1
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Ma Q, Steiger S. Neutrophils and extracellular traps in crystal-associated diseases. Trends Mol Med 2024; 30:809-823. [PMID: 38853086 DOI: 10.1016/j.molmed.2024.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/16/2024] [Accepted: 05/21/2024] [Indexed: 06/11/2024]
Abstract
Crystalline material can cause a multitude of acute and chronic inflammatory diseases, such as gouty arthritis, silicosis, kidney disease, and atherosclerosis. Crystals of various types are thought to cause similar inflammatory responses, including the release of proinflammatory mediators and formation of neutrophil extracellular traps (NETs), processes that further promote necroinflammation and tissue damage. It has become apparent that the intensity of inflammation and the related mechanisms of NET formation and neutrophil death in crystal-associated diseases can vary depending on the crystal type, amount, and site of deposition. This review details new mechanistic insights into crystal biology, highlights the differential effects of various crystals on neutrophils and extracellular trap (ET) formation, and discusses treatment strategies and potential future approaches for crystal-associated disorders.
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Affiliation(s)
- Qiuyue Ma
- Key Laboratory of Microsystems and Microstructures Manufacturing (Ministry of Education), School of Medicine and Health, Harbin Institute of Technology, Harbin, China; Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou, China
| | - Stefanie Steiger
- Renal Division, Department of Medicine IV, Ludwig-Maximilians-University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany.
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2
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Ye T, Wang C, Yan J, Qin Z, Qin W, Ma Y, Wan Q, Lu W, Zhang M, Tay FR, Jiao K, Niu L. Lysosomal destabilization: A missing link between pathological calcification and osteoarthritis. Bioact Mater 2024; 34:37-50. [PMID: 38173842 PMCID: PMC10761323 DOI: 10.1016/j.bioactmat.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/10/2023] [Accepted: 12/01/2023] [Indexed: 01/05/2024] Open
Abstract
Calcification of cartilage by hydroxyapatite is a hallmark of osteoarthritis and its deposition strongly correlates with the severity of osteoarthritis. However, no effective strategies are available to date on the prevention of hydroxyapatite deposition within the osteoarthritic cartilage and its role in the pathogenesis of this degenerative condition is still controversial. Therefore, the present work aims at uncovering the pathogenic mechanism of intra-cartilaginous hydroxyapatite in osteoarthritis and developing feasible strategies to counter its detrimental effects. With the use of in vitro and in vivo models of osteoarthritis, hydroxyapatite crystallites deposited in the cartilage are found to be phagocytized by resident chondrocytes and processed by the lysosomes of those cells. This results in lysosomal membrane permeabilization (LMP) and release of cathepsin B (CTSB) into the cytosol. The cytosolic CTSB, in turn, activates NOD-like receptor protein-3 (NLRP3) inflammasomes and subsequently instigates chondrocyte pyroptosis. Inhibition of LMP and CTSB in vivo are effective in managing the progression of osteoarthritis. The present work provides a conceptual therapeutic solution for the prevention of osteoarthritis via alleviation of lysosomal destabilization.
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Affiliation(s)
- Tao Ye
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Chenyu Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Jianfei Yan
- Department of Stomatology, Tangdu Hospital, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Zixuan Qin
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Wenpin Qin
- Department of Stomatology, Tangdu Hospital, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Yuxuan Ma
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Qianqian Wan
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Weicheng Lu
- Department of Stomatology, Tangdu Hospital, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Mian Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Franklin R. Tay
- The Dental College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Kai Jiao
- Department of Stomatology, Tangdu Hospital, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
| | - Lina Niu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, PR China
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3
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Kiełbowski K, Herian M, Bakinowska E, Banach B, Sroczyński T, Pawlik A. The Role of Genetics and Epigenetic Regulation in the Pathogenesis of Osteoarthritis. Int J Mol Sci 2023; 24:11655. [PMID: 37511413 PMCID: PMC10381003 DOI: 10.3390/ijms241411655] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Osteoarthritis (OA) is progressive disease characterised by cartilage degradation, subchondral bone remodelling and inflammation of the synovium. The disease is associated with obesity, mechanical load and age. However, multiple pro-inflammatory immune mediators regulate the expression of metalloproteinases, which take part in cartilage degradation. Furthermore, genetic factors also contribute to OA susceptibility. Recent studies have highlighted that epigenetic mechanisms may regulate the expression of OA-associated genes. This review aims to present the mechanisms of OA pathogenesis and summarise current evidence regarding the role of genetics and epigenetics in this process.
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Affiliation(s)
| | | | | | | | | | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland; (K.K.); (M.H.); (E.B.); (B.B.); (T.S.)
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4
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Døssing A, Henriksen M, Ellegaard K, Nielsen SM, Stamp LK, Müller FC, Kloppenburg M, Haugen IK, McCarthy GM, Conaghan PG, Ulff-Møller Dahl L, Terslev L, Altman RD, Becce F, Ginnerup-Nielsen E, Jensen L, Boesen M, Christensen R, Dal U, Bliddal H. Colchicine twice a day for hand osteoarthritis (COLOR): a double-blind, randomised, placebo-controlled trial. THE LANCET. RHEUMATOLOGY 2023; 5:e254-e262. [PMID: 38251589 DOI: 10.1016/s2665-9913(23)00065-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 04/08/2023]
Abstract
BACKGROUND Colchicine has been suggested for osteoarthritis treatment, but evidence is contradictory. We aimed to investigate colchicine's efficacy and safety compared with placebo in people with hand osteoarthritis. METHODS In this single-centre, double-blind, randomised, placebo-controlled trial we recruited adults with symptomatic hand osteoarthritis and finger pain of at least 40 mm on a 100 mm visual analogue scale from an outpatient clinic in Denmark. The hand with the most severe finger pain at inclusion was the target hand. Participants were randomly assigned (1:1) to 0·5 mg colchicine or placebo taken orally twice a day for 12 weeks, stratified by BMI (≥30 kg/m2), sex, and age (≥75 years). Participants, outcome assessors, and data analysts were masked to treatment allocation. The primary endpoint was change from baseline to week 12 in target hand finger pain, assessed on a 100 mm visual analogue scale with a pre-specified minimal clinically important difference of 15 mm, in the intention-to-treat population. Safety was assessed at week 12 in the intention-to-treat population. The study was registered with ClinicalTrials.gov, NCT04601883, and with EudraCT, 2020-002803-20. FINDINGS Between Jan 15, 2021, and March 3, 2022, 186 people were screened for eligibility, and 100 were randomly assigned to receive colchicine (n=50) or placebo (n=50). Participants had a mean age of 70·9 (SD 7·5) years, 69 (69%) of 100 were women and 31 (31%) were men. All participants completed the study. The mean change from baseline to week 12 in finger pain were -13·9 mm (SE 2·8) in the colchicine group and -13·5 mm (2·8) in the placebo group, with a between-group difference (colchicine vs placebo) of -0·4 mm (95% CI -7·6 to 6·7; p=0·90). In the colchicine group, there were 76 adverse events in 36 (72%) of 50 participants and one serious adverse advent (migraine attack leading to hospital admission). In the placebo group, there were 42 adverse events in 22 (44%) of 50 participants and two serious adverse events (cholecystitis and elevated alanine aminotransferase concentrations, in the same patient). INTERPRETATION In people with painful hand osteoarthritis, treatment with 0·5 mg of colchicine twice day for 12 weeks did not effectively relieve pain, and treatment with colchicine was associated with more adverse events. FUNDING The Oak Foundation, IMK Almene Fond, Minister Erna Hamilton's Scholarship for Science and Art, AP Moller and Wife Chastine McKinney Moller's Foundation for Medical Science Advancement, The Danish Medical Association, the Velux Foundation, Aase and Ejnar Danielsen's Foundation, and Director Emil C Hertz and Wife Inger Hertz's foundation.
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Affiliation(s)
- Anna Døssing
- The Parker Institute, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark.
| | - Marius Henriksen
- The Parker Institute, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark
| | - Karen Ellegaard
- The Parker Institute, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark
| | - Sabrina Mai Nielsen
- Section for Biostatistics and Evidence-Based Research, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark; Research Unit of Rheumatology, Department of Clinical Research, University of Southern Denmark, Odense University Hospital, Denmark
| | - Lisa K Stamp
- Department of Medicine, University of Otago, Christchurch, Christchurch, New Zealand
| | - Felix C Müller
- Department of Radiology, Herlev and Gentofte Hospital, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Margreet Kloppenburg
- Departments of Rheumatology and Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ida K Haugen
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
| | | | - Philip G Conaghan
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and National Institute for Health and Care Research Leeds Biomedical Research Centre, Leeds, UK
| | - Louise Ulff-Møller Dahl
- The Parker Institute, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark
| | - Lene Terslev
- Center for Rheumatology and Spine Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Roy D Altman
- Division of Rheumatology and Immunology, The David Geffen School of Medicines at the University of California at Los Angeles (UCLA), Los Angeles, CA, USA
| | - Fabio Becce
- Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Elisabeth Ginnerup-Nielsen
- The Parker Institute, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark
| | - Lene Jensen
- The Parker Institute, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark
| | - Mikael Boesen
- Department of Radiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark
| | - Robin Christensen
- Section for Biostatistics and Evidence-Based Research, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark; Research Unit of Rheumatology, Department of Clinical Research, University of Southern Denmark, Odense University Hospital, Denmark
| | | | - Henning Bliddal
- The Parker Institute, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Frederiksberg, Denmark
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5
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Hellberg I, Karjalainen VP, Finnilä MAJ, Jonsson E, Turkiewicz A, Önnerfjord P, Hughes V, Tjörnstrand J, Englund M, Saarakkala S. 3D analysis and grading of calcifications from ex vivo human meniscus. Osteoarthritis Cartilage 2023; 31:482-492. [PMID: 36356928 PMCID: PMC7614369 DOI: 10.1016/j.joca.2022.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 10/31/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Meniscal calcifications are associated with the pathogenesis of knee osteoarthritis (OA). We propose a micro-computed tomography (μCT) based 3D analysis of meniscal calcifications ex vivo, including a new grading system. METHOD Human medial and lateral menisci were obtained from 10 patients having total knee replacement for medial compartment OA and 10 deceased donors without knee OA (healthy references). The samples were fixed; one subsection was imaged with μCT, and the adjacent tissue was processed for histological evaluation. Calcifications were examined from the reconstructed 3D μCT images, and a new grading system was developed. To validate the grading system, meniscal calcification volumes (CVM) were quantitatively analyzed and compared between the calcification grades. Furthermore, we estimated the relationship between histopathological degeneration and the calcification severity. RESULTS 3D μCT images depict calcifications in every sample, including diminutive calcifications that are not visible in histology. In the new grading system, starting from grade 2, each grade results in a CVM that is 20.3 times higher (95% CI 13.3-30.5) than in the previous grade. However, there was no apparent difference in CVM between grades 1 and 2. The calcification grades appear to increase with the increasing histopathological degeneration, although histopathological degeneration is also observed with small calcification grades. CONCLUSIONS 3D μCT grading of meniscal calcifications is feasible. Interestingly, it seems that there are two patterns of degeneration in the menisci of our sample set: 1) with diminutive calcifications (calcification grades 1-2), and 2) with large to widespread calcifications (calcification grades 3-5).
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Affiliation(s)
- I Hellberg
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland.
| | - V-P Karjalainen
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland.
| | - M A J Finnilä
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland.
| | - E Jonsson
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Clinical Epidemiology Unit, Lund, Sweden; Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Rheumatology and Molecular Skeletal Biology, Lund, Sweden.
| | - A Turkiewicz
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Clinical Epidemiology Unit, Lund, Sweden.
| | - P Önnerfjord
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Rheumatology and Molecular Skeletal Biology, Lund, Sweden.
| | - V Hughes
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Clinical Epidemiology Unit, Lund, Sweden.
| | - J Tjörnstrand
- Lund University, Skane University Hospital, Department of Clinical Sciences Lund, Orthopaedics, Lund, Sweden.
| | - M Englund
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Clinical Epidemiology Unit, Lund, Sweden.
| | - S Saarakkala
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland; Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland.
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6
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Wang X, Wu Q, Zhang R, Fan Z, Li W, Mao R, Du Z, Yao X, Ma Y, Yan Y, Sun W, Wu H, Wei W, Hu Y, Hong Y, Hu H, Koh YW, Duan W, Chen X, Ouyang H. Stage-specific and location-specific cartilage calcification in osteoarthritis development. Ann Rheum Dis 2023; 82:393-402. [PMID: 36261249 DOI: 10.1136/ard-2022-222944] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/30/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES This study investigated the stage-specific and location-specific deposition and characteristics of minerals in human osteoarthritis (OA) cartilages via multiple nano-analytical technologies. METHODS Normal and OA cartilages were serially sectioned for micro-CT, scanning electron microscopy with energy dispersive X-ray spectroscopy, micro-Raman spectroscopy, focused ion beam scanning electron microscopy, high-resolution electron energy loss spectrometry with transmission electron microscopy, nanoindentation and atomic force microscopy to analyse the structural, compositional and mechanical properties of cartilage in OA progression. RESULTS We found that OA progressed by both top-down calcification at the joint surface and bottom-up calcification at the osteochondral interface. The top-down calcification process started with spherical mineral particle formation in the joint surface during early-stage OA (OA-E), followed by fibre formation and densely packed material transformation deep into the cartilage during advanced-stage OA (OA-A). The bottom-up calcification in OA-E started when an excessive layer of calcified tissue formed above the original calcified cartilage, exhibiting a calcified sandwich structure. Over time, the original and upper layers of calcified cartilage fused, which thickened the calcified cartilage region and disrupted the cartilage structure. During OA-E, the calcified cartilage was hypermineralised, containing stiffer carbonated hydroxyapatite (HAp). During OA-A, it was hypomineralised and contained softer HAp. This discrepancy may be attributed to matrix vesicle nucleation during OA-E and carbonate cores during OA-A. CONCLUSIONS This work refines our current understanding of the mechanism underlying OA progression and provides the foothold for potential therapeutic targeting strategies once the location-specific cartilage calcification features in OA are established.
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Affiliation(s)
- Xiaozhao Wang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Qin Wu
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ru Zhang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Zhang Fan
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wenyue Li
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Renwei Mao
- ZJU-UIUC Institute, International Campus, Zhejiang University, Haining, Zhejiang, China
| | - Zihao Du
- ZJU-UIUC Institute, International Campus, Zhejiang University, Haining, Zhejiang, China
| | - Xudong Yao
- International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Yuanzhu Ma
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Yiyang Yan
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Wei Sun
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Hongwei Wu
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Wei Wei
- International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Yejun Hu
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Yi Hong
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Huan Hu
- ZJU-UIUC Institute, International Campus, Zhejiang University, Haining, Zhejiang, China
| | - Yi Wen Koh
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wangping Duan
- Department of Orthopedics, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xiao Chen
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
| | - Hongwei Ouyang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China .,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,China Orthopedic Regenerative Medicine Group, CORMed, Hangzhou, Zhejiang, China
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7
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Gauffenic A, Bazin D, Combes C, Daudon M, Ea HK. Pathological calcifications in the human joint. CR CHIM 2022. [DOI: 10.5802/crchim.193] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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8
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Hubert J, Beil FT, Rolvien T, Butscheidt S, Hischke S, Püschel K, Frosch S, Mussawy H, Ries C, Hawellek T. Cartilage calcification is associated with histological degeneration of the knee joint: a highly prevalent, age-independent systemic process. Osteoarthritis Cartilage 2020; 28:1351-1361. [PMID: 32683044 DOI: 10.1016/j.joca.2020.04.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/10/2020] [Accepted: 04/29/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To investigate if cartilage calcification (CC) is a systemic process, the purpose of this study was to determine the prevalence and the amount of meniscal/hyaline CC of the knee joint in the general population by high-resolution imaging (DCR) and to evaluate the association between CC with cartilage degeneration and age. METHODS Cross-sectional DCR-study of 180 knee joints of 90 donors (42 female/48 male, mean age 62.3y). Histological hyaline (OARSI) and meniscal (Krenn) cartilage degeneration was determined of all knees. RESULTS CC was observed in 100% of the donors (bilaterally in 98%), hyaline cartilage calcification (HCC) in 92% and meniscal calcification (MC) in 100%. CC was detected in more than three out of six distinct cartilage areas in 84.4% of all knees. The mean amount of CC correlated between both sides of donors, the different analyzed areas of the knee joint and between the various types of cartilage structures. There was more calcification in meniscal than in hyaline cartilage (factor 5.3) and in the medial than the lateral compartment (factor 1.2). HCC/MC were already detectable with only mild cartilage lesions and the amount correlated with histological cartilage degeneration, but not with age. CONCLUSIONS The present study provides evidence that meniscal and hyaline CC occurs in a pattern that is compatible with CC being a systemically driven process and that meniscal fibrocartilage is more prone to calcification than hyaline cartilage. Furthermore, the age-independent association between the amount of CC and the grade of degeneration in both hyaline and meniscal cartilage, suggests that CC is an obligatory early event in initiating cartilage degeneration.
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Affiliation(s)
- J Hubert
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Göttingen, Germany.
| | - F T Beil
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - T Rolvien
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - S Butscheidt
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - S Hischke
- Department of Medical Biometry and Epidemiology and Institute for Health Services Research in Dermatology and Nursing | IVDP, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - K Püschel
- Department of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - S Frosch
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Göttingen, Germany.
| | - H Mussawy
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - C Ries
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - T Hawellek
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Göttingen, Germany.
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9
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Rakshit M, Gautam A, Toh LZ, Lee YS, Lai HY, Wong TT, Ng KW. Hydroxyapatite Particles Induced Modulation of Collagen Expression and Secretion in Primary Human Dermal Fibroblasts. Int J Nanomedicine 2020; 15:4943-4956. [PMID: 32764927 PMCID: PMC7367744 DOI: 10.2147/ijn.s245500] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/09/2020] [Indexed: 01/31/2023] Open
Abstract
Background Hydroxyapatite (HA) [Ca5(PO4)3(OH)] is a naturally occurring calcium phosphate which makes up 60–70% of the dry weight of human bones. Nano-scale HA particles are increasingly being used as carriers for controlled and targeted delivery of bioactive agents like drugs, proteins, and nucleic acids due to their high porosity, negative charge, and biodegradability. Purpose Although much effort has been devoted to understanding the delivery kinetics and effects of the payloads in such carriers, a thorough understanding of the influence of the carriers themselves is lacking. Methods HA particles (300 µg/mL) were administered to primary human dermal fibroblasts (HDFs). The uptake and intracellular localization of the particles were determined by flow cytometry, confocal imaging, and transmission electron microscopy (TEM). Immunological assays and PCR were performed to determine the levels of pro-inflammatory cytokines and collagens in cell lysates and media supernatant. Results The current study explores the effects of poly-dispersed HA particles on primary HDFs as a model system. The majority of the particles were determined to range between 150 and 200 nm in diameter. Upon exposure to HA suspensions, primary HDFs internalized the particles by endocytosis within 6 hours of exposure, showing maximum uptake at 72 hours following which the particles were exocytosed by 168 hours. This correlated to reduced secretion of various pro-inflammatory and pro-collagenic cytokines. Biochemical analysis further revealed a reduction in Type I collagen expression and secretion. Conclusion HA particles have an immune-modulatory effect on dermal fibroblasts and reduce collagen production, which may impact the integrity of the extracellular matrix (ECM). This study demonstrates the need to consider the secondary effects of particulate carriers like HA, beyond basic cytotoxicity, in the specific tissue environment where the intended function is to be realized.
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Affiliation(s)
- Moumita Rakshit
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Archana Gautam
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Li Zhen Toh
- Ocular Therapeutics and Drug Delivery, Singapore Eye Research Institute, Singapore 169856, Singapore
| | - Ying Shi Lee
- Ocular Therapeutics and Drug Delivery, Singapore Eye Research Institute, Singapore 169856, Singapore
| | - Hui Ying Lai
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Tina T Wong
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore.,Ocular Therapeutics and Drug Delivery, Singapore Eye Research Institute, Singapore 169856, Singapore
| | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore.,Environmental Chemistry and Materials Centre, Nanyang Environment & Water Research Institute, Singapore 637141, Singapore.,Skin Research Institute of Singapore, Singapore 138648, Singapore.,Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Cambridge, MA 02115, USA
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10
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Yan JF, Qin WP, Xiao BC, Wan QQ, Tay FR, Niu LN, Jiao K. Pathological calcification in osteoarthritis: an outcome or a disease initiator? Biol Rev Camb Philos Soc 2020; 95:960-985. [PMID: 32207559 DOI: 10.1111/brv.12595] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/27/2020] [Accepted: 03/02/2020] [Indexed: 12/12/2022]
Abstract
In the progression of osteoarthritis, pathological calcification in the affected joint is an important feature. The role of these crystallites in the pathogenesis and progression of osteoarthritis is controversial; it remains unclear whether they act as a disease initiator or are present as a result of joint damage. Recent studies reported that the molecular mechanisms regulating physiological calcification of skeletal tissues are similar to those regulating pathological or ectopic calcification of soft tissues. Pathological calcification takes place when the equilibrium is disrupted. Calcium phosphate crystallites are identified in most affected joints and the presence of these crystallites is closely correlated with the extent of joint destruction. These observations suggest that pathological calcification is most likely to be a disease initiator instead of an outcome of osteoarthritis progression. Inhibiting pathological crystallite deposition within joint tissues therefore represents a potential therapeutic target in the management of osteoarthritis.
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Affiliation(s)
- Jian-Fei Yan
- Department of Oral Mucosal Diseases, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 145 changle xi road, Xi'an, Shaanxi, 710032, China
| | - Wen-Pin Qin
- Department of Oral Mucosal Diseases, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 145 changle xi road, Xi'an, Shaanxi, 710032, China
| | - Bo-Cheng Xiao
- Department of Oral Mucosal Diseases, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 145 changle xi road, Xi'an, Shaanxi, 710032, China
| | - Qian-Qian Wan
- Department of Oral Mucosal Diseases, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 145 changle xi road, Xi'an, Shaanxi, 710032, China
| | - Franklin R Tay
- Department of Oral Mucosal Diseases, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 145 changle xi road, Xi'an, Shaanxi, 710032, China.,Department of Endodontics, College of Graduate Studies, Augusta University, 1430, John Wesley Gilbert Drive, Augusta, GA, 30912, U.S.A
| | - Li-Na Niu
- Department of Oral Mucosal Diseases, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 145 changle xi road, Xi'an, Shaanxi, 710032, China
| | - Kai Jiao
- Department of Oral Mucosal Diseases, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, 145 changle xi road, Xi'an, Shaanxi, 710032, China
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11
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Cheng F, Yan FF, Liu YP, Cong Y, Sun KF, He XM. Dexmedetomidine inhibits the NF-κB pathway and NLRP3 inflammasome to attenuate papain-induced osteoarthritis in rats. PHARMACEUTICAL BIOLOGY 2019; 57:649-659. [PMID: 31545916 PMCID: PMC6764405 DOI: 10.1080/13880209.2019.1651874] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/15/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
Context: Dexmedetomidine (Dex) has been reported to have an anti-inflammatory effect. However, its role on osteoarthritis (OA) has not been explored. Objective: This study investigates the effect of Dex on OA rat model induced by papain. Materials and methods: The OA Wistar rat model was induced by intraluminal injection of 20 mL of papain mixed solution (4% papain 0.2 mL mixed with 0.03 mol L-1 l-cysteine 0.1 mL) into the right knee joint. Two weeks after papain injection, OA rats were treated by intra-articular injection of Dex (5, 10, or 20 μg kg-1) into the right knee (once a day, continuously for 4 weeks). Articular cartilage tissue was obtained after Dex treatment was completed. Results: The gait behavior scores (2.83 ± 0.49), PWMT (15.2 ± 1.78) and PTWL (14.81 ± 0.92) in H-DEX group were higher than that of OA group, while Mankin score (5.5 ± 0.81) was decreased (p < 0.05). Compared with the OA group, the IL-1β (153.11 ± 16.05 pg mg-1), IL-18 (3.71 ± 0.7 pg mg-1), IL-6 (14.15 ± 1.94 pg/mg) and TNF-α (40.45 ± 10.28 pg mg-1) levels in H-DEX group were decreased (p < 0.05). MMP-13, NLRP3, and caspase-1 p10 expression in Dex groups were significantly lower than that of OA group (p < 0.05), while collagen II was increased (p < 0.05). p65 in the nucleus of Dex groups was significantly down-regulated than that of OA group (p < 0.05). Discussion and Conclusions: Dex can improve pain symptoms and cartilage tissue damage of OA rats, which may be related to its inhibition of the activation of NF-κB and NLRP3 inflammasome.
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Affiliation(s)
- Fang Cheng
- Department of Pain Clinic, The Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang, China
| | - Feng-Feng Yan
- Department of Pain Clinic, The Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang, China
| | - Yue-Peng Liu
- Center for Clinical Research and Translational Medicine, The Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang, China
| | - Yan Cong
- Department of Traditional Chinese and Western Medicine, The Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang, China
| | - Ke-Fu Sun
- Department of Orthopedic, The Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang, China
| | - Xue-Ming He
- Department of Geratology, The Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang, China
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12
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Choi Y, Yoo JH, Lee Y, Bae MK, Kim HJ. Calcium-Phosphate Crystals Promote RANKL Expression via the Downregulation of DUSP1. Mol Cells 2019; 42:183-188. [PMID: 30703868 PMCID: PMC6399012 DOI: 10.14348/molcells.2018.0382] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/24/2018] [Accepted: 01/02/2019] [Indexed: 12/30/2022] Open
Abstract
Osteoarthritis (OA) is a naturally occurring, irreversible disorder and a major health burden. The disease is multifactorial, involving both physiological and mechanical processes, but calcium crystals have been associated intimately with its pathogenesis. This study tested the hypothesis that these crystals have a detrimental effect on the differentiation of osteoclasts and bone homeostasis. This study employed an osteoblast-osteoclast coculture system that resembles in vivo osteoblast-dependent osteoclast differentiation along with Ca2+-phosphate-coated culture dishes. The calcium-containing crystals upregulated the expression of RANKL and increased the differentiation of osteoclasts significantly as a result. On the other hand, osteoblast differentiation was unaffected. MicroRNA profiling showed that dual-specificity phosphatases 1 (DUSP1) was associated with the increased RANKL expression. DUSP1 belongs to a family of MAPK phosphatases and is known to inactivate all three groups of MAPKs, p38, JNK, and ERK. Furthermore, knockdown of DUSP1 gene expression suggested that RANKL expression increases significantly in the absence of DUSP1 regulation. Microarray analysis of the DUSP1 mRNA levels in patients with pathological bone diseases also showed that the downregulated DUSP1 expression leads to increased expression of RANKL and consequently to the destruction of the bone observed in these patients. These findings suggest that calcium-containing crystals may play a crucial role in promoting RANKL-induced osteoclastogenesis via DUSP1.
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Affiliation(s)
- YunJeong Choi
- Department of Oral Physiology, BK21 PLUS Project, and Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Yangsan,
Korea
| | - Ji Hyun Yoo
- Department of Oral Physiology, BK21 PLUS Project, and Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Yangsan,
Korea
| | - Youngkyun Lee
- Department of Biochemistry, School of Dentistry, Kyungpook National University, Daegu,
Korea
| | - Moon Kyoung Bae
- Department of Oral Physiology, BK21 PLUS Project, and Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Yangsan,
Korea
| | - Hyung Joon Kim
- Department of Oral Physiology, BK21 PLUS Project, and Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Yangsan,
Korea
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13
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Kosik-Bogacka DI, Lanocha-Arendarczyk N, Kot K, Zietek P, Karaczun M, Prokopowicz A, Kupnicka P, Ciosek Z. Calcium, magnesium, zinc and lead concentrations in the structures forming knee joint in patients with osteoarthritis. J Trace Elem Med Biol 2018; 50:409-414. [PMID: 30262313 DOI: 10.1016/j.jtemb.2018.08.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 07/10/2018] [Accepted: 08/28/2018] [Indexed: 12/29/2022]
Abstract
The aim of the study was to investigate the relationships between the concentrations of calcium (Ca), magnesium (Mg), zinc (Zn), and lead (Pb) in cartilage, anterior cruciate ligament, and meniscus samples obtained following knee joint surgery in patients with osteoarthritis in northwestern Poland. Furthermore, we examined the relationships between the concentrations of these metals in the studied parts of the knee joint and the influences of gender, age, BMI and hypertension. We found significantly higher concentrations of Ca, Mg, and Zn in the cartilage of men than in women and a significantly higher Pb concentration in the meniscus of the men. We also found a higher concentration of Pb in the cartilage of patients over 65 years of age. There were no differences in the concentrations of the studied metals between patients with and without hypertension. There was no relationship between Ca, Mg, Zn, and Pb levels in analyzed materials and BMI. Furthermore, we noted some new interactions between metals in the studied structures of the knee joint. The results reported in the study shows the influence of age, gender and BMI on the Ca, Mg, Zn and Pb in the studied structures of the knee joint.
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Affiliation(s)
- Danuta I Kosik-Bogacka
- Departament of Biology and Medical Parasitology, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111, Szczecin, Poland.
| | - Natalia Lanocha-Arendarczyk
- Departament of Biology and Medical Parasitology, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111, Szczecin, Poland
| | - Karolina Kot
- Departament of Biology and Medical Parasitology, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111, Szczecin, Poland
| | - Pawel Zietek
- Chair and Clinic of Orthopaedics, Traumatology and Oncology, Pomeranian Medical University, Unii Lubelskiej 1, 71-252, Szczecin, Poland
| | - Maciej Karaczun
- Chair and Clinic of Orthopaedics, Traumatology and Oncology, Pomeranian Medical University, Unii Lubelskiej 1, 71-252, Szczecin, Poland
| | - Adam Prokopowicz
- Departmet of Chemical Hazards and Genetic Toxicology, Institute of Occupational Medicina and Environmental Health, Koscielna 13, 71-200, Sosnowiec, Poland
| | - Patrycja Kupnicka
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111, Szczecin, Poland
| | - Zaneta Ciosek
- Departament of Biology and Medical Parasitology, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111, Szczecin, Poland
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14
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Bulysheva AA, Sori N, Francis MP. Direct crystal formation from micronized bone and lactic acid: The writing on the wall for calcium-containing crystal pathogenesis in osteoarthritis? PLoS One 2018; 13:e0202373. [PMID: 30388106 PMCID: PMC6214494 DOI: 10.1371/journal.pone.0202373] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 10/23/2018] [Indexed: 01/18/2023] Open
Abstract
Introduction Pathological calcium-containing crystals accumulating in the joints, synovial fluid, and soft tissues are noted in most elderly patients, yet arthritic crystal formation remains idiopathic. Interestingly, elevated lactic acid and bone erosion are frequently among the comorbidities and clinical features of patients with highest incidence of crystal arthropathies. This work shows that bone particulates (modeling bone erosion) dissolve in lactic acid and directly generate crystals, possibly presenting a mechanism for crystal accumulation in osteoarthritis. Methods and results Micronized human bone (average particle size of 160 μm x 79 μm) completely dissolved in lactic acid in 48 hours, and in synovial fluid with 500 mMol lactic acid in 5 days, generating birefringent rhomboid and rod-shaped crystals. SEM analysis with energy dispersive x-ray spectroscopy of these crystals showed average dimensions of around 2 μm x 40 μm, which contained oxygen, calcium and phosphorous at 8.64:1.85:1. Raman spectroscopy of the generated crystals further showed 910/cm and 1049/cm peaks, aligning with calcium oxalate monohydrate and calcium pyrophosphate, respectively. Conclusions This work shows that lactic acid and micronized mineralized bone together directly generate calcium-containing crystals. These observations may provide insights into the elusive etiology of arthritis with crystal involvement, possibly indicating lactic acid as a clinical target for treatment.
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Affiliation(s)
- Anna A. Bulysheva
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA, United States of America
| | - Nardos Sori
- Old Dominion University, Department of Health Sciences, Norfolk, VA, United States of America
- Department of Biomedical Sciences, Eastern Virginia Medical School, Norfolk, VA, United States of America
| | - Michael P. Francis
- Department of Biomedical Sciences, Eastern Virginia Medical School, Norfolk, VA, United States of America
- Embody, Norfolk, VA, United States of America
- * E-mail:
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15
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Murphy CLM, McCarthy G. Knee osteoarthritis and bisphosphonates: Could BCP crystals be the missing link? Ann Rheum Dis 2018; 78:e141. [DOI: 10.1136/annrheumdis-2018-214421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 09/23/2018] [Accepted: 09/24/2018] [Indexed: 11/04/2022]
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Abstract
PURPOSE OF REVIEW The purpose of this paper is to review the distinct clinical and radiographic features that may lead to prompt diagnosis of rapidly progressive osteoarthritis (RPOA) and thus obviate unnecessary and costly diagnostic workup. RECENT FINDINGS RPOA is uncommon but is more frequently seen in practice because of the aging population. RPOA is a destructive arthropathy that occurs most commonly in elderly women but can also be seen in patients that have sustained trauma. The dramatic radiologic manifestations of RPOA can lead to diagnostic confusion with other arthropathies, infection, and osteonecrosis. RPOA was originally described in the hip but may also involve the shoulder. The etiology of RPOA is not well understood, but subchondral fracture probably plays a role in the development of dramatic destruction of the joint that is seen in affected patients. Early diagnosis may reduce the complexity of surgical management. RPOA is an uncommon condition that occurs most frequently in elderly woman or in patients who have sustained trauma. Prompt recognition of the clinical and radiologic features of this arthropathy can reduce unnecessary diagnostic workup and complexity of surgical intervention.
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17
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Tanikawa H, Ogawa R, Okuma K, Harato K, Niki Y, Kobayashi S, Nagura T. Detection of calcium pyrophosphate dihydrate crystals in knee meniscus by dual-energy computed tomography. J Orthop Surg Res 2018; 13:73. [PMID: 29622016 PMCID: PMC5887196 DOI: 10.1186/s13018-018-0787-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 03/26/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Calcium pyrophosphate dihydrate (CPPD) crystals are commonly observed in osteoarthritic joints. The aim of our study was to investigate the efficacy of a dual-energy computed tomography (DECT) for detecting CPPD crystals in knee meniscus. METHODS Twenty-six patients undergoing primary total knee arthroplasty were included in the study. Radiographs of knee joint and synovial fluid specimens were analyzed for the presence of CPPD crystals. Meniscus extracted during surgery was scanned using DECT. Sensitivity and specificity of DECT and radiograph for detecting CPPD crystals were calculated against a reference standard (polarizing light microscopy of synovial fluid aspirate). Meniscus in which CPPD crystals were suspected with DECT was further examined to confirm the crystals using a polarized microscopy. RESULTS CPPD crystals in synovial fluid were observed in 9 (36%) patients. The sensitivity and specificity of DECT in the detection of CPPD crystals, against microscopic identification, were 77.8 and 93.8%, respectively. The sensitivity and specificity of conventional radiography in the detection of CPPD crystals were 44.4 and 100%, respectively. DECT was able to detect the area where CPPD crystals were deposited in the meniscus. CONCLUSION DECT provides good diagnostic sensitivity and specificity for detection of CPPD crystals in knee meniscus as well as spatial information about CPPD crystals. DECT is currently a research tool, but we believe that DECT can be a useful instrument to diagnose CPPD deposition disease, especially for the regions where aspiration is difficult to be performed such as pubic symphysis, atlantoaxial joint, interphalangeal joint.
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Affiliation(s)
- Hidenori Tanikawa
- Department of Orthopaedic Surgery, Saiseikai Yokohamashi Tobu Hospital, 3-6-1 Shimosueyoshi, Tsurumi, Yokohama, Kanagawa, Japan.
| | - Ryo Ogawa
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinamomachi, Shinjyuku, Tokyo, Japan
| | - Kazunari Okuma
- Department of Orthopaedic Surgery, Saitama City Hospital, 2460 Minuma, Midoriku, Saitamashi, Saitama, Japan
| | - Kengo Harato
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinamomachi, Shinjyuku, Tokyo, Japan
| | - Yasuo Niki
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinamomachi, Shinjyuku, Tokyo, Japan
| | - Shu Kobayashi
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinamomachi, Shinjyuku, Tokyo, Japan
| | - Takeo Nagura
- Department of Clinical Biomechanics, Keio University School of Medicine, 35 Shinamomachi, Shinjyuku, Tokyo, Japan
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18
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Nakayama M. Macrophage Recognition of Crystals and Nanoparticles. Front Immunol 2018; 9:103. [PMID: 29434606 PMCID: PMC5796913 DOI: 10.3389/fimmu.2018.00103] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 01/12/2018] [Indexed: 12/26/2022] Open
Abstract
Inhalation of exogenous crystals such as silica, asbestos, and carbon nanotubes can cause lung fibrosis and cancer. Endogenous crystals such as monosodium urate, cholesterol, and hydroxyapatite are associated with pathogenesis of gout, atherosclerosis, and osteoarthritis, respectively. These crystal-associated-inflammatory diseases are triggered by the macrophage NLRP3 inflammasome activation and cell death. Therefore, it is important to understand how macrophages recognize crystals. However, it is unlikely that macrophages have evolutionally acquired receptors specific for crystals or recently emerged nanoparticles. Several recent studies have reported that some crystal particles are negatively charged and are recognized by scavenger receptor family members in a charge-dependent manner. Alternatively, a model for receptor-independent phagocytosis of crystals has also been proposed. This review focuses on the mechanisms by which macrophages recognize crystals and nanoparticles.
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Affiliation(s)
- Masafumi Nakayama
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan.,PRESTO, Japan Science and Technology Agency, Kawaguchi, Japan
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19
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Teng GG, Leung YY, Ang LW, Yuan JM, Koh WP. Gout and risk of knee replacement for severe knee osteoarthritis in the Singapore Chinese Health Study. Osteoarthritis Cartilage 2017; 25:1962-1968. [PMID: 28757187 PMCID: PMC9237815 DOI: 10.1016/j.joca.2017.07.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 05/15/2017] [Accepted: 07/19/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE While cross-sectional and retrospective case-control studies suggest that gout is associated with knee osteoarthritis (KOA), no prospective study has evaluated the risk of total knee replacement (TKR) for KOA in association with gout. We prospectively evaluated the association between gout and the risk of TKR due to severe KOA. DESIGN We used data from the Singapore Chinese Health Study (SCHS), a prospective cohort with 63,257 Chinese adults aged 45-74 years at recruitment (1993-1998). Self-report of physician-diagnosed gout was enquired at follow-up I interview (1999-2004) from 52,322 subjects. TKR cases for KOA after follow-up I were identified via linkage with nationwide hospital discharge database through 31 December 2011. Multivariable Cox proportional hazards regression model was applied with adjustment for potential risk factors of KOA. RESULTS Among 51,858 subjects (22,180 men and 29,678 women) included in this analysis, after average 9.7 follow-up years, there were 1,435 cases of TKR. Gout was associated with 39% higher risk of TKR in women [hazard ratio (HR) 1.39; 95% confidence interval (CI) 1.08-1.79] but not in men (HR 0.78; 95% CI 0.49-1.23). The positive gout-TKR association in women remained after excluding participants with self-reported history of arthritis (HR 1.57; 95% CI 1.04-2.37). This association was stronger in women who were lean (body mass index [BMI] < 23 kg/m2) (HR 2.17; 95% CI 1.30-3.64) compared to their heavier counterparts (Pinteraction = 0.016). CONCLUSION Gout is associated with risk of severe KOA, especially in lean women, suggesting the crystal arthritis may play a role in the pathogenesis or progression of OA.
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Affiliation(s)
- G G Teng
- University Medicine Cluster, Division of Rheumatology, National University Health System, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore.
| | - Y Y Leung
- Department of Rheumatology and Immunology, Singapore General Hospital, Singapore; Duke-NUS Medical School Singapore, Singapore.
| | - L-W Ang
- Epidemiology & Disease Control Division, Ministry of Health, Singapore.
| | - J-M Yuan
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA; Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA.
| | - W-P Koh
- Duke-NUS Medical School Singapore, Singapore; Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore.
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Curzi D, Fardetti F, Beccarini A, Salucci S, Burini D, Gesi M, Calvisi V, Falcieri E, Gobbi P. Chondroptotic chondrocytes in the loaded area of chondrocalcinotic cartilage: A clinical proposal? Clin Anat 2017; 31:1188-1192. [PMID: 28929522 DOI: 10.1002/ca.22988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 09/15/2017] [Indexed: 02/02/2023]
Affiliation(s)
- Davide Curzi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, 61029, Italy
| | | | | | - Sara Salucci
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, 61029, Italy
| | - Debora Burini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, 61029, Italy
| | - Marco Gesi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, 56127, Italy
| | - Vittorio Calvisi
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, 67100, Italy
| | - Elisabetta Falcieri
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, 61029, Italy
| | - Pietro Gobbi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, 61029, Italy
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Nasi S, Ea HK, So A, Busso N. Revisiting the Role of Interleukin-1 Pathway in Osteoarthritis: Interleukin-1α and -1β, and NLRP3 Inflammasome Are Not Involved in the Pathological Features of the Murine Menisectomy Model of Osteoarthritis. Front Pharmacol 2017; 8:282. [PMID: 28659793 PMCID: PMC5468399 DOI: 10.3389/fphar.2017.00282] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 05/04/2017] [Indexed: 01/10/2023] Open
Abstract
Background: Innate immune response components such as toll-like receptors (TLRs) and NLRP3-inflammasome act in concert to increase IL-1α/β secretion by synovial macrophages. Previous results suggest that IL-1α/β could be an important mediator involved in the pathogenesis of osteoarthritis (OA). Objectives: The aim of our study was to evaluate the role of NLRP3, IL-1β, and IL-1α in the menisectomy (MNX) model of murine OA. Methods: Murine chondrocytes (CHs) and bone marrow-derived machrophages (BMDM) were stimulated with hydroxyapatite (HA) crystals, a form of calcium-containing crystal found in human OA, and IL-1β and IL-6 secretion assayed by ELISA.Conversely, the ability of IL-1β and IL-6 to induce CHs calcification was assessed in vitro by Alizarin red staining. Knees from 8 to 10 weeks old C57Bl/6J wild-type (WT) (n = 7), NLRP3-/- (n = 9), IL-1α-/- (n = 5), and IL-1β-/- (n = 5) mice were menisectomized, using the sham-operated contralateral knee as control. 8 weeks later, knee cartilage degradation and synovial inflammation were evaluated by histology. In addition, apoptotic chondrocytes, metalloproteases activity, and collagen-type 2 expression were evaluated in all mice. Joint calcification and subchondral bone parameters were quantified by CT-scan in WT and IL-1β-/- menisectomized knees. Results:In vitro, HA crystals induced significant increased IL-6 secretion by CHs, while IL-1β remained undetectable.Conversely, both IL-6 and IL-1β were able to increase chondrocytes mineralization. In vivo, operated knees exhibited OA features compared to sham-operated knees as evidenced by increased cartilage degradation and synovial inflammation. In menisectomized KO mice, severity and extent of cartilage lesions were similar (IL-1α-/- mice) or exacerbated (IL-1β-/- and NLRP3-/- mice) compared to that of menisectomized WT mice. Metalloproteases activity, collagen-type 2 expression, chondrocytes apoptosis, and synovial inflammation were similar between KO and WT mice menisectomized knees. Moreover, the extent of joint calcification in osteoarthritic knees was comparable between IL-1β-/- and WT mice. Conclusions: MNX knees recapitulated features of OA, i.e, cartilage destruction, synovial inflammation, cell death, and joint calcification. Deficiency of IL-1α did not impact on the severity of these features, whereas deficiency of IL-1β or of NLRP3 led to increased cartilage erosion. Our results suggest that IL-1α and IL-1β are not key mediators in this murine OA model and may explain the inefficiency of IL-1 targeted therapies in OA.
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Affiliation(s)
- Sonia Nasi
- Département de l'appareil Locomoteur, Service of Rheumatology, Centre Hospitalier Universitaire Vaudois and University of LausanneLausanne, Switzerland
| | - Hang-Korng Ea
- Institut National de la Santé et de la Recherche Médicale, UMR-1132, Hospital LariboisièreParis, France.,Departement de Rhumatologie, Université Paris Diderot (UFR de Médecine)Paris, France
| | - Alexander So
- Département de l'appareil Locomoteur, Service of Rheumatology, Centre Hospitalier Universitaire Vaudois and University of LausanneLausanne, Switzerland
| | - Nathalie Busso
- Département de l'appareil Locomoteur, Service of Rheumatology, Centre Hospitalier Universitaire Vaudois and University of LausanneLausanne, Switzerland
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Detection of Calcium Crystals in Knee Osteoarthritis Synovial Fluid: A Comparison Between Polarized Light and Scanning Electron Microscopy. J Clin Rheumatol 2017; 22:369-71. [PMID: 27660935 DOI: 10.1097/rhu.0000000000000416] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The identification of calcium crystals in synovial fluid (SF) of patients with osteoarthritis (OA) represents an important step in understanding the role of these crystals in synovial inflammation and disease progression. OBJECTIVES This study aimed to investigate the presence of calcium pyrophosphate (CPP) and basic calcium phosphate (BCP) crystals in SF collected from patients with symptomatic knee OA by scanning electron microscopy (SEM) coupled to x-ray energy dispersive spectroscopy, compensated polarized light microscopy (CPLM), and alizarin red staining. METHODS Seventy-four patients with knee OA were included in the study. Synovial fluid samples were collected after arthrocentesis and examined under CPLM for the assessment of CPP crystals. Basic calcium phosphate crystals were evaluated by alizarin red staining. All the samples were examined by SEM. The concordance between the 2 techniques was evaluated by Cohen κ agreement coefficient. RESULTS Calcium pyrophosphate and BCP crystals were found, respectively, in 23 (31.1%) and 13 (17.5%) of 74 OA SFs by SEM analysis. Calcium pyrophosphate crystals were identified in 23 (31.1%) of 74 samples by CPLM, whereas BCP crystals were suspected in 27 (36.4%) of 74 samples. According to κ coefficient, the concordance between CPLM and SEM was 0.83 for CPP, and that between alizarin red and SEM was 0.68 for BCP. CONCLUSIONS The results of our study showed a high level of concordance between the 2 microscope techniques as regards CPP crystal identification and a lower agreement for BCP crystals. Although this finding highlights the difficulty in identifying BCP crystals by alizarin red staining, the use of SEM remains unsuitable to apply in the clinical setting. Because of the in vitro inflammatory effect of BCP crystals, further work on their analysis in SF could provide important information about the OA process.
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Corr EM, Cunningham CC, Helbert L, McCarthy GM, Dunne A. Osteoarthritis-associated basic calcium phosphate crystals activate membrane proximal kinases in human innate immune cells. Arthritis Res Ther 2017; 19:23. [PMID: 28173838 PMCID: PMC5296949 DOI: 10.1186/s13075-017-1225-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 01/06/2017] [Indexed: 12/14/2022] Open
Abstract
Background Osteoarthritis (OA) is a chronic debilitating joint disorder of particularly high prevalence in the elderly population. Intra-articular basic calcium phosphate (BCP) crystals are present in the majority of OA joints and are associated with severe degeneration. They are known to activate macrophages, synovial fibroblasts, and articular chondrocytes, resulting in increased cell proliferation and the production of pro-inflammatory cytokines and matrix metalloproteases (MMPs). This suggests a pathogenic role in OA by causing extracellular matrix degradation and subchondral bone remodelling. There are currently no disease-modifying drugs available for crystal-associated OA; hence, the aim of this study was to explore the inflammatory pathways activated by BCP crystals in order to identify potential therapeutic targets to limit crystal-induced inflammation. Methods Primary human macrophages and dendritic cells were stimulated with BCP crystals, and activation of spleen tyrosine kinase (Syk), phosphoinositide-3 kinase (PI3K), and mitogen-activated protein kinases (MAPKs) was detected by immunoblotting. Lipopolysaccharide (LPS)-primed macrophages were pre-treated with inhibitors of Syk, PI3K, and MAPKs prior to BCP stimulation, and cytokine production was quantified by enzyme-linked immunosorbent assay (ELISA). Aa an alternative, cells were treated with synovial fluid derived from osteoarthritic knees in the presence or absence of BCP crystals, and gene induction was assessed by real-time polymerase chain reaction (PCR). Results We demonstrate that exposure of primary human macrophages and dendritic cells to BCP crystals leads to activation of the membrane-proximal tyrosine kinases Syk and PI3K. Furthermore, we show that production of the pro-inflammatory cytokines interleukin (IL)-1α and IL-1β and phosphorylation of downstream MEK and ERK MAPKs is suppressed following treatment with inhibitors of Syk or PI3K. Finally, we demonstrate that treatment of macrophages with BCP crystals induces the production of the damage-associated molecule S100A8 and MMP1 in a Syk-dependent manner and that synovial fluid from OA patients together with BCP crystals exacerbates these effects. Conclusions We identify Syk and PI3K as key signalling molecules activated by BCP crystals prior to inflammatory cytokine and DAMP expression and therefore propose that Syk and PI3K represent potential targets for the treatment of BCP-related pathologies.
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Affiliation(s)
- Emma M Corr
- School of Biochemistry & Immunology and School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Clare C Cunningham
- School of Biochemistry & Immunology and School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Laura Helbert
- Mater Misericordiae University Hospital, Dublin, Ireland
| | | | - Aisling Dunne
- School of Biochemistry & Immunology and School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.
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Orlowsky EW, Kraus VB. The role of innate immunity in osteoarthritis: when our first line of defense goes on the offensive. J Rheumatol 2015; 42:363-71. [PMID: 25593231 PMCID: PMC4465583 DOI: 10.3899/jrheum.140382] [Citation(s) in RCA: 182] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Although osteoarthritis (OA) has existed since the dawn of humanity, its pathogenesis remains poorly understood. OA is no longer considered a "wear and tear" condition but rather one driven by proteases where chronic low-grade inflammation may play a role in perpetuating proteolytic activity. While multiple factors are likely active in this process, recent evidence has implicated the innate immune system, the older or more primitive part of the body's immune defense mechanisms. The roles of some of the components of the innate immune system have been tested in OA models in vivo including the roles of synovial macrophages and the complement system. This review is a selective overview of a large and evolving field. Insights into these mechanisms might inform our ability to identify patient subsets and give hope for the advent of novel OA therapies.
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Affiliation(s)
- Eric W Orlowsky
- From the Department of Medicine, Duke Molecular Physiology Institute, and the Division of Rheumatology, Duke University School of Medicine, Durham, North Carolina, USA.E.W. Orlowsky, MD, Postdoctoral Fellow, Division of Rheumatology, Duke University School of Medicine; V.B. Kraus, MD, PhD, Professor of Medicine, Department of Medicine, Duke Molecular Physiology Institute, and Division of Rheumatology, Duke University School of Medicine
| | - Virginia Byers Kraus
- From the Department of Medicine, Duke Molecular Physiology Institute, and the Division of Rheumatology, Duke University School of Medicine, Durham, North Carolina, USA.E.W. Orlowsky, MD, Postdoctoral Fellow, Division of Rheumatology, Duke University School of Medicine; V.B. Kraus, MD, PhD, Professor of Medicine, Department of Medicine, Duke Molecular Physiology Institute, and Division of Rheumatology, Duke University School of Medicine.
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26
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Petzold J, Casadonte R, Otto M, Kriegsmann M, Granrath M, Baltzer A, Vogel J, Drees P, Deininger S, Becker M, Kriegsmann J. MALDI-Massenspektrometrie am Meniskus. Z Rheumatol 2014; 74:438-46. [DOI: 10.1007/s00393-014-1468-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Greenhill CJ, Jones GW, Nowell MA, Newton Z, Harvey AK, Moideen AN, Collins FL, Bloom AC, Coll RC, Robertson AAB, Cooper MA, Rosas M, Taylor PR, O'Neill LA, Humphreys IR, Williams AS, Jones SA. Interleukin-10 regulates the inflammasome-driven augmentation of inflammatory arthritis and joint destruction. Arthritis Res Ther 2014; 16:419. [PMID: 25175678 PMCID: PMC4292830 DOI: 10.1186/s13075-014-0419-y] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 08/01/2014] [Indexed: 12/25/2022] Open
Abstract
Introduction Activation of the inflammasome has been implicated in the pathology of various autoinflammatory and autoimmune diseases. While the NLRP3 inflammasome has been linked to arthritis progression, little is known about its synovial regulation or contribution to joint histopathology. Regulators of inflammation activation, such as interleukin (IL)-10, may have the potential to limit the inflammasome-driven arthritic disease course and associated structural damage. Hence, we used IL-10-deficient (IL-10KO) mice to assess NLRP3 inflammasome-driven arthritic pathology. Methods Antigen-induced arthritis (AIA) was established in IL-10KO mice and wild-type controls. Using histological and radiographic approaches together with quantitative real-time PCR of synovial mRNA studies, we explored the regulation of inflammasome components. These were combined with selective blocking agents and ex vivo investigative studies in osteoclast differentiation assays. Results In AIA, IL-10KO mice display severe disease with increased histological and radiographic joint scores. Here, focal bone erosions were associated with increased tartrate-resistant acid phosphatase (TRAP)-positive cells and a localized expression of IL-1β. When compared to controls, IL-10KO synovium showed increased expression of Il1b, Il33 and NLRP3 inflammasome components. Synovial Nlrp3 and Casp1 expression further correlated with Acp5 (encoding TRAP), while neutralization of IL-10 receptor signaling in control mice caused increased expression of Nlrp3 and Casp1. In ex vivo osteoclast differentiation assays, addition of exogenous IL-10 or selective blockade of the NLRP3 inflammasome inhibited osteoclastogenesis. Conclusions These data provide a link between IL-10, synovial regulation of the NLRP3 inflammasome and the degree of bone erosions observed in inflammatory arthritis. Electronic supplementary material The online version of this article (doi:10.1186/s13075-014-0419-y) contains supplementary material, which is available to authorized users.
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Revisiting spatial distribution and biochemical composition of calcium-containing crystals in human osteoarthritic articular cartilage. Arthritis Res Ther 2014; 15:R103. [PMID: 24004678 PMCID: PMC3978672 DOI: 10.1186/ar4283] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 04/04/2012] [Accepted: 09/03/2013] [Indexed: 11/13/2022] Open
Abstract
Introduction Calcium-containing (CaC) crystals, including basic calcium phosphate (BCP) and calcium pyrophosphate dihydrate (CPP), are associated with destructive forms of osteoarthritis (OA). We assessed their distribution and biochemical and morphologic features in human knee OA cartilage. Methods We prospectively included 20 patients who underwent total knee replacement (TKR) for primary OA. CaC crystal characterization and identification involved Fourier-transform infra-red spectrometry and scanning electron microscopy of 8 to 10 cartilage zones of each knee, including medial and lateral femoral condyles and tibial plateaux and the intercondyle zone. Differential expression of genes involved in the mineralization process between cartilage with and without calcification was assessed in samples from 8 different patients by RT-PCR. Immunohistochemistry and histology studies were performed in 6 different patients. Results Mean (SEM) age and body mass index of patients at the time of TKR was 74.6 (1.7) years and 28.1 (1.6) kg/m², respectively. Preoperative X-rays showed joint calcifications (chondrocalcinosis) in 4 cases only. The medial femoro-tibial compartment was the most severely affected in all cases, and mean (SEM) Kellgren-Lawrence score was 3.8 (0.1). All 20 OA cartilages showed CaC crystals. The mineral content represented 7.7% (8.1%) of the cartilage weight. All patients showed BCP crystals, which were associated with CPP crystals for 8 joints. CaC crystals were present in all knee joint compartments and in a mean of 4.6 (1.7) of the 8 studied areas. Crystal content was similar between superficial and deep layers and between medial and femoral compartments. BCP samples showed spherical structures, typical of biological apatite, and CPP samples showed rod-shaped or cubic structures. The expression of several genes involved in mineralization, including human homolog of progressive ankylosis, plasma-cell-membrane glycoprotein 1 and tissue-nonspecific alkaline phosphatase, was upregulated in OA chondrocytes isolated from CaC crystal-containing cartilages. Conclusions CaC crystal deposition is a widespread phenomenon in human OA articular cartilage involving the entire knee cartilage including macroscopically normal and less weight-bearing zones. Cartilage calcification is associated with altered expression of genes involved in the mineralisation process.
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Diagnosis and Clinical Manifestations of Calcium Pyrophosphate and Basic Calcium Phosphate Crystal Deposition Diseases. Rheum Dis Clin North Am 2014; 40:207-29. [DOI: 10.1016/j.rdc.2014.01.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Roemhildt ML, Gardner-Morse MG, Morgan CF, Beynnon BD, Badger GJ. Calcium phosphate particulates increase friction in the rat knee joint. Osteoarthritis Cartilage 2014; 22:706-9. [PMID: 24607485 DOI: 10.1016/j.joca.2014.02.938] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 02/20/2014] [Accepted: 02/26/2014] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Basic calcium phosphate (BCP) particulates are commonly found in cartilage and synovial fluid of osteoarthritis (OA) joints with the amount of BCP correlating with knee OA severity. How cartilage mineralization affects joint degeneration has yet to be determined. The objective of this study was to determine whether BCP in the synovial fluid affects the rat knee joint coefficient of friction (COF). METHODS The COFs of knees from both hind limbs of four mature male rats were measured post mortem using a pendulum apparatus with an infrared tracking system. The three conditions evaluated were (1) the naïve state, (2) after the injection of 100 μL of phosphate buffered saline (PBS) (sham) and (3) after the injection of 100 μL of a 1 mg/mL BCP suspension. The decrease in the pendulum amplitude (decay) was fit using two friction models: (1) a one parameter Stanton linear decay model and (2) a two parameters combination Stanton linear decay and viscous damping exponential decay model. RESULTS The COF increased 17.6% after injection of BCP compared to the naïve (P = 0.0012) and 16.0% compared to the saline injected (P = 0.0018) joints as derived from the one parameter model. The COF did not differ between naïve and saline injected joints. Results from the two parameters model showed a similar increase in COF after injection of BCP while the viscous damping was not significantly different between conditions. CONCLUSIONS The increased joint friction with BCP particulates suggests BCPs may play a role in articular surface degradation and OA development.
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Affiliation(s)
- M L Roemhildt
- McClure Musculoskeletal Research Center, Department of Orthopaedics and Rehabilitation, University of Vermont, Burlington, VT 05405, USA.
| | - M G Gardner-Morse
- McClure Musculoskeletal Research Center, Department of Orthopaedics and Rehabilitation, University of Vermont, Burlington, VT 05405, USA.
| | - C F Morgan
- McClure Musculoskeletal Research Center, Department of Orthopaedics and Rehabilitation, University of Vermont, Burlington, VT 05405, USA
| | - B D Beynnon
- McClure Musculoskeletal Research Center, Department of Orthopaedics and Rehabilitation, University of Vermont, Burlington, VT 05405, USA
| | - G J Badger
- Department of Medical Biostatistics, University of Vermont, Burlington, VT 05405, USA
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Nasi S, Ea HK, Chobaz V, van Lent P, Lioté F, So A, Busso N. Dispensable role of myeloid differentiation primary response gene 88 (MyD88) and MyD88-dependent toll-like receptors (TLRs) in a murine model of osteoarthritis. Joint Bone Spine 2014; 81:320-4. [PMID: 24703622 DOI: 10.1016/j.jbspin.2014.01.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 01/25/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVES The aim of our study was to evaluate the role of cell-membrane expressed TLRs and the signaling molecule MyD88 in a murine model of OA induced by knee menisectomy (surgical partial removal of the medial meniscus [MNX]). METHODS OA was induced in 8-10weeks old C57Bl/6 wild-type (WT) female (n=7) mice and in knockout (KO) TLR-1 (n=7), -2 (n=8), -4 (n=9) -6 (n=5), MyD88 (n=8) mice by medial menisectomy, using the sham-operated contralateral knee as a control. Cartilage destruction and synovial inflammation were evaluated by knee joint histology using the OARSI scoring method. Apoptotic chondrocytes and cartilage metabolism (collagen II synthesis and MMP-mediated aggrecan degradation) were analyzed using immunohistochemistry. RESULTS Operated knees exhibited OA features at 8weeks post-surgery compared to sham-operated ones. In menisectomized TLR-1, -2, -4, and -6 deficient mice, cartilage lesions, synovial inflammation and cartilage metabolism were similar to that in operated WT mice. Accordingly, using the same approach, we found no significant protection in MyD88-deficient mice in terms of OA progression as compared to WT littermates. CONCLUSIONS Deficiency of TLRs or their signalling molecule MyD88 did not impact on the severity of experimental OA. Our results demonstrate that MyD88-dependent TLRs are not involved in this murine OA model. Moreover, the dispensable role of MyD88, which is also an adaptor for IL-1 receptor signaling, suggests that IL-1 is not a key mediator in the development of OA. This latter hypothesis is strengthened by the lack of efficiency of IL-1β antagonist in the treatment of OA.
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Affiliation(s)
- Sonia Nasi
- DAL, Service of Rheumatology, Laboratory of Rheumatology, University of Lausanne, CHUV, Nestlé 05-5029, 1011 Lausanne, Switzerland
| | - Hang-Korng Ea
- INSERM, UMR-S 606, Hospital Lariboisière, 75010 Paris, France; University Paris Diderot (UFR de Médecine), Sorbonne Paris Cité, 75205 Paris, France
| | - Véronique Chobaz
- DAL, Service of Rheumatology, Laboratory of Rheumatology, University of Lausanne, CHUV, Nestlé 05-5029, 1011 Lausanne, Switzerland
| | | | - Frédéric Lioté
- INSERM, UMR-S 606, Hospital Lariboisière, 75010 Paris, France; University Paris Diderot (UFR de Médecine), Sorbonne Paris Cité, 75205 Paris, France
| | - Alexander So
- DAL, Service of Rheumatology, Laboratory of Rheumatology, University of Lausanne, CHUV, Nestlé 05-5029, 1011 Lausanne, Switzerland
| | - Nathalie Busso
- DAL, Service of Rheumatology, Laboratory of Rheumatology, University of Lausanne, CHUV, Nestlé 05-5029, 1011 Lausanne, Switzerland.
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Durcan L, Bolster F, Kavanagh EC, McCarthy GM. The structural consequences of calcium crystal deposition. Rheum Dis Clin North Am 2014; 40:311-28. [PMID: 24703349 DOI: 10.1016/j.rdc.2014.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Calcium pyrophosphate dihydrate and basic calcium phosphate (BCP) crystals are the most common calcium-containing crystals associated with rheumatic disease. Clinical manifestations of calcium crystal deposition include acute or chronic inflammatory and degenerative arthritides and certain forms of periarthritis. The intra-articular presence of BCP crystals correlates with the degree of radiographic degeneration. Calcium crystal deposition contributes directly to joint degeneration. Vascular calcification is caused by the deposition of calcium hydroxyapatite crystals in the arterial intima. These deposits may contribute to local inflammation and promote further calcification, thus aggravating the atherosclerotic process. Calcium crystal deposition results in substantial structural consequence in humans.
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Affiliation(s)
- Laura Durcan
- Division of Rheumatology, Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland
| | - Ferdia Bolster
- Department of Radiology, Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland
| | - Eoin C Kavanagh
- Department of Radiology, Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland
| | - Geraldine M McCarthy
- Division of Rheumatology, Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland.
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Fetuin-A-containing calciprotein particles reduce mineral stress in the macrophage. PLoS One 2013; 8:e60904. [PMID: 23577176 PMCID: PMC3620111 DOI: 10.1371/journal.pone.0060904] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 03/05/2013] [Indexed: 12/14/2022] Open
Abstract
The formation of fetuin-A-containing calciprotein particles (CPP) may facilitate the clearance of calcium phosphate nanocrystals from the extracellular fluid. These crystals may otherwise seed extra-osseous mineralization. Fetuin-A is a partially phosphorylated glycoprotein that plays a critical role in stabilizing these particles, inhibiting crystal growth and aggregation. CPP removal is thought to be predominantly mediated by cells of the reticuloendothelial system via type I and type II class A scavenger receptor (SR-AI/II). Naked calcium phosphate crystals are known to stimulate macrophages and other cell types in vitro, but little is known of the effect of CPP on these cells. We report here, for the first time, that CPP induce expression and secretion of tumour necrosis factor (TNF)-α, interleukin (IL)-1β in murine RAW 264.7 macrophages. Importantly, however, CPP induced significantly lower cytokine secretion than hydroxyapatite (HAP) crystals of equivalent size and calcium content. Furthermore, CPP only had a modest effect on macrophage viability and apoptosis, even at very high levels, compared to HAP crystals, which were strongly pro-apoptotic at much lower levels. Fetuin-A phosphorylation was found to modulate the effect of CPP on cytokine secretion and apoptosis, but not uptake via SR-AI/II. Prolonged exposure of macrophages to CPP was found to result in up-regulated expression of SR-AI/II. CPP formation may help protect against some of the pro-inflammatory and harmful effects of calcium phosphate nanocrystals, perhaps representing a natural defense system for calcium mineral stress. However, in pathological states where production exceeds clearance capacity, these particles may still stimulate pro-inflammatory and pro-apoptotic cascades in macrophages, which may be important in the pathogenesis of vascular calcification.
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Touraine S, Ea HK, Bousson V, Cohen-Solal M, Laouisset L, Chappard C, Lioté F, Laredo JD. Chondrocalcinosis of femoro-tibial and proximal tibio-fibular joints in cadaveric specimens: a high-resolution CT imaging study of the calcification distribution. PLoS One 2013; 8:e54955. [PMID: 23372802 PMCID: PMC3556076 DOI: 10.1371/journal.pone.0054955] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 12/18/2012] [Indexed: 12/31/2022] Open
Abstract
Objectives To analyze calcium deposits by computed tomography (CT) in femoro-tibial compartments and proximal tibio-fibular joints; to assess the relationship with CT-assessed osteoarthritis (OA). Methods 68 (34 pairs) cadaveric knees (mean age of 84) were scanned at high resolution CT. Menisci and hyaline cartilage calcifications in the femoro-tibial and proximal tibio-fibular joints were analyzed. OA was CT-assessed by the Kellgren and Lawrence score. Gross appearance of OA was evaluated on 29 left knees after dissection and India ink staining of tibial plateaus. Results In femoro-tibial joints, meniscal calcifications (MC) and hyaline cartilage calcifications (HCC) were detected in 23(34%) and 14(21%) knees respectively. Calcifications mainly involved the three meniscal segments and were mainly observed in all thirds of the femoro-tibial compartments. In proximal tibio-fibular joints, HCC were detected in 19(28%) knees. The association HCC-MC in femoro-tibial joints and between calcifications in femoro-tibial and proximal tibio-fibular joints was strong (p<0.0001). Femoro-tibial and proximal tibio-fibular CT-assessed OA were respectively found in 23(34%) and 19(28%) knees. HCC were significantly associated with femoro-tibial OA (p = 0.04) while MC were not (p = 0.34). OA macroscopic evaluation showed a mean surface of cartilage lesions of 35% (range 0.13–0.55). No significant difference was demonstrated regarding the CT-detection of MC, HCC or CT-assessed OA. Conclusions This is the first study to report a strong association of chondrocalcinosis between femoro-tibial and tibio-fibular joints in addition to a strong association between MC and HCC in femoro-tibial compartments. No significant relationship between chondrocalcinosis and OA was demonstrated.
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Affiliation(s)
- Sébastien Touraine
- Radiologie Ostéo-Articulaire, Hôpital Lariboisière, CNRS-UMR 7052, Laboratoire B2OA, Université Paris-Diderot, Sorbonne Paris Cité, Paris, France.
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Goldberg JS. Atherosclerosis: Viewing the Problem from a Different Perspective Including Possible Treatment Options. Lipid Insights 2011. [DOI: 10.4137/lpi.s7912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
This paper proposes that atherosclerosis is initiated by a signaling event that deposits calcium hydroxyapatite (Ca-HAP). This event is preceded by a loss of mechanical structure in the arterial wall. After Ca-HAP has been deposited, it is unlikely that it will be reabsorbed because the solubility product constant (Ksp) is very small, and the large stores of Ca+2 and PO4−3 in the bones oppose any attempts to dissolve Ca-HAP by decreasing the common ions. The hydroxide ion (OH–) of Ca-HAP can be displaced in nature by fluoride (F–) and carbonate (CO3−2) ions, and it is proposed that anions associated with cholesterol ester hydrolysis and, in very small quantities, the enolate of 7-ketocholesterol could also displace the OH– of Ca-HAP, forming an ionic bond. The free energy of hydration of Ca-HAP at 310 K is most likely negative, and the ionic radii of the anions associated with the hydrolysis of cholesterol ester are compatible with the substitution. Furthermore, examination of the pathology of atherosclerotic lesions by Raman and NMR spectroscopy and confocal microscopy supports deposition of Ca-HAP associated with cholesterol. Investigating the affinity of intermediates of cholesterol hydrolysis for Ca-HAP compared to lipoproteins such as HDL, LDL, and VLDL using isothermic titration calorimetry could add proof of this concept and may lead to the development of a new class of medications targeted at the deposition of cholesterol within Ca-HAP. Treatment of acute ischemic events as a consequence of atherosclerosis with denitrogenation and oxygenation is discussed.
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Affiliation(s)
- Joel S. Goldberg
- Pharmacy and Therapeutics Committee, Durham Veterans Affairs Medical Center, Duke University School of Medicine, 508 Fulton Street, Durham, NC 27705
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NLRP3 inflammasome plays a critical role in the pathogenesis of hydroxyapatite-associated arthropathy. Proc Natl Acad Sci U S A 2011; 108:14867-72. [PMID: 21856950 DOI: 10.1073/pnas.1111101108] [Citation(s) in RCA: 186] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The proinflammatory and catabolic cytokine IL-1β has been implicated in the pathogenesis of osteoarthritis (OA) by mediating synovial inflammation and cartilage degeneration. Although synovial macrophages are suggested to be the source of IL-1β, the mechanism remains unclear. Ectopic deposition of hydroxyapatite (HA) crystals in joints is closely associated with OA and other arthropathies, but the precise role of HA in arthritis pathogenesis has not been clearly demonstrated. Here we show that HA crystals of a particular size and shape can stimulate robust secretion of proinflammatory cytokines IL-1β and IL-18 from murine macrophages in a NLRP3 inflammasome-dependent manner. HA-induced inflammasome activation is dependent on potassium efflux, generation of reactive oxygen species (ROS), and lysosomal damage, but independent of cell death. Mice lacking the inflammasome components are protected against HA-induced neutrophilic inflammation in the air-pouch model of synovitis, and they show decreased joint pathology accompanying spontaneous HA deposition in the ank-deficient mouse model of arthritis. Moreover, calcium crystal positive synovial fluids from some OA patients exhibited inflammasome-stimulatory activity in vitro. These results demonstrate that the NLRP3 inflammasome mediates the pathological effect of HA crystals in vitro and in vivo and suggest a critical role for the inflammasome in the pathogenesis of OA.
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Detection of basic calcium phosphate crystals in osteoarthritis. Joint Bone Spine 2011; 78:358-63. [DOI: 10.1016/j.jbspin.2010.10.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2010] [Accepted: 10/18/2010] [Indexed: 12/29/2022]
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Nguyen C, Ea HK, Thiaudiere D, Reguer S, Hannouche D, Daudon M, Lioté F, Bazin D. Calcifications in human osteoarthritic articular cartilage: ex vivo assessment of calcium compounds using XANES spectroscopy. JOURNAL OF SYNCHROTRON RADIATION 2011; 18:475-480. [PMID: 21525657 DOI: 10.1107/s0909049511006984] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 02/23/2011] [Indexed: 05/30/2023]
Abstract
Calcium (Ca(2+))-containing crystals (CCs), including basic Ca(2+) phosphate (BCP) and Ca(2+) pyrophosphate dihydrate (CPPD) crystals, are associated with severe forms of osteoarthritis (OA). Growing evidence supports a role for abnormal articular cartilage mineralization in the pathogenesis of OA. However, the role of Ca(2+) compounds in this mineralization process remains poorly understood. Six patients, who underwent total knee joint replacement for primary OA, have been considered in this study. Cartilage from femoral condyles and tibial plateaus in the medial and lateral compartments was collected as 1 mm-thick slices cut tangentially to the articular surface. First, CCs presence and biochemical composition were assessed using Fourier transform infrared spectroscopy (FT-IR). Next, Ca(2+) compound biochemical form was further assessed using X-ray absorption spectroscopy (XAS) performed at the Ca(2+) K-absorption edge. Overall, 12 cartilage samples were assessed. Using FT-IR, BCP and CPPD crystals were detected in four and three out of 12 samples, respectively. Ca(2+) compound biochemical forms differed between areas with versus without CCs, when compared using XAS. The complete set of data shows that XANES spectroscopy can be used to accurately characterize sparse CCs in human OA cartilage. It is found that Ca(2+) compounds differ between calcified and non-calcified cartilage areas. In calcified areas they appear to be mainly involved in calcifications, namely Ca(2+) crystals.
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Chang L, Duy DL, Mébarek S, Popowycz F, Pellet-Rostaing S, Lemaire M, Buchet R. Synthesis and evaluation of thiophenyl derivatives as inhibitors of alkaline phosphatase. Bioorg Med Chem Lett 2011; 21:2297-301. [DOI: 10.1016/j.bmcl.2011.02.089] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 02/21/2011] [Accepted: 02/23/2011] [Indexed: 01/18/2023]
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Narayan S, Pazar B, Pazar B, Ea HK, Kolly L, Bagnoud N, Chobaz V, Lioté F, Vogl T, Holzinger D, Kai-Lik So A, Busso N. Octacalcium phosphate crystals induce inflammation in vivo through interleukin-1 but independent of the NLRP3 inflammasome in mice. ACTA ACUST UNITED AC 2011; 63:422-33. [PMID: 21279999 DOI: 10.1002/art.30147] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To determine the mechanisms involved in inflammatory responses to octacalcium phosphate (OCP) crystals in vivo. METHODS OCP crystal-induced inflammation was monitored using a peritoneal model of inflammation in mice with different deficiencies affecting interleukin-1 (IL-1) secretion (IL-1α(-/-) , IL-1β(-/-) , ASC(-/-) , and NLRP3(-/-) mice) or in mice pretreated with IL-1 inhibitors (anakinra [recombinant IL-1 receptor antagonist] and anti-IL-1β). The production of IL-1α, IL-1β, and myeloid-related protein 8 (MRP-8)-MRP-14 complex was determined by enzyme-linked immunosorbent assay. Peritoneal neutrophil recruitment and cell viability were determined by flow cytometry. Depletion of mast cells or resident macrophages was performed by pretreatment with compound 48/80 or clodronate liposomes, respectively. RESULTS OCP crystals induced peritoneal inflammation, as demonstrated by neutrophil recruitment and up-modulation of IL-1α, IL-1β, and MRP-8-MRP-14 complex, to levels comparable with those induced by monosodium urate monohydrate crystals. This OCP crystal-induced inflammation was both IL-1α- and IL-1β-dependent, as shown by the inhibitory effects of anakinra and anti-IL-1β antibody treatment. Accordingly, OCP crystal stimulation resulted in milder inflammation in IL-1α(-/-) and IL-1β(-/-) mice. Interestingly, ASC(-/-) and NLRP3(-/-) mice did not show any alteration in their inflammation status in response to OCP crystals. Depletion of the resident macrophage population resulted in a significant decrease in crystal-induced neutrophil infiltration and proinflammatory cytokine production in vivo, whereas mast cell depletion had no effect. Finally, OCP crystals induced apoptosis/necrosis of peritoneal cells in vivo. CONCLUSION These data indicate that macrophages, rather than mast cells, are important for initiating and driving OCP crystal-induced inflammation. Additionally, OCP crystals induce IL-1-dependent peritoneal inflammation without requiring the NLRP3 inflammasome.
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Affiliation(s)
- Sharmal Narayan
- Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
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Ea HK, Nguyen C, Bazin D, Bianchi A, Guicheux J, Reboul P, Daudon M, Lioté F. Articular cartilage calcification in osteoarthritis: insights into crystal-induced stress. ACTA ACUST UNITED AC 2011; 63:10-8. [PMID: 20862682 DOI: 10.1002/art.27761] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Hang-Korng Ea
- INSERM UMR-S 606, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, PRES Sorbonne Paris-Cité, and Université Paris Denis Diderot, Paris, France.
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MacMullan PA, McCarthy GM. The meniscus, calcification and osteoarthritis: a pathologic team. Arthritis Res Ther 2010; 12:116. [PMID: 20500910 PMCID: PMC2911850 DOI: 10.1186/ar2993] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Articular calcification correlates with osteoarthritis (OA) severity but its exact role in the disease process is unclear. In examining OA meniscal cell function, Sun and colleagues have shown recently that meniscal cells from end-stage OA subjects can generate calcium crystals and that genes involved in calcification are upregulated in OA meniscal cells. Also, this in vitro calcium deposition by OA menisci is inhibited by phosphocitrate. This study should catalyse further work examining the pathological contribution or otherwise of calcium crystals in OA. This would significantly aid the development of potential disease modifying agents in OA, which are currently unavailable.
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