Abstract:
INTRODUCTION:Extracellular matrix (ECM) degradation leads to malfunction of the cartilage in osteoarthritis (OA). Inflammatory cytokine interleukin-1 beta (IL-1β) functions in ECM degradation and prevents ECM synthesis by down-regulating the key transcription factor, Sox9, and consequently inhibiting ECM gene expression. Evidence reveals that microRNAs (miRNA) have been associated with OA, but little is known of their function in chondrocyte ECM degradation. This study aimed to identify possible miRNAs that mediate IL-1β-induced down-regulation of Sox9 as well as its known down-stream genes, collagen type II and aggrecan. METHODS:The miRNAs were predicted based on three classical databases. The expression levels of the predicted miRNAs were assessed in IL-1β stimulated chondrocytes by real-time PCR. A luciferase reporter was used to test the binding of the miRNAs to the 3' untranslated regions (3'UTR) of Sox9. The predicted miRNAs were transfected into chondrocytes to validate their relationship with Sox9. Functional analysis of the miRNAs on chondrocytes ECM degradation was performed at both the mRNA and protein levels after miRNA transfection and IL-1β treatment. RESULTS:Six miRNAs were predicted to target Sox9, and their expression in IL-1β-stimulated chondrocytes was revealed by real-time PCR. The luciferase reporter assay indicated that only miR-101 could bind to the 3'UTR of Sox9. The expression of Sox9 was likewise negatively regulated by miR-101 in rat chondrocytes. Functional analysis showed that miR-101 could aggravate chondrocyte ECM degradation, whereas miR-101 inhibition could reverse IL-1β-induced ECM degradation. CONCLUSION:miR-101 participates in IL-1β-induced chondrocyte ECM degradation. Down-regulating miR-101 expression can prevent the IL-1β-induced ECM degradation in chondrocytes. miR-101 probably functions by directly targeting Sox9 mRNA.
journal_name
Arthritis Res Therjournal_title
Arthritis research & therapyauthors
Dai L,Zhang X,Hu X,Zhou C,Ao Ydoi
10.1186/ar4114subject
Has Abstractpub_date
2012-12-10 00:00:00pages
R268issue
6eissn
1478-6354issn
1478-6362pii
ar4114journal_volume
14pub_type
杂志文章abstract::Current evidence implicates intervertebral disc degeneration as a major cause of low back pain, although its pathogenesis is poorly understood. Numerous characteristic features of disc degeneration mimic those seen during ageing but appear to occur at an accelerated rate. We hypothesised that this is due to accelerate...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2198
更新日期:2007-01-01 00:00:00
abstract:INTRODUCTION:There is inconsistent association between urate transporters SLC22A11 (organic anion transporter 4 (OAT4)) and SLC22A12 (urate transporter 1 (URAT1)) and risk of gout. New Zealand (NZ) Māori and Pacific Island people have higher serum urate and more severe gout than European people. The aim of this study w...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4417
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:In osteoarthritis, chondrocytes adopt an abnormal hypertrophic morphology and upregulate the expression of the extracellular matrix-degrading enzymes, MMP-13 and ADAMTS-5. The activation of the hedgehog signalling pathway has been established in osteoarthritis and is thought to influence both of these proces...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-015-0891-z
更新日期:2015-12-24 00:00:00
abstract:INTRODUCTION:Triamcinolone acetonide (TA) is used for osteoarthritis management to reduce pain, and pre-clinical studies have shown that TA limits osteophyte formation. Osteophyte formation is known to be facilitated by synovial macrophage activation. TA injections might influence macrophage activation and subsequently...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-015-0865-1
更新日期:2015-12-05 00:00:00
abstract:INTRODUCTION:Vagus nerve stimulation (VNS) exerts beneficial anti-inflammatory effects in various animal models of inflammation, including collagen-induced arthritis, and is implicated in representing a novel therapy for rheumatoid arthritis. However, evidence of anti-inflammatory effects of VNS in humans is very scarc...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,随机对照试验
doi:10.1186/s13075-015-0667-5
更新日期:2015-06-07 00:00:00
abstract:RESULTS:Anti-CarP antibodies were detected in 117 patients with RA (37.9%), ACPA in 190 patients (61.4%) and RF in 202 patients (65.3%). Two (2.04%) of the NHS were positive for anti-CarP, one NHS (1.02%) was positive for ACPA and three NHS were positive for RF (3.06%). Among disease controls, anti-CarP antibodies were...
journal_title:Arthritis research & therapy
pub_type: 已发布勘误
doi:10.1186/s13075-016-1205-9
更新日期:2016-12-16 00:00:00
abstract:INTRODUCTION:The c-Jun N-terminal kinase (JNK) is a key regulator of matrix metalloproteinase (MMP) and cytokine production in rheumatoid arthritis (RA) and JNK deficiency markedly protects mice in animal models of arthritis. Cytokine-induced JNK activation is strictly dependent on the mitogen-activated protein kinase ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3750
更新日期:2012-02-21 00:00:00
abstract:BACKGROUND:Arhalofenate acid, the active acid form of arhalofenate, is a non-agonist peroxisome proliferator-activated receptor γ (PPARγ) ligand, with uricosuric activity via URAT1 inhibition. Phase II studies revealed decreased acute arthritis flares in arhalofenate-treated gout compared with allopurinol alone. Hence,...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-018-1699-4
更新日期:2018-09-06 00:00:00
abstract::The detection of autoantibodies in human sera is an important approach to the diagnosis and management of patients with autoimmune conditions. To meet market demands, manufacturers have developed a wide variety of easy to use and cost-effective diagnostic kits that are designed to detect a variety of human serum autoa...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar782
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Stem cell therapy is considered as a promising alternative to treat intervertebral disc degeneration (IDD). Extensive work had been done on identifying and comparing different types of candidate stem cells, both in vivo and in vitro. However, few studies have shed light on degenerative nucleus pulposus cells...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-018-1677-x
更新日期:2018-08-16 00:00:00
abstract::A dose-escalating phase II trial studied masitinib, an oral tyrosine kinase inhibitor, in 43 patients with rheumatoid arthritis. Masitinib induced American College of Rheumatology (ACR)20, ACR50 and ACR70 responses in 54%, 26% and 8% of patients, respectively. A placebo group was not included. Thirty-seven per cent of...
journal_title:Arthritis research & therapy
pub_type: 评论,社论
doi:10.1186/ar2734
更新日期:2009-01-01 00:00:00
abstract::This review summarizes the immunological consequences of biological therapies used in juvenile idiopathic arthritis (JIA). For every frequently used biological agent the characteristics are clearly specified (molecular target, isotype, registered indication for JIA, route of administration, half-life, contraindication...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar4213
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:To determine whether lung involvement is related to microvascular perturbations, nailfold videocapillaroscopy (NVC) was performed in patients with systemic sclerosis (SSc). METHODS:A cross-sectional study was consecutively accomplished in 152 SSc patients. NVC, a pulmonary function test and echocardiography...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-018-1775-9
更新日期:2018-12-19 00:00:00
abstract::Unfortunately, after publication of this article [1], it was noticed that Fig. 2 is incorrect. ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,已发布勘误
doi:10.1186/s13075-018-1700-2
更新日期:2018-09-10 00:00:00
abstract:INTRODUCTION:UK guidelines recommend that all early active rheumatoid arthritis (RA) patients are offered combination disease-modifying antirheumatic drugs (DMARDs) and short-term corticosteroids. Anti-citrullinated protein antibody (ACPA)-positive and ACPA-negative RA may differ in their treatment responses. We used d...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,随机对照试验
doi:10.1186/ar4439
更新日期:2014-01-16 00:00:00
abstract::Established rheumatoid arthritis (RA) is associated with a doubled cardiovascular risk. However, data about the cardiovascular risk in early RA are scarce. Preclinical atherosclerosis can be reliably assessed with the carotid intima media thickness (cIMT), and the cIMT is a well-validated predictor of cardiovascular e...
journal_title:Arthritis research & therapy
pub_type: 评论,社论
doi:10.1186/ar3126
更新日期:2010-01-01 00:00:00
abstract::Post-traumatic osteoarthritis (PTOA) develops after joint injury. Specifically, patients with anterior cruciate ligament (ACL) injury have a high risk of developing PTOA. In this review, we outline the incidence of ACL injury that progresses to PTOA, analyze the role of ACL reconstruction in preventing PTOA, suggest p...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/s13075-020-02156-5
更新日期:2020-03-24 00:00:00
abstract::Historically, the osteoblast has been considered the master cell in the control of osteoclast development and, therefore, bone resorption. Now the interactions between cells of the immune system and bone cells have redefined our thinking on the regulation of bone resorption. Moreover, the crosstalk between these cell ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar2141
更新日期:2007-01-01 00:00:00
abstract:INTRODUCTION:Cartilage oligomeric matrix protein (COMP) is found at elevated concentrations in sera of patients with joint diseases such as rheumatoid arthritis (RA) and osteoarthritis (OA). We recently showed that COMP activates complement via the alternative pathway and that COMP-C3b complexes are present in sera of ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3694
更新日期:2012-01-20 00:00:00
abstract::The past 10 years have seen the description of families of receptors that drive proinflammatory cytokine production in infection and tissue injury. Two major classes have been examined in the context of inflammatory joint disease--the Toll-like receptors (TLRs) and NOD-like receptors (NLRs). TLRs such as TLR2 and TLR4...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar2729
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Galactosylation of immunoglobulin G (IgG) is reduced in rheumatoid arthritis (RA) and assumed to correlate with inflammation and altered humoral immunity. IgG hypogalactosylation also increases with age. To investigate dependencies in more detail, we compared IgG hypogalactosylation between patients with RA,...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-018-1540-0
更新日期:2018-03-14 00:00:00
abstract:OBJECTIVES:To investigate the relationships between interferon alpha (IFNα) and the clinical and serological phenotype of patients with systemic autoimmune rheumatic disease (SARDs) in order to determine whether a distinct subpopulation of patients can be identified. METHODS:We recruited patients with at least 1 SARD ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-019-1929-4
更新日期:2019-06-14 00:00:00
abstract:INTRODUCTION:Enhanced B cell activity, particularly memory B cells have gained interest in evaluating response during therapies with biologics. CD27-IgD- double-negative (DN) B cells lacking the conventional memory marker CD27 are reported to be part of the memory compartment, however, only scarce data is available for...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-015-0580-y
更新日期:2015-03-14 00:00:00
abstract:INTRODUCTION:HLA-B*35 is associated with increased risk of developing pulmonary hypertension in SSc patients. We previously reported that HLA-B*35 induces endothelial cell dysfunction via activation of ER stress/UPR and upregulation of the inflammatory response. Because PBMCs from lcSSc-PAH patients are also characteri...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-015-0881-1
更新日期:2015-12-16 00:00:00
abstract::Collagen-induced arthritis (CIA), an approved animal model for rheumatoid arthritis, is thought to be a T cell-dependent disease. There is evidence that CD8+ T cells are a major subset controlling the pathogenesis of CIA. They probably contribute to certain features of disease, namely tissue destruction and synovial h...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar1758
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:Up to 12% of patients with systemic sclerosis (SSc) have anti-neutrophil cytoplasmic antibodies (ANCA). However, the majority of these patients do not manifest ANCA-associated vasculitis (AAV) and the significance of ANCA in these patients is unclear. The aim of this study is to determine the prevalence of A...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,多中心研究
doi:10.1186/s13075-019-1839-5
更新日期:2019-02-14 00:00:00
abstract:BACKGROUND:Nearly all secreted proteins are glycosylated, and serum glycoproteins that exhibit disease-associated glycosylation changes have potential to be biomarkers. In rheumatoid arthritis (RA), C-reactive protein (CRP), and matrix metalloproteinase-3 (MMP-3) are widely used as serologic biomarkers, but they lack s...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-016-1013-2
更新日期:2016-05-21 00:00:00
abstract:INTRODUCTION:Although rheumatoid arthritis (RA) is generally a chronic disease, a proportion of RA-patients achieve disease-modifying antirheumatic drug (DMARD)-free sustained remission, reflecting loss of disease-persistence. To explore mechanisms underlying RA-persistence, we performed a candidate gene study. We hypo...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-015-0739-6
更新日期:2015-09-08 00:00:00
abstract:BACKGROUND:The aims of the present study were to determine the relationship between bone destruction and bone formation in the delayed-type hypersensitivity arthritis (DTHA) model and to evaluate the effect of receptor activator of nuclear factor κB ligand (RANKL) blockade on severity of arthritis, bone destruction, an...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-016-0931-3
更新日期:2016-01-23 00:00:00
abstract::Following publication of the original article [1], the authors reported a typesetting error. ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,已发布勘误
doi:10.1186/s13075-018-1753-2
更新日期:2018-11-05 00:00:00