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Li Y, Li H, Wang L, Xie W, Yuan D, Wen Z, Zhang T, Lai J, Xiong Z, Shan Y, Jiang W. The p65-LOC727924-miR-26a/KPNA3-p65 regulatory loop mediates vasoactive intestinal peptide effects on osteoarthritis chondrocytes. Int Immunopharmacol 2023; 122:110518. [PMID: 37392568 DOI: 10.1016/j.intimp.2023.110518] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/10/2023] [Accepted: 06/13/2023] [Indexed: 07/03/2023]
Abstract
Loss and dysfunction of articular chondrocytes, which disrupt the homeostasis of extracellular matrix formation and breakdown, promote the onset of osteoarthritis (OA). Targeting inflammatory pathways is an important therapeutic strategy for OA. Vasoactive intestinal peptide (VIP) is an immunosuppressive neuropeptide with potent anti-inflammatory effects; however, its role and mechanism in OA remain unclear. In this study, microarray expression profiling from the Gene Expression Omnibus database and integrative bioinformatics analyses were performed to identify differentially expressed lncRNAs in OA samples. qRT-PCR validation of the top ten different expressed lncRNAs indicated that the expression level of intergenic non-protein coding RNA 2203 (LINC02203, also named LOC727924) was the highest in OA cartilage compared to normal cartilage. Hence, the LOC727924 function was further investigated. LOC727924 was upregulated in OA chondrocytes, with a dominant sub-localization in the cytoplasm. In OA chondrocytes, LOC727924 knockdown boosted cell viability, suppressed cell apoptosis, reactive oxygen species (ROS) accumulation, increased aggrecan and collagen II, decreased matrix metallopeptidase (MMP)-3/13 and ADAM metallopeptidase with thrombospondin type 1 motif (ADAMTS)-4/5 levels, and reduced the levels of tumor necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β), and interleukin 6 (IL-6). LOC727924 could interact with the microRNA 26a (miR-26a)/ karyopherin subunit alpha 3 (KPNA3) axis by competitively targeting miR-26a for KPNA3 binding, therefore down-regulating miR-26a and upregulating KPNA3; in OA chondrocytes, miR-26a inhibition partially abolished LOC727924 knockdown effects on chondrocytes. miR-26a inhibited the nuclear translocation of p65 through targeting KPNA3 and p65 transcriptionally activated LOC727924, forming a p65-LOC727924-miR-26a/KPNA3-p65 regulatory loop to modulate OA chondrocyte phenotypes. In vitro, VIP improved OA chondrocyte proliferation and functions, down-regulated LOC727924, KPNA3, and p65 expression, and upregulated miR-26a expression; in vivo, VIP ameliorated destabilization of the medial meniscus (DMM)-induced damages on the mouse knee joint, down-regulated KPNA3, inhibited the nuclear translocation of p65. In conclusion, the p65-LOC727924-miR-26a/KPNA3-p65 regulatory loop modulates OA chondrocyte apoptosis, ROS accumulation, extracellular matrix (ECM) deposition, and inflammatory response in vitro and OA development in vivo, being one of the mechanisms mediating VIP ameliorating OA.
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Affiliation(s)
- Yusheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Hengzhen Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Lijie Wang
- Department of Bone and Joint, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China
| | - Wenqing Xie
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Dongliang Yuan
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China; Xiangya School of Medicine, Central South University, Changsha 410083, Hunan, China
| | - Zeqin Wen
- Xiangya School of Medicine, Central South University, Changsha 410083, Hunan, China
| | - Tiancheng Zhang
- Department of Bone and Joint, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China
| | - Jieyu Lai
- Xiangya School of Medicine, Central South University, Changsha 410083, Hunan, China
| | - Zixuan Xiong
- Xiangya School of Medicine, Central South University, Changsha 410083, Hunan, China
| | - Yunhan Shan
- Xiangya School of Medicine, Central South University, Changsha 410083, Hunan, China
| | - Wei Jiang
- Department of Bone and Joint, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China.
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Wang K, Chu M, Wang F, Zhao Y, Chen H, Dai X. Putative functional variants of PI3K/AKT/mTOR pathway are associated with knee osteoarthritis susceptibility. J Clin Lab Anal 2020; 34:e23240. [PMID: 32052902 PMCID: PMC7307371 DOI: 10.1002/jcla.23240] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 01/07/2020] [Accepted: 01/22/2020] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a degenerative musculoskeletal disease which causes joint deformity and pain and finally leads to limb dysfunction. Knee osteoarthritis (KOA) has the highest incidence among all kinds of OA. Strong evidence leads to the understanding that P13K/AKT/mTOR signaling is very important in cartilage degeneration. METHODS This research sought to understand the association between genetic variation of PI3K/AKT/mTOR genes and KOA susceptibility among Chinese population. All the genetic variants of PI3K/AKT/mTOR pathway were graded and selected using RegulomeDB database, and then, an association study including 278 osteoarthritis patients and 289 controls was conducted. RESULTS Finally, eight SNPs' genotypes' distributions and susceptibility to KOA were presented. AKT1 rs2498789 was associated with KOA susceptibility in dominate genetic model (AA + GA vs GG) after adjusted for BMI, age, and gender: OR = 1.46, 95% CI: 1.03-2.05, P = .03. PIK3CA rs7646409 was also associated with KOA susceptibility (TC vs TT) after adjusted for BMI, age, and gender: OR = 0.58, 95% CI: 0.36-0.93, P = .02. PIK3CA rs7646409 (TC vs TT) with KOA risk was more significant in age < 60 group (P for heterogeneity was .03). Risk score showed significant association with KOA susceptibility after cumulative analysis (OR = 2.45, 95% CI: 1.35-4.45, P = .003). CONCLUSIONS This study shows that genetic variation of PI3K/AKT/mTOR is associated with KOA susceptibility in Chinese Han population, indicating that PI3K/AKT/mTOR is very important in KOA pathogenesis.
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Affiliation(s)
- Kejie Wang
- Department of Orthopaedics, Changzhou First People's Hospital, Changzhou, Jiangsu, China.,Department of Orthopaedics, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Minjie Chu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Feng Wang
- Department of Orthopaedics, Changzhou First People's Hospital, Changzhou, Jiangsu, China.,Department of Orthopaedics, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Yiwen Zhao
- Department of Orthopaedics, Changzhou First People's Hospital, Changzhou, Jiangsu, China.,Department of Orthopaedics, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Haifeng Chen
- Department of Orthopaedics, Changzhou First People's Hospital, Changzhou, Jiangsu, China.,Department of Orthopaedics, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Xiaoyu Dai
- Department of Orthopaedics, Changzhou First People's Hospital, Changzhou, Jiangsu, China.,Department of Orthopaedics, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
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Vanichtantikul V, Hongvilai S, Numkarunarunrote N. Tibial cartilage volume measurement in knee osteoarthritis using magnetic resonance imaging. ASIAN BIOMED 2017. [DOI: 10.5372/1905-7415.0901.366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abstract
Background
Cartilage degeneration is considered as the initial defect in osteoarthritis. Measurement of cartilage volume is important to monitor disease progression and therapeutic response.
Objectives
To measure tibial cartilage volume using magnetic resonance imaging (MRI), and to evaluate the accuracy and interobserver reliability of tibial cartilage volume measurement using MRI.
Methods
The outline boundaries of the medial and lateral tibial cartilage were drawn manually on 1 mm slices using a track-ball to calculate the volume of each slice. Total calculated MRI-derived tibial cartilage volume was determined by summation of the slice volumes. The calculated tibial cartilage volume was compared to the actual tibial cartilage volume.
Results
There was a strong correlation between the calculated and actual tibial cartilage volumes determined by a radiologist and a researcher (98% and 89% agreement in medial tibial cartilage, 99% and 97% agreement in lateral tibial cartilage, respectively). High observer reliability was identified (92% agreement in medial tibial cartilage and 97% agreement in lateral tibial cartilage).
Conclusion
Tibial cartilage volume measurement using MRI can be easily performed by well-trained personnel such as radiologists or residents, and can be used to estimate tibial cartilage volume preoperatively in total knee arthroplasty, and to monitor disease progression and response to therapy.
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Affiliation(s)
- Varalee Vanichtantikul
- Division of Diagnostic Radiology , Department of Radiology, Faculty of Medicine , Chulalongkorn University , King Chulalongkorn Memorial Hospital , Bangkok 10330 , Thailand
| | - Sarit Hongvilai
- Division of Diagnostic Radiology , Department of Radiology, Faculty of Medicine , Chulalongkorn University , King Chulalongkorn Memorial Hospital , Bangkok 10330 , Thailand
| | - Numphung Numkarunarunrote
- Division of Diagnostic Radiology , Department of Radiology, Faculty of Medicine , Chulalongkorn University , King Chulalongkorn Memorial Hospital , Bangkok 10330 , Thailand
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Abstract
The intervertebral disc is usually divided into two parts, the anulus fibrosus and the nucleus pulposus. However, they are not considered two separate anatomic parts since one is essentially part of the other and this should be borne in mind to understand the process of ageing. The intervertebral disc should therefore be thought of as a dynamically evolving anatomo-functional unit. The dynamics of this process were investigated by studying the histobiochemistry of the acellular matrix of the joint cartilage in general and that of the intervertebral disc in particular to understand the effects of this arrangement on the stuctural changes to the disc induced by biomechanical stress, especially during ageing. Lastly, we focussed on the disc's nutritional mechanisms in order to examine “disc degeneration” as a sign of metabolic impairment of the nucleus pulposus and “disc regeneration”. This concept was unknown until recently and is currently monitored in percutaneous controls following treatment for disc disease.
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Affiliation(s)
- L. Simonetti
- Servizio Di Neuroradiologia, Ospedale Bellaria, Bologna, Italy
| | - C. Barbara
- Servizio Di Neuroradiologia, Ospedale Bellaria, Bologna, Italy
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Salaffi F, Carotti M, Cervini C. Modificazioni morfo-funzionali della cartilagine nella senescenza e nell'osteoartrosi. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/19714009940070s305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
La cartilagine articolare è un tessuto connettivo avascolare, aneurale che ricopre le superfici articolari. La funzione di assorbimento delle sollecitazioni meccaniche, a protezione dell'osso subcondrale, rende la supeficie articolare idonea a sostenere il carico. Le funzioni inerenti le modalità di assorbimento della sollecitazione meccanica, che fanno sì che la deformazione sia reversibile, dipendono in larga parte dalle caratteristiche della cartilagine, intesa come struttura altamente organizzata. Nell'osteoartrosi umana e nei suoi modelli animali l'alterazione strutturale dei proteoglicani cartilaginei rappresenta l'evento centrale. Vengono discusse, alla luce delle acquisizioni più recenti, le implicazioni sulle proprieta fisico-chimiche e morfo-strutturali della cartilagine articolare riguardanti le caratteristiche di base dei proteoglicani, la struttura dei collageni, l'organizzazione della matrice extracellulare e le sue modificazioni nella senescenza ed in corso di osteoartrosi con le relative conseguenze sulle proprietà biomeccaniche del disco intervertebrale. Le conoscenze relative alle alterazioni della struttura proteoglicanica e lo sviluppo di nuovi metodi di determinazione dei markers biochimici del danno cartilagineo potrebbero migliorare la comprensione delle relazioni fra senescenza ed osteoartrosi, nonchè il riconoscimento delle modificazioni più precoci e la valutazione della risposta terapeutica.
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Affiliation(s)
- F. Salaffi
- Istituto Policattedra di Patologia e Clinica dell'Apparato Locomotore, Università degli Studi di Ancona
| | - M. Carotti
- Istituto Policattedra di Patologia e Clinica dell'Apparato Locomotore, Università degli Studi di Ancona
| | - C. Cervini
- Istituto Policattedra di Patologia e Clinica dell'Apparato Locomotore, Università degli Studi di Ancona
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Abstract
Osteoarthritis is a common and sometimes disabling disease. New directions in therapy include inhibitors of selective proteins and transplantation of cultured chondrocytes. At the present time, treatment continues to be in response to a patient's symptoms. Thus, the challenge to physicians is to devise individual treatment plans that safely maximize relief and preservation of joint function.
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Affiliation(s)
- Kerstin Morehead
- Department of Medicine, University of California, San Francisco, School of Medicine, 400 Parnassus Ave, Plaza Level, Box 0326, San Francisco, CA 94143, USA
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Cartilage collagen damage in hip osteoarthritis similar to that seen in knee osteoarthritis; a case-control study of relationship between collagen, glycosaminoglycan and cartilage swelling. BMC Musculoskelet Disord 2013; 14:18. [PMID: 23302451 PMCID: PMC3546305 DOI: 10.1186/1471-2474-14-18] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 01/05/2013] [Indexed: 11/10/2022] Open
Abstract
Background It remains to be shown whether OA shares molecular similarities between different joints in humans. This study provides evidence for similarities in cartilage molecular damage in osteoarthritic (OA) joints. Methods Articular cartilage from osteoarthritic hip joints were analysed and compared to non-OA controls regarding collagen, glycosaminoglycan and water content. Femoral heads from 16 osteoarthritic (OA) and 20 reference patients were obtained from hip replacement surgery due to OA and femoral neck fracture, respectively. Cartilage histological changes were assessed by Mankin grading and denatured collagen type II immunostaining and cartilage was extracted by α-chymotrypsin. Hydroxyproline and Alcian blue binding assays were used to measure collagen and glycosaminoglycan (GAG) content, respectively. Results Mankin and immunohistology scores were significantly higher in hip OA samples than in reference samples. Cartilage water content was 6% higher in OA samples than in references. 2.5 times more collagen was extracted from OA than from reference samples. There was a positive association between water content and percentage of extractable collagen pool (ECP) in both groups. The amounts of collagen per wet and dry weights did not differ statistically between OA and reference cartilage. % Extractable collagen was not related to collagen per dry weight in either group. However when collagen was expressed by wet weight there was a negative correlation between % extractable and collagen in OA cartilage. The amount of GAG per wet weight was similar in both groups but the amount of GAG per dry weight was higher in OA samples compared to reference samples, which suggests a capacity for GAG biosynthesis in hip OA cartilage. Neither of the studied parameters was related to age in either group. Conclusions Increased collagen extractability and water content in human hip cartilage is associated with OA pathology and can be observed at early stages of the degenerative hip OA process. Our results suggest a common degradative pathway of collagen in articular cartilage of different joints. Furthermore, the study suggests that biochemical changes precede more overt OA changes and that chondrocytes may have a capability to compensate molecular loss in the early phase of OA.
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Relationships between Pain, Function and Radiographic Findings in Osteoarthritis of the Knee: A Cross-Sectional Study. ARTHRITIS 2012; 2012:984060. [PMID: 23209900 PMCID: PMC3506881 DOI: 10.1155/2012/984060] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 10/24/2012] [Indexed: 11/18/2022]
Abstract
Objectives. The aim of this study was to investigate the relationships between pain, disability, and radiographic findings in patients with knee osteoarthritis (OA). Patients and Methods. A total of 114 patients with knee OA who attended the physical medicine and rehabilitation outpatient clinic were included in this study. The diagnosis was based on the American College of Rheumatology (ACR) criteria for knee OA. Age, duration of disease, and body mass index (BMI) of the patients were recorded. Radiographic features on the two-sided knee radiography were assessed with the Kellgren-Lawrence scale. The severity of knee pain, stiffness, and disability were measured using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Results. The mean age of the patients was 56.98 (±8.28) years and the mean disease duration was 4.14 (±4.15) years. Kellgren-Lawrence grading scale and age or disease duration were positively and significantly associated, whereas none of the WOMAC subscores were found to be related with Kellgren-Lawrence grading scale (P > 0.05). On the other hand, WOMAC disability scores were significantly associated with WOMAC pain and WOMAC stiffness (P < 0.01). Conclusions. Knee pain, stiffness, and duration of disease may affect the level of disability in the patients with knee OA. Therefore treatment of knee OA could be planned according to the clinical features and functional status instead of radiological findings.
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Abstract
This short report presents a view of osteoarthritis (OA) as cumulative microtrauma mediated by physical activity. The view, grounded in principles of hand pathomechanics, places physical activity at the centre of the process through which problems in the joint (originating from many possible sources) result in a cascade of symptoms and hand impairments. The view points towards opportunities to expand treatment options and improve treatment outcomes for patients with hand OA.
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Affiliation(s)
- Judith Falconer
- Department of Medicine, Division of Rheumatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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10
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Sell DR, Monnier VM. Aging of Long‐Lived Proteins: Extracellular Matrix (Collagens, Elastins, Proteoglycans) and Lens Crystallins. Compr Physiol 2011. [DOI: 10.1002/cphy.cp110110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Becerra J, Andrades JA, Guerado E, Zamora-Navas P, López-Puertas JM, Reddi AH. Articular cartilage: structure and regeneration. TISSUE ENGINEERING PART B-REVIEWS 2010; 16:617-27. [PMID: 20836752 DOI: 10.1089/ten.teb.2010.0191] [Citation(s) in RCA: 152] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Articular cartilage (AC) has no or very low ability of self-repair, and untreated lesions may lead to the development of osteoarthritis. One method that has been proven to result in long-term repair or isolated lesions is autologous chondrocyte transplantation. However, first generation of these cells' implantation has limitations, and introducing new effective cell sources can improve cartilage repair. AC provides a resilient and compliant articulating surface to the bones in diarthrodial joints. It protects the joint by distributing loads applied to it, so preventing potentially damaging stress concentrations on the bone. At the same time it provides a low-friction-bearing surface to enable free movement of the joint. AC may be considered as a visco- or poro-elastic fiber-composite material. Fibrils of predominantly type II collagen provide tensile reinforcing to a highly hydrated proteoglycan gel. The tissue typically comprises 70% water and it is the structuring and retention of this water by the proteoglycans and collagen that is largely responsible for the remarkable ability of the tissue to support compressive loads.
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Affiliation(s)
- José Becerra
- Laboratory of Bioengineering and Tissue Regeneration (LABRET-UMA), Department of Cell Biology, Genetics and Physiology, Faculty of Sciences, University of Málaga, Málaga, Spain
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12
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Pacifici M, Koyama E, Iwamoto M, Gentili C. Development of articular cartilage: what do we know about it and how may it occur? Connect Tissue Res 2001; 41:175-84. [PMID: 11264867 DOI: 10.3109/03008200009005288] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Articular cartilage has a fundamental role in joint function. While much is known about its structure, organization and biomechanical properties, there is a very poor understanding of how articular chondrocytes develop during embryogenesis and acquire the unique ability to organize and maintain the articular tissue. Given that articular cartilage forms in close juxtaposition with the joint, here we review past studies on limb joint determination and morphogenesis and more recent studies on a number of factors thought to have roles in joint and epiphysis development. These factors include: the homeobox gene Barx-1; the bone morphogenetic protein (BMP) family member GDF-5; the growth factors HGF and PTHrP; and the transcription factor ERG. We summarize current thinking on how these factors participate in joint development and how some of these factors may influence development and behavior of epiphyseal chondrocytes. We also describe pertinent recent studies from our laboratories on ERG and the newly-identified alternatively spliced variant C-1-1, and finally propose a sequela of events that may subtend the process of determination and emergence of articular chondrocytes during limb synovial joint development.
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Affiliation(s)
- M Pacifici
- Department of Anatomy and Histology, School of Dental Medicine, University of Pennsylvania, 4001 Spruce Street, Philadelphia, PA 19104, USA.
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Abstract
OBJECTIVE This review highlights the clinical and pathophysiologic features of osteoarthritis (OA) of the peripheral joints and discusses the current and future management options for this common but potentially disabling disease. This article also addresses the contribution of osteoarthritis to falls and functional impairment in older people. DESIGN A critical assessment of current data regarding the pathogenesis of osteoarthritis, current and future therapies, and the potential role of OA in falls and functional impairment in older people. CONCLUSIONS Osteoarthritis is the most prevalent articular disease in older adults. Disease markers that will detect early disease and allow early intervention with pharmacologic agents that modify, if not halt, disease progression are much needed, but they are presently unavailable. Current management should include safe and adequate pain relief using systemic and local therapies and should also include medical and rehabilitative interventions to prevent, or at least compensate for, functional deficits. Although OA can result in impaired mobility and lower extremity function, its contribution as a cause of recurrent falls or impaired self-care, relative to other comorbid conditions, remains ill-defined. Further analysis of the determinants of disability, loss of mobility and falls in older patients with OA is needed.
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Affiliation(s)
- S M Ling
- Division of Geriatric Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Soriano F, Ríos R. GALLIUM ARSENIDE LASER TREATMENT OF CHRONIC LOW BACK PAIN: A PROSPECTIVE, RANDOMIZED AND DOUBLE BLIND STUDY. Laser Ther 1998. [DOI: 10.5978/islsm.10.175] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Lethbridge-Cejku M, Tobin JD, Scott WW, Reichle R, Plato CC, Hochberg MC. The relationship of age and gender to prevalence and pattern of radiographic changes of osteoarthritis of the knee: data from Caucasian participants in the Baltimore Longitudinal Study of Aging. AGING (MILAN, ITALY) 1994; 6:353-7. [PMID: 7893781 DOI: 10.1007/bf03324264] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The aim of this study was to estimate the prevalence and pattern of radiographic changes of osteoarthritis (OA) of the knee by age and gender in Caucasian participants in the Baltimore Longitudinal Study of Aging. Bilateral standing weight-bearing radiographs of the knee in 547 male and 351 female subjects (aged 20 and above) were read for changes of knee OA using Kellgren-Lawrence and individual features scales. Prevalence of definite (Kellgren-Lawrence grade > or = 2 changes) knee OA increased with advancing age in both sexes. Approximately 50 percent in both sexes showed bilateral involvement. Men aged 59 and below were more likely to have unilateral impairment than men aged 60 and above; no such differences were found in females. These data demonstrate that age and gender influence both the prevalence and pattern of radiographic changes of knee OA.
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Affiliation(s)
- M Lethbridge-Cejku
- Department of Medicine, University of Maryland School of Medicine, Baltimore
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16
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Affiliation(s)
- K Sames
- Department of Anatomy, University of Hamburg, Germany
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17
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Tsai CL, Liu TK, Chen TJ. Estrogen and osteoarthritis: a study of synovial estradiol and estradiol receptor binding in human osteoarthritic knees. Biochem Biophys Res Commun 1992; 183:1287-91. [PMID: 1567405 DOI: 10.1016/s0006-291x(05)80330-4] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Estrogen appears to be a risk factor in knee osteoarthritis (OA). Results from 21 patients revealed that synovial estradiol level was highly related to the severity of OA. Increased estradiol receptor bindings in the medial compartment of the femoral condylar and tibia plateau cartilages were observed; the increase was significantly higher in the medial than in the lateral compartment (p less than 0.05). Although the synovial estradiol level was significantly lower in women with OA than in men with OA (p less than 0.01), postmenopausal women were hypothesized to be more susceptible to OA, since the possible existence of synovial testosterone might counteract the high estradiol synovial level in men, which results in a lower incidence of knee OA in men than in postmenopausal women. We suggest that excessive synovial estradiol and higher estradiol receptor bindings may be involved in the development of knee OA, particularly in postmenopausal women.
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Affiliation(s)
- C L Tsai
- Department of Orthopaedic Surgery, School of Medicine, National Taiwan University, Taipei, ROC
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18
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Bagge E, Bjelle A, Edén S, Svanborg A. Osteoarthritis in the elderly: clinical and radiological findings in 79 and 85 year olds. Ann Rheum Dis 1991; 50:535-9. [PMID: 1888194 PMCID: PMC1004482 DOI: 10.1136/ard.50.8.535] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The prevalence of joint complaints and clinical and radiological findings of osteoarthritis in wrist, hand, and knee joints was studied in representative population subsamples of 79 and 85 year olds. Joint complaints, clinical findings of osteoarthritis, and radiographic osteoarthritis were more common in women. Age related differences in the prevalence of osteoarthritis were not found. Although there was a correlation between clinical signs of osteoarthritis and radiographic osteoarthritis, clinical signs were often present without radiographic evidence and moderate and severe radiographic osteoarthritis was often present without clinical signs.
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Affiliation(s)
- E Bagge
- Department of Rheumatology, University of Göteborg, Sweden
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Kallman DA, Wigley FM, Scott WW, Hochberg MC, Tobin JD. The longitudinal course of hand osteoarthritis in a male population. ARTHRITIS AND RHEUMATISM 1990; 33:1323-32. [PMID: 2403398 DOI: 10.1002/art.1780330904] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this prospective analysis of the natural history of osteoarthritis (OA) of the hand, the incidence and progression of various radiographic features of OA were examined in 177 men who participated in the Baltimore Longitudinal Study of Aging. Subjects who were less than 60 years old were selected based on the availability of at least 4 hand radiographs taken during at least 20 years of followup, while subjects who were age 60 or older were required to have had at least 4 hand radiographs taken during only 14 years of followup. Individual joints of the hands were graded for the presence and severity of 5 features of OA: osteophytes, joint space narrowing, subchondral sclerosis, lateral deformity, and cortical collapse. They were also graded according to the global Kellgren/Lawrence scale. The incidence and rate of progression of OA, as measured by all scales, increased in progressively older age groups. Cox's proportional hazards models showed that isolated doubtful osteophytes (Kellgren/Lawrence grade 1) and isolated joint space narrowing predicted the development of the radiographic features of OA. The rate of OA progression slowed as the severity increased. We conclude that, in men, the incidence of radiographic features of hand OA increases with age. Regardless of age, the earliest radiographic signs of OA are joint space narrowing and doubtful osteophytes.
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Affiliation(s)
- D A Kallman
- Applied Physiology Section, National Institute on Aging, Baltimore, MD 21224
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Abstract
Rheumatic diseases in the elderly are common and may be more difficult to diagnose than in younger patients. Treatment must be tailored to the patients' needs and functional reserve. Elderly patients need to be monitored even more closely for toxicity than younger adults.
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Affiliation(s)
- L C Corman
- Division of General Medicine, University of Florida College of Medicine, Gainesville
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Fife RS. Identification of cartilage matrix glycoprotein in synovial fluid in human osteoarthritis. ARTHRITIS AND RHEUMATISM 1988; 31:553-6. [PMID: 3358813 DOI: 10.1002/art.1780310414] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cartilage matrix glycoprotein (CMGP) is a high molecular weight protein found in hyaline cartilage and fibrocartilage. It consists of disulfide-bonded subunits, each with an apparent molecular weight of 116,000. Fragmentation of CMGP is noted in extracts of osteoarthritic canine cartilage. CMGP has been identified in the serum and synovial fluid of dogs with experimentally induced osteoarthritis. It has now been identified in synovial fluid from osteoarthritic human joints but not in synovial fluid from joints of patients with other arthritides or joint abnormalities. The possible significance of CMGP in synovial fluid in human osteoarthritis is discussed.
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Affiliation(s)
- R S Fife
- Department of Medicine, Indiana University School of Medicine, Indianapolis 46223
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Felson DT, Naimark A, Anderson J, Kazis L, Castelli W, Meenan RF. The prevalence of knee osteoarthritis in the elderly. The Framingham Osteoarthritis Study. ARTHRITIS AND RHEUMATISM 1987; 30:914-8. [PMID: 3632732 DOI: 10.1002/art.1780300811] [Citation(s) in RCA: 999] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
To investigate the prevalence of osteoarthritis (OA) of the knee in elderly subjects, we studied the Framingham Heart Study cohort, a population-based group. During the eighteenth biennial examination, we evaluated the cohort members for OA of the knee by use of medical history, physical examination, and anteroposterior (standing) radiograph of the knees. Radiographs were obtained on 1,424 of the 1,805 subjects (79%). Their ages ranged from 63-94 years (mean 73). Radiographs were read by a radiologist who specializes in bone and joint radiology, and were graded 0-4 according to the scale described by Kellgren and Lawrence. OA was defined as grade 2 changes (definite osteophytes), or higher, in either knee. Radiographic evidence of OA increased with age, from 27% in subjects younger than age 70, to 44% in subjects age 80 or older. There was a slightly higher prevalence of radiographic changes of OA in women than in men (34% versus 31%); however, there was a significantly higher proportion of women with symptomatic disease (11% of all women versus 7% of all men; P = 0.003). The age-associated increase in OA was almost entirely the result of the marked age-associated increase in the incidence of OA in the women studied. This study extends current knowledge about OA of the knee to include elderly subjects, and shows that the prevalence of knee OA increases with age throughout the elderly years.
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