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Chen MF, Hu CC, Hsu YH, Chiu YT, Chen KL, Ueng SWN, Chang Y. Characterization and Advancement of an Evaluation Method for the Treatment of Spontaneous Osteoarthritis in STR/ort Mice: GRGDS Peptides as a Potential Treatment for Osteoarthritis. Biomedicines 2023; 11:biomedicines11041111. [PMID: 37189729 DOI: 10.3390/biomedicines11041111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 05/17/2023] Open
Abstract
STR/ort mice spontaneously exhibit the typical osteoarthritis (OA) phenotype. However, studies describing the relationship between cartilage histology, epiphyseal trabecular bone, and age are lacking. We aimed to evaluate the typical OA markers and quantify the subchondral bone trabecular parameters in STR/ort male mice at different weeks of age. We then developed an evaluation model for OA treatment. We graded the knee cartilage damage using the Osteoarthritis Research Society International (OARSI) score in STR/ort male mice with or without GRGDS treatment. We measured the levels of typical OA markers, including aggrecan fragments, matrix metallopeptidase-13 (MMP-13), collagen type X alpha 1 chain (COL10A1), and SRY-box transcription factor 9 (Sox9), and quantified epiphyseal trabecular parameters. Compared to the young age group, elderly mice showed an increased OARSI score, decreased chondrocyte columns of the growth plate, elevated expression of OA markers (aggrecan fragments, MMP13, and COL10A1), and decreased expression of Sox9 at the articular cartilage region in elderly STR/ort mice. Aging also significantly enhanced the subchondral bone remodeling and microstructure change in the tibial plateau. Moreover, GRGDS treatment mitigated these subchondral abnormalities. Our study presents suitable evaluation methods to characterize and measure the efficacy of cartilage damage treatments in STR/ort mice with spontaneous OA.
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Affiliation(s)
- Mei-Feng Chen
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Chih-Chien Hu
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Yung-Heng Hsu
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Yu-Tien Chiu
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Kai-Lin Chen
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Steve W N Ueng
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Yuhan Chang
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
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Li T, Peng J, Li Q, Shu Y, Zhu P, Hao L. The Mechanism and Role of ADAMTS Protein Family in Osteoarthritis. Biomolecules 2022; 12:biom12070959. [PMID: 35883515 PMCID: PMC9313267 DOI: 10.3390/biom12070959] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 01/27/2023] Open
Abstract
Osteoarthritis (OA) is a principal cause of aches and disability worldwide. It is characterized by the inflammation of the bone leading to degeneration and loss of cartilage function. Factors, including diet, age, and obesity, impact and/or lead to osteoarthritis. In the past few years, OA has received considerable scholarly attention owing to its increasing prevalence, resulting in a cumbersome burden. At present, most of the interventions only relieve short-term symptoms, and some treatments and drugs can aggravate the disease in the long run. There is a pressing need to address the safety problems due to osteoarthritis. A disintegrin-like and metalloprotease domain with thrombospondin type 1 repeats (ADAMTS) metalloproteinase is a kind of secretory zinc endopeptidase, comprising 19 kinds of zinc endopeptidases. ADAMTS has been implicated in several human diseases, including OA. For example, aggrecanases, ADAMTS-4 and ADAMTS-5, participate in the cleavage of aggrecan in the extracellular matrix (ECM); ADAMTS-7 and ADAMTS-12 participate in the fission of Cartilage Oligomeric Matrix Protein (COMP) into COMP lyase, and ADAMTS-2, ADAMTS-3, and ADAMTS-14 promote the formation of collagen fibers. In this article, we principally review the role of ADAMTS metalloproteinases in osteoarthritis. From three different dimensions, we explain how ADAMTS participates in all the following aspects of osteoarthritis: ECM, cartilage degeneration, and synovial inflammation. Thus, ADAMTS may be a potential therapeutic target in osteoarthritis, and this article may render a theoretical basis for the study of new therapeutic methods for osteoarthritis.
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Affiliation(s)
- Ting Li
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Jie Peng
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Qingqing Li
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Yuan Shu
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Peijun Zhu
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Liang Hao
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Correspondence: ; Tel.: +86-13607008562; Fax: +86-86415785
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Hagemans FJ, Larsson S, Reijman M, Frobell RB, Struglics A, Meuffels DE. An Anterior Cruciate Ligament Rupture Increases Levels of Urine N-terminal Cross-linked Telopeptide of Type I Collagen, Urine C-terminal Cross-linked Telopeptide of Type II Collagen, Serum Aggrecan ARGS Neoepitope, and Serum Tumor Necrosis Factor-α. Am J Sports Med 2021; 49:3534-3543. [PMID: 34591687 PMCID: PMC8573615 DOI: 10.1177/03635465211042310] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND An anterior cruciate ligament (ACL) rupture results in an increased risk of developing knee osteoarthritis (OA) at an early age. Before clinical signs become apparent, the OA process has already been initiated. Therefore, it is important to look at the cascade of changes, such as the activity of cytokines and proteases, which might be associated with the later development of OA. PURPOSE To compare biomarker levels in patients with a recent ACL rupture with those in controls with a healthy knee and to monitor biomarker levels over 2 years after an ACL rupture. STUDY DESIGN Descriptive laboratory study. METHODS Patients were enrolled after an ACL tear was identified. Serum and urine samples were collected at the time of enrollment in the study (3-25 weeks after the injury) and then at 14 and 27 months after the injury between January 2009 and November 2010. Reference samples were obtained from participants with healthy knees. The following biomarkers were measured with immunological assays: aggrecan ARGS neoepitope (ARGS-aggrecan), tumor necrosis factor-α (TNF-α), interferon-γ, interleukin (IL)-8, IL-10, IL-13, N-terminal cross-linked telopeptide of type I collagen (NTX-I), and C-terminal cross-linked telopeptide of type II collagen (CTX-II). RESULTS Samples were collected from 152 patients with an acute ACL rupture, who had a median age of 25 years (interquartile range [IQR], 21-32 years). There were 62 urine reference samples (median age, 25 years [IQR, 22-36 years]) and 26 serum reference samples (median age, 35 years [IQR, 24-39 years]). At a median of 11 weeks (IQR, 7-17 weeks) after trauma, serum levels of both ARGS-aggrecan and TNF-α were elevated 1.5-fold (P < .001) compared with reference samples and showed a time-dependent decrease during follow-up. Urine NTX-I and CTX-II concentrations were elevated in an early phase after trauma (1.3-fold [P < .001] and 3.7-fold [P < .001], respectively) compared with reference samples, and CTX-II levels remained elevated compared with reference samples at 2-year follow-up. Strong correlations were found between serum ARGS-aggrecan, urinary NTX-I, and urinary CTX-II (rs = 0.57-0.68). CONCLUSION In the first few months after an ACL injury, there was a measurable increase in serum levels of ARGS-aggrecan and TNF-α as well as urine levels of NTX-I and CTX-II. These markers remained high compared with those of controls with healthy knees at 2-year follow-up.
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Affiliation(s)
- Frans J.A. Hagemans
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands,Department of Orthopaedics, Center for Orthopaedic Research Alkmaar, Noordwest Ziekenhuisgroep, Alkmaar, the Netherlands
| | - Staffan Larsson
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | - Max Reijman
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Richard B. Frobell
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | - Andre Struglics
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | - Duncan E. Meuffels
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands,Duncan E. Meuffels, MD, PhD, Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Doctor Molewaterplein 40, Rotterdam, 3015 GD, the Netherlands ()
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Black RM, Wang Y, Struglics A, Lorenzo P, Tillgren V, Rydén M, Grodzinsky AJ, Önnerfjord P. Proteomic analysis reveals dexamethasone rescues matrix breakdown but not anabolic dysregulation in a cartilage injury model. OSTEOARTHRITIS AND CARTILAGE OPEN 2020; 2. [PMID: 34322675 DOI: 10.1016/j.ocarto.2020.100099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Objectives In this exploratory study, we used discovery proteomics to follow the release of proteins from bovine knee articular cartilage in response to mechanical injury and cytokine treatment. We also studied the effect of the glucocorticoid Dexamethasone (Dex) on these responses. Design Bovine cartilage explants were treated with either cytokines alone (10 ng/ml TNFα, 20 ng/ml IL-6, 100 ng/ml sIL-6R), a single compressive mechanical injury, cytokines and injury, or no treatment, and cultured in serum-free DMEM supplemented with 1% ITS for 22 days. All samples were incubated with or without addition of 100 nM Dex. Mass spectrometry and western blot analyses were performed on medium samples for the identification and quantification of released proteins. Results We identified 500 unique proteins present in all three biological replicates. Many proteins involved in the catabolic response of cartilage degradation had increased release after inflammatory stress. Dex rescued many of these catabolic effects. The release of some proteins involved in anabolic and chondroprotective processes was inconsistent, indicating differential effects on processes that may protect cartilage from injury. Dex restored only a small fraction of these to the control state, while others had their effects exacerbated by Dex exposure. Conclusions We identified proteins that were released upon cytokine treatment which could be potential biomarkers of the inflammatory contribution to cartilage degradation. We also demonstrated the imperfect rescue of Dex on the effects of cartilage degradation, with many catabolic factors being reduced, while other anabolic or chondroprotective processes were not.
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Affiliation(s)
- Rebecca Mae Black
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yang Wang
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - André Struglics
- Department of Orthopaedics, Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, Lund, Sweden
| | - Pilar Lorenzo
- Department of Rheumatology and Molecular Skeletal Biology, Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, Lund, Sweden
| | - Viveka Tillgren
- Department of Rheumatology and Molecular Skeletal Biology, Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, Lund, Sweden
| | - Martin Rydén
- Department of Orthopaedics, Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, Lund, Sweden
| | - Alan J Grodzinsky
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Patrik Önnerfjord
- Department of Rheumatology and Molecular Skeletal Biology, Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, Lund, Sweden
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The Anti-ADAMTS-5 Nanobody ® M6495 Protects Cartilage Degradation Ex Vivo. Int J Mol Sci 2020; 21:ijms21175992. [PMID: 32825512 PMCID: PMC7503673 DOI: 10.3390/ijms21175992] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/28/2020] [Accepted: 08/02/2020] [Indexed: 12/19/2022] Open
Abstract
Osteoarthritis (OA) is associated with cartilage breakdown, brought about by ADAMTS-5 mediated aggrecan degradation followed by MMP-derived aggrecan and type II collagen degradation. We investigated a novel anti-ADAMTS-5 inhibiting Nanobody® (M6495) on cartilage turnover ex vivo. Bovine cartilage (BEX, n = 4), human osteoarthritic - (HEX, n = 8) and healthy—cartilage (hHEX, n = 1) explants and bovine synovium and cartilage were cultured up to 21 days in medium alone (w/o), with pro-inflammatory cytokines (oncostatin M (10 ng/mL) + TNFα (20 ng/mL) (O + T), IL-1α (10 ng/mL) or oncostatin M (50 ng/mL) + IL-1β (10 ng/mL)) with or without M6495 (1000−0.46 nM). Cartilage turnover was assessed in conditioned medium by GAG (glycosaminoglycan) and biomarkers of ADAMTS-5 driven aggrecan degradation (huARGS and exAGNxI) and type II collagen degradation (C2M) and formation (PRO-C2). HuARGS, exAGNxI and GAG peaked within the first culture week in pro-inflammatory stimulated explants. C2M peaked from day 14 by O + T and day 21 in co-culture experiments. M6495 dose dependently decreased huARGS, exAGNxI and GAG after pro-inflammatory stimulation. In HEX C2M was dose-dependently reduced by M6495. M6495 showed no effect on PRO-C2. M6495 showed cartilage protective effects by dose-dependently inhibiting ADAMTS-5 mediated cartilage degradation and inhibiting overall cartilage deterioration in ex vivo cartilage cultures.
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Rogerson FM, Last K, Golub SB, Gauci SJ, Stanton H, Bell KM, Fosang AJ. ADAMTS-9 in Mouse Cartilage Has Aggrecanase Activity That Is Distinct from ADAMTS-4 and ADAMTS-5. Int J Mol Sci 2019; 20:ijms20030573. [PMID: 30699963 PMCID: PMC6387038 DOI: 10.3390/ijms20030573] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/14/2019] [Accepted: 01/24/2019] [Indexed: 01/18/2023] Open
Abstract
A disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS)-4 and ADAMTS-5 are the principal aggrecanases in mice and humans; however, mice lacking the catalytic domain of both enzymes (TS-4/5∆cat) have no skeletal phenotype, suggesting there is an alternative aggrecanase for modulating normal growth and development in these mice. We previously identified aggrecanase activity that (a) cleaved at E↓G rather than E↓A bonds in the aggrecan core protein, and (b) was upregulated by retinoic acid but not IL-1α. The present study aimed to identify the alternative aggrecanase. Femoral head cartilage explants from TS-4/5∆cat mice were stimulated with IL-1α or retinoic acid and total RNA was analysed by microarray. In addition to ADAMTS-5 and matrix metalloproteinase (MMP)-13, which are not candidates for the novel aggrecanase, the microarray analyses identified MMP-11, calpain-5 and ADAMTS-9 as candidate aggrecanases upregulated by retinoic acid. When calpain-5 and MMP-11 failed to meet subsequent criteria, ADAMTS-9 emerged as the most likely candidate for the novel aggrecanase. Immunohistochemistry revealed ADAMTS-9 expression throughout the mouse growth plate and strong expression, particularly in the proliferative zone of the TS-4/5-∆cat mice. In conclusion, ADAMTS-9 has a novel specificity for aggrecan, cleaving primarily at E↓G rather than E↓A bonds in mouse cartilage. ADAMTS-9 might have more important roles in normal skeletal development compared with ADAMTS-4 and ADAMTS-5, which have key roles in joint pathology.
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Affiliation(s)
- Fraser M Rogerson
- University of Melbourne Department of Paediatrics, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
- Royal Melbourne Institute of Technology, 124 La Trobe Street, Melbourne, Victoria 3000, Australia.
| | - Karena Last
- University of Melbourne Department of Paediatrics, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
| | - Suzanne B Golub
- University of Melbourne Department of Paediatrics, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
| | - Stephanie J Gauci
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
| | - Heather Stanton
- University of Melbourne Department of Paediatrics, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
| | - Katrina M Bell
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
| | - Amanda J Fosang
- University of Melbourne Department of Paediatrics, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
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Struglics A, Larsson S, Pramhed A, Frobell R, Swärd P. Changes in synovial fluid and serum concentrations of cartilage oligomeric matrix protein over 5 years after anterior cruciate ligament rupture: an exploratory analysis in the KANON trial. Osteoarthritis Cartilage 2018; 26:1351-1358. [PMID: 29958916 DOI: 10.1016/j.joca.2018.06.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 05/31/2018] [Accepted: 06/12/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To monitor longitudinal changes of cartilage oligomeric matrix protein (COMP) in synovial fluid (sf) and serum (s) over 5 years after acute anterior cruciate ligament (ACL) rupture, and to compare results from two commercial COMP immunoassays. DESIGN Bio-fluids were collected from 121 patients on six occasions over 5 years after acute ACL injury, and from 25 knee healthy reference subjects. Concentrations of sf- and sCOMP were measured by AnaMar (sCOMP-Ana) and by BioVendor (sf- and sCOMP-Bio) immunoassays; other biomarkers were previously assessed. We used ANCOVA for group comparisons and linear mixed models for associations between biomarkers over 5-years with P < 0.05 considered a statistically significant difference or association. RESULTS Compared to the reference group, sfCOMP-Bio concentrations were 2-fold elevated within 6 weeks after ACL injury and remained elevated 5 years thereafter, whereas sCOMP-Bio and sCOMP-Ana concentrations were no different from reference levels at any time point. Over the 5-year period, there was an association between sCOMP-Bio and sCOMP-Ana concentrations, although neither sCOMP-Bio nor sCOMP-Ana associated with sfCOMP-Bio. sfCOMP-Bio associated with SF ARGS-aggrecan, urine type I and II collagens (uNTX-I and uCTX-II) and SF cytokines, while sCOMP-Bio associated inversely with uCTX-II, uNTX-I and SF cytokines. CONCLUSION The local process after an acute ACL injury generates increased SF COMP concentrations in the injured knee up to 5 years after injury. This response is not detected in serum. Discrepancies in associations between sCOMP measured by BioVendor and AnaMar immunoassays with other biomarkers indicate differences in detected COMP fragments.
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Affiliation(s)
- A Struglics
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Lund, Sweden.
| | - S Larsson
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Lund, Sweden.
| | | | - R Frobell
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Lund, Sweden.
| | - P Swärd
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Lund, Sweden.
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Huang X, Post JN, Zhong L, Leijten J, Larsson S, Karperien M, Struglics A. Dickkopf-related protein 1 and gremlin 1 show different response than frizzled-related protein in human synovial fluid following knee injury and in patients with osteoarthritis. Osteoarthritis Cartilage 2018. [PMID: 29526783 DOI: 10.1016/j.joca.2018.02.904] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To explore the involvement of the wingless-type MMTV integration site (WNT) and bone morphogenetic protein (BMP) antagonists dickkopf-related protein 1 (DKK1), frizzled-related protein (FRZB) and gremlin 1 (GREM1) in knee injury and osteoarthritis (OA). DESIGN The antagonists were immunoassayed in synovial fluid from a cross-sectional cohort of nine knee healthy reference subjects, patients with recent (0-77 days, n = 158) or old (1-37 years, n = 50) knee injuries, and OA (n = 22). Cartilage (ARGS-aggrecan, cartilage oligomeric matrix protein and C2C type II collagen) and other biomarkers were assessed in synovial fluid in a subset of samples. Statistical analysis was by Kendall's tau (τ) correlation, Mann-Whitney U test, and linear regression analysis. RESULTS Compared to references, median concentration of GREM1 (but not DKK1 and FRZB) was elevated 1.5-fold immediately after injury, and FRZB was reduced 1000-folds in OA. All three antagonists decreased with increasing time after injury as well as with increasing age, but the temporal change after injury was less accentuated for FRZB (peaked 8-22 days after injury) compared to that of DKK1 and GREM1 (peaked immediately after injury). In the recent injury group, there was a correlation between GREM1 and DKK1 (τ = 0.172); FRZB concentrations correlated with concentrations of cartilage biomarkers (τ between 0.257 and 0.369), while DKK1 and GREM1 were inversely correlated (τ between -0.177 and -0.217) with these markers. CONCLUSIONS Our results indicate separate roles for the antagonists, where DKK1 and GREM1 had similarities in response to injury and in OA, with a different response for FRZB.
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Affiliation(s)
- X Huang
- Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands.
| | - J N Post
- Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands.
| | - L Zhong
- Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands.
| | - J Leijten
- Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands.
| | - S Larsson
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Lund, Sweden.
| | - M Karperien
- Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands.
| | - A Struglics
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Lund, Sweden.
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Coculture of bovine cartilage with synovium and fibrous joint capsule increases aggrecanase and matrix metalloproteinase activity. Arthritis Res Ther 2017; 19:157. [PMID: 28679445 PMCID: PMC5498889 DOI: 10.1186/s13075-017-1318-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 05/05/2017] [Indexed: 02/02/2023] Open
Abstract
Background A hallmark of osteoarthritis is increased proteolytic cleavage of aggrecan. Cross talk between cartilage and the synovium + joint capsule (SJC) can drive cartilage degradation by activating proteases in both tissues. We investigated aggrecan proteolysis patterns in cartilage explants using a physiologically relevant explant model of joint injury combining cartilage mechanical compression and coincubation with SJC. Methods Bovine cartilage explants were untreated; coincubated with SJC; or subjected to mechanical injury and coincubated with SJC, mechanical injury alone, or mechanical injury and incubated with tumor necrosis factor-α (TNF-α). To compare the patterns of aggrecan proteolysis between 6 h and 16 days, release of sulfated glycosaminoglycans and specific proteolytic aggrecan fragments into medium or remaining in cartilage explants was measured by dimethylmethylene blue and Western blot analysis. Results Aggrecanase activity toward aggrecan was observed in all conditions, but it was directed toward the TEGE↓ARGS interglobular domain (IGD) site only when cartilage was coincubated with SJC or TNF-α. Matrix metalloproteinase (MMP) activity at the aggrecan IGD site (IPES↓FFGV) was not detected when cartilage was exposed to TNF-α (up to 6 days), but it was in all other conditions. Compared with when bovine cartilage was left untreated or subjected to mechanical injury alone, additional aggrecan fragment types were released into medium and proteolysis of aggrecan started at an earlier time when SJC was present. Conclusions Indicative of different proteolytic pathways for aggrecan degradation, the SJC increases both aggrecanase and MMP activity toward aggrecan, whereas TNF-α inhibits MMP activity against the IGD of aggrecan. Electronic supplementary material The online version of this article (doi:10.1186/s13075-017-1318-9) contains supplementary material, which is available to authorized users.
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Struglics A, Okroj M, Swärd P, Frobell R, Saxne T, Lohmander LS, Blom AM. The complement system is activated in synovial fluid from subjects with knee injury and from patients with osteoarthritis. Arthritis Res Ther 2016; 18:223. [PMID: 27716448 PMCID: PMC5052889 DOI: 10.1186/s13075-016-1123-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 09/16/2016] [Indexed: 01/13/2023] Open
Abstract
Background The complement system is suggested to be involved in the pathogenesis of osteoarthritis (OA), and proinflammatory cytokines may play a role in OA development by inducing proteases. The association between complement factors, cytokines and OA has not been investigated. The aim of the present study was to explore the involvement of the complement system after knee trauma and in OA. Methods C4d, C3bBbP and soluble terminal complement complex (sTCC) resulting from complement activation were immunoassayed in synovial fluid from subjects with healthy knees (reference), OA, rheumatoid arthritis (RA; positive control), pyrophosphate arthritis (PPA; positive control) and knee injury; other biomarkers were previously assessed. Magnetic resonance imaging was used to assess joint injuries. Results Compared with levels in the reference group, the median concentrations of C4d, C3bBbP and sTCC in the OA, RA, PPA and knee injury groups were 2- to 34-fold increased (p < 0.001 to p = 0.044). For the knee injury group, the median concentrations of C4d, C3bBbP and sTCC were 5- to 12-fold increased (p < 0.001) at the day of injury; after 3–12 weeks, C3bBbP and sTCC concentrations were similar to reference levels; and C4d was still increased several years after injury. In the 0–12 weeks period after injury, the concentrations of C4d, C3bBbP and sTCC correlated positively with levels of interleukin (IL)-1β, IL-6 and tumour necrosis factor α (rs range 0.232–0.547); none of the measured complement factors correlated with proteolytic fragments of aggrecan or cartilage oligomeric matrix protein. Knees with osteochondral fracture, with or without disrupted cortical bone, had higher concentrations of C4d (p = 0.014, p = 0.004) and sTCC (p = 0.004, p < 0.001) compared with knees without fractures. Conclusions The complement system is activated in OA and after knee injury. Following knee injury, this activation is instant and associated with inflammation as well as with the presence of osteochondral fractures. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-1123-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- André Struglics
- Department of Clinical Sciences Lund, Orthopaedics, Lund University, Faculty of Medicine, BMC C12, SE-221 84, Lund, Sweden.
| | - Marcin Okroj
- Department of Translational Medicine, Division of Medical Protein Chemistry, Lund University, Faculty of Medicine, Lund, Sweden.,Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology UG-MUG, Medical University of Gdańsk, Gdańsk, Poland
| | - Per Swärd
- Department of Clinical Sciences Lund, Orthopaedics, Lund University, Faculty of Medicine, BMC C12, SE-221 84, Lund, Sweden
| | - Richard Frobell
- Department of Clinical Sciences Lund, Orthopaedics, Lund University, Faculty of Medicine, BMC C12, SE-221 84, Lund, Sweden
| | - Tore Saxne
- Department of Clinical Sciences Lund, Rheumatology, Lund University, Faculty of Medicine, Lund, Sweden
| | - L Stefan Lohmander
- Department of Clinical Sciences Lund, Orthopaedics, Lund University, Faculty of Medicine, BMC C12, SE-221 84, Lund, Sweden
| | - Anna M Blom
- Department of Translational Medicine, Division of Medical Protein Chemistry, Lund University, Faculty of Medicine, Lund, Sweden
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Punzi L, Galozzi P, Luisetto R, Favero M, Ramonda R, Oliviero F, Scanu A. Post-traumatic arthritis: overview on pathogenic mechanisms and role of inflammation. RMD Open 2016; 2:e000279. [PMID: 27651925 PMCID: PMC5013366 DOI: 10.1136/rmdopen-2016-000279] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/10/2016] [Accepted: 08/19/2016] [Indexed: 02/06/2023] Open
Abstract
Post-traumatic arthritis (PTA) develops after an acute direct trauma to the joints. PTA causes about 12% of all osteoarthritis cases, and a history of physical trauma may also be found in patients with chronic inflammatory arthritis. Symptoms include swelling, synovial effusion, pain and sometimes intra-articular bleeding. Usually, PTA recoveries spontaneously, but the persistence of symptoms after 6 months may be considered pathological and so-called chronic PTA. A variety of molecular, mechanobiological and cellular events involved in the pathogenesis and the progression of PTA have been identified. The activation of inflammatory mechanisms during the PTA acute phase appears to play a critical role in the chronic disease onset. Human studies and experimental models have revealed that a series of inflammatory mediators are released in synovial fluid immediately after the joint trauma. These molecules have been proposed as markers of disease and as a potential target for the development of specific and preventative interventions. Currently, chronic PTA cannot be prevented, although a large number of agents have been tested in preclinical studies. Given the relevance of inflammatory reaction, anticytokines therapy, in particular the inhibition of interleukin 1 (IL-1), seems to be the most promising strategy. At the present time, intra-articular injection of IL-1 receptor antagonist is the only anticytokine approach that has been used in a human study of PTA. Despite the fact that knowledge in this area has increased in the past years, the identification of more specific disease markers and new therapeutic opportunities are needed.
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Affiliation(s)
- Leonardo Punzi
- Rheumatology Unit, Department of Medicine-DIMED , University of Padova , Padova , Italy
| | - Paola Galozzi
- Rheumatology Unit, Department of Medicine-DIMED , University of Padova , Padova , Italy
| | - Roberto Luisetto
- Department of Surgical Oncological and Gastroenterological Sciences , University of Padova , Padova , Italy
| | - Marta Favero
- Rheumatology Unit, Department of Medicine-DIMED, University of Padova, Padova, Italy; Laboratory of Immunorheumatology and Tissue Regeneration, Rizzoli Orthopedic Research Institute, Bologna, Italy
| | - Roberta Ramonda
- Rheumatology Unit, Department of Medicine-DIMED , University of Padova , Padova , Italy
| | - Francesca Oliviero
- Rheumatology Unit, Department of Medicine-DIMED , University of Padova , Padova , Italy
| | - Anna Scanu
- Rheumatology Unit, Department of Medicine-DIMED , University of Padova , Padova , Italy
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12
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Wasilko SM, Tourville TW, DeSarno MJ, Slauterbeck JR, Johnson RJ, Struglics A, Beynnon BD. Relationship between synovial fluid biomarkers of articular cartilage metabolism and the patient's perspective of outcome depends on the severity of articular cartilage damage following ACL trauma. J Orthop Res 2016; 34:820-7. [PMID: 26497486 PMCID: PMC6533635 DOI: 10.1002/jor.23084] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 10/06/2015] [Indexed: 02/04/2023]
Abstract
Anterior cruciate ligament (ACL) trauma often occurs in combination with injury to the articular cartilage of the knee, this can result in earlier radiographic evidence of post traumatic osteoarthritis (OA) of the knee compared to the contralateral, ACL intact knee; however, the biomechanical and biological mechanisms associated with the onset and progression of this disease are not understood. We sought to gain insight into the mechanisms by determining the relationship between articular cartilage injury associated with ACL trauma and the expression of synovial fluid biomarkers of articular cartilage metabolism, and to evaluate the relationship between these biomarkers and the patient's perspective of the outcomes. Synovial fluid samples were acquired from 39 ACL injured subjects at an average of 10 weeks after injury, and 32 control subjects with normal knees (documented with clinical exam and MRI assessment). Subjects in the ACL-injured group were classified as low-risk for future OA if they displayed an International Cartilage Repair Society (ICRS) Grade 2 articular cartilage lesion or less and high-risk for future OA if they had an ICRS Grade 3A articular cartilage lesion. The patient's perspective of the injury was evaluated with the Knee Injury and Osteoarthritis Outcomes Score (KOOS). There were no significant differences in mean concentrations of the markers of type II collagen metabolism (CPII, C2C, and C1,2C) or the aggrecan breakdown Alanine-Arginine-Glycine-Serine (ARGS) -fragment between control subjects and the subjects in the low- and high-risk groups (p-value range: 0.80-0.43). Associations between ARGS-aggrecan concentration and KOOS subscales of symptoms and pain were significantly different between the low- and high-risk groups (p = 0.03 and p = 0.01, respectively). Likewise, there was strong evidence in support of an association between the markers of type II collagen metabolism (C1,2C and CPII concentrations) and the KOOS subscale of pain between the low- and high-risk groups (p = 0.051 and 0.077, correspondingly). In ACL injured subjects with concomitant Grade 3A articular cartilage injuries, concentrations of synovial fluid ARGS-aggrecan were directly associated with improvements in KOOS symptoms and pain. These findings suggest the possible involvement of ARGS-aggrecan in a localized tissue repair response involving an increase in aggrecan turnover following severe knee trauma. © 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 34:820-827, 2016.
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Affiliation(s)
- Scott M. Wasilko
- Department of Orthopaedics & Rehabilitation, University of Vermont College of Medicine, Burlington, Vermont
| | - Timothy W. Tourville
- Department of Orthopaedics & Rehabilitation, University of Vermont College of Medicine, Burlington, Vermont
| | - Michael J. DeSarno
- Department of Medical Biostatistics, University of Vermont, Burlington, Vermont
| | - James R. Slauterbeck
- Department of Orthopaedics & Rehabilitation, University of Vermont College of Medicine, Burlington, Vermont
| | - Robert J. Johnson
- Department of Orthopaedics & Rehabilitation, University of Vermont College of Medicine, Burlington, Vermont
| | - André Struglics
- Department of Orthopaedics, Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Bruce D. Beynnon
- Department of Orthopaedics & Rehabilitation, University of Vermont College of Medicine, Burlington, Vermont
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13
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Bochyńska AI, Hannink G, Grijpma DW, Buma P. Tissue adhesives for meniscus tear repair: an overview of current advances and prospects for future clinical solutions. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:85. [PMID: 26970767 PMCID: PMC4789195 DOI: 10.1007/s10856-016-5694-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
Menisci are crucial structures in the knee joint as they play important functions in load transfer, maintaining joint stability and in homeostasis of articular cartilage. Unfortunately, ones of the most frequently occurring knee injuries are meniscal tears. Particularly tears in the avascular zone of the meniscus usually do not heal spontaneously and lead to pain, swelling and locking of the knee joint. Eventually, after a (partial) meniscectomy, they will lead to osteoarthritis. Current treatment modalities to repair tears and by that restore the integrity of the native meniscus still carry their drawbacks and a new robust solution is desired. A strong tissue adhesive could provide such a solution and could potentially improve on sutures, which are the current gold standard. Moreover, a glue could serve as a carrier for biological compounds known to enhance tissue healing. Only few tissue adhesives, e.g., Dermabond(®) and fibrin glue, are already successfully used in clinical practice for other applications, but are not considered suitable for gluing meniscus tissue due to their sub-optimal mechanical properties or toxicity. There is a growing interest and research field focusing on the development of novel polymer-based tissue adhesives, but up to now, there is no material specially designed for the repair of meniscal tears. In this review, we discuss the current clinical gold standard treatment of meniscal tears and present an overview of new developments in this field. Moreover, we discuss the properties of different tissue adhesives for their potential use in meniscal tear repair. Finally, we formulate recommendations regarding the design criteria of material properties and adhesive strength for clinically applicable glues for meniscal tears.
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Affiliation(s)
- A I Bochyńska
- Orthopaedic Research Laboratory, Department of Orthopaedics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
- Department of Biomaterials Science and Technology, MIRA Institute, University of Twente, Enschede, The Netherlands
| | - G Hannink
- Orthopaedic Research Laboratory, Department of Orthopaedics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
| | - D W Grijpma
- Department of Biomaterials Science and Technology, MIRA Institute, University of Twente, Enschede, The Netherlands
- Department of Biomedical Engineering, W.J. Kolff Institute, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - P Buma
- Orthopaedic Research Laboratory, Department of Orthopaedics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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14
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Kosasih HJ, Last K, Rogerson FM, Golub SB, Gauci SJ, Russo VC, Stanton H, Wilson R, Lamande SR, Holden P, Fosang AJ. A Disintegrin and Metalloproteinase with Thrombospondin Motifs-5 (ADAMTS-5) Forms Catalytically Active Oligomers. J Biol Chem 2015; 291:3197-208. [PMID: 26668318 DOI: 10.1074/jbc.m115.704817] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Indexed: 11/06/2022] Open
Abstract
The metalloproteinase ADAMTS-5 (A disintegrin and metalloproteinase with thrombospondin motifs) degrades aggrecan, a proteoglycan essential for cartilage structure and function. ADAMTS-5 is the major aggrecanase in mouse cartilage, and is also likely to be the major aggrecanase in humans. ADAMTS-5 is a multidomain enzyme, but the function of the C-terminal ancillary domains is poorly understood. We show that mutant ADAMTS-5 lacking the catalytic domain, but with a full suite of ancillary domains inhibits wild type ADAMTS activity, in vitro and in vivo, in a dominant-negative manner. The data suggest that mutant ADAMTS-5 binds to wild type ADAMTS-5; thus we tested the hypothesis that ADAMTS-5 associates to form oligomers. Co-elution, competition, and in situ PLA experiments using full-length and truncated recombinant ADAMTS-5 confirmed that ADAMTS-5 molecules interact, and showed that the catalytic and disintegrin-like domains support these intermolecular interactions. Cross-linking experiments revealed that recombinant ADAMTS-5 formed large, reduction-sensitive oligomers with a nominal molecular mass of ∼ 400 kDa. The oligomers were unimolecular and proteolytically active. ADAMTS-5 truncates comprising the disintegrin and/or catalytic domains were able to competitively block full-length ADAMTS-5-mediated aggrecan cleavage, measured by production of the G1-EGE(373) neoepitope. These results show that ADAMTS-5 oligomerization is required for full aggrecanase activity, and they provide evidence that blocking oligomerization inhibits ADAMTS-5 activity. The data identify the surface provided by the catalytic and disintegrin-like domains of ADAMTS-5 as a legitimate target for the design of aggrecanase inhibitors.
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Affiliation(s)
- Hansen J Kosasih
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Karena Last
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Fraser M Rogerson
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Suzanne B Golub
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Stephanie J Gauci
- the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Vincenzo C Russo
- the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Heather Stanton
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | | | - Shireen R Lamande
- the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Paul Holden
- the Department of Orthopaedics & Rehabilitation, Oregon Health & Science University, Portland, Oregon 97239, and
| | - Amanda J Fosang
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia,
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15
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Tourville TW, Poynter ME, DeSarno MJ, Struglics A, Beynnon BD. Relationship between synovial fluid ARGS-aggrecan fragments, cytokines, MMPs, and TIMPs following acute ACL injury: A cross-sectional study. J Orthop Res 2015; 33:1796-803. [PMID: 26123869 PMCID: PMC5508558 DOI: 10.1002/jor.22961] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 05/27/2015] [Indexed: 02/04/2023]
Abstract
Severe knee trauma, such as an ACL disruption, produces aggrecan degradation as evidenced by elevated synovial fluid (SF) N-terminal (393) Alanine-Arginine-Glycine-Serine (ARGS) neoepitope (or ARGS-aggrecan) and is associated with inflammatory activity soon after injury. However, it is not known if this process persists for a substantial time interval following the initial trauma. The purpose of this study was to evaluate relationships between SF ARGS concentrations and an array of cytokines, matrix metalloproteases (MMPs), and tissue inhibitor of metalloproteases (TIMPs) during the initial 6 months following ACL rupture. SF samples from 67 ACL-injured subjects (29 women) were analyzed within 6 months of injury (18-155 days), immediately prior to surgical ACL reconstruction. Relationships between ARGS and individual analyte concentrations, as well as MMP/TIMP ratios were evaluated. Statistically significant relationships were found between ARGS and basic fibroblast growth factor (FGF2) (p=0.03) and TIMP-3 (p=0.01). Our findings suggest that FGF2, considered to be primarily catabolic in articular cartilage, is not downregulated as ARGS concentration declines over time since injury. In addition, these results support the hypothesis that an upregulation of TIMP-3, the primary aggrecanase inhibitor, is elicited in response to increased aggrecan degradation, which may inhibit further cleavage.
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Affiliation(s)
- Timothy W. Tourville
- Department of Orthopaedics and Rehabilitation, University of Vermont College of Medicine, Burlington, Vermont
| | - Matthew E. Poynter
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vermont
| | - Michael J. DeSarno
- Deptartment of Medical Biostatistics, University of Vermont College of Medicine, Burlington, Vermont
| | - André Struglics
- Department of Orthopedics, Lund University, Clinical Sciences Lund, Lund, Sweden
| | - Bruce D. Beynnon
- Department of Orthopaedics and Rehabilitation, University of Vermont College of Medicine, Burlington, Vermont
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16
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Haller JM, Swearingen CA, Partridge D, McFadden M, Thirunavukkarasu K, Higgins TF. Intraarticular Matrix Metalloproteinases and Aggrecan Degradation Are Elevated After Articular Fracture. Clin Orthop Relat Res 2015; 473:3280-8. [PMID: 26162411 PMCID: PMC4562930 DOI: 10.1007/s11999-015-4441-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 06/29/2015] [Indexed: 01/31/2023]
Abstract
BACKGROUND Posttraumatic osteoarthritis (OA) is a variant of OA that can develop after articular injury. Although the mechanism(s) of posttraumatic OA are uncertain, the presence and impact of postinjury proteolytic enzymes on articular cartilage remain unknown. To our knowledge, there are no studies that evaluate the presence of matrix metalloproteinases (MMPs) or aggrecan degradation after articular fracture. QUESTIONS/PURPOSES (1) Are MMP concentrations and aggrecan degradation elevated after intraarticular fracture? (2) Are MMP concentrations and aggrecan degradation greater in high-energy injuries compared with low-energy injuries? (3) Do the concentrations of these biomarkers remain elevated at a secondary aspiration? METHODS Between December 2011 and June 2013, we prospectively enrolled patients older than 18 years of age with acute tibial plateau fracture. Exclusion criteria included age older than 60 years, preexisting knee OA, injury greater than 24 hours before evaluation, contralateral knee injury, history of autoimmune disease, open fracture, and non-English-speaking patients. During the enrollment period, we enrolled 45 of the 91 (49%) tibial plateau fractures treated at our facility. Knee synovial fluid aspirations were obtained from both the injured and uninjured knees; two patients received aspirations in the emergency department and the remaining patients received aspirations in the operating room. Twenty patients who underwent spanning external fixator followed by definitive fixation were aspirated during both surgical procedures. MMP-1, -2, -3, -7, -9, -10, -12, and -13 concentrations were quantified using multiplex assays. Aggrecan degradation was quantified using sandwich enzyme-linked immunosorbent assay. RESULTS There were higher concentrations of MMP-1 (3.89 ng/mL [95% confidence interval {CI}, 2.37-6.37] versus 0.37 ng/mL [95% CI, 0.23-0.61], p < 0.001), MMP-3 (457.35 ng/mL [95% CI, 274.5-762.01] versus 129.17 ng/mL [95% CI, 77.01-216.66], p < 0.001), MMP-9 (6.52 ng/mL [95% CI, 3.86-11.03] versus 0.96 ng/mL [95% CI, 0.56-1.64], p < 0.001), MMP-10 (0.52 ng/mL [95% CI, 0.40-0.69] versus 0.23 ng/mL [95% CI, 0.17-0.30], p < 0.001), and MMP-12 (0.18 ng/mL [95% CI, 0.14-0.23] versus 0.10 ng/mL [95% CI, 0.0.081-0.14], p = 0.005) in injured knees compared with uninjured knees. There was not a detectable difference in MMP concentrations or aggrecan degradation between high- and low-energy injuries. MMP-1 (53.25 versus 3.89 ng/mL, p < 0.001), MMP-2 (76.04 versus 0.37 ng/mL, p < 0.001), MMP-3 (1250.62 versus 457.35 ng/mL, p = 0.002), MMP-12 (1.37 versus 0.18, p < 0.001), MMP-13 (0.98 versus 0.032 ng/mL, p < 0.001), and aggrecan degradation (0.58 versus 0.053, p < 0.001) were increased at the second procedure (mean, 9.5 days; range, 3-21 days) as compared with the initial procedure. CONCLUSIONS Because MMPs and aggrecan degradation are elevated after articular fracture, future studies are necessary to evaluate the impact of elevated MMPs and aggrecan degradation on human articular cartilage. CLINICAL RELEVANCE If further clinical followup can demonstrate a relationship between posttraumatic OA and elevated MMPs and aggrecan degradation, they may provide potential for therapeutic targets to prevent or delay the destruction of the joint. Additionally, these markers may offer prognostic information for patients.
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Affiliation(s)
- Justin M. Haller
- />Department of Orthopaedics, University of Utah School of Medicine, 590 Wakara Way, Salt Lake City, UT 84108 USA
| | - Craig A. Swearingen
- />Musculoskeletal Research, Lilly Research Labs, Eli Lilly and Company, Indianapolis, IN USA
| | - Deveree Partridge
- />Department of Orthopaedics, University of Utah School of Medicine, 590 Wakara Way, Salt Lake City, UT 84108 USA
| | - Molly McFadden
- />Division of Epidemiology, Department of Internal Medicine, University of Utah, Salt Lake City, UT USA
| | - Kannan Thirunavukkarasu
- />Musculoskeletal Research, Lilly Research Labs, Eli Lilly and Company, Indianapolis, IN USA
| | - Thomas F. Higgins
- />Department of Orthopaedics, University of Utah School of Medicine, 590 Wakara Way, Salt Lake City, UT 84108 USA
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Ismail HM, Yamamoto K, Vincent TL, Nagase H, Troeberg L, Saklatvala J. Interleukin-1 Acts via the JNK-2 Signaling Pathway to Induce Aggrecan Degradation by Human Chondrocytes. Arthritis Rheumatol 2015; 67:1826-36. [PMID: 25776267 DOI: 10.1002/art.39099] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Accepted: 02/26/2015] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Aggrecan enables articular cartilage to bear load and resist compression. Aggrecan loss occurs early in osteoarthritis and rheumatoid arthritis and can be induced by inflammatory cytokines such as interleukin-1 (IL-1). IL-1 induces cleavage of specific aggrecans characteristic of the ADAMTS proteinases. The aim of this study was to identify the intracellular signaling pathways by which IL-1 causes aggrecan degradation by human chondrocytes and to investigate how aggrecanase activity is controlled by chondrocytes. METHODS We developed a cell-based assay combining small interfering RNA (siRNA)-induced knockdown with aggrecan degradation assays. Human articular chondrocytes were overlaid with bovine aggrecan after transfection with siRNAs against molecules of the IL-1 signaling pathway. After IL-1 stimulation, released aggrecan fragments were detected with AGEG and ARGS neoepitope antibodies. Aggrecanase activity and tissue inhibitor of metalloproteinases 3 levels were measured by enzyme-linked immunosorbent assay. Low-density lipoprotein receptor-related protein 1 (LRP-1) shedding was analyzed by Western blotting. RESULTS ADAMTS-5 is a major aggrecanase in human chondrocytes, regulating aggrecan degradation in response to IL-1. The tumor necrosis factor receptor-associated 6 (TRAF-6)/transforming growth factor β-activated kinase 1 (TAK-1)/MKK-4 signaling axis is essential for IL-1-induced aggrecan degradation, while NF-κB is not. Of the 3 MAPKs (ERK, p38, and JNK), only JNK-2 showed a significant role in aggrecan degradation. Chondrocytes constitutively secreted aggrecanase, which was continuously endocytosed by LRP-1, keeping the extracellular level of aggrecanase low. IL-1 induced aggrecanase activity in the medium in a JNK-2-dependent manner, possibly by reducing aggrecanase endocytosis, because IL-1 caused JNK-2-dependent shedding of LRP-1. CONCLUSION The signaling axis TRAF-6/TAK-1/MKK-4/JNK-2 mediates IL-1-induced aggrecanolysis. The level of aggrecanase is controlled by its endocytosis, which may be reduced upon IL-1 stimulation because of LRP-1 shedding.
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Affiliation(s)
- Heba M Ismail
- Kennedy Institute of Rheumatology and University of Oxford, Oxford, UK
| | - Kazuhiro Yamamoto
- Kennedy Institute of Rheumatology and University of Oxford, Oxford, UK
| | - Tonia L Vincent
- Kennedy Institute of Rheumatology and University of Oxford, Oxford, UK
| | - Hideaki Nagase
- Kennedy Institute of Rheumatology and University of Oxford, Oxford, UK
| | - Linda Troeberg
- Kennedy Institute of Rheumatology and University of Oxford, Oxford, UK
| | - Jeremy Saklatvala
- Kennedy Institute of Rheumatology and University of Oxford, Oxford, UK
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18
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Kumahashi N, Swärd P, Larsson S, Lohmander LS, Frobell R, Struglics A. Type II collagen C2C epitope in human synovial fluid and serum after knee injury--associations with molecular and structural markers of injury. Osteoarthritis Cartilage 2015; 23:1506-12. [PMID: 25937025 DOI: 10.1016/j.joca.2015.04.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Revised: 03/23/2015] [Accepted: 04/21/2015] [Indexed: 02/02/2023]
Abstract
PURPOSE Investigate in a cross-sectional study time-dependent changes of synovial fluid type II collagen epitope C2C concentrations after knee injury and correlate to other joint injury biomarkers. METHODS Synovial fluid samples were aspirated between 0 days and 7 years after injury (n = 235). Serum was collected from 71 of the knee injured patients. Synovial fluid from 8 knee-healthy subjects was used as reference. C2C was quantified by immunoassay and structural injury was determined from magnetic resonance images (MRI) of the injured knee acquired 1-38 days after injury (n = 98). Additional joint injury biomarker results were from earlier investigations of the same samples. RESULTS Synovial fluid C2C concentrations were higher in injured knees than in knees of reference subjects from 1 day up to 7 years after injury. C2C concentrations in synovial fluid and serum were correlated (r = 0.403, P < 0.001). In synovial fluid from subjects early after injury (0-33 days), C2C concentrations were correlated with cross-linked C-telopeptide of type II collagen (r = 0.444, P = 0.003), ARGS-aggrecan (r = 0.337, P < 0.001), osteocalcin (r = 0.345, P < 0.001), osteopontin (r = 0.371, P < 0.001) and IL-8 (r = -0.385, P < 0.001), but not with structural joint injury as visualized on MRI. CONCLUSION The increased levels of synovial fluid C2C after injury, together with the associations seen with several other injury-related biomarkers, suggest that an acute knee injury is associated with an immediate and sustained local degradation of type II collagen.
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Affiliation(s)
- N Kumahashi
- Orthopaedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden; Department of Orthopaedics, Shimane University, Izumo, Japan.
| | - P Swärd
- Orthopaedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - S Larsson
- Orthopaedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - L S Lohmander
- Orthopaedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden; Research Unit for Musculoskeletal Function and Physiotherapy, University of Southern Denmark, Denmark; Department of Orthopaedics and Traumatology, University of Southern Denmark, Denmark
| | - R Frobell
- Orthopaedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - A Struglics
- Orthopaedics, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
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Struglics A, Larsson S, Kumahashi N, Frobell R, Lohmander LS. Changes in Cytokines and Aggrecan ARGS Neoepitope in Synovial Fluid and Serum and in C-Terminal Crosslinking Telopeptide of Type II Collagen and N-Terminal Crosslinking Telopeptide of Type I Collagen in Urine Over Five Years After Anterior Cruciate Ligame. Arthritis Rheumatol 2015; 67:1816-25. [DOI: 10.1002/art.39146] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Accepted: 03/31/2015] [Indexed: 01/12/2023]
Affiliation(s)
| | | | - Nobuyuki Kumahashi
- Lund University, Lund, Sweden, and Shimane University School of Medicine; Izumo Japan
| | | | - L. Stefan Lohmander
- Lund University, Lund, Sweden, and University of Southern Denmark; Odense Denmark
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Åhlén M, Roshani L, Lidén M, Struglics A, Rostgård-Christensen L, Kartus J. Inflammatory cytokines and biomarkers of cartilage metabolism 8 years after anterior cruciate ligament reconstruction: results from operated and contralateral knees. Am J Sports Med 2015; 43:1460-6. [PMID: 25787698 DOI: 10.1177/0363546515574059] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Patients who sustain an acute anterior cruciate ligament (ACL) rupture are at increased risk to develop posttraumatic arthritis (PTA) in the injured knee whether the ACL is reconstructed or treated nonoperatively. Inflammatory cytokines and cartilage degradation biomarkers are elevated at the time of acute injury and postoperatively. This suggests that one mechanism for PTA may be an inflammatory degradative process initiated on the acute injury and sustained for some length of time independent of whether adequate joint stability is restored. HYPOTHESIS Inflammatory cytokines and biomarkers of cartilage degradation are elevated in the synovial fluid several years after reconstruction of the ACL, indicating an ongoing imbalance between extracellular matrix destruction and repair. STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS In 11 patients who had undergone ACL reconstruction 8 years earlier, knee synovial fluid was aspirated from the operated knee and the contralateral nonoperated knee. The synovial fluid was analyzed for interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF)-α, sulfated glycosaminoglycans (sGAG), aggrecan neoepitope fragment (ARGS-aggrecan), and cartilage oligomeric matrix protein (COMP). At follow-up, the patients underwent bilateral weightbearing radiographs and bilateral MRIs of their knees. RESULTS No significant differences between the operated and the contralateral knee were found for the synovial fluid concentrations of IL-1β, IL-6, TNF-α, sGAG, ARGS-aggrecan, or COMP. There were significantly more radiographically visible osteoarthritic changes in the operated knees compared with the contralateral knees. MRIs revealed that all grafts and all contralateral ACLs were intact and, furthermore, that there was significantly more meniscal and cartilage damage in the index knees than the contralateral knees. CONCLUSION Eight years after ACL reconstruction, there were no significant differences in inflammatory cytokines and biomarkers for cartilage degeneration between the nonoperated and the ACL-reconstructed knee, even though there were more osteoarthritic changes and meniscal and cartilage damage in the operated knee, as seen on weightbearing radiographs and MRI.
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Affiliation(s)
- Martina Åhlén
- Department of Hand Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Leyla Roshani
- Department of Research and Development, NU-Hospital Group, Trollhättan/Uddevalla, Sweden
| | - Mattias Lidén
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Department of Plastic Surgery, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg, Sweden
| | - André Struglics
- Department of Orthopedics, Clinical Sciences, Lund University, Lund, Sweden
| | | | - Jüri Kartus
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Department of Research and Development, NU-Hospital Group, Trollhättan/Uddevalla, Sweden Department of Orthopaedics, NU-Hospital Group, Trollhättan/Uddevalla, Sweden
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21
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Khairnar A, Marchand F, Vidal A, Etienne M, Miladi I, Auzeloux P, Cachin F, Eschalier A, Chezal JM, Ardid D, Miot-Noirault E. 99mTc-NTP 15-5 Imaging for Cartilage Involvement in Experimental Rheumatoid Arthritis: Comparison with Routinely Used Molecular Imaging Methods and Sensitivity to Chronic Nonsteroidal Antiinflammatory Drug Treatment. J Nucl Med 2015; 56:798-804. [PMID: 25840975 DOI: 10.2967/jnumed.114.151415] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 02/10/2015] [Indexed: 01/01/2023] Open
Abstract
UNLABELLED This study determined, using the intraarticular complete Freund adjuvant arthritis mice model, whether the radiotracer (99m)Tc-N-(triethylammonium)-3-propyl-[15]ane-N5 ((99m)Tc-NTP 15-5) targeting proteoglycans has a pathophysiologic validity for in vivo imaging of rheumatoid arthritis (RA) and its response to chronic nonsteroidal antiinflammatory drugs. METHODS We investigated the time course of cartilage remodeling by (99m)Tc-NTP 15-5 scintigraphy, bone damages by (99m)Tc-hydroxymethylene diphosphonate imaging, inflammation by (18)F-FDG PET, and joint proteoglycan content and pain behavior in animals, without and with meloxicam treatment. Paw circumference, thermal pain behavior, and histology as well as proteoglycan content of the whole joint were determined. RESULTS (99m)Tc-NTP 15-5 showed specific tracer accumulation within RA joints, with a significant increase in scintigraphic ratio observed in RA versus shams from day 3 to day 28. (18)F-FDG evidenced uptake in RA joints from day 15 to day 29. Animals treated with meloxicam (5 mg/kg) exhibited a dose-dependent decrease in both (99m)Tc-NTP 15-5 and (18)F-FDG uptake ratios versus saline-treated animals. (99m)Tc-hydroxymethylene diphosphonate bone scans were only positive at day 14 in RA versus shams, with a significant effect of meloxicam. An increase in proteoglycans of RA joint and thermal pain behavior were observed and were dose-dependently reduced by meloxicam. CONCLUSION These experimental results bring data in favor of the (99m)Tc-NTP 15-5 radiotracer for assessing, in vivo, cartilage remodeling in RA that could be used to monitor therapy.
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Affiliation(s)
- Amit Khairnar
- Clermont Université, Université d'Auvergne, Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, Clermont-Ferrand, France INSERM, U 990, Clermont-Ferrand, France Clermont Université, Université d'Auvergne, Pharmacologie Fondamentale et Clinique de la Douleur, Clermont-Ferrand, France INSERM U1107 NEURO-DOL, Clermont-Ferrand, France; and
| | - Fabien Marchand
- Clermont Université, Université d'Auvergne, Pharmacologie Fondamentale et Clinique de la Douleur, Clermont-Ferrand, France INSERM U1107 NEURO-DOL, Clermont-Ferrand, France; and
| | - Aurélien Vidal
- Clermont Université, Université d'Auvergne, Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, Clermont-Ferrand, France INSERM, U 990, Clermont-Ferrand, France
| | - Monique Etienne
- Clermont Université, Université d'Auvergne, Pharmacologie Fondamentale et Clinique de la Douleur, Clermont-Ferrand, France INSERM U1107 NEURO-DOL, Clermont-Ferrand, France; and
| | - Imen Miladi
- Clermont Université, Université d'Auvergne, Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, Clermont-Ferrand, France INSERM, U 990, Clermont-Ferrand, France
| | - Philippe Auzeloux
- Clermont Université, Université d'Auvergne, Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, Clermont-Ferrand, France INSERM, U 990, Clermont-Ferrand, France
| | - Florent Cachin
- Clermont Université, Université d'Auvergne, Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, Clermont-Ferrand, France INSERM, U 990, Clermont-Ferrand, France CLCC Jean Perrin, Clermont-Ferrand, France
| | - Alain Eschalier
- Clermont Université, Université d'Auvergne, Pharmacologie Fondamentale et Clinique de la Douleur, Clermont-Ferrand, France INSERM U1107 NEURO-DOL, Clermont-Ferrand, France; and
| | - Jean-Michel Chezal
- Clermont Université, Université d'Auvergne, Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, Clermont-Ferrand, France INSERM, U 990, Clermont-Ferrand, France
| | - Denis Ardid
- Clermont Université, Université d'Auvergne, Pharmacologie Fondamentale et Clinique de la Douleur, Clermont-Ferrand, France INSERM U1107 NEURO-DOL, Clermont-Ferrand, France; and
| | - Elisabeth Miot-Noirault
- Clermont Université, Université d'Auvergne, Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, Clermont-Ferrand, France INSERM, U 990, Clermont-Ferrand, France
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Mauck RL, Burdick JA. From repair to regeneration: biomaterials to reprogram the meniscus wound microenvironment. Ann Biomed Eng 2015; 43:529-42. [PMID: 25650096 DOI: 10.1007/s10439-015-1249-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 01/09/2015] [Indexed: 12/20/2022]
Abstract
When the field of tissue engineering first arose, scaffolds were conceived of as inert three-dimensional structures whose primary function was to support cellularity and tissue growth. Since then, advances in scaffold and biomaterial design have evolved to not only guide tissue formation, but also to interact dynamically with and manipulate the wound environment. At present, these efforts are being directed towards strategies that directly address limitations in endogenous wound repair, with the goal of reprogramming the local wound environment (and the cells within that locality) from a state that culminates in an inferior tissue repair into a state in which functional regeneration is achieved. This review will address this approach with a focus on recent advances in scaffold design towards the resolution of tears of the knee meniscus as a case example. The inherent limitations to endogenous repair will be discussed, as will specific examples of how biomaterials are being designed to overcome these limitations. Examples will include design of fibrous scaffolds that promote colonization by modulating local extracellular matrix density and delivering recruitment factors. Furthermore, we will discuss scaffolds that are themselves modulated by the wound environment to alter porosity and modulate therapeutic release through precise coordination of scaffold degradation. Finally, we will close with emerging concepts in local control of cell mechanics to improve interstitial cell migration and so advance repair. Overall, these examples will illustrate how emergent features within a biomaterial can be tuned to manipulate and harness the local tissue microenvironment in order to promote robust regeneration.
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Affiliation(s)
- Robert L Mauck
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 424 Stemmler Hall, 36th Street and Hamilton Walk, Philadelphia, PA, 19104, USA,
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Kraus VB. Preclinical osteoarthritis. Rheumatology (Oxford) 2015. [DOI: 10.1016/b978-0-323-09138-1.00179-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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An ARGS-aggrecan assay for analysis in blood and synovial fluid. Osteoarthritis Cartilage 2014; 22:242-9. [PMID: 24361794 DOI: 10.1016/j.joca.2013.12.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 11/29/2013] [Accepted: 12/09/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To validate a modified ligand-binding assay for the detection of aggrecanase generated aggrecan fragments with the ARGS neoepitope in synovial fluid (SF) and blood, and to verify the identity of aggrecan fragments found in blood. DESIGN An enzyme-linked immunosorbent assay (ELISA) on the Meso Scale Discovery (MSD) platform for detection of ARGS-aggrecan was validated, using a standard made from recombinant human aggrecan. Matched samples of SF, serum, plasma, and urine were obtained from 36 subjects at different time points after knee injury, and analysed for ARGS-aggrecan content. Aggrecan was purified from serum and plasma pools and analysed by Western blot. RESULTS The limits of quantification for the ARGS-aggrecan assay was between 0.2 and 0.025 pmol ARGS/ml, and the sensitivity of the assay was improved two-fold compared to when using a standard purified from human donors. The ARGS concentrations were highest in SF (mean, range; 3.02, 0.36-30.22 pmol/ml), 20 times lower in the blood samples (0.14, 0.055-0.28 pmol/ml serum and 0.13, 0.053-0.28 pmol/ml plasma), and 80 times lower in urine (0.036, below detection - 0.087 pmol/ml). Serum-ARGS and plasma-ARGS concentrations were similar, and correlated (r(S) = 0.773, P < 0.001). SF concentration correlated with serum concentrations (r(S) = 0.420, P = 0.011). In blood, we identified 129-138 kDa aggrecan fragments containing the ARGS neoepitope. CONCLUSIONS This novel ARGS-aggrecan assay is highly sensitive and suited for analysis of SF and blood samples. Both SF and blood contains ARGS-aggrecan, and ARGS concentrations in SF and serum are correlated.
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25
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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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26
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Franciozi CES, Tarini VAF, Reginato RD, Gonçalves PRS, Medeiros VP, Ferretti M, Dreyfuss JL, Nader HB, Faloppa F. Gradual strenuous running regimen predisposes to osteoarthritis due to cartilage cell death and altered levels of glycosaminoglycans. Osteoarthritis Cartilage 2013; 21:965-72. [PMID: 23602983 DOI: 10.1016/j.joca.2013.04.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 03/18/2013] [Accepted: 04/06/2013] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To investigate the hypothesis that strenuous running is a predisposing factor for osteoarthritis. DESIGN Wistar rats were divided into two groups: a control group (CG) and a trained group (TG). The TG underwent a strenuous treadmill running training regimen of controlled intensity, exhibiting progressively improvement of fitness over 12 weeks, running at least 55 km during this period and finally performing an ultra-endurance running exercise to exhaustion. After this period, rats from both groups were euthanized and their knees removed. The articular cartilage was dissected and submitted to histomorphometrical, histomorphological, and immunohistochemical analyses evaluating cell death pathway (caspase-3 and terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL)) and inflammatory cytokines [interleukin-1α (IL-1α) and tumor necrosis factor-α (TNF-α)]. In addition, the tissues were analyzed regarding the types and the content of glycosaminoglycans. RESULTS The TG knee joints exhibited increase in the number of chondrocytes and chondrocyte clusters, as well as significantly increased levels of caspase-3, a protein involved in apoptosis, and of inflammatory cytokines IL-1α and TNF-α. In addition, histologically higher grades of osteoarthritis (Osteoarthritis Research Society International - OARSI grading), and significantly decreased levels of chondroitin sulfate and hyaluronic acid. Knee cartilage thickness and TUNEL did not significantly differ between the two groups. CONCLUSIONS The articular cartilage of rats subjected to a strenuous running regimen of controlled intensity exhibited molecular and histological characteristics that are present in osteoarthritis.
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Affiliation(s)
- C E S Franciozi
- Department of Orthopaedics and Traumatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
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Struglics A, Lohmander LS, Last K, Akikusa J, Allen R, Fosang AJ. Aggrecanase cleavage in juvenile idiopathic arthritis patients is minimally detected in the aggrecan interglobular domain but robust at the aggrecan C-terminus. ACTA ACUST UNITED AC 2012; 64:4151-61; author reply 4162-3. [DOI: 10.1002/art.34665] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Accepted: 08/02/2012] [Indexed: 01/18/2023]
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28
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Swärd P, Frobell R, Englund M, Roos H, Struglics A. Cartilage and bone markers and inflammatory cytokines are increased in synovial fluid in the acute phase of knee injury (hemarthrosis)--a cross-sectional analysis. Osteoarthritis Cartilage 2012; 20:1302-8. [PMID: 22874525 DOI: 10.1016/j.joca.2012.07.021] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 07/21/2012] [Accepted: 07/28/2012] [Indexed: 02/02/2023]
Abstract
PURPOSE The aim of this cross-sectional study was to investigate concentrations of cartilage and bone markers, and pro-inflammatory cytokines in synovial fluid (SF) collected at different time-points from acutely injured knees with hemarthrosis and to compare these with SF concentrations of knees of age and gender-matched healthy reference subjects. METHODS SF was aspirated from the acutely injured knee of 111 individuals (mean age 27 years, span 13-64 years, 22% women). Concentrations of sulfated glycosaminoglycan (sGAG) were measured by Alcian blue precipitation whereas cartilage ARGS, bone biomarkers [osteocalcin (OCL), secreted protein acidic and rich in cysteine (SPARC) and osteopontin (OPN)] and pro-inflammatory cytokines [interleukin (IL)-1β, IL-6, IL-8 and tumor necrosis factor (TNF)-α] were analyzed using electrochemiluminescence. Samples were also analyzed with regard to time between injury and aspiration [same day (n = 29), 1 day (n = 31), 2-3 days (n = 19), 4-7 days (n = 20) and 8-23 days (n = 12)]. RESULTS SF concentrations of ARGS (P < 0.001), SPARC (P < 0.001), OPN (P < 0.001), and all cytokines (P < 0.001), but not sGAG (P = 0.06) or OCL (P = 0.992), were significantly higher in injured knees compared to knees of reference subjects. The cartilage markers sGAG and ARGS were significantly higher in knees aspirated later than 1 day after injury, whereas concentrations of SPARC and OPN and all cytokines were higher in knees aspirated the same day as the injury and at all time-points thereafter. CONCLUSIONS Our results suggest that an acute knee injury is associated with an instant local biochemical response to the trauma, which may affect cartilage and bone as well as the inflammatory activity.
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Affiliation(s)
- P Swärd
- Department of Orthopaedics, Clinical Sciences Lund, Lund University, Lund, Sweden.
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Hogrefe C, Joos H, Maheswaran V, Dürselen L, Ignatius A, Brenner RE. Single impact cartilage trauma and TNF-α: interactive effects do not increase early cell death and indicate the need for bi-/multidirectional therapeutic approaches. Int J Mol Med 2012; 30:1225-32. [PMID: 22922824 DOI: 10.3892/ijmm.2012.1112] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 07/30/2012] [Indexed: 11/06/2022] Open
Abstract
Blunt trauma of articular cartilage, often resulting from accidents or sports injuries, is associated with local inflammatory reactions and represents a major risk factor for development of post-traumatic osteoarthritis. TNF-α is increased in synovial fluid early after trauma, potentiates injury-induced proteoglycan degradation and may act proapoptotic under permissive conditions. We asked whether TNF-α also influences chondrocyte death, gene expression of catabolic and anabolic markers and the release of proinflammatory mediators in the early post-traumatic phase. Interactive effects of a defined single impact trauma (0.59 J) and TNF-α (100 ng/ml) on human early-stage osteoarthritic cartilage were investigated in vitro over 24 h. Exposure of traumatized cartilage to TNF-α did not increase chondrocyte death. IL-6-synthesis was augmented by trauma, TNF-α and combined treatment. The impact increased the release of PGE2 and PGD2 in the presence and absence of TNF-α to a similar extent while TNF-α alone showed no effect. In contrast, NOS2A-expression and nitric oxide (NO)-release were not affected by trauma but significantly increased by TNF-α. Expression of OPG and RANKL was not affected by TNF-α but modulated by trauma. TNF-α with and without trauma significantly induced MMP1 gene expression. These results indicate that TNF-α does not potentiate early cell death in early-stage osteoarthritic cartilage after blunt injury. However, trauma and TNF-α showed independent and interactive effects concerning prostaglandin and NO release. TNF-α probably contributes to cartilage degradation after trauma by an early induction of MMP1 gene expression. Our study confirms that an anti-TNF-α therapy may have inhibitory effects on catabolic and, partly, on inflammatory processes after a single impact trauma. As TNF-α does not contribute to the loss of chondrocytes in the initial post-traumatic phase, a combination with pharmaco-therapeutic strategies reducing early cell death could be reasonable.
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Affiliation(s)
- Cathrin Hogrefe
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, University of Ulm, Ulm, Germany
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MMP proteolysis of the human extracellular matrix protein aggrecan is mainly a process of normal turnover. Biochem J 2012; 446:213-23. [DOI: 10.1042/bj20120274] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Although it has been shown that aggrecanases are involved in aggrecan degradation, the role of MMP (matrix metalloproteinase) aggrecanolysis is less well studied. To investigate MMP proteolysis of human aggrecan, in the present study we used neoepitope antibodies against MMP cleavage sites and Western blot analysis to identify MMP-generated fragments in normal and OA (osteoarthritis/osteoarthritic) cartilage, and in normal, knee injury and OA and SF (synovial fluid) samples. MMP-3 in vitro digestion showed that aggrecan contains six MMP cleavage sites, in the IGD (interglobular domain), the KS (keratan sulfate) region, the border between the KS region and CS (chondroitin sulfate) region 1, the CS1 region, and the border between the CS2 and the G3 domain, and kinetic studies showed a specific order of digestion where the cleavage between CS2 and the G3 domain was the most preferred. In vivo studies showed that OA cartilage contained (per dry weight) 3.4-fold more MMP-generated FFGV fragments compared with normal cartilage, and although aggrecanase-generated SF-ARGS concentrations were increased 14-fold in OA and knee-injured patients compared with levels in knee-healthy reference subjects, the SF-FFGV concentrations did not notably change. The results of the present study suggest that MMPs are mainly involved in normal aggrecan turnover and might have a less-active role in aggrecan degradation during knee injury and OA.
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Chu CR, Williams AA, Coyle CH, Bowers ME. Early diagnosis to enable early treatment of pre-osteoarthritis. Arthritis Res Ther 2012; 14:212. [PMID: 22682469 PMCID: PMC3446496 DOI: 10.1186/ar3845] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Osteoarthritis is a prevalent and disabling disease affecting an increasingly large swathe of the world population. While clinical osteoarthritis is a late-stage condition for which disease-modifying opportunities are limited, osteoarthritis typically develops over decades, offering a long window of time to potentially alter its course. The etiology of osteoarthritis is multifactorial, showing strong associations with highly modifiable risk factors of mechanical overload, obesity and joint injury. As such, characterization of pre-osteoarthritic disease states will be critical to support a paradigm shift from palliation of late disease towards prevention, through early diagnosis and early treatment of joint injury and degeneration to reduce osteoarthritis risk. Joint trauma accelerates development of osteoarthritis from a known point in time. Human joint injury cohorts therefore provide a unique opportunity for evaluation of pre-osteoarthritic conditions and potential interventions from the earliest stages of degeneration. This review focuses on recent advances in imaging and biochemical biomarkers suitable for characterization of the pre-osteoarthritic joint as well as implications for development of effective early treatment strategies.
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Affiliation(s)
- Constance R Chu
- Cartilage Restoration Center, Department of Orthopaedic Surgery, University of Pittsburgh, Biomedical Science Tower E1640, 200 Lothrop Street, PA 15261, USA.
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The association between changes in synovial fluid levels of ARGS-aggrecan fragments, progression of radiographic osteoarthritis and self-reported outcomes: a cohort study. Osteoarthritis Cartilage 2012; 20:388-395. [PMID: 22330175 DOI: 10.1016/j.joca.2012.02.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 01/30/2012] [Accepted: 02/07/2012] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate whether change in concentrations over time of aggrecanase generated ARGS-aggrecan in synovial fluid (SF ARGS) associates with progression of radiographic knee osteoarthritis (OA) and patient-reported outcome in subjects with previous meniscectomy. METHODS We studied 141 subjects at two time points after meniscectomy. Time point A was on average 18 years after meniscectomy, time point B was on average 7.5 years later; 74 subjects had SF available from both examinations. We measured SF ARGS by an electrochemiluminescence immunoassay, graded radiographic features of tibiofemoral or patellofemoral OA according to the Osteoarthritis Research Society International (OARSI) atlas, and scored patient-reported outcomes using the Knee Injury and Osteoarthritis Outcome Score (KOOS). Using logistic regression (adjusted for age, gender, body mass index, time between examinations, and SF ARGS at first examination) we assessed associations between change in SF ARGS between first and second examinations and progression of radiographic OA and KOOS. RESULTS In subjects with decreasing SF ARGS between examinations, the likelihood of loss of joint space and worsening of KOOS pain between examinations was increased 6- and 4-fold respectively compared to those increasing in SF ARGS (odds ratio (OR) 5.72; 95% confidence interval (CI) 1.53-21.4 and 3.66; 1.01-13.2, respectively). No significant associations were seen between decreasing SF ARGS and progression of osteophytes (OR 0.88; 0.28-2.78), or for patient-reported outcomes other than KOOS pain. CONCLUSION Having decreasing levels of SF ARGS over time was associated with an increased risk of loss of joint space and pain worsening, but showed no association with other patient-reported outcomes or osteophyte progression.
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Hardin JA. Osteoarthritis: a perspective from the arthritis foundation: we need a base hit. HSS J 2012; 8:72-4. [PMID: 23372540 PMCID: PMC3295942 DOI: 10.1007/s11420-011-9264-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Accepted: 12/12/2011] [Indexed: 02/07/2023]
Affiliation(s)
- John A. Hardin
- Arthritis Foundation, P.O. Box 7669, Atlanta, GA 30357-0669 USA
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