DMM-WT mice. Ephb4 overexpression also exhibited a protective effect on synovial membrane thickness of aged (24-month-old) mice. Overexpression of bone-specific Ephb4 clearly demonstrated prevention of the development and/or progression of fibrosis in OA synovial membrane, reinforcing the hypothesis that protecting the subchondral bone prophylactically and during OA reduces the pathologic changes in other articular tissues.
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Affiliation(s)
- Gladys Valverde-Franco
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - David Hum
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Koichi Matsuo
- Laboratory of Cell and Tissue Biology, School of Medicine, Keio University, Tokyo, Japan
| | - Bertrand Lussier
- Faculty of Veterinary Medicine, Clinical Science, University of Montreal, Saint-Hyacinthe, Quebec, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Mohit Kapoor
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada.
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18
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Wu P, Holguin N, Silva MJ, Fu M, Liao W, Sandell LJ. Early response of mouse joint tissue to noninvasive knee injury suggests treatment targets. Arthritis Rheumatol 2014; 66:1256-65. [PMID: 24470303 DOI: 10.1002/art.38375] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 01/16/2014] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Joint trauma can lead to a spectrum of acute lesions, including cartilage degradation, ligament or meniscus tears, and synovitis, all potentially associated with osteoarthritis (OA). This study was undertaken to generate and validate a murine model of knee joint trauma following noninvasive controlled injurious compression in vivo. METHODS The right knees of 8-week-old mice were placed in a hyperflexed position and subjected to compressive joint loading at 1 of 3 peak forces (3N, 6N, or 9N) for 60 cycles in a single loading period and harvested on days 5, 9, and 14 after loading (n = 3-5 for each time point and for each loading). The left knees were not loaded and were used as the contralateral control. Histologic, immunohistochemical, and enzyme-linked immunosorbent assay analyses were performed to evaluate acute pathologic features in chondrocyte viability, cartilage matrix metabolism, synovial reaction, and serum cartilage oligomeric matrix protein (COMP) levels. RESULTS Acute joint pathology was associated with increased injurious loads. All loading regimens induced chondrocyte apoptosis, cartilage matrix degradation, disruption of cartilage collagen fibril arrangement, and increased levels of serum COMP. We also observed that 6N loading induced mild synovitis by day 5, whereas at 9N, with tearing of the anterior cruciate ligament, severe posttraumatic synovitis and ectopic cartilage formation were observed. CONCLUSION We have established a murine model of knee joint trauma with different degrees of overloading in vivo. Our results suggest that immediate therapies particularly targeted to apoptosis and synovial cell proliferation could affect the acute posttraumatic reaction to potentially limit chronic consequences and OA.
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Affiliation(s)
- P Wu
- Washington University School of Medicine, St. Louis, Missouri; First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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19
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The pilot study of fibrin with temporomandibular joint derived synovial stem cells in repairing TMJ disc perforation. BIOMED RESEARCH INTERNATIONAL 2014; 2014:454021. [PMID: 24822210 PMCID: PMC4009306 DOI: 10.1155/2014/454021] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 03/08/2014] [Accepted: 03/11/2014] [Indexed: 11/23/2022]
Abstract
TMJ disc related diseases are difficult to be cured due to the poor repair ability of the disc. TMJ-SDSCs were ideal cell sources for cartilage tissue engineering which have been widely used in hyaline cartilage regeneration. Fibrin gel has been demonstrated as a potential scaffold for neocartilage formation. The aim of this study was to repair the TMJ disc perforation using fibrin/chitosan hybrid scaffold combined with TMJ-SDSCs. Rat TMJ-SDSCs were cultured on hybrid scaffold or pure chitosan scaffolds. The cell seeding efficiency, distribution, proliferation, and chondrogenic differentiation capacity were investigated. To evaluate the in vivo repair ability of cell/scaffold construct, rat TMJ disc explants were punched with a defect to mimic TMJ disc perforation. Cell seeded scaffolds were inserted into the defect of TMJ disc explants and then were implanted subcutaneously in nude mice for 4 weeks. Results demonstrated that fibrin may improve cell seeding, proliferation, and chondrogenic induction in vitro. The in vivo experiments showed more cartilage ECM deposition in fibrin/chitosan scaffold, which suggested an enhanced reparative ability. This pilot study demonstrated that the regenerative ability of TMJ-SDSCs seeded in fibrin/chitosan scaffold could be applied for repairing TMJ disc perforation.
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20
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Nims RJ, Cigan AD, Albro MB, Hung CT, Ateshian GA. Synthesis rates and binding kinetics of matrix products in engineered cartilage constructs using chondrocyte-seeded agarose gels. J Biomech 2013; 47:2165-72. [PMID: 24284199 DOI: 10.1016/j.jbiomech.2013.10.044] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/23/2013] [Accepted: 10/26/2013] [Indexed: 11/29/2022]
Abstract
Large-sized cartilage constructs suffer from inhomogeneous extracellular matrix deposition due to insufficient nutrient availability. Computational models of nutrient consumption and tissue growth can be utilized as an efficient alternative to experimental trials to optimize the culture of large constructs; models require system-specific growth and consumption parameters. To inform models of the [bovine chondrocyte]-[agarose gel] system, total synthesis rate (matrix accumulation rate+matrix release rate) and matrix retention fractions of glycosaminoglycans (GAG), collagen, and cartilage oligomeric matrix protein (COMP) were measured either in the presence (continuous or transient) or absence of TGF-β3 supplementation. TGF-β3's influences on pyridinoline content and mechanical properties were also measured. Reversible binding kinetic parameters were characterized using computational models. Based on our recent nutrient supplementation work, we measured glucose consumption and critical glucose concentration for tissue growth to computationally simulate the culture of a human patella-sized tissue construct, reproducing the experiment of Hung et al. (2003). Transient TGF-β3 produced the highest GAG synthesis rate, highest GAG retention ratio, and the highest binding affinity; collagen synthesis was elevated in TGF-β3 supplementation groups over control, with the highest binding affinity observed in the transient supplementation group; both COMP synthesis and retention were lower than those for GAG and collagen. These results informed the modeling of GAG deposition within a large patella construct; this computational example was similar to the previous experimental results without further adjustments to modeling parameters. These results suggest that these nutrient consumption and matrix synthesis models are an attractive alternative for optimizing the culture of large-sized constructs.
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Affiliation(s)
- Robert J Nims
- Department of Biomedical Engineering, Columbia University, 1210 Amsterdam Avenue, MC 8904, 351 Engineering Terrace, New York, NY 10027, USA
| | - Alexander D Cigan
- Department of Biomedical Engineering, Columbia University, 1210 Amsterdam Avenue, MC 8904, 351 Engineering Terrace, New York, NY 10027, USA
| | - Michael B Albro
- Department of Mechanical Engineering, Columbia University, 500 West 120th Street, MC 4703, 220 Mudd, New York, NY 10027, USA
| | - Clark T Hung
- Department of Biomedical Engineering, Columbia University, 1210 Amsterdam Avenue, MC 8904, 351 Engineering Terrace, New York, NY 10027, USA
| | - Gerard A Ateshian
- Department of Biomedical Engineering, Columbia University, 1210 Amsterdam Avenue, MC 8904, 351 Engineering Terrace, New York, NY 10027, USA; Department of Mechanical Engineering, Columbia University, 500 West 120th Street, MC 4703, 220 Mudd, New York, NY 10027, USA.
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21
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Albro MB, Nims RJ, Cigan AD, Yeroushalmi KJ, Alliston T, Hung CT, Ateshian GA. Accumulation of exogenous activated TGF-β in the superficial zone of articular cartilage. Biophys J 2013; 104:1794-804. [PMID: 23601326 DOI: 10.1016/j.bpj.2013.02.052] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 01/07/2013] [Accepted: 02/19/2013] [Indexed: 11/28/2022] Open
Abstract
It was recently demonstrated that mechanical shearing of synovial fluid (SF), induced during joint motion, rapidly activates latent transforming growth factor β (TGF-β). This discovery raised the possibility of a physiological process consisting of latent TGF-β supply to SF, activation via shearing, and transport of TGF-β into the cartilage matrix. Therefore, the two primary objectives of this investigation were to characterize the secretion rate of latent TGF-β into SF, and the transport of active TGF-β across the articular surface and into the cartilage layer. Experiments on tissue explants demonstrate that high levels of latent TGF-β1 are secreted from both the synovium and all three articular cartilage zones (superficial, middle, and deep), suggesting that these tissues are capable of continuously replenishing latent TGF-β to SF. Furthermore, upon exposure of cartilage to active TGF-β1, the peptide accumulates in the superficial zone (SZ) due to the presence of an overwhelming concentration of nonspecific TGF-β binding sites in the extracellular matrix. Although this response leads to high levels of active TGF-β in the SZ, the active peptide is unable to penetrate deeper into the middle and deep zones of cartilage. These results provide strong evidence for a sequential physiologic mechanism through which SZ chondrocytes gain access to active TGF-β: the synovium and articular cartilage secrete latent TGF-β into the SF and, upon activation, TGF-β transports back into the cartilage layer, binding exclusively to the SZ.
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Affiliation(s)
- Michael B Albro
- Department of Mechanical Engineering, Columbia University, New York, New York, USA.
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22
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Blumenfeld O, Williams FMK, Hart DJ, Spector TD, Arden N, Livshits G. Association between cartilage and bone biomarkers and incidence of radiographic knee osteoarthritis (RKOA) in UK females: a prospective study. Osteoarthritis Cartilage 2013; 21:923-9. [PMID: 23598177 DOI: 10.1016/j.joca.2013.04.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 03/20/2013] [Accepted: 04/09/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE There is a need to find biochemical markers that would identify people with increased risk of developing radiographic knee osteoarthritis (RKOA). The aim of this study was to evaluate the ability of cartilage and bone biomarkers (cartilage oligomeric matrix protein (COMP), aggrecan, cellular inhibitor of apoptosis protein (cIAP), N-telopeptide-to-helix (NTx)) to predict RKOA incidence in a 10-year follow-up of UK females from the Chingford community study. METHOD Joint space narrowing (JSN), osteophytes (OSP) and Kellgren-Lawrence (K/L) grades were scored from radiographs of both knees at study baseline and 10 years later in 1,003 women aged 45-64. Circulating levels of biomarkers and demographic variables were measured at baseline. Statistical association analysis was conducted between the potential predictor factors measured at baseline and documentation of RKOA at 10-year follow-up. RESULTS Age and body mass index (BMI), were significant predictors of incidence of RKOA as assessed by K/L and OSP. Considering biomarkers, independent significant association was found between COMP circulating levels and K/L scores (Odd Ratio (OR) = 2.87, 95% Confidence Interval (CI) = 1.19-6.89, P = 0.018). Significant negative association was detected between aggrecan plasma concentrations and JSN, with OR = 0.37 (95% CI 0.15-0.89), P = 0.026. CONCLUSIONS Aggrecan and COMP circulating levels contribute to identification of phenotype-specific RKOA incidence. These data suggest potentially protective role of aggrecan in cartilage loss, as measured by JSN. High COMP levels are risk factors for development of RKOA, as assessed by K/L scores.
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Affiliation(s)
- O Blumenfeld
- Human Population Biology Research Unit, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Verma P, Dalal K. Serum cartilage oligomeric matrix protein (COMP) in knee osteoarthritis: a novel diagnostic and prognostic biomarker. J Orthop Res 2013; 31:999-1006. [PMID: 23423905 DOI: 10.1002/jor.22324] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 01/23/2013] [Indexed: 02/04/2023]
Abstract
A case-control study was conducted to estimate the association of cartilage oligomeric matrix protein (COMP) with knee osteoarthritis (OA) and to examine the potential utility of COMP as a diagnostic and prognostic biomarker in early knee OA. The COMP levels were estimated in the blood sera of 150 subjects belonging to study group (n = 100) and control one (n = 50). Patients with confirmed clinical isolated knee OA diagnosed through American College of Rheumatology criteria were included and were without any other cause of knee pain. ELISA was used to determine the levels of COMP, interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α). The median (range) serum COMP levels were observed to be 1117.21 ng/ml (125.03-4209.75 ng/ml) in OA patients and 338.62 ng/ml (118-589 ng/ml) in control subjects with p < 0.001. The COMP levels of study group were negatively correlated (correlation factor -0.88) with disease duration and positively correlated with age, BMI, pain score and IL-1β with correlation factors 0.86, 0.63, 0.76, and 0.79, respectively with p < 0.001. Gender differentiation was found in study group with 52% higher COMP level in males as compared to that of females. There was no significant correlation of COMP levels with radiological grading, erythrocyte sedimentation rate (ESR), hemoglobin (Hb), and TNF-α. The serum COMP levels may be used as a diagnostic OA marker along with prognostic value in determining the patients at risk of rapidly progressing this debilitating joint disease. The serum COMP level remains significantly high in first 3 years of disease duration.
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Affiliation(s)
- Priyanka Verma
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India.
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Cillero-Pastor B, Eijkel GB, Kiss A, Blanco FJ, Heeren RMA. Matrix-assisted laser desorption ionization-imaging mass spectrometry: a new methodology to study human osteoarthritic cartilage. ACTA ACUST UNITED AC 2013; 65:710-20. [PMID: 23280504 DOI: 10.1002/art.37799] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 11/08/2012] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Information about the distribution of proteins and the modulation that they undergo in the different phases of rheumatic pathologies is essential to understanding the development of these diseases. We undertook this study to demonstrate the utility of mass spectrometry (MS)-based molecular imaging for studying the spatial distribution of different components in human articular cartilage sections. METHODS We compared the distribution of peptides and proteins in human control and osteoarthritic (OA) cartilage. Human control and OA cartilage slices were cut and deposited on conductive slides. After tryptic digestion, we performed matrix-assisted laser desorption ionization-imaging MS (MALDI-IMS) experiments in a MALDI-quadrupole time-of-flight mass spectrometer. Protein identification was undertaken with a combination of multivariate statistical methods and Mascot protein database queries. Hematoxylin and eosin staining and immunohistochemistry were performed to validate the results. RESULTS We created maps of peptide distributions at 150-μm raster size from control and OA human cartilage. Proteins such as biglycan, prolargin, decorin, and aggrecan core protein were identified and localized. Specific protein markers for cartilage oligomeric matrix protein and fibronectin were found exclusively in OA cartilage samples. Their distribution displayed a stronger intensity in the deep area than in the superficial area. New tentative OA markers were found in the deep area of the OA cartilage. CONCLUSION MALDI-IMS identifies and localizes disease-specific peptides and proteins in cartilage. All the OA-related peptides and proteins detected display a stronger intensity in the deep cartilage. MS-based molecular imaging is demonstrated to be an innovative method for studying OA pathology.
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Murab S, Chameettachal S, Bhattacharjee M, Das S, Kaplan DL, Ghosh S. Matrix-embedded cytokines to simulate osteoarthritis-like cartilage microenvironments. Tissue Eng Part A 2013; 19:1733-53. [PMID: 23470228 DOI: 10.1089/ten.tea.2012.0385] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
In vivo, cytokines noncovalently bind to the extracellular matrix (ECM), to facilitate intimate interactions with cellular receptors and potentiate biological activity. Development of a biomaterial that simulates this type of physiological binding and function is an exciting proposition for designing controlled advanced delivery systems for simulating in vivo conditions in vitro. We have decorated silk protein with sulfonated moieties through diazonium coupling reactions to noncovalently immobilize pro-inflammatory cytokines interleukin-1 beta (IL-1β) and tumor necrosis factor alpha (TNF-α) in such a biomimetic manner. After adsorption of the cytokines to the diazonium-modified silk matrix, constant release of cytokines up to at least 3 days was demonstrated, as an initial step to simulate an osteoarthritic (OA) microenvironment in vitro. Matrix-embedded cytokines induced the formation of multiple elongated processes in chondrocytes in vitro, akin to what is seen in OA cartilage in vivo. Gene expression profiles with this in vitro tissue model of OA showed significant similarities to profiles from explanted OA cartilage tissues collected from patients who underwent total knee replacement surgery. The common markers of OA, including COL, MMP, TIMP, ADAMTS, and metallothioneins, were upregulated at least 35-fold in the in vitro model when compared to the control-non-OA in vitro generated tissue-engineered cartilage. The microarray data were validated by reverse transcriptase-polymerase chain reaction. Mechanistically, protein interaction studies indicated that TNF-α and IL-1β synergistically controlled the equilibrium between MMPs and their inhibitors, TIMPs, resulting in ECM degradation through the MAPK pathway. This study offers a promising initial step toward establishing a relevant in vitro OA disease model, which can be further modified to assess signaling mechanisms, responses to cell or drug treatments and patient-specific features.
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Affiliation(s)
- Sumit Murab
- Department of Textile Technology, Indian Institute of Technology Delhi, New Delhi, India
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Albro MB, Nims RJ, Cigan AD, Yeroushalmi KJ, Shim JJ, Hung CT, Ateshian GA. Dynamic mechanical compression of devitalized articular cartilage does not activate latent TGF-β. J Biomech 2013; 46:1433-9. [PMID: 23540376 DOI: 10.1016/j.jbiomech.2013.03.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 02/27/2013] [Accepted: 03/06/2013] [Indexed: 11/24/2022]
Abstract
A growing body of research has highlighted the role that mechanical forces play in the activation of latent TGF-β in biological tissues. In synovial joints, it has recently been demonstrated that the mechanical shearing of synovial fluid, induced during joint motion, rapidly activates a large fraction of its soluble latent TGF-β content. Based on this observation, the primary hypothesis of the current study is that the mechanical deformation of articular cartilage, induced by dynamic joint motion, can similarly activate the large stores of latent TGF-β bound to the tissue extracellular matrix (ECM). Here, devitalized deep zone articular cartilage cylindrical explants (n=84) were subjected to continuous dynamic mechanical loading (low strain: ±2% or high strain: ±7.5% at 0.5Hz) for up to 15h or maintained unloaded. TGF-β activation was measured in these samples over time while accounting for the active TGF-β that remains bound to the cartilage ECM. Results indicate that TGF-β1 is present in cartilage at high levels (68.5±20.6ng/mL) and resides predominantly in the latent form (>98% of total). Under dynamic loading, active TGF-β1 levels did not statistically increase from the initial value nor the corresponding unloaded control values for any test, indicating that physiologic dynamic compression of cartilage is unable to directly activate ECM-bound latent TGF-β via purely mechanical pathways and leading us to reject the hypothesis of this study. These results suggest that deep zone articular chondrocytes must alternatively obtain access to active TGF-β through chemical-mediated activation and further suggest that mechanical deformation is unlikely to directly activate the ECM-bound latent TGF-β of various other tissues, such as muscle, ligament, and tendon.
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Affiliation(s)
- Michael B Albro
- Department of Mechanical Engineering, Columbia University, 500 West 120th Street, 220 S.W. Mudd, NY 10027, USA.
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Cartilage oligomeric matrix protein in serum and epiphyseal plate in Kashin-Beck disease. CURRENT ORTHOPAEDIC PRACTICE 2013. [DOI: 10.1097/bco.0b013e3182793dde] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hoch JM, Mattacola CG, Bush H, McKeon JM, Hewett TE, Lattermann C. Longitudinal documentation of serum cartilage oligomeric matrix protein and patient-reported outcomes in collegiate soccer athletes over the course of an athletic season. Am J Sports Med 2012; 40:2583-9. [PMID: 22967826 PMCID: PMC3615716 DOI: 10.1177/0363546512458260] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Serum cartilage oligomeric matrix protein (sCOMP) is a biomarker for cartilage degradation. Patient-reported outcomes (PRO) are used to document postinjury recovery and may be used to prospectively identify changes in the course of a season. It is unknown what effect intense, continuous physical activity has on sCOMP levels and PRO values in athletes over the duration of a soccer season. Hypothesis/ PURPOSE The purpose of this study was to longitudinally document sCOMP levels and to determine whether changes in PROs occur in collegiate soccer athletes during a season. The hypotheses tested were that sCOMP levels and PRO scores would remain stable over the duration of the spring soccer season. STUDY DESIGN Case series; level of evidence, 4. METHODS Twenty-nine National Collegiate Athletic Association Division-I soccer athletes (18 men, 11 women; age, 19.6 ± 1.2 years; height, 177.8 ± 7.4 cm; mass, 73.8 ± 10.2 kg) participated in 3 (pre-[T(1)], mid-[T(2)], and postseason [T(3)]) data collection sessions. Subjects were included if they were participants in the spring soccer season and were free of severe knee injury at the time of data collection. At each session, subjects completed PROs (Lysholm, International Knee Documentation Committee scores) before serum collection. RESULTS For sCOMP (ng/mL), there was a significant effect for time, with significant increases at T(2) (1723.5 ± 257.9, P < .001) and T(3) (1624.7 ± 231.6, P = .002) when compared with T(1)(1482.9 ± 217.9). For each of the PROs, there was a significant effect for time from T(1)-T(3), and at T(2)-T(3) for the IKDC. CONCLUSION These data indicate sCOMP levels increased as athletes reported an increased level of function over time. However, the differences in sCOMP levels did not reach the calculated minimal detectable change (MDC) value and the differences in PRO scores did not reach previously calculated MDC values. It is unclear whether these increases in sCOMP levels were caused by an increase in cartilage matrix breakdown or turnover. Even though these elevations may not be clinically meaningful, this biomarker may have the potential to be used for future research studies investigating the effects of exercise on overall joint health in longitudinal studies. In addition, these results indicate fluctuations in sCOMP occur during a competitive season and must be taken into consideration for future biomarker studies.
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Affiliation(s)
- Johanna M. Hoch
- Division of Athletic Training & Rehabilitation Sciences Doctoral Program, College of Health Sciences, University of Kentucky
| | - Carl G. Mattacola
- Division of Athletic Training, Rehabilitation Sciences Doctoral Program, College of Health Sciences, University of Kentucky
| | - HeatherM. Bush
- Department of Biostatistics, College of Public Health, University of Kentucky
| | - Jennifer Medina McKeon
- Division of Athletic Training, Rehabilitation Sciences Doctoral Program, College of Health Sciences, University of Kentucky
| | - Timothy E. Hewett
- Departments of Physiology & Cell Biology, Orthopaedic Surgery, Family Medicine & Biomedical Engineering and the School of Allied Health Professions, College of Medicine, Ohio State University & Cincinnati Children’s Hospital
| | - Christian Lattermann
- Department of Orthopaedics and Sports Medicine, College of Medicine, University of Kentucky
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Albro MB, Cigan AD, Nims RJ, Yeroushalmi KJ, Oungoulian SR, Hung CT, Ateshian GA. Shearing of synovial fluid activates latent TGF-β. Osteoarthritis Cartilage 2012; 20:1374-82. [PMID: 22858668 PMCID: PMC3448789 DOI: 10.1016/j.joca.2012.07.006] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 07/06/2012] [Accepted: 07/12/2012] [Indexed: 02/02/2023]
Abstract
OBJECTIVE TGF-β is synthesized in an inactive latent complex that is unable to bind to membrane receptors, thus unable to induce a cellular biological response until it has been activated. In addition to activation by chemical mediators, recent studies have demonstrated that mechanical forces may activate latent TGF-βvia integrin-mediated cellular contractions, or mechanical shearing of blood serum. Since TGF-β is present in synovial fluid in latent form, and since normal diarthrodial joint function produces fluid shear, this study tested the hypothesis that the native latent TGF-β1 of synovial fluid can be activated by shearing. DESIGN Synovial fluid from 26 bovine joints and three adult human joints was sheared at mean shear rates up to 4000 s(-1) for up to 15 h. RESULTS Unsheared synovial fluid was found to contain high levels of latent TGF-β1 (4.35 ± 2.02 ng/mL bovine, 1.84 ± 0.89 ng/mL human; mean ± radius of 95% confidence interval) and low amounts (<0.05 ng/mL) of the active peptide. Synovial fluid concentrations of active TGF-β1 increased monotonically with shear rate and shearing duration, reaching levels of 2.64 ± 1.22 ng/mL for bovine and 0.60 ± 0.39 ng/mL for human synovial fluid. Following termination of shearing, there was no statistical change in these active levels over the next 8 h for either species, demonstrating long-term stability of the activated peptide. The unsheared control group continued to exhibit negligible levels of active TGF-β1 at all times. CONCLUSIONS Results confirmed the hypothesis of this study and suggest that shearing of synovial fluid might contribute an additional biosynthetic effect of mechanical loading of diarthrodial joints.
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Affiliation(s)
- M B Albro
- Department of Mechanical Engineering, Columbia University, New York, NY 10027, United States
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Erhart-Hledik JC, Favre J, Asay JL, Smith RL, Giori NJ, Mündermann A, Andriacchi TP. A relationship between mechanically-induced changes in serum cartilage oligomeric matrix protein (COMP) and changes in cartilage thickness after 5 years. Osteoarthritis Cartilage 2012; 20:1309-15. [PMID: 22868052 DOI: 10.1016/j.joca.2012.07.018] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 07/12/2012] [Accepted: 07/24/2012] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate the hypothesis that a mechanical stimulus (30-min walk) will produce a change in serum concentrations of cartilage oligomeric matrix protein (COMP) that is associated with cartilage thickness changes on magnetic resonance imaging (MRI). METHODS Serum COMP concentrations were measured by enzyme-linked immunosorbent assay in 17 patients (11 females, age: 59.0±9.2 years) with medial compartment knee osteoarthritis (OA) at study entry immediately before, immediately after, 3.5 h, and 5.5 h after a 30-min walking activity. Cartilage thickness changes in the medial femur and medial tibia were determined from MR images taken at study entry and at 5-year follow-up. Relationships between changes in cartilage thickness and COMP levels, with post-activity concentrations expressed as a percentage of pre-activity levels, were assessed by the calculation of Pearson correlation coefficients and by multiple linear regression analysis, with adjustments for age, sex, and body mass index (BMI). RESULTS Changes in COMP levels 3.5 h and 5.5 h post-activity were correlated with changes in cartilage thickness in the medial femur and tibia at the 5-year follow-up. The results were strengthened after analyses were adjusted for age, sex, and BMI. Neither baseline pre-activity COMP levels nor changes in COMP levels immediately post-activity were correlated with cartilage thickness changes. CONCLUSIONS The results of this study support the hypothesis that a change in COMP concentration induced by a mechanical stimulus is associated with cartilage thinning at 5 years. Mechanically-induced changes in mechano-sensitive biomarkers should be further explored in the context of stimulus-response models to improve the ability to assess OA progression.
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Affiliation(s)
- J C Erhart-Hledik
- Center for Tissue Regeneration, Repair, and Restoration, Palo Alto VA, Palo Alto, CA, United States.
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Jones BA, Pei M. Synovium-Derived Stem Cells: A Tissue-Specific Stem Cell for Cartilage Engineering and Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2012; 18:301-11. [PMID: 22429320 DOI: 10.1089/ten.teb.2012.0002] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Brendan A. Jones
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, West Virginia
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, West Virginia
- Division of Exercise Physiology, West Virginia University, Morgantown, West Virginia
- Division of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia
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Clusters within a wide spectrum of biochemical markers for osteoarthritis: data from CHECK, a large cohort of individuals with very early symptomatic osteoarthritis. Osteoarthritis Cartilage 2012; 20:745-54. [PMID: 22503811 DOI: 10.1016/j.joca.2012.04.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 03/08/2012] [Accepted: 04/04/2012] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To assess a wide spectrum of biochemical markers (biomarkers) in a large cohort of individuals with (very) early symptomatic knee and/or hip osteoarthritis (OA). Secondly, to investigate associations between biomarkers and between biomarkers and demographics to demonstrate validity of the obtained dataset and further investigate the involvement and/or role of these biomarkers in OA. DESIGN Fourteen biomarkers (uCTX-II, uCTX-I, uNTX-I, sCOMP, sPIIANP, sCS846, sC1,2C, sOC, sPINP, sHA, sPIIINP, pLeptin, pAdiponectin, pResistin) were assessed by ELISA or RIA in CHECK (Cohort Hip and Cohort Knee), a 10-year prospective cohort of 1,002 individuals with early symptomatic knee and/or hip OA. RESULTS Quality controls revealed that gathered data were technically reliable. The majority of biomarkers showed relevant associations with demographic variables, which were expectedly different between genders and/or menopausal status for some. Principal component analysis enabled identification of five clusters, consecutively designated as 'bone-CTX-II', 'inflammation', 'synovium', 'C1,2C-adipokines', and 'cartilage synthesis' cluster. Notably, uCTX-II clustered with biomarkers of bone metabolism, while sCOMP clustered with biomarkers of synovial activity. CONCLUSIONS The identified clusters extended knowledge on individual biomarkers from mostly smaller studies as did the observed associations between biomarker levels and demographics, from which validity of our data was deduced. uCTX-II may not only reflect articular cartilage but also bone metabolism and sCOMP may reflect synovial rather than cartilage metabolism. Major involvement of adipokines in joint metabolism was not identified.
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Analysis of cartilage oligomeric matrix protein and matrix metalloproteinase-9 in cerebrospinal fluid of miniature dachshund with intervertebral disc herniation. Res Vet Sci 2012; 93:1487-92. [PMID: 22440362 DOI: 10.1016/j.rvsc.2012.02.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Revised: 01/24/2012] [Accepted: 02/26/2012] [Indexed: 11/21/2022]
Abstract
We evaluated whether the cerebrospinal fluid (CSF) concentration of cartilage oligomeric matrix protein (COMP) is related to disease severity, prognosis and matrix metalloproteinase (MMP)-9 activity of the CSF in miniature dachshund with intervertebral disc herniation. Samples were obtained from 23 patients and 6 normal dogs, and all patients received hemilaminectomy. Twenty dogs recovered successfully and 3 of 11 dogs without deep nociception had MMP-9 activity in the CSF and an unsuccessful outcome. The COMP levels from patients were significantly higher than those from normal dogs. MMP-9 activity and neurological severity were not related to the COMP levels. However, the COMP levels from 3 unsuccessful cases that had MMP-9 activity were significantly lower than those from all recovered cases and/or successful cases without deep nociception. Concerning severe cases, increased proteolytic activity might affect the COMP concentration and prognosis due to MMP-9 associated deleterious effects.
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Rejuvenation of nucleus pulposus cells using extracellular matrix deposited by synovium-derived stem cells. Spine (Phila Pa 1976) 2012; 37:459-69. [PMID: 21540772 DOI: 10.1097/brs.0b013e31821fcc64] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN After plating for 6 passages on either plastic flasks or extracellular matrix (ECM) deposited by synovium-derived stem cells (SDSCs), expanded nucleus pulposus (NP) cells were evaluated for redifferentiation capacity. OBJECTIVE The aim was to assess the feasibility of using ECM deposited by a tissue-specific stem cell to provide a 3-dimensional microenvironment for NP cell rejuvenation. SUMMARY OF BACKGROUND DATA Autologous disc cell-based therapy is a promising approach for intervertebral disc regeneration. Unfortunately, the current in vitro expansion of NP cells in monolayer results in dedifferentiation of these cells. METHODS Primary NP cells were plated on either plastic flasks or ECM for 6 consecutive passages. At each passage, cell numbers were counted for proliferation rate, cell phenotype was evaluated using flow cytometry, and cell differentiation status was assessed using real-time polymerase chain reaction (PCR). The pellets from expanded NP cells at passages 1, 4, and 6 were incubated in a serum-free defined medium for 14 days. Redifferentiation capacity of the expanded NP cells was evaluated using histology, biochemistry, and real-time PCR. RESULTS NP cells expanded on ECM grew much faster with a smaller size and fibroblast-like shape compared with those on plastic flasks. ECM-treated NP cells acquired an enhanced CD90 expression and higher mRNA levels of types I, II, and X collagen and aggrecan, as well as a robust redifferentiation capacity, evidenced by dramatically increased type II collagen, aggrecan, and Sox9 and decreased type I collagen for up to 6 passages. CONCLUSION SDSC-derived ECM can provide a tissue-specific microenvironment for the rejuvenation of NP cells with a higher proliferation rate and redifferentiation capacity. These characteristics may play a role in improving an autologous disc cell-based minimally invasive therapeutic approach toward physiological reconstruction of a biologically functional disc in the clinical setting.
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Coustry F, Posey KL, Liu P, Alcorn JL, Hecht JT. D469del-COMP retention in chondrocytes stimulates caspase-independent necroptosis. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 180:738-48. [PMID: 22154936 PMCID: PMC3349870 DOI: 10.1016/j.ajpath.2011.10.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 10/19/2011] [Accepted: 10/23/2011] [Indexed: 12/31/2022]
Abstract
Mutations in the cartilage oligomeric matrix protein gene (COMP) cause pseudoachondroplasia (PSACH). This dysplasia results from the intracellular retention of mutant COMP protein and premature death of growth-plate chondrocytes. Toward better understanding of these underlying mechanisms, we examined D469del-COMP activation of the unfolded protein response and cell death pathways in rat chondrosarcoma cells. Using an inducible expression system, we examined the effects of D469del-COMP retention after 4 days of mRNA expression and then 5 days without inducing agent. Retention of D469del-COMP stimulated Chop (Ddit3) and Gadd34 (Ppp1r15a) and triggered reactivation of protein translation that exacerbated intracellular retention. High levels of Nox4 and endoplasmic reticulum receptor stress-inducible Ero1β generated reactive oxygen species, causing oxidative stress. Increased expression of Gadd genes and presence of γH2AX indicated that DNA damage was occurring. The presence of cleaved apoptosis inducing factor (tAIF) and the absence of activated caspases indicated that retention of D469del-COMP triggers cell death in chondrocytes by necroptosis, a caspase-independent programmed necrosis. Loss of growth-plate chondrocytes by necroptosis was also found in our pseudoachondroplasia mouse model. These results suggest a model in which D469del-COMP expression induces persistent endoplasmic reticulum stress, oxidative stress, and DNA damage, thus priming chondrocytes for necroptosis. We define for the first time the precise mechanisms underlying D469del-COMP pathology in pseudoachondroplasia and suggest that oxidative stress and AIF may be promising therapeutic targets.
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Affiliation(s)
- Françoise Coustry
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, Texas
| | - Karen L. Posey
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, Texas
| | - Peiman Liu
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, Texas
| | - Joseph L. Alcorn
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, Texas
| | - Jacqueline T. Hecht
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, Texas
- Shriners Hospital for Children, Houston, Texas
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Song SY, Han YD, Hong SY, Kim K, Yang SS, Min BH, Yoon HC. Chip-based cartilage oligomeric matrix protein detection in serum and synovial fluid for osteoarthritis diagnosis. Anal Biochem 2012; 420:139-46. [DOI: 10.1016/j.ab.2011.09.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 09/12/2011] [Accepted: 09/13/2011] [Indexed: 10/17/2022]
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Hoch JM, Mattacola CG, Medina McKeon JM, Howard JS, Lattermann C. Serum cartilage oligomeric matrix protein (sCOMP) is elevated in patients with knee osteoarthritis: a systematic review and meta-analysis. Osteoarthritis Cartilage 2011; 19:1396-404. [PMID: 22001901 PMCID: PMC3962955 DOI: 10.1016/j.joca.2011.09.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 09/15/2011] [Accepted: 09/23/2011] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To be used in diagnostic studies, it must be demonstrated that biomarkers can differentiate between diseased and non-diseased patients. Therefore, the purpose of this study was to answer the following questions: (1) Is serum cartilage oligomeric matrix protein (sCOMP) elevated in patients with radiographically diagnosed knee osteoarthritis (OA) compared to controls? (2) Are there differences in sCOMP levels when comparing differing radiographic OA severities to controls? METHODS Systematic review and meta-analysis. DATA SOURCES A systematic search of CINAHL, PEDro, Medline, and SportsDiscus was completed in March 2010. KEYWORDS knee, osteoarthritis, sCOMP, radiography. Study inclusion criteria: Studies were written in English, compared healthy adults with knee OA patients, used the Kellgren Lawrence (K/L) classification, measured sCOMP, and reported means and standard deviations for sCOMP. RESULTS For question 1, seven studies were included resulting in seven comparisons. A moderate overall effect size (ES) indicated sCOMP was consistently elevated in those with radiographically diagnosed knee OA when compared to controls (ES = 0.60, P < 0.001). For question 2, four studies were included resulting in 13 comparisons between radiographic OA severity levels and controls. Strong ESs were calculated for K/L-1 (ES = 1.43, P = 0.28), K/L-3 (ES = 1.05, P = 0.04), and K/L-4 (ES = 1.40, P = 0.003). A moderate ES was calculated for K/L-2 (ES = 0.60, P = 0.01). CONCLUSIONS These results indicate sCOMP is elevated in patients with knee OA and is sensitive to OA disease progression. Future research studies with a higher level of evidence should be conducted to investigate the use of this biomarker as an indicator for OA development and progression.
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Affiliation(s)
- J M Hoch
- Division of Athletic Training & Rehabilitation Sciences Doctoral Program, University of Kentucky, College of Health Sciences, 214 Wethington Building, 900 South Limestone, Lexington, KY 40536-0200, United States.
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Hoch JM, Mattacola CG, Medina-McKeon JM, Shah JN, Lattermann C. Determination of the Interday and Intraday Reliability of Serum Cartilage Oligomeric Matrix Protein in a Physically Active Population. Cartilage 2011; 2:394-8. [PMID: 26069598 PMCID: PMC4297139 DOI: 10.1177/1947603511414179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE To determine the intraday and interday reliability of serum cartilage oligomeric matrix protein (sCOMP) in a physically active population with no history of lower extremity surgery. DESIGN A repeated-measures reliability study was employed to determine the intraday and interday reliability of sCOMP in a physically active cohort. A total of 23 subjects were recruited to the laboratory on 3 separate occasions for nonfasting serum collection. Subjects had no history of lower extremity surgery and were free from acute injury within the last 3 months. RESULTS Our results indicate strong reliability for both intraday intraclass correlation coefficient (ICC) (0.76) and interday ICC (0.74) sCOMP values. CONCLUSION Our results demonstrate that following 30 minutes of inactivity, nonfasting serum samples remain stable over the course of 1 day and between 2 consecutive days in a healthy population with no history of lower extremity surgery. Future research studies are needed to further investigate the magnitude of change in this biomarker for patients with acute articular cartilage damage to determine its appropriateness for use in this population and for varying degrees of articular cartilage severity.
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Affiliation(s)
- Johanna M. Hoch
- Department of Rehabilitation Sciences, University of Kentucky, Lexington, KY, USA,Johanna M. Hoch, Department of Rehabilitation Sciences, University of Kentucky, 900 South Limestone, Charles Wethington Building, Lexington, KY 40536
| | - Carl G. Mattacola
- Department of Rehabilitation Sciences, University of Kentucky, Lexington, KY, USA
| | | | - Jay N. Shah
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, KY, USA
| | - Christian Lattermann
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, KY, USA
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Li H, Haudenschild D, Posey K, Hecht J, Di Cesare P, Yik J. Comparative analysis with collagen type II distinguishes cartilage oligomeric matrix protein as a primary TGFβ-responsive gene. Osteoarthritis Cartilage 2011; 19:1246-53. [PMID: 21843649 PMCID: PMC4098880 DOI: 10.1016/j.joca.2011.07.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Revised: 07/15/2011] [Accepted: 07/25/2011] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study aims to investigate the regulation of expression of Cartilage oligomeric matrix protein (COMP), which is predominately expressed by chondrocytes and functions to organize the extracellular matrix. Mutations in COMP cause two skeletal dysplasias: pseudoachondroplasia and multiple epiphyseal dysplasia. The mechanism controlling COMP expression during chondrocyte differentiation is still poorly understood. DESIGN Primary human bone marrow-derived stem cells were induced to differentiate into chondrocyte by pellet cultures. We then compared the temporal expression of COMP with the well-characterized cartilage-specific Type II collagen (Col2a1), and their response to transforming growth factor (TGF)β and Sox trio (Sox5, 6, and 9) stimulation. RESULTS COMP and Col2a1 expression are differentially regulated by three distinct mechanisms. First, upregulation of COMP mRNA precedes Col2a1 by several days during chondrogenesis. Second, COMP expression is independent of high cell density but requires TGF-β1. Induction of COMP mRNA by TGF-β1 is detected within 2h in the absence of protein synthesis and is blocked by specific inhibitors of the TGFβ signaling pathway; and therefore, COMP is a primary TFGβ-response gene. Lastly, while Col2a1 expression is intimately controlled by the Sox trio, overexpression of Sox trio fails to activate the COMP promoter. CONCLUSION COMP and Col2a1 expression are regulated differently during chondrogenesis. COMP is a primary response gene of TGFβ and its fast induction during chondrogenesis suggests that COMP is suitable for rapidly accessing the chondrogenic potential of stem cells.
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Affiliation(s)
- H. Li
- Department of Orthopaedic Surgery, Lawrence J. Ellison Musculoskeletal Research Center, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - D.R. Haudenschild
- Department of Orthopaedic Surgery, Lawrence J. Ellison Musculoskeletal Research Center, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - K.L. Posey
- Department of Pediatrics, University of Texas Medical School at Houston, Texas, USA
| | - J.T. Hecht
- Department of Pediatrics, University of Texas Medical School at Houston, Texas, USA
| | - P.E. Di Cesare
- Department of Orthopaedic Surgery, Lawrence J. Ellison Musculoskeletal Research Center, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - J.H.N. Yik
- Department of Orthopaedic Surgery, Lawrence J. Ellison Musculoskeletal Research Center, University of California at Davis Medical Center, Sacramento, CA 95817, USA,Address correspondence and reprint requests to: J.H.N. Yik, Department of Orthopaedic Surgery, Lawrence J. Ellison Musculoskeletal Research Center, University of California at Davis Medical Center, 4635 Second Ave, Research Building 1, Room 2000, Sacramento, CA 95817, USA. Fax: 1-916-734-5750. (J.H.N. Yik)
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Abstract
Thrombospondins are evolutionarily conserved, calcium-binding glycoproteins that undergo transient or longer-term interactions with other extracellular matrix components. They share properties with other matrix molecules, cytokines, adaptor proteins, and chaperones, modulate the organization of collagen fibrils, and bind and localize an array of growth factors or proteases. At cell surfaces, interactions with an array of receptors activate cell-dependent signaling and phenotypic outcomes. Through these dynamic, pleiotropic, and context-dependent pathways, mammalian thrombospondins contribute to wound healing and angiogenesis, vessel wall biology, connective tissue organization, and synaptogenesis. We overview the domain organization and structure of thrombospondins, key features of their evolution, and their cell biology. We discuss their roles in vivo, associations with human disease, and ongoing translational applications. In many respects, we are only beginning to appreciate the important roles of these proteins in physiology and pathology.
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Affiliation(s)
- Josephine C Adams
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, United Kingdom.
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Haudenschild DR, Hong E, Yik JHN, Chromy B, Mörgelin M, Snow KD, Acharya C, Takada Y, Di Cesare PE. Enhanced activity of transforming growth factor β1 (TGF-β1) bound to cartilage oligomeric matrix protein. J Biol Chem 2011; 286:43250-8. [PMID: 21940632 DOI: 10.1074/jbc.m111.234716] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cartilage oligomeric matrix protein (COMP) is an important non-collagenous cartilage protein that is essential for the structural integrity of the cartilage extracellular matrix. The repeated modular structure of COMP allows it to "bridge" and assemble multiple cartilage extracellular matrix components such as collagens, matrilins, and proteoglycans. With its modular structure, COMP also has the potential to act as a scaffold for growth factors, thereby affecting how and when the growth factors are presented to cell-surface receptors. However, it is not known whether COMP binds growth factors. We studied the binding interaction between COMP and TGF-β1 in vitro and determined the effect of COMP on TGF-β1-induced signal transduction in reporter cell lines and primary cells. Our results demonstrate that mature COMP protein binds to multiple TGF-β1 molecules and that the peak binding occurs at slightly acidic pH. These interactions were confirmed by dual polarization interferometry and visualized by rotary shadow electron microscopy. There is cation-independent binding of TGF-β1 to the C-terminal domain of COMP. In the presence of manganese, an additional TGF-β-binding site is present in the TSP3 repeats of COMP. Finally, we show that COMP-bound TGF-β1 causes increased TGF-β1-dependent transcription. We conclude that TGF-β1 binds to COMP and that TGF-β1 bound to COMP has enhanced bioactivity.
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Affiliation(s)
- Dominik R Haudenschild
- Lawrence J. Ellison Musculoskeletal Research Center, Department of Orthopaedic Surgery, University of California Davis Medical Center, Sacramento, California 95817, USA.
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Identification and characterization of cartilage oligomeric matrix protein as a novel pathogenic factor in keloids. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 179:1951-60. [PMID: 21872564 DOI: 10.1016/j.ajpath.2011.06.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2010] [Revised: 06/15/2011] [Accepted: 06/22/2011] [Indexed: 11/20/2022]
Abstract
To elucidate pathogenic molecules in keloids, microarray analysis was performed using RNAs extracted from keloid-derived fibroblasts and normal skin-derived fibroblasts from the same patient with a typical keloid. Among 11 up-regulated extracellular matrix genes, cartilage oligomeric matrix protein (COMP) was most prominently increased. Up-regulation of COMP mRNA and protein was confirmed in the keloid tissue by quantitative RT-PCR and Western blot. Using immunohistochemistry, we compared 15 keloids and 6 control normal tissues using a COMP-specific antibody and found that COMP stained positively in 10 keloids (66.7%), whereas no staining was observed in normal tissues, demonstrating the ectopic expression of COMP in keloids. Comparing keloids smaller or larger than 10 cm(2), the larger keloids were significantly more intensely stained with the COMP-specific antibody. Because COMP reportedly accelerates collagen type I fibril assembly, we examined whether extracellular type I collagen deposition is altered by silencing COMP mRNA by small interfering RNA (siRNA). Immunocytochemistry showed at 96 hours after transfection with COMP siRNA that the extracellular deposition of type I collagen was decreased compared to that observed with control siRNA. Further, COMP knockdown decreased amount collagens type I to V in the medium and on the cell surfaces. Our data suggest that COMP facilitates keloid formation by accelerating collagen deposition, thus providing a new therapeutic target.
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Kim JH, Lee MC, Seong SC, Park KH, Lee S. Enhanced Proliferation and Chondrogenic Differentiation of Human Synovium-Derived Stem Cells Expanded with Basic Fibroblast Growth Factor. Tissue Eng Part A 2011; 17:991-1002. [DOI: 10.1089/ten.tea.2010.0277] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Ji Hyun Kim
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Myung Chul Lee
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Sang Cheol Seong
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Ki Ho Park
- Clinical Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Sahnghoon Lee
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, Korea
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Biochemical markers in the diagnosis of chondral defects following anterior cruciate ligament insufficiency. INTERNATIONAL ORTHOPAEDICS 2011; 35:1633-7. [PMID: 21221577 DOI: 10.1007/s00264-010-1191-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Accepted: 12/10/2010] [Indexed: 10/18/2022]
Abstract
PURPOSE The aim of this study was to determine the value of systemic biochemical markers of bone turnover-urine levels of cross-linked C-terminal telopeptide I (uCTX-I), urinary C-terminal telopeptide II (uCTX-II) and serum cartilage oligomeric matrix protein (sCOMP)-in the diagnosis of chondral defects after anterior cruciate ligament (ACL) rupture. Thirty-eight patients with previous ACL rupture were included. METHODS Magnetic resonance imaging (MRI) of the injured and the intact knee joint was performed with volumetric measurement of volume and area of cartilage (VC/AC), area of subchondral bone (cAB), and area of subchondral bone denuded and eroded (dAB). Biochemical markers were measured using commercially available enzyme-linked immunoassays. RESULTS MRI-based volumetric cartilage measurement showed significant differences between the injured and the intact knees. uCTX-I, sCOMP and in parts uCTX-II correlated well with MRI parameters. CTX-I showed a significant correlation with VC and AC of the whole knee joint. CONCLUSIONS The results suggest that uCTX-I, uCTX-II and sCOMP could identify patients with focal cartilage lesions from an early stage of osteoarthritis of the knee.
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Min BH, Li TZ. Stem cells in musculoskeletal system for clinical application. JOURNAL OF THE KOREAN MEDICAL ASSOCIATION 2011. [DOI: 10.5124/jkma.2011.54.5.491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Byoung-Hyun Min
- Department of Orthopedic Surgery, Ajou University School of Medicine, Ajou University Medical Center, Suwon, Korea
| | - Tian Zhu Li
- Cell Therapy Center, Ajou University Medical Center, Suwon, Korea
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Bastiaansen-Jenniskens Y, de Bart A, Koevoet W, Jansen K, Verhaar J, van Osch G, DeGroot J. Elevated Levels of Cartilage Oligomeric Matrix Protein during In Vitro Cartilage Matrix Generation Decrease Collagen Fibril Diameter. Cartilage 2010; 1:200-10. [PMID: 26069552 PMCID: PMC4297071 DOI: 10.1177/1947603510361238] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Cartilage oligomeric matrix protein (COMP) is a protein present in the cartilage matrix and is expressed more abundantly in osteoarthritis cartilage than in healthy cartilage. The present study was designed to investigate the effect of transforming growth factor β (TGFβ) on COMP deposition and the influence of COMP on collagen biochemistry in a long-term 3-dimensional culture. Bovine chondrocytes in alginate beads were cultured with or without 25 ng/mL TGFβ2 for 21 or 35 days. COMP was overexpressed in bovine chondrocytes using lentiviral transfection. COMP gene expression, COMP protein production, collagen and proteoglycan deposition, and collagen fibril thickness were determined. Addition of TGFβ2 resulted in more COMP mRNA and protein than the control condition without growth factors. Lentiviral transduction with COMP resulted in elevated gene expression of COMP and increased COMP levels in the alginate bead and culture medium compared to untransfected cells. Overexpression of COMP did not affect the deposition of collagen, collagen cross-linking, proteoglycan deposition, or the mechanical properties. Stimulating COMP production by either TGFβ2 or lentivirus resulted in collagen fibrils with a smaller diameter. Taken together, COMP deposition can be modulated in cartilage matrix production by the addition of growth factors or by overexpression of COMP. Inducing COMP protein expression resulted in collagen fibrils with a smaller diameter. Because it has been demonstrated that the collagen fibril diameter is associated with mechanical functioning of the matrix, modulating COMP levels should be taken into account in cartilage regeneration strategies.
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Affiliation(s)
- Y.M. Bastiaansen-Jenniskens
- Business Unit BioSciences, TNO Quality of Life, Leiden, the Netherlands,Department of Orthopaedics, University Medical Center Rotterdam, Erasmus Medical Center, Rotterdam, the Netherlands,Yvonne Bastiaansen-Jenniskens, Department of Orthopaedics, Erasmus MC University Hospital, Dr. Molewaterplein 50, 3015 GE Rotterdam, the Netherlands
| | - A.C.W. de Bart
- Business Unit BioSciences, TNO Quality of Life, Leiden, the Netherlands
| | - W. Koevoet
- Department of Otorhinolaryngology, University Medical Center Rotterdam, Erasmus Medical Center, Rotterdam, the Netherlands
| | - K.M.B. Jansen
- Department of Precision and Microsystems Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, the Netherlands
| | - J.A.N. Verhaar
- Department of Orthopaedics, University Medical Center Rotterdam, Erasmus Medical Center, Rotterdam, the Netherlands
| | - G.J.V.M. van Osch
- Department of Orthopaedics, University Medical Center Rotterdam, Erasmus Medical Center, Rotterdam, the Netherlands,Department of Otorhinolaryngology, University Medical Center Rotterdam, Erasmus Medical Center, Rotterdam, the Netherlands
| | - J. DeGroot
- Business Unit BioSciences, TNO Quality of Life, Leiden, the Netherlands
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Abstract
Osteoarthritis (OA) results in the destruction and breakdown of articular cartilage matrix. Breakdown of the cartilage proteoglycan component results in the generation of constituent fragments that can be detected in the blood, synovial fluid or urine. Non-collagenous, non-proteoglycan components of cartilage can also be detected following their release as a result of turnover and disease. OA also alters the circulating profile of metabolites in the body. Metabolomic strategies have been used to distinguish populations with OA from normal populations by the creation of a metabolomic 'fingerprint' attributable to the disease. This paper is the second part of a two-part review and describes some of the techniques used to measure the concentrations of some of these 'non-collagenous' biomarkers, and how the application of these measurements assists the study of joint disease. Collagen-based biomarkers were discussed in part one.
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Blumbach K, Bastiaansen-Jenniskens YM, DeGroot J, Paulsson M, van Osch GJVM, Zaucke F. Combined role of type IX collagen and cartilage oligomeric matrix protein in cartilage matrix assembly: cartilage oligomeric matrix protein counteracts type IX collagen-induced limitation of cartilage collagen fibril growth in mouse chondrocyte cultures. ACTA ACUST UNITED AC 2010; 60:3676-85. [PMID: 19950300 DOI: 10.1002/art.24979] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Defects in the assembly and composition of cartilage extracellular matrix are likely to result in impaired matrix integrity and increased susceptibility to cartilage degeneration. The aim of this study was to determine the functional interaction of the collagen fibril-associated proteins type IX collagen and cartilage oligomeric matrix protein (COMP) during cartilage matrix formation. METHODS Primary chondrocytes from mice deficient in type IX collagen and COMP (double-deficient) were cultured in monolayer or alginate beads. Anchorage of matrix proteins, proteoglycan and collagen content, collagen crosslinks, matrix metalloproteinase activity, and mechanical properties of the matrix were measured. Electron microscopy was used to study the formation of fibrillar structures. RESULTS In cartilage lacking both type IX collagen and COMP, matrilin 3 showed decreased matrix anchorage. Less matrilin 3 was deposited in the matrix of double-deficient chondrocytes, while larger amounts were secreted into the medium. Proteoglycans were less well retained in the matrix formed in alginate cultures, while collagen deposition was not significantly affected. Electron microscopy revealed similar cartilage collagen fibril diameters in the cultures of double-deficient and wild-type chondrocytes. In contrast, a larger fibril diameter was observed in the matrix of chondrocytes deficient in only type IX collagen. CONCLUSION Our results show that type IX collagen and COMP are involved in matrix assembly by mediating the anchorage and regulating the distribution of other matrix macromolecules such as proteoglycans and matrilins and have counteracting effects on collagen fibril growth. Loss of type IX collagen and COMP leads to matrix aberrations that may make cartilage more susceptible to degeneration.
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Affiliation(s)
- K Blumbach
- Center for Biochemistry, Medical Faculty, and Cologne Excellence Cluster on Cellular Stress Response in Aging-Associated Diseases, University of Cologne, Cologne, Germany
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Braga L, Renner JB, Schwartz TA, Woodard J, Helmick CG, Hochberg MC, Jordan JM. Differences in radiographic features of knee osteoarthritis in African-Americans and Caucasians: the Johnston county osteoarthritis project. Osteoarthritis Cartilage 2009; 17:1554-61. [PMID: 19735758 PMCID: PMC4068024 DOI: 10.1016/j.joca.2009.07.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2009] [Revised: 07/07/2009] [Accepted: 07/16/2009] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To examine racial differences in tibiofemoral joint (TFJ) and patellofemoral joint (PFJ) radiographic osteoarthritis in African-American (AA) and Caucasian men and women. METHOD Multiple logistic regression was used to evaluate cross-sectional associations between race and tibiofemoral osteoarthritis (TF-OA) and the presence, severity and location of individual radiographic features of tibiofemoral joint osteoarthritis [TFJ-OA] (osteophytes, joint space narrowing [JSN], sclerosis and cysts) and patellofemoral joint osteoarthritis (PFJ-OA) (osteophytes, JSN and sclerosis), using data from the Johnston County Osteoarthritis Project. Proportional odds ratios (POR) assessed severity of TF-OA, TFJ and PFJ osteophytes, and JSN, adjusting for confounders. Generalized estimating equations accounted for auto-correlation of knees. RESULTS Among 3187 participants (32.5% AAs; 62% women; mean age 62 years), 6300 TFJ and 1957 PFJ were included. Compared to Caucasians, AA men were more likely to have TF-OA (adjusted odds ratio [aOR]=1.36; 95% CI, 1.00-1.86); tri-compartmental TFJ and PFJ osteophytes (aOR=3.06; 95%CI=1.96-4.78), and TFJ and PFJ sclerosis. AA women were more likely than Caucasian to have medial TFJ and tri-compartmental osteophytes (aOR=2.13; 1.55-2.94), and lateral TFJ sclerosis. AAs had more severe TF-OA than Caucasians (adjusted cumulative odds ratio [aPOR]=2.08; 95% CI, 1.19-3.64 for men; aPOR=1.56; 95% CI, 1.06-2.29 for women) and were more likely to have lateral TFJ JSN. CONCLUSIONS Compared to Caucasians, AAs were more likely to have more severe TF-OA; tri-compartmental disease; and lateral JSN. Further research to clarify the discrepancy between radiographic features in OA among races appears warranted.
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Affiliation(s)
- L. Braga
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, NC, USA,Department of Epidemiology, University of North Carolina at Chapel Hill, NC, USA,Department of Radiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - J. B. Renner
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, NC, USA,Department of Radiology, University of North Carolina at Chapel Hill, NC, USA
| | - T. A. Schwartz
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, NC, USA,Department of Biostatistics, School of Public Health, University of North Carolina at Chapel Hill, NC, USA
| | - J. Woodard
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, NC, USA
| | - C. G. Helmick
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - M. C. Hochberg
- Department of Medicine, Epidemiology and Preventive Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - J. M. Jordan
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, NC, USA,Department of Epidemiology, University of North Carolina at Chapel Hill, NC, USA,Department of Medicine, University of North Carolina at Chapel Hill, NC, USA,Address correspondence and reprint requests to: Joanne M. Jordan, Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, 3300 Thurston Building, CB# 7280, Chapel Hill, NC 27599-7280, USA. Tel: 1-919-966-0559; Fax: 1-919-966-1739;
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