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Sirotti S, Scanu A, Pascart T, Niessink T, Maroni P, Lombardi G, Filippou G. Calcium Pyrophosphate Crystal Formation and Deposition: Where Do we Stand and What Does the Future hold? Curr Rheumatol Rep 2024; 26:354-365. [PMID: 39088093 PMCID: PMC11377473 DOI: 10.1007/s11926-024-01161-w] [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] [Accepted: 07/23/2024] [Indexed: 08/02/2024]
Abstract
PURPOSE OF THE REVIEW Although calcium pyrophosphate deposition (CPPD) has been known since the 1960s, our understanding of its pathogenesis remains rudimentary. This review aims to illustrate the known mechanisms underlying calcium pyrophosphate (CPP) crystal formation and deposition and explore future directions in research. By examining various perspectives, from basic research to clinical and imaging assessments, as well as new emerging methodologies, we can establish a starting point for a deeper understanding of CPPD pathogenesis. RECENT FINDINGS Recent years have seen significant advances in CPPD research, particularly in the clinical field with the development of the 2023 ACR/EULAR classification criteria for CPPD disease, and in imaging with the introduction of the OMERACT ultrasonographic definitions and scoring system. However, progress in basic research has been slower. New laboratory approaches, such as Raman spectroscopy and omics sciences, offer promising insights that may help piece together the puzzle of CPPD. CPPD is a common yet understudied condition. As the population ages and CPPD becomes more prevalent, there is an urgent need to better understand the disease and the mechanisms involved in crystal formation and deposition, in order to improve diagnosis and therapeutic approaches.
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Affiliation(s)
- Silvia Sirotti
- Rheumatology Department, IRCCS Galeazzi - Sant'Ambrogio Hospital, Milan, Italy
| | - Anna Scanu
- Department of Women's and Children's Health, University of Padova, Padua, Italy
- Department of Neuroscience, University of Padova, Padua, Italy
| | - Tristan Pascart
- Department of Rheumatology, ETHICS Laboratory, Saint-Philibert Hospital, Lille Catholic University, Lille, France
| | - Tom Niessink
- Personalized Diagnostics and Therapeutics, Technical Medicine Centre, University of Twente, Enschede, the Netherlands
- Department of Rheumatology, VieCuri Medical Centre, Venlo, the Netherlands
| | - Paola Maroni
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Galeazzi - Sant'Ambrogio Hospital, Milan, Italy
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Galeazzi - Sant'Ambrogio Hospital, Milan, Italy
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, Poznań, Poland
| | - Georgios Filippou
- Rheumatology Department, IRCCS Galeazzi - Sant'Ambrogio Hospital, Milan, Italy.
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy.
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Bschorer F, Höller S, Baumhoer D, Bschorer R. Pseudogout growing from the temporomandibular joint into the middle cranial fossa. Oral Maxillofac Surg 2024; 28:441-445. [PMID: 36194300 DOI: 10.1007/s10006-022-01117-3] [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: 08/02/2022] [Accepted: 09/17/2022] [Indexed: 11/25/2022]
Abstract
Calcium pyrophosphate dihydrate deposition disease (CPDD or pseudogout) is a degenerative joint disease. It is defined by the presence of calcium pyrophosphate dihydrate crystals. It usually manifests in the knee and wrist. Manifestation in the temporomandibular joint (TMJ) is only reported in case reports. We present a patient with CPDD mimicking a malignant tumor of the TMJ. A 53-year-old woman presented with progressive pain and a slow-growing swelling of the left TMJ. Imaging showed an extensive mass in the infratemporal fossa extending into the middle cranial fossa and compressing the temporal lobe. Assuming a potential malignancy, we excised the growth, which extended into the dura. We covered the resulting tissue defect within the primary surgery using a microsurgically anastomosed scapular flap and performed further reconstructive surgeries. Calcium pyrophosphate dihydrate crystals were found in the histopathologic examination of the excised tissue, resulting in the diagnosis of CPDD. That is a benign diagnosis, but we treated it like a malignancy. This leads us to the question, was there overtreatment? Tumoral CPDD in the TMJ can be a difficult diagnosis to obtain. The treatment remains controversial, but complete excision of the mass was performed in most reported cases.
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Affiliation(s)
- Frizzi Bschorer
- Department of Oral and Maxillofacial Surgery, Helios Kliniken Schwerin, Wismarsche Straße 393-397, 19049, Schwerin, Germany.
- Department of Oral and Maxillofacial Surgery, Facial Plastic Surgery, University Medical Center Rostock, Schillingallee 35, 18057, Rostock, Germany.
| | - Sylvia Höller
- Institute of Pathology, University Hospital Basel, Schönbeinstrasse 40, 4031, Basel, CH, Switzerland
- Institute of Pathology, University Hospital Zürich, Schmelzbergstrasse 12, 8091, Zurich, CH, Switzerland
| | - Daniel Baumhoer
- Institute of Pathology, University Hospital Basel, Schönbeinstrasse 40, 4031, Basel, CH, Switzerland
| | - Reinhard Bschorer
- Department of Oral and Maxillofacial Surgery, Helios Kliniken Schwerin, Wismarsche Straße 393-397, 19049, Schwerin, Germany
- MKG-Praxis Am Stadthafen, Schliemannstr. 18, 19055, Schwerin, Germany
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Bernabei I, So A, Busso N, Nasi S. Cartilage calcification in osteoarthritis: mechanisms and clinical relevance. Nat Rev Rheumatol 2023; 19:10-27. [PMID: 36509917 DOI: 10.1038/s41584-022-00875-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2022] [Indexed: 12/14/2022]
Abstract
Pathological calcification of cartilage is a hallmark of osteoarthritis (OA). Calcification can be observed both at the cartilage surface and in its deeper layers. The formation of calcium-containing crystals, typically basic calcium phosphate (BCP) and calcium pyrophosphate dihydrate (CPP) crystals, is an active, highly regulated and complex biological process that is initiated by chondrocytes and modified by genetic factors, dysregulated mitophagy or apoptosis, inflammation and the activation of specific cellular-signalling pathways. The links between OA and BCP deposition are stronger than those observed between OA and CPP deposition. Here, we review the molecular processes involved in cartilage calcification in OA and summarize the effects of calcium crystals on chondrocytes, synovial fibroblasts, macrophages and bone cells. Finally, we highlight therapeutic pathways leading to decreased joint calcification and potential new drugs that could treat not only OA but also other diseases associated with pathological calcification.
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Affiliation(s)
- Ilaria Bernabei
- Service of Rheumatology, Department of Musculoskeletal Medicine, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Alexander So
- Service of Rheumatology, Department of Musculoskeletal Medicine, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland.
| | - Nathalie Busso
- Service of Rheumatology, Department of Musculoskeletal Medicine, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Sonia Nasi
- Service of Rheumatology, Department of Musculoskeletal Medicine, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
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Chondrocalcinosis does not affect functional outcome and prosthesis survival in patients after total or unicompartmental knee arthroplasty: a systematic review. Knee Surg Sports Traumatol Arthrosc 2022; 30:1039-1049. [PMID: 33677614 PMCID: PMC8901495 DOI: 10.1007/s00167-021-06519-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 02/19/2021] [Indexed: 12/11/2022]
Abstract
PURPOSE There are contentious data about the role calcium pyrophosphate (CPP) crystals and chondrocalcinosis (CC) play in the progression of osteoarthritis (OA), as well as in the outcomes after knee arthroplasty. Hence, the purpose of this systematic review was to analyse the clinical and functional outcome, progression of OA and prosthesis survivorship after unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA) in patients with CC compared to patients without CC. METHODS A systematic review of the literature in PubMed, Medline, Embase and Web of Science was performed using the "Preferred Reporting Items for Systematic Reviews and Meta-Analysis" (PRISMA) guidelines. Articles which reported the outcome and survival rates of prosthesis after TKA or UKA in patients with CC were included. RESULTS A total of 3718 patient knees were included in eight selected publications, with a median sample sizes of 234 knees (range 78-1000) and 954 knees (range 408-1500) for publications including UKA and TKA, respectively. At time of surgery, the mean age was 69 years and the prevalence for CC ranged from 12.6 to 36%. Chondrocalcinosis did not significantly influence the functional and clinical outcome, the implant survival as well as the radiologic progression of OA disease after UKA and TKA. CONCLUSION The presence of CPP crystals in tissue samples, synovial fluid or evidence of calcifications on preoperative radiographs did not significantly influence the postoperative functional and activity scores. It also had no significant influence on prosthesis survival rate, whether it was a UKA or a TKA. This study shows that the impact of a subclinical form of chondrocalcinosis may not be of clinical relevance in the context of arthroplasty. LEVEL OF EVIDENCE IV.
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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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He H, Wang Y, Yang Z, Ding X, Yang T, Lei G, Li H, Xie D. Association between serum zinc and copper concentrations and copper/zinc ratio with the prevalence of knee chondrocalcinosis: a cross-sectional study. BMC Musculoskelet Disord 2020; 21:97. [PMID: 32050963 PMCID: PMC7017625 DOI: 10.1186/s12891-020-3121-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 02/07/2020] [Indexed: 01/30/2023] Open
Abstract
Background Patients with chondrocalcinosis may suffer from a series of symptoms resembling acute gouty arthritis or septic arthritis, but the aetiology and pathogenesis of chondrocalcinosis have not been fully elucidated yet. This study was aimed to assess serum zinc and copper concentrations, as well as the ratio of serum copper to zinc concentrations (Cu/Zn ratio), in relation to the prevalence of knee chondrocalcinosis. Methods Data included in this analysis were retrieved from a large population-based cross-sectional study. A bilateral knee anteroposterior radiograph was obtained from each subject. Radiographic knee chondrocalcinosis was diagnosed if definite linear cartilage calcification was detected. Serum zinc and copper concentrations were measured using the spectrophotometric flow injection methods by Roche modular P800. The relations of serum zinc and copper concentrations and Cu/Zn ratio to the prevalence of knee chondrocalcinosis were examined using generalized estimating equations, respectively. Results The prevalence of knee chondrocalcinosis was 1.2% in the sample of this study (n = 12,362). In comparison with the lowest tertile, the odds ratios (ORs) of knee chondrocalcinosis adjusted by age, sex and body mass index were 0.74 (95% CI 0.50–1.09) in the second and 0.56 (95% CI 0.36–0.86) in the third tertiles of serum zinc concentrations (P for trend = 0.009), were 1.26 (95% CI 0.77–2.05) in the second and 2.01 (95% CI 1.25–3.24) in the third tertile of serum copper concentrations (P for trend = 0.003), and were 1.02 (95% CI 0.61–1.69) in the second and 2.23 (95% CI 1.38–3.59) in the third tertile of Cu/Zn ratio (P for trend < 0.001) respectively. These findings were not materially altered by adjustment for potential confounders. Conclusions The present study observed that higher serum zinc concentrations, lower serum copper concentrations or lower Cu/Zn ratio are associated with a lower prevalence of knee chondrocalcinosis in a dose-response relationship manner.
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Affiliation(s)
| | | | - Zidan Yang
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Xiang Ding
- Department of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Tuo Yang
- Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guanghua Lei
- Department of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, 410008, Hunan Province, China.,Hunan Engineering Research Center of Osteoarthritis, Changsha, Hunan, China.,Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, Hunan, China.,National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hui Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Dongxing Xie
- Department of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, 410008, Hunan Province, China.
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Wang Y, Wei J, Zeng C, Xie D, Li H, Yang T, Ding X, Cui Y, Xiong Y, Li J, Lei G. Association between chondrocalcinosis and osteoarthritis: A systematic review and meta-analysis. Int J Rheum Dis 2019; 22:1175-1182. [PMID: 31058426 DOI: 10.1111/1756-185x.13583] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 03/31/2019] [Indexed: 01/25/2023]
Abstract
AIM To systematically examine the existing literature on the associations between chondrocalcinosis (CC) and osteoarthritis (OA) at different joints, and to quantify such associations through meta-analysis. METHODS PubMed, Embase and Scopus databases were searched through from inception to June 2017. Cohort, case-control or cross-sectional studies were included if they examined the association between CC and OA. Data on the odds ratios (OR) and their 95% confidence intervals (CI) of the prevalence or progression of OA between the CC group and non-CC group with respect to the same joint were extracted. RESULTS A total of 14 studies were identified. Twelve studies were eligible for assessing the association between knee CC and knee OA. The combined data showed a positive association between them (OR = 2.84; 95% CI, 2.12-3.81; P < 0.001). Three studies were eligible for assessing the association between hip CC and hip OA. The data on the OR could only be extracted from one study (OR = 0.92; 95% CI, 0.68-1.24; P = 0.59). Two studies were eligible for assessing the association between hand CC and hand OA, and the data on the OR could only be extracted from one study which reported significant associations between CC and OA at the metacarpophalangeal joint (OR = 4.75; 95% CI, 2.12-10.64; P < 0.001) and the wrist joint (OR = 4.44; 95% CI, 3.56-5.54; P < 0.001). CONCLUSION This study established a strong association between knee CC and knee OA. However, the associations between CC and OA at the hip or hand still remain controversial and warrant further study.
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Affiliation(s)
- Yilun Wang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jie Wei
- Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Chao Zeng
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Dongxing Xie
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hui Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Tuo Yang
- Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiang Ding
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yang Cui
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yilin Xiong
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiatian Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guanghua Lei
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
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George MP, Ernste FC, Tande A, Osmon D, Mabry T, Berbari EF. Clinical Presentation, Management, and Prognosis of Pseudogout in Joint Arthroplasty: A Retrospective Cohort Study. J Bone Jt Infect 2019; 4:20-26. [PMID: 30755844 PMCID: PMC6367192 DOI: 10.7150/jbji.29983] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 12/06/2018] [Indexed: 12/24/2022] Open
Abstract
Introduction: Calcium pyrophosphate deposition disease (CPPD), or pseudogout, is rare in prosthetic joints, but can mimic prosthetic joint infection (PJI) according to case reports. The purpose of this case series is to describe the demographics, presentation, management, and outcomes of a cohort of these patients seen at our academic medical center. Methods: Patients with post-implant pseudogout, who were evaluated at our medical center between January 1, 2000 and June 30, 2016, were identified from our EHR. Data pertaining to demographics, presentation, management, and outcomes were abstracted, and patients were categorized into two groups based on presence of concomitant infection along with positive CPDD findings in synovial fluid. Results: 22 patients were included. 90.9% of cases involved a TKA. The most common indication for arthroplasty was degenerative joint disease. Only four patients had a history of previous gout or pseudogout, three of which belonged to the group with no evidence of concomitant joint infection. Clinical features for patients without concomitant infection included pain (100%), swelling at the joint (88.9%), redness (33.3%), fever (22.2%), and decreased range of motion (100%). 45.5% of patients received antibiotics prior to joint aspiration (44.4% of patients with negative synovial fluid cultures, 46.2% of patients with concomitant infection). Conclusion: Our study suggests similar clinical presentation between post-implant pseudogout and PJI. Among patients with pseudogout as well as in those with PJI, the first dose of antibiotics should not be given before sampling for synovial culture. Unfortunately, many patients receive antibiotics prior to culture ascertainment, which raises concern for antibiotic overuse.
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Affiliation(s)
- Merit P George
- Mayo Clinic School of Medicine. 200 1st St SW, Rochester, MN 55905
| | - Floranne C Ernste
- Division of Rheumatology, Department of Internal Medicine, Mayo Clinic School of Graduate Medical Education. 200 1st St SW, Rochester, MN 55905
| | - Aaron Tande
- Division of Infectious Diseases, Department of Internal Medicine, Mayo Clinic School of Graduate Medical Education. 200 1st St SW, Rochester, MN 55905
| | - Douglas Osmon
- Division of Infectious Diseases, Department of Internal Medicine, Mayo Clinic School of Graduate Medical Education. 200 1st St SW, Rochester, MN 55905
| | - Tad Mabry
- Division of Orthopedic Surgery, Department of Surgery, Mayo Clinic School of Graduate Medical Education. 200 1st St SW, Rochester, MN 55905
| | - Elie F Berbari
- Division of Infectious Diseases, Department of Internal Medicine, Mayo Clinic School of Graduate Medical Education. 200 1st St SW, Rochester, MN 55905
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Krishnan Y, Grodzinsky AJ. Cartilage diseases. Matrix Biol 2018; 71-72:51-69. [PMID: 29803938 PMCID: PMC6146013 DOI: 10.1016/j.matbio.2018.05.005] [Citation(s) in RCA: 225] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/14/2018] [Accepted: 05/15/2018] [Indexed: 01/13/2023]
Abstract
Hyaline cartilages, fibrocartilages and elastic cartilages play multiple roles in the human body including bearing loads in articular joints and intervertebral discs, providing joint lubrication, forming the external ears and nose, supporting the trachea, and forming the long bones during development and growth. The structure and organization of cartilage's extracellular matrix (ECM) are the primary determinants of normal function. Most diseases involving cartilage lead to dramatic changes in the ECM which can govern disease progression (e.g., in osteoarthritis), cause the main symptoms of the disease (e.g., dwarfism caused by genetically inherited mutations) or occur as collateral damage in pathological processes occurring in other nearby tissues (e.g., osteochondritis dissecans and inflammatory arthropathies). Challenges associated with cartilage diseases include poor understanding of the etiology and pathogenesis, delayed diagnoses due to the aneural nature of the tissue and drug delivery challenges due to the avascular nature of adult cartilages. This narrative review provides an overview of the clinical and pathological features as well as current treatment options available for various cartilage diseases. Late breaking advances are also described in the quest for development and delivery of effective disease modifying drugs for cartilage diseases including osteoarthritis, the most common form of arthritis that affects hundreds of millions of people worldwide.
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Affiliation(s)
- Yamini Krishnan
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA
| | - Alan J Grodzinsky
- Department of Biological Engineering, MIT, Cambridge, MA 02139, USA; Department of Mechanical Engineering, MIT, Cambridge, MA 02139, USA; Department of Electrical Engineering and Computer Science, MIT, Cambridge, MA 02139, USA.
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10
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O'Grady S, Morgan MP. Microcalcifications in breast cancer: From pathophysiology to diagnosis and prognosis. Biochim Biophys Acta Rev Cancer 2018; 1869:310-320. [PMID: 29684522 DOI: 10.1016/j.bbcan.2018.04.006] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/18/2018] [Accepted: 04/18/2018] [Indexed: 01/29/2023]
Abstract
The implementation of mammographic screening programmes in many countries has been linked to a marked increase in early detection and improved prognosis for breast cancer patients. Breast tumours can be detected by assessing several features in mammographic images but one of the most common are the presence of small deposits of calcium known as microcalcifications, which in many cases may be the only detectable sign of a breast tumour. In addition to their efficacy in the detection of breast cancer, the presence of microcalcifications within a breast tumour may also convey useful prognostic information. Breast tumours with associated calcifications display an increased rate of HER2 overexpression as well as decreased survival, increased risk of recurrence, high tumour grade and increased likelihood of spread to the lymph nodes. Clearly, the presence of microcalcifications in a tumour is a clinically significant finding, suggesting that a detailed understanding of their formation may improve our knowledge of the early stages of breast tumourigenesis, yet there are no reports which attempt to bring together recent basic science research findings and current knowledge of the clinical significance of microcalcifications. This review will summarise the most current understanding of the formation of calcifications within breast tissue and explore their associated clinical features and prognostic value.
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Affiliation(s)
- S O'Grady
- Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, 123 St Stephen's Green, Dublin 2, Ireland
| | - M P Morgan
- Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, 123 St Stephen's Green, Dublin 2, Ireland.
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Sun Y, Roberts A, Mauerhan DR, Cox M, Hanley EN. Biological effects and osteoarthritic disease-modifying activity of small molecule CM-01. J Orthop Res 2018; 36:309-317. [PMID: 28544002 DOI: 10.1002/jor.23616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 05/19/2017] [Indexed: 02/04/2023]
Abstract
Phosphocitrate inhibits cartilage degeneration, however, the prospect of phosphocitrate as an oral disease modifying drug might be limited. The purpose of this study was to investigate the biological effects and disease-modifying activity of a phosphocitrate "analog," CM-01 (Carolinas Molecule-01), and test the hypothesis that CM-01 is a disease modifying drug for osteoarthritis therapy. The effects of CM-01 on calcium crystal-induced expression of matrix metalloproteinase-1 and interleukin-1 beta, cell-mediated calcification and production of proteoglycan by chondrocytes were examined in cell cultures. Disease-modifying activity was examined using Hartley guinea pig model of posttraumatic osteoarthritis. Cartilage degeneration in untreated and CM-01 treated guinea pigs was examined with Indian ink and Safranin-O-fast green. Levels of matrix metalloproteinase-13, ADAM metallopeptidase with thrombospondin type 1 motif 5, chemokine (C-C motif) ligand 5, and cyclooxygenase 2 were examined with immunostaining. CM-01 inhibited crystal-induced expression of matrix metalloproteinase-1 and interleukin-1β, reduced cell-mediated calcification, and stimulated the production of proteoglycan by chondrocytes. In Hartley guinea pigs, CM-01 not only reduced damages in articular surface but also reduced resorption of calcified zone cartilage. The reduction in cartilage degeneration was accompanied by decreased levels of matrix metalloproteinase-13, ADAM metallopeptidase with thrombospondin type 1 motif 5, chemokine (C-C motif) ligand 5 and cyclooxygenase 2. These findings confirmed that CM-01 is a promising candidate to be tested as an oral drug for human OA therapy. CM-01 exerted its disease-modifying activity on osteoarthritis, in part, by inhibiting the production of matrix-degrading enzymes and a molecular program resembling the endochondral pathway of ossification. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:309-317, 2018.
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Affiliation(s)
- Yubo Sun
- Department of Orthopedic Surgery, Carolinas Medical Center, PO Box 32861, Charlotte, North Carolina, 28232
| | - Andrea Roberts
- Department of Orthopedic Surgery, Carolinas Medical Center, PO Box 32861, Charlotte, North Carolina, 28232
| | - David R Mauerhan
- Department of Orthopedic Surgery, Carolinas Medical Center, PO Box 32861, Charlotte, North Carolina, 28232
| | - Michael Cox
- Department of Orthopedic Surgery, Carolinas Medical Center, PO Box 32861, Charlotte, North Carolina, 28232
| | - Edward N Hanley
- Department of Orthopedic Surgery, Carolinas Medical Center, PO Box 32861, Charlotte, North Carolina, 28232
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12
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Sun Y, Franklin AM, Mauerhan DR, Hanley EN. Biological Effects of Phosphocitrate on Osteoarthritic Articular Chondrocytes. Open Rheumatol J 2017; 11:62-74. [PMID: 28659999 PMCID: PMC5470061 DOI: 10.2174/1874312901711010062] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/06/2017] [Accepted: 04/08/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Phosphocitrate (PC) inhibits osteoarthritis (OA) in Hartley guinea pigs. However, the underlying molecular mechanisms remain poorly understood. OBJECTIVE This study sought to examine the biological effect of PC on OA chondrocytes and test the hypothesis that PC may exert its OA disease modifying effect, in part, by inhibiting the expression of genes implicated in OA disease process and stimulating the production of extracellular matrices. METHOD OA chondrocytes were cultured in the absence or presence of PC. Total RNA was extracted and subjected to microarray analyses. The effect of PC on proliferation and chondrocyte-mediated calcification were examined in monolayer culture. The effect of PC on the production of extracellular matrices was examined in micromass culture. RESULTS PC downregulated the expression of numerous genes classified in proliferation and apoptosis while upregulating the expression of many genes classified in transforming growth factor-β (TGF-β) receptor signaling pathway and ossification. PC also downregulated the expressions of many genes classified in inflammatory response and Wnt receptor signaling pathways. Consistent with its effect on the expression of genes classified in proliferation, ossification, and skeletal development, PC inhibited the proliferation of OA chondrocytes and chondrocyte-mediated calcification while stimulating the production of extracellular matrices. CONCLUSION PC may exert its OA disease modifying effect, in part, through a crystal-independent mechanism or by inhibiting the expressions of many genes implicated in OA disease process, and at the same time, stimulating the expression of genes implicated in chondroprotection and production of extracellular matrices.
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Affiliation(s)
- Yubo Sun
- Department of Orthopedic Surgery, Cannon Research, Carolinas Medical Center, PO Box 32861, Charlotte, NC 28232, USA
| | - Atiya M Franklin
- Department of Orthopedic Surgery, Cannon Research, Carolinas Medical Center, PO Box 32861, Charlotte, NC 28232, USA
| | - David R Mauerhan
- Department of Orthopedic Surgery, Cannon Research, Carolinas Medical Center, PO Box 32861, Charlotte, NC 28232, USA
| | - Edward N Hanley
- Department of Orthopedic Surgery, Cannon Research, Carolinas Medical Center, PO Box 32861, Charlotte, NC 28232, USA
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Bridges KJ, Bullis CL, Wanchu A, Than KD. Pseudogout of the cervical and thoracic spine mimicking infection after lumbar fusion: case report. J Neurosurg Spine 2017; 27:145-149. [PMID: 28524751 DOI: 10.3171/2016.12.spine16979] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Pseudogout is a form of acute calcium pyrophosphate deposition (CPPD) disease that typically afflicts the elderly. CPPD commonly involves larger joints, such as the knees, wrists, shoulders, and hips, and has been known to involve the spine. The authors report the case of a 66-year-old woman with a recent history of lumbar laminectomy and fusion who presented 5 weeks postprocedure with a clinical and radiographic picture consistent with multilevel skip lesions involving the cervical and thoracic spine, thoracic discitis, and epidural abscess. Serial blood cultures and repeat biopsy samples were sterile. Subsequent wrist and ankle erythema, pain, and swelling led to synovial fluid analysis, and pseudogout was diagnosed. She was treated with an interleukin-1 inhibitor with immediate symptom relief. To the authors' knowledge, this is only the second report of spinal pseudogout presenting with a clinical and radiographic picture consistent with discitis and epidural abscess. This report is the first to report skip lesions of pseudogout occurring throughout the spine that are uniquely remote from a recent lumbar surgery.
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Affiliation(s)
| | | | - Ajay Wanchu
- Division of Arthritis & Rheumatic Diseases, Department of Medicine, Oregon Health & Science University, Portland, Oregon
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Affiliation(s)
- Ann K Rosenthal
- From the Division of Rheumatology, Department of Medicine, Medical College of Wisconsin (A.K.R., L.M.R.), and the Department of Medicine, Zablocki Veterans Affairs Medical Center (A.K.R.) - both in Milwaukee
| | - Lawrence M Ryan
- From the Division of Rheumatology, Department of Medicine, Medical College of Wisconsin (A.K.R., L.M.R.), and the Department of Medicine, Zablocki Veterans Affairs Medical Center (A.K.R.) - both in Milwaukee
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15
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Rosenthal AK, Ryan LM. Nonpharmacologic and pharmacologic management of CPP crystal arthritis and BCP arthropathy and periarticular syndromes. Rheum Dis Clin North Am 2014; 40:343-56. [PMID: 24703351 DOI: 10.1016/j.rdc.2014.01.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Calcium crystal arthritis is often unrecognized, poorly managed, and few effective therapies are available. The most common types of calcium crystals causing musculoskeletal syndromes are calcium pyrophosphate (CPP) and basic calcium phosphate (BCP). Associated syndromes have different clinical presentations and divergent management strategies. Acute CPP arthritis is treated similarly to acute gouty arthritis, whereas chronic CPP and BCP arthropathy may respond to strategies used for osteoarthritis. Calcific tendonitis is treated with a variety of interventions designed to dissolve BCP crystals. A better understanding of the causes and larger well-planned trials of current therapies will lead to improved care.
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Affiliation(s)
- Ann K Rosenthal
- Division of Rheumatology, Department of Medicine, Zablocki VA Medical Center and The Medical College of Wisconsin, FEOB 4th Floor, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA.
| | - Lawrence M Ryan
- Division of Rheumatology, Department of Medicine, Zablocki VA Medical Center and The Medical College of Wisconsin, FEOB 4th Floor, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
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16
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Liu YZ, Jackson AP, Cosgrove SD. Contribution of calcium-containing crystals to cartilage degradation and synovial inflammation in osteoarthritis. Osteoarthritis Cartilage 2009; 17:1333-40. [PMID: 19447216 DOI: 10.1016/j.joca.2009.04.022] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2009] [Revised: 04/09/2009] [Accepted: 04/28/2009] [Indexed: 02/02/2023]
Abstract
OBJECTIVES The role of calcium phosphate and pyrophosphate crystals in osteoarthritis (OA) is unclear: are they a symptom of the damage that occurs to the joint or a key intermediate in the progression of inflammation and joint damage that occurs in OA? The proinflammatory and catabolic response of synthetic calcium phosphate and pyrophosphate crystals and crystals extracted from human osteoarthritic knee cartilage has been investigated. The crystal forms eliciting a response have been characterised allowing a comparison of the biological effects of synthetic and native calcium crystals on human osteoarthritic chondrocytes and synoviocytes to be carried out. METHODS Calcium phosphate and pyrophosphate crystals were synthesised in vitro and their crystal forms characterised by X-ray powder diffraction (XRPD). The inorganic crystalline material present in human osteoarthritic cartilage was extracted and its structural composition elucidated by XRPD. These crystals were applied to human primary osteoarthritic chondrocytes and synoviocytes and the production of proinflammatory and catabolic mediators measured. RESULTS The crystals extracted from human osteoarthritic knee cartilage were identified as consisting of a mixture of monoclinic and triclinic calcium pyrophosphate dihydrate (m-CPPD and t-CPPD). These crystals elicited an inflammatory and catabolic response in human primary osteoarthritic chondrocytes and synoviocytes as measured by an increase in nitric oxide (NO), matrix metalloproteinase 13 (MMP-13) and prostaglandin E2 (PGE(2)) production. NO, MMP-13 and PGE(2) production was also increased when the synthetic calcium hydrogen phosphate dihydrate (DCPD) and calcium pyrophosphate hydrates were applied to the cells. CONCLUSIONS Crystals extracted from human osteoarthritic knee cartilage induce the production of proinflammatory and catabolic mediators (NO, MMP-13 and PGE(2)) in human primary chondrocytes and synoviocytes. Synthetic calcium phosphate and pyrophosphate crystals elicit a similar response in those cells. Our findings suggest that these crystals could contribute to cartilage degradation and synovitis in OA.
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Affiliation(s)
- Y Z Liu
- Department of Bioscience, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, UK.
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17
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Abstract
PURPOSE OF REVIEW Calcium pyrophosphate dihydrate and basic calcium phosphate crystals are the two most common calcium-containing crystals involved in rheumatic diseases. Recent literature concerning their role in the pathogenesis of osteoarthritis is reviewed. RECENT FINDINGS In some instances, these calcium crystals might worsen osteoarthritis cartilage destruction. Laboratory investigations have identified determinants of cartilage calcification, especially a better characterization of matrix vesicle content and a better understanding of the regulation of inorganic pyrophosphate and phosphate concentration. In-vitro studies have highlighted new pathogenic mechanisms of calcium crystal-induced cell activation. Several intracellular signalling pathways are activated by calcium crystals. Recent studies suggested the implication of the inflammasome complex and a pivotal role for IL-1 in pseudogout attacks and chondrocyte apoptosis in basic calcium phosphate crystal-related arthropathies. SUMMARY Animal models of osteoarthritis and in-vitro studies using calcium pyrophosphate dihydrate and basic calcium phosphate crystals will improve our knowledge of these common crystals and could suggest new targets for drugs, as these common diseases are 'orphan' with respect to therapy.
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McCarthy GM, Cheung HS. Point: Hydroxyapatite crystal deposition is intimately involved in the pathogenesis and progression of human osteoarthritis. Curr Rheumatol Rep 2009; 11:141-7. [PMID: 19296887 DOI: 10.1007/s11926-009-0020-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The cause of osteoarthritis (OA), the most common form of arthritis, is most likely multifactorial. No drug exists to slow the progression or reverse OA disease progression. Ample data support a key role of calcium-containing crystals, such as hydroxyapatite, in OA pathogenesis. The presence of these crystals, far higher in OA than in any other form of arthritis, correlates with the degree of radiographic degeneration. Calcium-containing crystals have potent biologic effects in vitro that emphasize their pathogenic potential. OA-associated matrix and chondrocyte alterations play an intimate role in the crystal deposition process. A major difficulty has been the lack of a simple technique for crystal identification in affected joints. Enhanced effort is needed to establish calcium-containing crystals as a therapeutic target in OA, as current data suggest an intimate association in its pathogenesis and progression.
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Affiliation(s)
- Geraldine M McCarthy
- Department of Medicine, University College Dublin and Mater Misericordiae University Hospital, Eccles St, Dublin 7, Ireland
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Chefetz I, Kohno K, Izumi H, Uitto J, Richard G, Sprecher E. GALNT3, a gene associated with hyperphosphatemic familial tumoral calcinosis, is transcriptionally regulated by extracellular phosphate and modulates matrix metalloproteinase activity. BIOCHIMICA ET BIOPHYSICA ACTA 2009; 1792:61-7. [PMID: 18976705 PMCID: PMC3169302 DOI: 10.1016/j.bbadis.2008.09.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2008] [Revised: 09/29/2008] [Accepted: 09/29/2008] [Indexed: 12/16/2022]
Abstract
GALNT3 encodes UDP-N-acetyl-alpha-d-galactosamine: polypeptide N-acetylgalactosaminyl-transferarase 3 (ppGalNacT3), a glycosyltransferase which has been suggested to prevent proteolysis of FGF23, a potent phosphaturic protein. Accordingly, loss-of-function mutations in GALNT3 cause hyperphosphatemic familial tumoral calcinosis (HFTC), a rare autosomal recessive disorder manifesting with increased kidney reabsorption of phosphate, resulting in severe hyperphosphatemia and widespread ectopic calcifications. Although these findings definitely attribute a role to ppGalNacT3 in the regulation of phosphate homeostasis, little is currently known about the factors regulating GALNT3 expression. In addition, the effect of decreased GALNT3 expression in peripheral tissues has not been explored so far. In the present study, we demonstrate that GALNT3 expression is under the regulation of a number of factors known to be associated with phosphate homeostasis, including inorganic phosphate itself, calcium and 1,25-dihydroxyvitamin D(3). In addition, we show that decreased GALNT3 expression in human skin fibroblasts leads to increased expression of FGF7 and of matrix metalloproteinases, which have been previously implicated in the pathogenesis of ectopic calcification. Thus, the present data suggest that ppGalNacT3 may play a role in peripheral tissues of potential relevance to the pathogenesis of disorders of phosphate metabolism.
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Affiliation(s)
- Ilana Chefetz
- Laboratory of Molecular Dermatology and Department of Dermatology, Rambam Health Care Campus, Haifa, Israel
- Center for Translational Genetics, Rappaport Institute for Research in the Medical Sciences, Faculty of Medicine Haifa, Technion – Israel Institute of Technology, Haifa, Israel
| | - Kimitoshi Kohno
- Department of Molecular Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hiroto Izumi
- Department of Molecular Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Gabriele Richard
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
- GeneDx, Gaithersburg, Maryland, USA
| | - Eli Sprecher
- Laboratory of Molecular Dermatology and Department of Dermatology, Rambam Health Care Campus, Haifa, Israel
- Center for Translational Genetics, Rappaport Institute for Research in the Medical Sciences, Faculty of Medicine Haifa, Technion – Israel Institute of Technology, Haifa, Israel
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Kong MYF, Gaggar A, Li Y, Winkler M, Blalock JE, Clancy JP. Matrix metalloproteinase activity in pediatric acute lung injury. Int J Med Sci 2009; 6:9-17. [PMID: 19159011 PMCID: PMC2610341 DOI: 10.7150/ijms.6.9] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2008] [Accepted: 12/15/2008] [Indexed: 01/11/2023] Open
Abstract
Pediatric Acute Lung Injury (ALI) is associated with a high mortality and morbidity, and dysregulation of matrix metalloproteinases (MMPs) may play an important role in the pathogenesis and evolution of ALI. Here we examined MMP expression and activity in pediatric ALI compared with controls. MMP-8, -9, and to a lesser extent, MMP-2, -3, -11 and -12 were identified at higher levels in lung secretions of pediatric ALI patients compared with controls. Tissue Inhibitor of Matrix metalloproteinase-1 (TIMP-1), a natural inhibitor of MMPs was detected in most ALI samples, but MMP-9:TIMP-1 ratios were high relative to controls. In subjects who remained intubated for >or=10 days, MMP-9 activity decreased, with > 80% found in the latent form. In contrast, almost all MMP-8 detected at later disease course was constitutively active. Discriminating MMP-9:TIMP-1 ratios were found in those who had a prolonged ALI course. These results identify a specific repertoire of MMP isoforms in the lung secretions of pediatric ALI patients, and demonstrate inverse changes in MMPs -8 and -9 with protracted disease.
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Affiliation(s)
- Michele Y F Kong
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL 35233, USA.
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Fitzsimmons RJ, Gordon SL, Kronberg J, Ganey T, Pilla AA. A pulsing electric field (PEF) increases human chondrocyte proliferation through a transduction pathway involving nitric oxide signaling. J Orthop Res 2008; 26:854-9. [PMID: 18240331 DOI: 10.1002/jor.20590] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A potential treatment modality for joint pain due to cartilage degradation is electromagnetic fields (EMF) that can be delivered, noninvasively, to chondrocytes buried within cartilage. A pulsed EMF in clinical use for recalcitrant bone fracture healing has been modified to be delivered as a pulsed electric field (PEF) through capacitive coupling. It was the objective of this study to determine whether the PEF signal could have a direct effect on chondrocytes in vitro. This study shows that a 30-min PEF treatment can increase DNA content of chondrocyte monolayer by approximately 150% at 72 h poststimulus. Studies intended to explore the biological mechanism showed this PEF signal increased nitric oxide measured in culture medium and cGMP measured in cell extract within the 30-min exposure period. Increasing calcium in the culture media or adding the calcium ionophore A23187, without PEF treatment, also significantly increased short-term nitric oxide production. The inhibitor W7, which blocks calcium/calmodulin, prevented the PEF-stimulated increase in both nitric oxide and cGMP. The inhibitor L-NAME, which blocks nitric oxide synthase, prevented the PEF-stimulated increase in nitric oxide, cGMP, and DNA content. An inhibitor of guanylate cyclase (LY83583) blocked the PEF-stimulated increase in cGMP and DNA content. A nitric oxide donor, when present for only 30 min, increased DNA content 72 h later. Taken together, these results suggest the transduction pathway for PEF-stimulated chondrocyte proliferation involves nitric oxide and the production of nitric oxide may be the result of a cascade that involves calcium, calmodulin, and cGMP production.
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Affiliation(s)
- Robert J Fitzsimmons
- The Technical Basis LLC, 24769 Redlands Blvd, Suite E, Loma Linda, California 92354, USA.
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Molloy ES, Morgan MP, Doherty GA, McDonnell B, Hilliard M, O'Byrne J, Fitzgerald DJ, McCarthy GM. Mechanism of basic calcium phosphate crystal-stimulated cyclo-oxygenase-1 up-regulation in osteoarthritic synovial fibroblasts. Rheumatology (Oxford) 2008; 47:965-71. [DOI: 10.1093/rheumatology/ken144] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Effects of pulsed and sinusoid electromagnetic fields on human chondrocytes cultivated in a collagen matrix. Rheumatol Int 2008; 28:971-7. [DOI: 10.1007/s00296-008-0565-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2007] [Accepted: 03/08/2008] [Indexed: 10/22/2022]
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Spinale FG. Myocardial Matrix Remodeling and the Matrix Metalloproteinases: Influence on Cardiac Form and Function. Physiol Rev 2007; 87:1285-342. [DOI: 10.1152/physrev.00012.2007] [Citation(s) in RCA: 855] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
It is now becoming apparent that dynamic changes occur within the interstitium that directly contribute to adverse myocardial remodeling following myocardial infarction (MI), with hypertensive heart disease and with intrinsic myocardial disease such as cardiomyopathy. Furthermore, a family of matrix proteases, the matrix metalloproteinases (MMPs) and the tissue inhibitors of MMPs (TIMPs), has been recognized to play an important role in matrix remodeling in these cardiac disease states. The purpose of this review is fivefold: 1) to examine and redefine the myocardial matrix as a critical and dynamic entity with respect to the remodeling process encountered with MI, hypertension, or cardiomyopathic disease; 2) present the remarkable progress that has been made with respect to MMP/TIMP biology and how it relates to myocardial matrix remodeling; 3) to evaluate critical translational/clinical studies that have provided a cause-effect relationship between alterations in MMP/TIMP regulation and myocardial matrix remodeling; 4) to provide a critical review and analysis of current diagnostic, prognostic, and pharmacological approaches that utilized our basic understanding of MMP/TIMPs in the context of cardiac disease; and 5) most importantly, to dispel the historical belief that the myocardial matrix is a passive structure and supplant this belief that the regulation of matrix protease pathways such as the MMPs and TIMPs will likely yield a new avenue of diagnostic and therapeutic strategies for myocardial remodeling and the progression to heart failure.
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Molloy ES, Morgan MP, McDonnell B, O'Byrne J, McCarthy GM. BCP crystals increase prostacyclin production and upregulate the prostacyclin receptor in OA synovial fibroblasts: potential effects on mPGES1 and MMP-13. Osteoarthritis Cartilage 2007; 15:414-20. [PMID: 17123841 DOI: 10.1016/j.joca.2006.10.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2006] [Accepted: 10/04/2006] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate the potential involvement of prostacyclin in basic calcium phosphate (BCP) crystal-induced responses in osteoarthritic synovial fibroblasts (OASF). METHODS OASF grown in culture were stimulated with BCP crystals. Prostacyclin production was measured by enzyme immunoassay. Expression of messenger RNA (mRNA) transcripts was assessed by real-time polymerase chain reaction (PCR). Expression of prostacyclin synthase (PGIS) and the prostacyclin (IP) receptor was measured. The effects of iloprost, a prostacyclin analogue, on expression of genes implicated in osteoarthritis such as microsomal prostaglandin E2 synthase 1 (mPGES1) and matrix metalloproteinases (MMPs) were also studied. FPT inhibitor II, a farnesyl transferase inhibitor, was used to antagonize iloprost-induced responses. RESULTS BCP crystal stimulation led to a five-fold increase in prostacyclin production in OASF compared to untreated cells. This induction was attenuated by cyclooxygenase (COX)-2 and COX-1 inhibition at 4 and 32h, respectively. PGIS and IP receptor transcripts were constitutively expressed in OASF. BCP crystals upregulated IP receptor expression two-fold. While iloprost diminished BCP crystal-stimulated IP receptor upregulation, the inhibitory effect of iloprost was blocked by the farnesyl transferase inhibitor. In addition, iloprost upregulated mPGES1 and downregulated MMP-13 expression in BCP crystal-stimulated OASF, effects that were not influenced by the farnesyl transferase inhibitor. CONCLUSIONS These data showed for the first time that BCP crystals can increase prostacyclin production and upregulate expression of the IP receptor in OASF. The potential of prostacyclin to influence BCP crystal-stimulated responses was supported by the effects of iloprost on the expression of the IP receptor, mPGES1 and MMP-13. These data demonstrate the potential involvement of prostacyclin in BCP crystal-associated osteoarthritis (OA) and suggest that inhibition of PG synthesis with non-steroidal anti-inflammatory drugs may have both deleterious and beneficial effects in BCP crystal-associated OA.
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Affiliation(s)
- E S Molloy
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons of Ireland, and National Orthopaedic Hospital, Dublin, Ireland.
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Major ML, Cheung HS, Misra RP. Basic calcium phosphate crystals activate c-fos expression through a Ras/ERK dependent signaling mechanism. Biochem Biophys Res Commun 2007; 355:654-60. [PMID: 17307136 PMCID: PMC1855205 DOI: 10.1016/j.bbrc.2007.01.177] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2007] [Accepted: 01/31/2007] [Indexed: 10/23/2022]
Abstract
Diseases caused by calcium pyrophosphate dihydrate (CPPD) and basic calcium phosphate (BCP) crystals occur frequently in osteoarthritic joints. Both crystals induce mitogenesis, metalloproteinase synthesis and secretion by fibroblasts and chondrocytes, promoting degradation of articular tissue. We investigated the mechanism by which BCP activates the c-fos proto-oncogene, which has been shown to activate various matrix metalloproteinases (MMPs). We demonstrate that BCP crystals induce c-fos expression primarily through a Ras/ERK-dependent signaling mechanism targeting two highly conserved regulatory binding sites, the serum response element (SRE) and the cAMP response element (CRE). These results establish a calcium crystal induced, calcium/calmodulin independent, signaling pathway in which BCP crystals activate Ras/MAPK, which can directly target an SRF-containing transcription factor complex, to induce fibroblasts to secrete metalloproteinases.
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Affiliation(s)
| | - Herman S. Cheung
- Geriatric Research Education and Clinical Center, VA Medical Center and Department of Medicine, University of Miami School of Medicine, Miami, FL 33101
| | - Ravi P. Misra
- *To whom correspondence should be addressed: Tel. # 414-456-8433, Fax # 414-456-6510, Internet:
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Turhanen PA, Demadis KD, Peräniemi S, Vepsäläinen JJ. A Novel Strategy for the Preparation of Naturally Occurring Phosphocitrate and Its Partially Esterified Derivatives. J Org Chem 2007; 72:1468-71. [PMID: 17288391 DOI: 10.1021/jo061709c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel method for the synthesis of phosphocitrate (1, PC) starting from triethyl ester of citric acid and MeOPCl2 is described. The method is based on selective stepwise hydrolysis of ester moieties from the intermediate Me-O-P(O)(Cl)(Z) (Z = triethylcitrate), 4a, which also allows one to prepare partially esterified derivatives of PC with good yield and purity without chromatographic purifications.
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Affiliation(s)
- Petri A Turhanen
- Department of Chemistry, University of Kuopio, P.O. Box 1627, FIN-70211, Kuopio, Finland.
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Cheung HS, Sallis JD, Demadis KD, Wierzbicki A. Phosphocitrate blocks calcification-induced articular joint degeneration in a guinea pig model. ACTA ACUST UNITED AC 2006; 54:2452-61. [PMID: 16869019 DOI: 10.1002/art.22017] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Calcium deposition occurs frequently in osteoarthritic (OA) joints. However, evidence for a causal role of calcification in cartilage degeneration is inferential. The present study was undertaken to examine the role of calcification in OA disease progression and to evaluate a formulation of phosphocitrate (PC) as a potential therapeutic agent. METHODS We have identified a guinea pig OA model in which meniscal calcification appears to correlate with aging and disease progression. We synthesized a new formulation of PC, [CaNa(PC)2(H2O)](n) (CaNaPC), which is a potent antimineralization agent and a specific inhibitor of crystal-induced biologic effects. After weekly treatment of guinea pigs with experimental OA with CaNaPC for 3 months, we examined calcification in menisci and cartilage degeneration. As a control, we examined whether similar CaNaPC treatment had any therapeutic effect in a hemi-meniscectomy model in which there is no known crystal involvement. RESULTS Meniscal calcification correlated with cartilage degeneration in this animal model. PC treatment led to significant reduction of calcium deposits and arrested OA disease progression. Similar treatment had no effect in the hemi-meniscectomy model. CONCLUSION CaNaPC diminishes mineralization in a cutaneous calcergy model and a model of OA in which intraarticular mineralization is a prominent feature. In the OA guinea pig model, inhibition of calcification is accompanied by diminished cartilage degeneration. CaNaPC has no therapeutic effect in the hemi-meniscectomy model. We conclude that pathologic calcification may initiate or amplify processes leading to cartilage degeneration and that CaNaPC may interrupt such a pathway.
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George J. Mineral metabolism in dimethylnitrosamine-induced hepatic fibrosis. Clin Biochem 2006; 39:984-91. [PMID: 16959231 DOI: 10.1016/j.clinbiochem.2006.07.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2006] [Revised: 06/30/2006] [Accepted: 07/15/2006] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Complications such as ascites during the pathogenesis of hepatic fibrosis and cirrhosis may lead to several abnormalities in mineral metabolism. In the present investigation, we have monitored serum and liver concentrations of calcium, magnesium, sodium and potassium during experimentally induced hepatic fibrosis in rats. DESIGN AND METHODS The liver injury was induced by intraperitoneal injections of dimethylnitrosamine (DMN; N-nitrosodimethylamine, NDMA) in doses 1 mg/100 g body weight on 3 consecutive days of each week over a period of 21 days. Calcium, magnesium, sodium and potassium were measured by atomic absorption spectrophotometry in the serum and liver on days 7, 14 and 21 after the start of DMN administration. RESULTS Negative correlations were observed between liver function tests and serum mineral levels, except with albumin. Calcium, magnesium, potassium and sodium concentrations in the serum were decreased after the induction of liver injury. The liver calcium content was increased after DMN treatment. No change occurred in liver sodium content. However, magnesium and potassium content was significantly reduced in the hepatic tissue. CONCLUSIONS The results suggest that DMN-induced hepatic fibrosis plays certain role in the alteration of essential elements. The low levels of albumin and the related ascites may be one of the major causes of the imbalance of mineral metabolism in hepatic fibrosis and further aggravation of the disease.
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Affiliation(s)
- Joseph George
- Department of Biochemistry, Central Leather Research Institute, Adyar, Madras 600 020, India.
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Molloy ES, McCarthy GM. Calcium crystal deposition diseases: update on pathogenesis and manifestations. Rheum Dis Clin North Am 2006; 32:383-400, vii. [PMID: 16716885 DOI: 10.1016/j.rdc.2006.02.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Basic calcium phosphate (BCP) and calcium pyrophosphate dihydrate crystals are the most common types of pathologic calcium-containing crystals. Although these crystals long have been associated with a variety of rheumatic syndromes, recent evidence implicates BCP crystals in the pathogenesis of breast cancer and atherosclerosis. Although understanding of molecular mechanisms involved in generating these pathologic effects has been advanced significantly in recent years, they still are understood incompletely. Such advances are essential to the ongoing search for effective therapies for crystal-associated diseases.
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Affiliation(s)
- E S Molloy
- Department of Rheumatic and Immunologic Diseases, Cleveland Clinic Foundation, 9500 Euclid Avenue, A50 Cleveland, OH 44195, USA.
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32
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Abstract
PURPOSE OF REVIEW Basic calcium phosphate crystals have long been associated with rheumatic syndromes. Although an understanding of the molecular mechanisms involved in generating these pathological effects has been significantly advanced in recent years, it is still incomplete. RECENT FINDINGS Basic calcium phosphate crystals have been shown to increase prostaglandin E(2) production in human fibroblasts, mediated by the induction of both cyclooxygenases 1 and 2. Basic calcium phosphate crystals have also been found to upregulate IL-1beta in fibroblasts and chondrocytes. The upregulation of inducible nitric oxide synthase and stimulation of nitric oxide production in chondrocytes by octacalcium phosphate crystals has been demonstrated. The involvement of protein kinase C isoforms in basic calcium phosphate crystal-mediated matrix metalloproteinase 1 and 3 expression in human fibroblasts has been clarified. Two pathways are involved: protein kinase Calpha mediates the calcium-dependent pathway, whereas protein kinase Cmu activates the extracellular-regulated kinase pathway in a calcium-independent cascade. In addition, basic calcium phosphate crystals activate the transcription factor Egr-1, an effect that may contribute to the mitogenic effect of these crystals on fibroblasts. SUMMARY Recent findings have emphasized the potential for basic calcium phosphate crystals to stimulate the production of a variety of inflammatory mediators such as prostaglandin E(2), nitric oxide, IL-1beta and matrix metalloproteinases, and have helped to elucidate the mechanisms of these effects. Such advances are essential for the ongoing search for effective therapies for basic calcium phosphate crystal-associated diseases.
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Affiliation(s)
- Eamonn S Molloy
- Department of Rheumatic and Immunologic Diseases, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA.
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Ea HK, Uzan B, Rey C, Lioté F. Octacalcium phosphate crystals directly stimulate expression of inducible nitric oxide synthase through p38 and JNK mitogen-activated protein kinases in articular chondrocytes. Arthritis Res Ther 2005; 7:R915-26. [PMID: 16207333 PMCID: PMC1257419 DOI: 10.1186/ar1763] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2004] [Revised: 04/05/2005] [Accepted: 05/02/2005] [Indexed: 11/29/2022] Open
Abstract
Basic calcium phosphate (BCP) crystals, including hydroxyapatite, octacalcium phosphate (OCP) and carbonate-apatite, have been associated with severe osteoarthritis and several degenerative arthropathies. Most studies have considered the chondrocyte to be a bystander in the pathogenesis of calcium crystal deposition disease, assuming that synovial cell cytokines were the only triggers of chondrocyte activation. In the present study we identified direct activation of articular chondrocytes by OCP crystals, which are the BCP crystals with the greatest potential for inducing inflammation. OCP crystals induced nitric oxide (NO) production and inducible nitric oxide synthase (NOS) mRNA expression by isolated articular chondrocytes and cartilage fragments, in a dose-dependent manner and with variations over time. OCP crystals also induced IL-1β mRNA expression. Using pharmacological and cytokine inhibitors, we observed that OCP crystals induced NO production and inducible NOS mRNA activation were regulated at both the transcriptional and the translational levels; were independent from IL-1β gene activation; and involved p38 and c-Jun amino-terminal kinase (JNK) mitogen-activated protein kinase (MAPK) pathways, as further confirmed by OCP crystal-induced p38 and JNK MAPK phosphorylation. Taken together, our data suggest that the transcriptional inducible NOS response to OCP crystals involved both the p38 and the JNK MAPK pathways, probably under the control of activator protein-1. NO, a major mediator of cartilage degradation, can be directly produced by BCP crystals in chondrocytes. Together with synovial activation, this direct mechanism may be important in the pathogenesis of destructive arthropathies triggered by microcrystals.
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Affiliation(s)
- Hang-Korng Ea
- INSERM U606, Centre Viggo Petersen, Hôpital Lariboisière, Paris, France
| | - Benjamin Uzan
- INSERM U606, Centre Viggo Petersen, Hôpital Lariboisière, Paris, France
| | | | - Frédéric Lioté
- INSERM U606, Centre Viggo Petersen, Hôpital Lariboisière, Paris, France
- Université Paris 7, UFR Saint-Louis Lariboisière, Paris, France
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Abstract
PURPOSE OF REVIEW Calcium-containing crystals can cause the degeneration of articular tissues in two separate pathways. In the direct pathway, crystals directly induce synoviocytes to proliferate and produce metalloproteinases and prostaglandins. The other pathway, the paracrine pathway, involves the interaction between crystals and macrophages/monocytes, which leads to the synthesis and release of cytokines, which can reinforce the action of crystals on synoviocytes and/or induce chondrocytes to secrete enzymes and which eventually causes the degeneration of articular tissues. The purpose of this review is to highlight the recent findings of the biologic effect of these crystals. RECENT FINDINGS In the past few years, major advances in the understanding of the biologic effect of crystals and the signal transduction pathway of crystal-induced cell activation offer a unique opportunity to examine the role of crystal in osteoarthritis and cartilage degeneration. SUMMARY Evidence for a causal role of crystals in cartilage degeneration in osteoarthritis is primarily inferential and is based on correlative data. Clinical observations indicate that exaggerated and uniquely distributed cartilage degeneration is associated with these deposits. Measurements of putative markers of cartilage breakdown suggest that these crystals magnify the degenerative process. Studies have shown two potential mechanisms by which crystals cause degeneration. These involve the stimulation of mitogenesis in synovial fibroblasts and the secretion of metalloproteinases by cells that subject these crystals to phagocytosis. New information on how crystals form and how they exert their biologic effects will help in the design of an effective therapeutic approach.
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Affiliation(s)
- Herman S Cheung
- Miami Veterans Administration Medical Center and Department of Biomedical Engineering, University of Miami, Miami, Florida, USA.
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Reuben PM, Sun Y, Cheung HS. Basic Calcium Phosphate Crystals Activate p44/42 MAPK Signal Transduction Pathway via Protein Kinase Cμ in Human Fibroblasts. J Biol Chem 2004; 279:35719-25. [PMID: 15190081 DOI: 10.1074/jbc.m403406200] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Although basic calcium phosphate (BCP) crystals are common in osteoarthritis, the crystal-induced signal transduction pathways in human fibroblasts have not been fully comprehended. We have previously demonstrated that the induction of matrix metalloproteinases (MMP) 1 and 3 by BCP crystals follows both the calcium-dependent protein kinase C (PKC) pathway and the calcium-independent p44/42 mitogen-activated protein kinase (p44/42 MAPK) pathway. Although we showed that the calcium-dependent PKC pathway was characterized by calcium-dependent PKCalpha, here we show that the calcium-independent p44/42 MAPK pathway is mediated by calcium-independent PKCmicro. Inhibition of PKCmicro synthesis and activity by antisense oligodeoxynucleotides and H-89 (N-(2-[p-bromocinnamylamino]ethyl)-5-isoquinolinesulfonamide), respectively, results in the inhibition of p44/42 MAPK activation, thus demonstrating that p44/42 MAPK activity is dependent upon PKCmicro. Reverse transcription-polymerase chain reaction and Western blotting also show that inhibition of PKCmicro results in the inhibition of MMP-1 and MMP-3 mRNA and protein expression as a result of p44/42 MAPK inhibition. These results now lead us to the conclusion that BCP crystal activation of human fibroblasts follows two pathways: 1) the calcium-dependent PKC pathway characterized by PKCalpha and 2) the calcium-independent p44/42 MAPK pathway mediated by PKCmicro, which operate independently leading to an increase in mitogenesis and MMP synthesis and ultimately complementing each other for the efficient regulation of cellular responses to BCP crystal stimulation of human fibroblasts.
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Affiliation(s)
- Paul M Reuben
- Research Service & Geriatric Research, Education and Clinical Center, Veterans Administration Medical Center, Miami, Florida 33125, USA
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36
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Abstract
Basic calcium phosphate, calcium pyrophosphate dihydrate, and monosodium urate crystals are the most common types of crystals associated with human disease. Although there is a well-established association between these crystals and various forms of joint disease, recent evidence points to an association of basic calcium phosphate crystals with breast cancer and atherosclerosis. Crystal-induced tissue damage is affected by degradative proteases, cytokines, chemokines, and prostanoids produced by cells stimulated by crystals. In the case of basic calcium phosphate and calcium pyrophosphate dihydrate crystals, these responses are augmented by the cellular proliferation that results from their induction of mitogenesis. The understanding of the molecular mechanisms involved in generating these pathologic effects has been significantly advanced in recent years. Such advances are essential to the ongoing search for more effective therapies for crystal-associated diseases.
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Affiliation(s)
- Eamonn S Molloy
- Department of Clinical Pharmacology, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
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37
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O'Shea FD, McCarthy GM. Basic calcium phosphate deposition in the joint: a potential therapeutic target in osteoarthritis. Curr Opin Rheumatol 2004; 16:273-8. [PMID: 15103257 DOI: 10.1097/00002281-200405000-00018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Basic calcium phosphate crystals are responsible for a number of clinical syndromes. The study of basic calcium phosphate crystal deposition diseases has been hindered by a lack of readily available, accurate, diagnostic tests. Recent data have provided further understanding of the mechanisms by which basic calcium phosphate crystals induce inflammation and degeneration within the joint, as well as their potential role in other conditions such as cancer and atherosclerosis. RECENT FINDINGS New information on the effects of basic calcium phosphate crystals on matrix metalloproteinases and mitogenesis further supports a role for basic calcium phosphate crystals in the pathogenesis of osteoarthritis. Phosphocitrate remains the most promising of the potential therapeutic agents, which could antagonize the effects of basic calcium phosphate crystals, although other therapies have also been examined. SUMMARY Further work is needed to clarify the exact role basic calcium phosphate crystals play in the development of osteoarthritis.
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Affiliation(s)
- Finbar D O'Shea
- Department of Rheumatology, Mater Misericordiae Hospital, Dublin, Ireland
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38
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Montel V, Kleeman J, Agarwal D, Spinella D, Kawai K, Tarin D. Altered metastatic behavior of human breast cancer cells after experimental manipulation of matrix metalloproteinase 8 gene expression. Cancer Res 2004; 64:1687-94. [PMID: 14996728 DOI: 10.1158/0008-5472.can-03-2047] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Previous work in our laboratory led to the cloning, from the same parent tumor cell line (MDA-MB-435), of two human breast cancer cell lines (M-4A4 and NM-2C5) with opposite metastatic phenotypes. Additional investigations revealed that the nonmetastatic cell line NM-2C5 overexpressed the neutrophil collagenase, matrix metalloproteinase (MMP)-8, relative to its partner. Because other studies have implicated the MMP family in promoting tumor metastasis, we investigated the apparently paradoxical expression of MMP-8 in these cell lines. By genetic engineering, we inverted its relative levels of expression in the two partners and studied the effects on the behavior of the tumors that they generated in athymic mice. Knock-down of expression in NM-2C5 cells by transduction with a sequence encoding a specific ribozyme and overexpression of MMP-8 in M-4A4 cells by retroviral transduction both strikingly changed metastatic performance in opposite directions, indicating that this gene plays a role in the regulation of tumor metastasis.
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Affiliation(s)
- Valerie Montel
- Department of Pathology, University of California, San Diego Cancer Center, La Jolla, California 92093, USA
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Halverson PB. Crystal deposition disease of the shoulder (including calcific tendonitis and milwaukee shoulder syndrome). Curr Rheumatol Rep 2003; 5:244-7. [PMID: 12744818 DOI: 10.1007/s11926-003-0074-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Calcific tendinitis of the shoulder is a dynamic process. Osteopontin is present in cells surrounding tendon calcifications. Resorption is probably mediated by cathepsin K-containing multinucleated giant cells. Rotator cuff tears are associated with an inflammatory response based on the presence of interleukin-1 and a proliferative synovitis. Metalloproteinases are found in the synovial fluids of patients with rotator cuff tears. Some patients with large rotator cuff tears progress to a severe destructive arthropathy characterized by large joint effusions, which are noninflammatory but contain basic calcium phosphate crystals. These crystals stimulate metalloproteinase production in vitro and also suppress metalloproteinase inhibitor production. Mutations in the ank gene result in decreased extracellular inorganic pyrophosphate in murine progressive ankylosis, and increased extracellular inorganic pyrophosphate in some cases of familial chondrocalcinosis.
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Affiliation(s)
- Paul B Halverson
- Department of Medicine, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA.
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40
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Yayama T, Furusawa N, Baba H, Kokubo Y, Yoshizawa K, Fukuda M. Calcium Crystal Deposition in the Ligamentum Flavum of the Lumbar Spine: Role of Sex Hormones and Transforming Growth Factor-.BETA. Acta Histochem Cytochem 2003. [DOI: 10.1267/ahc.36.83] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Takafumi Yayama
- Department of Orthopaedic Surgery, School of Medicine, Fukui Medical University
| | - Nobuaki Furusawa
- Department of Orthopaedic Surgery, School of Medicine, Fukui Medical University
| | - Hisatoshi Baba
- Department of Orthopaedic Surgery, School of Medicine, Fukui Medical University
| | - Yasuo Kokubo
- Department of Orthopaedic Surgery, School of Medicine, Fukui Medical University
| | - Kyoko Yoshizawa
- Department of Orthopaedic Surgery, School of Medicine, Fukui Medical University
| | - Masaru Fukuda
- Department of Pathology, School of Medicine, Fukui Medical University
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Reuben PM, Brogley MA, Sun Y, Cheung HS. Molecular mechanism of the induction of metalloproteinases 1 and 3 in human fibroblasts by basic calcium phosphate crystals. Role of calcium-dependent protein kinase C alpha. J Biol Chem 2002; 277:15190-8. [PMID: 11836255 DOI: 10.1074/jbc.m200278200] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Synovial fluid basic calcium phosphate (BCP) crystals are common in osteoarthritis and are often associated with destructive arthropathies involving cartilage degeneration. These crystals are mitogenic and induce oncogene expression and matrix metalloproteinase (MMP) synthesis and secretion in human fibroblasts. To date, BCP crystal-elicited signal transduction pathways have not been completely studied. Because protein kinase C (PKC) is known to play an important role in signal transduction, we investigated the participation of this pathway in the BCP crystal induction of MMP-1 and MMP-3 mRNA and protein expressions in human fibroblasts. Using reverse transcription/polymerase chain reaction (RT-PCR) and Northern and Western blotting techniques, we show here that BCP crystal stimulation of MMP-1 and MMP-3 mRNA and protein expressions in human fibroblasts is dependent upon the calcium-dependent PKC signal transduction pathway and that the PKC alpha isozyme is specifically involved in the pathway. We have previously shown that BCP crystal induction of MMP-1 and MMP-3 is also dependent on the p44/42 mitogen-activated protein kinase (p44/42 MAPK) signal transduction pathway. We now show that these two pathways operate independently and seem to complement each other. This leads to our hypothesis that the two pathways initially function independently, ultimately leading to an increase in mitogenesis and MMP synthesis, and may converge downstream of PKC and p44/42 MAPK to mediate BCP crystal-induced cellular responses.
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Affiliation(s)
- Paul M Reuben
- Department of Medicine, University of Miami School of Medicine, Miami, Florida 33101, USA
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Sun Y, Wenger L, Brinckerhoff CE, Misra RR, Cheung HS. Basic calcium phosphate crystals induce matrix metalloproteinase-1 through the Ras/mitogen-activated protein kinase/c-Fos/AP-1/metalloproteinase 1 pathway. Involvement of transcription factor binding sites AP-1 and PEA-3. J Biol Chem 2002; 277:1544-52. [PMID: 11682465 DOI: 10.1074/jbc.m100567200] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Synovial fluid basic calcium phosphate (BCP) crystals are common in osteoarthritis and are associated with severe degenerative arthropathy. Besides stimulating synovial fibroblast-like cells to proliferate, BCP crystals are a potent inducer of human matrix metalloproteinases (hMMPs), which can speed up the articular joint tissue degeneration of osteoarthritis patients. Here, we report that transfections with hMMP1 luciferase reporter plasmids in fibroblast-like synoviocytes revealed that the induction of hMMP1 promoter by BCP crystals was mainly mediated through the -72AP-1 element. Elimination of the -72AP-1 element either by mutation or deletion abolished the induction of hMMP1 promoter activity by BCP crystals almost completely. Interestingly, a mutation at the -88PEA-3 site also abolished the induction of hMMP1 promoter. Further mutation at the -181AP-1 site resumed the induction, indicating that the -181AP-1 element had an effect opposite to the -72AP-1 element. The effect of -181AP-1 could be inactivated either by a mutation at this -181AP-1 site or by the -88PEA-3 element. In addition, dominant negative Ras, Raf, and MEK1/2 could block the induction of hMMP1, and a MEK1/2-specific inhibitor (UO126) could block the induction of hMMP1 and c-Fos by BCP crystals. Taken together, these data indicate that multiple elements, including at least AP-1 and PEA-3, are involved in the induction of hMMP1 gene expression by BCP crystals and that the induction follows the Ras/MAPK/c-Fos/AP-1/MMP1 signaling pathway.
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Affiliation(s)
- Yubo Sun
- Department of Medicine, University of Miami School of Medicine, Miami, Florida 33101, USA
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