Abstract:
OBJECTIVES:Chondrocytic matrix metalloproteinases (MMPs) are believed to be important in osteoarthritic cartilage degradation. The cartilage lesion of osteoarthritis (OA) is focal and often progressive. During its development chondrocytes differentially up and down regulate production of mRNA for individual MMPs. This observation has potential implications for understanding the disease processes that lead to progressive cartilage loss in OA and designing appropriate targeted treatment. The complex regulation of MMP mediated effects means there is a pressing need to establish whether visualisation of MMP mRNA or protein equates to enzyme activity. The technique of in situ zymography (ISZ) offers a way of examining diseased human tissue for in vivo production of an excess of degrading enzyme over inhibitor. The primary objective of this study was to assess, and if positive follow, collagen II degrading activity in cartilage during development of the OA lesion. A secondary objective was to assess whether there was any correlation between sites of collagen II degrading activity and expression of the collagenase (MMP-13), recently implicated in type II collagen degredation in this lesion. METHODS:Biopsied human normal and osteoarthritic cartilage, showing various degrees of damage, was examined by in situ zymography, with and without enzyme inhibitors, to establish sites of type II collagenase activity. Paired samples were probed for MMP-13 mRNA using 35S-labelled oligonucleotide probes. Comparative analyses were performed. RESULTS:In situ zymography showed collagen II degrading activity over chondrocytes only in osteoarthritic cartilage. Distribution and amount varied with the extent of cartilage damage and position of chondrocytes, being greatest in deep cartilage and in cartilage lesions where fissuring was occurring. The enzyme causing the degradation behaved as a matrix metalloproteinase. MMP-13 mRNA expression codistributed with the type II collagenase activity. CONCLUSION:In OA, chondrocytes can degrade type II collagen. The type II collagen degrading activity varies in site and amount as the cartilage lesion progresses and throughout codistributes with MMP-13 mRNA expression.
journal_name
Ann Rheum Disjournal_title
Annals of the rheumatic diseasesauthors
Freemont AJ,Byers RJ,Taiwo YO,Hoyland JAdoi
10.1136/ard.58.6.357subject
Has Abstractpub_date
1999-06-01 00:00:00pages
357-65issue
6eissn
0003-4967issn
1468-2060journal_volume
58pub_type
杂志文章abstract:OBJECTIVE:To assess the efficacy and safety of golimumab over 104 weeks in patients with active ankylosing spondylitis. METHODS:At baseline, patients with active ankylosing spondylitis (n=356) were randomly assigned (1:1.8:1.8) to subcutaneous injections of placebo (group 1), golimumab 50 mg (group 2) or golimumab 100...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1136/ard.2011.154799
更新日期:2012-05-01 00:00:00
abstract:OBJECTIVE:To study further the temporal clustering of ankylosing enthesopathy (AE) noted originally during a study of the influence of mouse major histocompatibility complex (MHC) H-2 and transgenic HLA-B27 on the frequency of AE. METHODS:The relationship between maternal age at littering and frequency of AE was analy...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.54.9.754
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVES:To investigate the efficacy and safety of peficitinib, an oral Janus kinase inhibitor, in patients with rheumatoid arthritis (RA). METHODS:In this double-blind phase III study, patients with RA and an inadequate response to prior disease-modifying anti-rheumatic drugs (DMARDs) were randomised to peficitinib...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,随机对照试验
doi:10.1136/annrheumdis-2019-215163
更新日期:2019-10-01 00:00:00
abstract::A 46 year old man presented with a growing mass over his wrist. Erosions of the triquetrum and hamate were present radiographically. Magnetic resonance imaging (MRI) showed a solid mass arising from the extensor carpi ulnaris tendon, which was T(1) hypointense and isointense, T(2) hypointense, and bloomed on gradient ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.60.6.550
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVE:To evaluate the presence of flow by Doppler ultrasound (DUS) in the wrist and finger joints (carpometacarpal 1 (CMC1), metacarpophalangeal (MCP), and proximal interphalangeal (PIP) joints) of healthy controls. METHODS:Twenty seven healthy volunteers (15 women, 12 men; mean age 45 years, range 18-93) with a t...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2003.009548
更新日期:2004-06-01 00:00:00
abstract:BACKGROUND:Human leucocyte antigen (HLA) genes predict disease severity in psoriasis (HLA-Cw6) and rheumatoid arthritis (shared epitope (SE)), but the situation is unclear for psoriatic arthritis (PsA). AIM:To determine the association of the HLA-Cw6 and HLA-DRB1 gene with disease severity in a large UK cohort with Ps...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2006.064972
更新日期:2007-06-01 00:00:00
abstract:OBJECTIVE:To assess the usefulness of high resolution computed tomography (HRCT) of the lungs in patients with rheumatoid arthritis (RA) with and without respiratory symptoms. PATIENTS AND METHODS:Eighty eight RA patients with a mean duration of disease 12 (SD 8) years were evaluated. Eleven patients were excluded bec...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.54.10.815
更新日期:1995-10-01 00:00:00
abstract:OBJECTIVE:To assess the diagnostic value of ultrasonography (US) in the evaluation of arthritic shoulder joints. METHODS:Twenty shoulders of 20 inpatients with arthritis were evaluated by US one day before the shoulder operation. Changes in the subacromial-subdeltoid bursa, biceps tendon and tendon sheath, rotatof cuf...
journal_title:Annals of the rheumatic diseases
pub_type: 临床试验,杂志文章
doi:10.1136/ard.57.6.357
更新日期:1998-06-01 00:00:00
abstract::A 60-year-old man with destructive rheumatoid disease, multiple nodules, and vasculitis developed a facial rash with ulceration and scarring. Histology showed granulomatous vasculitis. The rash was rapidly controlled with oral corticosteroids. Granulomatous vasculitis has not previously been reported as causing this c...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.45.1.75
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:To define the relationship between autoantigen citrullination and different peptidylarginine deiminase (PAD) enzymes in rheumatoid arthritis (RA). METHODS:Citrullinated autoantigens were identified by immunoblotting control and ionomycin-activated human primary neutrophil lysate with RA sera. Autoantigen ide...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2011.151712
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:To determine whether the number of patients required in a therapeutic trial that uses progression of radiological abnormalities as the outcome measure would be similar for multiple centres. METHODS:The progression of radiological damage to the fingers and wrists of patients with rheumatoid arthritis in five ...
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.52.5.332
更新日期:1993-05-01 00:00:00
abstract:OBJECTIVES:To identify predictors of clinical remission as well as of no x-ray progression in a cohort of early rheumatoid arthritis (ERA) treated with a tight-control protocol. METHODS:A total of 121 consecutive patients with ERA were treated to reach European League Against Rheumatism (EULAR) and/or American College...
journal_title:Annals of the rheumatic diseases
pub_type: 临床试验,杂志文章
doi:10.1136/ard.2010.142729
更新日期:2011-07-01 00:00:00
abstract::A putative retravirus was isolated from a cell culture derived by fusion of mink and dog cell lines with cultured placental cells from a patient with systemic lupus erythematosus. The virus was detected by reverse transcriptase assay of supernatant medium after prolonged subculturing. Its characterisation, including s...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.37.3.234
更新日期:1978-06-01 00:00:00
abstract::Information has been collected on 10 patients, 9 with marrow depression and 1 in whom the diagnosis was presumed. Six of the 10 patients died. The sequentially recorded blood counts on at least 5 of the patients showed a downward trend of the white cell and platelet counts while D-penicillamine was still being adminis...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.38.3.232
更新日期:1979-06-01 00:00:00
abstract:OBJECTIVES:To assess the effect of an intra-articular presentation of stress (heat shock) proteins (hsp) on joint inflammation. METHODS:Wistar rats were sensitised with a suspension of heat killed Mycobacterium tuberculosis in oil in the scruff of the neck and challenged intra-articularly with stress protein or M tube...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.53.3.197
更新日期:1994-03-01 00:00:00
abstract:OBJECTIVE:We sought to determine histologic and gene expression features of clinical improvement in early diffuse cutaneous systemic sclerosis (dcSSc; scleroderma). METHODS:Fifty-eight forearm biopsies were evaluated from 26 individuals with dcSSc in two clinical trials. Histologic/immunophenotypic assessments of glob...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2020-217840
更新日期:2021-02-01 00:00:00
abstract:BACKGROUND:Persistent fibroblast activation initiated by transforming growth factor β (TGF-β) is a fundamental event in the pathogenesis of systemic sclerosis, and its pharmacological inhibition represents a potential therapeutic strategy. The nuclear receptor, peroxisome proliferator-activated receptor γ (PPAR-γ), exe...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2012-202716
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVE:To improve the understanding of the pathogenesis of rheumatoid arthritis (RA) by identifying novel, disease specific autoantibodies. METHODS:Total protein preparations from synovial membranes were separated electrophoretically and immunoblotted. Sera from RA patients were screened for predominant immunoreact...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.54.5.355
更新日期:1995-05-01 00:00:00
abstract::Three patients presented with septal fasciitis and panniculitis, associated with clinical and laboratory features which precluded straight-forward classification into eosinophilic fasciitis, localised scleroderma, or lupus erythematosus profundus. Treatment with cimetidine caused the remission of cutaneous manifestati...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.49.10.788
更新日期:1990-10-01 00:00:00
abstract:OBJECTIVES:Systemic lupus erythematosus (SLE) is a serious multisystem autoimmune disease, mediated by disrupted B cell quiescence and typically treated with glucocorticoids. We studied whether B cells in SLE are regulated by the glucocorticoid-induced leucine zipper (GILZ) protein, an endogenous mediator of anti-infla...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2015-207744
更新日期:2016-04-01 00:00:00
abstract:OBJECTIVE:Domains identified as a result of qualitative research and Delphi exercises to assess rheumatoid arthritis (RA) flare include pain, function, swollen and tender joints, patient and physician global, laboratory measures, participation, stiffness, self-management and fatigue. Here we examine aspects of construc...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,多中心研究
doi:10.1136/annrheumdis-2013-203496
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVES:To describe patients with autoimmune inflammatory rheumatic diseases (AIRD) who had COVID-19 disease; to compare patients who required hospital admission with those who did not and assess risk factors for hospital admission related to COVID-19. METHODS:An observational longitudinal study was conducted durin...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2020-217984
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:In the present work, the frequency of inherited polymorphisms of the beta2 adrenergic receptor (beta2AR) gene and their association with rheumatoid arthritis (RA) as well as human leukocyte antigen (HLA)-DRB1 alleles was examined. METHODS:An allele-specific polymerase chain reaction was used to determine the...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2007.083782
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVE:To identify potential risk factors for the onset of inflammatory arthritis (IA) in a large cohort of patients with psoriatic arthritis (PsA) of recent onset. METHODS:We recruited cases with psoriasis and an onset of IA within the past 5 years. Controls were patients who had psoriasis but no arthritis. We ass...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2007.073932
更新日期:2008-05-01 00:00:00
abstract::In a double blind, single observer, 48 week study the effects of sulphasalazine (2 g daily) and hydroxychloroquine (400 mg daily months 0-6, thereafter 200 mg daily) were compared in 60 patients with definite or classical rheumatoid arthritis. They had not been treated previously with second line drugs. The onset of r...
journal_title:Annals of the rheumatic diseases
pub_type: 临床试验,杂志文章
doi:10.1136/ard.48.5.389
更新日期:1989-05-01 00:00:00
abstract:BACKGROUND:Preliminary clinical criteria based on age, inflammation, and immobility have been proposed to identify which patients with rheumatoid arthritis (RA) should be examined by dual energy x ray absorptiometry (DXA) to diagnose osteoporosis. The three item criteria have not been evaluated in male patients with RA...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.61.12.1085
更新日期:2002-12-01 00:00:00
abstract::A family is described in which the mother and 2 of the 5 children had Felty's syndrome, a pattern of inheritance suggesting a dominant defect and one which has not previously been reported. The family is also of interest in that the other sib had rheumatoid arthritis. ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.35.3.279
更新日期:1976-06-01 00:00:00
abstract:OBJECTIVE:Ankylosing spondylitis (AS) and periodontal disease (PD) are characterised by dysregulation of the host inflammatory response, resulting in soft and hard connective tissue destruction. AS has been related to other inflammatory diseases, however, there is a paucity of data on whether AS is associated with infl...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2008.097212
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Oral glucosamine preparations are widely used as a treatment for osteoarthritis, purportedly functioning by a variety of mechanisms suggested by results of in vitro experiments, and generally using glucosamine concentrations well in excess of 100 micromol/l. OBJECTIVE:To use high performance liquid chromato...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2005.036368
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVE:To estimate the effects of biological drugs on the risk of demyelinating events in rheumatoid arthritis (RA). METHODS:Case-control analyses nested in an administrative database cohort. RESULTS:Initially the risk of demyelinating events appeared to be increased after exposure to anakinra and decreased after ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2009.111500
更新日期:2010-09-01 00:00:00