Abstract:
BACKGROUND:Intra-articular injection of hyaluronan (HA) has been suggested to have a disease-modifying effect in osteoarthritis, but little is known about the possible mechanisms. OBJECTIVE:To investigate the effects of HA species of different molecular mass, including 800 kDa (HA800) and 2700 kDa (HA2700), on the expression of aggrecanases (ie, ADAMTS species), which play a key role in aggrecan degradation. METHODS:The effects of HA species on the expression of ADAMTS1, 4, 5, 8, 9 and 15 in interleukin 1alpha (IL1alpha)-stimulated osteoarthritic chondrocytes were studied by reverse transcription PCR and real-time PCR. Expression of ADAMTS4 protein and aggrecanase activity and signal transduction pathways of IL1, CD44 and intracellular adhesion molecule 1 (ICAM1) were examined by immunoblotting. RESULTS:IL1alpha treatment of chondrocytes induced ADAMTS4, and HA800 and HA2700 significantly decreased IL1alpha-induced expression of ADAMTS4 mRNA and protein. IL1alpha-stimulated aggrecanase activity in osteoarthritic chondrocytes was reduced by treatment with HA2700 or transfection of small interfering RNA for ADAMTS4. A similar result was obtained when HA2700 was added to explant cultures of osteoarthritic cartilage. HA2700 neither directly inhibited nor bound to ADAMTS4. Downregulation of ADAMTS4 expression by HA2700 was attenuated by treatment of IL1alpha-treated chondrocytes with antibodies to CD44 and/or ICAM1. The increased phosphorylation of IL1 receptor-associated kinase-1 and extracellular signal-regulated protein kinase1/2 induced by the IL1alpha treatment was downregulated by enhanced IRAK-M expression after HA2700 treatment. CONCLUSION:These data suggest that HA2700 suppresses aggrecan degradation by downregulating IL1alpha-induced ADAMTS4 expression through the CD44 and ICAM1 signalling pathways in osteoarthritic chondrocytes.
journal_name
Ann Rheum Disjournal_title
Annals of the rheumatic diseasesauthors
Yatabe T,Mochizuki S,Takizawa M,Chijiiwa M,Okada A,Kimura T,Fujita Y,Matsumoto H,Toyama Y,Okada Ydoi
10.1136/ard.2007.086884subject
Has Abstractpub_date
2009-06-01 00:00:00pages
1051-8issue
6eissn
0003-4967issn
1468-2060pii
ard.2007.086884journal_volume
68pub_type
杂志文章abstract::Autonomic function assessed by tests of cardiovascular reflexes was studied in 25 patients with systemic sclerosis and 10 patients with primary Raynaud's phenomenon. A comparison was made with 13 normal healthy subjects. Significant abnormalities in the cardiovascular reflexes were found in systemic sclerosis, both in...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.47.7.542
更新日期:1988-07-01 00:00:00
abstract:OBJECTIVE:To assess the effects of tumour necrosis factor (TNF) antagonist therapy on B lymphocyte stimulator (BLyS) expression in patients with rheumatoid arthritis (RA). METHODS:Blood from 38 patients with RA from a single centre was collected prior to and following initiation of TNF antagonist therapy. Plasma BLyS ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2007.079954
更新日期:2008-08-01 00:00:00
abstract::In view of the association of congenital heart block with maternal antibody to cellular antigen Ro (SSA), and one report linking anti-Ro with myocarditis in a patient with myositis an association between anti-Ro antibodies and cardiac disease was sought in adults with systemic lupus erythematosus (SLE). Among 67 patie...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.49.8.627
更新日期:1990-08-01 00:00:00
abstract::Two animal models were used to investigate the mode of action of levamisole and thymopoietin. Neither compound influenced the subcutaneous carrageenan air pouch. While thymopoietin inhibited the formation of cotton pellet granulomas, levamisole enhanced it. This supports the conclusions of clinical studies reported el...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.42.1.94
更新日期:1983-02-01 00:00:00
abstract:OBJECTIVES:People with spondyloarthritis (SpA), ankylosing spondylitis (AS) and psoriatic arthritis (PsA) have identified the importance of understanding how their disease and its treatment impacts on their social roles. This requires a reliable and valid standardised measure, and this study evaluates these measurement...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2010.149211
更新日期:2011-10-01 00:00:00
abstract:BACKGROUND:Certain sequences present in the hypervariable region of human leucocyte antigen (HLA)-DRB1 known as the shared epitope (SE) are hypothesised to increase the risk of rheumatoid arthritis (RA), whereas alleles encoding aspartic acid at position 70 (D70 alleles) may have a protective effect. METHODS:Patient H...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2006.067603
更新日期:2007-11-01 00:00:00
abstract::The circulating levels of hyaluronate were determined in 36 patients with scleroderma and in 36 control subjects matched for age and sex. The mean serum hyaluronate concentration in patients with progressive systemic sclerosis (n = 25) was 131 +/- 67 (SD) microgram/l and significantly greater (p less than 0.001) than ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.44.9.614
更新日期:1985-09-01 00:00:00
abstract:OBJECTIVES:Eosinophils possess pro-inflammatory functions in asthma. However, our recent studies have suggested that innate lymphoid cells type 2 (ILC2s) and eosinophils have proresolving properties in rheumatoid arthritis (RA). Nothing is known yet about the mechanisms determining the double-edged role of eosinophils....
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2020-218902
更新日期:2020-11-04 00:00:00
abstract::Platelet serotonin concentrations were measured in 43 patients with systemic sclerosis, in 11 patients with primary Raynaud's phenomenon, and in 38 normal controls. Patients with the CREST variant (calcinosis, Raynaud's phenomenon, oesophageal dysmotility, sclerodactyly, telangiectasia) had significantly lower platele...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.48.7.586
更新日期:1989-07-01 00:00:00
abstract:OBJECTIVE:To assess the value of advanced imaging techniques in the detection of hand osteoarthritis (OA) and hand OA progression. METHODS:PubMed/Medline and Embase were searched until April 2012 for studies on imaging of hand OA that presented quantitative data on validity, reliability or responsiveness. Articles pre...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,评审
doi:10.1136/annrheumdis-2012-202515
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that pustulosis palmaris et plantaris and psoriatic arthritis (PsA) are two distinct diseases, and that the associated dermatoses are therefore also distinct diseases. METHODS:We prospectively performed clinical, radiological, biological, and bone scan investigations in 23 outpatients ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.55.3.177
更新日期:1996-03-01 00:00:00
abstract:OBJECTIVE:To elucidate factors involved in the arthritogenicity of bacterial cell walls. METHODS:For characterisation of an arthritogenic Eubacterium aerofaciens cell wall, peptidoglycan-polysaccharide (PG-PS) polymers were isolated by removing cell wall associated proteins (CWPs), PG and PS moieties were separated, a...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.60.3.269
更新日期:2001-03-01 00:00:00
abstract::Serum immunoglobulins were measured in 122 patients with ankylosing spondylitis (AS) during various phases of disease activity and compared to those in 58 healthy subjects. The mean serum IgA was 38% higher in patients (306.9 mg/dl) than in controls (222.7 mg/dl) (P < 0.005), but there was no significant difference in...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.39.6.545
更新日期:1980-12-01 00:00:00
abstract::Familial Mediterranean fever (FMF) is the most common monogenic autoinflammatory disease, but many rheumatologists are not well acquainted with its management. The objective of this report is to produce evidence-based recommendations to guide rheumatologists and other health professionals in the treatment and follow-u...
journal_title:Annals of the rheumatic diseases
pub_type: 共识发展会议,杂志文章,实务指引
doi:10.1136/annrheumdis-2015-208690
更新日期:2016-04-01 00:00:00
abstract:INTRODUCTION:The molecular mechanisms of syndesmophyte formation in ankylosing spondylitis (AS) are yet to be characterised. Molecules involved in bone formation such as Wnt proteins and their antagonists probably drive syndesmophyte formation in AS. METHODS:This study investigated sequential serum levels of functiona...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2011-200216
更新日期:2012-04-01 00:00:00
abstract::Serum IgG antibodies to native and denatured human type II collagen (Col II) were measured using an enzyme linked immunosorbent assay (ELISA). One hundred and thirty one patients with various forms of arthritis such as rheumatoid arthritis (RA), ankylosing spondylitis (AS), psoriatic arthritis (PSA). Reiter's Syndrome...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.47.4.313
更新日期:1988-04-01 00:00:00
abstract:OBJECTIVE:To measure gelatinase activities in paired synovial fluid (SF) and serum of patients with juvenile idiopathic arthritis (JIA), and to assess how these activities relate to clinical and laboratory measures of disease activity. METHODS:A quantitative protein substrate zymography method was adapted and validate...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2005.039032
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:Rice bodies can occur in the joints in many rheumatic conditions, but they are most common in rheumatoid arthritis. They are generally believed to occur rarely in patients with osteoarthritis, but one study reported rice bodies with apatite crystals. OBJECTIVE:To report on a series of joint fluids with rice...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.61.5.387
更新日期:2002-05-01 00:00:00
abstract:OBJECTIVE:To determine the circulating serum concentrations of nerve growth factor (NGF) and compare them with indices of disease activity in juvenile chronic arthritis. METHODS:NGF concentrations were evaluated with a two site immunoenzymatic assay (ELISA), in 17 children with systemic, 39 with polyarticular, and 24 ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.55.10.745
更新日期:1996-10-01 00:00:00
abstract:OBJECTIVE:To develop and validate new classification criteria for adult and juvenile idiopathic inflammatory myopathies (IIM) and their major subgroups. METHODS:Candidate variables were assembled from published criteria and expert opinion using consensus methodology. Data were collected from 47 rheumatology, dermatolo...
journal_title:Annals of the rheumatic diseases
pub_type: 共识发展会议,杂志文章,实务指引
doi:10.1136/annrheumdis-2017-211468
更新日期:2017-12-01 00:00:00
abstract:OBJECTIVES:To study the gene-environment interaction of tobacco exposure and shared epitope on autoantibodies in patients with rheumatoid arthritis and undifferentiated arthritis. METHODS:From incident cases of arthritis (n = 1305), patients who did not fulfil any classification criteria (undifferentiated arthritis (n...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2005.041079
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVE:Notch signalling pathways are critical for angiogenesis and endothelial cell (EC) fate; however the mechanisms regulating these processes in the inflamed joint remain to be elucidated. Here, we examine whether Notch signalling mediates vascular endothelial growth factor (VEGF) and angiopoietin 2 (Ang2)-induce...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2012-201978
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVE:To evaluate the gastrointestinal safety and efficacy of the COX inhibiting nitric oxide donator AZD3582 in patients with hip or knee osteoarthritis. METHODS:970 patients were randomised (7:7:2) to AZD3582 750 mg twice daily, naproxen 500 mg twice daily, or placebo twice daily in a double blind study. The pri...
journal_title:Annals of the rheumatic diseases
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1136/ard.2004.023572
更新日期:2005-03-01 00:00:00
abstract:OBJECTIVES:To test the hypothesis that PVAC, delipidated, deglycolipidated heat killed Mycobacterium vaccae, is an effective and safe treatment for psoriatic arthritis (PsA). This treatment has shown promising results in psoriasis. METHODS:36 patients with PsA in two centres were studied in this double blind, placebo ...
journal_title:Annals of the rheumatic diseases
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1136/ard.2003.007104
更新日期:2004-06-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:There is an urgent need for robust data on the trajectories and outcomes of pregnancies in women with inflammatory rheumatic diseases (IRD). In particular when rare outcomes or rare diseases are to be investigated, collaborative approaches are required. However, joint data analyses are often li...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2020-218356
更新日期:2021-01-01 00:00:00
abstract::Rheumatoid arthritis (RA) is an autoimmune disease characterised by chronic inflammation of the joints. Anti-citrullinated protein antibodies (ACPA) are highly specific for RA and are associated with a more severe disease progression. ACPA have also been shown to have a pathological role in RA. In animal models of RA,...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,收录出版,评审
doi:10.1136/ard.2010.138032
更新日期:2011-03-01 00:00:00
abstract:OBJECTIVE:To investigate the prediction of the postpartum onset of rheumatoid arthritis (RA). METHODS:Two thousand five hundred and forty seven healthy pregnant subjects were examined prospectively and the relation between serum rheumatoid factors (RF) and postpartum onset of RA was observed. Rheumatoid factors were m...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.57.8.460
更新日期:1998-08-01 00:00:00
abstract::On exposure to sucrose or neutral polysaccharides, cell cultures from human synovium showed cytoplasmic vacuolation, increased numbers of lysosomes, and ultrastructural changes simulating those described in rheumatoid synovial intima and similarly treated embryonic caritlage and bone. These changes were accompanied by...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.36.2.130
更新日期:1977-04-01 00:00:00
abstract:OBJECTIVE:To compare arterial haemodynamics in adults with long-term juvenile idiopathic arthritis (JIA) to that of healthy controls, and explore the influence of traditional cardiovascular risk factors and disease characteristics on arterial haemodynamics plus coronary artery calcification. METHODS:87 JIA patients (m...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2013-204804
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVE:To carry out a critical appraisal of the literature in an attempt to assess the current value of synovial fluid (SF) analysis in the diagnosis of joint disease. METHODS:A literature search was undertaken using the Medline, Biomed, Bids, Pubmed, and Embase electronic databases using the keywords: synovial flu...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,评审
doi:10.1136/ard.61.6.493
更新日期:2002-06-01 00:00:00