Abstract:
INTRODUCTION:Immunological studies of giant cell arteritis (GCA) suggest that a triggering antigen of unknown nature could generate a specific immune response. We thus decided to detect autoantibodies directed against endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) in the serum of GCA patients and to identify their target antigens. METHODS:Sera from 15 GCA patients were tested in 5 pools of 3 patients' sera and compared to a sera pool from 12 healthy controls (HCs). Serum immunoglobulin G (IgG) reactivity was analysed by 2-D electrophoresis and immunoblotting with antigens from human umbilical vein ECs (HUVECs) and mammary artery VSMCs. Target antigens were identified by mass spectrometry. RESULTS:Serum IgG from GCA patients recognised 162 ± 3 (mean ± SD) and 100 ± 17 (mean ± SD) protein spots from HUVECs and VSMCs, respectively, and that from HCs recognised 79 and 94 protein spots, respectively. In total, 30 spots from HUVECs and 19 from VSMCs were recognised by at least two-thirds and three-fifths, respectively, of the pools of sera from GCA patients and not by sera from HCs. Among identified proteins, we found vinculin, lamin A/C, voltage-dependent anion-selective channel protein 2, annexin V and other proteins involved in cell energy metabolism and key cellular pathways. Ingenuity pathway analysis revealed that most identified target antigens interacted with growth factor receptor-bound protein 2. CONCLUSIONS:IgG antibodies to proteins in the proteome of ECs and VSMCs are present in the sera of GCA patients and recognise cellular targets that play key roles in cell biology and maintenance of homeostasis. Their potential pathogenic role remains to be determined.
journal_name
Arthritis Res Therjournal_title
Arthritis research & therapyauthors
Régent A,Dib H,Ly KH,Agard C,Tamby MC,Tamas N,Weksler B,Federici C,Broussard C,Guillevin L,Mouthon Ldoi
10.1186/ar3388subject
Has Abstractpub_date
2011-06-28 00:00:00pages
R107issue
3eissn
1478-6354issn
1478-6362pii
ar3388journal_volume
13pub_type
杂志文章abstract:INTRODUCTION:Osteoarthritis (OA) is a degenerative disease characterized by cartilage breakdown in the synovial joints. The presence of low-grade inflammation in OA joints is receiving increasing attention, with synovitis shown to be present even in the early stages of the disease. How the synovial inflammation arises ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3555
更新日期:2012-01-08 00:00:00
abstract:INTRODUCTION:Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease primarily involving the synovium. Evidence in recent years has suggested that the bone marrow (BM) may be involved, and may even be the initiating site of the disease. Abnormalities in haemopoietic stem cells' (HSC) survival, proliferation ...
journal_title:Arthritis research & therapy
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
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journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar2141
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journal_title:Arthritis research & therapy
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journal_title:Arthritis research & therapy
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journal_title:Arthritis research & therapy
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3836
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abstract::Glucosamine in its acetylated form is a natural constituent of some glycosaminoglycans (for example, hyaluronic acid and keratan sulfate) in the proteoglycans found in articular cartilage, intervertebral disc and synovial fluid. Glucosamine can be extracted and stabilized by chemical modification and used as a drug or...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4442
更新日期:2014-01-17 00:00:00
abstract::A growing body of literature has demonstrated that the multifunctional glycoprotein osteopontin (OPN), has a role in type I interferon (IFN) production and may be involved in systemic lupus erythematosus (SLE) pathogenesis. A recent report has provided further support for this, demonstrating an association between rai...
journal_title:Arthritis research & therapy
pub_type: 评论,社论
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更新日期:2013-03-08 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4067
更新日期:2012-10-19 00:00:00
abstract::Prostaglandin E2 (PGE2) plays an important role in bone development and metabolism. To interfere therapeutically in the PGE2 pathway, however, knowledge about the involved enzymes (cyclooxygenases) and receptors (PGE2 receptors) is essential. We therefore examined the production of PGE2 in cultured growth plate chondr...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar1948
更新日期:2006-01-01 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 评论,社论
doi:10.1186/ar1894
更新日期:2006-01-01 00:00:00
abstract::Antineutrophil antibodies are well recognized causes of neutropenia, producing both quantitative and qualitative defects in neutrophils and increased risk for infection. In primary autoimmune neutropenia (AIN) of infancy, a moderate to severe neutropenia is the sole abnormality; it is rarely associated with serious in...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar1803
更新日期:2005-01-01 00:00:00
abstract:INTRODUCTION:Rituximab (RTX) therapy of rheumatoid arthritis (RA) exhibits enhanced effectiveness in seropositive patients. Using patient sera, we tested if this improved efficacy was associated with enhanced RTX mediated complement-dependent cytotoxicity (RTX-CDC). METHODS:We developed an in vitro assay for RTX-CDC u...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4152
更新日期:2013-01-25 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-017-1339-4
更新日期:2017-06-06 00:00:00
abstract::Chemokines play an essential role in the progression of rheumatoid arthritis (RA). In the present study we examined the expression and regulatory mechanisms of IFN-gamma inducible protein (IP)-10 in RA synovitis. RA synovial fluid contained greater amounts of IP-10 than did synovial fluid from patients with osteoarthr...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar616
更新日期:2003-01-01 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3742
更新日期:2012-02-15 00:00:00
abstract:BACKGROUND:Intervertebral disc degeneration (IVDD)-related disorders are the major causes of low back pain. A previous study suggested that Notch activation serves as a protective mechanism and is a part of the compensatory response that maintains the necessary resident nucleus pulposus (NP) cell proliferation to repla...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-019-1990-z
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2844
更新日期:2009-01-01 00:00:00
abstract::Irreversible destruction of joint structures is a major feature of osteoarthritis and rheumatoid arthritis. Fibrillar collagens in bone, cartilage and other soft tissues are critical for optimal joint form and function. Several approaches can be used to ascertain the role of collagenases, matrix metalloproteinases, in...
journal_title:Arthritis research & therapy
pub_type: 评论,社论
doi:10.1186/ar600
更新日期:2003-01-01 00:00:00
abstract:INTRODUCTION:Interferon alpha (IFN-α) has a complex role in autoimmunity, in that it may both enhance and prevent inflammation. We have previously shown that the presence of IFN-α at sensitization protects against subsequent antigen-triggered arthritis. To understand this tolerogenic mechanism, we performed a descripti...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4326
更新日期:2013-10-03 00:00:00
abstract:OBJECTIVE:To assess the associations between aspartate transaminase/alanine transaminase ratio (DRR) and mortality in patients with polymyositis/dermatomyositis-associated interstitial lung disease (PM/DM-ILD). PATIENTS AND METHODS:This was a retrospective cohort study, which included 522 patients with PM/DM-ILD whose...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-020-02286-w
更新日期:2020-09-20 00:00:00
abstract:INTRODUCTION:Systemic lupus erythematosus (SLE) is a chronic autoimmune disease. Cardiovascular disease (CVD) is common and a major cause of mortality. Studies on cardiovascular morbidity are abundant, whereas mortality studies focusing on cardiovascular outcomes are scarce. The aim of this study was to investigate cau...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3759
更新日期:2012-01-01 00:00:00
abstract:INTRODUCTION:Brain-derived neurotrophic factor (BDNF) was first identified in the intervertebral disc (IVD) when its molecular upregulation was observed in sections of nucleus pulposus cultured under conditions of increased osmolarity. BDNF is now known to be involved in a number of biologic functions, including regula...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2456
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Here we integrate verified signals from previous genetic association studies with gene expression and pathway analysis for discovery of new candidate genes and signaling networks, relevant for rheumatoid arthritis (RA). METHOD:RNA-sequencing-(RNA-seq)-based expression analysis of 377 genes from previously v...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-017-1220-5
更新日期:2017-02-02 00:00:00
abstract:BACKGROUND:Tumor necrosis factor inhibitors (TNFi) are common second-line treatments for rheumatoid arthritis (RA). This study was designed to compare the real-world clinical and economic outcomes between patients with RA who responded to TNFi therapy and those who did not. METHODS:For this retrospective cohort analys...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-017-1293-1
更新日期:2017-05-15 00:00:00
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journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-020-02157-4
更新日期:2020-03-24 00:00:00